The cast steel structure building of Xiamen International Convention and exhibition center can be compared to building a house like making a car, producing steel structural components on the factory assembly line and assembling them into components.

” Lin Zhizhi: Doctor of engineering, professor level senior engineer, member of the National Expert Committee for seismic fortification review of transfinite high-rise buildings, member of the expert committee of the National Alliance for technological innovation of precast building industry, executive director of the building structure branch of China Architectural Society, member of the steel structure Expert Committee of China Building Metal Structure Association, Member of the editorial board of the national Chinese Core Journal Journal of civil engineering.

Steel structure cast buildings with the characteristics of ecological and environmental protection, excellent quality, affordable and comfortable are being vigorously promoted at an unprecedented speed, and have become the main melody of new buildings in the future.

6, Xiamen Fortune Center Building Green building (1% of construction waste) the construction waste generated by the traditional construction mode accounts for 30% – 50% of the urban waste, and the transportation of building materials and construction dust account for 10-30% of the urban air pollution, and the on-site water consumption is huge.

The steel structure buildings have good ductility and can absorb more seismic energy during earthquakes, so they are more earthquake resistant.

It can save heating energy in winter, save power consumption of air conditioning and other refrigeration equipment in summer, and greatly reduce air conditioning energy consumption.

On the whole, the development momentum of Xiamen Construction steel structure industry is very good, and the application projects are increasing year by year.

It is more environmentally friendly (less pollution from green buildings) dry construction is adopted for steel structure buildings, with extremely low noise pollution, dust pollution and water pollution.

Building complex II in north area of Xiamen Convention and Exhibition Greater occupancy rate (1 / 3 of the wall weight) the supporting wall of steel structure is a non load-bearing infilled wall, which can adopt light and high-strength wall, with thinner thickness, lighter weight and higher strength, and the indoor convenient area can be increased by 4% – 6%.

Compared with the traditional construction mode, the number of on-site operations can be reduced by about 60%.

Indoor light partition wall, the layout can be changed at will, and the decoration is more convenient.

Xiamen China Xinda building complex v 90% factory (1 / 10 of the on-site operations) the on-site work is done in the factory, outdoor work is done indoors, and construction simulation and on-site setting out are done by computer.

Standardized steel structure components, doors and windows, curtain walls and other “building parts” are modularized and assembled in the factory, and then these assembled semi-finished products are transported to the construction site for construction.

The modernization process of the construction industry has been accelerated year by year, with pilot promotion and demonstration leading.

It subverts the nearly 100 year history of the construction industry and changes the traditional construction mode.

The 339 meter high” Xiamen International Center “on Lujiang Road, the” twin towers “of Shimao Strait building, Xiamen wealth center building, Jianfa international building, Strait pearl, terminal T4 of Xiamen airport, Xinglin Bay operation center, Xiamen Lixin Plaza Xiamen central building in Haicang; Typical representatives of residential projects are, The highest all steel structure residential building in China – dijingyuan (five 62 storey 258m super high-rise buildings); in addition, there are still “one game and two pavilions (Asian Cup football field, swimming and diving hall, comprehensive gymnasium) and new Convention and Exhibition Center” in the eastern sports Convention and Exhibition new town , Yinglan international financial center, Xiamen high speed railway hub, Xiang’an International Airport terminal, etc.

Xiamen Shimao Strait building (double towers) VII.

If the fine decoration of buildings is considered simultaneously during the factory production, It can realize the on-site assembly of indoor and outdoor decoration and greatly reduce the total amount of garbage.

Moreover, the construction efficiency can be improved by 4-5 times.

In the future, when buildings are demolished, some products can be reused and materials can be recycled.

The traditional reinforced concrete buildings are prone to fragmentary damage and casualties in rare earthquakes.

Lin Zhizhi said in his special speech: “in recent years, high-rise building projects built with steel structure in Xiamen have continued to come out.

The materials used are mainly green 100% recyclable or degradable materials, which will not cause garbage siege and environmental pollution when buildings are demolished..

There is no zero waste on the site Scattered steel bars, concrete and insulation boards have only “parts” such as wall panels, stairs and overall kitchen and bathroom.

10 times construction safety compared with the traditional construction mode, high-tech production equipment is used for high-precision production of steel structure components in the factory, and mechanized hoisting is used on site to reduce manual operation error, ensure quality and ensure construction safety.

Fourth, the construction period is shorter (1 / 4 of the construction period) due to the fabrication of steel structure components in the factory and less on-site operation, the impact of weather on construction operation can be greatly reduced.

No.

3 、 More earthquake resistant (9-degree earthquake resistant) the number of earthquake casualties is closely related to the building structure.

I.

Workers can assemble these “parts” into buildings by mechanical equipment.

Recently, Dr.

The steel structure buildings are manufactured in the factory, and the construction waste generated at the construction site is less than 1% of the traditional construction mode.

Compared with the traditional construction mode, it can reduce the wall weight by 2 / 3.

The amount of sand, stone and cement is greatly reduced during construction.

The construction speed is faster, three layers a day, which saves 3 / 4 of the construction period compared with the traditional construction method.

The cast reinforced truss self-supporting floor slab can be constructed in multiple layers at the same time to realize three-dimensional cross operation.

85% ~ 95% of the parts and components are processed in the factory.

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VIII.

More energy-saving (air conditioning energy consumption is greatly reduced) the wall adopts light energy-saving standardized precast wallboard instead of masonry materials, which has better thermal insulation performance.

It can save about 50% energy than reinforced concrete buildings, warm in winter and cool in summer.