RESEARCH ON THE PERFORMANCE OF PRESTRESSED PREFABRICATED CONCRETE FRAME CONNECTION STRENGTHENED BY ENERGY DISSIPATERS
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摘要: 基于已经开展的新型耗能杆增强预应力装配式混凝土框架节点试验建立了OpenSees分析模型。首先,通过数值分析结果与试验结果对比,表明有限元模型能够准确地反映节点承载能力和自复位特性。其次,随着附加耗能杆所用材料的屈服点的增加,新型耗能杆增强预应力装配式混凝土框架节点的承载力与耗能能力增加,具有较低屈服点的耗能杆能够较早地为预应力装配式混凝土框架节点提供耗能能力;最后,与采用附加软钢耗能杆的预应力装配式混凝土框架节点相比,当采用铝合金耗能杆时,虽然节点的承载力基本保持相同,但是节点的刚度和屈服点明显降低。Abstract: The numerical model in OpenSees was established based on the previous research on the new prestressed prefabricated concrete frame connection strengthened by energy dissipaters. Firstly, the numerical results were compared with experimental results, which demonstrated that the proposed numerical model could simulate the bearing capacity and self-centering characteristics of the connection well. Secondly, the bearing capacity and energy dissipation capacity of the new prestressed prefabricated concrete frame connection were found to increase with the increase of the yield stress of energy dissipater, but the prestressed prefabricated concrete frame connection with energy dissipaters with lower yield stress could dissipate the energy earlier. Finally, compared with the prestressed prefabricated concrete frame connection installed with mild steel dampers, the prestressed prefabricated concrete frame connection installed with aluminum alloy dampers sustained similar bearing capacity but had lower connection's stiffness and yielding force.
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Key words:
- prefabricated concrete /
- self-centering /
- energy dissipater /
- mild steel /
- aluminum alloy
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王俊,赵基达,胡宗羽.我国建筑工业化发展现状与思考[J].土木工程学报, 2016, 49(5):1-8. ZHAO B, TAUCER F, ROSSETTO T. Field Investigation on the Performance of Building Structures During the 12 May 2008 Wenchuan Earthquake in China[J]. Engineering Structures, 2009, 31(8):1707-1723. 吴刚,冯德成.装配式混凝土框架节点基本性能研究进展[J].建筑结构学报, 2018, 39(2):1-16. PRIESTLEY M N. Overview of PRESSS Research Program[J]. PCI Journal, 1991, 36(4):50-57. MENG S, CHONG X, ZHANG L, et al. Research on Seismic Performance of Precast Prestressed Concrete Frame[C]//ISISS 2005:Innovation&Sustainability of Structures. 2005:457-465. 蔡小宁,孟少平,孙巍巍.自复位预制框架边节点抗震性能试验研究[J].土木工程学报, 2012, 45(12):29-37. 郭彤,宋良龙,张国栋,等.腹板摩擦式自定心预应力混凝土框架梁柱节点的试验研究[J].土木工程学报, 2012, 45(6):23-32. WANG C L, LIU Y, ZHOU L. Experimental and Numerical Studies on Hysteretic Behavior of All-Steel Bamboo-Shaped Energy Dissipaters[J]. Engineering Structures, 2018, 165:38-49. WANG C L, LIU Y, ZHENG X, et al. Experimental Investigation of a Precast Concrete Connection with All-Steel Bamboo-Shaped Energy Dissipaters[J]. Engineering Structures, 2019, 178:298-308. 施刚,高阳,王珣,等.低屈服点钢低周疲劳性能研究[J].土木工程学报, 2019, 52(1):20-26,52. WANG C L, LIU Y, ZHOU L, et al. Concept and Performance Testing of an Aluminum Alloy Bamboo-Shaped Energy Dissipater[J]. The Structural Design of Tall and Special Buildings, 2018, 27(4).DOI: 10.1002/tal.1444. 期刊类型引用(9)
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