Today, the Zhejiang Provincial Department of Construction issued the “Key Points for Quality and Safety Supervision of Prefabricated
Today, the Zhejiang Provincial Department of Construction issued the “Key Points for Quality and Safety Supervision of Prefabricated Building Construction in Zhejiang Province”. This key point is mainly aimed at building projects where the upper main structure adopts two common structures, prefabricated concrete structure and prefabricated steel structure. It supervises quality and safety behavior, engineering entity quality, construction site safety, and proposes advocacy requirements for green construction and occupational health, information management, and other aspects of prefabricated buildings..
It is important to establish an information management system for prefabricated construction projects, in order to achieve quality and safety management throughout the entire construction process and traceability of quality and safety responsibilities..
The key points are clear, and the construction unit should fulfill the primary responsibility for the quality and safety of prefabricated construction projects. The project leader of the construction unit should be authorized in writing by the legal representative of the unit and sign a lifelong commitment letter for quality and safety..
Original link: https://jst.zj.gov.cn/art/2024/4/17/art_1229726449_58935421.html.
At the same time, the Zhejiang Provincial Department of Construction has also issued three relevant documents for prefabricated interior decoration, including the “Guidelines for Design of Prefabricated Interior Decoration”, the “Interim Provisions on Construction Quality Acceptance of Prefabricated Decoration Projects in Zhejiang Province”, and the “Key Points for Quality and Safety Supervision of Prefabricated Decoration Projects in Zhejiang Province”, which involve design, quality and safety supervision, and construction quality acceptance..
Original link: https://jst.zj.gov.cn/art/2024/4/17/art_1229726449_58935422.html.
Original link: https://jst.zj.gov.cn/art/2024/4/17/art_1229726449_58935418.html.
Original link: https://jst.zj.gov.cn/art/2024/4/17/art_1229726449_58935419.html2024-2030 Market Research and Development Trend Forecast Report on Prefabricated Construction Industry in 2025: It is estimated that the market size of prefabricated steel structure buildings in China will reach 753.3 billion yuan by 2025.
Encouraging the development of prefabricated buildings has become one of the important construction industry policies in China at present. Since the release of the Guiding Opinions on Vigorously Developing Prefabricated Buildings in 2016 (Guoban Fa [2016] No. 71), a large number of policy documents related to prefabricated buildings have been released in the context of China’s construction industry scale reaching new highs. Various standards have gradually improved, development indicators have become clearer and higher, and various parts of the country have shown a high-speed development trend of simultaneous progress. Key development areas have taken the lead in entering the stage of high-quality and green low-carbon development..
1. The prefabricated construction industry is an important development direction for the country in the field of construction.
Prefabricated buildings refer to buildings that are transported from factories to construction sites, and assembled and installed on site through reliable connections. Compared with traditional cast-in-place construction, the construction site of prefabricated buildings does not require a large amount of manpower and material resources. Most building components and parts are completed in the production workshop, reducing the loss of building materials and the generation of construction waste, and reducing carbon emissions throughout the entire life cycle of the building. It is the most in line with the “carbon neutrality” concept of construction, in line with the national concept of green and sustainable development, and is an important development direction for the country in the field of construction. From the classification of structural materials, prefabricated buildings can generally be divided into prefabricated concrete buildings, prefabricated steel structure buildings, and prefabricated wood structure buildings..
Prefabricated buildings have been widely promoted and supported worldwide due to their high efficiency, energy conservation, environmental protection, and low-carbon characteristics. The specific advantages are as follows:.
Therefore, whether from the perspective of economic or social benefits, prefabricated buildings are regarded as one of the important paths for the transformation and upgrading of the construction industry, and have a positive effect on achieving the national “dual carbon” goals..
