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Behaviour and Design of Timber-Concrete Composite Floor System

This Ph.D. thesis represents a summative report detailing research processes and outcomes from investigating the ultimate and serviceability limit state short- and long-term behaviour and design of timber-concrete composite floors. The project enables the realization of a semi-prefabricated LVL-concrete composite floor system of up to 15 m long using 3 types of connection. Design span tables which satisfy the ultimate and serviceability limit state short- and long-term verifications for this system form the novel contribution of this thesis.

In quantifying the behaviour of timber-concrete composite floors, 5 different experimental phases have been carried. 9 major achievements in meeting 9 sub-objectives have been concluded:
1) Three best types of connection system for timber-concrete composite floors have been identified;
2) The characteristic strength and secant slip moduli for these connections have been determined;
3) The short-term behaviour of the selected connections defined by their pre- and post-peak responses under collapse load has been established;
4) An analytical model for the strength evaluation of the selected connections based on the different possible modes of failure has been derived;
5) Easy and fast erected semi-prefabricated timber-concrete composite floor has been proposed;
6) The short-term ultimate and serviceability limit state behaviour of timber-concrete composite floor beams under collapse load has been investigated;
7) The long-term behaviour of chosen connections defined by their creep coefficient has been determined;
8) The long-term behaviour of timber-concrete composite floor beams under sustained load at serviceability limit state condition has been investigated; and
9) Design example and span tables for semi-prefabricated timber-concrete composite floors that satisfy both the ultimate and serviceability limit state in the short- and long-term using the gamma-method have been developed.

Identiferoai:union.ndltd.org:canterbury.ac.nz/oai:ir.canterbury.ac.nz:10092/4428
Date January 2010
CreatorsYeoh, David Eng Chuan
PublisherUniversity of Canterbury. Department of Civil and Natural Resources
Source SetsUniversity of Canterbury
LanguageEnglish
Detected LanguageEnglish
TypeElectronic thesis or dissertation, Text
RightsCopyright David Eng Chuan Yeoh, http://library.canterbury.ac.nz/thesis/etheses_copyright.shtml
RelationNZCU

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