UNIST · Engineering
이 교수의 연구실은 철근 콘크리트 구조물의 거동 해석과 성능 평가에 초점을 맞추고 있으며, 특히 고성능 콘크리트 및 자기치유 기술을 활용한 구조물의 내구성 향상에 기여하고자 합니다. 유한요소 해석 기반의 정밀한 구조 해석 기법 개발과 함께, 전도성 콘크리트를 활용한 자가 난방 및 콘크리트의 자가 치유 메커니즘에 대한 실험적·비파괴적 평가 방법도 함께 연구하고 있습니다. 특히 지진 하중에 대한 구조적 거동, 접합부 성능, 그리고 실용적 설계 응용을 고려한 모델링 기법 개발이 핵심 연구 주제입니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
In seismic analysis of moment-resisting frames, beam-column connections are often modeled with rigid joint zones. However, it has been demonstrated that, in ductile reinforced concrete (RC) moment-resisting frames designed based on current codes (to say nothing of older non-ductile frames), the joint zones are in fact not rigid, but rather undergo significant shear deformations that contribute greatly to global drift. Therefore, the "rigid joint" assumption may result in misinterpretation of the
This study aimed to investigate the self-heating characteristics of electrically conductive cement composites (ECCCs) and propose an effective and affordable mix design for ECCC blocks that are applicable to the accelerated curing of concrete with carbon black and carbon fibers employed as conductive agents. Twelve mix proportions were prepared by varying the carbon black and carbon fiber contents. A voltage application protocol was designed and used to examine the self-heating capacities of the
At the ACI Fall 2008 Convention, Joint ACI-ASCE Committee 447, Finite Element Analysis of Reinforced Concrete Structures, and ACI Committee 118, Use of Computers, will cosponsor a two-part session titled ???Practical Use of Finite Element Analysis in the Design of Concrete Structures.??? One of the presentations in the session will cover the modeling of a 25-story hotel building being constructed together with a 60-story residential tower in New York City. The project and its modeling are discus
Recently, self-healing technologies have emerged as a promising approach to extend the service life of social infrastructure in the field of concrete construction. However, current evaluations of the self-healing technologies developed for cementitious materials are mostly limited to lab-scale experiments to inspect changes in surface crack width (by optical microscopy) and permeability. Furthermore, there is a universal lack of unified test methods to assess the effectiveness of self-healing te
Four two-thirds-scale reinforced concrete edge beam–column–slab subassemblies (two concentric and two eccentric connections) were tested under quasi-static cyclic lateral loading. Each subassembly represented a cruciform connection in an exterior moment-resisting frame with a monolithic floor slab on one side only, loaded in the longitudinal direction of the edge-beams. The tests explored the effect of eccentricity between beam and column centrelines, and the effect of floor slabs, on the struct
