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Discuss about the post-tensioning systems
In most of post-tensioning systems, when the cable is tensioned and the jack is released to transfer prestress to concrete, the friction wedges, employed to grip the wires, slip a small distance before the wires can be firmly held between the wedges. The magnitude of slip depends upon the type of wedge and the stress in the wires. This loss of prestress occurs only in post-tensioned members as no anchorages are used in pre-tensioned members.
Calculate the concrete tensile strength A 6 in. by 12 in. concrete cylinder resisted a transverse force of 55,000-lbf, at 28 days, in a split tensile cylinder test. Calculate t
Influence line-moment 1. Replace the point of interest with an imaginary hinge. 2. Rotate the beam one unit rotation by apply equal but opposite moments to each of the two
What is Froude Number? Used to determine if the flow is rapid, critical or tranquil. Fr = 1 critical flow; Fr 1 supercritical flow In rectangular open channels: Fr =
Question What are designing considerations for dowel bars in joints of concrete carriageway? Answer Behaviour of dowel bars resembles that of piles in soils subject
TERMINOLOGY 1. Focus: The point on the fault where slip begins is the focus. It is also called as hypocentre 2. Epicentre: The point vertically above the focus on the su
Derived condition of economic span of bridge
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LA values of different sizes of materials can be proportionately determined?
A cylindrical specimen of a saturated soil fails under an axial stress 150 kN/m 2 in an unconfined compression test. The failure plane makes an angle of 52° with the horizontal.
write a short on vector representation of force(addition and substraction )
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