Improvement of punching shear resistance in ferrocement slabs | |
| Author | Ahmed, Shaikh Faiz Uddin |
| Call Number | AIT Thesis no. ST-98-25 |
| Subject(s) | Concrete slabs Shear (Mechanics) |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering |
| Publisher | Asian Institute of Technology |
| Abstract | An experimental investigation was conducted to examine the behavior of ferrocement slabs simply supported on four edges and subjected to punching shear loading. Eighteen ferrocement square slabs of 1000 mm x 1000 mm x 30 mm were tested with the number of wire mesh layers, spacing of skeletal steel, use of perforated galvanized iron sheets and short randomly oriented sisal fibers as varying parameters while the span, thickness of slab, mortar strength and dimension of the loading plate were kept constant. Test results on the punching shear strength were also compared with empirical equations proposed by various researchers and codes of practices. The test results showed that an increase in number of wire mesh layers, decrease in spacing of skeletal steel and use of perforated galvanized iron sheet improved the punching shear capacity of ferrocement slabs. The use of randomly oriented short sisal fiber did not show any significant improvement on the punching shear strength of ferrocement slabs. Ferrocement slabs reinforced with skeletal steel having close spacing and higher number of wire mesh layers subjected to punching shear indicated both multiple cracking and quasi strain hardening behavior and can be regarded as a kind of high performance fiber reinforced cement composite. |
| Year | 1998 |
| Type | Thesis |
| School | School of Civil Engineering |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Structural Engineering (STE) /Former Name = Structural Engineering and Construction (ST) |
| Chairperson(s) | Pichai Nimityongskul; |
| Examination Committee(s) | Ogunlana, Stephen O.;Wijeyewickrema, Anil C.; |
| Scholarship Donor(s) | Government of Netherlands; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1998 |