Deflection Performance Evaluation of New Deep Deck with 300 mm Depth During Construction Loads

Choi, In-Rak; Lee, Gyung Ryul; Jeon, Sang Hyeon; Cha, Jae Kyung

doi:10.7781/kjoss.2021.33.5.305

Cited by 3 publications

(1 citation statement)

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“…To address these problems, this study proposed a new end detail whereby lattice truss girders are cut at the lattice foot, which are then laid on the supports as shown in Figure 1 b. From a structural perspective, a deck plate with a lattice foot at the end makes it possible for it to transfer the construction load and the concrete self-weight to support structures such as formwork for reinforced concrete (RC) beams or steel I-beams [ 1 , 2 , 3 ]. To stably transfer loads, deck plates should have enough flexural stiffness to limit a deflection at mid-span and to restrain slip at both ends [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

Deflection Test of Wire-Integrated Steel Deck Plates with Various End Details

et al. 2023

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This experimental study was conducted to evaluate the deflection performance of wire-integrated steel deck plates with various end details subjected to cumulative gravity loads. In general, when deck plates are installed in the Republic of Korea, vertical bars are mounted at the ends of the wire-integrated deck plates. However, this process can extend the construction time, thus incurring additional costs. Consequently, this study aimed to examine the structural performance of a deck plate when a lattice foot—rather than a vertical bar—is installed at the end of it. A total of nine specimens were prepared; the experimental variables included the end details, height of the lattice truss girder, and structure type. To evaluate the deflection performance, the cumulative gravity load (as a construction load) and a concrete self-weight were applied to the specimens, and the deflections of each specimen were measured. In the experimental results, the deflection values of the specimen with vertical bars were 0.9~6.1 mm, while those for the specimen without vertical bars were 0.8~5.0 mm. This means that a lattice foot exhibits better deflection performance than conventional end details. Additionally, the deflection of the specimens satisfied the deflection limits required in the relevant standards.

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Section: Introductionmentioning

confidence: 99%