Author: Rami Ibrahim Jabakhanji Publisher: ISBN: Category : Languages : en Pages : 216
Book Description
This report presents an investigation of the behavior of simply supported, multi-lane, reinforced concrete solid slab bridges using the finite element method. Solid slab bridges have a behavior pattern that falls between one-way slab behavior and two-way slab behavior. Geometric parameters such as: span length, thickness of slab, number of lanes, presence of shoulders, and the location of trucks, affect the behavioral pattern of solid slab bridges. Therefore, this study will investigate the effect of these factors by analyzing one-lane, two-lane, three-lane, and four-lane bridges, with or without shoulders, each having four different span lengths. Bridges were fully loaded (one AASHTO HS20 truck in each lane). Loads were either centered in every lane, or located towards one edge of the slab. In addition, all the slab bridges with shoulders were over-loaded by assuming a disabled truck on one edge of the bridge in combination with the other design trucks stationed side by side; this combination produces the worst loading conditions on the bridge. Design trucks were positioned in the longitudinal direction in order to produce the maximum positive bending moment.--The finite element method is proposed to analyze the solid slab bridges by using the structural analysis program SAP90. The research focussed on evaluating the maximum lateral bending moment distribution over the critical cross-section of the bridges. The results of this study were used to assess the design approach currently employed by the American Association of State Highway and Transportation Officials (AASHTO) " Standard Specifications for Highway Bridges (1996)."
Author: Carol Shukri Menassa Publisher: ISBN: Category : Languages : en Pages : 258
Book Description
The thesis investigates the effect of skewness on reinforced concrete solid slab bridges. This study considers bridge decks with various angles of skewness, and live load distribution from truck loading on the solid slab is determined. Simple multi-lane bridges are analyzed for a variety of span lengths and slab widths. The loading consists of AASHTO HS-20 design truck, which is so positioned laterally and longitudinally to produce maximum moments in the slab. The analysis is performed using the finite element method and a proper mesh is selected to account for the skewness of the bridge slab. Finally, the behavior of the bridges analyzed is assessed with design procedure currently in use. The American Association of State Highway and Transportation Officials (AASHTO), "Standard Specifications for Highway Bridges, 1996". Also, a comparison between straight and skewed bridges is conducted.
Author: Guenter Axel Rombach Publisher: Thomas Telford ISBN: 9780727732743 Category : Architecture Languages : en Pages : 302
Book Description
In Finite Element Design of Concrete Structures: practical problems and their solutions the author addresses this blind belief in computer results by offering a useful critique that important details are overlooked due to the flood of information from the output of computer calculations. Indeed, errors in the numerical model may lead in extreme cases to structural failures as the collapse of the so-called Sleipner platform has demonstrated.
Author: Ehab Ellobody Publisher: Elsevier ISBN: 044318996X Category : Technology & Engineering Languages : en Pages : 722
Book Description
This second edition of Finite Element Analysis and Design of Steel and Steel-Concrete Composite Bridges is brought fully up-to-date and provides structural engineers, academics, practitioners, and researchers with a detailed, robust, and comprehensive combined finite modeling and design approach. The book’s eight chapters begin with an overview of the various forms of modern steel and steel-concrete composite bridges, current design codes (American, British, and Eurocodes), nonlinear material behavior of the bridge components, and applied loads and stability of steel and steel-concrete composite bridges. This is followed by self-contained chapters concerning design examples of steel and steel-concrete composite bridge components as well as finite element modeling of the bridges and their components. The final chapter focuses on finite element analysis and the design of composite highway bridges with profiled steel sheeting. This volume will serve as a valuable reference source addressing the issues, problems, challenges, and questions on how to enhance the design of steel and steel-concrete composite bridges, including highway bridges with profiled steel sheeting, using finite element modeling techniques. Provides all necessary information to understand relevant terminologies and finite element modeling for steel and composite bridges Discusses new designs and materials used in highway and railway bridge Illustrates how to relate the design guidelines and finite element modeling based on internal forces and nominal stresses Explains what should be the consistent approach when developing nonlinear finite element analysis for steel and composite bridges Contains extensive case studies on combining finite element analysis with design for steel and steel-concrete composite bridges, including highway bridges with profiled steel sheeting
Author: Ehab Ellobody Publisher: Butterworth-Heinemann ISBN: 0124173039 Category : Technology & Engineering Languages : en Pages : 683
Book Description
In recent years, bridge engineers and researchers are increasingly turning to the finite element method for the design of Steel and Steel-Concrete Composite Bridges. However, the complexity of the method has made the transition slow. Based on twenty years of experience, Finite Element Analysis and Design of Steel and Steel-Concrete Composite Bridges provides structural engineers and researchers with detailed modeling techniques for creating robust design models. The book’s seven chapters begin with an overview of the various forms of modern steel and steel–concrete composite bridges as well as current design codes. This is followed by self-contained chapters concerning: nonlinear material behavior of the bridge components, applied loads and stability of steel and steel–concrete composite bridges, and design of steel and steel–concrete composite bridge components. Constitutive models for construction materials including material non-linearity and geometric non-linearity The mechanical approach including problem setup, strain energy, external energy and potential energy), mathematics behind the method Commonly available finite elements codes for the design of steel bridges Explains how the design information from Finite Element Analysis is incorporated into Building information models to obtain quantity information, cost analysis
Author: Sujata Roy Publisher: ISBN: Category : Languages : en Pages : 188
Book Description
A bridge approach slab serves as a structural slab to bridge any void that is created by any differential settlement between the bridge structure and the approach embankment. It provides a gradual transition from the pavement into the bridge. The primary causes of approach slab failures are undermining, settlement and cracking. Undermining and settlement of the slab can be treated by either mud jacking or by pumping grout material to fill the voids beneath the slab. Transverse and longitudinal cracking leads to distress of the slab and reduces its life expectancy. Repair and rehabilitation of the system is a heavy financial burden on the state department of transportation. This dissertation aims in mitigating the causes of cracking and also location of cracks by doing a finite element analysis of the slab. The factors affecting the cracks has also been studied. This study helps prove the utility of finite element analysis for reinforced concrete structures.
Author: M.S. Cheung Publisher: CRC Press ISBN: 1482294788 Category : Architecture Languages : en Pages : 364
Book Description
In-depth, comprehensive and up-to-date information on the powerful finite strip method of analysis of bridges. It is in three parts. The first introduces the method and gives the necessary background. The second explains the evolution of the method and the third part provides detailed information on the application of the method to highway bridges.
Author: Rami Ibrahim Jabakhanji
Author: Carol Shukri Menassa
Author: Guenter Axel Rombach
Author: 
Author: Ehab Ellobody
Author: Ehab Ellobody
Author: Marcio Costa Araujo
Author: Sujata Roy
Author: M.S. Cheung
Author: Amir Ghatefar