On April 23, 2015, the fifth national building structure technology exchange conference was held in Hangzhou. Academicians of the Chinese Academy of Engineering Dong Shilin, Zhou Fulin, Gong Xiaonan and many industry experts attended the conference.

"National building structure technology exchange conference" is the most professional industry conference in the field of building structure in China. So far, it has been held for four consecutive sessions. At the previous conferences, many experts, engineers and leading entrepreneurs gathered together. The technical problems and engineering cases discussed have played a role of wind vane in the development process of the construction industry.

At the meeting, Dong Shilin, Zhou Fulin and Gong Xiaonan, academicians of the Chinese Academy of engineering, made wonderful speeches on topics related to building structures.

Whether it is the application and development, problems and prospects of modern long-span spatial structures in China, the development and application of aseismic, seismic isolation and seismic control technology of building structures, or the related issues of foundation, in fact, they are closely related to the continuous development and optimization of building structures.

As we all know, the construction dust, noise and construction waste seriously threaten our living environment. The extensive construction technology is difficult to ensure the construction quality, and the low labor cost advantage of the traditional construction industry has disappeared. The state also attaches great importance to the construction of ecological civilization. The 18th National Congress of the Communist Party of China formally incorporated the construction of ecological civilization into the national strategic system, forming a national strategic layout of "five in one". Building industrialization refers to the construction of houses by replacing the traditional and decentralized handicraft production mode with the large industrial production mode of modern production, transportation, installation and scientific management. Its purpose is to speed up construction, reduce labor intensity, reduce labor consumption and improve construction quality, so as to completely change the backward state of the construction industry. As a typical main structure in building structure, steel structure has many incomparable advantages. Steel structure housing plays a very important role in accelerating the process of housing industrialization, improving the safety performance and quality of housing, changing the mode of housing production, promoting green building and energy conservation and emission reduction. It is one of the mainstream technologies of building industrialization.