钢箱梁吊装方案.doc

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1、钢箱梁的验算：K59+770桥钢箱梁总重右幅为286.2t,左幅为392.6t,所以有线荷载为右幅286.2/50二5.724t/m,左幅392.6/50二7.852t/m。根据节段划分可知最重节段的重量为14X7.852=109.928t我公司根据具体情况决定采用两台200t的吊车进行吊装200吨汽车吊性能表13.317.621.926.230.534.839.143.447.75256.360320014033.51391301183.541311201161149544.51201121101119

2、3764.5511310410510491756056100929292886959496789828282816457483978807373737264574538.53289726565656564564336.531.525.59106159595958595440.53530.525.420.5101154535354513833.529.824.920.217111249.54&54849.5483632.528.524.519.916.81214424140.542.54231.528.92

3、62319.316.21416353636.53628.32623.621.418.415.5161830.53231.53125.823.421.519.617.614.9182028.327.927.223.52119.618.116.414.2202225.124.724.121.819.217.916.715.413.7222422.121.420.417.616.415.414.413.2242619.819.119.216.315.114.313.412.3262817.117.715.113

4、.913.212.511.5283016161412.812.211.710.8303213.314.513.211.811.310.910.1323413.212.411.210.510.29.4343611.311.710.69.89.68.8363811.2109.198.3384010.29.48.78.47.740428.98.37.87.242448.57.97.46.744467.56.96.346487.16.55.948506.15.650525.75.252544.954564.656

5、根据以上200t吊车的功能表可知，在吊装高度为8米吋，臂长17.6米吋，200t吊车的起吊重量为73t所以两台吊车的起吊重量为146t146/109.28=1.336>1.2(安全系数)所以此方案可行。K60+825桥第三联钢箱梁总重为580.5t,左右幅一样，所以左右单幅重量为290.25t,单位线荷载为290.25/50=5.805t/m,根据单元节段的划分可知,最重单元节段为5.805X14=81.27t根据实际情况我公司采用一台500t的吊车，和一台200t的吊车。LTM1500-500t全液压汽

6、车吊机主臂额定性能表1：支腿开距=10X9.6m.旋转角度二360。、标准配重=135to以下工况仅供参考，实际请与本公司业务员联系!冋转半径5)主臂长度(m)冋转半径(m)16.121.326.531.736.942.13500500500q3.54004004002623.5432532532526224844.52622622612592394.552612552452432291835623122621621420816814567206202192190190156133116781861821

7、73170170145123107891701621561531531341141009101551451411381381241069410121281191171141141079283121410710099979793807314168282837163187171716555-206661625849.520225354534522244747.54640.5242642.540.536.5262837.53633.5283032.53231303228.328.5323425.32&63436

8、24.2363821.7384019.440当吊装高度为19米时，主臂长度为26.5米时，500t吊车的起吊重量为69t,当吊装高度为19米时，主臂长度为26.2米时，起吊重量为30t,故两台吊车同时起吊的重量为99t99/81.62=1.213>1.2(安全系数)故此吊装方案可行。K60+825桥第七联钢箱梁总重为1468.6t,第七联为连续两跨，单跨跨径为58米，左右幅相同,可知单位线荷载为1468.6/(2X58X2)=