Comparative analysis of collapse loads of slabs supported on orthogonal Sided frames with beam/column joint fixed
Journal Title: Journal of Civil Engineering and Environmental Sciences - Year 2018, Vol 4, Issue 1
Abstract
This research evaluates the collapse loads of slab supported on orthogonal sided frames with beam/column joint fixed. Two frame models were investigated (one with moment of resistance of slab (MRS) > moment of resistance of beam (MRB) and the other with moment of resistance of slab (MRS) < moment of resistance of beam (MRB). A reinforced concrete prototype of 3m×3m× 3m frame with a reduction factor of 3 was designed and constructed. A model of it constructed and cast with a micro concrete of 1:6 mix ratio. The models were allowed to cure for 28days before being loaded directly until collapse. Loading of the RC frame model was done by a fabricated loading box of 1.0 ×1.0×3.0m size place on top of its slab. Sands were poured into the panel using head pans. The weight of sand on each head pans (1.84KN). Two dial gauges were used; one was set at the center of the bottom of the slab while the other was set below the center of the bottom of the beam to monitor and measure the deflection at ten head pans of sand. The estimated collapse load for slab and beam were 20.36kn/m and 52.27kn/m respectively. The actual collapse loads for MRS > MRB and MRS < MRB frame models were 69.04kn/m and 49.68kn/m respectively. The frame model failed by flexural failure at the beams/column joints. The actual collapse load of 69.92kn and 49.68kn respectively were greater than that of the estimated collapse loads of beam and slab comparably. Also the MRS > MRB frame model is stronger than that of the MRS < MRB frame model.
Authors and Affiliations
Osuji SO, Adhekoyibo LO
Keywords
Related Articles
- EP ID EP324969
- DOI 10.17352/2455-488X.000021
- Views 59
- Downloads 0
Experimental study on flocculation performance of Chitosan-Based Flocculant using a Novel Jar Tester
The effectiveness of chitosan as a flocculant was tested with a novel experimental apparatus. Using a newly developed flocculation tester, a large number of flocculation rate processes were measured. The novel jar tester...
Chemistry in Civil Engineering-New Products and Applications
The field of civil engineering is ever expanding where technology grows and advances at a very fast pace. Newer constructional materials are introduced every year to cater to these needs. There are certain naturally occu...
Evaluation the Compressive Strength in Concrete Structures Using the In-situ Test Methods
The new concrete Standards give rules for in situ checking if the hardened concrete in structure achieved the designed compressive strength according the request the class of concrete. Different concrete elements in stru...
Should National Environmental Policy focus on developing more oil resources or developing renewable energy sources?
United Arab Emirates (UAE) is a nation which is gifted with abundant reserves of oil and natural gas, thus occupying seventh position in the world. Because of its vast reserves, the oil sector plays a pivotal role in run...
User Response – Based Sustainable Solutions to Traffic Congestion Problem using Public Transport: The Case of Uttara, Dhaka
For a country of millions, traffic congestion significantly reduces the economic productivity. This statement holds true for most urban areas of the world, especially Dhaka, the mega-city of Bangladesh. An area of Dhaka...