STUDY OF COLUMN STRUCTURE BEHAVIOUR WITH FIBER AND FERRO CEMENT CONFINEMENT UNDER COMPRESSION
Author(s):
SYED JAWID HUSSAIN, Dr. SIVA KUMAR RAMAMOORTHY
Keywords:
Ferrocement, Slenderness ratio, GI wire mesh, Compressive strength, Split tensile strength, Flexural Strength.
Abstract
Retrofitting older buildings has grown to represent a significant component of construction activity. Any construction that relies only on columns to convey the weight to the base has a strong sense of authority. The columns' load bearing capability is heavily influenced by the slenderness ratio. In general, the load-bearing capability of concrete columns diminishes as the slenderness ratio increases. It is thus required to reinforce defective columns to enhance the load bearing capacity, flexibility and energy absorbing capabilities which may be accomplished through exterior confinement of column. Materials like ferrocement, fibre-reinforced polymers (FRP), and steel jacketing may all be used for external confinement. Reinforcing degraded and weak columns using ferrocement confinement is a time-tested, practical, and inexpensive method. Wire mesh with higher strength mortar are used to create ferrocement, a kind of reinforced concrete used for thin walls. The larger specific surface of small-diameter reinforcing wires results in a more homogeneous ferrocement. Greater ductile response as well as energy absorbing capacity may be achieved by using wires that are more closely spaced. Ferrocement-bound structures deform above the elastic point, unlike typical concrete structures, which deform brittle when they reach their limit of deformation. Taking all of this into account, the current research concentrated upon behavior of R.C.C columns having varying slenderness proportions upon ferrocement confined columns and unconfined columns. An count of 27 column specimen having 3 distinct slenderness ratios were cast in the experimental section of this thesis. 3 slenderness ratio had been deliberated (i) λ=3; (ii) λ =7; & (iii) λ =15. Those samples had then subdivided into three distinct groups. There were three groups: one with 3 unconfined control columns from every group size, second with 3 curbed by ferrocement and utilising a single wiremesh layer, as well as a 3rd group with 3 confined by ferrocement and utilizing 2 layer of wiremesh. Every column was subjected to monotonic uniaxial compression stress. Ferrocement confinement improved the column's load-carrying stability and capacity by reducing column's later
Article Details
Unique Paper ID: 155426

Publication Volume & Issue: Volume 9, Issue 1

Page(s): 943 - 962
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