Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. One-way pre stressing vs two-way pre stressing?
At the time of pre-stressing operation at one end, frictional losses will take place and the prestressing force decreases along the length of tendon till reaching the other end. These frictional losses involve the friction induced because of a change of curvature of tendon duct and also the wobble effect because of deviation of duct alignment from the centreline. Thus the prestress force in the mid-span or at the other end would be greatly decreased in case the frictional loss is high. Thus prestressing, from both ends for a single span which implies prestressing one-half of total tendons at one end and remaining half at the other end is carried out to enable an even distribution and to provide symmetry of prestress force along the structure.
As a matter of fact stressing at one end only has the potential advantage of lower cost when compared with stressing from both ends. For multiple spans (for example two spans) with unequal span length, jacking is generally carried out at the end of the longer span so as to provide a higher prestress force at the location of maximum positive moment. On contrary jacking from the end of shorter span will be conducted if negative moment at the intermediate support controls the prestress force. Though if the total span length is sufficiently long, jackingfrom both ends must be considered.
A contractor will place 90-cubic yards of concrete for a housekeeping pad on the rooftop of a 36-ft tall building. Site conditions dictate that the safest and best method of placem
Explain the Dynamic or Vibration Tests Tests of this type, also known as sonic integrity test, involve sub- jecting the element to a single impulsive blow or cyclic load, and
Types of Cement In addition to ordinary Portland cement there are various varieties of cement. Significant varieties are briefly explained below: (i) White Cement: The ce
Relation of the angle of contact between pipe invert and bedding material to the load resisting capacity of pipe Minimum crushing strength is a generally adopted parameter for
how to calculate when moment is present in the structure by influence line diagram
Particle Size Distribution (Gradation): The particle size distribution is determined by passing the aggregates through a set of standard IS sieves (Figure) and determining th
Thermal Coefficient Inside of the building's temperature can increase or reduce the snow weight. As these types of structures normally cover a wide area and heating or even tur
which truss is suitable for 19*22m span on which mangalore tiles can be placed or shud steel truss be preferred for such span and which 1 is more profitable in rural desiggn...
Q.What do you mean by Slip Siding? If the Station yard is in a gradient steeper than 1 in 260 or there is a continuous falling gradient away from the station there is a possibi
1. The topography of a local valley is shown. The horizontal distance between point P and Q is 11,456-ft. The percent grade (%) of line P-Q . 2. Based on the info
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd