带窗下墙的预制混凝土剪力墙结构抗震性能研究
发布时间：2019-07-04 21:18
【摘要】：鉴于预制装配式混凝土剪力墙结构制作工艺的不同,门窗洞口处的窗下墙不再是传统意义上的非结构构件,而是作为结构构件参与受力。深入研究带窗下墙的预制装配式混凝土剪力墙结构的受力性能及其破坏模式,对评价该类结构的抗震性能具有重要意义。针对上述研究需求,本文开展了带窗下墙的预制剪力墙结构的抗震性能试验研究,在此基础上提出了适用于该类结构的精细有限元数值模拟方法,揭示了该类高层结构的地震损伤机理,并对该类结构的设计方法进行了初步探究。主要成果如下:(1)基于分层壳单元建立了7片灌浆套筒预制剪力墙试件的精细化有限元模型,模拟结果与试验结果整体吻合良好,验证了该精细化有限元模型的合理性和准确性。说明采用等同现浇的方法能够较好的模拟灌浆套筒预制剪力墙的受力特性。(2)进行了两个带不同高度窗下墙的两层预制剪力墙试件的低周反复试验,提出并验证了适用于该类构件的精细有限元数值模拟方法。试验和数值模拟分析结果表明,窗下墙与连梁间水平拼缝脱开,形成两根并列布置的双连梁,该类构件呈现出明显“双连梁”受力特性。预制窗下墙显著提高了该类构件的刚度、承载力和耗能能力。(3)以一7度区高层预制混凝土剪力墙结构作为基本研究对象,建立了该结构的精细有限元模型,研究了无窗下墙、矮窗下墙和高窗下墙对预制混凝土剪力墙整体结构抗震性能的影响。分析结果表明,预制窗下墙能够显著提高结构的整体耗能能力,有效减小结构层间位移角,控制结构损伤,对于高层预制剪力墙结构有必要考虑窗下墙的有利贡献。(4)初步探究了带窗下墙的预制混凝土剪力墙结构的设计方法。以相近的抗震性能为目标,对基本研究对象进行了重新设计,结果表明考虑窗下墙贡献,可有效减小该类结构墙体厚度,节省用料,降低造价。
文内图片：
图片说明：GDPS套筒
[Abstract]:In view of the different fabrication technology of prefabricated concrete shear wall structure, the wall under the window at the entrance of door and window is no longer a non-structural member in the traditional sense, but participates in the force as a structural member. It is of great significance to study the mechanical behavior and failure mode of prefabricated concrete shear wall structure with windows in order to evaluate the seismic performance of this kind of structure. In order to meet the above research requirements, the experimental study on seismic performance of precast shear wall structures with windows is carried out in this paper. on this basis, a fine finite element numerical simulation method suitable for this kind of structures is proposed, the seismic damage mechanism of this kind of high-rise structures is revealed, and the design method of this kind of structures is preliminarily explored. The main results are as follows: (1) based on the layered shell element, the fine finite element model of seven precast shear wall specimens with grouting sleeve is established, and the simulation results are in good agreement with the experimental results as a whole, which verifies the rationality and accuracy of the fine finite element model. It is shown that the equivalent cast-in-place method can be used to simulate the mechanical characteristics of the precast shear wall with grouting sleeve. (2) the low cycle repeated tests of two-story precast shear wall specimens with different height windows are carried out, and the fine finite element numerical simulation method suitable for this kind of members is proposed and verified. The results of test and numerical simulation show that the horizontal joint between the wall under the window and the connecting beam is separated and two parallel double beams are formed, and this kind of members show obvious stress characteristics of "double connecting beams". The stiffness, bearing capacity and energy consumption capacity of this kind of members are significantly improved. (3) taking the high-rise precast concrete shear wall structure in a 7 degree area as the basic research object, the fine finite element model of the structure is established, and the influence of the wall without window, the wall under the low window and the wall under the high window on the seismic performance of the whole structure of the precast concrete shear wall is studied. The analysis results show that the prefabricated wall under the window can significantly improve the overall energy consumption capacity of the structure, effectively reduce the displacement angle between the layers of the structure, and control the structural damage. It is necessary to consider the favorable contribution of the wall under the window for the high-rise precast shear wall structure. (4) the design method of the precast concrete shear wall structure with the wall under the window is preliminarily explored. Aiming at the similar seismic performance, the basic research object is redesigned. The results show that considering the contribution of the wall under the window, the wall thickness of this kind of structure can be effectively reduced, the material can be saved and the cost can be reduced.
