整体式桥台桥梁设计中的荷载组合研究  

Research on Load Combinations of Integral Abutment Bridges Design

作　　者：彭大文[1] 洪锦祥 

机构地区：[1]上海应用技术学院土木建筑与安全工程学院,上海200235 [2]福建省交通规划设计院,福建福州350004

出　　处：《湘潭大学自然科学学报》2009年第3期112-116,共5页Natural Science Journal of Xiangtan University

基　　金：上海市科委重点资助项目(08230511400);福建省科技厅重点资助项目(2006H0021)

摘　　要：按照整体式桥台桥梁计算桥台桩基础的等代桩长和台后土压力合力的简化计算方法,以福建省上坂大桥为工程背景,分析了荷载组合对等代桩长和土压力合力的影响.研究表明,温度和二期恒载对等代桩长和台后土压力合力会产生较大影响;汽车荷载的布置形式对台后土压力合力存在较大影响.该类桥梁设计时,可以简化为12种荷载组合工况计算桩基础的等代桩长和台后土压力合力.Based on the simplified analysis method of equal pier length and soil pressure force after the abutment of integral abutment bridges, take Shangban Bridge in Fujian province for example, the influence of load combination on equal pier length and soil pressure force is presented. The results indicates： the temperature loads and secondary dead loads could have a strong influence on equal pier length and soil pressure force ; the arrangement of vehicle loads could have a strong influence on soil pressure force. 12 load combinations for equal pier length and soil pressure force after the abutment could solve the design problems.

关 键 词：桥梁工程 整体式桥台桥梁 等代桩长 土压力合力 荷载组合 

分 类 号：U441[建筑科学—桥梁与隧道工程]