Paper Information

Journal:   ASIAN JOURNAL OF CIVIL ENGINEERING (BUILDING AND HOUSING)   2017 , Volume 18 , Number 2; Page(s) 173 To 190.
 
Paper:  PREDICTION OF TWIST AT CRACKING TORQUE OF FERROCEMENT “U” WRAPPED RCC BEAMS
 
Author(s):  BEHERA G.C.*
 
* DEPARTMENT OF CIVIL ENGINEERING, GANDHI ENGINEERING COLLEGE, BHUBANESWAR, ODISHA, INDIA-752054
 
Abstract: 

Wrapping technology is one of the effective ways of strengthening concrete elements. Several researchers reported the effectiveness of Glass fiber reinforced polymers and carbon fiber reinforced polymers for improving the strength of the concrete elements. Wrapping on three sides is one of the effective methods for strengthening the beams supporting slabs. Very less literature is available on the strength enhancement of "U" wrapped concrete elements subjected to torsional loads. In this investigation an attempt is made to quantify the improvement in twist of "U" wrapped rectangular concrete members subjected to torsional loads "U" wraps. Carbon fiber has taken the drivers seat as a wrapping material in developed countries. From cost effective point of view ferrocement can be used as a wrapping material in place of FRP. Beams were cast with different number of mesh layers, different torsional reinforcement, different grades of concrete and mortar. The beams were analyzed with MARS. Analytical model was developed to predict secant stiffness at cracking torque. The predictions for twist at cracking torque are in good agreement with experimental test results.

 
Keyword(s): FERROCEMENT, U WRAP, TWIST AT CRACKING TORQUE, MARS, ANALYTICAL MODEL