灌芯纤维增强石膏板结构的弹塑性分析
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摘要
利用多垂直杆元模型建立了混凝土灌芯纤维增强石膏板的力学计算模型,并给出了垂直杆单元和剪切单元荷载-位移骨架曲线的计算方法.利用该计算模型,对一幢六层住宅进行了模态分析,计算出的周期、振型与实测值符合较好,验证了该计算模型的准确性和有效性;同时,还利用该模型对住宅进行了pushover分析,计算出结构在多遇地震及罕遇地震情况下的性能特点,证明该结构的层间位移角既能满足弹性极限的要求,又能满足弹塑性极限的要求,可以利用该模型校核实际工程设计的可靠性.
The analytical model was established by using the multi-vertical-line-element model for concrete-filled glass fiber reinforced gypsum wall panels. Then the method for calculating the force-displacement skeleton curves of vertical-line-element and shear element was proposed. With the proposed analytical model,modal analysis was done for a six-storied house. The calculated periods and modes of vibration agreed well with tested ones,it proves the accuracy and validity of the proposed analytical model and the calculating method. At the same time,pushover analysis was carried out,the calculated performance points under frequent earthquake and very rare earthquake proved the story drift ratio can meet the elastic limit requirement and the elastic-plastic limit requirement,the proposed analytical model can verify reliability of an actual building design. In addition,it proves that this model has the advantages of clear mechanical conception,simple calculation and relatively good accuracy,it is convenient for calculating integral structure.
The analytical model was established by using the multi-vertical-line-element model for concrete-filled glass fiber reinforced gypsum wall panels. Then the method for calculating the force-displacement skeleton curves of vertical-line-element and shear element was proposed. With the proposed analytical model,modal analysis was done for a six-storied house. The calculated periods and modes of vibration agreed well with tested ones,it proves the accuracy and validity of the proposed analytical model and the calculating method. At the same time,pushover analysis was carried out,the calculated performance points under frequent earthquake and very rare earthquake proved the story drift ratio can meet the elastic limit requirement and the elastic-plastic limit requirement,the proposed analytical model can verify reliability of an actual building design. In addition,it proves that this model has the advantages of clear mechanical conception,simple calculation and relatively good accuracy,it is convenient for calculating integral structure.
引文
[1]柯玉萍.高层复合墙板结构体系地震反应分析[D].天津:天津大学建筑工程学院,2007.
[2]丁红岩,魏秉奎.纤维增强石膏板组合墙体抗震性能的非线性有限元分析[J].四川建筑科学研究,2006,32(6):150-155.
[3]刘康.混凝土灌芯纤维增强石膏板抗震性能的试验研究及有限元分析[D].天津:天津大学建筑工程学院,2003.
[4]许岩.复合墙板结构试点工程动力测试及地震反应分析[D].天津:天津大学建筑工程学院,2005.
[5]姜忻良,高海,许岩.复合墙板计算模型与试点工程动力特性分析[J].地震工程与工程振动,2006,26(1):100-104.
[6]姜忻良,张宇,许岩.混凝土石膏复合墙板试点工程动力特性测试与分析[J].建筑结构,2007,37(11):111-113.
[7]姜忻良,张玉芝.复合墙板结构抗震性能的数值模拟研究[J].工程抗震与加固改造,2007,29(4):63-67.
[8]岳建伟,姜忻良.混凝土灌芯纤维石膏板的宏观计算模型[J].四川大学学报:工程科学版,2007,39(6):55-60.
[9]刘锡礼,王秉权.复合材料力学基础[M].北京:中国建筑工业出版社,1984.
[10]岳建伟,姜忻良,谷岩,等.速成墙板的抗剪性能试验研究[J].华中科技大学学报:城市科学版,2006,23(1):28-30.
[11]Wu Yufei,Dare M P.Axial and shear behavior of glass fiber reinforced gypsum wall panels:tests[J].Journal of Composites for Construction,ASCE,2004,8(6):569-578.
[12]林宗凡.建筑结构原理及设计[M].北京:高等教育出版社,2008.
[2]丁红岩,魏秉奎.纤维增强石膏板组合墙体抗震性能的非线性有限元分析[J].四川建筑科学研究,2006,32(6):150-155.
[3]刘康.混凝土灌芯纤维增强石膏板抗震性能的试验研究及有限元分析[D].天津:天津大学建筑工程学院,2003.
[4]许岩.复合墙板结构试点工程动力测试及地震反应分析[D].天津:天津大学建筑工程学院,2005.
[5]姜忻良,高海,许岩.复合墙板计算模型与试点工程动力特性分析[J].地震工程与工程振动,2006,26(1):100-104.
[6]姜忻良,张宇,许岩.混凝土石膏复合墙板试点工程动力特性测试与分析[J].建筑结构,2007,37(11):111-113.
[7]姜忻良,张玉芝.复合墙板结构抗震性能的数值模拟研究[J].工程抗震与加固改造,2007,29(4):63-67.
[8]岳建伟,姜忻良.混凝土灌芯纤维石膏板的宏观计算模型[J].四川大学学报:工程科学版,2007,39(6):55-60.
[9]刘锡礼,王秉权.复合材料力学基础[M].北京:中国建筑工业出版社,1984.
[10]岳建伟,姜忻良,谷岩,等.速成墙板的抗剪性能试验研究[J].华中科技大学学报:城市科学版,2006,23(1):28-30.
[11]Wu Yufei,Dare M P.Axial and shear behavior of glass fiber reinforced gypsum wall panels:tests[J].Journal of Composites for Construction,ASCE,2004,8(6):569-578.
[12]林宗凡.建筑结构原理及设计[M].北京:高等教育出版社,2008.
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