【学位授予单位】：合肥工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU352.11;TU398.2
本文编号：2510238
文内图片：
图片说明：GDPS套筒
[Abstract]:In view of the different fabrication technology of prefabricated concrete shear wall structure, the wall under the window at the entrance of door and window is no longer a non-structural member in the traditional sense, but participates in the force as a structural member. It is of great significance to study the mechanical behavior and failure mode of prefabricated concrete shear wall structure with windows in order to evaluate the seismic performance of this kind of structure. In order to meet the above research requirements, the experimental study on seismic performance of precast shear wall structures with windows is carried out in this paper. on this basis, a fine finite element numerical simulation method suitable for this kind of structures is proposed, the seismic damage mechanism of this kind of high-rise structures is revealed, and the design method of this kind of structures is preliminarily explored. The main results are as follows: (1) based on the layered shell element, the fine finite element model of seven precast shear wall specimens with grouting sleeve is established, and the simulation results are in good agreement with the experimental results as a whole, which verifies the rationality and accuracy of the fine finite element model. It is shown that the equivalent cast-in-place method can be used to simulate the mechanical characteristics of the precast shear wall with grouting sleeve. (2) the low cycle repeated tests of two-story precast shear wall specimens with different height windows are carried out, and the fine finite element numerical simulation method suitable for this kind of members is proposed and verified. The results of test and numerical simulation show that the horizontal joint between the wall under the window and the connecting beam is separated and two parallel double beams are formed, and this kind of members show obvious stress characteristics of "double connecting beams". The stiffness, bearing capacity and energy consumption capacity of this kind of members are significantly improved. (3) taking the high-rise precast concrete shear wall structure in a 7 degree area as the basic research object, the fine finite element model of the structure is established, and the influence of the wall without window, the wall under the low window and the wall under the high window on the seismic performance of the whole structure of the precast concrete shear wall is studied. The analysis results show that the prefabricated wall under the window can significantly improve the overall energy consumption capacity of the structure, effectively reduce the displacement angle between the layers of the structure, and control the structural damage. It is necessary to consider the favorable contribution of the wall under the window for the high-rise precast shear wall structure. (4) the design method of the precast concrete shear wall structure with the wall under the window is preliminarily explored. Aiming at the similar seismic performance, the basic research object is redesigned. The results show that considering the contribution of the wall under the window, the wall thickness of this kind of structure can be effectively reduced, the material can be saved and the cost can be reduced.
【学位授予单位】：合肥工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU352.11;TU398.2
【参考文献】
相关期刊论文 前10条
1 薛建阳;胡宗波;刘祖强;;型钢混凝土异形柱空间框架结构模型振动台试验研究[J];建筑结构学报;2017年02期
2 郑永峰;郭正兴;;循环荷载作用下新型钢筋套筒灌浆连接结构性能[J];湖南大学学报(自然科学版);2016年11期
3 初明进;刘继良;侯建群;刘木禾;王刚;邱光明;;无界面钢筋的叠合板式剪力墙受力性能试验研究[J];建筑结构学报;2016年10期
4 李宁波;钱稼茹;刘时伟;赵作周;叶列平;;部分竖向分布钢筋套筒挤压连接的预制剪力墙抗震性能试验研究[J];土木工程学报;2016年07期
5 鲁亮;李鸿;刘霞;吕西林;;梁端铰型受控摇摆式钢筋混凝土框架抗震性能振动台试验研究[J];建筑结构学报;2016年03期
6 孙建;邱洪兴;谭志成;杨原;;螺栓连接全装配式一字形RC剪力墙受力性能试验研究[J];建筑结构学报;2016年03期
7 李正良;徐姝亚;刘红军;焦安亮;;新型装配式钢管混凝土柱-钢筋混凝土梁框撑体系振动台试验研究[J];土木工程学报;2016年02期
8 余志武;彭晓丹;国巍;彭妙培;;装配式剪力墙结构中U型套箍钢筋连接的锚固性能研究[J];铁道科学与工程学报;2015年04期
9 余志武;彭晓丹;国巍;彭妙培;;装配式剪力墙U型套箍连接节点抗震性能[J];浙江大学学报(工学版);2015年05期
10 朱张峰;郭正兴;;装配式混凝土剪力墙结构空间模型抗震性能试验[J];工程力学;2015年04期
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