Encouraging the development of prefabricated buildings has become one of the important construction industry policies in China at present. Since the Guiding Opinions on Vigorously Developing Prefabricated Buildings (State Council Document [2016] No. 71), in the context of China’s construction industry reaching new highs in scale, a large number of policy documents related to prefabricated buildings have been released, various standards have been gradually improved, development indicators have become clearer and higher, and various regions across the country have shown a high-speed development trend of simultaneous progress. Key development areas have taken the lead in entering the stage of high-quality and green low-carbon development..
From the perspective of the popularity of prefabricated buildings, foreign countries started earlier in the field of prefabricated buildings. The penetration rate of prefabricated buildings in developed countries such as the United States, Japan, and Europe has currently reached over 70%, while prefabricated buildings in China are just beginning. In 2022, the newly constructed prefabricated buildings in China reached 810 million square meters, an increase of 9.5% compared to 2021, accounting for 26.2% of the new construction area. There is ample room for future penetration rate growth..
Newly started prefabricated building area in China from 2017 to 2022 (100 million square meters).
Prefabricated buildings have seen frequent policies and clear development goals in recent years. The relevant policies revolve around promoting green buildings and accelerating the process of building industrialization, repeatedly proposing to vigorously develop prefabricated buildings..
At present, concrete and steel structures are the main structural types of prefabricated buildings in China. According to the application field, it can be divided into bridge steel structures, modular building products, and building steel structures, all of which belong to the field of prefabricated steel structures. As one of the important supporting materials for prefabricated buildings, steel structures have many advantages such as high strength, light weight, good seismic performance, high space utilization, high industrialization, short construction period, low construction cost, high economic benefits, strong plasticity, wide application fields, and recyclability..
In terms of penetration rate of prefabricated steel structure buildings, the penetration rate of prefabricated steel structure buildings in China increased from 4.1% to 6.9% from 2019 to 2021, and is expected to rise to 40.0% by 2035, with a compound annual growth rate of about 15.30%. The market penetration rate of prefabricated steel structure buildings in China is increasing. Good News | Mingjia Engineering Works Won Third Prize in Hebei Province Prefabricated Farmhouse Design Competition. The Hebei Province Prefabricated Farmhouse Design Competition is hosted by the Provincial Department of Housing and Urban Rural Development, aiming to widely promote the construction methods, characteristics, and advantages of prefabricated farmhouses, enrich the selection of prefabricated farmhouse styles, and actively promote the pilot work of prefabricated farmhouse construction in the province..
The competition takes the current construction method of prefabricated rural houses in the “Technical Standards for Prefabricated Rural Housing” (DB13 (J)/T 8530-2023) of Hebei Province as the starting point, combines with the actual construction of rural houses in the province, practices the concept of green, low-carbon and local style, and forms a set of prefabricated rural house design schemes with Hebei characteristics, which are available for construction farmers to choose independently..
In this prefabricated rural housing design competition, our company fully leverages the technical and talent advantages of the design industry and actively participates in it. The competition plan starts from the actual needs of farmers, based on the existing conditions of homesteads and the construction technology of prefabricated rural houses, and comprehensively solves problems such as housing safety, building energy efficiency, style and appearance, sanitary toilets, and sewage discharge. It fully considers the economic capacity, acceptance process, living customs, and production practices of farmers who build houses. The plan can be implemented, implemented, and promoted..
The award-winning works will be compiled into the “Hebei Province Prefabricated Farmhouse Design Competition Collection” and distributed for promotion in various regions, for farmers to choose from when building houses, to help improve the design level of prefabricated farmhouses, promote pilot construction, and enhance the rural architectural style..
Total budget: 245100 yuan (including the cost of foundation, main body, water, heating and electricity, and doors and windows).
The wall steel mesh outer membrane composite structure of this plan is composed of stacked steel wire mesh insulation boards prefabricated and produced by the factory. After on-site assembly and fixation, concrete is poured simultaneously on both sides of the insulation core board; The prefabricated floor slab adopts fixed formwork reinforced steel truss floor support plate, which is also manufactured in the factory. After on-site installation, the steel bars are tied and poured into concrete; This type of application is widely used in rural housing construction, with flexible layout and high acceptability..
