不等高双肢薄壁墩对大跨连续刚构静力影响  

Analysis of the Static Influence of Large-span Continuous Rigid Frame Bridge Considering Unequal Height of Double Thin-wall Piers

作　　者：李民伟[1] 宁晓骏[1] 

机构地区：[1]昆明理工大学建筑工程学院,昆明650500

出　　处：《武汉理工大学学报（交通科学与工程版）》2012年第6期1279-1282,共4页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：国家自然科学基金项目(批准号:51068012);云南省自然科学基金项目(批准号:2009CD034)资助

摘　　要：为分析不等高桥墩对大跨连续刚构桥梁的静力影响,以某在建大跨连续刚构桥为研究对象,分别建立墩高比为0.5～1.0的连续刚构桥计算模型,计算分析不同墩高比对大跨连续刚构桥的静力影响.计算结果表明,不等高桥墩对大跨连续刚构桥上部受力影响较小,而对桥墩本身的受力影响较大.通过采取必要的措施,大跨连续刚构桥梁的桥墩可采用不等高桥墩.In order to analyze the static influence of large-span continuous rigid frame bridge if the height of its double thin-wall piers were not equal, one bridge in construction is calculated. Models are built considering the ratio of its piers from 0.5 to 1.0. The static influence can be gotten by calculat- ing all the models. The conclusions are as below., if double thin-wall piers of bridge were not equal, the superstructure of bridge is affected insignificant, the internal force of piers was affected greatly; unequal height of piers can be used for large-span continuous rigid frame bridge by taking necessary measures.

关 键 词：墩高比 静力分析 连续刚构 双肢薄壁墩 

分 类 号：U448.2[建筑科学—桥梁与隧道工程]