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How to calculate the total loss of prestress
As a general guide, it may be taken that total loss of prestress may be in the range of 20 to 25 percent of the initial prestress, the lower and higher values of this range generally applying to post-tensioned and pre-tensioned concrete members respectively. It may seem natural as prestresses in post-tensioned members are generally applied at a later stage by which time concrete is able to have gained most of its strength.
Design for the limit state of collapse in bending Following assumptions are taken in the design for the limit state of collapse in bending or flexure. Plane sections norm
Interface between base plates and footings Surface of footings is generally quite rough so that some levelling has to be carried out for base plates. Interface between base pl
An undisturbed sample of sand has a dry weight of 18.9 N and a volume of 1143 cm 3 . The solids have a specific gravity of 2.72. Laboratory tests indicate void ratios of 0.40 and 0
Crushing Strength Test: For conducting this test, specimen of size 40 × 40 × 40 mm is build from parent stone. Then finely the sides are dressed and placed in water for thr
I am currently enrolled in a graduate Civil Engineering course in Finite Element Analysis. The final assignment and project both deal with coding in MATLAB and I am having great di
describe abot the michelson interfrance
manufacture of cement by dry process
Heliports and Stol Ports: Heliports Heliports are facilities for landing and take-off of helicopters. They consist of : (a) Landing and take-off area, which contai
Most of the existing rubber dams are of air-filled types. Water-filled rubber dams aren't preferred for the below reasons: (i) By giving same sheet length and dam height, tensi
Q. What is Admixtures? These are the substance which are added to the concrete to improve its qualities either its placing or in its subsequent performance. An admixture may be
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