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Research on Friction Sliding Isolation Technology for Masonry Structure in Rural Regions

Author: LiuKai
Tutor: XiaHongLiu
School: Chongqing University
Course: Civil Engineering
Keywords: Friction Sliding Isolation Rural Buildings Asphaltic Sand Mixture FEM Analysis Shaking Table Test
CLC: TU352.1
Type: Master's thesis
Year: 2011
Downloads: 87
Quote: 1
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Abstract


Currently,the earthquake occurred frequently on a global scale.Most destructive earthquakes occurred in the vast rural and remote rural areas in China.As the economic situation in these regions is relatively backward compared with the developed countries, the earthquake resistance capacity the structure of is poor.When met with the same intensity of earthquake,the villages and towns buildings damaged or collapsed and the extent of casualties are much higher than in urban areas,the more poverty areas are often more serious.Therefore,the study of seismic shock absorption technology of the villages structure is very important.In this paper,the study subjects are the single-layer masonry structure,which is more serious types of damage structure of rural buildings, based on the analysis of existing damping technology and the principle of "effective, economical and easy construction and durability".Proposed that the frictional sliding technology applied in the masonry structure of rural areas,also do research and analysis on the finite element and the shaking table testing of the single-layer slip and shock absorption masonry structure,including:(1) Firstly,summarize the status of structural vibration control technology, introduces the calculation model of the slip shock structure,establishing the equations of motion and critical state judge conditions,thus proposed the sliding damping technology applied in the low intensity town construction.(2) Describes the design method of sliding structure.Making the finite element analysis model program of a typical single-slip vibration masonry by the soft of SAP2000.The modal and nonlinear time history analysis shows that:Sliding structure extended the natural vibration period than traditional consolidation structure,the form of structural vibration levels before moving primarily is two vibration modes,while the sliding structure can reduce earthquake response effectively.(3) Put forward the asphaltic sand as sliding materials in rural architectural structures,and design different application bitumen asphaltic sand ratio scheme, eventually determine the suitable ratio scheme through the test and determined its friction coefficient,compressive strength parameter.(4) Do the shaking table test research on the sliding suspension structure model,based on the asphaltic sand as sliding layer sliding wall and traditional consolidation wall constitutive model under different working conditions,which validated the shock absorption effect of the asphaltic sand as sliding layer technology in rural low-rise building structure and provide the basis for further research.

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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
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