Earticle

초록

영어

Composite girder is connected using stud connector between the concrete slab and the steel girder. Because of composite effect, the load carrying capacities in positive bending moment and rigidity of composite girder is bigger than those of the steel girder. However, because neutral-axis risen, curvature of the composite girder is smaller than that of the steel girder. This paper analyzed the relation of composite effect and neutral-axis by variation of the steel girders. The conclusions derived from this study are as follows. 1) The load carrying capacities of composite girder in positive bending moment rise from 20% to 80% than those of the steel girder. However, cases that area of the steel girder is over 200m2 can not expected composite effect. 2) When composite effect is over 1.4 times of steel girder, neutral-axis rise to the upper flange. 3) Also, in cases that area of the steel girder is over 200m2, curvature of steel girder is less than that of the steel girder.

목차

Abstract
 1. 서 론
 2. 합성보의 단면성능
  2.1 합성보의 유효폭
  2.2 합성보의 중립축위치와 등가단면2차모멘트
  2.3 합성보의 정모멘트역 설계휨내력
 3. 콘크리트 슬래브에 의한 합성효과
  3.1 단면산정 및 파라메타
  3.2 중립축과 합성보 정모멘트역 내력
  3.3 곡률과 합성보 정모멘트역 내력
  3.4 단면 2차모멘트와 합성보 정모멘트역 내력
  3.5 철골보 단면적과 합성보 정모멘트역 내력
 4. 결 론
 참고문헌

저자

• 황성철 [ Hwang, Sung-Chul | 부산대 건축학부 BK21 신진연구원, 공학박사 ]
• 양일승 [ Yang, II-Seung | 동신대 건축공학부 전임강사, 공학박사 ]

참고문헌