width 12[m] "桥宽"
height 5[m] "吊车高度"
columnDistance 2[m] "桩基点间距"
trolleyWidth 0.8[m] "台车宽度"
trolleyPos 3[m] "台车中心"
trolleyWeight 200[kg] "台车重量"
payload 15[ton] "台车载重"
maxTemp 50[degC] "最大服役温度"