可滑移侧向约束钢板剪力墙受力性能及设计方法研究

发布时间：2018-04-05 10:24

本文选题：钢板剪力墙　切入点：可滑移侧向约束构件　出处：《哈尔滨工业大学》2017年博士论文

【摘要】：钢板剪力墙是一类性能优越的抗震构件。近年来,用其作为结构主要抗侧力构件的多、高层结构不断涌现。但与此同时,传统钢板剪力墙中存在的内嵌钢板过早屈曲,约束构件易失效或不易加工等问题日益突出,限制了其进一步发展。为此本文提出了斜向网格约束和波形钢板约束两类可滑移侧向约束钢板剪力墙,以期在有效提高剪力墙的抗侧性能和大震耗能能力的基础上,防止约束构件因参与抗侧而失效,实现震后修复时仅更换内嵌钢板,而约束构件可重复使用的设计理念。结合理论分析和试验研究方法,重点探讨了这两类剪力墙的受力机理,滞回性能以及设计方法,并提出了用于结构体系分析的简化方法。论文主要完成了如下几方面工作:1、两类可滑移侧向约束钢板剪力墙的提出总结分析了常用各类钢板剪力墙的受力性能及构造特点,针对非加劲钢板剪力墙过早屈曲,加劲钢板剪力墙加劲肋易失效,防屈曲钢板剪力墙约束构件加工周期长等问题,综合板件的稳定理论和可滑移侧向约束的基本概念,提出了斜向网格约束和波形钢板约束两类可滑移侧向约束钢板剪力墙,不仅有效提高了剪力墙的抗震性能,保证了约束构件不因参与抗侧而失效且能重复使用,还实现了各组件的工业化生产和装配式施工。2、两类可滑移侧向约束钢板剪力墙试验研究针对非加劲,斜向网格约束和波形钢板约束钢板剪力墙试件开展了拟静力试验研究,通过分析试件中内嵌钢板的面外变形和应变分布,约束构件的应变发展以及试件的失效模式和滞回性能等试验现象和数据,验证了提出的两类可滑移侧向约束钢板剪力墙的可行性。试验数据还为非加劲和可滑移侧向约束钢板剪力墙精细化数值分析方法和结构体系简化分析方法的提出和验证提供了必要的支持。3、两类可滑移侧向约束钢板剪力墙滞回性能数值分析综合考虑低周往复循环荷载下钢材的非线性强化性能、初始几何缺陷以及约束构件与内嵌钢板间的相互作用等多种影响因素,提出了非加劲和可滑移侧向约束钢板剪力墙的精细化数值分析方法,并通过试验数据验证了其有效性。应用该方法开展了系统的分析计算,深入讨论了两类可滑移侧向约束钢板剪力墙的受力机理,揭示了内嵌钢板高厚比,子板高厚比和长宽比对两类可滑移侧向约束钢板剪力墙滞回性能的影响规律。4、两类可滑移侧向约束钢板剪力墙设计方法及简化模型研究结合非加劲钢板剪力墙承载力计算理论和可滑移侧向约束构件对剪力墙承载力的提高规律,提出了可滑移侧向约束钢板剪力墙承载力的计算方法。针对两类子板单元的几何和物理边界条件,采用能量法分析了其弹性屈曲性能,并以避免子板屈曲早于内嵌钢板屈服为目标,提出了约束构件的布置原则。为确保约束构件可为子板边缘提供足够的面外和转动约束,通过引入无量纲参数肋板刚度比,建立了约束构件刚度与内嵌钢板柱面刚度之间的联系,并采用特征值屈曲分析方法,给出了最小肋板刚度比的限值。基于约束构件与内嵌钢板间相互作用的特征,提出了约束构件所受面外推力的简化计算模型及强度验算方法。依据内嵌钢板中板带的锚固特征对其进行了分类,提出了可考虑内嵌钢板与其边缘构件相互作用且建模简便的拉压杆模型,并基于弹性稳定理论给出了相关模型参数的确定方法;由此建立的结构体系简化分析方法解决了高层钢板剪力墙结构体系分析时由于杆件数量过多而导致的建模过程复杂且计算耗时等问题;结合本文及文献中的试验数据,验证了该简化分析方法的有效性。
[Abstract]:Steel plate shear wall is a kind of seismic component has excellent performance. In recent years, with the structure as the main component to resist lateral force and more high-rise structure emerge. But at the same time, the existence of traditional embedded steel plate early buckling of steel plate shear wall in the constraint component failure or not easy processing problems have become increasingly prominent, limiting its further development. In this paper the oblique grid constraints and constraints of two types of corrugated steel plate can slide lateral restraint of steel plate shear wall, in order to effectively improve the shear wall based on lateral performance and seismic energy dissipation capacity, prevent the restriction of component failure due to participate in the anti side, realize torepair only replace the embedded steel plate design the concept and constraint component reusable. Combined with the theoretical analysis and experimental research methods, discusses the stress mechanism of these two types of shear wall, hysteretic behavior and design method, and put forward for. The simplified method of analysis system. The paper mainly completed the following work: 1, two author summarizes and analyzes the methods of various types of steel plate shear wall mechanical properties and structure characteristics of sliding lateral restraint of steel plate shear wall for non stiffened steel plate shear wall premature buckling of steel plate shear wall, stiffening ribs are prone to failure, the problem of buckling of steel plate shear wall constraint component long processing cycle, the basic concept of comprehensive plate stability theory and sliding parts of lateral restraint, the oblique grid constraints and constraints of two types of corrugated steel plate can slide plate shear wall lateral restraint, can effectively improve the seismic performance of shear wall, the constraint component because in lateral failure and can be reused, but also realize the components of industrial production and assembly construction.2, two kinds of experimental study on shear wall lateral restraint plate reinforcement for non slip, oblique