CAJ | 학술논문

将单箱多室波形钢腹板箱梁等效为平面板梁模型，用刚接梁法推导了单箱多室波形钢腹板箱梁荷载横向分布系数的计算公式，并对1根单箱双室波形钢腹板箱梁进行了荷载横向分布试验研究．研究结果表明，刚接梁法计算结果与试验及有限元结果的误差均小于7％，与考虑中横隔板的有限元结果相比，偏于安全．对于有、无中横隔板的单箱多室波形钢腹板箱梁，均可采用刚接梁法计算其荷载横向分布．根据试验结果建议单箱双室波形钢腹板箱梁荷载横向分布系数沿桥跨的取值为：弯矩可统一采用横向分布系数mc （mc 为刚接梁法计算的跨中荷载横向分布系数）；中梁支反力在梁端采用0．6 m0（m0为杠杆原理法计算的梁端荷载横向分布系数），L/4～L区段内采用mc，梁端至L/4区段，呈直线形过渡；边梁支反力可统一采用0．9m0．
장단상다실파형강복판상량등효위평면판량모형，용강접량법추도료단상다실파형강복판상량하재횡향분포계수적계산공식，병대1근단상쌍실파형강복판상량진행료하재횡향분포시험연구．연구결과표명，강접량법계산결과여시험급유한원결과적오차균소우7％，여고필중횡격판적유한원결과상비，편우안전．대우유、무중횡격판적단상다실파형강복판상량，균가채용강접량법계산기하재횡향분포．근거시험결과건의단상쌍실파형강복판상량하재횡향분포계수연교과적취치위：만구가통일채용횡향분포계수mc （mc 위강접량법계산적과중하재횡향분포계수）；중량지반력재량단채용0．6 m0（m0위강간원리법계산적량단하재횡향분포계수），L/4～L구단내채용mc，량단지L/4구단，정직선형과도；변량지반력가통일채용0．9m0．
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.