明洞局部应力计算浅析  

Local Stress Calculation Analysis Of Visible Hole

作　　者：赵春菲[1] 

机构地区：[1]黑龙江省林业设计研究院

出　　处：《林业科技情报》2012年第3期118-120,共3页Forestry Science and Technology Information

摘　　要：坝陵河大桥是沪瑞国道主干线贵州省镇宁至胜境关高速公路主跨1088m的单跨吊悬索桥。西锚碇为隧道锚,该隧道锚为目前国内最大的隧道式锚碇。由于锚碇上端的明洞一侧有汽车荷载的作用,而另外一侧只有土压力的作用,为了验算结构的受力状况,建立三维模型,进行三维有限元分析。本次分析根据结构的空间尺寸建立计算模型,考虑明洞在最不利荷载工况组合作用下承受的最大内力,进行结构应力分析,并据此进行结构强度分析。Balinghe bridge is a single span self-anchored suspension bridge at the Hurui national road in Guizhou province with main span of 1088m.The west anchorage is tunnel anchor,which is the biggest tunnel anchor in our country.One side of the visible hole on the upper end of anchorage is of the function of vehicle load,and the other side is of the function of soil stress.The 3D model was established to perform 3D finite-element analysis to test the structure loading condition.The calculation model was developed according to the structure＇s space size and the maximum bearing internal force of visible hole under the combination function of disadvantage load was considered for structure stress and strength analysis.

关 键 词：明洞 局部应力 计算 空间分析 

分 类 号：U451[建筑科学—桥梁与隧道工程]