Withdrawal performance for dowelled timber connections made of Merbau and Chengal species / Puteri Effanur Hidayah Ab.Rahman

This thesis investigated the withdrawal performance of wood and steel dowels inserted in Merbau and Chengal species. The usage of steel as timber connectors was an issue as the steel production produces harmful gases. Wrong design and application of different materials could lead to loss of material...

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Main Author:	Ab.Rahman, Puteri Effanur Hidayah
Format:	Thesis
Language:	English
Published:	2021
Subjects:	Timber Wood
Online Access:	https://ir.uitm.edu.my/id/eprint/60169/1/60169.pdf
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id	my-uitm-ir.60169
record_format	uketd_dc
spelling	my-uitm-ir.601692022-05-24T00:56:32Z Withdrawal performance for dowelled timber connections made of Merbau and Chengal species / Puteri Effanur Hidayah Ab.Rahman 2021-11 Ab.Rahman, Puteri Effanur Hidayah Timber. Wood This thesis investigated the withdrawal performance of wood and steel dowels inserted in Merbau and Chengal species. The usage of steel as timber connectors was an issue as the steel production produces harmful gases. Wrong design and application of different materials could lead to loss of material durability, thus resulting in connection failure as steel and timber have different behaviour. Nevertheless, this study is significant due to the incomplete information on withdrawal performance of timber connection system in Malaysian Standard MS: 544 for Part 2 (Permissible Stress Design of Solid Timber). An experimental study was conducted with 564 timber dowelled connection samples tested in total. The experimental program includes various parameters tested, diameter, dowel embedment depth, type of dowel material, weathering condition and the timber species. The withdrawal capacity obtained proved that diameter, embedment depth, type of dowel and weathering condition affect the withdrawal performance of timber dowelled connection. Only timber species does not affect the withdrawal performance of dowelled timber connection. From the results, it can be concluded that timber with higher density and larger diameter does not necessarily provide better withdrawal performance. There was a good relation between the effect of diameter and type of dowel material. Still, there was no relation between diameter and timber species on withdrawal performance of timber dowelled connection. There was also a poor relationship between the effect of embedment depth and timber species on the withdrawal resistance of timber dowelled connection. Apart from that, there was a good relation between the impact of type of dowel and timber species on withdrawal capacity of timber dowelled connection. As for weathering conditions, the effect has good relations with the type of dowel and timber species on the withdrawal capacity of timber dowelled connections. There was also a good relation between the effect of timber species on withdrawal resistance of timber dowelled connection. The results pointed that there was a significant effect of weathering conditions on the withdrawal performance. The weathering conditions proved to have a relation with the type of dowel and timber species on withdrawal performance. 2021-11 Thesis https://ir.uitm.edu.my/id/eprint/60169/ https://ir.uitm.edu.my/id/eprint/60169/1/60169.pdf text en public masters Universiti Teknologi MARA College of Engineering Hassan, Rohana (Associate Prof. Dr.)
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
advisor	Hassan, Rohana (Associate Prof. Dr.)
topic	Timber Wood
spellingShingle	Timber Wood Ab.Rahman, Puteri Effanur Hidayah Withdrawal performance for dowelled timber connections made of Merbau and Chengal species / Puteri Effanur Hidayah Ab.Rahman
description	This thesis investigated the withdrawal performance of wood and steel dowels inserted in Merbau and Chengal species. The usage of steel as timber connectors was an issue as the steel production produces harmful gases. Wrong design and application of different materials could lead to loss of material durability, thus resulting in connection failure as steel and timber have different behaviour. Nevertheless, this study is significant due to the incomplete information on withdrawal performance of timber connection system in Malaysian Standard MS: 544 for Part 2 (Permissible Stress Design of Solid Timber). An experimental study was conducted with 564 timber dowelled connection samples tested in total. The experimental program includes various parameters tested, diameter, dowel embedment depth, type of dowel material, weathering condition and the timber species. The withdrawal capacity obtained proved that diameter, embedment depth, type of dowel and weathering condition affect the withdrawal performance of timber dowelled connection. Only timber species does not affect the withdrawal performance of dowelled timber connection. From the results, it can be concluded that timber with higher density and larger diameter does not necessarily provide better withdrawal performance. There was a good relation between the effect of diameter and type of dowel material. Still, there was no relation between diameter and timber species on withdrawal performance of timber dowelled connection. There was also a poor relationship between the effect of embedment depth and timber species on the withdrawal resistance of timber dowelled connection. Apart from that, there was a good relation between the impact of type of dowel and timber species on withdrawal capacity of timber dowelled connection. As for weathering conditions, the effect has good relations with the type of dowel and timber species on the withdrawal capacity of timber dowelled connections. There was also a good relation between the effect of timber species on withdrawal resistance of timber dowelled connection. The results pointed that there was a significant effect of weathering conditions on the withdrawal performance. The weathering conditions proved to have a relation with the type of dowel and timber species on withdrawal performance.
format	Thesis
qualification_level	Master's degree
author	Ab.Rahman, Puteri Effanur Hidayah
author_facet	Ab.Rahman, Puteri Effanur Hidayah
author_sort	Ab.Rahman, Puteri Effanur Hidayah
title	Withdrawal performance for dowelled timber connections made of Merbau and Chengal species / Puteri Effanur Hidayah Ab.Rahman
title_short	Withdrawal performance for dowelled timber connections made of Merbau and Chengal species / Puteri Effanur Hidayah Ab.Rahman
title_full	Withdrawal performance for dowelled timber connections made of Merbau and Chengal species / Puteri Effanur Hidayah Ab.Rahman
title_fullStr	Withdrawal performance for dowelled timber connections made of Merbau and Chengal species / Puteri Effanur Hidayah Ab.Rahman
title_full_unstemmed	Withdrawal performance for dowelled timber connections made of Merbau and Chengal species / Puteri Effanur Hidayah Ab.Rahman
title_sort	withdrawal performance for dowelled timber connections made of merbau and chengal species / puteri effanur hidayah ab.rahman
granting_institution	Universiti Teknologi MARA
granting_department	College of Engineering
publishDate	2021
url	https://ir.uitm.edu.my/id/eprint/60169/1/60169.pdf
_version_	1783735093975580672

Withdrawal performance for dowelled timber connections made of Merbau and Chengal species / Puteri Effanur Hidayah Ab.Rahman

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