[1]黄海,龚良勇,胡淑军,等.一种新型全装配式混凝土梁柱-钢支撑组合节点的抗震性能研究[J].地震工程与工程振动,2021,41(03):198-209.[doi:10.13197/j.eeev.2021.03.198.huangh.020]
 HUANG Hai,GONG Liangyong,HU Shujun,et al.Seismic performance analysis for an innovative precast concrete beam and column-to-steel brace composite joint[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2021,41(03):198-209.[doi:10.13197/j.eeev.2021.03.198.huangh.020]
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一种新型全装配式混凝土梁柱-钢支撑组合节点的抗震性能研究
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《地震工程与工程振动》[ISSN:/CN:]

卷:
41
期数:
2021年03
页码:
198-209
栏目:
论文
出版日期:
2021-06-30

文章信息/Info

Title:
Seismic performance analysis for an innovative precast concrete beam and column-to-steel brace composite joint
作者:
黄海1 龚良勇2 胡淑军12 郭琪1 熊进刚1
1. 南昌大学 建筑工程学院, 江西 南昌 330031;
2. 中恒建设集团有限公司, 江西 南昌 330031
Author(s):
HUANG Hai1 GONG Liangyong2 HU Shujun12 GUO Qi1 XIONG Jingang1
1. School of Civil Engineering and Architecture, Nanchang University, Nanchang 330031, China;
2. Zhongheng Constructuion Group Co., Ltd., Nanchang 330031, China
关键词:
全装配式混凝土框架结构Y形偏心钢支撑组合节点抗剪连接键抗震性能
Keywords:
prefabricated concrete frameY shaped eccentrically bracecomposite jointshear connectorseismic performance
分类号:
TU391
DOI:
10.13197/j.eeev.2021.03.198.huangh.020
摘要:
提出一种新型全装配式混凝土梁柱-钢支撑组合节点,是实现装配式混凝土框架-Y形偏心钢支撑结构预期抗震性能的关键问题之一。采用校正的有限元方法对5种考虑不同因素的腹板开洞型抗剪连接键进行研究,以得到其受剪承载力和损伤模式。随后对基于合理分析模型、材料参数、单元接触、边界条件与加载方式等分析方法的新型节点研究表明,在不同地震水平往复力作用下,组合节点的滞回曲线表现为弹性,即未进入塑性和耗能。另外,在达到最大负向、正向位移时,抗剪连接键、对穿螺杆和支撑连接板仍处于弹性状态,混凝土损伤值和损伤区域均较小,即该新型组合节点具有高承载力、可全装配、功能可恢复等特点,可满足相应结构对该组合节点的要求。
Abstract:
In this paper, an innovative precast concrete beam and column-to-steel brace composite joint is proposed, so the prefabricated concrete frame-Y shaped eccentrically steel brace structure that combines with shear links and Y shaped eccentrically braces and prefabricated concrete frame can achieve the expected seismic performance and seismic resilience capacity. Four different types of reduced web shear connectors are detail analyzed by using verified numerical method, and the shear capacity and failure mode of shear connectors can be obtained. Then the innovative composite joint with reasonable analytical model, material parameters, element contacts, boundary condition and loading protocol is also studied in detail. The results indicate that the hysteresis curve of composite joint under different earthquake will exhibit elasticity without any plastic yield and energy dissipation. In addition, shear connectors, through high-strength bolts and brace plate are still in elastic state at ultimate load, and little damage area and damage value have occurred in the concrete between shear plate and composite joint. This study also clearly identifies that the proposed composite joint will have the advantage of high bearing capacity, ease in installation and seismic resilience capacity, which can meet the higher seismic design goals of the innovative structure.

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相似文献/References:

[1]赵宝成,于安林,蒋思成,等.Y形偏心钢支撑RC框架结构滞回性能试验研究[J].地震工程与工程振动,2013,33(01):047.
 ZHAO Baocheng,YU Anlin,JIANG Sicheng,et al.Experimental investigation of Y-eccentrically steel braced RC frames energy-dissipation[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2013,33(03):047.

备注/Memo

备注/Memo:
收稿日期:2020-06-16;改回日期:2020-10-14。
基金项目:国家自然科学基金项目(51768044,51908268);江西省博士后科研择优资助项目(2019KY57);江西省研究生创新专项资金项目(YC2020-S124)
作者简介:黄海(1996-),男,硕士研究生,主要从事装配式结构抗震性能方面研究.E-mail:1298687306@qq.com
通讯作者:胡淑军(1985-),男,副教授,博士,主要从事钢结构消能减震技术、装配式结构和结构优化等方面研究.E-mail:hushujun@ncu.edu.cn
更新日期/Last Update: 1900-01-01