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杭州某连续梁桥采用采用双箱四室断面,两箱之间不设横隔梁,仅翼板连接;通过建立空间模型,分析这种弱连接方式的受力特点,表明弱连接可以极大地增加桥梁的刚度,减少挠度。成桥试验也验证了这一结论。
A continuous girder bridge in Hangzhou adopts a double-box four-compartment section with no cross-beam between the two boxes and only the wing plate connection. By establishing a space model, the force characteristics of this weak connection mode are analyzed to show that the weak connection can greatly Increase the rigidity of the bridge to reduce the deflection. Bridge test also verified this conclusion.