To the grid constraints and constraints of corrugated steel plate shear wall specimens were carried out research on quasi static test, through the analysis of specimens embedded in steel plate out of plane deformation and strain distribution, strain constraint component development as well as the specimen failure mode and hysteretic behavior of the experimental phenomena and data, verify the proposed two types of slip the lateral confinement of steel plate shear wall. The feasibility of test data for unstiffened and numerical sliding lateral confinement of steel plate shear wall with fine structure system analysis method and simplified analysis and put forward to provide the necessary support for.3 verification method, two kinds of sliding plate shear wall lateral constraint hysteretic performance considering the nonlinear numerical analysis of low cycle reciprocating under cyclic loading steel strengthening performance factors of initial geometric imperfection and constraint component and embedded steel plate interactions such as influence, proposed non slip and stiffening Fine numerical analysis method of shear wall lateral restraint plate, and its effectiveness is verified by experimental data. The application of this method to carry out the system analysis and calculation, the stress mechanism of two kinds of sliding lateral restraint of steel plate shear wall is discussed in depth, revealing the embedded steel plate height to thickness ratio, plate height to thickness ratio and length width comparison of two kinds of steel plate shear wall lateral restraint slip hysteretic properties of.4, two kinds of shear wall lateral restraint plate sliding design method and simplified model based on non stiffened steel plate shear wall calculation theory and law can improve the bearing capacity of lateral slip constraint component of shear wall bearing capacity, put forward the calculation method for shear the wall plate lateral restraint slip capacity. The geometric and physical boundary conditions for the two sub units, using the method of energy analysis of the elastic buckling behavior, and to avoid buckling in fender The embedded steel yield as the goal, put forward the layout principle of constraint component. In order to ensure that the constraint component can provide enough surface and rotational restraint for the plate edge, through the introduction of dimensionless parameters, stiffness ratio of stiffener, a constraint stiffness and stiffness of cylindrical embedded steel plate connection, and the eigenvalue buckling analysis method the minimum value, the stiffness ratio of stiffener to the limit are given. The characteristics of interaction between binding component and embedded steel plate based on the proposed constraint component by simplified plane thrust calculation model and strength calculation method. According to anchoring characteristics of strip embedded steel plate has carried on the classification is put forward and the embedded steel plate the edge component interaction and modeling simple STM and based on the method of determining the elastic stability theory gives the relevant model parameters; simplified analysis method based on the solution structure The problem of complex modeling process and time-consuming due to the excessive number of members in high-rise steel plate shear wall structure system analysis is determined. Combined with the experimental data in this paper and literature, the effectiveness of the simplified analysis method is verified.

【学位授予单位】：哈尔滨工业大学
【学位级别】：博士
【学位授予年份】：2017
【分类号】：TU398.2

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