PCF-MDC体系技术方案及抗震性能试验研究

吴从晓; 李定斌; 张骞; 吴从永; 邓雪松

doi:10.6052/j.issn.1000-4750.2019.06.0300

PCF-MDC体系技术方案及抗震性能试验研究

1.
广州大学土木工程学院, 广州 510006;
2.
广东技术师范大学天河学院, 广州 510540

基金项目: 国家重点研发计划项目（2017YFC0703600）；广东省自然科学基金项目（2018A030313027）；广东省高校特色创新项目（2018KTSCX338）

详细信息

作者简介:
吴从晓(1981-),男,江西九江人,副教授,博士,主要从事结构抗震与消能减震技术研究(E-mail:wu-congxiao@163.com);张骞(1993-),男,内蒙古乌兰察布人,硕士生,主要从事结构抗震与消能减震技术研究(E-mail:583089018@qq.com);吴从永(1962-),男,江西九江人,高工,学士,主要从事结构设计及分析研究(E-mail:315427965@qq.com);邓雪松(1967-),女,黑龙江阿城人,教授,硕士,主要从事高层结构抗震研究(E-mail:deng2593@163.com).

通讯作者:
李定斌(1993-),男,河南洛阳人,博士生,主要从事结构抗震与消能减震技术研究(E-mail:li-dingbin@e.gzhu.edu.cn).

中图分类号: TU375.4;TU352.11
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出版历程
- 收稿日期: 2019-06-03
- 修回日期: 2019-09-25
- 刊出日期: 2020-04-13

TECHNICAL SOLUTION AND SEISMIC PERFORMANCE TEST OF PCF-MDC SYSTEM

1.
School of Civil Engineering, Guangzhou University, Guangzhou 510006, China;
2.
Tianhe College, Guangdong Polytechnic Normal University, Guangzhou 510540, China

摘要

摘要: 围绕预制装配式混凝土框架金属消能减震连接体系（PCF-MDC）的关键技术问题，提出2种金属阻尼器、1套可拆卸型连接方案和金属阻尼器设计方法。为验证阻尼器设计方法及连接方案的可行性并研究该体系的抗震性能，设计并制作了“等同现浇”的“湿”框架（PCF）节点、采用狗骨阻尼器（PCF-DB）和双弯曲板阻尼器（PCF-DP）的PCF-MDC节点。通过拟静力试验，对比其破坏形态、滞回性能、承载性能、耗能特性等差异。试验结果表明：PCF-MDC节点的承载力均达到预期设计值，采用双弯曲板阻尼器的PCF-DP节点承载性能更优，安全储备更足；PCF-MDC节点的耗能特性和抗震性能优于“等同现浇”的PCF节点；连接方案能可靠的传递金属阻尼器与预制构件间的内力。金属阻尼器先于预制构件屈服形成的梁铰耗能机制合理有效，且具备“集中损伤”特性，为震后更换阻尼器实现结构功能恢复提供了有利条件。
- 预制装配式混凝土框架 /
- 金属阻尼器 /
- 连接方案 /
- 抗震性能 /
- 拟静力试验
Abstract: For the key technical problems of the precast concrete frame using metal damper connector (PCF-MDC), two metal dampers, a set of detachable connection scheme and the design method of metal damper are proposed. In order to verify their feasibility and study the seismic performance of the system, a "wet" frame joint (PCF specimen) that is equivalent to cast-in-place joint and two PCF-MDC joints using dog bone damper (PCF-DB specimen) and double bending plate damper (PCF-DP specimen) were designed and fabricated, respectively. The failure mode, hysteretic performance, bearing capacity and energy dissipation characteristic were investigated by quasi-static test. The test results show that the bearing capacity of the PCF-MDC joints has reached expected design value, and the bearing capacicy of PCF-DP specimen is better compared with PCF-DB specimen. The energy dissipation characteristic and seismic performance of PCF-MDC joints is better than those of "equivalent cast-in-place" PCF joint. The connection scheme proposed can reliably transfer the internal force between the metal damper and the precast member. The energy-dissipation mechanism that plastic hinge is formed by the yielding of metal damper at the beam end is reasonable and effective. It has the characteristic of "concentrated damage", which is of benefit to the restoration of building function by replacing the damaged damper after earthquake.
- precast concrete frame /
- metal damper /
- connection scheme /
- seismic performance /
- quasi-static test

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参考文献(28)

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文章访问数: 548
HTML全文浏览量: 81
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被引次数: 17

PCF-MDC体系技术方案及抗震性能试验研究

通讯作者: 李定斌(1993-),男,河南洛阳人,博士生,主要从事结构抗震与消能减震技术研究(E-mail:li-dingbin@e.gzhu.edu.cn).

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出版历程

TECHNICAL SOLUTION AND SEISMIC PERFORMANCE TEST OF PCF-MDC SYSTEM

期刊类型引用(10)

其他类型引用(7)

计量

出版历程

目录

通讯作者:
李定斌(1993-),男,河南洛阳人,博士生,主要从事结构抗震与消能减震技术研究(E-mail:li-dingbin@e.gzhu.edu.cn).