种迅, 郭宇菲, 沙慧玲, 黄俊旗, 乐腾胜, 魏建鹏. 基础隔震-外挂墙板减震钢筋混凝土框架振动台试验研究[J]. 工程力学, 2024, 41(7): 176-185. DOI: 10.6052/j.issn.1000-4750.2022.06.0511
引用本文: 种迅, 郭宇菲, 沙慧玲, 黄俊旗, 乐腾胜, 魏建鹏. 基础隔震-外挂墙板减震钢筋混凝土框架振动台试验研究[J]. 工程力学, 2024, 41(7): 176-185. DOI: 10.6052/j.issn.1000-4750.2022.06.0511
CHONG Xun, GUO Yu-fei, SHA Hui-ling, HUANG Jun-qi, YUE Teng-sheng, WEI Jian-peng. SHAKING TABLE TEST OF REINFORCED CONCRETE FRAME STRUCTURE WITH BASE SEISMIC ISOLATION-ENERGY DISSIPATIVE CLADDING PANEL HYBRID CONTROL[J]. Engineering Mechanics, 2024, 41(7): 176-185. DOI: 10.6052/j.issn.1000-4750.2022.06.0511
Citation: CHONG Xun, GUO Yu-fei, SHA Hui-ling, HUANG Jun-qi, YUE Teng-sheng, WEI Jian-peng. SHAKING TABLE TEST OF REINFORCED CONCRETE FRAME STRUCTURE WITH BASE SEISMIC ISOLATION-ENERGY DISSIPATIVE CLADDING PANEL HYBRID CONTROL[J]. Engineering Mechanics, 2024, 41(7): 176-185. DOI: 10.6052/j.issn.1000-4750.2022.06.0511

基础隔震-外挂墙板减震钢筋混凝土框架振动台试验研究

SHAKING TABLE TEST OF REINFORCED CONCRETE FRAME STRUCTURE WITH BASE SEISMIC ISOLATION-ENERGY DISSIPATIVE CLADDING PANEL HYBRID CONTROL

  • 摘要: 该文提出一种新型的基础隔震-外挂墙板减震混合控制结构(简称“隔震-减震结构”)。该结构采用铅芯橡胶隔震支座作为基础隔震装置,上部结构则采用外挂墙板与U型金属消能器联合构成减震系统。通过减震与隔震混合控制,实现主体结构和围护墙体在罕遇地震下不发生损伤,可用于对韧性性能要求较高的生命线工程中。为对比研究隔震-减震结构与传统隔震结构的抗震性能,设计制作了一个在两方向上完全一致的1/2缩尺基础隔震钢筋混凝土框架结构,并在Y方向附加外挂墙板和U型金属消能器,形成隔震-减震结构,X方向不含外挂墙板,为隔震结构。分别在两个方向输入单向地震动进行振动台试验,试验结果表明:相比隔震结构,隔震-减震结构能进一步降低结构在设防和罕遇地震下的位移响应;隔震-减震结构在罕遇地震下最大层间位移角小于或接近钢筋混凝土框架结构弹性层间位移角限值,主体结构保持弹性,外挂墙板未出现损伤,可以实现预期的性能目标。

     

    Abstract: A novel base seismic isolation-energy dissipative cladding panel (EDCP) hybrid control structure is proposed. In this structure, the lead rubber bearings (LRBs) are adopted as the base isolation devices, and EDCPs composed of cladding panels and U-shaped steel dampers (USDs) are arranged in the superstructure. This hybrid control method aims to realize the damage-free objective of main structure as well as non-structural cladding panels under the maximum considered earthquake, which can be used in important lifeline projects where high resilience is required. To compare the seismic performance of hybrid control structure and base isolation structure, a 1/2-scale reinforced concrete frame structure was designed and fabricated, which was exactly the same in the two directions. EDCPs were only equipped in the Y-direction, which led to a hybrid control structure; while it was a counterpart base isolation structure in the X-direction. Shaking table tests were conducted by inputting uniaxial ground motions in the two directions. The test results indicated that compared to the isolation control structure, the hybrid control structure can further reduce the displacement response of the superstructure under the design based and maximum considered earthquakes. The maximum inter-story drift of the hybrid control structure under the maximum considered earthquake was less than or close to the elastic inter-story drift limit of the reinforced concrete frame structure, and the main structure remained elastic and no damage occurred to the cladding panel, so that the desired performance objectives can be achieved.

     

/

返回文章
返回