Abstract
The alternative types of composite structure made of wood and cement based building materials needs to meet with the high demand for earthquake-resistant houses in Indonesia. In order to understand the mechanism of earthquake resisting performance of shear wall, it is necessary to investigate not only elastic behavior of shear walls but also non-linear one. In this study, series of full-scale experiments on timber frame shear walls composed of Akasia wood (Acacia mangium) sheathed by Fiber Cement Board (FCB) were carried out. For predicting skeleton curve, a series of theoretical equations was derived, which cannot only solve arbitrary nail pattern shear wall but also nonlinear behavior after yielding. Further, for describing hysteresis loops of shear walls, so-called Normalized Cyclic Loop (NCL) model was adopted. By combining two theoretical approaches, weintended to predict whole cyclic shear wall behaviors tested. Good agreements were obtained from comparison between experiment and prediction. The information obtain by this study will be useful for practical engineers or structural designers to design the high performance earthquake resisting timber houses.
Highlights
From recent damage due to earthquakes in various places in Indonesia, it appears that residential houses made of concrete and/or masonry was insufficient and collapsed in severe earthquakes
Series of full-scale experiments on timber frame shear walls composed of Akasia wood (Acacia mangium) sheathed by Fiber Cement Board (FCB) were carried out
This paper aimed for establishing reliable shear walls by using Akasia wood frame, sheathed with Fiber Cement Board (FCB), which is similar to those being used for earthquake-resisting house in Indonesia
Summary
From recent damage due to earthquakes in various places in Indonesia, it appears that residential houses made of concrete and/or masonry was insufficient and collapsed in severe earthquakes. The Japanese government and universities, institutes and commercial companies have been paying effort to make timber residential houses stiffer, stronger and tougher. Following this good previous example, an attempt was initiated in Indonesia to make residential houses more capable of surviving severe earthquakes in the future. The Normalized Cyclic Loop (NCL) models for predicting hysteresis loops were used By combining these two theoretical approaches, intended to predict whole non-linear cyclic behaviors of shear walls, which were composed of Akasia wood frame and nail on FCB sheathing
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