BENDING PERFORMANCE OF TIMBER CONCRETE COMPOSITE WITH DIFFERENT DEGREE OF COMPOSITE ACTION

Chiam, TAT CHUEN (2018) BENDING PERFORMANCE OF TIMBER CONCRETE COMPOSITE WITH DIFFERENT DEGREE OF COMPOSITE ACTION. Bachelor Degree thesis, Universiti Tun Hussein Onn Malaysia.

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Abstract

Timber Concrete Composite (TCC) combined concrete and timber to exploit their best properties via complementary action. Interlayer connection represent the core of composite structure and is vital in governing the performance and degree of composite action (DCA) of this material. The usage of TCC in building construction still remain unpopular partly due to lacking of standard that governing such construction. This study aimed to determine the strength and stiffness of different interlayer connection in timber concrete composite (TCC) such as nail and screw. Besides that, the bending performance and behaviour of timber beam and TCC beam with different number of shear connectors as well as different number of timber joists were also being analysed. Moreover, the bending capacity enhancement of TCC towards timber and the DCA in TCC were also included in this study. Push out test and four point bending test had been conducted to determine the slip moduli of shear connectors and the bending performance as well as DCA in TCC respectively. There are a total of 6 push out test specimen, 3 timber only beam and 6 TCC beams had been tested. Study shows that the screw had higher slip moduli as compared to nail and therefore the screw then adopted in the production of TCC specimen. The bending performance of timber and TCC specimen were reported to be improving with the increment in the number of (1) jointed timber, (2) shear connectors and (3) timber joists in TCC whereby up to 2.87, 1.23 and 4.08 times respectively increment in the load capacity had been reported in the study. Furthermore, study also shown 1.35, 1.37 and 2.01 times increment in load capacity of TCC towards timber under one, two and five timber series respectively. The DCA achieved in TCC specimen produced in this study were in the range of 3.43% to 32.58% which considered to be medium to low DCA specimen. An interesting findings shows that the highest effective bending stiffness in timber only beam is almost equivalent to the lowest effective bending stiffness of TCC beam. The result had proven the application of this composite material is useful in improving the performance of timber beam.

Item Type: Thesis (Bachelor Degree)
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Civil and Environmental Engineering > Department of Structural and Materials Engineering
Depositing User: PSM Coordinator JKSB
Date Deposited: 06 Aug 2018 01:53
Last Modified: 06 Aug 2018 01:53
URI: http://ethesis.uthm.edu.my/id/eprint/1022

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