框支密肋壁板结构托梁内力计算
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摘要
建立了框支密肋复合墙体墙梁的力学简化模型,并利用考虑水平摩阻力的弹性地基梁法进行托梁内力计算,同时应用有限元程序对算例进行数值对比分析。理论研究与计算分析表明:框支密肋复合墙体墙梁考虑墙体与托梁之间的界面剪力是必要的,否则不能充分体现托梁与墙体的组合工作性能,内力计算误差较大。
The simplified mechanical model was proposed for frame-supported multi-ribbed composite wall beam.And the internal force of joist was calculated with the method of beam on the elastic foundation which takes the horizontal friction resistance into consideration.Moreover,a comparative analysis was employed with FEA program.It was found that it was necessary to consider the interfacial shearing force between wall and joist for the frame-supported multi-ribbed composite wall beam,otherwise,the performance of the composite would not exhibited sufficiently and the calculation error would be large.
The simplified mechanical model was proposed for frame-supported multi-ribbed composite wall beam.And the internal force of joist was calculated with the method of beam on the elastic foundation which takes the horizontal friction resistance into consideration.Moreover,a comparative analysis was employed with FEA program.It was found that it was necessary to consider the interfacial shearing force between wall and joist for the frame-supported multi-ribbed composite wall beam,otherwise,the performance of the composite would not exhibited sufficiently and the calculation error would be large.
引文
[1]姚谦峰,张亮,刘佩.密肋复合墙体宏观有效弹性模量的细观力学有限元分析[J].工程力学,2009,26(4):139-143.YAO QIAN-FENG,ZHANG LIANG,LIU PEI.Micro-mechanics finite element analysis of effectiveelastic moduli of multi-ribbed slab wall[J].EngineeringMechanic,2009,26(4):139-143.
[2]王爱民,姚谦峰,吴敏哲.密肋复合墙体压弯剪复合受力性能试验研究[J].建筑结构学报,2008,29(2):79-84.WANG AI-MIN,YAO QIAN-FENG,WU MIN-ZHE.Experimental study on behavior under co-action ofpress,bending and shear of multi-ribbed composite wall[J].Journal of Building Structures,2008,29(2):79-84.
[3]黄炜,陈国新,姚谦峰.基于统一强度理论的密肋复合墙体开裂荷载计算[J].工程力学,2008,25(7):94-99.HUANG WEI,CHEN GUO-XIN,YAO QIAN-FENG.Calculation on Cracking Load of multi-ribbedcomposited wall based on twin shear unified strengththeory[J].Engineering Mechanics,2008,25(7):94-99.
[4]丁永刚,姚谦峰.不等跨框支密肋壁板结构连续墙梁抗震性能试验研究[J].世界地震工程,2007,23(4):170-175.DING YONG-GANG,YAO QIAN-FENG.Experimentalstudy on seismic performance of frame-supported multi-ribbed continuous wall beam with unequal spans[J].WorldEarthquake Engineering,2007,23(4):170-175
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[9]黄炜.密肋复合墙体抗震性能及设计理论研究[D].西安:西安建筑科技大学,2004.
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[14]SADANANDAN N S,AMIN GHALI.ReinforcedConcrete Beam-Columns and Beams on ElasticFoundation[J].Journal of Structure Engineering.ASCE,1989,115(3):666-682.
[15]ZHANG YIN,KEVIN D M.Response of a finite beamin contact with a tensionless foundation undersymmetric and asymmetric loading[J].InternationalJournal of Solids and Structures,2006,(41):6745-6758.
[16]ZHANG YIN.Tensionless contact of a finite beamresting on Reissner foundation[J].International Journalof Mechanical Sciences,2008,50:1035-1041.
[17]CRISFIELD M A.Snap-through and snap-backresponse in concrete structures and the dangers ofunder-integration[J].International Journal forNumerical Methods in Engineering,1986,22:751-767.
[18]DARWIN D.Reinforced concrete proceedings of theinternational work shop on finite element analysis ofreinforced concrete structures II[J].Journal ofComputing in Civil Engineering.ASCE,1993:203-232.
