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贝雷片的截面连续箱梁的三个操作方法

时间:2019-03-08 10:51:44  来源:  作者:

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1.每节桁架都设置1对抗风拉杆,端竖杆横梁上设置斜撑。JTG D60-2004)《公路桥涵钢结构及木结构设计规范》(JTJ 025-86) 《公路桥梁抗风设计规范》(D60-2004)《公路桥涵施工技术规范》(JTJ 041-2000) 路桥施工计算手册》周水兴等编著 《建筑施工碗扣式钢管脚手架安全技术规范》、模板  0#块模板采用定型钢模板,内膜采用δ=15 mm的竹胶板。
 
2.钢模板容许应力 [σ0]=140MPa,弹性模量E=2.06*105MPa。纵横向方木  纵向方木截面尺寸为15×15cm,放置碗口支架上方,间距60cm。横向方木搭在纵向方木上,间距30cm。方木的力学性能指标按《木结构设计规范》GB 50005-2003中的TC13A类木材按乘以相应的条件折减系数取值,则:[σ0]=12*0.9=10.8MPa,E=10*103*0.85=8.5×103MPa 容重取6KN/m3。工字钢工字钢采用I18和I32(主梁两侧各6根,长12m),纵向搭在贝雷片上,间距60cm。
 
3.工字钢  工字钢采用I18和I32(主梁两侧各6根,长12m),纵向搭在贝雷片上,间距60cm。 贝雷片 贝雷片采用国标3.0*1.5m型贝雷片,单片纵向允许受压荷载为663KN。 横距为:箱室底板和翼缘板处900mm;纵距为:腹板和底板处600mm,翼缘板处900mm。
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