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Differential settlement analysis of different approach slab design concept for road bridges

Mohd Masirin, Mohd Idrus and Md Zain, Rasimah (2012) Differential settlement analysis of different approach slab design concept for road bridges. Other thesis, Universiti Tun Hussein Onn Malaysia.

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Abstract

Settlement has been an issue when construction on soft soils is concerned. Many types of soils are classified as soft soils such as peat soils, soft clays and organic soils. On the held, these types of soils may also create a situation classified as difficult ground condition. Thus, construction may cause many uncertainties and problems. In this research, deferential settlement between bridges and pavements was studied to understand the behaviour of soils and bridge structures. The introductions of approach slabs by many engineers have reduced some of the problems at the interface sections but only for a short period of time. This research includes, simulation using PUXAS computer software and field geotechnical forensic studies which later lead to the development of a proposed new interface road bridge test-bed at RECESS Malaysia, UTHM by the researcher acronymed IRB Test Bed. Some laboratory tests and small modelling analysis were also conducted in order to investigate the effect of several shapes and methods of connection between roads and bridges. From the research, it was found that problems of differential settlement are basically due to the difference nature in medium between roads and bridges. The introduction of an approach slabs were able to reduce the sudden effect due to differential settlement but, could not solve the problems, absolutely, However, the researchers have started to construct an IRB test bed at RECESS Malaysia, UTHM in order to conduct further research on a full scale research. It is hoped that this research can contribute towards better understanding of road and bridge interface problems and reduce maintenance cost. The existence of differential settlements are considered as hazards to road users playing the roads and bridges especially built on difficult ground conditions such as soft clays.

Item Type: Thesis (Other)
Uncontrolled Keywords: settlement; approach slab; geotechnical; forensic; IRB Test Bed; roads; bridges
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA703-711 Engineering geology. Rock mechanics. Soil mechanics.
Depositing User: Normajihan Abd. Rahman
Date Deposited: 07 May 2015 07:05
Last Modified: 07 May 2015 07:05
URI: http://eprints.uthm.edu.my/id/eprint/6878
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