Download or read book Skew Slab Bridges with Integral Slab Abutments Analysis of Smith Bridge written by and published by . This book was released on 1991 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Skew slab bridges with integral slab abutments written by and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Skew Slab Bridges with Integral Slab Abutments Design curves written by and published by . This book was released on 1991 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Skew Slab Bridges with Integral Slab Abutments written by and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Skew Slab Bridges with Integral Slab Abutments Computer program SKEWSLAB written by and published by . This book was released on 1991 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High Skew Link Slab Bridge System with Deck Sliding Over Backwall Or Backwall Sliding Over Abutments written by Haluk Aktan and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new bridge design and construction trend to help improve durability and rideability is to remove expansion joints over piers and abutments. One approach to achieve this is to make the deck continuous over the piers by means of a link slab while the girders remain simply supported. The need to implement link slabs is indicated by AASHTO LRFD section 2.5.2.4 which requires using a minimum number of expansion joints to improve rideability. Further, due to durability concerns associated with bridge deck joints, it is preferred to have a least number of joints or develop jointless decks. The expansion joints over the abutments can be removed by one of three methods: deck sliding over back wall, semi-integral abutments, and integral abutments. This results in expansion joints at either or both ends of the approaches. The design concerns other than link slab include backwall and wing-wall design and bearing movement. The behavior of a jointless bridge brings about many challenges to bridge designers. The complexity is augmented when skew is involved. This report complements an earlier report based on previous research on Combining Link Slab, Deck Sliding Over Backwall and Revising Bearings (Aktan et al., 2008) where the behavior of straight and moderately skew (skew 200) link slab bridges were investigated and design recommendations were developed. This report describes the behavior and performance of high skew (skew 200) jointless bridges with link slabs and two abutment configurations. These abutment configurations are deck sliding over backwall and backwall sliding over abutments (i.e. semi-integral abutments). Four tasks were performed in this project. The first task was to review and synthesize information related to the behavior, performance, design, and analysis of skew bridges. The second task was field assessment of skew bridge behavior under static truck loads and thermal loads. The third task was analytical and numerical analysis of skew link slabs. The final task was analytical and numerical analysis of skew sliding deck over backwall systems and semi-integral abutments. Design recommendations are developed based on literature, field assessment data analysis, finite element modeling, and subsequent simulations of the numerous models developed in this project. One recommendation deals with the skew link slab design and the remaining recommendations are for bearing selection and selection and design of a transverse restraint system at abutments of skew link slab bridges.

Download or read book Skew Slab Bridges with Integral Slab Abutments Volume 1 written by and published by . This book was released on 1991 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Behavior and Design of Reinforced Concrete Skewed Slab Bridges with Integral Wall Abutments written by James A. Kankam and published by . This book was released on 1993 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Long Term Behavior of Integral Abutment Bridges written by Robert J. Frosch and published by Joint Transportation Research Program. This book was released on 2011-08-15 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt: Integral abutment (IA) construction has become the preferred method over conventional construction for use with typical highway bridges. However, the use of these structures is limited due to state mandated length and skew limitations. To expand their applicability, studies were implemented to define limitations supported by rational analysis rather than simply engineering judgment. Previous research investigations have resulted in larger length limits and an overall better understanding of these structures. However, questions still remain regarding IA behavior; specifically questions regarding long-term behavior and effects of skew. To better define the behavior of these structures, a study was implemented to specifically investigate the long term behavior of IA bridges. First, a field monitoring program was implemented to observe and understand the in-service behavior of three integral abutment bridges. The results of the field investigation were used to develop and calibrate analytical models that adequately capture the long-term behavior. Second, a single-span, quarter-scale integral abutment bridge was constructed and tested to provide insight on the behavior of highly skewed structures. From the acquired knowledge from both the field and laboratory investigations, a parametric analysis was conducted to characterize the effects of a broad range of parameters on the behavior of integral abutment bridges. This study develops an improved understanding of the overall behavior of IA bridges. Based on the results of this study, modified length and skew limitations for integral abutment bridge are proposed. In addition, modeling recommendations and guidelines have been developed to aid designers and facilitate the increased use of integral abutment bridges.

