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 : Jamaloddin Noorzaei (검색결과 3 건)
- 무료
- 기관 내 무료
- 유료
-
Khaled H. Bayagoob,Jamaloddin Noorzaei,A. Abdulrazeg,Awad A. Al-Karni,Mohd Saleh Jaafar 국제구조공학회 2010 Structural Engineering and Mechanics, An Int'l Jou Vol.36 No.4
This paper focuses on the development, verification and application of a three-dimensional nite element code for coupled thermal and structural analysis of roller compacted concrete arch dams. The Ostour Arch dam located on Ghezel-Ozan River, Iran, which was originally designed as conventional concrete arch dam, has been taken for the purpose of verication of the nite element code. In this project, RCC technology has been ascertained as an alternative method to reduce the cost of the project and make it competitive. The thermal analysis has been carried out taking into account the simulation of the sequence of construction, environmental temperature changes, and the wind speed. In addition, the variation of elastic modulus with time has been considered in this investigation using Concard’s model. An attempt was made to compare the stresses developed in the dam body five years after the completion of the dam with those of end of the construction. It was seen that there is an increase in the tensile stresses after five years over stresses obtained immediately at the end of construction by 61.3%.
-
Bayagoob, Khaled H.,Noorzaei, Jamaloddin,Abdulrazeg, Aeid A.,Al-Karni, Awad A.,Jaafar, Mohd Saleh Techno-Press 2010 Structural Engineering and Mechanics, An Int'l Jou Vol.36 No.4
This paper focuses on the development, verification and application of a three-dimensional nite element code for coupled thermal and structural analysis of roller compacted concrete arch dams. The Ostour Arch dam located on Ghezel-Ozan River, Iran, which was originally designed as conventional concrete arch dam, has been taken for the purpose of verication of the nite element code. In this project, RCC technology has been ascertained as an alternative method to reduce the cost of the project and make it competitive. The thermal analysis has been carried out taking into account the simulation of the sequence of construction, environmental temperature changes, and the wind speed. In addition, the variation of elastic modulus with time has been considered in this investigation using Concard's model. An attempt was made to compare the stresses developed in the dam body five years after the completion of the dam with those of end of the construction. It was seen that there is an increase in the tensile stresses after five years over stresses obtained immediately at the end of construction by 61.3%.
-
Omid Kohnehpooshi,Mohd Saleh Jaafar,Jamaloddin Noorzaei,Raizal Saifulnaz Muhammad Rashid 대한토목학회 2011 KSCE JOURNAL OF CIVIL ENGINEERING Vol.15 No.6
Reinforced concrete beams are generally designed to have enough shear strength to achieve flexural capacity; however, some structural component designed may not have sufficient shear capacity to resist big forces. Therefore, shear strengthening is required to strengthen these components. Aim of this work is to propose 3D finite element formulations of reinforced concrete beams in order to investigate the structural behavior of Reinforced Concrete (RC) beams post-tensioned in the shear region. Twenty seven node lagrangian elements have been used for modeling the concrete. Bar and bond-slip between bar and concrete were modeled together by three dimensional truss-linkage elements. The steel plates which was used for strengthening and to transfer the post-tensioning stresses in shear region to the RC beam, is modeled using 8 node isoparametric plate bending element with five Degrees of Freedom (DOF) in each node. These elements have been added to the existing three dimentional finite element program. Several reinforced concrete beams strengthened or unstrengthened, have been modeled and analyzed to determine the variation of deflection, stresses,and slip between concrete and tendons. The study leads to results that show the significant effectiveness of post-tensioning in the shear region on structural behavior of reinforced concrete beams.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
