双梁桥式起重机结构设计正式说明书

道重РA=0.04512m2Р=2.1301010 mm4Р=1.712109 mm4РA1=0.03616m2Р1=4.264109 mm4Р1=6.822108 mm4Р=4165.3 NР2) 小车轮压Р=38.869.81Р =381.22 N/mР栏杆等重量Р=g=1009.81Р =981 N/mР主梁的均布载荷Р=++Р=5527.52 N/mР起升载荷为Р=gР =Р =49000 NР小车自重Р ==170422 NР小车自重载荷Р=mgР =12.129.811000Р =107910.2 NР小车重力产生的静轮压和Р=Р =Р =50666 NР=Р =53480.38 NР额定起升载荷产生的和РP01=Р =125810.8 NРP02=Р =119189.1 NР=+=175476.8 NР=5527.52 N/mР3)动力效应系数Р4) 惯性载荷Р5)偏斜运行侧向力Р= P02+=172669.8 NР小车轮压Р=+=349146.68 NР空载轮压Р=33.5k NР=38.3k NР1=1.1Р2=1+0.7VqР =1+0.712.1/60Р =1.1411Р=1.+0.058Р =1.1+0.05875.3/60Р =1.18Рh=1 mm,接头高度差Р大小车都是4个车轮,其中主动轮各占一半,按车轮打滑条件确定大小车运行的惯性力Р一根主梁上的小车惯性力为Р==24939.05 NР大车运行起制动惯性力(一根主梁上)为Р==24939.05 NР= =359.82 N/mР主梁跨端设备惯性力影响力小,忽略Р一根主梁的重量力Р=5527.52(28-0.4)Р =152559.5 NР一根端梁单位长度的重量Р=Р =1.1Р=349146.68 NР=24939.05 NР=24939.05 NР=359.82 N/mР=152559.5 N