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Study on Influence of Cast-in-situ Slab on RC Frame Structure Achieving "Strong Column Weak Beam"

Author: HeJuan
Tutor: GuoJianHua
School: Huazhong University of Science and Technology
Course: Structural Engineering
Keywords: Frame structure Floor slab Weak beam Push-over analysis Plastic hinge Yielding mechanism Effective flange width
CLC: TU375.4
Type: Master's thesis
Year: 2010
Downloads: 45
Quote: 0
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Abstract


Earthquake damage of buildings in the disaster area to investigate , test and improve the effective means of structural seismic design . The survey found that the Wenchuan earthquake disaster , cast-in-place reinforced concrete frame structure does not appear to yield expected in the seismic design of \Many experts and scholars study found that the floor slab is one of the factors affect the frame structure to achieve the \Firstly there , no place floor frame structure to establish the structural model , the structural design of the relevant norms prevailing . Then , using the Push-over analysis method pushover analysis of the structural model to study , no floor frame structure yield differences in the mechanism . And on this basis to further study how to consider the impact of the floor slab to the framework structure \The analysis found that one of the main parameters of the framework of effective flange width of the beam end value . Therefore, this paper then on the basis of the foregoing with the floor frame model , using openings remove beam end slabs of different widths range , so as to establish a set of comparative model on Push - over analysis and comparison of the effective width of the flange beam end reasonable value . Study found , according to existing norms pure frame model for seismic design of cast - in - place reinforced concrete frame structure , the frame structure under rare earthquake can achieve \effective flange width of 6 times the plate thickness of the side plates reinforced frame beam flexural carrying capacity enhancement .

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CLC: > Industrial Technology > Building Science > Building structure > Concrete structure,reinforced concrete structure > Reinforced concrete structures > Frame
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