18 Questions
What is the reinforcement used to resist shearing stresses known as?
Ties
In reinforced concrete construction, what is a tie made of?
#3 bars
When is it occasionally necessary to put in two or more layers of steel in reinforced concrete construction?
Large girders carrying heavy loads
In reinforced concrete construction, what is the minimum clear distance between bars determined by?
Nominal diameters of the bars
In reinforced concrete construction, if more than one layer of steel is used, what should be the minimum clear vertical distance between layers?
1” (25 mm)
What type of reinforcement should lie in the same plane in a reinforced concrete beam to enhance economy?
Tensile reinforcement
What type of stress in a concrete beam leads to vertical cracks at the center of the span and inclined cracks towards the support?
Diagonal tension
In reinforced concrete beams subjected to diagonal tension, what is the purpose of adding stirrups?
To resist diagonal tension and prevent failure
What method is commonly used to reinforce concrete beams for diagonal tension?
Adding U-shaped bars vertically at critical locations
Which type of reinforcing bars are typically used in concrete beams when diagonal tension stresses are large?
#3 or #4 bars bent in U-shape
What term is used to describe the inclined tensile stresses in addition to tensile and compressive stresses in a beam subjected to bending?
Diagonal tension
Why do stirrups used for reinforcing concrete beams have hooks at their ends?
To provide anchorage and resist tensile stresses
What type of beams have a single span with a support at each end, without any restraint at the supports?
Simple beams
Which type of beams are supported at one end only or may be the portion of beams projecting beyond one support?
Cantilever beams
What characterizes continuous beams in terms of supports?
Multiple supports
Which type of construction system involves Heavy Reinforced Concrete, PreStressed Concrete, and Steel foundations?
Steel Construction
In foundation systems, what does PreStressed Concrete provide compared to traditional concrete?
Improved Strength
What is a common feature of Reinforced Concrete Columns and Floor Systems?
High Tensile Strength
Test your knowledge on heavy reinforced concrete, prestressed concrete, and steel construction. Explore topics like foundation systems, basement construction, cisterns, columns, and floor systems.
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