Optimization of Bridge Approach Slab
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Every US state Department of Transportation has its own practice for design and construction of Bridge Approach Slab (BAS). The objective of this thesis is to explore the usage of alternate innovative structural solution for Missouri Department of Transportation (MoDOT), simple to implement in the field and to reduce the cost of construction when a Bridge Approach Slab is needed. A cost study was performed in order to determine the least cost slab design from the slabs data obtained from all the states. The cost was estimated based on the MoDOT costing method and was compared with the data gathered from other states' BAS. Analysis and design of various finite element BAS models were carried out in SAP to study the effect of span, reinforcement changes, and soil stiffness under the slab. This project study provides an overview of optimization of design and cost of Bridge Approach Slab.
Table of Contents
Abstract -- List of Illustrations -- List of Tables -- Acknowledgments -- Introduction -- States' Detail and Classification -- Performance Survey Study of BAS and of Various States -- Site Visits -- Cost Analysis for Bridge Approach Slabs -- Cost Optimal Structural Design -- Approach Slab Numerical Modeling -- New Cast in Place BAS Design Recommendations -- Appendices -- Bibliography -- Vita.