M.Ing. (Civil Engineering) / The shear strength of a concrete structure is usually determined in practice in accordance with the applicable national concrete design code. Calculation methods prescribed in national design codes differ from code to code and yield widely divergent results. The methods given for different cases in specific codes are often based on different approaches. Further, some of the methods do not agree with the observed behaviour during failure. This shows that there is a need for more accurate methods of determining shear strength, as well as approaches leading to universally applicable methods. A literature study was undertaken to establish whether such methods or approaches have already been developed. Special attention was given to the underlying mechanisms involved in shear resistance, to the shear resistance of concrete elements without shear reinforcement, of elements with varying depth, and of areas near points of contraflexure, and to punching resistance of flat slabs. A review of the latest research on the subject is given, and areas where further research is required, are identified.
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:uj/uj:3898 |
| Date | 11 February 2014 |
| Creators | Krijnauw, Pieter |
| Source Sets | South African National ETD Portal |
| Detected Language | English |
| Type | Thesis |
| Rights | University of Johannesburg |
Page generated in 0.0019 seconds