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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)
explain it
mechanism of different types of concrete mixers
The process of installation of elastomeric bearing differs in case of precast vis-a-vis cast-in-situ girders. For precast girders, the bearing may be fixed to the underside of the
what is the difference between bitumin and asphalt
Q. Disadvantages of excessive concrete covers? In reinforced concrete structures cover is generally provided to protect steel reinforcement from corrosion and to provide fire r
When a dam is to be built, a diversion tunnel is usually bored by solid rock next to the dam site to bypass the dam construction site. The dam is built while the river flows by the
The continuous one-way slab shown below is loaded with a uniform service live load of 80 psf, and a superimposed dead load of 40 psf. Assume the beam width is 16" and use f'c = 5 k
Two crops are grown on land of 20ha.The cost of raising crop 1 is 3unit/ha, while for crop 2 it is 1 unit/ha.The benefit from crop 1 is 5unit/ha and from crop 2, it is 2 unit/ha. A
Question In a concrete compression test , usually 150mmx150mmx150mm concrete cube examples are used for testing. Why isn't 100mmx100mmx100mm concrete cube samples used in test in
Determine the term - Degree of Prestressing Degree of Prestressing It is a measure of the magnitude of the prestressing force related to the resultant stress occurring in
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