PROBLEM 12.2: Design the slab (Panel C) assuming that the floor carries a uniform dead load of 1.5kN/m² excluding its own weight and a uniform live load of 4.8 kN/m². Use 12mm main bars and yc = 23.5 kN/m³.

PROBLEM 12.2: Design the slab (Panel C) assuming that the floor carries a uniform dead load of 1.5kN/m² excluding its own weight and a uniform live load of 4.8 kN/m². Use 12mm main bars and yc = 23.5 kN/m³.

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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Load and resistance factor design

Load and resistance factors design (LRFD), also known as Limit state design (LSD), refers to the design method used in building engineering. A boundary condition is a condition of a structure where it can no longer meet the relevant design requirements. The condition may refer to the load level or other actions on the structure, while the terms refer to the integrity of the structure, suitability for use, durability, or other design requirements. A structure designed for LRFD is limited to keeping track of all possible actions during its design time and is always ready for use, with the appropriate level of reliability in each boundary condition. LRFD-based construction codes clearly define the appropriate levels of reliability in their instructions.

Question

Answer using Analysis and Design of Two-way slabs in RCD NSCP 2015 with complete solution ty...

PROBLEM 12.2:
Design the slab (Panel C) assuming that the floor carries a uniform dead load of 1.5kN/m² excluding
its own weight and a uniform live load of 4.8 kN/m². Use 12mm main bars and y = 23.5 kN/m³.
6.0m
6.2m
6.0m
B2
B2
7.2m
B1
PANEL
A
B1
B1
B1
B2
78
7.4m
B1
PANEL
B
B1
PANEL
C
B1
B1
B2
B2
B2
7.2m
B1
B1
B1
B1
28
B2
B2
B1:250mm x 550mm
B2: 300mm x 550mm

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Step 2: Classification of slab

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Step 3: Ultimate design load

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Step 4: Determining moment coefficients

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Step 5: Design of negative reinforcement along shorter direction (Edge strip)

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Step 6: Design of negative reinforcement along longer direction (Edge strip)

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Step 7: Design of positive reinforcement along shorter direction (Middle strip)

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Step 8: Design of positive reinforcement along longer direction (Middle strip)

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