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    Dynamic analysis of non-planar coupled shear walls with stiffeners using a continuous connection method
    (Civil-Comp Press, 2010) Turkozer C.D.; Aksogan O.; Emsen E.; Resatoglu R.
    The dynamic analysis of non-planar non-symmetrical coupled shear walls on a rigid foundation has been considered in this paper. The analysis deals with coupled shear walls with a finite number of stiffening beams, the properties of which vary from region to region along the height. In this study, Continuous Connection Method (CCM) and Vlasov's theory of thin-walled beams are employed to find the stiffness matrix of the structure. The system mass matrix has been found in the form of lumped masses at the heights where the unit forces have been applied. Following the free vibration analysis, uncoupled stiffness, damping and mass matrices have been found employing the mode superposition method. A time-history analysis has been carried out using Newmark numerical integration method to find the system displacement vector for every time step. Finally, a computer program has been prepared in Fortran language and an asymmetrical example has been solved. The results have been verified via comparisons with those of the SAP2000 structural analysis program using frame method and a perfect match has been observed. This method is an effective method in terms of simplicity of its data and extremely short computation time for the predesign of high-rise buildings. © Civil-Comp Press, 2010.
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    Static analysis of non-planar pierced shear walls with semi-rigid beam-wall connections using continuous connection technique
    (2010) Resatoglu R.; Aksogan O.; Emsen E.; Bikçe M.
    The lateral loads acting on high-rise reinforced concrete buildings are often resisted by specially arranged shear walls. Pierced shear walls weakened by doors, windows and corridors, necessitate particular attention, since they are highly indeterminate. In this study, the static analysis of non-planar pierced shear walls with yielded connections modelled as equivalent rotational springs is considered. To carry out a quick predesign of non-planar pierced shear walls, an elegant technique called Continuous Connection Technique (CCT) has been used in conjunction with Vlasov's theory of thin-walled beams. The governing differential equations, in the CCT, are the compatibility equations written for the vertical displacements at the midpoints of the connecting beams. There is a contribution pertaining to the semirigid beam-wall connections in these equations. The connecting beams are assumed to have the same properties and spacing along the entire height of the wall and all rotational springs have equal constants. ©2010 Academic Journals.