일련의 주행 차량에 의한 현수교의 충격계수 평가 (Evaluation of Impact Factor in Suspension Bridges under A Series of Moving Vehicles)
| Author(s): |
Yong Myung Park
Dong Hyun Kim Hee Soon Kim Jae Bong Park |
|---|---|
| Medium: | journal article |
| Language(s): | Korean |
| Published in: | Journal of Korean Society of Steel Construction (한국강구조학회 논문집), October 2014, n. 5, v. 26 |
| Page(s): | 485-498 |
| DOI: | 10.7781/kjoss.2014.26.5.485 |
| Abstract: | In this paper, vehicle-bridge interaction analysis under a series of moving vehicles to simulate a lane load was performed to estimate impact factor of the main cable, hanger and girder for the selected suspension bridges with 404m and 1545m main span. Korea Bridge Design Code(Limit State Design) was selected for the live model in which KL-510 truck was modeled 6-d.o.f. vehicle and a lane load was simulated by a series of single-axle vehicles. For the 404m main span bridge, hinge-type and floating-type girders at the tower were considered to examine the impact factor according to the connection and supporting type of the girders. The parameters considered herein are the types of live load-a truck only and a truck plus lane load, eccentricity of moving vehicles, road surface roughness and vehicle speed. The road surface roughness was randomly generated based on ISO 8608 and it was applied to the truck only. The impact factors were also evaluated by using the influence line method that is commonly used in cable-supported bridges and compared with those from vehicle-bridge interaction analysis. |
| Keywords: |
suspension bridge
|
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