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0-6785, Extending the Use of Elastomeric Bearings to Higher-Demand Applications
1.
2016 ... Research Performed by: Center for Transportation Research; Research Supervisor: Todd Helwig; Researchers: Konstantinos Belivanis [and five others] · "Elastomeric bearing pads have been utilized for support of bridge superstructures for several decades; however, the majority of these applications have typically consisted
6785 Summary [CTR] ... 0-6785-S ... Project Summary
Full-text Link:
http://library.ctr.utexas.edu/ctr-publications/psr/0-6785-s.pdf
268 KB
______________________________________________________________________________________________________
0-6719, Strengthening Continuous Steel Girders with Post-Installed Shear Connectors
2.
2016 ... Research Performed by: Center for Transportation Research; Research Supervisor: Michael D. Engelhardt; Researchers: Kerry Kreitman [and five others] · "A number of older bridges in Texas were constructed with floor systems consisting of a non-composite concrete slab over steel girders. Many of these
6719 Summary [CTR] ... 0-6719-S ... Project Summary, 6719
Full-text Link:
http://library.ctr.utexas.edu/ctr-publications/psr/0-6719-s.pdf
345.14 KB
______________________________________________________________________________________________________
Extending Use of Steel-Laminated Elastomeric Bearings to Higher Demand Applications
3.
2016 ... Konstantinos Victor Belivanis [and six others] · Elastomeric bearings have historically been used on bridges with short to moderate spans. The resulting demand on the bearings is usually not very severe in terms of the necessary support reaction or the deformational requirements. The bearings have historically showed good
6785-1 [CTR] ... FHWA/TX-16/0-6785-1
Full-text Link:
http://library.ctr.utexas.edu/ctr-publications/0-6785-1.pdf
10.6 MB
______________________________________________________________________________________________________
Strengthening Existing Continuous Non-Composite Steel Girder Bridges Using Post-Installed Shear Connectors
4.
2016 ... Kerry Kreitman [and six others] · This study investigated the use of post-installed shear connectors for strengthening existing non-composite continuous steel girder bridges. The existing bridges considered in this study have strength deficiencies in both the positive and the negative moment regions. The type of post-installed shear
6719-1 [CTR] ... FHWA/TX-16/0-6719-1
Full-text Link:
http://library.ctr.utexas.edu/ctr-publications/0-6719-1.pdf
3.7 MB
______________________________________________________________________________________________________
Improved Cross Frame Details for Steel Bridges
5.
2014 ... Anthony Battistini [and five others] · Cross frames are critical members for the stability of straight and curved steel bridges. Conventional cross frames are often fabricated from steel angles; however these members have relatively poor structural behavior. Because of the low buckling strength, cross frames with angle diagonals
6564-1 [CTR] ... FHWA/TX-13/0-6564-1
Full-text Link:
http://library.ctr.utexas.edu/ctr-publications/0-6564-1.pdf
14.2 MB
______________________________________________________________________________________________________
Cross-Frame and Diaphragm Layout and Connection Details
6.
2011 ... RS: Michael Engelhardt; Researchers: Anthony Battistini [and five others] · The primary objective of this project was to develop an improved detail for attaching skewed cross-frames to girders that provides higher stiffness and better structural performance than the conventional bent plate detail. A secondary objective of this
5701 Summary [CTR] ... PSR 0-5701-s ... Project Summary Report, 0-5701
Full-text Link:
http://library.ctr.utexas.edu/hostedpdfs/txdot/psr/5701.pdf
______________________________________________________________________________________________________
Cross-Frame Connection Details for Skewed Steel Bridges
7.
2010 ... Craig Quadrato [and six others] · This report documents a research investigation on connection details and bracing layouts for stability bracing of steel bridges with skewed supports. Cross-frames and diaphragms play an important role in stabilizing steel girders, particularly during construction. The commonly used bent plate
5701-1 [CTR] ... FHWA/TX-11/0-5701-1
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/0_5701_1.pdf
15 MB
______________________________________________________________________________________________________
Implementation of Straight and Curved Steel Girder Erection Design Tools Construction : Summary
8.
2010 ... Jason Stith [and six others] · Project 0-5574 "Curved Plate Girder Design for Safe and Economical Construction," resulted in the development of two design tools, UT Lift and UT Bridge. UT Lift is a spreadsheet-based program for analyzing steel girders during lifting while UT Bridge is a three-dimensional finite element
5574-01-1 [CTR] ... FHWA/TX-11/5-5574-01-1
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/5_5574_01_1.pdf
411 KB
______________________________________________________________________________________________________
UT Lift 1.1
9.
