Torsion of reinforced concrete members | |
| Author | Prasert Samalabha |
| Call Number | AIT Thesis no. 101 |
| Subject(s) | Torsion Reinforced concrete |
| Note | A thesis submitted in partial fulfillment if the requirements for the degree of Master of Engineering in the SEATO Graduate School of Engineering, Bangkok, Thailand. |
| Publisher | Asian Institute of Technology |
| Abstract | Fifteen 6 x 6 x 36 in. concrete specimens, three plain concrete and twelve reinforced, were tested in pure torsion to failure. The steel reinforcement consisted of the combination of transverse hoops having a reinforcement ratio varying from 0.462 to 3.06 percent, and 4 longitudinal corner bars with the reinforcement ratio varying from 0.555 to 1.22 percent. All reinforcement was mild steel of 1/4 and 3/8 in. diameter (no. 4 o 2 and No. 3) with a yield stress of 35.8 and 45.8 ksi, respectively. The concrete cylinder strength varied from 4300 to 5450 psi. The angles of twist of the test beams were recorded by four dial gages. Readings were taken at each increment of the applied torsional load until failure occurred. It was observed that plain concrete beams failed abruptly under torsion. The addition of the reinforcement ensured a gradual failure which was preceded by large deformations. Based on the test results of observed torsional moment at the elastic limit and at ultimate, a design formula for ultimate torsional strength of reinforced concrete rectangular section was developed. Comparisons were made with various code requirements. |
| Year | 1965 |
| Type | Thesis |
| School | Student Research Before 1979 |
| Department | Department of Water Resources and Environmental Engineering (DWREE) |
| Academic Program/FoS | Thesis (Year <=1979) |
| Chairperson(s) | Dr. W.J. Venuti; |
| Examination Committee(s) | Dr. A. R. Cusens;Dr. L.B. Kriz;Dean Milton E. Bender, Jr.; |
| Degree | Thesis (M.Eng.) - SEATO Graduate School of Engineering, 1965 |