Bright Brand Exhibition Strength | Mingjia Project Helps 2024 Beijing Tianjin Hebei Human Resources Service Industry High Quality Development Conference.
Good news | Our company has signed a strategic cooperation agreement with Guangzhou Shanshui Bide Design Co., Ltd.
Good news | Mingjia Engineering Dingfuli Community Renovation Project has been awarded the Provincial Excellent Award! 【 Media Focus 】 After 3 months of operation, the order volume exceeded 10000. Our city’s first prefabricated “optical storage charging inspection” overcharging station has a charging capacity of over 250000 kilowatt hours. Recently, reporters learned from Zuohai Group that as the first “optical storage charging inspection” overcharging demonstration station built in the “14th Five Year Plan” for electric vehicle charging infrastructure planning, the Jin’an Lake Park overcharging demonstration station has exceeded 10000 orders and a charging capacity of over 250000 kilowatt hours since its operation for 3 months..
It is understood that the “Light Storage and Charging Inspection” overcharging demonstration station in Jin’an Lake Park adopted prefabricated construction technology for the first time, and was completed and put into use in just over a month. The charging station covers an area of 2000 square meters and integrates “photovoltaic+energy storage+charging+battery detection”. It has 24 charging parking spaces and is equipped with an energy storage battery system with a capacity of up to 800kW. It supports 180kW fast charging and battery detection functions, with a range of 150 kilometers in 10 minutes of charging. New energy vehicles that support fast charging can charge more than 80% of their electricity in half an hour. The charging station is equipped with facilities such as convenience stores, trade union stations, and driver rest rooms, creating a safe and convenient charging experience with both people and vehicles..
According to Zuohai New Energy Technology Company, which is responsible for building the station, the station is different from ordinary fast charging stations. It adopts the most advanced energy storage and battery detection technology, combined with photovoltaic power generation, and utilizes the peak valley electricity price difference cycle to form an urban microgrid, effectively alleviating the energy consumption pressure in the urban area..
The charging service industry is a representative of new infrastructure and is constantly developing with the popularization of new energy vehicles, forming a market size of about trillions of yuan. However, it still faces problems such as slow charging and uneven layout. During the 2024 Spring Festival travel rush, many electric vehicle owners encountered rare rainy and snowy weather on their way back to their hometowns. Electric vehicles were found lying on highways, exposing some shortcomings in the charging service industry..
Facing the core pain point of slow charging in electric vehicle energy replenishment, overcharging is becoming a new direction for industry development. Many regions have introduced policies to accelerate the construction of overcharging stations, and enterprises have also laid out this track. What are the innovations of the “Light Storage and Charging Inspection” demonstration station in Jin’an Lake Park, as the first overcharging demonstration station in our city under the 14th Five Year Plan, and what changes will it bring to the industry? The reporter conducted an investigation into this..
Remove the charging gun from the power storage cabinet, insert it into the charging port, scan the code to download the app and pay the electricity fee. After that, the vehicle starts charging, and the charging progress is synchronously displayed on the battery indicator on the phone..
This is a scene that the reporter saw at the “Light Storage Charging Inspection” overcharging demonstration station in Jin’an Lake Park. The taxi driver, Mr. Chen, who is currently charging, is on shift handover and needs to charge the vehicle to its full capacity before handing it over to the night shift driver. He said, “Charging here is fast. It costs 1 yuan per kilowatt hour during the day and less than 50 cents at night. Charging at night is more cost-effective.”.
Fast charging is the biggest advantage of overcharging stations compared to regular charging stations. The energy storage battery system capacity of the overcharged station in Jin’an Lake Park reaches 800kW, and the better the performance of the electric vehicle battery, the faster it charges..
