台风-波浪耦合作用下钢管桩施工平台力学行为分析

Mechanical Behavior Analysis of Steel Pipe Pile Construction Platform Under the Coupling Action of the Typhon and Wave Loads

针对阳江核电跨明渠大桥施工钢栈桥和支架平台在台风和波浪力等荷载作用下的安全问题,利用通用有限元分析软件ANSYS,建立栈桥和平台的有限元模型,对栈桥和平台结构进行力学行为计算.结果表明:三种荷载组合作用下平台板稳定性和钢管桩的强度都满足要求,在极端风荷载和波浪力共同作用下,平台的变形也不是太大,但灌注桩两侧钢管桩支撑较少,稳定性较差.

The security issues of construction steel trestle and scaffold platforms for the cross channel bridge of Yangjiang nuclear power under the coupling action of the typhon and wave loads are researched. The finite el- ement model about construction steel trestle and scaffold platforms is built with ANSYS software and the me- chanical behavior is calculated. The results show that the stability of the platform and the strength of the steel pipe pile meet the requirements under three kinds of loading combinations. Under the combined effect of the extreme wind and wave forces, the deformation of the platform is not too much, but the support of both sides of the steel pipe pile is not enough and the stability is worse.