| Title |
A Numerical and Experimental Study on Structural Performance of Simplified Composite Steel I-Beam Bridge |
| Authors |
박종섭(Park, Jong Sup) ; 김재흥(Kim, Jae Heung) ; 이선호(Lee, Son Ho) |
| DOI |
https://doi.org/10.12652/Ksce.2012.32.3A.161 |
| Keywords |
초간편 강합성 교량;압연형강;교량 설계;하중분배계수;교량실험 simplified composite bridge;rolled beam(H-beam);bridge design;load distribution factor;bridge experiment |
| Abstract |
This paper presents the safety and strength of simplified composite H-beam panel bridges (SCHPBs) using 3-dimentional finite-element program, ABAQUS (2007) and experimental tests. Two finite-element models (one-steel-girder-and-composite-deck model and four-steel-girder-and-wide-composite-deck model) were reviewed to predict the strength and load distribution factor (LDF) values of the composite bridges. Based on the results of the finite-element analyses, the behaviors of the two models were investigated, and deflection and strain gauges for the experimental specimens were set up to obtain the ultimate strengths and the LDF values. The ultimate strength of the one-steel-girder-and-composite-deck specimen was estimated to be 840 kN. The yield and plastic moments of the four-steel-girder-and-wide-composite-deck specimen were obtained to be 2.4 and 4.1 times the design moment based on the live loading condition of the Korea Bridge Design Specifications (2005). The SCHPB were found to have enough strength for safety under and after construction. |