| 000 | 03611nas|a2200385 i 4500 | ||
|---|---|---|---|
| 005 | 20260818213218.0 | ||
| 008 | 030815s2004 th uzm rtt 00| a1eng d | ||
| 035 | _a.b11938961 | ||
| 099 | 9 | _aAIT Thesis no.ST-04-03 | |
| 100 | 0 | _aChanthrawan Suangka | |
| 245 | 1 | 0 | _aSafety assessment of Thailand's concrete traffic barriers using finite element crash simulation |
| 260 |
_aPathum Thani, Thailand : _bAsian Institute of Technology, _c2004 |
||
| 300 | _a104 leaves | ||
| 490 | 1 |
_aThesis ; _vno. ST-04-03 |
|
| 500 | _aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology | ||
| 502 | _aThesis (M.Eng.) - Asian Institute of Technology, 2004 | ||
| 520 | _aConcrete 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. | ||
| 650 | 0 | _aFinite element method | |
| 700 | 1 |
_aBarry, William Joseph, _eChairperson |
|
| 700 | 0 |
_aWorsak Kanok-Nukulchai, _eExamination Committee |
|
| 700 | 1 |
_aTatsa, Elisha Zeev, _eExamination committee |
|
| 710 | 2 |
_aThe STARR Foundation, U.S.A., _eScholarship donor |
|
| 810 | 2 |
_aAsian Institute of Technology. _tThesis ; _vno. ST-04-03 |
|
| 856 |
_3Full-Text _u http://203.159.5.9/ait-thesis/detail.php?q=B08982 |
||
| 907 |
_a.b11938961 _bmnait _cu |
||
| 902 | _a240422 | ||
| 998 |
_b0 _c040903 _dm _ea _fu _g0 |
||
| 945 | _lmnait | ||
| 945 | _lmnarc | ||
| 942 | _c22 | ||
| 942 | _c40 | ||
| 909 |
_aBarcode : 30050120818785 _bCREATED : 2014-04-30 _cRECORD # : i12795057 _dLPATRON : 0 _eLCHKIN : - _f# RENEWALS : 0 _g# OVERDUE : 0 _hIUSE3 : 1 _iTOT CHKOUT : 0 _jTOT RENEW : 0 |
||
| 909 |
_aBarcode : 30050160068515 _bCREATED : 2016-08-04 _cRECORD # : i12933867 _dLPATRON : 0 _eLCHKIN : - _f# RENEWALS : 0 _g# OVERDUE : 0 _hIUSE3 : 0 _iTOT CHKOUT : 0 _jTOT RENEW : 0 |
||
| 999 |
_c103780 _d103780 |
||