Author: Rawlings, B;Shapland, P
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Rawlings, B;Shapland, P
The analysis of the damped and undamped earthquake response of non-symmetric multi-storey structures is presented, with consideration of the foundation mass and partial restraint of the structure in the subgrade. The analysis is based on the continuous connection method using the normal modes of the structure. Proportional and constant damping are considered. E. Mendelson and M. Baruch
In the section of the paper headed 'Serviceability limit-state' the authors state that further attention should be given to the problem of cracking in skew slabs where the cracks do not necessarily form perpendicular to the reinforcement. In fact, work has been carried out athe Cement and Concrete Association on this problem with particular reference to slab bridges. L.A. Clark
A theory is presented for torsion analysis of symmetrical corewall structures for tall buildings by discrete method in conjunction with transfer matrix formulation. Apart from warping deformation, the possible changes at different storeys such as the thicknesses of walls and the existence and the depths of connecting beams or slabs, are taken into account in the analysis. In an example for a particular case, the correlation of the proposed theory with results calculated from other published methods is shown. The generality and flexibility of the application of the theory is enhanced by the fact that the maximum size of matrices involved in the analysis is only 4 x 4, which is within the practical bound for design office calculations. T.C. Liauw and King-Wai Leung