A Novel Procedure For Evaluating The Rotational
Stiffness Of Traditional Timber Joints In Taiwan
Author(s)
W.-S. Chang, M.-F. Hsu & W.-C. Chen
Abstract
The timber joint is one of the most important factors that affect the global
behavior of timber structures in all over the world. This paper aims at proposing
a new procedure for evaluating the rotational stiffness of timber joints found in
Taiwan. Firstly, dismantled surveys were conducted on five historic timber
structures; the results showed that three various types of timber joints can be
found in beam-to-column timber joints; a nondestructive testing method was
proposed and applied on a total of 72 full-scale specimens to propose a method
to classify the timber joints. The results showed that stress wave velocity and
amplitude transmission ratios are feasible for distinguishing the joint types.
Thirdly, bending tests were applied on these 72 specimens to obtain the bending
slip characteristics and rotational stiffness of these timber joints. Statistical
approach was employed to analyze the data and propose models to estimate the
bending slip characteristics and initial rotational stiffness for each joint type. The
results showed that the bending slip characteristics could be estimated by using
slip due to rigid body motion, whereas dimensions and material properties of
timber joints can help to predict initial rotational stiffness. Lastly, from the
discussion previously, a reliable procedure for evaluation of rotational stiffness
of beam-to-column timber joints was proposed.
Keywords: Chuan-Dou timber structures, historic timber structures, timber
joints, semi-rigid behavior.
1 Introduction
The traditional timber structures in Taiwan were originated from Mainland
China hundreds years ago, which can be divided into two main categories:
Chuan-Dou (Figure 1) and Dei-Dou timber structures. Large quantities of
Keywords
Chuan-Dou timber structures, historic timber structures, timber
joints, semi-rigid behavior.
Related Book
Other papers in this volume
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