2010 ... by Jason Stith [and four others] · The purpose of this spreadsheet is to provide a tool and give information to an engineer when deciding the safety of lifting a horizontally curved steel I-girder with one crane and two lift clamps. The spreadsheet has been developed to indicate the necessary inputs and highlight the calculated
5574-01-P1 [CTR] ... Product 5-5574-01-P1
Full-text Link:
http://fsel.engr.utexas.edu/facilities/software/ut-lift
Now version 1.3 (accessed 11/23/2015)
______________________________________________________________________________________________________
Guidance for Erection and Construction of Curved I-Girder Bridges : Technical Report -- revised
10.
2010 ... Jason Stith [and eight others] · This report summarizes the methods, results, and recommendations from a research investigation on the behavior of horizontally curved girders during construction. The primary focus of this study is the behavior during early stages of construction when little or no bracing is provided. Girder
5574-1 [CTR] ... FHWA/TX-10/0-5574-1
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/0_5574_1.pdf
5.8 MB
______________________________________________________________________________________________________
Impact of Overhang Construction on Girder Design
11.
2010 ... Seongyeong Yang [and four others] · Economical constraints on the design of bridges usually necessitate the use of as few girders as possible across the bridge width. The girders are typically uniformly spaced transversely with the deck extending past the fascia girders, thereby resulting in an overhang. While designers
5706-1 [CTR] ... FHWA/TX-10/0-5706-1
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/0_5706_1.pdf
4.6 MB
______________________________________________________________________________________________________
Guidelines for Design and Safe Handling of Curved I-Shaped Steel Girders
12.
2010 ... Jason Stith [and five others] · The purpose of this set of guidelines is to summarize recommendations from work completed as part of the Texas Department of Transportation (TxDOT) Research Project 0-5574 entitled "Curved Plate Girder Design for Safe and Economic Construction." The research included field tests, three-
5574-P1 [CTR] ... Product 0-5574-P1
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/0_5574_P1.pdf
90 KB
______________________________________________________________________________________________________
Impact of Overhang Construction on Girder Design
13.
2009 ... Todd Helwig [and four others] · Economical constraints on the design of bridges usually necessitate the use of as few girders as possible across the bridge width. The girders are typically uniformly spaced transversely with the deck extending past the fascia girders, thereby resulting in an overhang. While designers commonly
5706 Summary [CTR] ... PSR 0-5706 ... Project Summary Report, 0-5706
Full-text Link:
http://library.ctr.utexas.edu/hostedpdfs/txdot/psr/5706.pdf
______________________________________________________________________________________________________
Curved Plate Girder Design for Safe and Economical Construction
14.
2009 ... Todd Helwig [and eight others] · Horizontally curved steel I-girder bridges are important components of the highway system that are commonly used for providing efficient transfer of traffic between major thoroughfares. The critical stage for the stability of these curved bridges generally occurs during early stages of erection and
5574 Summary [CTR] ... PSR 0-5574 ... Project Summary Report, 0-5574
Full-text Link:
http://library.ctr.utexas.edu/hostedpdfs/txdot/psr/5574.pdf
______________________________________________________________________________________________________
Implementation Project: Strengthening of a Bridge Near Hondo, Texas Using Post-Installed Shear Connectors
15.
2009 ... Gunup Kwon, Richard Klingner and Michael Engelhardt · This project was an implementation of research conducted under TxDOT Research Project 0-4124 on the use of post-installed shear connectors to develop composite action in existing non-composite steel bridge girder systems. In this implementation study, an existing
4124-01-1 [CTR] ... FHWA/TX-09/5-4124-01-1
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/5_4124_01_1.pdf
______________________________________________________________________________________________________
Bridge Strengthening Through the Use of Post-Installed Shear Connectors. Phase 1
16.
2009 ... Research Performed by: Center for Transportation Research (CTR); Research Supervisor: Michael D. Engelhardt; Researchers: Richard E. Klingner, Gunup Kwon · This project was an implementation of research conducted previously under TxDOT research project 0-4124. Project 0-4124 developed a technique to increase the
4124-01 Summary Phase 1 [CTR] ... PSR 5-4124-01-S (Phase 1) ... Project Summary Report, 5-4124-01
Full-text Link:
http://library.ctr.utexas.edu/hostedpdfs/txdot/psr/5-4124-01_phase1.pdf
______________________________________________________________________________________________________
Design of Composite Steel Beams for Bridges
17.
2008 ... J.A. Yura, E.R. Methvin and M.D. Engelhardt · Current AASHTO bridge specifications require that composite beams have sufficient shear studs to fully yield the steel beam cross section in tension. The large number of studs required is independent of the loading on the bridge. It is recommended that partial composite
4811-1 [CTR] ... 0-4811-1
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/0_4811_1.pdf
207 KB
______________________________________________________________________________________________________
Shear Connector Design for Composite Steel Beams - Strength Limit State
18.
