Author: Liauw, T C;Leung, King-Wai
First published: N/A
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Liauw, T C;Leung, King-Wai
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.
A series of static tests on thin walled square box specimens, direction fixed at their ends, and subjected to axial overload until gross inelastic distortion occurred are described in this paper. Observations were made on the mode of buckling, the peak load sustained, and the load-shortening characteristics. A simple theory is also presented in which no account is taken of elastic deformations, but folding is assumed to occur along straight lines, together with kinking of the corner edges, and, by assuming a kinematically admissible pattern of such folds, a virtual work analysis is derived to predict theoretical load-shortening characteristics. Reasonable agreement is shown to exist between the theoretical and experimental results.
B. Rawlings and P. Shapland