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This document provides design specifications for a reinforced concrete stair, including material properties and dimensions. The stair is to be designed with a specified live load (SDL) of 40 kg/cm2 and a landing load (LL) of 400 kg/cm2. Reinforcing bar types to be used include SR24 steel with yield strength of 2,400 kg/cm2 and SD40 steel with yield strength of 4,000 kg/cm2. Worked detail size (WSD) and steel density method (SDM) are recommended for design. Dimensional guidelines for treads and risers are provided in two diagrams.

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74 views1 page

Project 2

This document provides design specifications for a reinforced concrete stair, including material properties and dimensions. The stair is to be designed with a specified live load (SDL) of 40 kg/cm2 and a landing load (LL) of 400 kg/cm2. Reinforcing bar types to be used include SR24 steel with yield strength of 2,400 kg/cm2 and SD40 steel with yield strength of 4,000 kg/cm2. Worked detail size (WSD) and steel density method (SDM) are recommended for design. Dimensional guidelines for treads and risers are provided in two diagrams.

Uploaded by

lavy
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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430431 REINFORCED CONCRETE DESIGN

School of Civil Engineering, Institute of Engineering

Suranaree University of Technology

P2 STAIR DESIGN DUE : 14 JULY 2010

กก
ก  B51ABCDE  ก ก !"#$"%#&$% SDL = 40
ก.ก./&.%. ก ก LL = 400 ก.ก./&.%. %%&$)*"+!"#*)&% %#%,%

  : )ก!& : f’c = 240 kg/cm2
#-ก#$%: SR24 : fy = 2,400 kg/cm2
SD40 : fy = 4,000 kg/cm2

ก ST  
 WSD  SDM

ก  
กก !" #  $ก

2.A m
1.5 + D/6 m 1.5 + D/6 m

3.B m 1.C m

3.B m 1.C m

2.A m

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