This test was performed to verify the behavior of coupling beam using T-shaped steel for alternation of reinforcement details.

This test was performed to verify the failure mode of coupling beam using T-shaped steel for alternation of reinforcement details.

Coupling beam using L-shaped steel for alternation of reinforcement details was tested to evaluate energy dissipation capacity.

In recent year to improve the seismic behavior of conventional link beams, some efforts have been made by providing special reinforcement material, or using steel link beams as substitutes. In this study to facilitate the constructability and meanwhile ensure desirable seismic behavior, an innovative type of replaceable steel frame link beam was conceived and studied

Coupled shear wall systems, which consist of two or more in-plane shear walls interconnected with link beams, are frequently used in medium and high-rise buildings. In this study, an innovative type of replaceable steel angle for link beam, was conceived and studied.

As viable substitutes for reinforced concrete link beam, the use of alternlate link beam and composite coupling beams have also been investigated by several researchers. In this study to enhance the post-damage repair capability of the link beam, a different type of replaceable link beam with angle connection was investigated.

In this study aims at exploring the use of steel frame as an innovative method of improving the seismic performance of link beams. Also, the effect of diagonal reinforcement in link beam is evaluated in comparison to conventional reinforcement.

Recent earthquake of incidence is increasing. The purpose of this study was to investigate the strain characteristics of bare frame with non-seismic details. The experimental investigation consisted of a cyclic load tests on 1/3-scale models of one story-one bay bare reinforced concrete frame.

Earthquakes are very dangerous. They exemplify the true power of nature and cannot be avoid. Coupled shear walls are walls connected by moment- resisting members. The main subject investigated in this research project is the influence of steel fibers on the behaviour of coupling beams in shear.

This paper describes the analysis results of coupling beams using steel fiber reinforced concrete for comparison with measure behaviors. Analysis is performed by the finite element analysis program, Vector 2. The results show possibility that relieve complex detail of diagonally reinforced coupling beam.

태풍, 지진 등 external excitation에 의해 발생하는 Structural response를 실제와 가깝게 예측하기 위해서는 실제와 가장 유사한 구조해석모델을 작성하여 정확한 구조동특성을 산정하는 것이 중요하다.초고층 및 대공간에 대해서는 FE 모델 개선에 대한 기존 연구결과가 있으나 조적건물, 특히 성당건축물에 대해서는 현장계측과 FE 모델 개선에 대한 시도가 이루어지지 않았다. 본 논문에서는 성당건물을 대상으로 장기모니터링을 실시하고 이를 이용하여 대상 건물의 동특성을 분석하였다. 그리고, 태풍시 계측된 풍응답과 해석결과를 비교하여 풍응답해석의 신뢰성을 평가하였다.

This paper addresses the shear strength based on ACI 318-88 code and proposed equation by Park & Yun for steel fiber coupling beams containing steel fiber.

Based on the study of chloride migration coefficient and hydration heat evolution, it was found that the use of ternary blended cement was effective to achieve desired service life and minimum crack index. On the other hand, a high level of compressive strength is required for marine concrete mix design.

This paper addresses failure modes of steel fiber coupling beams containing steel fiber. It shows that steel fiber of coupling beams efficiently controlled increase of crack width by bridge action.

One of the most important processes to accurately predict structural responses is to evaluate accurate structural dynamic properties using finite element (FE) models. The analyzed structural dynamic properties usually show considerable discrepancies with the measured ones because structural details are commonly simplified in the FE models. To identify such discrepancies, FE models of them have been calibrated using the measured dynamic properties in previous researches. In this study, dynamic properties were measured for a historic cathedral and the FE model of it was calibrated using the measured results as a reference. Finally, a procedure of the FE model construction for masonry cathedral were tentatively proposed.

Hybrid coupled shear wall with steel coupling beam has often been used to resisting system of earthquake load and transverse load. This study addresses the strain characteristics of coupling beam in hybrid wall system.

This paper addresses the tensile strength of high performance concrete with fly-ash, silica fume. Test variables of this study is replacement ratio of admixture. Test results showed that 7 days tensile strength of specimen SF5 is higher than that of specimen FA25SF5. However, 28 days tensile strength of specimen SF5 and FA25SF5 had similar value.

The objective of this study is to investigate the elasticity of high performance concrete replacement blast furnace slag. Experimental variables of this study are modulus(100×100mm, 150×150mm). And test results were compared with existing equations.

Coupling beams of coupled shear wall systems are often the most critical members in medium or high rise buildings subject to seismic load or wind loads. To ensure the survival of shear walls under high-intensity cyclic loading, these beams, which normally have limited dimensions, should possess high deformability and good energy absorption while being able to resist large shear force. Experimental work are conducted to illustrate the design of special RC coupling beams using the proposed procedure reinforcement details.

The coupling beams provide transfer of vertical forces between adjacent shear walls in coupled shear wall system, which creates a frame-like coupling action that resists lots of the total overturning moment induced by the wind load or seismic load. The purpose of this study is to investigate the strain characteristics performance of coupling beams with headed bar.