苏通大桥超高混凝土索塔温度梯度效应研究

Research on Thermal Gradient Effect of Su-Tong Bridge Tower

针对超高索塔施工控制中结构设计参数的变化能导致结构内力的变化和形状的改变,以及与时间有关的温度参数不易确定的问题,在分析了产生温度变形原因的基础上,结合苏通大桥的现场实际情况,介绍了如何在超高索塔的施工过程中消除温度效应影响的方法.

The variation of the structural design parameters can lead to the change of the internal forces and the alteration of the shape in the control of the high tower construction. Also, the parameters relevant to the time are not easy to be determined. Through analyzing the reasons of bringing about temperature displacement, how to eliminate the thermal gradient effect of the tower in construction is given.