装配整体式半刚性节点在地下工程中的数值分析
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摘要
基于宁波市东部新城中央公园工程的设计方案,对预制装配式结构进行数值模拟,以实现半刚性节点在地下装配式结构动力分析及设计中的程序化应用。构建此项目梁-柱半刚性节点力学模型,分析获得M-θ滞回曲线,并将其力学性能赋予整体结构模型中。采用MIDAS/Gen软件对装配式混凝土结构进行弹塑性动力时程分析,获取装配式结构的屈服准则、变形能力等抗震性能。通过对比现浇方案可得出,装配良好的梁柱构件具有较强的刚度、强度和变形恢复能力等性能,并且结构计算指标符合规范要求。
In order to realize the design calculation programming of the application of semi-rigid joints in dynamic analysis of underground fabricated structures, the numerical simulation of the assembly parts in Ningbo East New Town Central Park project was carried out. Based on the design scheme, the semi-rigid mechanical model of beam-column joints was constructed in a model of M-θ hysteretic curve by numerical calculation. The mechanical properties obtained from finite-element computing were allocated to the engineering structures. Through the elastoplastic time history analysis of fabricated concrete structures, the yield principle and deformation capacity of the fabricated structure was caculated by Midas Gen. Through the comparative analysis of cast-in-place plan, we can conclude that well assembled components have strong stiffness, strength and deformation recovery ability etc., and can meet the relevant specification requirements.
In order to realize the design calculation programming of the application of semi-rigid joints in dynamic analysis of underground fabricated structures, the numerical simulation of the assembly parts in Ningbo East New Town Central Park project was carried out. Based on the design scheme, the semi-rigid mechanical model of beam-column joints was constructed in a model of M-θ hysteretic curve by numerical calculation. The mechanical properties obtained from finite-element computing were allocated to the engineering structures. Through the elastoplastic time history analysis of fabricated concrete structures, the yield principle and deformation capacity of the fabricated structure was caculated by Midas Gen. Through the comparative analysis of cast-in-place plan, we can conclude that well assembled components have strong stiffness, strength and deformation recovery ability etc., and can meet the relevant specification requirements.
引文
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[13] 贺欢欢,王新武,陈易飞.半刚性梁柱连接框架中柱节点有限元分析[J].钢结构,2017,32(11):32-36.
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[15] 潘建荣,杨正挺,王湛,等.半刚性组合框架骨架曲线实用计算方法[J].中南大学学报(自然科学版),2017,48(11):3014-3023.
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[17] 禹海涛,张正伟.地下结构抗震设计和分析的反应剪力法[J].结构工程师,2018,34(2):135-144.
[2] 叶林滨.新型装配式村镇住宅混凝土结构体系综述[J].水利与建筑工程学报,2018,16(3):14-19.
[3] 胡长姣,王新武.半刚性连接钢框架的抗震性能研究现状[J].洛阳理工学院学报(自然科学版),2014,24(3):27-32.
[4] 方诗圣,张春凤,田凯,等.基于半刚性碗扣式模板支撑体系的承载力分析[J].水利与建筑工程学报,2016,14(6):35-39.
[5] 李玉耀.浅谈预制装配式结构的节点连接方式[J].河南建材,2017(4):141-142.
[6] 韩冬,布欣,王新武,等.空间剖分T型钢梁柱连接角柱节点抗震试验[J].浙江大学(工学版),2017,51(2):287-296.
[7] 杨建江,李苏盐,余地华.结合实例探讨钢筋屈服后混凝土楼板裂缝宽度的数值方法[J].特种结构,2014(1):30-43.
[8] 缪俊,程万鹏,宋玉普.预制装配式部分钢骨混凝土框架梁柱节点有限元分析[J].大连理工大学学报,2014,54(5):568-574.
[9] 林高峰.考虑叠合面摩擦滑移的装配式混凝土结构性能与分析方法[D].杭州:浙江大学,2015:54-66.
[10] 曹杨,孙千伟,宫文军,等.新型装配式混凝土框架型钢节点试验[J].建筑科学与工程学报,2016,33(2):15-23.
[11] 中华人民共和国住房和城乡建设部.混凝土结构设计规范:GB 50010—2010[S].北京:中国建筑工业出版社,2010:19-21.
[12] 刘超.基于ANSYS的钢-混凝土体外预应力连续组合梁有限元分析[J].现代交通技术,2018(1):31-34.
[13] 贺欢欢,王新武,陈易飞.半刚性梁柱连接框架中柱节点有限元分析[J].钢结构,2017,32(11):32-36.
[14] 高向玲,徐龙标,李杰,等.预制混凝土梁柱节点试验及框架受力性能分析[J].湖南大学学报(自然科学版),2017,44(7):97-103.
[15] 潘建荣,杨正挺,王湛,等.半刚性组合框架骨架曲线实用计算方法[J].中南大学学报(自然科学版),2017,48(11):3014-3023.
[16] 鲁浩.预应力装配式混凝土框架结构节点半刚性研究[D].杭州:浙江大学,2016:54-72.
[17] 禹海涛,张正伟.地下结构抗震设计和分析的反应剪力法[J].结构工程师,2018,34(2):135-144.