Design the vertical stem of a T-shaped retaining wall for a height of 3 m above ihe ground level. The top of the earth retained is surcharged at an angle of 10° with e horizontal as shown in Fig. 18.7. The angle of repose of earth is 29° and its density is 17. kN/m³. The safe bearing pressure is 100 kN/m². Use M25 concrete and Fe 415 grade steel 150 TI abivib bes in VERTICAL STEM 3000 san il hlet al9lo moitudi eahoquido oi ed 1000 400 TOE 200 Fig. 18.7 T-retaining wall

Design the vertical stem of a T-shaped retaining wall for a height of 3 m above ihe ground level. The top of the earth retained is surcharged at an angle of 10° with e horizontal as shown in Fig. 18.7. The angle of repose of earth is 29° and its density is 17. kN/m³. The safe bearing pressure is 100 kN/m². Use M25 concrete and Fe 415 grade steel 150 TI abivib bes in VERTICAL STEM 3000 san il hlet al9lo moitudi eahoquido oi ed 1000 400 TOE 200 Fig. 18.7 T-retaining wall

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Design the vertical stem of a T-shaped retaining wall for a height of 3 m above the ground level. The top of the earth retained is surcharged at an angle of 10° with the horizontal as shown in Fig. 18.7. The angle of repose of earth is 29° and its density is 17 kN/m. The safe bearing pressure is 100 kN/m2. Use M25 concrete and Fe 415 grade steel. 150 VERTICAL STEM 3000 1000 J400 TOE 200 Fig. 18.7 T-retaining wall
Reinforced And Prestressed Concrete PROBLEM: A reinforced rectangular beam with width b and effective depth d has 4.16 mm bars placed on 1 layer at the tension side. The beam has a stirrup with a diameter of 10 mm. Use fc=28 Mpa and fy=420 MPa b= 197.5 mm d= 317.5mm L= 2.7 Wd = 13.75 kN/m WL = 17.75 kN/m Calculate the nominal moment capacity of the beam Calculate that strain of the tension bars. Calculate the strength reduction factor of the beam
Given: - Density of concrete = 2260kg/cu m. - Uplift pressure, U : full at the heel to zero at the toe Solve for the FS against overturning. 13.8m 3m 6m
A vertical load Wis applied on a rigid plate supported on three vertical concrete pillars each 250 mm x 250 mm in cross-section. Initially the outer pillars are 1.75 m high while the middle pillar is 0.35 mm shorter. Find the safe load W, if the stress in concrete in outer pillar should not exceed 3.5 N/mm². Take E = 12500 N/mm². 1.75 m- WI 0.35 mm
SITUATION 1: A 250 mm wide rectangular concrete beam is reinforced for tension only. The beam has an effective depth of 300 mm. fc' = 9.3 MPa, fs = 138 MPa, n = 9. Use working stress design for balanced %3D condition. 1. Which of the following most nearly gives the value of k. a. 0.3225 c. 0.6234 b. 0.3526 d. 0.3775 2. Which of the following most nearly gives the value of j. a. 0.7482 c. 0.8742 b. 0.8472 d. 0.4278 3. Which of the following most nearly gives the balanced moment capacity of the beam in kN.m. a. 34.52 C. 36.7 b. 45.36 d. 32.3
5. A 30 cm radius Cast iron main leads from a reservoir whose water surface is at EL. 1590m. In the heart of the city the main, below ground level, is at EL. 1410m. (a) What is the net pressure (b) Assuming static conditions, what is the stress in the pipe wall if the wall thickness is 12.00 mm and the external soil pressure is 250 kPa?6. A continuous wood stave pipe is 2.5 m in diameter and is in service under a head of 30.0 m of water. The staves are secure by means of round 25 mm steel hoops with an allowable stress of 105 MPa. Fine the maximum snarings of the hoops to safely secure the nine.
8 Design a lintel over an opening of 3.5 m. The lintel is made in a wall 400 mm Ex thick. The lintel has to support a uniform load of 50 kN in addition to the masonry. The weight of the masonry may be assumed to be 19.2 kN/m° and the height of brick work above the lintel is 4.0 m. The yield stress of the steel may be assumed 250 N/mm2.
A prestressed beam has a cross section of 250 mm x 500 mm and has a simple span of 6 m. The tendons are placed 70 mm above the bottom of the beam. The wires used are stress relieved tendons with fpu= 1350 MPa and fpe= 760 MPa, fc'=35 MPa. The prestressed beam is not to be grouted after application of the prestress. Aps= 1000 sq. mm Compute the stress in prestressed reinforcement at nominal strength. Compute the ultimate moment capacity of the prestressed beam. Compute the safe live load that the prestressed beam could carry.
A 250 mm wide rectangular concrete beam is reinforced for tension only. The beam has an effective depth of 300 mm. fc’ = 9.3 MPa, fs = 138 MPa, n = 9. Use working stress design for balanced condition. 1. Which of the following most nearly gives the value of k. a. 0.3225 b. 0.3526 c. 0.6234 d. 0.3775 2. Which of the following most nearly gives the value of j. a. 0.7482 b. 0.8472 c. 0.8742 d. 0.4278 3. Which of the following most nearly gives the balanced moment capacity of the beam in kN.m. a. 34.52 b. 45.36 c. 36.7 d. 32.3
1.50 The cylindrical steel column has an outer diameter of 4 in. and inner diame- ter of 3.5 in. The column is separated from the concrete foundation by a square bearing plate. The working compressive stress is 26000 psi for the column, and the working bearing stress is 1200 psi for concrete. Find the largest force P that can be applied to the column.
A prestressed beam has a cross section of 250 mm x 500 mm and has a simple span of 6 m. The tendons are placed 70 mm above the bottom of the beam. The wires used are stress relieved tendons with fpu= 1350 MPa and fpe= 760 MPa, fc'=35 MPa. The prestressed beam is not to be grouted after application of the prestress. Aps= 1000 sq. mm 1. Compute the stress in prestressed reinforcement at nominal strength. a. 868 MPa b. 960 MPa c. 759 MPa d. 672 MPa 2. Compute the ultimate moment capacity of the prestressed beam. a. 158 KN-m b. 225 KN-m c. 290 KN-m d. 327 KN-m 3. Compute the safe live load that the prestressed beam could carry. a. 35.49 KN/m b. 38.07 KN/m c. 40.95 KN/m d. 31.87 KN/m
Design of a Cylindrical Reinforced Concrete Tank with Flexible Joint at base resting on ground for a capacity of 720 m'. The Tank top is open with a height of 3 m. Use, Yw = 11 kN/m², f, = 110 N/mm2 f.´ = 13 N/mm², f; = 1.1 N/mm? , E, = 200000 N/mm2 Follow the conditions below: 1. Use Ø 25 for Horizontal Steel Reinforcement. 2. Use Spacing {S} don't exceed 210 mm at Vertical Steel Reinforcement NOTE: You may use any suggestions to improve your designs.