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한국공간구조학회> 한국공간구조학회지

한국공간구조학회지 update

Journal of the Korean association for shell and spatial structures

  • : 한국공간구조학회
  • : 공학분야  >  건축공학
  • : KCI등재
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  • : 연속간행물
  • : 계간
  • : 1598-4095
  • : 2287-7401
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수록정보
수록범위 : 1권1호(2001)~21권2호(2021) |수록논문 수 : 837
한국공간구조학회지
21권2호(2021년 06월) 수록논문
최근 권호 논문
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KCI등재

1제주지역 비닐하우스의 내재해성 평가

저자 : 고동우 ( Ko Dong Woo )

발행기관 : 한국공간구조학회 간행물 : 한국공간구조학회지 21권 2호 발행 연도 : 2021 페이지 : pp. 4-11 (8 pages)

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KCI등재

2콘크리트 충전 튜브형 상부플랜지를 갖는 조립 H-Beam (TH Beam) 적용 사례

저자 : 정석재 ( Suk-jae Jung ) , 권순규 ( Soon-kyu Kwon ) , 이재환 ( Jae-hwan Lee )

발행기관 : 한국공간구조학회 간행물 : 한국공간구조학회지 21권 2호 발행 연도 : 2021 페이지 : pp. 12-17 (6 pages)

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3실리콘 점성 감쇠장치를 이용한 다층형 토글감쇠시스템 내진 보강 기술

저자 : 류동일 ( Ryu Dongil ) , 류재호 ( Ryu Jaeho )

발행기관 : 한국공간구조학회 간행물 : 한국공간구조학회지 21권 2호 발행 연도 : 2021 페이지 : pp. 18-25 (8 pages)

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4인장철근배근량에 따른 U-플랜지 트러스 복합보의 휨 내력에 관한 실험연구

저자 : 오명호 ( Oh Myoung Ho ) , 박성진 ( Park Sung Jin ) , 김영호 ( Kim Young Ho )

발행기관 : 한국공간구조학회 간행물 : 한국공간구조학회지 21권 2호 발행 연도 : 2021 페이지 : pp. 33-40 (8 pages)

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For the practical application of U-flanged Truss Hybrid beams, the flexural capacity of hybrid beams with end reinforcement details using vertical steel plates was verified. The bending test of U-flanged Truss Hybrid beams was performed using the same top chord under the compressive force, but with the thickness of the bottom plate and the amount of tensile reinforcement. The initial stiffness and maximum load of the specimen with tensile reinforcement have a higher value than that of the specimen without tension reinforcement, but the more tensile reinforcement, the greater the load decrease after the maximum load. In the case of the specimen with tensile reinforcement, because the test result value is 76% to 88% when compared with the flexural strength according to Korea Design Code, the safety of the U-flanged Truss Hybrid beam with the same details of the specimens can't ensure. Therefore, the development of new details is required to ensure that the bottom steel plate and the tensile reinforcement can undergo sufficient tensile deformation.

KCI등재

5스마트 TMD 제어를 위한 강화학습 알고리즘 성능 검토

저자 : 강주원 ( Kang Joo-won ) , 김현수 ( Kim Hyun-su )

발행기관 : 한국공간구조학회 간행물 : 한국공간구조학회지 21권 2호 발행 연도 : 2021 페이지 : pp. 41-48 (8 pages)

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A smart tuned mass damper (TMD) is widely studied for seismic response reduction of various structures. Control algorithm is the most important factor for control performance of a smart TMD. This study used a Deep Deterministic Policy Gradient (DDPG) among reinforcement learning techniques to develop a control algorithm for a smart TMD. A magnetorheological (MR) damper was used to make the smart TMD. A single mass model with the smart TMD was employed to make a reinforcement learning environment. Time history analysis simulations of the example structure subject to artificial seismic load were performed in the reinforcement learning process. Critic of policy network and actor of value network for DDPG agent were constructed. The action of DDPG agent was selected as the command voltage sent to the MR damper. Reward for the DDPG action was calculated by using displacement and velocity responses of the main mass. Groundhook control algorithm was used as a comparative control algorithm. After 10,000 episode training of the DDPG agent model with proper hyper-parameters, the semi-active control algorithm for control of seismic responses of the example structure with the smart TMD was developed. The simulation results presented that the developed DDPG model can provide effective control algorithms for smart TMD for reduction of seismic responses.

