철근콘크리트 유공보에 관한 연구

• 영문명: A Study on Reinforced Concrete Beams with Perforation
• 발행기관: 강원대학교 산업기술연구소
• 저자명: 박경호(Park Kyong Ho)
• 간행물 정보: 『산업기술연구』vol.21, 7~14쪽, 전체 8쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2001.09.30

영문 초록

In building structure, the story height can be minimized by providing openings in beams which serves for the utility equipments passing through. The dead space in false ceiling thus put to economical use in the form of a substantial reduction in materials and construction cost. In the case of steel structure, there is no critical risk in the structural strength because of reinforcing methods of stiffness and steel plate but in the case of reinforced concrete structure, proper provision should be made in designing these openings, otherwise there is a risk that these opening will possibly weaken the structural strength of the building frame to a critical degree. In this paper, for the numerical analysis of the reinforced concrete beams with circular opening in the web, expecting stress concentration of the circular opening, reinforcing methods were studied. Twenty test pieces with each different reinforcing methods were tested and their resisting forces were defined. From the numerical analysis and test results, the followings were founded; ① high shear stress distributed around the openings reduce the shearing strength, ② from the numerical analysis, the maximum tensile stress occurred at opening nodes 1,7, these phenomena were agreed with the test results, ③ reinforcing method around openings haute to carried out for stopping diagonal cracks, and ④both, by steel plate, and wire mesh, are effective reinforcing methods.

목차

Abstract

Ⅰ. 서론

Ⅱ. 수치해석

Ⅲ. 실험

Ⅳ. 고찰

Ⅴ. 결론

參考文獻

키워드

보강방법 관통구멍 전단내력 reinforcing method perforation shear strength