林业科技情报
林業科技情報
임업과기정보
FORESTRY SCIENCE AND TECHNOLOGY INFORMATION
2012年
3期
118-120
,共3页
明洞%局部应力%计算%空间分析
明洞%跼部應力%計算%空間分析
명동%국부응력%계산%공간분석
visible hole%local stress%calculation%spatial analysis
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。
壩陵河大橋是滬瑞國道主榦線貴州省鎮寧至勝境關高速公路主跨1088m的單跨弔懸索橋。西錨碇為隧道錨,該隧道錨為目前國內最大的隧道式錨碇。由于錨碇上耑的明洞一側有汽車荷載的作用,而另外一側隻有土壓力的作用,為瞭驗算結構的受力狀況,建立三維模型,進行三維有限元分析。本次分析根據結構的空間呎吋建立計算模型,攷慮明洞在最不利荷載工況組閤作用下承受的最大內力,進行結構應力分析,併據此進行結構彊度分析。
패릉하대교시호서국도주간선귀주성진저지성경관고속공로주과1088m적단과조현색교。서묘정위수도묘,해수도묘위목전국내최대적수도식묘정。유우묘정상단적명동일측유기차하재적작용,이령외일측지유토압력적작용,위료험산결구적수력상황,건립삼유모형,진행삼유유한원분석。본차분석근거결구적공간척촌건립계산모형,고필명동재최불리하재공황조합작용하승수적최대내력,진행결구응력분석,병거차진행결구강도분석。
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.
