原文传递
Development of Standards for Placement of Steel Guardrail Posts in Rock. Final rept. 1998-2003.
| 题名： | Development of Standards for Placement of Steel Guardrail Posts in Rock. Final rept. 1998-2003. |
| 作者： | Herr-J.E.; Rohde-J.R.; Sicking-D.L.; Reid-J.D.; Faller-R.K. |
| 关键词： | *Guardrails-; *Steel-beams; *Soil-mechanics; *Barrier-collision-tests.;Highway-safety; Roadside-hazards; Crash-tests; Concrete-structures; Standards-; Compliance-tests; Performance-evaluation; Impact-tests; Recommendations-; Guardrail-posts; Rocks-; Aggregates-; Accident-research; Design-. |
| 摘要： | A steel-post W-beam guardrail system was developed for installation in rock-soil foundations. The guardrail system was constructed with a 2.66-mm (12-gauge) thick W-beam rail, 53.34 m in length. The W-beam guardrail was supported by twenty-seven W152x13.4 by 1,346-mm long steel posts, spaced at 1,905 mm on center. The posts were installed in drilled holes in concrete, constructed by drilling three 203-mm diameter holes on 165-mm centers to a depth of 610 mm. The drilled holes were backfilled with compacted ASTM C33 coarse aggregate, size no. 57. One full-scale vehicle crash test, using a -ton pickup truck, was performed on the W-beam guardrail system. The test was conducted and reported in accordance with the requirements specified in the National Cooperative Highway Research Program (NCHRP) Report No. 350, Recommended Procedures for the Safety Performance Evaluation of Highway Features. The safety performance of the W-beam guardrail system with post placed in rock was determined to be acceptable according to the Test Level 3 (TL-3) evaluation criteria specified in NCHRP Report No. 350. Further, guardrail post placement recommendations were also developed for situations where rock is located below the surface. These recommendations were developed through an analysis of bogie testing of posts. |
| 报告类型： | 科技报告 |
相关文献
- Development of the 'Midwest Guardrail System' (MGS) for Standard and Reduced Post Spacing and in Combination with Curbs.
- DEVELOPMENT OF A FLARED END TERMINAL THAT MEETS CRITERIA OF NCHRP REPORT 350: THE REGENT SYSTEM.
- DESIGN AND DEVELOPMENT OF STEEL BREAKAWAY POSTS.
- Development of the 'Midwest Guardrail System' (MGS) for Standard and Reduced Post Spacing and in Combination with Curbs. Final research rept. 1999-04.
- Development of a Rock Strength Database.
- Highway Facility Design, 2004. Including 2004 Thomas B. Deen Distinguished Lecture.
检索历史
应用推荐
