摘要
连续刚构桥在合龙顶推时,合拢段实测的相对变形值和模型理论计算值往往相差较大,因为模型计算大多都忽略桩土效应而简化的把墩底看作固结.同时,目前大部分文献都是采用单一的桩土效应模型分析其对桥梁结构受力的影响,而对不同桩土效应分析模型的区别及模拟精确度都少有研究.因此,本文通过探讨六种不同桩土效应计算模型的优缺点,对比分析合拢段的相对位移来确定刚构桥高墩分析的最优计算模型.
The relative deformation values measured in the stage of closing and pushing of continuous rigid frame bridge are often different from the theoretical calculated values via models,because most models ignore the pile-soil effect and simplified consider the bottom of the pier as consolidation.At the same time,most literatures use single pile-soil effect model to analyze the stress influence on bridge structures.However,there are few researches on the difference and simulation accuracy of the different pile-soil effect models.Therefore,the advantages and disadvantages of six different pile-soil effect calculation models are discussed,and the high pier optimal calculation model of rigid frame bridge is determined by comparing and analyzing the relative displacement of the top closure.
作者
李艺林
黄叙钦
邬晓光
吴乾龙
LI Yi-lin;HUANG Xu-qin;WU Xiao-guang;WU Qian-long(Key Laboratory for Bridge and Tunnel of Shaanxi Province, Chang＇an University ,Xi＇ an 710064,China)
出处
《内蒙古大学学报（自然科学版）》
CAS
北大核心
2018年第3期329-336,共8页
Journal of Inner Mongolia University：Natural Science Edition
基金
陕西省交通运输厅科技资助项目(13-25k)
关键词
连续刚构桥
桩土效应
模拟精度
高墩
计算模型
continuous rigid frame bridge
pile-soil effect
simulation accuracy
high pier
calculation model
