Research on Vehicle Impact Performance of Tridimensional Parking Structure Based on Multi-scale Model

HE Yongjun, JIANG Yuting, ZHOU Xukong

Abstract

 To study the dynamic responses of a tridimensional parking structure subjected to vehicle impact, a multi-scale and refined finite element models of the tridimensional parking structure were established based on ANSYS/LS-DYNA finite element software. The accuracy and efficiency of these two models were compared, and the applicability of the multi-scale model was verified. Based on the multi-scale model, the dynamic responses of the tridimensional parking structures were examined, and the influences of various factors, such as the impact velocity, vehicle mass, impact position, and working condition were investigated. Additionally, the impact force was studied and compared with the allowances given in Chinese code, American code, and European code. The results indicate that the vehicle impact has a local effect on the tridimensional garage; the impact velocity and vehicle mass have a great influence on the dynamic responses of the tridimensional garage, while the impact position and working condition present no obvious effect; the impact velocity has a greater influence on the impact force. However, when the impacted column is failed, the peak value of the impact force would not change with the increase of the impact velocity and vehicle mass; for the tridimensional parking structure subjected to vehicle impact, the values of the impact force given in Chinese code and Europe code are not reliable in some cases, but the value given in American code is safe.

 

Keywords: multi-scale model,  tridimensional parking structure,  vehicle impact, dynamic response,  impact force


Full Text:

PDF


References


HE Y J, YANG СС, ZHOU X H,et al. Structural forms, application and development of tрree –dimensional garages [J]. Journal of Architecture and Сivil Engineering, 2009, 26(4): 30—34. (In Chinese)

HE YJ, ZHOU X H,HE J Q. Seismic collapse fragility analyses of the 3D parking structure witch alternation story–height truss lateral– load –resisting esteem [J]. Journal of Hunan University (Natural Sciences),2014,41(4):10—15 ( In Chinese)

HE Y J,LIU X H,ZHOU X H. Research on arrangement of hooplayers of imitating bamboo drum type tridimenscional parking structure [J]. Journal of Hunan University (Natural Sciences), 2013,40(4):1—.7 (In Chinese)

HE Y J,GONG Z С, ZHOU X H. Seismic performance of tridimensional parking structure and parameter optimization of korizontal damping support [J]. Journal of Hunan University (Natural Sciences), 2018,45(1):37—43. (In Chinese)

TIAN L,DU B. Researsh on performances of reinforced concrete solemn under vehicle impact [J]. Journal of Shenyang Jianshu University (Natural Sciences),2015,31(1):1—10 ( In Chinese)

El–TABIL S,SEVERINO E,FONSECA P. Vehicle collision with bridge pies [J]. Journal of Bridge Engineering,2005,10(3):345— 353.

XIAO Y,CHEN L,XIAO G,et al. Tests for anti–ram bollards based on truck collision [J]. Journal of Vibration and Shock, 2013,32 (11):1—6. (In Chinese)

LIU X J,YANG J D, LAVSUND P. A study of influences of vehicle speed and front structure on pedestrian impact responses using mathematical models[J]. Traffic Injury Prevention,2002,3(1): 31—42.

TSANG H H,LAM N. Collapse of reinforced resonate solemn by vehicle impact [J]. Сomputer–Aided Civil and Infrastructure Engineering,2008,23(6):427—436.

YU M. Researsh on the capacity of different columns cashed by different types of cars [D]. Harbin: Shenzhen Graduate School, Harbin Institute of Technology,2007 (In Chinese)

СHENG X B,LI Y,LU X Z,et al. Numerical investigation on dynamics response of reinforced concrete columns subjected to impact loading[J].Engineering Mechanics,2015,32(2):53—62. (In Chinese)

HUO J S,ZHANG J Q,CHEN B S,et al. Dynamic behaviors of ho-trolled steel beams under drop weight impact loading[J]. Journal of Building Structures, 2011, 32(12):242—249. (In Chinese)


Refbacks

  • There are currently no refbacks.