不平衡称重试验及配重技术在桥梁水平转体施工中的应用

桥梁是一种跨越障碍的构筑物。遇到既有铁路施工,多采用转体桥跨越。可旋转的支座、滑道、撑脚组成旋转体系,牵引转盘上预埋的钢绞线达到转体就位的目的。该文通过称重试验可以得知梁体的重心位置,通过配重可以将旋转体重心位置调整至理想安全稳定的位置,该方法让转体过程更加安全可靠。

Application of Unbalanced Weighing Test and Counterweight Technology in the Horizontal Swivel Construction of Bridge

Bridge is a kind of structure that can cross over obstacles.In case of existing railway construction,the swivel bridge is often used for crossing.The rotatable supports,slideways and supporting feet form a rotation system,and the embedded steel strands on the traction turntable achieve the purpose of rotating in place.In this paper,the center of gravity of the beam body can be known through the weighing test,and the center of gravity of rotating body can be adjusted to an ideal,safe and stable position through the counterweight,so that the process of swivel is more safe and reliable.