| Summary: | 碩士 === 國立臺灣科技大學 === 建築系 === 105 === As one of the biggest forest area in the world, Indonesia has been facing the crisis of wood product. Long time ago many traditional houses in Indonesia were still used wood as the structure material component. However, today it is difficult to find a new traditional houses using wood as a material, this problem occurred because today wood supply was too expensive and difficult to find. In order to use wood more effectively, this research proposed an experimental study of creating a new composite wood column to conserve traditional wooden house in Indonesia.
In this research, the specimens that used were the waste part of two species of woods (Java Palisandre & Paraserianthes falcataria) from Indonesia sawmill company. The main idea for this research is assembling a four small pieces of waste wood to create a new composite rectangular column, which can be used as a structural column for the main structure part of Indonesia traditional wooden house. The experimental study divided into 2 preliminary test, shear strength compressive test and connection withdrawal test. All results from the tests were reviewed and analyze using the plastic method to determine the failure mode from the test.
Currently, there are many methods to predict yield load of timber joints. This study will use Johansen, Foschi and US 5% nail diameter method to predict the yield load of 23 shear test specimens with steel nail and self-tapping screw joint. The comparison between experimental program and the three method shows that the result is reliable but still need more testing to obtain more data.
The result shows most connection on the specimen were work properly and some material was broken with the connection failure. Due to lack of material, there will be a further investigation, which use more specimen’s part to test another assembling shape possibility and a full compression test on bigger column scale.
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