?楼面

... 吊车荷载crane load 楼面、屋面活荷载floor live load；roof live load 桥（桥梁）荷载load on bridge ...

?屋面活载

... roller 压路机；滚筒 roof live load 屋面活载 roof load 屋顶荷载 ...

?屋面活荷载

floor live load roof live load 屋面活荷载 floor live load；roof live load 屋面活荷载 design vehicular live load (桥梁上)车辆实时载荷设计 .