A footing 2m wide x 2m long and 0.45 thick carries a square column 0.40m x 0.40m on its center. Given: d= 0.35 Fc'= 28 MPa fy= 415 MPa Allowable stress at ultimate loads: For two-way action shear = 1.76 MPa Wide beam shear = 0.88 MPa 1) 2) Determine the allowable axial load at the ultimate condition based on two-way action. Determine the allowable axial load at ultimate stresses based on wide beam shear. The design moment at ultimate loads at the face of the column is 300 kN.m. How many 20mmø bars are required? 3)

A footing 2m wide x 2m long and 0.45 thick carries a square column 0.40m x 0.40m on its center. Given: d= 0.35 Fc'= 28 MPa fy= 415 MPa Allowable stress at ultimate loads: For two-way action shear = 1.76 MPa Wide beam shear = 0.88 MPa 1) 2) Determine the allowable axial load at the ultimate condition based on two-way action. Determine the allowable axial load at ultimate stresses based on wide beam shear. The design moment at ultimate loads at the face of the column is 300 kN.m. How many 20mmø bars are required? 3)

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

10 KN 20 KN / m 5 KN / m A B SIMPLE STRESSES 5 KN / m D 50 KN-m 5 KN / m F 2. Points C and D of the 1.00 1.00 1.00 1.00 2.00 1.00 beam system shown in the figure is 500mm x (in meters) 600 mm wooden column. What is 30° 3.00 m bearing stress along the grain of the wooden post in Point C? 0.50 m
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
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
10 KN 20 KN / m 5 KN / m SIMPLE STRESSES 5 KN / m 50 KN-m 5 KN / m E 3. Points C and D of the 1.00 1.00 1.00 1.00 2.00 1.00 beam system shown in the figure is 500mm x 600 mm wooden (in meters) column. What is 30° 3.00 m bearing stress along the grain of the wooden post in Point D? 0.50 m
3. A 75 mm x 75 mm wooden block in cross section is subjected to a load P of 300 kN. The plane A makes an angle of 14 degrees with respect to the horizontal axis (x-axis). a. Determine the normal stress at section A-A. b. Determine the shear stress at section A-A. 300 kN A V 300 kN
= 1800 Determine the increase in the vertical stress at the depth of 6ft below the footing at point A. the footing has a uniformly distributed load q psf in psf 5 ft | 4 ft 2 ft PA °C 10 ft 3 ft
A simply supported concrete beam 6m long is reinforce with four-28 mm diamgram tension bars. The beam has a width of 300mm and over all depth of 400.the steel covering to the centroid of the renforcement is 70 mm fc=30mpa and fy 418mpa A .draw a stress diagram B.compute for the ultimate capacity of the beam
60 mm 150 mm 60 mm 300 mm 600 III 60 mm 150 m
What is the value of the shear stress at the neutral axis in a rectangular section of base b, height h and subjected to the shear force F? 1.3F/b O 2. (3F)/(2bh) O 3. F/2
A one way slab has a total depth of 200mm with a 20mm clear cover at the bottom. The steel reinforcement is 20 mm diameter spaced at 125mm on centers. Use f'c = 30 MPa and fy = 400 MPa. 1) Determine the depth of the stress block for a strip of slab. 2) Determine the moment capacity of the strip of slab. 3) Determine the live load per sq.m. that the slab can carry if the slab were used on a 3m simple span. Concrete mass maybe taken at 2500 kg/m³ which includes the weight of reinforcement. Use 2015 NSCP. SDL can be taken as 12 kPa/m.
3. The horizontal prestress at the centroid of a concrete beam of rectangular crosssection 120 mm and 250 mm, is 7 N/mm2 and the maximum shearing force on the beam is 70 kN. Calculate the maximum principal tensile stress. What is the minimum vertical prestress required to eliminate this principal tensile stress?
A 300 mm thick, 2.0 m wide footing slab supports a 200 mm thick concrete wall carrying uniform service dead load of 215 kN/m and service live load of 145 kN/m. Using f’c = 21 MPa and fy = 420 MPa. use flexure bar = 16mm. 1. calculate the ultimate shear force per 1-m-strip of footing slab at critical section 2. calculate the design shear strength of 1-m strip concrete footing slab 3. calculate the maximum factored wall wall that can be sustained by the footing slab based on shear strength only