The Comparative Study Of Corrugated Steel Web PC Continuous Rigid Frame And Rigid Frame 研究生姓名: 董 晓

As science and technology and transport to the development of large-span prestressed concrete continuous rigid frame bridge has been the rapid rise in recent years. However, a large number of calculations show that, using traditional concrete box girder web of the continuous girder bridge and a continuous rigid frame bridge, its structure dead load resulting from internal forces to control the cross-section generally accounted for more than 80% of the total internal forces, and the larger span bridge would become more broad, then the higher the large span of such bridge may reach nearly 90%. In addition, traditional concrete box girder webs inclined crack problem has been more and more prominent, direct threat to the continuous rigid frame bridge normal use. In the large-span continuous rigid frame bridge used in vivo and in trying to mix with the rope in order to resolve or alleviate the current continuous rigid frame bridge the problems. In order to better address and improve these problems, we have adopted to replace the corrugated steel webs thick reinforced concrete webs, that is, Itabashi corrugated steel belly.In this paper, a new beach in Chongqing Qijiang bridge engineering background, with corrugated steel webs to carry out large-span continuous rigid frame bridge research. Corrugated steel belly full summary calculation based on the theory Itabashi, Itabashi-bellied waveform steel design analysis, design results obtained meet the relevant specifications; through the body prestressed bridge, and in vivo mixed with the rope bridge and the corrugated steel webs Bridge finite element analysis, mechanical properties of three kinds of bridge, construction technology and economy were compared in three areas of study. At the same time, through the corrugated steel belly Itabashi the implementation of this project, a simple introduction to the Japanese than the popular Rap-con/RW (Rapid Construction of Ripple Web) construction technology.In this paper, relevant research results not only direct support and guidance of the corrugated steel belly Itabashi program design and construction, but also for the corrugated steel webs technology in China Bridges provide a theoretical reference and practical applications.