2007 ... RS: Joseph Yura; Researcher: Michael Engelhardt · The AASHTO LRFD Bridge Design Specifications provide rules for strength design of shear connectors for steel composite beams. These current rules require that sufficient shear studs be provided to develop the full composite strength of the steel beam. That is, shear studs
4811 Summary [CTR] ... PSR 0-4811-s ... Project Summary Report, 0-4811
Full-text Link:
http://library.ctr.utexas.edu/hostedpdfs/txdot/psr/4811.pdf
______________________________________________________________________________________________________
Strengthening Existing Non-Composite Steel Bridge Girders Using Post-Installed Shear Connectors
19.
2007 ... Gunup Kwon [and six others] · This study investigated methods to strengthen existing non-composite steel bridge girders by the development of composite action between the steel girder and concrete slab. More specifically, the objective of this study was to identify structurally efficient and practical ways to post-install shear
4124-1 [CTR] ... 0-4124-1
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/0_4124_1.pdf
______________________________________________________________________________________________________
Methods to Develop Composite Action in Non-Composite Bridge Floor Systems
20.
2006 ... RS: Michael D. Engelhardt; Researchers: Brent Hungerford [and five others] · A number of older bridges in Texas are constructed with floor systems consisting of non-composite concrete slab over steel girders. A potentially economical means of strengthening these floor systems is to connect the existing concrete slab and steel
4124 Summary [CTR] ... PSR 0-4124-S ... Project Summary Report
Full-text Link:
http://library.ctr.utexas.edu/hostedpdfs/txdot/psr/0-4124-s.pdf
215 KB
______________________________________________________________________________________________________
Preservation Alternatives for Historic Truss Bridges
21.
2005 ... Michael D. Engelhardt and Dan E. Leary · Texas has a large inventory of older metal truss bridges that were constructed in the late 19th century. Many of these bridges play an important role in the historical fabric of the communities they serve, and the bridges frequently have strong community support. Older metal truss
1741 Summary [CTR] ... PSR 0-1741-S ... Project Summary Report, 0-1741
Full-text Link:
http://library.ctr.utexas.edu/hostedpdfs/txdot/psr/0-1741-s.pdf
______________________________________________________________________________________________________
Analysis, Testing, and Load Rating of Historic Steel Truss Bridge Decks
22.
2003 ... C.M. Bowen and M.D. Engelhardt · This report documents the results of a study of on-system historic metal truss bridges in Texas. On-system bridges are those located on the state highway system, and the surviving on-system historic trusses in Texas were typically constructed in the 1920s and 1930s. The primary objective of this
1741-2 [CTR] ... FHWA/TX-03/ 1741-2
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/1741_2.pdf
9 MB
______________________________________________________________________________________________________
Evaluation and Rehabilitation of Historic Metal Truss Bridges : A Case Study of an Off-System Historic Metal Truss Bridge in Shackelford County, Texas
23.
2003 ... D.R. Maniar, M.D. Engelhardt and D.E. Leary · This report documents the results of a case study of an off-system historic metal truss bridge in Texas. Off-system bridges are not on the state highway system and are typically located on county roads or city streets. There are a large number of older off-system metal truss bridges
1741-3 [CTR] ... FHWA/TX-03/1741-3
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/1741_3.pdf
3 MB
______________________________________________________________________________________________________
Evaluation and Rehabilitation of Historic Metal Truss Bridges : Survey of Literature and Current Practices
24.
2002 ... M.E. Theil, K. Zulfiqar and M.D. Engelhardt · This report documents the results of a survey of current practice and technology for the evaluation and rehabilitation of historic metal truss bridges. It is intended to aid engineers in identifying solutions to typical problems found in older metal truss bridges, including inadequate
1741-1 [CTR] ... FHWA/TX-0-1741-1
Full-text Link:
http://ctr.utexas.edu/wp-content/uploads/pubs/1741_1.pdf
3.5 MB
______________________________________________________________________________________________________
The Connection Between a Steel Cap Girder and a Concrete Pier
25.
1995 ... Joseph M. Ales [and three others] · At congested highway interchanges, horizontal and vertical clearance requirements may dictate the use of narrow piers and shallow depth cap girders to accommodate the various roadways and overpasses. In situations such as this, the state of Texas uses horizontally curved steel plate girders
1302-2 F [CTR] ... FHWA/TX-96-1302-2F
Full-text Link:
http://library.ctr.utexas.edu/digitized/texasarchive/phase1/1302-2-ctr.pdf
3.7 MB
______________________________________________________________________________________________________
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