http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Sani Mohammed Bida (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
-
Thermal Resistance of Insulated Precast Concrete Sandwich Panels
Sani Mohammed Bida,Farah Nora Aznieta Abdul Aziz,Mohd Saleh Jaafar,Farzad Hejazi,Nabilah Abu Bakar 한국콘크리트학회 2021 International Journal of Concrete Structures and M Vol.15 No.6
Many nations are already working toward full implementation of energy efficiency in buildings known as Green Building. In line with this perspective, this paper aims to develop a thermally efficient precast concrete sandwich panels (PCSP) for structural applications. Therefore, an experimental investigation was carried out to determine the thermal resistance of the proposed PCSP using Hotbox method and the results were validated using finite element method (FEM) in COMSOL Multiphysics Software. The PCSP were designed with staggered shear connectors to avoid thermal bridges between the successive layers. The staggered connectors are spaced at 200 mm, 300 mm and 400 mm on each concrete layer, while the control panel is designed with 200 mm direct shear connection. In the experimental test, four (4) panels of 500 mm × 500 mm and 150 mm thick were subjected to Hotbox Test to determine the thermal resistance. The result shows that thermal resistance of the PCSP with staggered shear connection increases with increase in spacing. The PCSP with 400 mm staggered shear connectors indicates the best thermal efficiency with a thermal resistance (R value) of 2.48 m²K/W. The thermal performance was verified by FEA which shows less than 5% error coupled with a precise prediction of surface temperature gradient. This indicates that, with conventional materials, thermal path approach can be used to develop a precast concrete building with better thermal resistant properties. Hopefully, stakeholders in the green building industry would find this proposed PCSP as an alternative energy efficient load bearing panel towards sustainable and greener buildings.
-
Structural performance of precast foamed concrete sandwich panel subjected to axial load
Y. H. Mugahed Amran,Raizal S. M. Rashid,Farzad Hejazi,A. A. Abang Ali,Nor Azizi Safiee,Sani Mohammed Bida 대한토목학회 2018 KSCE JOURNAL OF CIVIL ENGINEERING Vol.22 No.4
In this paper, experimental and simple analytical studies on the structural behavior of Precast Foamed Concrete Sandwich Panel(PFCSP) were reported. Full-scale tests on six PFCSP panels varying in thickness were performed under axial load applications. Axial load-bearing capacity, load-deflection profiles, load-strain relationships, slenderness ratio, load-displacement, load-deformation,typical modes of failure and cracking patterns under constantly increasing axial loads were discussed. Nonlinear Finite ElementAnalysis (FEA) using LUSAS software to investigate the structural behavior of PFCSP was contacted. The computed ultimatestrength values using American Concrete Institute equation (ACI318) and other empirical formulas developed by perviousresearchers which applicable to predict the ultimate strength capacity of sandwich panels were compared with the experimental testresults and FEA data obtained; therefore, very conservative values resulted, a significant agreement with the FEA data that presenteda high degree of accuracy with experiments and an increase in slenderness function.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
