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Given:
beam deminsions: flange width=22" FLANGE THICKNESS=7" WEB WIDTH=7" SECTION HEIGHT=40"
f'c=5000psi f'ci=3500psi fpu=270ksi Ap=eighteen 1/2" diam strands superimposed load=.85k/ft: 40' simple span Type I cement; moist cured Pretensioned beam Required:
1. Estimate prestress losses at midspan 90 days after release. (elastic shortening,creep,shrinkage,steel relaxation)
Method of Greasing : Greasing of fixed end requires 20 to 25 minutes. The lifting is hardly 10 mm, ensuring that the gap is created between saddle block and knuckle pin. Saddle is
Determine the uses of Prestressed concrete poles Prestressed concrete poles are commonly mass produced and are used in most countries for power transmission, antenna masts etc
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State the importance of structural element If this structural element is used as a beam element, subjected to self load and other imposed transverse loads, then the bottom fibr
property of aggregate in high strength concrete
triangle of force
Why I is the missing after h and J is written in the classification of building
Q If the degree of curve is defined by the angle at the center subtended by an arc (or chord) 20 meters, find the length of the chord in meters so that the versine measured in cm
Q. Air chamber vs. surge tank in pressurized pipelines? Air chambers and surge tanks are generally installed in water main to ease the stress on the system when valves or pumps
Explain the Scaling - underwater inspection of bridges? Scaling is the gradual and continuing loss of the surface mortar and aggregate over an area. This condition is commonly
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