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Load Bearing Rammed Earth Wall Shear Capacity Analysis

Author: YangHui
Tutor: ZhangYin
School: Xi'an University of Architecture and Technology
Course: Geotechnical Engineering
Keywords: load-bearing rammed earth walls shear strength shear capacity finite element analysis Compressive strength
CLC: TU361
Type: Master's thesis
Year: 2012
Downloads: 40
Quote: 0
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Abstract


As a architectural form of traditional houses in our country, Adobe structure is still widely used in most rural area. This structure has a series of advantages:green, ecological and energy-efficient, affordable and using local materials. The research of its wall bearing capacity has a great significance to the structural design. Combing the bearing wall of rammed earth, the paper has made a analysis on earthquake pattern, crack forms, damage feature and wall bearing capacity. Besides, using the ABAQUS finite element software, the study has analyzed the force and deformation feature of rammed walls in different working condition and if various factors has effects to wall seismic performance. The related conclusion is as follows:1.By analyzing the impact on performance of rammed earth wall by shear moisture content of the wall material, the vertical stress, compressive strength, shear strength, high aspect ratio and impact energy. The result shows compressive strength is the key factors of mechanical properties of adobe materials.2. Application of ABAQUS finite element software to study the vertical load, cohesion, internal friction angle, hole size, high aspect ratio of rammed earth wall shear capacity. Its influence rule shows improving the vertical load is able to improve the bearing capacity of the wall within a certain range, while bearing capacity decreases with the increase of aspect ratio.3. According to the relevant test and numerical calculation results, the regression analysis of wall shear capacity was done. Considering the vertical load, the compressive strength and thickness ratio, the rammed earth wall shear capacity formula was created and the conditions of application of the formula was given.

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