http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
이차돈(Lee, Cha-Don),김현(Kim, Hyun) 대한건축학회 2011 大韓建築學會論文集 : 構造系 Vol.27 No.11
The model incorporating different strain components of concrete and steel in high temperature has been developed to simulate the axial deformation of the wall in fire. Comparisons between the test results and the model predictions showed that the developed model was able to predict the general tendency of the axial deformation of the wall in fire. From the parametric studies with the developed model, it was found that except concrete compressive strength, both wall thickness and the ratio of the externally applied axial load to nominal strength of the wall could affect the fire resistance. Based on the results from the developed model, it was suggested that further refinement on the code provisions be made for the fire resistance to include the effect of relative magnitude of the axial load to the wall strength.
화해를 입은 철근 콘크리트 전단벽체의 실용 잔존내력비 식
이차돈(Lee Cha-Don),박재완(Park Jae-Wan) 대한건축학회 2008 大韓建築學會論文集 : 構造系 Vol.24 No.7
The behavior of concrete structures subject to fire is dependent on many factors. The factors include fire duration time in relation to the level of temperature penetration in concrete and reinforcing bars, the mechanical properties of the steel and concrete, amount of reinforcement, and member geometry among others. Although there are a few sophisticated numerical models which can trace the effects of these important parameters on the residual capacity of fire-damaged reinforced concrete walls, practical predictive formulas are in need for rapid and yet reasonable assessment in practice. The practical formulas are developed in this study for fire-damaged normal strength reinforced concrete shear walls which can approximate the predictions of those sophisticated numerical models. The formulas take into account the effects of exposure time to fire, wall thickness, wall length, reinforcement ratio, and concrete compressive strength. The developed formulas are shown to correlate with the predictions of numerical model in a reasonable agreement.
이차돈,김현,Lee, Cha-Don,Kim, Hyun 대한건축학회 2011 대한건축학회논문집 Vol.27 No.11
The model incorporating different strain components of concrete and steel in high temperature has been developed to simulate the axial deformation of the wall in fire. Comparisons between the test results and the model predictions showed that the developed model was able to predict the general tendency of the axial deformation of the wall in fire. From the parametric studies with the developed model, it was found that except concrete compressive strength, both wall thickness and the ratio of the externally applied axial load to nominal strength of the wall could affect the fire resistance. Based on the results from the developed model, it was suggested that further refinement on the code provisions be made for the fire resistance to include the effect of relative magnitude of the axial load to the wall strength.