水利与建筑工程学报
水利與建築工程學報
수리여건축공정학보
TECHNIQUE OF SEEPAGE CONTROL
2011年
4期
46-49
,共4页
有限元%反拱底板%应力%计算模型
有限元%反拱底闆%應力%計算模型
유한원%반공저판%응력%계산모형
finite element%anti-arched floor%stress%calculation model
在实际运用过程中,反拱底板往往会出现裂缝,造成底板出现裂缝的原因主要是在设计中对结构内力的计算与实际不符,所以有必要采用有限元方法对反拱底板进行分析。本文针对梁寨节制闸的工程实例,采用三维有限元分析软件MSC.MARC求解反拱底板在节制闸各荷载作用下所受的应力,判断其整体强度和稳定性,并对其工作性态进行分析。实例分析表明,三维有限元分析结果能较直观、准确反映结构的强度状况。
在實際運用過程中,反拱底闆往往會齣現裂縫,造成底闆齣現裂縫的原因主要是在設計中對結構內力的計算與實際不符,所以有必要採用有限元方法對反拱底闆進行分析。本文針對樑寨節製閘的工程實例,採用三維有限元分析軟件MSC.MARC求解反拱底闆在節製閘各荷載作用下所受的應力,判斷其整體彊度和穩定性,併對其工作性態進行分析。實例分析錶明,三維有限元分析結果能較直觀、準確反映結構的彊度狀況。
재실제운용과정중,반공저판왕왕회출현렬봉,조성저판출현렬봉적원인주요시재설계중대결구내력적계산여실제불부,소이유필요채용유한원방법대반공저판진행분석。본문침대량채절제갑적공정실례,채용삼유유한원분석연건MSC.MARC구해반공저판재절제갑각하재작용하소수적응력,판단기정체강도화은정성,병대기공작성태진행분석。실례분석표명,삼유유한원분석결과능교직관、준학반영결구적강도상황。
In practical applications,cracks are often occurred on the anti-arch floor.And the main reason of this phenomenon is that in the design,the calculation for the internal force of structures does not match the actual situation.Therefore,it is necessary to analyze the anti-arch floor by using the finite element method.Here,according the the engineering case of Liangzhai controlling gate,the three-dimensional finite element analysis software MSC.MARC is adopted to solve the stress of anti-arched floor in the overall structure of controlling gate,judge its overall strength and stability and analyze its working condition.Examples demonstrate that the result of three-dimensional finite element analysis could reflect the strength situation of the structure more directly and accurately.