[2]王爱民,姚谦峰,吴敏哲.密肋复合墙体压弯剪复合受力性能试验研究[J].建筑结构学报,2008,29(2):79-84.WANG AI-MIN,YAO QIAN-FENG,WU MIN-ZHE.Experimental study on behavior under co-action ofpress,bending and shear of multi-ribbed composite wall[J].Journal of Building Structures,2008,29(2):79-84.
[3]黄炜,陈国新,姚谦峰.基于统一强度理论的密肋复合墙体开裂荷载计算[J].工程力学,2008,25(7):94-99.HUANG WEI,CHEN GUO-XIN,YAO QIAN-FENG.Calculation on Cracking Load of multi-ribbedcomposited wall based on twin shear unified strengththeory[J].Engineering Mechanics,2008,25(7):94-99.
[4]丁永刚,姚谦峰.不等跨框支密肋壁板结构连续墙梁抗震性能试验研究[J].世界地震工程,2007,23(4):170-175.DING YONG-GANG,YAO QIAN-FENG.Experimentalstudy on seismic performance of frame-supported multi-ribbed continuous wall beam with unequal spans[J].WorldEarthquake Engineering,2007,23(4):170-175
[5]热摩奇金.基础实用计算法[M].顾子聪,齐志成,译.北京:中国建筑工业出版社,1954.
[6]庄一舟.地震效应前后框支连续墙梁的试验研究[J].浙江大学学报,1996,31(6):760-766.ZHUANG YI-ZHOU.Experimental study of continuouswall-beam supported by frame before&after seismic effect[J].Journal of ZheJiang University,1996,31(6):760-766.
[7]龚绍熙,李翔.框支墙梁的试验研究、有限元分析和承载力计算[J].建筑结构,2001,31(9):12-16.GONG SHAO-XI,LI XIANG.Experimental research,finite element analysis and bearing capacity calculationof wall-beams supported on frame[J].BuildingStructure,2001,31(9):12-16.
[8]丁永刚.框支密肋壁板结构墙梁受力性能及设计计算方法研究[D].西安:西安建筑科技大学,2006.
[9]黄炜.密肋复合墙体抗震性能及设计理论研究[D].西安:西安建筑科技大学,2004.
[10]宰金珉,宰金璋.高层建筑基础分析与设计[M].北京:中国建筑工业出版社,1993.
[11]谈至明.具有水平摩阻力的弹性地基上梁的解[J].力学与实践,1997,19(3):33-35.TAN ZHI-MING.Solution to beam on elasticfoundation with the horizontal friction resistance[J].Mechanics and Engineering,1997,19(3):33-35.
[12]LIN L,ADAMS G G.Beam on tensionless elasticfoundation[J].Journal of the Engineering MechanicsDivision.ASCE,1987,113(4):542-553.
[13]GIRJA VALLABHAN C V,DAS Y C.Parametricstudy of beams on elastic foundations[J].Journal of theEngineering Mechanics Division.ASCE,1988,114(12):2072-2082.
[14]SADANANDAN N S,AMIN GHALI.ReinforcedConcrete Beam-Columns and Beams on ElasticFoundation[J].Journal of Structure Engineering.ASCE,1989,115(3):666-682.
[15]ZHANG YIN,KEVIN D M.Response of a finite beamin contact with a tensionless foundation undersymmetric and asymmetric loading[J].InternationalJournal of Solids and Structures,2006,(41):6745-6758.
[16]ZHANG YIN.Tensionless contact of a finite beamresting on Reissner foundation[J].International Journalof Mechanical Sciences,2008,50:1035-1041.
[17]CRISFIELD M A.Snap-through and snap-backresponse in concrete structures and the dangers ofunder-integration[J].International Journal forNumerical Methods in Engineering,1986,22:751-767.
[18]DARWIN D.Reinforced concrete proceedings of theinternational work shop on finite element analysis ofreinforced concrete structures II[J].Journal ofComputing in Civil Engineering.ASCE,1993:203-232.
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