JCCAD模块在超高层筏板基础计算中的应用

时于一座292米的超高层建筑,持力层为圃砾层,(地基承栽力f(ak)=650kPa,压缩模量E0=37),采用平板式筏基,这是一个大胆的尝试.虽说不一定是首创,但在技术上,也是一种挑战.另一方面,相对于桩基,筏基既可以缩短工期,也可以节省造价,在施工和经济两个方面都是首选.为了准确的计算基础的沉降、内力及配筋,本工程采用PKPM软件的JCCAD模块,准确输入地质状况,并建立多个模型进行比对.在基床反力系数的选取上,亦采纳多方面的意见,通过程序自动生成、当地经验值反算、安全系数调整等多次校核,得出较符合实际的沉降值.

The JCCAD module in high-rise raft foundation calculation

for a 292 metre tall building,bearing layers of gravel layer(the foundation bearing capacity of compression modulus of fak= 650kPa,E0=37) ,using the slab raft foundation,it is a bold attempt.Although it is not necessarily the first,but technically,but also a challenge.On the other hand,relative to the pile,raft can shorten the construction period,but also can save the cost,in construction and economy two respects are preferred.In order to accurately calculate foundation settlement,internal force and reinfor...