매입강판 용접열에 의한 고강도 콘크리트 접합부 구조성능 영향평가에 관한 실험적 연구 (Experimental Study for Structural Behavior of Embed Plate into Concrete Subjected to Welding Heat Input)
| Author(s): |
Kyung Soo Chung
Ki Myon Kim (김기면) Do Hwan Kim Jin Ho Kim |
|---|---|
| Medium: | journal article |
| Language(s): | Korean |
| Published in: | Journal of Korean Society of Steel Construction (한국강구조학회 논문집), October 2013, n. 5, v. 25 |
| Page(s): | 569-578 |
| DOI: | 10.7781/kjoss.2013.25.5.569 |
| Abstract: | In a super-tall building construction, thick and large-sized embed plates are usually used to connect mega structural steel members to RC core wall or columns by welding a gusset plate on the face of the embed plate with T-shape. A large amount of heat input accumulated by weld passes causes the plates to expand or deform. In addition, the temperature of concrete around the plates also could be increased. Consequently, cracks and spalls occur on the concrete surface. In this study, the effect of weld heat on embed plates and 80MPa high strength concrete is investigated by considering weld position (2G and 3G position), edge distance, concrete curing time, etc. Measured temperature of the embed plates was compared with the transient thermal analysis results. Finally, push-out tests were performed to verify and compare the shear studs capacity of the embed plate with design requirement. Test result shows that the shear capacity of the plate is reduced by 14%-19% due to the weld heat effect and increased as the concrete curing time is longer. |
- About this
data sheet - Reference-ID
10326451 - Published on:
21/07/2019 - Last updated on:
28/07/2019
Structurae cooperates with
