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浙江大学学报(工学版)
浙江大学学报(工学版)
土木与交通工程     
钢绞线锚入式预制砼框架节点构造及试验
管东芝1,2, 郭正兴1,2, 于建兵1, 杨森1
1. 东南大学 土木工程学院,江苏 南京 210096；2. 东南大学 混凝土及预应力混凝土结构教育部重点实验室,江苏 南京 210096
Structural measures and experimental study of precast concrete joints of anchored prestressing strands in frames
GUAN Dong zhi1,2, GUO Zheng xing1,2, YU Jian bing1, YANG Sen1
1. School of Civil Engineering, Southeast University, Nanjing 210096, China; 2. The Key Laboratory of C & PC Structures of the Ministry of Education, Southeast University, Nanjing 210096, China
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摘要：

为了解决常见预制混凝土框架节点生产安装难度大的问题,提出钢绞线锚入式新型预制混凝土框架梁柱节点形式.针对构造措施设置概念进行讨论,为了研究其中2个关键构造措施的有效性,开展4个足尺预制节点的低周反复荷载试验.这2个构造措施分别为增设附加直钢筋和预制梁下部架立筋增设无黏结段.结果表明,附加直钢筋能够有效增强钢绞线锚入式新型预制混凝土框架梁柱节点的抗震性能；预制梁下部架立筋局部无黏结段对节点性能影响较小,建议去除该措施；塑性铰外移的构想未能实现,但强柱弱梁设计原则可以保证该节点破坏模式为梁铰破坏.
Abstract:

A new precast concrete joint of anchored prestressing strands was proposed to make contruction of precast beam to column connections easier. Concepts of structural details in the proposed system were discussed. Four full scale cruciform specimens were tested under pseudo static loadings to evaluate two structural details. Those are additional bars and a small unbonded length of two bottom deformed bars in a precast beam. Results show that additional bars can effectively improve overall seismic resistance of the proposed system. A small unbonded length of two bottom deformed bars in a precast beam has little influence on structural performance of test specimens, therefore it can be removed. Making plastic hinge away from the interface between beams and columns does not work by adopting the proposed measures. Strong column weak beam philosophy is effective for the new joint to ensure concentration of main damage at beam ends.
出版日期: 2016-02-01
:  TU 375  
基金资助:

国家“十二五”科技支撑计划资助项目（2011BAJ10B03）.
通讯作者: 郭正兴,男,教授.ORCID: 0000 0003 0394 726x.     E-mail: guozx195608@126.com
作者简介: 管东芝（1989—）,男,博士生,从事预制装配式混凝土结构及预应力钢结构等研究. ORCID: 0000 0002 9898 2668.E-mail: gdzh.js@163.com
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引用本文:

管东芝, 郭正兴, 于建兵, 杨森. 钢绞线锚入式预制砼框架节点构造及试验[J]. 浙江大学学报(工学版), 10.3785/j.issn.1008-973X.2016.02.012.

GUAN Dong zhi, GUO Zheng xing, YU Jian bing, YANG Sen1. Structural measures and experimental study of precast concrete joints of anchored prestressing strands in frames. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 10.3785/j.issn.1008-973X.2016.02.012.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2016.02.012    或    http://www.zjujournals.com/eng/CN/Y2016/V50/I2/282

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