Nchrp Report 350 Test 3 11 Of The Texas Type T411 Bridge Rail PDF Download
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Author | : Eugene Buth |
Publisher | : |
Total Pages | : 48 |
Release | : 1998 |
Genre | : Bridge railings |
ISBN | : |
Download NCHRP Report 350 Test 3-11 of the Texas Type T411 Bridge Rail Book in PDF, ePub and Kindle
Author | : Hayes E. Ross |
Publisher | : Transportation Research Board |
Total Pages | : 103 |
Release | : 2002 |
Genre | : Four-wheel drive vehicles |
ISBN | : 0309067502 |
Download Evaluation of Roadside Features to Accommodate Vans, Minivans, Pickup Trucks, and 4-wheel Drive Vehicles Book in PDF, ePub and Kindle
Author | : Roger P. Bligh |
Publisher | : |
Total Pages | : 140 |
Release | : 2007 |
Genre | : Roads |
ISBN | : |
Download Initial Assessment of Compliance of Texas Roadside Safety Hardware with Proposed Update to NCHRP Report 350 Book in PDF, ePub and Kindle
Author | : Eric A. Keller |
Publisher | : |
Total Pages | : 78 |
Release | : 2003 |
Genre | : Bridge railings |
ISBN | : |
Download Guidelines for Attachments to Bridge Rails and Median Barriers Book in PDF, ePub and Kindle
The objective of the research project was to collect crash test data relating to bridge rails and median barriers, to collect information about common attachments to traffic barriers, and to evaluate this information for the purpose of developing guidelines for the design and placement of traffic barrier attachments. A comprehensive review of full-scale crash testing of bridge rails and median barriers was conducted in order to establish Zones of Intrusion (ZOIs) for traffic barriers. The primary goal of this review was to identify the extent that a pickup or single-unit truck intrudes over the top of a traffic barrier during a vehicular impact.
Author | : |
Publisher | : |
Total Pages | : 102 |
Release | : 2004 |
Genre | : Bridge railings |
ISBN | : |
Download Testing and Evaluation of the Florida Jersey Safety Shaped Bridge Rail Book in PDF, ePub and Kindle
The objectives of this portion of the project were to: 1) determine if any or all of the three subject variants of the 32-inch (813 mm) Jersey safety shaped bridge railing comply with the requirements of the AASHTO LRFD Bridge Design Specifications and National Cooperative Highway Research Program (NCHRP) Report 350 Test Level 4 (TL4), and 2) provide recommended retrofit schemes, if deemed technically and economically feasible, to bring into compliance the railings that do not comply. Full or partial replacement schemes may also be recommended as appropriate. The most direct approach for accomplishing the objectives of this task was to perform a full-scale crash test of the most critical design. If that railing performed satisfactorily, the railing would be acceptable by AASHTO LRFD Specifications. The strength test was selected, NCHRP Report 350 test 4-12, a single-unit van-type truck weighing 17,6211b (8000 kg). The TL-4 vehicle is a single-unit box-van truck impacting the railing at 15 degrees and 49.7 mi/h (80 kmIh). While containment is required, overturning of the vehicle is an acceptable test outcome. However, Test Level 3 (TL-3) is a 4405-lb (2000 kg) pickup impacting the railing at 25 degrees and 62.2 mi/h (l00 kmIh). This test requires both containment and stability, and non-overturning. Since some breakage of the parapet is possible, potential for vehicle snagging is likely. Vehicle snagging can contribute to vehicle instabilities in the redirection sequence and potential rollover. Therefore, researchers chose both TL-4 and TL-3 tests. According to the results of this project, no field retrofits or replacements of the Florida Jersey safety shaped bridge rails, depicted in the Florida DOT Index 799, are warranted since the most critical 32-inch (813 mm) Jersey safety shaped bridge railing complied with the requirements of the AASHTO LRFD Bridge Design Specifications and NCHRP Report 350 Test Levels 3 and 4.
Author | : Dean C. Alberson |
Publisher | : |
Total Pages | : 54 |
Release | : 2004 |
Genre | : Bridge railings |
ISBN | : |
Download TL-4 Crash Testing of the F411 Bridge Rail Book in PDF, ePub and Kindle
Texas Department of Transportation (TXDOT) and Florida Department of Transportation (FDOT) frequently receive requests to provide aesthetically pleasing traffic rails for use on select bridges and roadways. TxDOT, in response to providing context sensitive design alternatives, initiated a project to develop additional aesthetically pleasing rail alternatives. Under a previous TxDOT project, the F411 bridge rail was constructed and crash tested to Test Level 3 (TL-3). The TL-3 test is a 4405-lb (2000 kg) pickup impacting the railing at 25 degrees and 62.2 mi/h (100 krn/h). This test requires both containment and stability, and non-overturning. Since some breakage of the parapet is possible, potential for vehicle snagging is likely. Vehicle snagging can contribute to vehicle instabilities in the redirection sequence and potential rollover. The TxDOT F411 bridge rail contained and redirected the vehicle, which remained upright during and after the collision period. The bridge rail met the required specifications for NCHRP Report 350 test 3-11. The objective of this research is the full-scale crash test and evaluation of the F411 to Test Level 4 (TL-4). The most direct approach for accomplishing the objectives of this task is to perform a full-scale TL-4 crash test of this railing design. The TL-4 vehicle is a single-unit box-van truck impacting the railing at 15 degrees and 49.7 mi/h (80 krn/h). While containment is required, overturning of the vehicle 90 degrees is an acceptable test outcome. The TxDOT F411 bridge rail performed acceptably for NCHRP Report 350 test 4-12. Based on the performance of the F411 bridge rail in the full-scale crash test to TL-4 test conditions, the F411 may be used where containment of 18,000 lb single-unit trucks is desired.
Author | : |
Publisher | : |
Total Pages | : 80 |
Release | : 1989 |
Genre | : Aesthetics |
ISBN | : |
Download Aesthetically Pleasing Concrete Beams and Posts Bridge Rail, Texas Type T411 Book in PDF, ePub and Kindle
Author | : King K. Mak |
Publisher | : |
Total Pages | : 66 |
Release | : 1997 |
Genre | : Automobiles |
ISBN | : |
Download Testing and Evaluation of the W-beam Transition (on Steel Posts with Timber Blockouts) to the Vertical Flared Back Concrete Bridge Parapet Book in PDF, ePub and Kindle
The crash test reported herein was performed in an effort to evaluate a modified W-beam transition design (on steel posts with timber blockouts) to the vertical flared back concrete bridge parapet according to NCHRP Report 350 guidelines. The crash test performed corresponded to NCHRP Report 350 test designation 3-11 involving a 2000P test vehicle impacting the transition at a nominal speed and angle of 100 km/h and 25 degrees.
Author | : |
Publisher | : |
Total Pages | : 62 |
Release | : 1989 |
Genre | : Bridge railings |
ISBN | : |
Download Crash Test of Texas T202 Bridge Rail Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 84 |
Release | : 2002 |
Genre | : Bridge railings |
ISBN | : |
Download Development of a Low-profile Bridge Rail for Test Level 2 Applications Book in PDF, ePub and Kindle
A low-profile bridge rail was developed for installations where pedestrians and/or site restrictions prevent the use of conventional bridge rails with transitions. The bridge rail design was constructed using a 22.86-m long reinforced concrete parapet.