An-Isotropically reinforced slab-supported as shown in the following Fig. carrying asingle concentrated load (P). Determine the maximum force (P) which cause the collapse(neglect slab weight), fc' 30MPa, fy 350MPa."15cm3cm10@25cm4mFree3mFree$12@20cm bent up 75%3m3m

To determine the maximum force P that will cause the collapse of the isotropically reinforced slab,…

Answered: An-Isotropically reinforced…

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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A simply supported 20 m effective span RCC rectangular beam 600 mm x 1500 mm is reinforced throughout with 21-25 mm bars in three layers of 7 bars in each layer at a clear cover of 40 mm to tensile reinforcement. The reinforcement in compression face is 5-25 mm bars in one layer at an effective cover of 50 mm. The clear cover between the different layers on tension face is 25 mm. What is the maximum bending moment at the limit state of collapse (in kNm)? [Take fsc = 0.8f, M25 grade concrete, Fe415 grade steel]
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In the design of beam for the limit state of collapse in flexure as per IS 456 : 2000, let the maximum strain in concrete be limited to 0.0030 (in place of 0.0035) for this situation consider a rectangular beam section of width 300 mm, effective depth as 400 mm, area of tension steel used is 900 mm2. Material used is M20 concrete mix Fe415 grade steel (a) Limiting depth of neutral axis (b) Actual depth of neutral axis
At the limit state of collapse, an RC beam is subjected to flexural moment 200 kNm, shear force 20 kN and torque 9 kNm. The beam is 300 mm wide and has a gross depth of 425 mm, with an effective cover of 25 mm. The equivalent nominal shear stress (t) as calculated by using the design code turns out to be more than the design shear strength (T) of concrete, The equivalent shear force and equialent flexural moment ?
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A short column 20cm*20cm in section is reinforced with 4 bars whose area of cross- section is 20 sq.cm. If permissible compressive stresses in concrete and steel are 40 kg/cm2 and 300 kg/cm2, the safe load on the column should not exceed ?
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Immediately after prestressing, a post-tensioned bonded concrete beam has a prestress of 1560kN in the steel, which gradually reduces to 1330 kN. In addition to its own weight of 4.40 kN/m,the beam bears two live loads shown in the figure below. Calculate the mid-span fiber stresses: a. with full prestress and no live load in the initial conditionb. with full live load and in final condition after all losses had occurred
I want to solve question 1040 and the question information from question number 1039
A rectangular beam 200 mm wide has an effective depth of 350 mm. It is subjected to a bending moment of 24,000 Nm. The permissible stresses are c = 5 N/mm², t = 140 N/mm²; and m is 18. The required area of tensile reinforcement will be.
A concrete floor slab measuring 6 m x 3 m is simply supported on one side brick load bearing walls along the 6 m sides. The concrete slab is 200 mm thick and reinforced at the bottom as follows.1. Main reinforcement (short span i.e the bars are parallel to the short span), Y 12, shape code 34 @ 125 mm centre to centre,2. Distribution reinforcement (long span i.e the bars are parallel to the long span), Y 10, shape code 20 @ 300 mm centre to centre,3. Concrete cover, 30mm,4. Concrete strength, 40MPa.Draw the reinforcement layout for this slab, in plan and section, indicating all the reinforcement and necessary information required by the contractor. You must calculate and indicate the number of bars required on your drawing. You do not need to calculate the bar lengths and the curtailment. Your drawing must be neat.
Problem 3: The 3m length reinforced concrete post with a cross section of regular pentagon has a side of 100mm is loaded an axial compressive load of 450kN. How many 20mm diameter bars required if the allowable stresses are 130MPA and 21MPA for the steel and concrete, respectively. The moduli of elasticity are 14GPA and 200GPa for the concrete and steel, respectively.

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An-Isotropically reinforced slab-supported as shown in the following Fig. carrying a single concentrated load (P). Determine the maximum force (P) which cause the collapse (neglect slab weight), fc' 30MPa, fy 350MPa." 15cm 3cm 10@25cm 4m Free 3m Free $12@20cm bent up 75% 3m 3m