(b) A residential building is to be constructed in Ghala. Strip footing is proposed for the walls of the building. The following data are available for the design of the foundation: x=5 Thickness of wall | 20 cm Height of walls (500 + x ) cm Type of walls Block masonry Unit weight of block masonry 20 kN/m3 Dead load on the wall (40 + x) kN/m Superimposed load (25 + x) kN/m Safe capacity of the subsoil (145 + x) kN/m² Unit weight of soil 15.5 kN/m3 Angle of repose of the soil 30 degrees

(b) A residential building is to be constructed in Ghala. Strip footing is proposed for the walls of the building. The following data are available for the design of the foundation: x=5 Thickness of wall | 20 cm Height of walls (500 + x ) cm Type of walls Block masonry Unit weight of block masonry 20 kN/m3 Dead load on the wall (40 + x) kN/m Superimposed load (25 + x) kN/m Safe capacity of the subsoil (145 + x) kN/m² Unit weight of soil 15.5 kN/m3 Angle of repose of the soil 30 degrees

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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Strength of Materials 5.4 Assuming a density of 120 #/ft.3 for masonry brick- work, determine the maximum height of a brick wall if the allowable compressive stress is limited to 150 #/in.² and the brick is (a) four inches wide and (b) six inches wide. 14 www WISS AK 4 THICK BRICK MASONRY WALL 263
Shear Stress 4. Please provide proper discussion and illustration. Clear and complete solution please thank you. Design studies for a planned building indicate that the foundation loading will cause the principal stress in the soil at one point below the building area to increase to 195 kPa and 70 kPa (major and minor principal stress values, respectively). If the soil is a dry sand having an angle of internal friction equal to 340, determine if the indicated stresses would cause shear failure to occur.
4. A 2.10m x 2.10m footing carries concentrically a square column 0.40m x 0.40m. Design data: Column factored loads: DL = 570KN = 460KN %3D Concrete cover to the centroid of footing reinforcement = 110mm Concrete f'c - 21MPA Steel fy= 415MPA %3D %3D Allowable stresses at ultimate loads: For diagonal tension or two-way action shear = 1.52MPA For wide-beam shear 0.78MPA Maximum steel ratio for moment = 0.016 a. What is the minimum thickness (mm) of footing required for punching shear? b. Determine the minimum thickness (mm) of footing required for wide beam shear. Determine the minimum thickness (mm) of footing required for maximum moment. C.
Problem 4 A footing supports a 200mm thick concrete wall. Wall loads: = 175 Dead Load kN/m 89 %D Live Load kN/m = 20.6 %3D Concrete, f'c MPа = 415 Steel, fy MPа Unit weight = 23.6 of concrete kN/m3 Factored = 1.2D load + 1.6L combination Thickness of = footing 350mm Steel Cover ( bottom of footing to centroid of 90mm bars)
(b) A residential building is to be constructed in Ghala. Strip footing is proposed for the walls of the building. The following data are available for the design of the foundation: Thickness of wall 20 cm Height of walls (500 + x ) cm Type of walls Block masonry x=5 Unit weight of block masonry 20 kN/m3 Dead load on the wall (40 + x) kN/m Superimposed load (25 + x) kN/m Safe capacity of the subsoil (145 + x) kN/m² Unit weight of soil 15.5 kN/m3 Angle of repose of the soil 30 degrees Calculate : (i) Minimum depth of foundation, using Rankine's theory (ii) Width of strip foundation
Figure 5 summarizes the loading on two footings. What will be the increase in thevertical stress (Licrv) at point A which is located in the middle of two foundations and is 2meters deep from the ground surface? Calculation should be performed using twodifferent methods.
A rectangular footing 2.1 m x 3.6 m x 0.35 m thick supports a 300 mm square column at its center. Column loads are service conditions: DL = 346 kN LL = 231 kN f'c = 21 MPa fy = 415 MPa Concrete cover to the centroid of steel reinforcement = 100 mm Calculate the nominal punching shear stress in the slab. Write your final answer with 2 decimal places if the unit is MPA. Selected Answer: O 1.92 Correct Answer: 1.83 ±0.01
A structural engineer wants to consider placing the base of the building so deep that the soil below will not experience any additional load. They asked you to design a fully compensated mat foundation under the entire building. They has determine that the plan view of the building will be 65 ft by 65 feet. and the building will weighs 10,790 kips. The clayey soil beneath the site has a cohesion of 418 psf and the unit weight of the soil is 118 pcf. How deep will they have to place the structure to fully compensate for the weight of the building.
a square footing 2.4 m x 0.34 m thick supports a 300 mm square column at its center. column loads are service conditions:DL = 376 kN LL = 213 kN f'c = 21 MPa fy = 415 MPa Concrete cover to the centroid of steel reinforcement = 100 mm calculate the nominal one way shear stress in the slab. write your final answer with 2 decimal places if the unit is MPA.
A square footing 2 m x 0.36 m thick supports a 300 mm square column at its center. Column loads are service conditions: DL = 328 kN LL = 210 kN f'c = 21 MPa fy = 415 MPa Concrete cover to the centroid of steel reinforcement = 100 mm Calculate the nominal one way shear stress in the slab. Write your final answer with 2 decimal places if the unit is MPA.
A rectangular footing 2.4 m x 3.4 m x 0.33 m thick supports a 300 mm square column at its center. Column loads are service conditions: DL = 327 kN LL = 244 kN f’c = 21 MPa fy = 415 MPa Concrete cover to the centroid of steel reinforcement = 100 mm Calculate the nominal punching shear stress in the slab. Write your final answer with 2 decimal places if the unit is MPA.
(b) A residential building is to be constructed in Ghala. Strip footing is proposed for the walls of the building. The following data are available for the design of the foundation: Thickness of wall 20 cm Height of walls (500 + x) cm Type of walls Block masonry Unit weight of block masonry 20 kN/m3 Dead load on the wall (40 + x) kN/m Superimposed load (25 + x) kN/m Safe capacity of the subsoil (145 + x) kN/m2 Unit weight of soil 15.5 kN/m3 Angle of repose of the soil 30 degrees [x = the last digit of your student number] Calculate : X=5 (i) Minimum depth of foundation, using Rankine's theory (ii) Width of strip foundation