Seismic response of low-rise buildings

Abstract

The results of an investigation into the dynamic response of several low-rise structures are reported. The main parameters studied were the effect of variations in the form of the hysteresis loop exhibited by the inelastic members and of differing types of earthquake accelerograms.

Modal Analysis of Steel-Framed Residential Structures for Application to Seismic Design

“…This has implications for systems that exhibit such slackness when subjected to earthquakes. In fact, this has led some researchers to investigate the influence of slackness on the behavior of timber-framed structures when subjected to earthquakes because such frames may exhibit larger initial slackness due to shrinkage (Moss and Carr, 1987;Dean, Stewart, and Carr, 1986).…”

Structures of limited ductility

“…In most cases the displacements and resulting forces are largely independent of the shape of the hysteresis loop. Recent time-history computer studies have shown that although displacements may be slightly larger for a pinched-loop structure , the particular nature of the earthquake record itself is a much more important variable [27]. These studies show that whereas ductile structures are generally required to possess the displacement capacity of an equivalent elastic structure, certain earthquake records may impose a displacement demand two or more times larger, especially for low period structures .…”

“…In many timber structures, lateral loads are resisted by diaphragms or shear walls, where the weakest links are the ductile nailed connections between the sheathing and the framing. Such structures can undergo many cycles of loading, producing somewhat pinched hysteresis loops [24][25][26][27][28]. The pinching is due to nonrecoverable crushing of wood adjacent to the nails.…”

“…A joint study group of the New Zealand National Society for Earthquake Engineering and the New Zealand Timber Design Society is producing useful information on the seismic behaviour and design of timber structures [23][24][25][26][27][28][29]. This paper is based on their work and Reference 30.…”

A preliminary analytic evaluation of the seismic response of structural walls failing in a shear mode

“…It is known that variation of the shape of the loops has little influence on the response, and there is growing evidence [7,8] that the area within the loops is of less consequence than was thought to be the case.…”