Download or read book Laboratory Tests of Two 1 3 Scale Models of a RC Skewed Slab Bridge with Integral Abutments written by H. Dagher and published by . This book was released on 1994 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Laboratory Tests of Two 1 3 Scale Models of a RC Skewed Slab Bridge with Integral Abutments written by Lyn Catherine Comstock and published by . This book was released on 1993 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Highway Research Abstracts written by and published by . This book was released on 1991 with total page 1008 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The State of the Art of Precast prestressed Integral Bridges written by Roy L. Eriksson and published by . This book was released on 2001 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Design and Construction of Bridge Approaches written by Harvey E. Wahls and published by Transportation Research Board. This book was released on 1990 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes case histories of the Dumbarton Bridge (San Francisco Bay, Calif.), the Rainier Avenue Embankment (Seattle, Wash.) and the Gallows Road Grade Separation (Fairfax, Va.)

Download or read book Instrumentation and Monitoring of Integral Bridge Abutment to approach Slab Connection written by and published by . This book was released on 2008 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Iowa Department of Transportation has long recognized that approach slab pavements of integral abutment bridges are prone to settlement and cracking, which manifests as the "bump at the end of the bridge". A commonly recommended solution is to integrally attach the approach slab to the bridge abutment. Two different approach slabs, one being precast concrete and the other being cast-in-place concrete, were integrally connected to side-by-side bridges and investigated. The primary objective of this investigation was to evaluate the approach slab performance and the impacts the approach slabs have on the bridge. To satisfy the research needs, the project scope involved a literature review, survey of Midwest Department of Transportation current practices, implementing a health monitoring system on the bridge and approach slab, interpreting the data obtained during the evaluation, and conducting periodic visual inspections. Based on the information obtained from the testing the following general conclusions were made: The integral connection between the approach slabs and the bridges appear to function well with no observed distress at this location and no relative longitudinal movement measured between the two components; Tying the approach slab to the bridge appears to impact the bridge; The two different approach slabs, the longer precast slab and the shorter cast-in-place slab, appear to impact the bridge differently; The measured strains in the approach slabs indicate a force exists at the expansion joint and should be taken into consideration when designing both the approach slab and the bridge; The observed responses generally followed an annual cyclic and/or short term cyclic pattern over time.

Download or read book Detailed Study of Integral Abutment Bridges and Performance of Bridge Joints in Traditional Bridges written by Brooke H. Quinn and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Integral Abutment Bridges (IABs) are jointless bridges in which the superstructure is cast monolithically with its substructure. Eliminating expansion joints from the superstructure reduces corrosion of bridge elements that typically result from leaking joints in traditional bridges. IABs have proven to be cost effective for both construction and life-cycle analysis. As a result, they are the standard single span highway bridge of choice by the majority of State Departments of Transportation (DOTs) across the country. Despite the widespread use of these bridges, there are no uniform guidelines in place. Factors such as pile orientation, design assumptions, maximum span length, skew angle, and curvature vary widely. A study of expansion joint performance was done to investigate typical problems with joints through information collected from meetings with Massachusetts DOT as well as survey results collected from DOT personnel from nine states in and around New England. Results highlight the many issues associated with expansion joints which have resulted in the preference to construct IABs whenever possible. The Vermont Agency of Transportation (VTrans) instrumented three IABs of increasing complexity for long term monitoring and analysis of their performance. The bridges include a straight bridge with 141 ft (43 m) span, a 15 degree skew bridge with 121 ft (37 m) span, and a two-span continuous curved structure with 11.25 degrees of curvature and 221 ft (68 m) total bridge length. This dissertation presents over five years of field data. Results are compared with three-dimensional finite element model predictions. Variations in response due to skew, curvature, and field conditions are addressed. The finite element models were the basis for a parametric study investigating the effect of pile orientation on IABs of varying length and skew angle. Results highlight the factors that affect optimal pile orientation to avoid pile yielding.

Download or read book Structural Analysis and Design written by and published by . This book was released on 1998 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: