고력볼트 스플릿-티 인장접합부의 구조성능에 관한 실험적 연구 = An Experimental Study on the Structural Characteristics of Tension Joints with High-Strength Bolted Split-Tee Connection

국문 초록 (Abstract)

최근 구조물의 정확한 해석을 위하여 접합부의 강성에 반강접 개념이 도입되고 있다. 우리나라의 경우 반강접 접합부의 실험과 이론해석에 대한 연구가 산발적으로 진행되고 있으며, 체계적인 강구조설계를 진행할 정도의 연구성과를 내지는 못 한 상태이다. 그래서 스플릿-티(Split-Tee)를 이용한 접합부의 설계는 국내의 강종과 하중특성을 고려되지 못한 선진국의 연구자료에 의존하고 있는 실정이다. 본 논문은 F10T 고력볼트를 사용한 스플릿-티 접합부의 반강접 특성을 파악하고자, 기둥-보 접합부에 대한 반강접 연구 이전 단계로서 스플릿-티 인장접합부의 구조성능과 변형특성에 대해 실험을 통하여 규명하고자 한다. 플랜지 두께, 도장, 초기도입축력 및 하중가력패턴을 실험변수로 하였으며, 총 20개의 실험체를 제작하여 300ton UTM으로 인장실험을 수행하였다. 각 변수에 따른 스플릿-티 인장 접합부의 구조성능과 거동을 평가하였다.

다국어 초록 (Multilingual Abstract)

In general, most of the beam-to-column connections for steel structures are regarded as either rigid connections or pin connections. Recently, the concept of a semi-rigid connection was introduced for a correct analysis of steel structures. Several experimental and theoretical researches have been performed regarding the structural behaviors of frames and buildings with semi-rigid connections. The results are not well known, and structural frame/building has not been designed to introduce the concept of semi-rigid connections between a beam and column until this time. To resolve this, this research depends on design specifications prepared by other advanced countries for the design of buildings with semi-rigid connections. Such a specification, however, should incorporate domestic characteristics of steel material properties and load conditions. This paper deals with structural capacities and deformable behaviors for a split-T tensile connection with F10T high-strength bolts to investigate the structural characteristics of semi-rigid frames. The experimental parameters include the thickness of T-flanges, painted or not, preloaded or not, and load pushover pattern. A total of 20 specimens were fabricated and tested with a 300-ton UTM. The structural capacities and behavior for split-T tensile connections were evaluated on each research parameter.

참고문헌 (Reference)

1 "고력볼트 Split-Tee 접합부의 인장내력" 2003

2 "고력볼트 Split-Tee 인장 접합부의 구조특성" 2004

3 "The Stiffness Model of Revised Annex J of Eurocode 3 Third International Workshop on Connections in Steel Structures" 1995

4 "Stiffness Modeling of Bolted T-Stub Connection Components" 498-505, 2001

5 "STRUCTURAL STEEL SEMIRIGID CONNECTIONS" CRC Press LLC 2000

6 "Moment-Rotation Curves for Bolted Connections Journal of Structural Engineering" 112 : 615-635, 1986

7 "Modeling for Moment-Rotation Characteristics for End- Plate Connections" 122 (122): 1996

8 "Journal of Structural engineering" 91 (91): 101-128, 1965

9 "High Strength Bolts Subjects to Prying Journal of Structural Engineering" 100 (100): 351-772, 1974

10 "Handbook of bolts and bolted joints" 1998

11 "Guide to Design Criteria for Bolted and Riveted Joints SECOND EDITION" 1987

12 "Experimental Analysis of Bolted Connections Snug Versus Preloaded Bolts" 765-774, 1998

13 ". The Split-Tee Analogy in Bolted Splices and Beam- Column Connections Joint in Structural Steelwork" John wiley and Sons 2138-2157, 1981