In a doubly reinforced beam, reinforcement is provided in the tension zone and compression zone. (as shown in the above figure). The moment of resistance can not be increased by increasing the amount of steel in the tension zone. It can be increased by making the beam over-reinforced but not more than 25 percent on … Read more
In this article, we have covered the difference between Singly Reinforced Beam and Doubly Reinforced Beam based on reinforcement in tension and compression zones of the RCC beam. Singly reinforced beam and double reinforced beam are two common types of reinforced concrete beams widely used in construction. These beams resist bending and shear forces to … Read more
If the depth of the beam in the slab is equal to the depth of the slab, it is known as a hidden beam or concealed beam. You can not see concealed beam after slab casting. The normal beam has a larger depth than the slab but the concealed beam has the same depth as of slab. … Read more
This article explains various types of failures in beams. Failure of a single structural member can lead to complete structural collapse. That is why we need to identify all types of failures in the beam. There are two types of failures in beams. Flexural failure occurs due to imposed load exceeding the flexural capacity of the … Read more
Waffle Slab A waffle slab is made of reinforced concrete with holes underneath, giving the appearance of waffles. Waffle slabs are preferred for large spans greater than 12 meters. Waffle slabs are stronger than flat slabs, flat slabs with drop panels, two-way slabs, one-way slabs, and one-way joist slabs. It is used to avoid many columns interfering with … Read more
The shear key is a structural element designed and provided in different structures to provide resistance against lateral forces like earthquake forces and sliding forces in the different structures such as bridges, retaining walls, the basement of residential buildings, precast buildings and culverts, masonry walls in seismic regions, and steel columns. A shear key can … Read more
Different types of Stirrups are used in the construction industry such as Single Legged Stirrup, Two-Legged Stirrup, Three-legged Stirrup, etc. Stirrups are rectangular steel pieces used to resist lateral shear stress and diagonal tension stress in RCC structures. Stirrups help to hold in place the primary reinforcement bars and prevent buckling failure in columns. Depending upon … Read more
Sunken Slab The sunken slab is provided in the washroom or laundry areas where water pipes are installed below the floor level. The depth of the sunken slab is normally 20 cm to 30 cm below the floor level. Depth depends upon the size of the duct or any other pipes installed below the floor … Read more
In this article you will learn about crank bar in beam, slab and column. Crank bar also called as bent Up Bar. I will also describe why crank is provided. Definition Crank Bar is also known as the Bent Up bar. It is provided on top of the reinforcement to resist negative bending moment/Hogging at the supports … Read more
What is Retaining Wall? A retaining wall is a structural wall that is designed and constructed to resist the lateral pressure of soil. Lateral pressure can occur due to earth filling, liquid pressure, sand, and other granular materials behind the retaining wall. In other words, A retaining wall is a structure that retains material behind … Read more