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The Steel Coupling Beam-Wall Connections Strength
박완신,윤현도 한국콘크리트학회 2006 콘크리트학회논문집 Vol.18 No.1
In high multistory reinforced concrete buildings, coupled shear walls can provide an efficient structural system to resist horizontal force due to wind and seismic effects. Coupled shear walls are usually built over the whole height of the building and re laid out either as a series of walls coupled by beams and/or slabs or a central core structure with openings to accommodate doors, elevators walls, windows and corridors. A num-ber of recent studies have focused on examining the seismic response of concrete, steel, and composite cou-pling beams. However, since no specific equations are available for computing the bearing strength of steel coupling beam-wall connections, it is necessary to develop such strength equations. There were carried out analytical and experimental studies to develop the strength equations of steel coupling beam-connections. Experiments were conducted to determine the factors influencing the bearing strength of the steel coupling beam-wall connection. The results of the proposed equations were in good agreement with both test results and other test data from the literature. Finally, this paper provides background for design guidelines that in-clude a design model to calculate the bearing strength of steel coupling beam-wall connections.
박완신,황선경,윤현도 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2(구조계)
Many models for the design of post-installed steel anchors are presented in this paper. These approach are compared to each other, especially the well-known provisions of CEB method, ACI 349-90 and the CCD method. The use of these methods to predict the concrete failure load of fastenings in uncracked concrete under monotonic loading for important applications is compared. Variables included single anchors away from and close to the edge, embedment depth, concrete strength, tension loading, and shear loading. A data bank including Korean, European and American tests was evaluated. The comparison shows the CCD Method and CEB Method can accurately predict the concrete failure load of fastenings of the full range of investigated applications. On the other hand, depending on the application in question, the predictions of ACI 349-90 and VAC Method are sometimes unconservative and sometimes conservative.