湖北出版文化城工程(二):裙楼预应力筏基设计与分析

Hubei Publishing and Culture City Engineering.Ⅱ:Design and Analysis on the Prestressed Raft Foundation of Podium

在 9m× 1 8m柱网的预应力筏基中 ,为解决 1 8m跨方向的基础构件设计问题 ,采用了带端斜杆的空腹桁架 ,并在桁架中采用了开口向下的大转角预应力折线束以平衡向上的地基反力。对地基反力、沉降以及基础桁架应力、变形进行了实测 ,并对实测结果进行了分析 。

In the prestressed raft foundation with 9m×18m column grid,open web trusses with diagonal members in the end are adopted in the design of the 18m span foundation beams,and folded prestressed strands are set in the trusses to balance the subgrade reactions.The analysis of the test of subgrade reacions,settlement,stresses and strains in the foundation trusses is presented,and the design of prestressed foundation beams is also introduced.