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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.
Measurement of cement and aggregates - by weight vs. by volume Measurement of constituents for concrete is usually carried out by weight since of the following reasons: (i)
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Analyse the continuous beam using moment distribution. A continuous beam ABCDE fixed at A carry a load of 2KN one metre from A at AB 3m. BC 3m, carry a UDL of 3KN/m and hinge at
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The footprint of a proposed office building is overlaid on the existing contours topographic map of a sloping site as shown in the figure. The structural bays which are 65-ft by 65
principle of direct levelling
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