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Study on the Seismic Behavior of Ecological Composite Wall with Hole

Author: FanDongFeng
Tutor: FengZhongQi;YaoQianFeng
School: Xi'an University of Architecture and Technology
Course: Disaster Prevention and Reduction Engineering and Protective Engineering
Keywords: Ecological composite wall structure Rural buildings Openings ecological composite wall Seismic performance The lateral stiffness
CLC: TU352.11
Type: Master's thesis
Year: 2010
Downloads: 42
Quote: 1
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Abstract


Ecological composite wall structure is an ecological, energy-saving, shock absorption, new towns and villages residential structure. It is ribbed composite wall structure of the group on the further escalation of inherited good seismic performance of the original structure, with ecological materials adapted to local conditions, the excellent characteristics of energy saving and environmental protection, structural safety, suitability and economy of the unified. By bay fill of plant fibers adobe base block with opening ecological composite wall low cyclic loading tests, to analyze the composite wall openings ecological destruction process and failure mode, and to study the seismic performance, discusses the current wall lateral stiffness of the calculation method, analysis the impact openings ecological composite wall lateral stiffness of the main factors, and proposed a formula of the lateral stiffness can be used for open-hole ecological composite wall. The main contents include: (1) 1/2 scale model on a bay openings ecological composite wall low cycle repeated load test failure process and failure mode analysis wall; study wall bearing capacity, stiffness, deformation , ductility, energy dissipation and seismic performance of ecological composite wall with no openings same size comparison. The study results show that: the ecological composite wall openings in the horizontal and vertical loads together, always in pressure, bending, shear stress state in turn play a role in the wall in the block, rib grid, frame, reflecting the The wall of the three-stage mechanical characteristics of its main failure mode of the shear failure, is a reasonable failure mechanism. Compared with the size of the ecological composite wall with no openings, openings ecological composite wall ductility, energy and deformation capacity, are better than the same size hole ecological composite wall; carrying capacity, stiffness lower than WALL body. (2) using ANSYS finite element analysis software OPENING ecological composite wall numerical model and non-linear finite element analysis, finite element analysis with experimental results for comparison. The comparison results show that: the open hole created ecological composite wall numerical model has a certain degree of accuracy, numerical simulation analysis can be used for other conditions wall. (3) through theoretical research and numerical simulation to analyze the impact of open-hole ecological composite wall lateral stiffness of the factors, and to create a finite element model of one of the main factors - the hole location and hole size. Regression analysis of the resulting data by finite element analysis, fitting out the lateral stiffness variation of expression under different conditions, combined with the existing open-hole wall resistance to lateral stiffness calculation method, the original ribbed composite wall the lateral stiffness of the formula to be amended, that are suitable for openings ecological composite wall anti simplified calculation method for lateral stiffness. Paper type: application of basic research * the study funded project for the following topics: 1. National Natural Science Foundation of China (50908188,50878021); national \2008BAK51B04) 3. Shaanxi Province 13115 (2008ZDKG-76).

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CLC: > Industrial Technology > Building Science > Building structure > Special Structure > Anti - shock structure,disaster prevention structures > Shock, isolation, and explosion-proof structure > Seismic structure
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