Jointless Bridge Decks PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Jointless Bridge Decks PDF full book. Access full book title Jointless Bridge Decks by Paul Zia. Download full books in PDF and EPUB format.
Author: Paul Zia
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages : 152
Get Book Here
Book Description
The major focus of this research was to validate the concept of connecting two adjacent simple-span girders with a link slab to form a jointless bridge deck so as to eliminate the standard deck joint between the girders. Laboratory tests were conducted on two large-scale specimens to study the performance of the link slab and the girders. The test results indicated that the contribution of link slab to structural continuity is negligible since the stiffness of the link slab is much less than that of the beams with composite decks. Therefore the beams can be treated as simply supported structures without considering the link slab. Furthermore, the stresses in the link slab are controlled primarily by the predominant bending effect due to the end rotations of the beams rather than the axial load effect. A simplified method of analysis is proposed in which the end rotations of the two adjacent girders under a given loading are determined first. Then the end rotations are imposed on the ends of the link slab and the induced moment in the link slab is thus calculated. A design guideline for the link slab is also proposed and illustrated by a design example. The reinforcement for the link slab is designed to control the crack width in the link slab according to the AASHTO criterion.
Author: Paul Zia
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages : 152
Get Book Here
Book Description
The major focus of this research was to validate the concept of connecting two adjacent simple-span girders with a link slab to form a jointless bridge deck so as to eliminate the standard deck joint between the girders. Laboratory tests were conducted on two large-scale specimens to study the performance of the link slab and the girders. The test results indicated that the contribution of link slab to structural continuity is negligible since the stiffness of the link slab is much less than that of the beams with composite decks. Therefore the beams can be treated as simply supported structures without considering the link slab. Furthermore, the stresses in the link slab are controlled primarily by the predominant bending effect due to the end rotations of the beams rather than the axial load effect. A simplified method of analysis is proposed in which the end rotations of the two adjacent girders under a given loading are determined first. Then the end rotations are imposed on the ends of the link slab and the induced moment in the link slab is thus calculated. A design guideline for the link slab is also proposed and illustrated by a design example. The reinforcement for the link slab is designed to control the crack width in the link slab according to the AASHTO criterion.
Author: Adel Kamal El-Safty
Publisher:
ISBN:
Category :
Languages : en
Pages : 452
Get Book Here
Book Description
Author: Alp Caner
Publisher:
ISBN:
Category :
Languages : en
Pages : 312
Get Book Here
Book Description
Author: Mervyn J. Kowalsky
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages : 128
Get Book Here
Book Description
Author: United States. Federal Highway Administration. Region 10
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages :
Get Book Here
Book Description
Author: Victor C. Li
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages : 110
Get Book Here
Book Description
The research is on the development of durable link slabs for jointless bridge decks based on strain-hardening cementitious composite - engineered cementitious composite (ECC). Specifically the superior ductility of ECC was utilized to accommodate bridge deck deformations imposed by girder deflection, concrete shrinkage, and temperature variations, providing a cost-effective solution to a number of deterioration problems associated with bridge deck joints. In this phase 3, research was initiated at developing a solution for early age cracking observed on the Grove Street Bridge ECC link-slab. Systematic investigations (both numerical and experimental) have been conducted on identifying factors which cause early age cracking, replicating early age cracking behavior observed in the field, developing new ECC materials solution to prevent early age cracking, documenting new ECC fresh and hardened properties, verifying new ECC performance by means of the large frame restrained shrinkage test, and revising special provision of ECC link slab. Grove Street Bridge was monitored constantly over the whole project period.
Author: Victor C. Li
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages : 110
Get Book Here
Book Description
The research is on the development of durable link slabs for jointless bridge decks based on strain-hardening cementitious composite - engineered cementitious composite (ECC). Specifically the superior ductility of ECC was utilized to accommodate bridge deck deformations imposed by girder deflection, concrete shrinkage, and temperature variations, providing a cost-effective solution to a number of deterioration problems associated with bridge deck joints. In this phase 3, research was initiated at developing a solution for early age cracking observed on the Grove Street Bridge ECC link-slab. Systematic investigations (both numerical and experimental) have been conducted on identifying factors which cause early age cracking, replicating early age cracking behavior observed in the field, developing new ECC materials solution to prevent early age cracking, documenting new ECC fresh and hardened properties, verifying new ECC performance by means of the large frame restrained shrinkage test, and revising special provision of ECC link slab. Grove Street Bridge was monitored constantly over the whole project period.
Author: Victor Li
Publisher:
ISBN:
Category : Concrete bridges
Languages : en
Pages : 96
Get Book Here
Book Description
Author: Maher K. Tadros
Publisher: Transportation Research Board
ISBN: 9780309062602
Category : Technology & Engineering
Languages : en
Pages : 64
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Costs of replacement and maintenance of expansion joints are often a large part of the costs associated with bridge maintenance. To replace these expansion joints or eliminate some of them on structures could greatly reduce the costs. Link slab is a new design approach, which could replace the traditional expansion joints. A link slab is the portion of the bridge deck that connects two adjacent simple-span girders. Link slabs also reduce the damage to the substructure of bridges due to water penetration and debris accumulation in the expansion joint. The objective of this research is to validate the design assumptions associated with designing link slabs, investigate a limit states design procedure and develop a program for the long-term monitoring of an instrumented link slab. This thesis provides details about testing and analysis, which were useful in accomplishing the research objectives. It also provides information about the datalogger software that was used in this project and also details the computer program that was written in Microsoft Excel to aid in the data collection and sorting.
