摘要
桥梁设计中选择桥型时,由于连续梁桥的受力合理,支点负弯矩具备卸载作用,能有效减小桥跨跨中正弯矩,使得全桥弯矩分布更合理,因此被广泛应用于道路桥梁建设工程中。箱梁顶板和底板的宽大面积有利于配筋设计,时期抵抗正负弯矩良好,且抗扭刚度较大,同时收缩变形小且动力性能优良。一般预应力混凝土连续箱梁桥可采用支架现浇的方式进行施工,本文在具体的工程实例上对预应力混凝土连续箱梁桥支架现浇施工进行了详细的质量控制分析,借助计算机软件进行仿真计算,探讨施工控制理论计算的可行性。
Choose the bridge, the bridge design due to the stress of the continuous girder bridge is reasonable, the fulcrum negative bending moment have the unloading effect, can effectively reduce the bridge span across is bending moment, make the whole bridge bending moment distribution more reasonable, so they are widely used in road and bridge construction projects. Box girder roof and floor of wide area reinforcement design and resistance during the period of the positive and negative bending moment is good, and torsional stiffness is bigger, at the same time, small shrinkage deformation and good dynamic performance. General can adopt support cast-in-place prestressed concrete continuous box girder bridge construction, with the method of this article on the specific engineering example to support cast-in- place prestressed concrete continuous box girder bridge construction has carried on the detailed analysis of the quality control, with the aid of computer software for the simulation calculation, discusses the feasibility of the construction control calculation.
出处
《山东农业工程学院学报》
2017年第9期34-38,共5页
The Journal of Shandong Agriculture and Engineering University
关键词
支架现浇
预应力混凝土
连续箱梁桥
施工控制
the brackets are now watered
prestressed concrete
continuous box girder bridge
construction control
