新疆地区简支梁桥变连续梁桥施工技术探讨

Construction Technology of Simply Supported Beam Bridge Turning into Continuous Beam Bridge in Xinjiang

简支梁桥变连续梁桥结合了简支梁和连续梁的优点,采用的施工技术为:先设置临时支座,架设预制梁,接着在邻跨接缝处浇筑混凝土,然后张拉负弯矩区钢筋,最后拆除临时支座。新疆地区还应考虑冬季施工的因素。

Simply supported beam bridge turning into continuous beam bridge combines the advantages ofsimply supported beam bridge and continuous beam bridge. The technology of its construction is as follows. First- ly, set the temporary supports. Secondly, put precast beams on the temporary supports. Then, pour concrete in the seams of the adjacent beams and stretch prestressed reinforcement in hogging moment area. Lastly, dismantle the temporary supports. Moreover, the winter construction in Xinjiang should be considered.