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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.
A concrete wall form tie with an ultimate strength capacity of 2,400-lbs is designed for use in a concrete wall form with an 18-in center to center spacing. During formwork inspect
The thiclcness of the normally consolidated soft clay layer is 6 m. The natural water content is 31 percent. The specific gravity of the soil being 2.68 with a liquid limit of 4
A contractor established a policy to purchase equipment over leasing only if the return is a minimum of 15%. Given the following conditions, the contractor's decision based on the
Presence of bridge piers across a stream causes constricted flow in the openings due to the decrease of width of stream owing to presence of the piers. Furthermore it creates the f
Q. Mild steel and high yield steel in water-retaining structure? In designing water-retaining structures, movement joints may be installed in parallel with steel reinforcement
Define Advantages of Shock Transmission Unit? (a) STU is simple to install with minimal traffic disruption. (b) STU can be used for strengthening of existing bridges also. T
derive equation of radial pressure and loop stresses of thick cylinder
The maximum dry density and optimum moisture content of a soil from standard proctor's test are 18 kN/m 3 and 16% respectively. Compute the degree of saturation of the sample,
Q. What is Portal Cranes? The Portal crane is a hydraulically driven four wheeled machine and is meant for carrying sleepers or track panels. The power for running and working
what is brick masonry
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