钢筋混凝土网格框架节能结构体系抗震性能研究-结构工程专业论文.docxVIP

河北工业大学硕士学位论文 钢筋混凝土网格框架节能结构体系 抗震性能研究 摘要 网格框架节能结构体系是一种高强、轻质、抗震、节能的建筑结构新型体系，在前期 的研究工作中，已经取了不少的科研成果。然而，作为一种新型结构体系仍有很多的问题 需要进行进一步的研究与完善。本文对网格框架节能结构体系的主要受力构件——网格框 架剪力墙为主要研究对象，就其受力机理、破坏模式、抗震性能等进行了较为详细的研究， 本文主要完成工作有： 1、通过对高宽比为 0.69、1.1 和 2.75 的三种网格框架剪力墙在水平低周反复荷载作用 下的试验研究，提出了墙体的主要破坏模式；探讨了不同破坏模式情况下墙体的承载能力、 刚度、变形、延性、耗能等抗震性能。 2、通过对网格框架剪力墙进行非线性有限元分析，模拟试验构件内力和变形发展的 全过程，描述裂缝的形成和扩展以及墙体的破坏过程、破坏形态和极限承载力，并与试验 结果及现象进行对比，确立数值模拟的可行性。 3、由于试验研究的局限性，利用有限元分析模型进一步分析混凝土强度等级、轴压 比、翼缘等对墙体抗震性能的影响。从而更加全面的探讨影响墙体的承载能力、刚度、变 形、延性、耗能等抗震性能的因素。 关键词：网格框架；破坏形态；耗能能力；抗震性能；裂缝发展 i 钢筋混凝土网格框架节能结构体系抗震性能研究 STUDY ON THE R. C. GRID FRAME STRUCTURE WITH ASEISMIC PERFORMANCE OF INSULATING FORM ABSTRACT Grid frame structure is a kind of light weight, high strength, Seismic intensity, energy-saving architecture new system，In the research, we have taken a lot of research results. However, as a kind of new-style structure still has many problems needs further research and improvement. Based on the energy structure, main stress components of system framework of grid - mesh frame shear wall as the main research object. The loading mechanism, failure mode, the seismic performance, makes a detailed study of the work, this paper mainly include: Through the ratio of high to width is 0.69, 1.1 and three mesh frame shear wall in low cyclic loading experiment research, put forward the main failure modes and explore the different situations of bad mode capacity and stiffness of the wall deformation, ductility and energy consumption, etc. Through the grid frame shear wall are nonlinear finite element analysis and simulation experiment of internal force and deformation of structures, developing the process of formation and extension of cracks and the failure process of wall, failure pattern and the ultimate bearing capacity, and compared with the experiment data, establish the phenomenon of the feasibility of the simulation data. According to the limitations of the research, using finite element analysis model for further