Abstract
This paper reviews experimentally determined hysteresis loops for timber structures, including moment-resisting joints with (i) steel and (ii) plywood side plates, (iii) shear walls clad with various materials, and (iv) push-pull tests on various connection details. The paper compares bending and push-pull hysteresis loops for nailed steel side-plate joints. An attempt is made to classify the above hysteretic behaviour for analytical purposes, and the available computer models are reviewed for applicability to these hysteresis shapes.
Highlights
This paper is one of a series of papers on the design of timber structures for wind and earthquake resistance, resulting from the work of a joint committee of the New Zealand Timber
Section D of the references gives ten sources of hysteresis loops for various connection details tested under push-pull cyclic loading
Some of these tests examined models of particular joints, some were to assess element behaviour, and some were intended to simulate the behaviour of elements of different geometry, eg shear walls
Summary
While of general interest to researchers and designers in the construction industry, this study had a specific purpose as the first stage in a series of studies tor determining the SM product Required for assessing the level of lateral seismic load using the provisions of the. Section A of the references gives five sources of hysteresis loops for this situation , of which the first (Ref Al) is derived from A3 and A 4. The list reduces to four ultimate sources, of which two (A3, A4) concern the behaviour of single joints, and the other two (A2, A5) concern portal frame behaviour
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