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Cross-Frame and Diaphragm Layout and Connection Details

1.

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-S [CTR] ... PSR 0-5701-PSR ... Project Summary Report, 0-5701

Full-text Link:
http://ftp.dot.state.tx.us/pub/txdot-info/rti/psr/5701.pdf

______________________________________________________________________________________________________

Cross-Frame Connection Details for Skewed Steel Bridges

2.

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://www.utexas.edu/research/ctr/pdf_reports/0_5701_1.pdf
15 MB
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Implementation of Straight and Curved Steel Girder Erection Design Tools Construction : Summary

3.

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://www.utexas.edu/research/ctr/pdf_reports/5_5574_01_1.pdf
411 KB
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UT Lift 1.1

4.

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/software/index.cfm

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Guidance for Erection and Construction of Curved I-Girder Bridges : Technical Report -- revised

5.

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://www.utexas.edu/research/ctr/pdf_reports/0_5574_1.pdf
5.8 MB
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Impact of Overhang Construction on Girder Design

6.

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://www.utexas.edu/research/ctr/pdf_reports/0_5706_1.pdf
4.6 MB
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Guidelines for Design and Safe Handling of Curved I-Shaped Steel Girders

7.

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://www.utexas.edu/research/ctr/pdf_reports/0_5574_P1.pdf
90 KB
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Impact of Overhang Construction on Girder Design

8.

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 [CTR] ... PSR 0-5706 ... Project Summary Report, 0-5706

Full-text Link:
http://ftp.dot.state.tx.us/pub/txdot-info/rti/psr/5706.pdf

______________________________________________________________________________________________________

Curved Plate Girder Design for Safe and Economical Construction

9.

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 [CTR] ... PSR 0-5574 ... Project Summary Report, 0-5574

Full-text Link:
http://ftp.dot.state.tx.us/pub/txdot-info/rti/psr/5574.pdf

______________________________________________________________________________________________________

Implementation Project: Strengthening of a Bridge Near Hondo, Texas Using Post-Installed Shear Connectors

10.

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://www.utexas.edu/research/ctr/pdf_reports/5_4124_01_1.pdf

______________________________________________________________________________________________________

Bridge Strengthening Through the Use of Post-Installed Shear Connectors. Phase 1

11.

2009 ... Michael D. Engelhardt, Richard E. Klingner and 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 load capacity of existing bridge floor systems consisting of a non-composite concrete slab and steel

4124-01 PSR [CTR] ... PSR 5-4124-01-S ... Project Summary Report, 5-4124-01

Full-text Link:
http://ftp.dot.state.tx.us/pub/txdot-info/rti/psr/5-4124-01.pdf

______________________________________________________________________________________________________

Design of Composite Steel Beams for Bridges

12.

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://www.utexas.edu/research/ctr/pdf_reports/0_4811_1.pdf
207 KB
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Shear Connector Design for Composite Steel Beams - Strength Limit State

13.

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-s [CTR] ... PSR 0-4811 ... Project Summary Report, 0-4811

Full-text Link:
http://ftp.dot.state.tx.us/pub/txdot-info/rti/psr/4811.pdf

______________________________________________________________________________________________________

Strengthening Existing Non-Composite Steel Bridge Girders Using Post-Installed Shear Connectors

14.

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://www.utexas.edu/research/ctr/pdf_reports/0_4124_1.pdf

______________________________________________________________________________________________________

Bridge Strengthening Through the Use of Post-Installed Shear Connectors, Phase 1

15.

2006 ... RS: Michael D. Engelhardt; Researchers: Richard E. Klingner and 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 load capacity of existing bridge floor systems consisting of a non-composite concrete

4124-S [CTR] ... PSR 4124-S ... Project Summary Report, 5-4124-01

Full-text Link:
http://ftp.dot.state.tx.us/pub/txdot-info/rti/psr/4124.pdf

______________________________________________________________________________________________________

Preservation Alternatives for Historic Truss Bridges

16.

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-S [CTR] ... PSR 0-1741-S ... Project Summary Report, 0-1741

Full-text Link:
http://ftp.dot.state.tx.us/pub/txdot-info/rti/psr/0-1741-s.pdf

______________________________________________________________________________________________________

Analysis, Testing, and Load Rating of Historic Steel Truss Bridge Decks

17.

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://www.utexas.edu/research/ctr/pdf_reports/1741_2.pdf
9 MB
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Evaluation and Rehabilitation of Historic Metal Truss Bridges : A Case Study of an Off-System Historic Metal Truss Bridge in Shackelford County, Texas

18.

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://www.utexas.edu/research/ctr/pdf_reports/1741_3.pdf
3 MB
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Evaluation and Rehabilitation of Historic Metal Truss Bridges : Survey of Literature and Current Practices

19.

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://www.utexas.edu/research/ctr/pdf_reports/1741_1.pdf
3.5 MB
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The Connection Between a Steel Cap Girder and a Concrete Pier

20.

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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