东南大学学报（自然科学版）Issue(1)：145-149,5.DOI:10.3969/j.issn.1001-0505.2014.01.026
单箱多室波形钢腹板箱梁荷载横向分布
Load transverse distribution of single box multi-cell girder with corrugated steel webs
摘要
Abstract
A formula for calculating the load transverse distribution coefficient of single box multi-cell girder with corrugated steel webs was deduced by the rigid connected beam method on the basis of the equivalent plane plate-girder model.Then,a test on a single box double-cell girder with cor-rugated steel webs was carried out to research its load transverse distribution.The research results show that the error between the load transverse distribution coefficient calculating with rigid connect-ed beam method and that obtained from test and finite element analysis is less than 7%.Compared with the finite element analysis result of the girder with midspan diaphragm,the load transverse dis-tribution coefficient calculated by the rigid connected beam method is relatively safe.Thus the rigid connected beam method can be used to calculate the load transverse distribution coefficient of the sin-gle box double-cell girder with corrugated steel webs where or not there is a diaphragm in the mids-pan of the girder.The distribution law of the load transverse distribution coefficient along the longi-tudinal of single box multi-cell girder with corrugated steel webs was suggested according to the ex-perimental results.The moment transverse distribution coefficients are mc ,where mc is the load trans-verse distribution coefficient at the middle span calculated by the rigid beam method.For the support reaction transverse distribution coefficients of the middle girder,0.6m0 is used at the end,where m0 is the load transverse distribution coefficient at the end calculated by the level principle method;mc is applicable from L/4 to L;and the transition from the end to L/4 is linear.The support reaction transverse distribution coefficients of the side girder are 0.9m0.关键词
桥梁工程/单箱多室/波形钢腹板/刚接梁法/荷载横向分布Key words
bridge engineering/single box multi-cell/corrugated steel webs/rigid connected beam method/load transverse distribution分类
建筑与水利引用本文复制引用
马磊,万水,蒋正文,李明鸿..单箱多室波形钢腹板箱梁荷载横向分布[J].东南大学学报（自然科学版）,2014,(1):145-149,5.基金项目
国家自然科学基金资助项目（50078014）、河南省交通运输厅科技资助项目（2010P247）． （）