At the same time, the introduction of photovoltaic power generation and energy storage functions is of great significance for the green transformation of charging pile facilities, improvement of energy structure, peak shaving and valley filling to maintain the safety and stability of the power grid. During the day, photovoltaic power generation is utilized and converted into electrical energy storage; At night, during peak energy consumption on the power grid, release stored electrical energy. Charging stations are like power generation nodes, forming a city microgrid. Meanwhile, utilizing the difference in peak and valley electricity prices can also reduce electricity costs..
“The ‘Light Storage Charging Inspection’ charging station has solved the problems of increasing the capacity of charging facilities and battery safety in the rapid development of new energy vehicles under the dual carbon background. Wang Weirong, Deputy Manager of Zuohai New Energy Information Technology Department, said that while charging, car owners can also choose battery testing services to” check “the performance of the battery and improve charging safety.”..
As of now, several overcharging stations have been put into operation in the urban area of Fuzhou, including Mawei Dongjiangbin and Jin’an Yuefeng, but the demand and supply for charging still do not match. According to data from the China Electric Vehicle Charging Infrastructure Promotion Alliance, 99.3% of public charging station users prefer fast charging. However, the proportion of fast charging from public charging stations is only 40%..
Taxi driver Li Zhen stated that charging speed, location, and electricity price are the three major factors that determine the driver’s choice. A slow charge of an electric vehicle takes 10 hours to fully charge, a fast charge takes more than 1 hour, and a super fast charge takes half an hour. “Taxis need to be charged every day, and drivers prefer fast charging. In order to protect the battery, slow charging is only performed once a month. According to his observation, some slow charging stations are left unattended all year round, becoming” zombie piles “. Although they seem to have many branches, the actual comprehensive utilization rate is not high.”. Talking about Green Building Leading the Development Trend | The Provincial Medical Building Implementation Assembly Decoration Exhibition and Observation Conference was held in Linping. As an important way to promote the industrialization, greening, and intelligence of the construction industry, prefabricated buildings are an important trend for the future development of the construction industry. On April 16th, a demonstration and observation meeting on the implementation of prefabricated decoration in medical buildings throughout the province was held in Linping. Xu Feng, a member of the Party Group and Deputy Director of the Provincial Department of Construction, Lin Jie, a member of the Party Committee and Deputy Director of the Provincial Health Commission, Yang Tieding, a member of the Party Group and Deputy Director of the Municipal Housing and Urban Rural Development Bureau, a member of the Standing Committee of the Linping District Committee and Party Group of the District Government, and Song Yu, Secretary of the Party Working Committee of Linping New City, attended the event. Relevant leaders from housing and construction departments, health departments, industry associations, enterprises, and other cities throughout the province also attended..
At the meeting, Song Yu warmly welcomed colleagues in the construction and medical fields from all over the province, and introduced the situation of prefabricated decoration work in Linping District in three aspects: strengthening mechanism innovation and policy guidance, emphasizing technological innovation and enterprise cultivation, and focusing on pilot construction and demonstration drive. Subsequently, the leaders of the Municipal Construction Commission, Municipal Health Commission and other units, as well as two enterprises, Zhejiang Architectural Design and Research Institute Co., Ltd. and Han’erm Building Technology Co., Ltd., summarized the characteristics, development status, and future prospects of prefabricated decoration technology in the field of medical architecture and their own project construction, providing positive ideas and methods for all participants..
Xu Feng fully recognizes the achievements of the pilot work of prefabricated decoration in our province since last year, and puts forward the following requirements for promoting prefabricated decoration work:.
We must continuously improve our political stance, fully recognize the important role of prefabricated decoration in cultivating new industries, improving social benefits, enhancing people’s sense of gain, and driving domestic demand. We must bravely shoulder our mission and tasks, strengthen our confidence in development, and spare no effort to promote this work, seizing the opportunity for development..
