错层框架结构节点垂直加腋抗震性能分析
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摘要
首先针对错层框架结构造成的平面不规则结构,以某一错层框架结构工程为研究对象,对结构进行了反应谱和弹性时程分析,弹性时程分析时,结构最大层间位移角超过规范限值。其次通过对框架结构错层节点处采取垂直加腋措施,对比分析了普通错层框架结构和节点垂直加腋错层框架结构的自振周期、最大楼层位移和层间位移角等,垂直加腋错层框架结构最大层间位移角满足规范要求。结果表明:采取框架结构错层处垂直加腋的加强措施,可有效减小最大楼层位移与层间位移角,改善结构的抗震性能,为类似工程提供参考。
Taking one staggered floor frame structure of the irregular plane structure as research object, the response spectrum and elastic time history analysis of the structure were carried out, the maximum displacement angle exceeded the specification limit during the elastic time history analysis. Themeasure of vertical haunch was taken at the staggered joints of the frame structure, the natural vibration period, maximum displacement and displacement angle of the common staggered frame structure and the staggered floor frame structure with vertical haunch connections were compared and analyzed. The maximum displacement angle of the staggered floor frame structure with vertical haunch connections satisfied the specification requirements. The results show that the measure of vertical haunch could effectively reduce the maximum floor displacement and displacement angle, improve the seismic performance of the structure, and provide reference for similar projects.
Taking one staggered floor frame structure of the irregular plane structure as research object, the response spectrum and elastic time history analysis of the structure were carried out, the maximum displacement angle exceeded the specification limit during the elastic time history analysis. Themeasure of vertical haunch was taken at the staggered joints of the frame structure, the natural vibration period, maximum displacement and displacement angle of the common staggered frame structure and the staggered floor frame structure with vertical haunch connections were compared and analyzed. The maximum displacement angle of the staggered floor frame structure with vertical haunch connections satisfied the specification requirements. The results show that the measure of vertical haunch could effectively reduce the maximum floor displacement and displacement angle, improve the seismic performance of the structure, and provide reference for similar projects.
引文
[1]中华人民共和国国家标准. GB50011—2010建筑抗震设计规范:2016年版[S].北京:中国建筑工业出版社,2010.
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[4]张永山,莊初立,汪大洋,等.非线性黏滞阻尼器对某含较多短柱框架结构的减震控制研究[J].建筑结构,2015,45(1):43–46.
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[10]郝永昶,胡庆昌,徐云扉,等.应用分体柱改善短柱(高轴压比)抗震性能的试验研究[J].建筑结构学报,1998(6):2–11.
[11]尉迪.双向水平反复加载下钢筋混凝土短柱的抗震性能研究[D].天津:天津大学,2016.
[12]刘康宁.含加芯柱短柱的高层框剪结构抗震性能分析[D].济南:山东建筑大学,2014.
[13]杨彬.高层建筑结构中极短柱抗震性能研究[D].合肥:安徽建筑大学,2016.
[2]Rao K N V P,Seetharamulu K,Krishnamoorthy S. Frames with staggered panels:experimental study[J]. Journal of Structural Engineering,1984,110(5):1134–1148.
[3]王义俊.高层错层结构受力性能研究[D].长沙:湖南大学,2008.
[4]张永山,莊初立,汪大洋,等.非线性黏滞阻尼器对某含较多短柱框架结构的减震控制研究[J].建筑结构,2015,45(1):43–46.
[5]Thomsen J H I,Wallace J W. Lateral load behavior of reinforced concrete columns constructed using high-strength materials[J]. ACI Structural Journal,1994,91(5):605–615.
[6]贾金青.钢骨高强混凝土短柱及高强混凝土短柱力学性能的研究[D].大连:大连理工大学,2000.
[7]姜维山,白国良.配复合箍、螺旋箍、X形筋钢筋砼短柱的抗震性能及抗震设计[J].建筑结构学报,1994(1):2–16.
[8]范重,钱稼茹,吴学敏.核心配筋柱抗震性能试验研究[J].建筑结构学报,2001(1):14–19.
[9]张素梅,刘界鹏,马乐,等.圆钢管约束高强混凝土轴压短柱的试验研究与承载力分析[J].土木工程学报,2007(3):24–31.
[10]郝永昶,胡庆昌,徐云扉,等.应用分体柱改善短柱(高轴压比)抗震性能的试验研究[J].建筑结构学报,1998(6):2–11.
[11]尉迪.双向水平反复加载下钢筋混凝土短柱的抗震性能研究[D].天津:天津大学,2016.
[12]刘康宁.含加芯柱短柱的高层框剪结构抗震性能分析[D].济南:山东建筑大学,2014.
[13]杨彬.高层建筑结构中极短柱抗震性能研究[D].合肥:安徽建筑大学,2016.