03611nas|a2200385 i 4500 20260818213218.0 030815s2004 th uzm rtt 00| a1eng d .b11938961 AIT Thesis no.ST-04-03 Chanthrawan Suangka Safety assessment of Thailand's concrete traffic barriers using finite element crash simulation Pathum Thani, Thailand : Asian Institute of Technology, 2004 104 leaves Thesis ; no. ST-04-03 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology Thesis (M.Eng.) - Asian Institute of Technology, 2004 Concrete traffic barriers are devices which perform their purpose by redirecting errant vehicles away from roadside hazards. Construction of concrete barriers in Thailand follows the standard drawings of the Thailand Department of Highways, which are based on the AASHTO design guideline. However, reinforcement detail and some material properties of concrete barriers used in Thailand are different from those used in the USA. Size and weight of vehicles in Thailand are also dissimilar to the USA. Until now, full-scale crash testing and computer simulation of vehicle/concrete barrier impact to evaluate the safety performance of concrete barriers has not been conducted in Thailand. Finite element impact simulations by the LS-DYNA3D computer program were used to evaluate the safety of concrete traffic barriers of Thailand so that the number of expensive full-scale crash tests can be minimized. The first step was to develop a methodology for creating accurate finite element representation of concrete barriers. This objective was achieved by developing a finite element model of a US safety-shape concrete barrier design and using full-scale crash test data to validate the model. Once the fidelity and accuracy of the modeling methodology was proven, a finite element model of Thailand concrete barrier design was created and its safety performance was evaluated according to the safety performance evaluation criteria of NCHRP Report 350. The simulation results were that the Thailand concrete barrier was determined to be satisfactory in accordance with the safety criteria of NCHRP Report 350. Additionally, the 763-mm Thailand concrete barrier was analyzed with the result that the Thailand concrete barrier still provided a satisfactory safety performance for the small car and the pickup truck even if a 50-mm overlay was placed on the adjacent road surface. Finite element method Barry, William Joseph, Chairperson Worsak Kanok-Nukulchai, Examination Committee Tatsa, Elisha Zeev, Examination committee The STARR Foundation, U.S.A., Scholarship donor Asian Institute of Technology. Thesis ; no. ST-04-03 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B08982 .b11938961 mnait u 240422 0 040903 m a u 0 mnait mnarc 22 40 Barcode : 30050120818785 CREATED : 2014-04-30 RECORD # : i12795057 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 1 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050160068515 CREATED : 2016-08-04 RECORD # : i12933867 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 103780 103780 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no.ST-04-03 30050120818785 2026-08-18 21:32:18 3 2026-08-18 22 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no.ST-04-03 30050160068515 2026-08-18 21:32:18 1 2026-08-18 40