We must adhere to innovative ideas and establish the concept of leading the coordinated development of the entire industry chain with the long-term positioning of the construction industry chain; We must adhere to mode innovation, achieve system integration and collaboration between upper and lower levels, and improve quality, reduce costs, and enhance competitiveness through innovative measures such as optimizing design and construction, reducing material loss, and reducing actual measured quantities; We must adhere to policy innovation, actively explore policy provisions suitable for the development of prefabricated decoration in terms of bidding models, engineering pricing basis, etc., explore incentive measures that meet the requirements of prefabricated decoration in terms of financial and talent guarantee, and give preferential treatment to the implementation of prefabricated decoration projects in aspects such as evaluation and demonstration creation, further accelerating the promotion and development of prefabricated decoration..
We need to further increase communication and strengthen collaboration, and carry out mechanisms for communication, investigation, and liaison in more dimensions; In the implementation process, it is necessary to strengthen the supervision of engineering quality and safety, strictly control the design accuracy and machining accuracy of parts, assembly operation procedures, and material quality management, create a number of landmark projects in the medical field of prefabricated decoration, jointly promote the construction of a high-quality medical and health service environment in our province, provide a “Zhejiang plan” for the construction of high-quality medical buildings nationwide, and create a “Zhejiang window”..
After the meeting, the attendees also visited the fever outpatient department expansion project of the First People’s Hospital in Linping District, Hangzhou City, the Dingqiao Campus of Hangzhou Traditional Chinese Medicine Hospital, and the model area of medical care and health in the Han’erm Industrial Base. Everyone expressed that through this observation meeting, they learned the experience and practices of prefabricated decoration, and fully recognized the positive significance of promoting the development of prefabricated buildings. In the future construction process, we should deeply practice the concept of green development, improve the level of refined management and on-site safety and civilized construction, jointly promote the development of prefabricated buildings, and strive to create high-quality projects, benchmark projects, and satisfactory projects..
In recent years, Linping District has focused on optimizing the construction industry, making efforts in the transformation of construction industrialization, digitization, and greening, strengthening mechanism innovation and policy guidance, attaching importance to technological innovation and enterprise cultivation, focusing on pilot construction and demonstration drive, and continuously promoting the research and application of new technologies such as intelligent construction and prefabricated decoration. Next, our district will take this conference as a new starting point, seize the opportunity of pilot construction of prefabricated decoration, further improve the system and mechanism, optimize element guarantee, continue to promote technological innovation, and contribute greater efforts to the high-quality development of prefabricated decoration and construction industry in the medical construction field in the province. Promote prefabricated decoration! The exhibition and observation meeting on the implementation of prefabricated decoration in medical buildings throughout the province was held in Hangzhou on April 16th. The purpose of this observation meeting is to explore and exchange good experiences and practices in the implementation of prefabricated decoration in the medical construction field in various regions, actively promote the pilot work of prefabricated decoration in Hangzhou, promote the adjustment and transformation of the construction industry structure in our city, and promote the high-quality development of the construction industry. The meeting consists of two parts: conference communication and on-site observation. The on-site observation will be conducted in a mode of “offline observation+online live streaming”..
More than 200 people participated, including Xu Feng, a member of the Party Group and Deputy Director of the Provincial Department of Construction, Lin Jie, a member of the Party Committee and Deputy Director of the Provincial Health Commission, Yang Tieding, a member of the Party Group and Deputy Director of the Municipal Health Commission, Sun Jundong, a member of the Party Committee and Deputy Director of the Municipal Health Commission, and relevant leaders from housing and construction departments, health departments, provincial hospitals, and enterprises across the province. Approximately 10000 personnel from construction, design, construction, and decoration enterprises in the city participated through online live streaming..
Song Yu, a member of the Standing Committee of the Linping District Committee and the Party Group of the District Government, attended the meeting and delivered a speech..
Yang Tieding, a member of the Party Group and Deputy Director of the Municipal Construction Commission, introduced the main practices of promoting the pilot work of prefabricated decoration in Hangzhou..
