A 300 mm x 400 mm column is to be supported by 489 m thick square footing @ itscenter. Service DL= 492 kN, service LL = 917 kN, CC to bar centroid is 90 mm, fc' =24.32 MPa and fy = 414 MPa. Consider the weight of the footing and soil to be16.76% of the dead load. SBC = 180 kPat300P00₺300Note: Present the width (B) in multiples of 100 mm.400Determine the required number of 20 mm bars parallel to the critical side.

Answered: Image /qna-images/answer/ba56fc18-454a-4bfc-a967-0a7e6f488eee.jpg

300 mm x 400 mm column is to be supported by 489 m thick square footing @it enter. Service DL = 492 kN, service LL = 917 kN, CC to bar centroid is 90 mm, fc' 4.32 MPa and fy = 414 MPa. Consider the weight of the footing and soil to be 5.76% of the dead load. SBC = 180 kPa P

300 mm x 400 mm column is to be supported by 489 m thick square footing @it enter. Service DL = 492 kN, service LL = 917 kN, CC to bar centroid is 90 mm, fc' 4.32 MPa and fy = 414 MPa. Consider the weight of the footing and soil to be 5.76% of the dead load. SBC = 180 kPa P

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: A proposed office building will include a 10 ft x10 ft square, 3 ft deep (the footing height is also…

A: Given data: Building area=10 ft*10 ft Depth of footing=3 ft Unit weight, γdry=115 pcf Frictional…

Q: A 6ft x 6ft foundation is subjected to an axial load Q = 225k and a moment M = 100k ft. The depth of…

A: Given data: Dimension of the foundation = 6ft x 6ft Axial load (Q) = 225k Moment (M) = 100 k-ft Unit…

Q: A column is supported on a footing as shown in the figure below. The water table is at a depth of 10…

A: Given- Water table at a depth of 10 m, Size of footing- 1.5 m × 3 m, Depth of footing Df=1 m, Unit…

Q: A 3.5 m square footing is proposed to be used to support a 521 mm x 376 mm RC column loaded with 675…

A: Given data:- Square footing size = 3.5m x 3.5m column size = 521 mm x 376 mm Dead Load = 675 kN Live…

Q: Design an isolated square footing: P(dead load) = 550 kN P(live load) = 375 kN M(dead load)= 125…

A: As per Bartleby's guidelines we are supposed to answer only first three questions. Kindly repost…

Q: A rectangular column footing is to be designed to carry the following column loads: PDL = 850 kN MDL…

A: Column size 500* 500mPDL = 850 kNPLL = 690 kNMDL = 160 kN-mMLL = 190 kN-mL= 1.4Bf'c = 27.6 MPafy =…

Q: Assume that y A square foundation (B x B) has to be constructed as shown in Figure 17 kN/m², Y-20…

Q: A 3.44m x 4.49m footing has a 370 mm column at center with the loads P = 597 kN and My=102.7 kN-m…

Q: A square spread footing supports a square tied column as shown. Assume that the reinforced concrete…

A: To solve this problem, we need to follow these steps:Compute the development length 𝑙𝑑 of the…

Q: QI/ for the (3m*2m) footing shown in fig. below find the column load (v) that can be carried by the…

A: Given: Size of footing = 3×2 m ϕ=20°e=0.8Gs=2.7 c=30 kN/m2 γ=19 kN/m3 Factor of safety = 3 Depth of…

Concept explainers

Design criteria for structural loading

The different loads such as loads due to self-weight (dead load) and external loads such as live load, wind loads, seismic load, snow load, and other loads and load combinations that influence the design of a building are called structural loading. The nature of the applied load differs from changes in the location, design, and type of materials used. The design criteria require that structures must be designed and constructed to be able to withstand all load types that are expected to act upon the structure and render its usage for the designated purpose. The structural members such as beams, slabs, columns, and foundations help the structure to withstand the applied load. There are different institutes such as ASCE and ACI that provide building design codes to assure minimum safety requirements and quality of the structures.

Question

A 300 mm x 400 mm column is to be supported by 489 m thick square footing @ its
center. Service DL= 492 kN, service LL = 917 kN, CC to bar centroid is 90 mm, fc' =
24.32 MPa and fy = 414 MPa. Consider the weight of the footing and soil to be
16.76% of the dead load. SBC = 180 kPa
t
300
P
00₺
300
Note: Present the width (B) in multiples of 100 mm.
400
Determine the required number of 20 mm bars parallel to the critical side.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1: Given :

VIEW

Step 2: No. of 20 mm bars required :

VIEW

Solution

VIEW

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

Q.6 A column 12" square with fe' = 5 ksi reinforced with 8 #10 bars of fy= 60 ksi, supports a service load of 91.87 kips (factored load=113.17 kips). The allowable soil pressure is 3.904 k/ft. Design a square footing with base 5' below surface. Take unit weight of soil as 100 psf. (14)
depth "z" = 16ft
A building will have a factored column load of 300 kN. The column is to be supported on a square spread footing underlain by a soil with the follow properties: c' = 5 kPa, o' 35°, y = 18.5 kN/m³. The groundwater table is at a depth of 15 m and the footing will be located 0.5 m below the ground surface. Determine the required footing size if Þ = 0.5. Use Terzaghi's bearing capacity equation for a square footing. Solve for 'B', making sure to use the reduction factor Þ; trial and error is the easiest way to solve for 'B'. Recommend a "reasonable" dimension for construction/design purposes.
Design an isolated rectangular footing: P(dead load) = 225 kN P(live load) = 130 kN Qa = 180 kPa Df = 1.5 m Unit wt. of concrete = 23.5 kN/m^3 Unit wt. of soil =17.2 kN/m^3 Bar diameter = 20 mm f`c = 20.7 MPa fy = 248 MPa Width of footing, B is limited to 2m only Column = 40 cm x 40 cm Assume height of footing = 350 mm (check adequacy, if failed - increase the depth) Use min. cover = 75 mm Determine the following: (a) Effective Soil Bearing Pressure, Qe (b) Footing Dimension, L (c) Ultimate Soil Bearing Pressure, Qu (d) Check for Shear Criteria (Beam Shear) (e) Check for Shear Criteria (Punching Shear) (f) Required Steel Area (Long and Short Direction)
Foundation and Retaining Wall Design 3 Decimal Places
Subject: Principles of Foundation Design (Use NCSP) A rectangular footing is to be used to support a 300x400 (*400mm side is parallel to the long dimension of the footing) column loaded with 420 kN dead load and 540 kN live load. One side of the footing is 4.0m. Use effective soil pressure of 70 kPa. f'c=35 MPa and fy=420 MPa. Use minimum steel ratio for longitudinal bars as 0.0018. •Calculate the required thickness of the footing (mm) based on wide beam shear. db=16mm. Size of footing should be multiples of 10mm (Answer: 300) •Calculate the required thickness of the footing based on two-way shear. db=16mm (Answer: 430) • Calculate the required number of 16mm bars along long direction. . Use the governing thickness based on shear requirements. (Answer: 22)
A 6ft x 6ft foundation is subjected to an axial load Q = 225k and a moment M = 100k ft. The depth of footing is 5ft. The soil unit wt is 125pcf, phi = 32deg and c=1000psf Find: 9min qmax e L' qult using the general BC equation