Prestressed Concrete Assignment (2024-25) - PDF

SREE VIDYANIKETHAN ENGINEERING COLLEGE (AUTONOMOUS) Sree Sainath Nagar, Tirupati- 517 102 Assignment Problems/Questions Course Code : 20BT70113 Course Name : Prestressed Co...

SREE VIDYANIKETHAN ENGINEERING COLLEGE (AUTONOMOUS) Sree Sainath Nagar, Tirupati- 517 102 Assignment Problems/Questions Course Code : 20BT70113 Course Name : Prestressed Concrete Year & Semester : IV B.Tech I Semester Branch & Section : CE A & B Regulations : SVEC-20 Academic Year : 2024-25 Faculty member(s) : Mr. D.V. Purushotham Max. Marks/Assignment: 10 Q. Blooms Group Problem/Question Description Marks POs No. Level 1. As a design engineer, study and prepare a report 5 M 4 PO1 of the design aspects and things to consider while PO2 complex designing of any prestressed concrete PO7 structures. PO8 PO9 PO10 PO11 I PO12 2. Design a Type I post-tensioned beam of 5 M 6 PO1 rectangular section to carry a live load of 15 kN/m PO2 over a simply supported span of 12 m. Strength of PO3 concrete at transfer is 42 N/mm2 and at 28 days is PO4 60 N/mm2. Loss of prestress = 15%. Use 5 mm PO6 diameter wires with fp = 1500 N/mm2. PO8 1. As a design engineer, study and prepare a report 5 M 4 PO1 of the design aspects and things to consider while PO2 complex designing of any prestressed concrete PO7 structures. PO8 PO9 PO10 PO11 II PO12 2. Design a post-tensioned slab of size 5m X 6m with 5 M 6 PO1 discontinuous edges to carry a live load of 5 PO2 kN/m2. Use cables with 4 No.s 5 mm diameter PO3 wires initially stressed to 1000 N/mm2 and M60 PO4 concrete. PO6 PO8 1. As a design engineer, study and prepare a report 5 M 4 PO1 of the design aspects and things to consider while PO2 complex designing of any prestressed concrete PO7 structures. PO8 III PO9 PO10 PO11 PO12 2. A cylindrical PSC water tank of internal diameter 5 M 6 PO1 30m is required to store water over a depth of PO2 7.5m. The permissible compressive stress in PO3 concrete at transfer is 13 N/mm2 and the minimum PO4 compressive stress under working pressure is 1 PO6 N/mm2. The loss ratio is 0.75. Wires of 5mm PO8 diameter with an initial stress of 1000 N/mm 2 are available for circumferential winding and Freyssinet cables made up of 12 wires of 8mm diameter stressed to 1200 N/mm2 are to be used for vertical prestressing. Design the tank walls assuming the base as fixed. The cube strength of concrete is 40 N/mm2 **** BATCH LIST S.NO. Roll No. No. of Students A-Section 1 21121A0101-123 20 2 21121A0124-143 20 3 21121A0144-165 20 Total 60 B-Section 1 20121A0118,158,161,196&198 20 21121A0166-181 2 21121A0182-192 20 22125A0101-110 3 22125A0111-130 19 Total 59