Since the pilot work of prefabricated decoration was launched in 2023, Hangzhou has taken the pilot cities as an opportunity to actively implement the various deployments of the Provincial Department of Construction to promote the pilot work of prefabricated decoration, closely adhere to the pilot goals, and orderly promote the pilot work of prefabricated decoration through policy guarantees, project pilots, technical strengthening and other measures. At present, the city has established a reserve project library for prefabricated decoration pilot projects, including 17 projects, covering commercial residential buildings, hospitals, schools and other formats, with a total decoration area of over 300000 square meters..
Incorporate into the green building regulations and clarify the work direction; Develop a pilot plan based on the actual situation in Hangzhou; Collaboration between urban and rural areas to promote the implementation of the source..
Strengthen organizational coordination, optimize the bidding mechanism, and carry out incentives at multiple levels..
We have established a reserve project library for prefabricated decoration pilot projects, coordinated industry associations, fully leveraged the role of industry associations, and explored the establishment of a list of prefabricated decoration industry chains in Hangzhou..
Improve the supervision and management system, strengthen quality prevention and control measures, promote applicable technologies, and compile standard atlases..
Officials from Hangzhou Health Development Center, Linping District Health Bureau and other units, as well as Zhejiang Architectural Design and Research Institute Co., Ltd. and Han’erm Building Technology Co., Ltd., exchanged opinions and shared case studies on the implementation of prefabricated decoration and project construction in the medical construction field, providing ideas and methods for the next step of promoting the pilot work of prefabricated decoration..
Xu Feng, a member of the Party Group and Deputy Director of the Provincial Department of Construction, fully affirmed the achievements of the pilot work of prefabricated decoration in our province, and emphasized the need to accurately grasp the situation and strengthen development confidence. Continuously improving political stance, fully recognizing the important role of prefabricated decoration in cultivating new industries, improving social benefits, enhancing people’s sense of gain, and driving domestic demand, we will spare no effort to promote this work and seize the opportunity for development. We must adhere to systematic thinking, drive development through innovation, achieve innovative concepts, models, and policies, and further accelerate the promotion and development of prefabricated decoration. We need to strengthen departmental collaboration, form work synergy, and carry out more dimensional communication, inspection, and liaison mechanisms. Strengthen engineering quality and safety supervision, create a number of iconic projects for prefabricated decoration in the medical field, provide a “Zhejiang plan” for the construction of high-quality medical buildings nationwide, and create a “Zhejiang window”..
At this observation meeting, attendees visited the fever outpatient department renovation and expansion project (under construction) of the First People’s Hospital in Linping District, Hangzhou City, ward 5 of Dingqiao District of Hangzhou Traditional Chinese Medicine Hospital (completed), and a model exhibition in the field of medical care and health at the Han’erm Industrial Base. They gained a detailed understanding of the effectiveness and excellent practices of modular decoration in the field of medical architecture..
The renovation and expansion project of the fever clinic of the First People’s Hospital in Linping District, Hangzhou City includes steel structure building and prefabricated decoration engineering. The prefabricated decoration project adopts a detachable light steel frame interior partition wall, integrating technologies and products such as suspended ceiling and pipeline separation, efficiently integrating systems and products such as pipelines and medical equipment, achieving integration of wall and pipeline decoration, leveling with the wall, no dust accumulation, and easy cleaning. Lean Construction | Prefabricated All Aluminum Frame Helicopter Apron Construction Technology With the expansion of urban scale and the increase of urban road traffic pressure, helicopters will be the main tool for future urban air traffic, and rooftop aprons will be an important infrastructure for future urban transportation. The planning and establishment of an internal parking apron in the city has significant potential in the medical field. Aviation medical rescue is the guarantee of life rescue in emergency situations. As an important part of the life passage system, the use of the apron requires absolute reliability, including the reliability of the apron itself, the reliability of the clearance, and the reliability of on-site control..
