M型钢-混凝土组合剪力墙抗震性能有限元分析

引用文献:

张国伟 安佳宁 高海智 乔东需. M型钢-混凝土组合剪力墙抗震性能有限元分析[J]. 建筑结构,2023,48(03):21-26,63.

ZHANG Guowei AN Jianing GAO Haizhi QIAO Dongxu. Finite element analysis on seismic performance of M-section steel-concrete composite shear wall[J]. Building Structure,2023,48(03):21-26,63.

作者:张国伟 安佳宁 高海智 乔东需
单位:北京建筑大学大型多功能振动台阵实验室 北京建筑大学工程结构与新材料北京高等学校工程研究中心
摘要:为避免小剪跨比剪力墙在地震下发生脆性剪切破坏,提出一种M型钢-混凝土组合剪力墙,采用M型钢作为剪力墙竖向分布钢筋,具有整体性能好、抗扭刚度大、施工效率高等特点,在大震下呈现分缝受力的破坏模式,表现出良好的抗震性能。采用ABAQUS有限元软件对M型钢-混凝土组合墙体进行非线性拟静力分析,研究不同免拆模板类型、轴压比、水平钢筋配筋率对墙体的抗震性能的影响,对墙体的塑性损伤分布情况进行对比分析。结果表明:有限元模拟结果与试验结果吻合程度良好,墙体混凝土损伤呈两阶段分布。M型钢-混凝土组合墙体具有较大的承载力和抗侧刚度,免拆模板类型对墙体抗震性能影响不大,降低水平钢筋配筋率会使墙体承载力显著下降,加速刚度衰减,延性和耗能能力显著增强,减小轴压比会降低墙体承载力,但延性系数有所提高。
关键词:M型钢;组合墙体;抗震性能;配筋率;轴压比;塑性损伤;
作者简介:张国伟,博士,教授,硕士生导师,主要从事工程结构抗震及减震技术、装配式混凝土结构、结构检测与加固等研究,Email:zhangguowei@bucea.edu.cn。高海智,硕士研究生,主要从事装配式混凝土结构研究,Email:ghz876370068@163.com。
基金:
尊敬的用户,本篇文章需要2元,点击支付交费后阅读
参考文献[1] SHAMIM I,ROGERS C A.Steel sheathed/CFS framed shear walls under dynamic loading:numerical modelling and calibration[J].Thin-Walled Structures,2013,71:57-71.
[2] DABREO J,BALH N,ONG-TONE C,et al.Steel sheathed cold-formed steel framed shear walls subjected to lateral and gravity loading[J].Thin-Walled Structures,2014,74:232-245.
[3] 初明进,冯鹏,叶列平.冷弯薄壁型钢混凝土剪力墙受剪承载力计算模型[J].建筑结构学报,2011,32(9):107-114.
[4] 初明进,张庆池,刘继良,等.配置不同水平钢筋的自适应分缝剪力墙受剪性能试验研究[J].工程力学,2018,35(2):214-220.
[5] 冯鹏,初明进,叶列平,等.冷弯薄壁型钢混凝土剪力墙受剪性能试验研究[J].建筑结构学报,2010,31(11):83-91.
[6] 初明进,冯鹏,叶列平,等.不同构造措施的冷弯薄壁型钢混凝土剪力墙抗剪性能试验研究[J].工程力学,2011,28(8):45-55.
[7] 伍云天,唐欢,林雪斌,等.内置冷弯薄壁型钢桁架高强混凝土剪力墙抗震性能试验研究[J].建筑结构学报,2014,35(11):44-52.
[8] 闫维明,赵锦成,谢志强,等.基于锁铆连接的冷弯薄壁型钢开洞组合墙体抗震性能试验研究[J].北京工业大学学报,2019,45(8):754-762.
[9] 李国华,王权,董军,等.冷弯薄壁型钢轻混凝土组合墙体抗弯性能有限元分析[J].沈阳建筑大学学报(自然科学版),2021,37(2):218-226.
[10] 乔东需.M型型钢组合墙体抗震性能试验研究[D].北京:北京建筑大学,2020.
[11] 混凝土结构设计规范:GB 50010—2010[S].北京:中国建筑工业出版社,2011.
[12] 方自虎,周海俊,赖少颖,等.ABAQUS混凝土应力-应变关系选择[J].建筑结构,2013,43(S2):559-561.
[13] 刘巍,徐明,陈忠范.ABAQUS混凝土损伤塑性模型参数标定及验证[J].工业建筑,2014,44(S1):167-171,213.
[14] 王强,路炯,侯康康,等.用于剪力墙滞回性能分析的材料本构模型研究[J].沈阳建筑大学学报(自然科学版),2018,34(3):402-409.
[15] 方自虎,甄翌,李向鹏.钢筋混凝土结构的钢筋滞回模型[J].武汉大学学报(工学版),2018,51(7):613-619.
Finite element analysis on seismic performance of M-section steel-concrete composite shear wall
ZHANG Guowei AN Jianing GAO Haizhi QIAO Dongxu
(Multi-Functional Shaking Tables Laboratory, Beijing University of Civil Engineering and Architecture Beijing Higher Institution Engineering Research Center of Civil Engineering Structure and Renewable Material, Beijing University of Civil Engineering and Architecture)
Abstract: In order to avoid brittle shear failure of small shearing-span ratio shear walls under earthquakes, an M-section steel-concrete composite shear wall was proposed. The structure uses M-section steel as the vertical distribution steel bars of the shear wall, which has the characteristics of good overall performance, high torsional rigidity and high construction efficiency. It presents a fracture mode of joint stress under large earthquake, showing good seismic performance. The nonlinear pseudo-static analysis of M-section steel-concrete composite wall was done by finite element analysis software ABAQUS. The effects of different types of non-demolition formwork, axial compression ratio and horizontal steel reinforcement ratio on the seismic performance of the shear walls were studied. The damage distribution of shear walls was compared and analyzed. The results show that finite element software analysis results can simulate the test results accurately, the damage of concrete is distributed in two stages of wall. The M-section steel composite walls has greater bearing capacity and lateral rigidity. The type of non-dismantling formwork has little effect on seismic performance of the wall. The bearing capacity of the wall will decrease significantly if the horizontal reinforcement ratio is reduced, the stiffness degradation is relatively accelerated, the ductility and energy dissipation capacity are significantly enhanced. Reducing the axial compression ratio will reduce bearing capacity of the wall, but the ductility coefficient will increase.
Keywords: M-section steel; composite wall; seismic performance; reinforcement ratio; axial compression ratio; plastic damage
600 0 0
文字:     A-     A+     默认 取消