+44 7400010488 help@instantassignmenthelp.com
Save 51% on Expert-Crafted Assignment Solutions!

Prestress Design

Table of Content

  1. Introduction
Question :
  • What is the primary purpose of inducing internal stresses in prestressed concrete structures?
  • What role does the anchorage block play in the stability of prestressed concrete structures?
  • Why is it necessary to carefully select the cable profile in prestressed concrete construction?
Answer :

Introduction

Prestressed concrete is a procedure wherein the internal tensions or stresses intensionally induced in order to improve its performance without imposing external loads upon it. The agenda of inducing these internal tensions in the structure acts as a counter force against the external loads induced on the structure of concrete (Fabbrocinon and et. al., 2017). There are different terms defined with respect to prestressed concrete. These are elaborated effectively in the assignment below:

Differential Shrinkage

This is the term applied for determining the difference between precast concrete's overall tension characteristics and on-site concrete's shrinkage characteristics. If applied effectively, differential shrinkage could affect strength of the prestressed concrete in terms of cracking and warping. In prestressed concrete beams, presence of this factor has a serious impact on its time dependent behavior. In addition to this, it also affects steel relaxation, compression steel, untensioned steel presence, etc.

Anchorage Block

The anchorage in the prestressed concrete consists the length of tendons, and is directly contacted with the concrete. In the post-stressed concrete, an anchorage plate is applied. There are various methods used to connect the tendons with the plates like button-heads, wedges and so forth. Plates smaller in size than the concrete required to be compressed are used for the purpose. However, this aspect in prestressed concrete is very crucial and stress is extremely complex. It has various components like curved trajectories and it is essential that it does not crack in order to ensure sustainability of the structure.

Bursting Pressure

Burst pressure is the type of pressure that could be handled by a tube or a pipe before bursting. There is a significant role of environment in determining this pressure. Inside prestressed concrete beams, there are pre-tensed cables that are pulled by each ends surrounding the anchorage. These are pulled till the necessary tensile force (Hurst, 2014). Due to its elastic contraction, this prestressed pressure is them transferred as compression over the beam. As a result, there is a pressure on the beam ends near anchors. After that the pressure is transferred effectively to the overall cross section. It is imperative that the end blocks sustain such high compression. This pressure induced by end block forces is called bursting pressure,

We tend to help you at every step regarding Academic Assistance

Get your Assignments Now!

Concordant Cable Profile

Concordant cable profile refers to a profile which produces a force coincident with the profile. While prestressed, it does not produce any deflection of the beam over the support. Thus, no reaction is induced. It is very essential that the most suitable type of cable profile is used for the prestressed concrete structure. The most appropriate design for the cable profile must be chosen in order to ensure the stability and strength in the structure.

Conclusion

Thus, it is important that to effectively establish a prestressed design, the engineer must be well affiliated with these aspects of the prestressed concrete. It is necessary to determine the design as well as their working to effectively support the structure made by the prestressed concrete.

Read More - PHD Dissertation Help

                   How to Write an Analytical Essay? (with example and tips)

References

  • Fabbrocino, F., and et. al., 2017. Optimal prestress design of composite cable-stayed bridges. Composite Structures. 169. pp.167-172.
  • Hurst, M.K., 2014. Prestressed concrete design. CRC Press.
Download Full Sample
Students have a lot of academic burdens these days that make them seek online assignment help from experts. Therefore, we have created an exclusive list of sample for almost every subject. Our highly qualified experts curated it for your assignment, essay, and dissertation help. So what are you waiting for? Explore the content written by our professionals and go ahead and seek essay writing services UK from our experts. The best part is they are available 24*7 to provide excellent assistance. So, what are you waiting for? Ask our experts, "Can you do my assignment for me, please?" You will see the magic happening in an instant.
Boost Grades & Leave Stress

Share Your Requirements Now for Customized Solutions.

Lowest Price

SHP4.78

    FOR FIRST ORDER GET EXTRA 25% OFF

    Use Our Seasonal Offers!

    Get Up to 51% OFF

    Coupon Code

    INSTANT25
    Claim Now

    Our unique Features

    24/7 Customer Support

    100% Customer Satisfaction

    No Privacy Infringement

    Quick Services

    Subject Experts

    Innovative Documents

    100+ Qualified Writers

    For Best (Accounting) Assignment Help

    Emily Jones
    100 - Completed Orders
    Emily JonesView Profile Hire Me
    Gillian Walker
    676 - Completed Orders
    Gillian WalkerView Profile Hire Me
    Demi Flyinn
    450 - Completed Orders
    Demi FlyinnView Profile Hire Me
    Scarlet James
    2423 - Completed Orders
    Scarlet JamesView Profile Hire Me
    View All Writers
     
    IAH whatsapp

    Limited Time Offer

    Exclusive Library Membership + FREE Wallet Balance