At present, most rooftop aprons in China are made of concrete and steel structures, which will crack, peel, and rust after long-term use. The maintenance cycle is short, the maintenance cost is high, and they cannot be put into use during the maintenance period. And the structural weight is large, requiring a large reinforcement ratio and cross-sectional size of the concrete main structure, poor seismic reduction effect, and cumbersome on-site construction, which takes up the use time of the tower crane..
Therefore, it is necessary to adopt a maintenance free apron installation construction technology. This technology uses aluminum alloy material, which not only has high strength, high plasticity, light weight, and is easy to process, but also has excellent conductivity, thermal conductivity, and corrosion resistance. The aluminum alloy profile apron can be installed in an assembly style to achieve quick assembly and improve work efficiency. No maintenance required, ensuring the long-term use of the apron and realizing the value of medical rescue services..
The construction project of the East Campus of Qingdao Eighth People’s Hospital, undertaken by China Youth Construction Safety Group, adopts a maintenance free apron installation construction technology. This technology uses aluminum alloy materials, which not only have high strength, high plasticity, light weight, and easy processing, but also have excellent conductivity, thermal conductivity, and corrosion resistance. The aluminum alloy profile apron can be installed in an assembly style to achieve quick assembly and improve work efficiency. No maintenance required, ensuring the long-term use of the apron and realizing the value of medical rescue services..
This apron is the first large tertiary hospital in Qingdao to adopt an all aluminum frame structure, forming a regular octagonal shape with a width of 20 meters on the opposite side. The building area is 331 square meters, and the panel elevation is 77.58 meters. The aircraft models that can take off and land on this apron are helicopter models with a total length of no more than 20 meters and a weight of less than 8 tons, which meet the needs of domestic civilian rescue helicopter models for takeoff and landing, and can be used in aviation medical rescue, emergency firefighting, rescue and disaster relief, and other purposes..
This technology mainly adopts a double layered and multi strip spatial deck flat structure with secondary force distribution. The structure is assembled in a building block style, and a mixed calculation model and method for the distributed bearing coefficient of the spatial deck structure is used to evenly distribute the concentrated force on the flat surface, optimize the mechanical performance of the concentrated force, and solve the key technology and lightweight and simple design problems of the balanced and dispersed structure of the apron. And while ensuring mechanical performance, it significantly reduces the weight of the elevated helicopter apron..
Based on the optimized structural parameters, a step-by-step loading simulation experiment was conducted on the on-site processed panel. The simulation results were compared with the experimental results to verify the effectiveness of the panel calculation model. Then, based on the CAD drawings, the machining dimensions of each component of the all aluminum frame structure are determined. All components are customized and manufactured in the factory according to the machining dimensions, and assembled on site. The entire helicopter apron panel structure system is formed by connecting and assembling with embedded locking buckles..
Align and fix the first deck onto the edge beam with installation positioning holes, and evenly inject silicone into the splicing buckle groove on the side of the panel to ensure the compactness and integrity of the panel connection. Insert the second deck at an angle of about 60 degrees into the groove of the first panel, align it with the positioning line, and then lay it flat. Special clamps are used to fix the installation deck and frame beams..
Parallel to the direction of the lower deck, stacked on top of the lower deck. Apply silicone evenly to the upper buckle groove of the first lower deck, and apply silicone to the bottom of the upper deck buckle in an interval and staggered manner. Insert the lower buckle of the upper deck into the upper buckle groove of the lower deck at an angle of about 15 degrees; Apply silicone evenly to the buckle grooves on the side of the first upper deck and the upper part of the lower deck. Apply silicone to the bottom of the buckle on the second deck in a staggered manner and embed it into the buckle grooves on the lower deck and upper deck. The progress bar is about to fill up! The initial appearance of the five story prefabricated interchange in Xinjiang is a series of “curved roads” rotating in the air, forming a “circular sky road”. Elevated roads interweave and pass through the air, extending in all directions… Currently, the prototype of the five story interchange in the Anning Canal of Urumqi East Entrance Elevated Road has emerged..
