水工平台上建筑物结构设计

Structural Design of Building on Maritime Platform

建设在水工平台上的建筑物单体,通常把水工平台顶面作为上部结构嵌固点,仅对上部结构进行建模计算。实际上,由于水工平台自重比上部结构各楼层的自重大很多,本身就是一个很大的地震质点,地震作用下水工平台自身变形会带动上部结构变形,进而影响上部结构的内力及配筋计算。水工平台桩底部嵌固点位置及水工平台厚度等因素对上部结构计算结果的影响也很大。本文以某码头前方作业楼结构设计为例,分析水工平台参与结构整体建模计算对上部结构自振周期、位移及内力的影响。希望通过本次研究可以给今后水工平台上建筑物的结构设计提供帮助。

To construct the individual building on a maritime platform,the top surface of the maritime platform is usually used as the embedded point of superstructure,and a model is built to calculate the superstructure only.In fact,the maritime platform is regarded as a large seismic particle because its self weight is much greater than that of each floor of the superstructure.Its deformation under earthquake may cause the deformation of the superstructure,and then affect the calculation of internal force and reinforcement of the superstructure.The location of the embedded point at the bottom of the pile and the thickness of the maritime platform also have great influence on the calculation results of the superstructure.Based on the structural design of a service building in front of a terminal,analysis and research are carried out for the impact on natural vibration period,displacement and internal force of superstructure when the maritime platform is counted in the modeling calculation of structure as a whole.It is expected to be able to provide guidance for the structural design of the building on the maritime platform in the future.