[1]张晨,孟少平.后张无黏结装配式框架节点抗震承载力预测[J].东南大学学报(自然科学版),2014,44(5):1005-1010.[doi:10.3969/j.issn.1001-0505.2014.05.023]
　Zhang Chen,Meng Shaoping.Prediction of seismic bearing capacity of unbonded post-tensioned precast concrete frame joints[J].Journal of Southeast University (Natural Science Edition),2014,44(5):1005-1010.[doi:10.3969/j.issn.1001-0505.2014.05.023]
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后张无黏结装配式框架节点抗震承载力预测()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
44
期数:
2014年第5期
页码:
1005-1010
栏目:
土木工程
出版日期:
2014-09-20

文章信息/Info

Title:
Prediction of seismic bearing capacity of unbonded post-tensioned precast concrete frame joints
作者:
张晨1; 2; 孟少平1
1东南大学混凝土及预应力混凝土结构教育部重点实验室, 南京 210096; 2南通大学建筑工程学院, 南通 226019
Author(s):
Zhang Chen1; 2;  Meng Shaoping1
1Key laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Southeast University, Nanjing 210096, China
2School of Architecture Engineering, Nantong University, Nantong 226019, China
关键词:
后张;  无黏结;  装配式;  框架节点;  抗震承载力;  预测
Keywords:
post-tensioned;  unbonded;  precast;  frame joints;  seismic bearing capacity;  prediction
分类号:
TU378.4;TU352.11
DOI:
10.3969/j.issn.1001-0505.2014.05.023
摘要:
为研究后张无黏结装配式框架梁柱节点的抗震性能,提出了一种节点骨架曲线上特征点的计算方法.首先,基于弹性梁的理论和刚体转动原理,详细分析了后张无黏结节点梁端位移的组成,并给出计算位移的通用公式.然后,根据梁端截面在不同临界点(开裂点、线性极限点、混凝土核心区压碎点)的受力特点,计算了各特征点对应的荷载.最后,根据后张无黏结角钢连接节点的转动特征以及角钢在反复拉压荷载下的恢复力模型,得到骨架曲线上特征点的简化计算公式.计算结果与低周往复荷载下节点试验结果吻合较好,由此证明了计算的合理性和正确性.结果表明,该计算方法基于合理的力学概念,可较为准确地预测节点骨架曲线,具有计算简便、适用性广的优点.
Abstract:
In order to study the seismic bearing capacity of unbonded post-tensioned precast concrete frame beam-to-column joints, a calculation method for the skeleton curve of joints is proposed. First, based on the elastic beam deflection and rigid body rotation theory, the composition of displacement of the unbonded post-tensioned joints is analyzed and the common formulas are given. Then, according to the loading features of the section at the beam end at different critical points(crack points, linear critical points, crush points of the core concrete), the corresponding loads are calculated. Finally, according to the rotation features and the hysteretic model of the angle of the unbonded post-tensioned steel angle joints, the simplified formulas for the characteristic points of the skeleton curve are deduced. The calculation results agree well with the experimental results under reversed cyclic loading, proving the rationality and correctness of the calculations. The results show that based on reasonable rational mechanics, this calculation method, which is simple and widely used, can predict the skeleton curve of joints accurately.

参考文献/References:

[1] El-Sheikh M T, Pessiki S, Sause R, et al. Moment-rotation behavior of unbonded post-tensioned precast concrete beam-column connections[J]. ACI Structural Journal, 2000, 97(1): 122-131.
[2] Stanton J F, Nakaki S D. Design guidelines for precast concrete seismic structural systems[R]. Seattle, WA, USA: Department of Civil Engineering of University of Washington, 2002.
[3] Morgen B G, Kurama Y C. Seismic design of friction-damped precast concrete frame structures[J]. Journal of Structural Engineering, 2007, 133(11): 1501-1511.
[4] 柳炳康,宋满荣,黄慎江,等.三层预压装配式预应力混凝土框架抗震性能试验研究[J].建筑结构学报,2011,32(9): 99-106.
　　Liu Bingkang, Song Manrong, Huang Shenjiang, et al. Experimental study on seismic performance of three story post-tensioned precast RC frame[J]. Journal of Building Structures, 2011, 32(9): 99-106.(in Chinese)
[5] 柳炳康,黄慎江,宋满荣,等.预压装配式预应力混凝土框架抗震性能试验研究[J].土木工程学报,2011,44(11):1-8.
　　Liu Bingkang, Huang Shenjiang, Song Manrong, et al. Experimental study of seismic performance of prestressed fabricated PC frames[J]. China Civil Engineering Journal, 2011, 44(11): 1-8.(in Chinese)
[6] 种迅,孟少平,张林振.后张预应力预制混凝土框架节点抗震性能数值模拟与理论分析[J].工程力学,2013,30(5):153-159,164.
　　Chong Xun, Meng Shaoping, Zhang Linzhen. Numerical and theoretical analysis on seismic performance of post-tensioned prestressed concrete beam-column assemblages[J]. Engineering Mechanics, 2013, 30(5): 153-159,164.(in Chinese)
[7] 王冬雁.无粘结预应力装配混凝土节点抗震及震损加固性能研究[D].北京:北京工业大学工程抗震与结构诊治北京市重点实验室,2008.
[8] Rodgers G W, Mander J B, Chase J G. Modeling cyclic loading behavior of jointed precast concrete connections including effects of friction, tendon yielding and dampers[J]. Earthquake Engineering and Structural Dynamics, 2012, 41(15): 2215-2233.
[9] Rodgers G W, Solberg K M, Mander J B, et al. High-force-to-volume seismic dissipators embedded in a jointed precast concrete frame[J]. Journal of Structural Engineering, 2012, 138(3): 375-386.
[10] 蔡小宁.新型预应力预制混凝土框架结构抗震能力及设计方法研究[D].南京:东南大学土木工程学院,2012.
[11] Li L. Further experiments on damage avoidance design of beam-to-column joints[D]. Christchurch, New Zealand: University of Canterbury, 2006.
[12] 中华人民共和国建设部.GB50010—2010混凝土结构设计规范[S].北京:中国建筑工业出版社,2010.
[13] Mander J B, Priestley M J N, Park R. Theoretical stress-strain model for confined concrete [J]. Journal of Structural Engineering, 1988, 114(8): 1804-1827.
[14] Weldon B D, Kurama Y C. Nonlinear behavior of precast concrete coupling beams under lateral loads [J]. Journal of Structural Engineering, 2007, 133(11): 1571-1581.

相似文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2014-04-03.
作者简介: 张晨(1981—),男,博士生,讲师;孟少平(联系人),男,博士,教授,博士生导师,cardoso_meng@sina.com.
基金项目: 交通运输部科技资助项目(2012319813260)、江苏省高校自然科学基金资助项目(13KJB560011)、江苏省青年科学基金资助项目(BK20130408).
引用本文: 张晨,孟少平.后张无黏结装配式框架节点抗震承载力预测[J].东南大学学报:自然科学版,2014,44(5):1005-1010. [doi:10.3969/j.issn.1001-0505.2014.05.023]
更新日期/Last Update: 2014-09-20