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..

Lifting Clutches

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.”..