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What is Thermo-electric prestressing
We know that, stretched tendons are used in prestressed concrete. Stretching of tendons may be accomplished by using jacks or by other means. Thermo-electric prestressing is just another method of stretching the tendon wiers. We know that if we increase the temperature of a metal, it expands. As the name suggests, in Thermo-electric prestressing, temperature of tendon wires is increased by passing electric current for a short duration. This temperature increase, taking place within 3-5 minutes, may be of an order of 300-400°C. The bars, which may undergo an expansion of about 0.4-0.5% in length, try to shorten at cooling butare checked by fixed anchors at the two ends.
Consider a diver weighing 200 Ib at the end of a diving board that cantilevers out 3 ft. The diver oscillates at a frequency of 2 Hz. What is the flexural rigidity E I of the divin
subdivisions of ecology
Q. Use of primers in joint sealant? Most of the joint sealants applied in concrete joints are adhesive and recommended joint width/depth of joint sealant is from 2:1 to 1:1 as
Types of Pavements: On the basis of structural performance of pavements, there are basically two types of pavements: (a) Flexible, and (b) Rigid. A flexible pavement
A vehicle for landing on the moon has a mass of 4500kg. The damped spring undercarriage system of the vehicle has a stiffness of 450kn/m and a damping ratio of 0.2. The rocket lift
I want to get answer of each questions that I Have in a separate paragraphs, and the information should be from sources so please fro each question that you answer write after it t
Snow weight In spatial trusses, Snow load is much more important than building. As in buildings snow load is only a small proportion of the overall weight of the building, it w
Seismic loading principles Ground motion Effects of ground motion are specified as one of the acceleration delineation spectrum or time history of acceleration variation m
describe how quality control is maintained in a rolled fill dam
what is the function of longitudinal joints in concrete road pavements?
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