Midwest guardrail system W-beam-to-thrie-beam transition
KA Polivka, BA Coon, DL Sicking… - Transportation …, 2007 - journals.sagepub.com
KA Polivka, BA Coon, DL Sicking, RK Faller, RW Bielenberg, JR Rohde, JD Reid
Transportation research record, 2007•journals.sagepub.comFor longitudinal barriers, it is common practice to use a standard W-beam guardrail along
the required highway segments and to use a stiffened thrie-beam guardrail in a transition
region near the end of a bridge. As a result of the differences in rail geometries, a W-beam-to-
thrie-beam transition element is typically used to connect and provide continuity between the
two rail sections. However, the W-beam-to-thrie-beam transition element has not been
evaluated according to current impact safety standards. Therefore, an approach guardrail …
the required highway segments and to use a stiffened thrie-beam guardrail in a transition
region near the end of a bridge. As a result of the differences in rail geometries, a W-beam-to-
thrie-beam transition element is typically used to connect and provide continuity between the
two rail sections. However, the W-beam-to-thrie-beam transition element has not been
evaluated according to current impact safety standards. Therefore, an approach guardrail …
For longitudinal barriers, it is common practice to use a standard W-beam guardrail along the required highway segments and to use a stiffened thrie-beam guardrail in a transition region near the end of a bridge. As a result of the differences in rail geometries, a W-beam-to-thrie-beam transition element is typically used to connect and provide continuity between the two rail sections. However, the W-beam-to-thrie-beam transition element has not been evaluated according to current impact safety standards. Therefore, an approach guardrail transition system, including a W-beam-to-thrie-beam transition element, was constructed and crash tested. The transition system was attached to Missouri's thrie-beam and channel bridge railing system.
Sage Journals