On April 16th, the reporter saw at the construction site of the Anning Canal fifth floor interchange of the Dongjin Elevated Road project that the overpass has five floors, with eight ramps in four directions of east, west, south, and north basically formed..
Construction site of Anning Canal fifth floor interchange for Dongjin Elevated Road Project (photographed on April 16th)..
On the west side, it can be connected to the elevated bridge of the Urumqi Airport renovation and expansion project terminal, and on the east side, it can be connected to the Hetan Expressway. The north and south sides can be connected to Provincial Highway 102..
Looking up from the overpass, layers of overpasses crisscross and fly over in the air, layer by layer. Wen Chengjun, Production Manager of the East Access Elevated Road Project of Shanghai Municipal Government, said, “From above, it is clear to see that layers of elevated roads form a huge circular shape in the air, which is very spectacular.”.
As the first prefabricated bridge in Xinjiang, the Dongjin Airport Elevated Road Project is connected to the Urumqi Airport Reconstruction and Expansion Project Terminal Elevated Bridge to the west. It passes through Anningqu Interchange, Beijing Road, Changchun Road, Huzhou Road, Dongzhan Road, and Huanyuan Road to the east, crosses the Hetan Expressway, and achieves regional road interchange at the Hetan Expressway and Anningqu Interchange. The entire line is equipped with two interchanges, Anning Canal and Hetan Expressway. Among them, Anning Canal’s five story interchange is the largest and most complex key node in construction. It is expected to be completed within this year, making it more convenient to enter and exit Urumqi Diwobao International Airport, thus achieving multi-point connection and fast entry and exit transportation functions..
On April 16th, the site of the Anningqu Interchange project for the Dongjin Elevated Road Project..
Wen Chengjun said that this is a turbine type fully interchange, with the highest level 22.5 meters above the ground. Due to the narrow construction site, limited space, difficult traffic organization, and high safety protection requirements, this overpass adopts prefabricated assembly technology, which means that the bridge components such as columns, cap beams, and small box beams produced by the base are transported to the site and then lifted, with a maximum splicing height of 22.5 meters. At the same time, the prefabricated assembly construction method of ultra-high performance concrete (UHPC) connection was also adopted..
At present, workers are erecting the last cast-in-place box girder frame of the fifth floor interchange of Anning Canal, which is also the last cast-in-place box girder. After the on-site pouring is completed, the entire bridge body is connected and connected, and then the construction of related ancillary facilities such as the bridge deck, street lights, and signage is carried out..
On April 16th, at the site of the Anning Canal Interchange project of the Dongjin Elevated Road Project, workers were carrying out steel reinforcement binding operations for the anti-collision wall..
It is reported that after the completion of the Dongjin Airport Elevated Road Project, it will mainly serve as the main distribution channel for the northeast and north urban areas of Urumqi, as well as the southeast direction of the city and the east entrance of the Urumqi Airport renovation and expansion project. This will further enhance the rapid transfer function of transportation and truly achieve a backbone transportation network of four connections and eight connections..
After the completion of the Dongjinchang Elevated Anning Canal 5-story Interchange, it will also become the fourth 5-story interchange in Urumqi. Previously, there were three 5-story interchanges, including Hetan Road, Liudaowan, and Kenan Elevated East Extension Phase II..
On April 16th, at the site of the Anningqu Interchange project of the Dongjin Elevated Road Project, staff were recording the pile number..
From the earliest wooden West Bridge to the first train south station overpass with interchange function, and then to the five story overpass that embodies modern design concepts and showcases urban style… Today, there are more than 60 overpasses distributed throughout the city, together forming and connecting the urban transportation artery, allowing Urumqi’s transportation to move from a flat to a three-dimensional direction, shaping a new urban pattern..
On April 16th, at the site of the Anning Canal Interchange project of the Dongjin Elevated Road Project, workers were carrying out steel bar cutting construction operations..