beam practice
3.Taking the partly prestressed 25 m box-beam in bidded section FG-Q2-1 of Fenguan Superhighway as an example and connecting with the construction practice,this paper introduces the key points of the post-tensioned construction technique for 25 m box-beam.
5.In view of the construction peculiarity of non-bracket construction trait of Y-shape pier upper plate beam in Goughexin Road Viaduct project, the author uses the Beam-rod finite element to calculate the whole construction period by steps, compares the result with engineering practice, and finally proves, the calculation can offer reference for the construction and design of non-bracket upper plate beam.
6.The results of a 24-story mega-frame structure with 4 spans were calculated by the universal finite element method of MIDAS, the different structural character values such as structural free vibration periods, structural displacements and structural moments were compared, the influence of connection form of main frame beam-column on behaviors of mega-frame structure were discussed, and smoe reasonable suggestions were put forward to guide engineering practice.
8.A new technique for hoisting beam above water is introduced through the Shanghai Park Road bridge project, which is mainly applied to the housing projects till now, is now developed in the above-water hoisting of large-scale prefabricated structure of bridge. Through its practice in the bridge construction, a new method is created here for the hoisting of large-scale prefabricated structure in the sea.
9.According to the high strength concrect practice in highway bridge construction including Baotuo Yellow River Bridge the Mosul Fifth Bridge, of Iraq, the Tianjin Viaduct and Xiamen Gaoji Bridge, the quality requirements of the materials, the concrect mixture design and the production and the curing as welll as the cambering of a prestressed T-beam after prestressing are investigated in detail in the paper.
