[1]党隆基,庞瑞,梁书亭,等.竖向荷载下空心楼盖板柱节点试验研究与计算分析[J].东南大学学报(自然科学版),2018,48(3):478-483.[doi:10.3969/j.issn.1001-0505.2018.03.015]
 Dang Longji,Pang Rui,Liang Shuting,et al.Experimental study and calculation analysis on hollow floor slab-column connection under vertical load[J].Journal of Southeast University (Natural Science Edition),2018,48(3):478-483.[doi:10.3969/j.issn.1001-0505.2018.03.015]
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竖向荷载下空心楼盖板柱节点试验研究与计算分析()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
48
期数:
2018年第3期
页码:
478-483
栏目:
土木工程
出版日期:
2018-05-20

文章信息/Info

Title:
Experimental study and calculation analysis on hollow floor slab-column connection under vertical load
作者:
党隆基1庞瑞2梁书亭1朱筱俊3
1东南大学土木工程学院, 南京 211189; 2河南工业大学土木建筑学院, 郑州 450001; 3东南大学建筑设计研究院有限公司, 南京 210096
Author(s):
Dang Longji1 Pang Rui2 Liang Shuting1 Zhu Xiaojun3
1School of Civil Engineering, Southeast University, Nanjing 211189, China
2School of Civil Engineering and Architecture, Henan University of Technology, Zhengzhou 450001, China
3Architects and Engineers Co., Ltd., Southeast University, Nanjing 210096, China
关键词:
板柱节点 空心楼盖 极限承载力 弯曲破坏 屈服线理论
Keywords:
slab-column connection hollow floor ultimate bearing capacity flexural failure yield line theory
分类号:
TU398.1
DOI:
10.3969/j.issn.1001-0505.2018.03.015
摘要:
为了研究抗冲切元件和板厚对空心楼盖板柱节点受力性能的影响,在柱周围楼盖局部实心和布置暗梁的前提下,对6个节点试件进行竖向荷载作用下的试验研究与计算分析.对比研究了6个试件的破坏机制、承载能力、变形能力和应变分布,基于屈服线理论提出了节点的极限承载力计算方法.结果表明,空心楼盖板柱节点具有冲切破坏和弯曲破坏的双重破坏特征,并以弯曲破坏为主.增加板厚和配置抗冲切元件均可提高节点的极限承载力和刚度.与增加板厚和弯起钢筋相比,配置型钢剪力架对节点极限承载力的提高效果更为明显.节点设计时,可优先选择配置型钢剪力架参与节点抗剪.节点的极限承载力计算方法综合考虑了抗冲切元件、楼板配筋率和空心率的影响,计算值与试验值吻合较好.
Abstract:
In order to study the effects of punching components and thickness on the mechanical behavior of hollow floor slab-column connection(HSC), the experimental study and calculation analysis on six HSCs under vertical load with the local solid around the column and the hidden beam installed in the floor were carried out. The failure mechanism, the bearing capacity, the deformation capacity and the strain distribution of the six HSCs were comparatively studied. The computational methods for the ultimate bearing capacity of HSC were proposed based on the yield line theory. The results show that HSCs have the double failure characteristics including punching shear and flexural failure, and flexural failure is the main failure mode. The increase of the slab thickness and the assemble of punching components can improve the ultimate bearing capacity and the stiffness. The improvement effect of the section steel cross bridging on the ultimate bearing capacity is more obvious than those of the increase of the slab thickness and the bent-up of the bars. During the design of connection, the section steel cross bridging is priority selection for joint shearing. The punching components, the reinforcement ratio and the hollow ratio are comprehensively considered in the computational methods for the ultimate bearing capacity, and the calculated values agree well with the experimental results.

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备注/Memo

备注/Memo:
收稿日期: 2017-10-21.
作者简介: 党隆基(1992—),男,博士生;梁书亭(联系人),男,博士,教授,博士生导师,stliang@seu.edu.cn.
基金项目: 国家自然科学基金资助项目(51778214)、河南省科技攻关项目资助项目(152102210066)、河南省高等学校青年骨干教师资助项目(21420031)、河南工业大学青年骨干教师培育计划资助项目(21420004)、上海市科委课题资助项目(16DZ1201805).
引用本文: 党隆基,庞瑞,梁书亭,等.竖向荷载下空心楼盖板柱节点试验研究与计算分析[J].东南大学学报(自然科学版),2018,48(3):478-483. DOI:10.3969/j.issn.1001-0505.2018.03.015.
更新日期/Last Update: 2018-05-20