KCI등재

6새로운 형태의 선설치 인서트 앵커에 대한 단조 인장 및 전단강도 평가

저자 : 전주성 ( Jeon Ju-seong ) , 김지훈 ( Kim Ji-hoon ) , 오창수 ( Oh Chang-soo ) , 이창환 ( Lee Chang-hwan )

발행기관 : 한국공간구조학회 간행물 : 한국공간구조학회지 21권 2호 발행 연도 : 2021 페이지 : pp. 49-56 (8 pages)

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The damage to non-structural elements in buildings has been increasing due to earthquakes. In Korea, post-installed anchors produced overseas have been mainly used for seismic anchorage of non-structural components to structures. Recently, a new cast-in-place concrete insert anchor installed in concrete without drilling has been developed in Korea. In this paper, an experimental study was conducted to evaluate the tensile and shear strengths of the newly developed anchor under monotonic load. The failure modes of the tension specimens were divided into concrete breakout failure and steel failure, and all shear specimens showed steel failure. In both tension and shear, the maximum loads of specimens were greater than the nominal strengths predicted by the concrete design code (KDS 14 20 54). As a result, it is expected that the current code can also be used to calculate the strength of the developed cast-in anchor.

KCI등재

7FRP 기둥 재킷 시스템이 보강된 지진 취약 철근콘크리트 건축물의 유한요소해석

저자 : 신지욱 ( Shin Jiuk ) , 이상열 ( Lee Sang-youl ) , 지동현 ( Ji Dong-hyun )

발행기관 : 한국공간구조학회 간행물 : 한국공간구조학회지 21권 2호 발행 연도 : 2021 페이지 : pp. 57-66 (10 pages)

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This study develops finite element models for seismically-deficient reinforced concrete building frame retrofitted using fiber-reinforced polymer jacketing system and validates the finite element models with full-scale dynamic test for as-built and retrofitted conditions. The bond-slip effects measured from a past experimental study were modeled using one-dimensional slide line model, and the bond-slip models were implemented to the finite element models. The finite element model can predict story displacement and inter-story drift ratio with slight simulation variation compared to the measured responses from the full-scale dynamic tests.

KCI등재

8폭발 하중에 대한 FRP 재킷 시스템이 보강된 철근콘크리트 기둥 해석 모델 개발

저자 : 신지욱 ( Shin Jiuk )

발행기관 : 한국공간구조학회 간행물 : 한국공간구조학회지 21권 2호 발행 연도 : 2021 페이지 : pp. 67-79 (13 pages)

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This paper aims to develop numerical models for seismically-deficient reinforced concrete columns retrofitted using a fiber-reinforced polymer jacketing system under blast loading scenarios. To accomplish the research goal, a coupling model reproducing blast loads was developed and implemented to the column model. The column model was validated with a past experimental study, and the blast responses were compared to the numerical responses produced by past researchers. The validated modeling method was implemented to the non-retrofitted and retrofitted column models to estimate the effectiveness of the retrofit system. Based on the numerical responses, the retrofit system can significantly reduce the peak dynamic responses under a given blast loading scenario.

KCI등재

9비선형 거동을 하는 비좌굴가새의 유한요소모델 검증

저자 : 김대홍 ( Kim Dae-hong ) , 유정한 ( Yoo Jung-han )

발행기관 : 한국공간구조학회 간행물 : 한국공간구조학회지 21권 2호 발행 연도 : 2021 페이지 : pp. 81-88 (8 pages)

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In this paper, nonlinear finite element analysis was conducted based on the experimental results on buckling restrained brace. The reliability of the analytical model was verified by comparing the results of experimental studies with hysteresis loop, bi-linear curve, cumulative energy dissipation capacity, and equivalent viscous damping. A valid finite element model has been secured and will be used as basic data for finite element analysis of buckling restrained braces in the future.

KCI등재

10하이브리드 메타휴리스틱 기법을 사용한 트러스 위상 최적화

저자 : 이승혜 ( Lee Seunghye ) , 이재홍 ( Lee Jaehong )

발행기관 : 한국공간구조학회 간행물 : 한국공간구조학회지 21권 2호 발행 연도 : 2021 페이지 : pp. 89-97 (9 pages)

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This paper describes an adaptive hybrid evolutionary firefly algorithm for a topology optimization of truss structures. The truss topology optimization problems begins with a ground structure which is composed of all possible nodes and members. The optimization process aims to find the optimum layout of the truss members. The hybrid metaheuristics are then used to minimize the objective functions subjected to static or dynamic constraints. Several numerical examples are examined for the validity of the present method. The performance results are compared with those of other metaheuristic algorithms.

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