| 引用本文: | 姜绍飞,赵剑,连晟航.螺栓连接装配式剪力墙恢复力模型[J].哈尔滨工业大学学报,2022,54(4):55.DOI:10.11918/202106068 |
| JIANG Shaofei,ZHAO Jian,LIAN Shenghang.Restoring force model for bolted-connection assembled shear wall[J].Journal of Harbin Institute of Technology,2022,54(4):55.DOI:10.11918/202106068 |
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| 摘要: |
| 为提高装配RC剪力墙的施工效率和结构整体性,提出了一种集成钢连接件的螺栓连接装配式剪力墙（bolted-connection assembled shear wall,简称BASW）,包括全装配剪力墙和两端边缘构件现浇的半预制装配剪力墙。设计了1片现浇普通混凝土剪力墙、3片全装配剪力墙以及3片半装配剪力墙,设计参数为装配方式以及剪跨比,并进行了拟静力试验。试验结果表明剪跨比和装配方式对剪力墙抗震性能有较大影响,全装配剪力墙由于连接钢框使墙肢底部破坏面上移,峰值承载力要高于同剪跨比的现浇和半装配剪力墙。结合数值分析,进一步研究了装配率、剪跨比、轴压比、边缘构件配箍率及边缘构件尺寸等参数对模型骨架曲线与滞回性能的影响,建立了新型螺栓连接装配式剪力墙的三折线骨架曲线模型以及恢复力模型。对比发现,本文所提出的恢复力模型与试验曲线吻合较好,能够较好地反映出墙体的滞回性能,可用于该类螺栓连接装配式剪力墙的弹塑性分析。 |
| 关键词: 装配式剪力墙 螺栓连接 拟静力试验 数值模拟 恢复力模型 |
| DOI：10.11918/202106068 |
| 分类号:TU398.2 |
| 文献标识码:A |
| 基金项目:国家十三重点专项课题(2016YFC0700706); 福建省科技计划项目(2017Y4012);中国地震局重点专项(2020EEEVL0402) |
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| Restoring force model for bolted-connection assembled shear wall |
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JIANG Shaofei1,ZHAO Jian1,2,LIAN Shenghang1
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(1.College of Civil Engineering, Fuzhou University, Fuzhou 350108, China; 2.School of Civil Engineering, Fujian University of Technology, Fuzhou 350118, China)
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| Abstract: |
| In order to further improve the construction efficiency and structural integrity of precast reinforced concrete (RC) shear walls, a bolted-connection assembled shear wall (BASW) with integrated steel connection joints was proposed, including fully assembled shear wall and semi-assembled shear wall with cast-in-place edge members at both ends. One piece of the cast-in-place ordinary concrete shear wall, three pieces of the fully assembled shear wall, and three pieces of the semi-assembled shear wall were designed. The comparison parameters were assembly methods and shear-span ratio, and quasi-static tests were carried out. Test results show that the shear-span ratio and assembly methods had significant impact on the seismic performance of the shear wall. Due to the connecting steel frame, the failure surface of the fully assembled shear wall was lifted, and the peak bearing capacity was higher than that of cast-in-place and semi-assembled shear walls with the same shear-span ratio. Combined with numerical analysis, the influences of the parameters such as assembly rate, shear-span ratio, axial compression ratio, edge component hoop ratio, and edge component size on the skeleton lines and hysteretic performance of the specimens were studied. According to the results, the three-fold skeleton line model and restoring force model of the new type BASW were established. It was found that the proposed restoring force model was in good agreement with the test curves, which can reflect the hysteretic performance of the wall. This indicates that the models can be used for the elastoplastic analysis of these types of BASWs. |
| Key words: precast shear wall bolted-connection quasi-static test numerical simulation restoring force model |
