新旧规范对大跨连续刚构桥受力影响的差异分析  

Analysis of Force Influence Differences of the Long-span Continuous Rigid-frame Bridge between Updated and Old Criteria

作　　者：聂玉东[1] 单炜[2] 万利军[2] 

机构地区：[1]黑龙江省公路勘察设计院,哈尔滨150080 [2]东北林业大学,哈尔滨150040

出　　处：《森林工程》2007年第4期47-51,共5页Forest Engineering

摘　　要：基于同种结构分析软件,依托某大跨连续刚构桥上部结构,对比分析出采用"新、旧规范"后,该型桥梁上部结构应力变化差异产生的原因。认为新规范侧重于安全性的同时,更全面考虑了应力变化的影响因素。研究结论为工程设计人员更加灵活的运用新规范提供了切入点。Based on the strueture analysis software and relied on the superstrueture of a long-span eontinuous rigid-frame bridge, reasons of the stress ehanging differenees between updated and old eriteria on the superstrueture of the bridges were pointed out in this paper. It was coneluded that the updated criteria eonsidered more generally on the safety, at the same time the influenee factors of the stress ehanging was also eonsidered. These eonelusions provided a cut-in point for the designer to manage freely the updated criteria.

关 键 词：桥梁 连续刚构 受力分析 差异 规范 

分 类 号：U448.23[建筑科学—桥梁与隧道工程]