北京建筑大学学报2024，Vol.40Issue(4)：112-122,11.DOI:10.19740/j.2096-9872.2024.04.14
修正增量法对PBA地铁车站计算模型分析及研究
Analysis and Research on the Calculation Model of PBA Subway Station by Modified Incremental Method
摘要
Abstract
The construction process of PBA(Pile-hole method)subway station is sorted out,and the traditional incremental calculation model is analyzed theoretically.The idea of calculating the internal force of each construction stage cannot fully reflect the nonlinear characteristics of the actual station structure system when the traditional incremental method(load structure model)is linearly superimposed.Therefore,Drawing on the concept of stress history of the stratum structure model,a modified incremental method calculation model is proposed to reflect the internal force adjustment and redistribution of the station structure system through internal force inheritance and re-iterative balance.Through the quantitative calculation and comparative analysis of engineering cases,the research results show that the modified incremental method calculation model can solve the problem of traditional incremental method calculation model.It is suggested that the modified incremental method model and the traditional incremental method model should be used simultaneously for structural design calculation in the subway station project of the hole pile method,and the final reasonable design index should be determined by comprehensively comparing the results.关键词
洞桩法/地铁车站/荷载结构模型/增量法/修正增量法Key words
pile-hole method/subway station/load structure model/incremental method/modified incremental method分类
建筑与水利引用本文复制引用
李哲,刘飞,靳天睿,李月阳,陈滔..修正增量法对PBA地铁车站计算模型分析及研究[J].北京建筑大学学报,2024,40(4):112-122,11.基金项目
北京市教委科技项目(KM201810016005). （KM201810016005）
