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Q. What are the Parasitic forces for prestressing?
In statically determinate structures, prestressing forces will cause the concrete structures to end upwards. Therefore precambering is generally carried out to counteract such effect and make it more pleasant in appearance. Though for statically indeterminate structures the deformation of concrete members are restrained by the supports and consequently parasitic forces are developed by prestressing force in addition to bending moment produced by eccentricity of pre stressing tendons. The developed forces at support modify the reactions of concrete members subjected to external loads and generates secondary moments (or parasitic moments) in the structure.
A circular footing is resting on a stiff saturated clay with qu = 250 kN/m 2 . The depth of foundation is 2 m. Verify the diameter of the footing if the column load is 600 kN. S
Q. Write short note on SKV process of thermit welding? This term is used for welding by Alumino thermic process with short preheat time. The time required for preheat with pet
First Can I use this device to test concrete specimen? Second it is very important for me that wouldn’t have tensile strength when I want to fix specimens. Because the specimens su
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rame of unequal length
What is foundation?
Resultant Force on a Given Area of a Horizontal Plane By equation, the total vertical force applied to an area A on the plane is: Resultant Force R = ΡA = (lb/ft 2 )(ft 2 )
Define Pneumatic Tools for Underwater Inspection of Bridge? These are more efficient than hand tools and cause less diver fatigue. The disadvantages are that below about 20 m,
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