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Experimental Study On Seismic Behavior Of Mesh Cloth CBF Reinforced Masonry Walls

Posted on:2016-11-12Degree:MasterType:Thesis
Country:ChinaCandidate:S F HuFull Text:PDF
GTID:2272330476450618Subject:Architecture and civil engineering
Abstract/Summary:PDF Full Text Request
Masonry structure has a long history and is widely used in the form of the building structure which played an important role in human development. But the masonry structure as a brittle material, Its flexural, shear performance than the poor, with the height of the construction is growing, the general masonry structures in seismic performance has been reflected. There are greater difficulties for reinforced masonry structures in disaster of our production and life.As a new building material FRP has been used in construction widely. Because FRP materials have the advantages of elasticity modulus and small deformation, FRP will be added to the masonry structures mortar layer can be well suppressed the development of cracks under load and will be improved its overall performance. This paper studies the mesh cloth CBF seismic behavior of reinforced masonry walls, At first through the wall material(sintered brick, mortar, CBF unidirectional fabric) for basic mechanical testing, Then for two different aspect ratios, four different ways of nine reinforcing mesh CBF cloth quasi-static test reinforced brick masonry walls, analysis obtained mesh CBF cloth reinforced masonry walls seismic performance such as hysteresis curves, skeleton curves, stiffness degradation curve, energy dissipation and so on. Through the analysis of test data of each wall of the mesh cloth CBF enhancement factors brickwork wall bearing capacity by the earthquake, and gives mesh cloth CBF reinforced masonry wall shear capacity calculation methods.Through a quasi-static analysis and comparison of test results for unreinforced masonry walls and mesh CBF cloth reinforced masonry walls data obtained CBF reinforced masonry walls in limit displacement ductility and energy dissipation capacity has been significantly improved, Meanwhile CBF for the development of cracks on the wall also played a good inhibition; By analyzing the results of CBF reinforced masonry walls seismic capacity, draw mortar strength, brick strength, high aspect ratio, vertical stress is the main body of seismic capacity factor affecting CBF reinforced masonry walls. Through the analysis of mesh CBF cloth reinforced masonry walls in the results for shear capacity, consider formula for calculating the level of mesh reinforcement for shear capacity of masonry walls and reinforced participation factors affect the impact of the most close to the experimental value.
Keywords/Search Tags:Masonry Structures, FRP, mesh CBF cloth reinforced masonry walls, Quasi-static test, Seismic Performance
PDF Full Text Request
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