Download or read book Shear Strength of Full sized Prestressed Concrete Composite Bridge Beams written by Choon Jin Tay and published by . This book was released on 1983 with total page 1098 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vertical Shear Strength of Composite Prestressed Concrete Bridge Beams written by Ernest Walter Bennett and published by . This book was released on 1989 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Static and Repetitive Loading Tests on Full scale Prestressed Concrete Bridge Beams written by C. A. K. Irwin and published by . This book was released on 1977 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ultimate Horizontal Shear Strength of Prestressed Split Beams written by S. B. Nosseir and published by . This book was released on 1971 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report deals with the horizontal shear resistance and behavior of prestressed concrete composite beams when the interface is selected to pass through the centroid of the composite section. Composite beams proportioned in this manner are referred to as prestressed split beams. A total of eight simply supported split beams were statically tested with the major variables being interface roughness and reinforcement parameter r fy. (r and fy are the percent and yield point of the web reinforcement across the interface.) All test beams were posttensioned and grouted and had the same nominal dimensions. Beams with rough interfaces showed an increase in the ultimate horizontal shear strength of about 100 psi over that of 'duplicate' beams with smooth interfaces. The ductility and the energy absorption capacity increased with r fy. The ultimate horizontal shear strength for beams with r fy = 0 was in excess of 400 psi and increased at the rate of about 60 psi per 100 psi increase in r fy. The two beams with the highest value of r fy failed in flexure. In spite of developing slip at the interface, these two beams developed the calculated flexural resistance based on full composite action. The horizontal shear resistance of the test beams failing in horizontal shear was much higher than the computed values based on the ACl code. (Author).
Download or read book Highway Research Development Studies written by United States. Bureau of Public Roads. Office of Research and Development and published by . This book was released on 1968 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Shear Strength of Prestressed Concrete Beams written by René E. Walther and published by . This book was released on 1957 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Strength of Horizontal Shear Reinforcement with Limited Development written by Regina Nyambura Waweru and published by . This book was released on 2015 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: In order for the composite action between the precast beam and the cast-in-place deck to be effective, sufficient horizontal (interface) shear strength needs to be provided at the interface of the two concrete elements to prevent slip. Horizontal shear strength is provided by three main components: the protrusions on the crack faces (cohesion/aggregate interlock), friction between the faces resulting from the normal compressive stress, and the dowel action of the reinforcing bars. AASHTO LRFD equation assumes that all reinforcement crossing the interface would be fully developed on both sides of the interface at ultimate shear strength. This study examines if adequate horizontal shear capacity is provided by a very short embedded length (approximately 2-in.) commonly used in composite slab and box bridge beams in Texas. A number of component test that included push-off test and bar pullout tests were conducted to evaluate each component of horizontal shear. Seven fullscale composite prestressed bridge beams were tested to evaluate the contribution of dowel action of the reinforcement on horizontal shear capacity. These beams included two beams designed according to the current TxDOT specifications and two beams designed without any horizontal shear reinforcement. The interface area was reduced in the last three full-scale beams so as to force a horizontal shear failure and hence obtain the horizontal shear strength in those specimens. Results revealed that although the component tests show that the interface reinforcement with 2-in. embedded length could not be fully developed, the full-scale tests (with reduced interface area) indicate that the actual boundary conditions in the composite beams could provide abundant confinement to develop the reinforcement. Experimental results show that current AASHTO provisions for horizontal shear in composite concrete beams could over-estimate the horizontal shear contribution from dowel action of the reinforcement and do not represent the true behavior of the horizontal shear resistance mechanism.
Download or read book Shear Capacity of Composite Prestressed Concrete Beams written by Elzbieta Saran and published by . This book was released on 1989 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Full depth Precast Concrete Bridge Deck Panel Systems written by Sameh S. Badie and published by Transportation Research Board. This book was released on 2008 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experimental and Analytical Study of Full depth Precast prestressed Concrete Deck Panels for Highway Bridges written by Scott M. Markowski and published by . This book was released on 2005 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recommended Guide Specification for the Design of Externally Bonded FRP Systems for Repair and Strengthening of Concrete Bridge Elements written by Abdul-Hamid Zureick and published by Transportation Research Board. This book was released on 2009 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's National Cooperative Highway Research Program (NCHRP) Report 655: Recommended Guide Specification for the Design of Externally Bonded FRP Systems for Repair and Strengthening of Concrete Bridge Elements examines a recommended guide specification for the design of externally bonded Fiber-Reinforced Polymer (FRP) systems for the repair and strengthening of concrete bridge elements. The report addresses the design requirements for members subjected to different loading conditions including flexure, shear and torsion, and combined axial force and flexure. The recommended guide specification is supplemented by design examples to illustrate its use for different FRP strengthening applications.
Download or read book Simplified LRFD Bridge Design written by Jai B. Kim and published by CRC Press. This book was released on 2013-04-08 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: Helping readers prepare for the civil and structural PE exam, this book presents numerous design examples that serve as a comprehensive, step-by-step guide to basic bridge design using the AASHTO LRFD Bridge Design Specifications, Fifth Edition. It offers a simplified explanation of load resistance factor design (LRFD) method-based bridge design principles and lists the AASHTO reference section numbers alongside formulas and where topics are introduced, to refer the reader to the primary source material. This is a valuable reference for civil engineering students as well as for practicing engineers.
Download or read book Prestressed Concrete Manual written by Illinois. Bureau of Bridges and Structures and published by . This book was released on with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes the design and detailing of Illinois standard precast prestressed concrete bridge beams, including a compilation of design procedures, charts and tables as well as standard details and base sheets.
Download or read book Box Beams for Prestressed Concrete Bridges Test of a model through voided box beam bridge written by and published by . This book was released on 1967 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Numerical Analysis of a Half scale Prestressed beam and Slab Bridge Deck written by J. Wills and published by . This book was released on 1989 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Shear Strength of Some 30 year old Prestressed Beams Without Links written by D. W. Cullington and published by . This book was released on 1991 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Highway Research and Development Studies Using Federal aid Research and Planning Funds written by and published by . This book was released on 1963 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
