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Experimental Research on Seismic Shear Strength and Seismic Behavior of Autoclaved Fly Ash Brick Wall

Author: FangLiang
Tutor: LiangJianGuo
School: Changsha University of Science and Technology
Course: Structural Engineering
Keywords: Masonry Autoclaved fly ash brick Seismic shear strength Strength theory Hat model
CLC: TU364
Type: Master's thesis
Year: 2009
Downloads: 130
Quote: 4
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Abstract


Autoclaved fly ash brick is a kind of unique wall material . Early due to the production process, etc. , the poorer the durability of the brick , its use has been limited . Suppress aspects of the molding and steam curing process improvement , the strength and durability of the brick has been greatly improved . In order to reasonably apply this new type of autoclaved fly ash brick , the China Engineering Construction Standardization Association issued the task of preparation of autoclaved fly ash brick masonry application technology specification \In this study, a sub-project specification preparation of project pre- test study . Mainly include : Experimental study of the seismic performance of autoclaved fly ash brick walls and masonry walls seismic shear strength . 11 Wall quasi -static test, including autoclaved fly ash solid brick wall 7 , autoclaved fly ash perforated brick wall 2 , 2 sintered common brick wall , observed a wall piece of work process and destruction morphology , the measured the walls cracking load , ultimate load , displacement under lateral loads , the hysteresis curve seismic performance indicators , and test results with sintered clay brick walls of the comparative analysis . The vertical stress , types of bulk materials and structural columns , and other factors of seismic shear strength and seismic performance of autoclaved fly ash brick wall piece . Experimental study on seismic performance of autoclaved fly ash brick wall piece sintered clay brick walls are fairly basic , appropriate to promote the use of low-intensity earthquake zone . This paper analyzes the assumption of isotropic material strength theory and masonry materials suitable for orthotropic material assumptions derived Masonry failure criterion under pressure and complex plane shear stress state . Summarized by analyzing and comparing the failure criteria suitable for masonry . By analyzing under pressure composite role the macroeconomic conditions wall model plane shear walls , and based on the difference between the micro unit member and the strength theory proposed amendments wall model . Masonry wall using the modified model derived fitting formula based on the strength theory Walls seismic shear strength . Wall model formula calculated values ??are compared with the experimental values ??and norms formula calculation , the recommended formula calculated based on four parameters consecutive hat model masonry walls seismic shear strength .

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CLC: > Industrial Technology > Building Science > Building structure > The structure of the soil, brick, stone,bamboo,wood > The structure of the large brick block structure and a large wooden partition ( Wall )
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