Nonlinear finite element analysis of reinforced concrete deep beams | |
| Author | Khasraghy, Sara Ghadimi |
| Call Number | AIT Thesis no.ST-05-13 |
| Subject(s) | Concrete beams Reinforced concrete Finite element method |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. ST-05-13 |
| Abstract | This study has been undertaken for nonlinear finite element analysis of reinforced concrete deep beams. The primary purpose of this research was to study the effectiveness of bond in deep beams. The finite element computer program XFINAS has been used to analyze the models including both material and geometric nonlinearities. A three dimensional Bond-Linkage element has been developed to connect the concrete to the reinforcing steel bars at the nodal points and to allow the steel reinforcements to slip relative to the surrounding concrete. A nonlinear bond stress-slip relationship has been adopted for the development of the bond-link element. Von Mises yield criteria has been used to model three dimensional concrete solid elements and an elasto-plastic behavior of reinforcing bars with linear strain hardening has been assumed. The reinforcements were modeled using 3-D truss elements. Finally, the models of reinforced concrete deep beam and reinforced concrete long beam were developed and analyzed by the computer program. The beams were modeled for bonded and unbonded cases to study the effect of bond on the capacity of the beam. The output has been displayed using GID software as post processor. The results have been compared with the experimental data. The numerical results showed that the deep beam without bond had a higher shear capacity and a ductile behavior compared to the beam with good bond. A reasonable agreement between the numerical results and experimental results has been observed. |
| Year | 2005 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. ST-05-13 |
| Type | Thesis |
| School | School of Engineering and Technology |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Structural Engineering (STE) /Former Name = Structural Engineering and Construction (ST) |
| Chairperson(s) | Barry, William Joseph; |
| Examination Committee(s) | Pennung Warnitchai;Kim, Kidu; |
| Scholarship Donor(s) | Government of Japan; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2005 |