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Experimentai Research on the Behavior of R. C Fram Structure with Damages Caused by Strong Earthquake Due to Elevated Temperature

Author: WangJunFu
Tutor: MiaoJiJun
School: Qingdao Technological University
Course: Structural Engineering
Keywords: Frame structure Strong earthquake damage Exposed to fire Section temperature field Carrying capacity degradation
CLC: TU317
Type: Master's thesis
Year: 2010
Downloads: 42
Quote: 1
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Abstract


Secondary fires after the earthquake occurrence probability is extremely shocking every time after the earthquake due to secondary fires caused property damage and number of casualties . Preliminary study , experienced strong earthquake damage response and carrying capacity on the deterioration of the concrete frame under fire at home and abroad concrete frame structure main contents are as follows: 1) Comprehensive Review of materials and components under fire ( high temperature ) Experimental study and theoretical analysis of the current situation , a comprehensive analysis of previous studies achieved positive results and shortcomings . 2 ) This paper designed two -bay reinforced concrete frame of sufficient size KJ1 and KJ2 of KJ1 low cyclic horizontal load test to simulate KJ1 experienced strong earthquake damage . This paper describes a frame structure under low cyclic horizontal load force characteristics cracks to carry out forms, draw the load - displacement hysteretic curves , skeleton curves , and the load - reinforced strain curve , experience rarely occurred on test analysis earthquake damage state under the framework of the initial state for the subsequent fire test . 3 ) in reference to past research on the basis of the use of standard heating curve framework experienced low cyclic horizontal load damage after fire test . The tests simulate the actual framework of the force state column to withstand axial compression load , recorded at the time the framework of the reaction and the destruction of the state test , the test beam and column section distribution of temperature field and frame column axial deformation data . Carry and set not low cyclic horizontal load comparison test with the fire environment under the temperature distribution from the strong earthquake damage , cracks form, the degradation of the material properties of several aspects of the comparative analysis . 4 ) based on the measured cross - sectional temperature field , high temperature bearing capacity of the cross-section of the two - bay framework of theoretical analysis , obtained carrying capacity degradation experienced strong earthquake injury framework law .

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CLC: > Industrial Technology > Building Science > Building structure > Structure theory to calculate > Structural Testing and Inspection
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