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http://dx.doi.org/10.4334/JKCI.2016.28.5.545

Development of Short-span Precast Concrete Panels for Railway Bridge  

Seol, Dae-Ho (Department of Civil Engineering, Seoul National University of Science and Technology)
Lee, Kyoung-Chan (Korea Railroad Research Institute)
Kim, Ki-Hyun (Department of Civil Engineering, Seoul National University of Science and Technology)
Youn, Seok-Goo (Department of Civil Engineering, Seoul National University of Science and Technology)
Publication Information
Journal of the Korea Concrete Institute / v.28, no.5, 2016 , pp. 545-553 More about this Journal
Abstract
This paper presents experimental static test results of the precast concrete panels developed for short-span concrete bridge deck form. Different from LB-DECK, concrete rib attached to the bottom surface of concrete panel, and Top-bar is not used at the top surface of concrete panel. Number of concrete ribs and cross-section details of concrete rib are determined from the analytical results of parametric study considering the span length and the thickness of concrete bridge decks. Shear rebars are installed at the top surface of concrete panel for composite action between precast concrete panel and cast-in-place concrete. In order to evaluate the safety and the serviceability of the developed short-span concrete panel subjected to design load, static load test is conducted. Three test panels with span length of 1.6m are fabricated, and during the load test displacements, strains and cracks of test panels are measured and final failure modes are investigated. Serviceability of the test panels is evaluated based on the results of displacements, cracking load, and crack width at the design load level. Safety is also evaluated based on the comparison of the ultimate strength and the factored design load of test panels. Based on the test results, it is confirmed the short-span precast concrete panel satisfies the serviceability and safety regulated in design codes. In addition, the range of span length of concrete bridge decks for the short-span concrete panel is discussed.
Keywords
bridge deck; precast concrete panel; permanent deck form; crack;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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