In-situ Evaluation Of Timber Roof Structures Of Historic Buildings
Author(s)
C.-J. Chen, P.-H. Tsai, M.-F. Hsu & W.-S. Chang
Abstract
In-situ evaluation of timber roof structures of
historic buildings
C.-J. hen', P.-H. ~ s a i ~ , M.-F. HSU~ & W.-S. chang2
IDepartment of Construction Technology,
Leader University, Taiwan
2 Department of Architecture,
National Cheng Kung University, Taiwan
Abstract
Condition assessment is an important step before repairs of timber structure. In
the past, the experienced master carpenters carried out these works in Taiwan.
This paper addresses the inadequacy of the traditional evaluation method, and
proposes a new methodology to evaluate a roof structure by taking into account
the structural performance. The method can be divided into three steps, first the
visual inspection was conducted to record necessary information for further
structural studied. Secondly, the structural analysis of the trusses was carried out
in order to obtain the stresses in members. Comparing the resultant stress under
loading with allowable stress, safety factor in each member was calculated.
Finally, the unsafe and
Keywords
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