Abstract: In?the?engineering?case?of?Weihe?Bridge?in?Henan,?series?of?three-dimensional?models?have?been?generated?,which?adopt?the?finite?element?analysis.?From?the?results,?the?influences?of?parameters?to?girder?transverse?stress?have?been?studied.?The?transverse?stress?under?the?dead?load?and?the?vehicle?load?is?calculated?by?the?finite?element?soft?too.?The?distribution?regularity?of?the?transverse?stress?is?also?discussed?,which?would?be?useful?in?the?design?of?this?kind?of?girder.?It?is?indicated?from?the?results?that?the?middle?of?the?cells?and?the?web?armpits?are?proved?to?be?the?worst?loading?position?in?this?kind?of?girder.

Key words: corrugated steel webs , multi-cell box girder , transverse stress , finite element ;

摘要： 结合河南卫河大桥工程实例,采用数值分析法中的有限元法,研究各受力参数对单箱三室波形钢腹板PC组 合箱梁横向应力的影响;揭示单箱三室波形钢腹板PC组合箱梁在集中荷载和汽车活载作用下,箱梁的横向应力峰 值的变化规律。计算数据表明,各室中心线正弯矩区和各腹板加腋处负弯矩区为单箱多室波形钢腹板PC组合箱 梁的横向受力最不利位置。

关键词: 波形钢腹板, 单箱多室, 横向应力, 有限元