From 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 Mon Sep 17 00:00:00 2001
From: prashantsinalkar
Date: Tue, 10 Oct 2017 12:27:19 +0530
Subject: initial commit / add all books

---
 3683/CH1/EX1.12/Ex1_12.sce | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 3683/CH1/EX1.12/Ex1_12.sce

(limited to '3683/CH1/EX1.12')

diff --git a/3683/CH1/EX1.12/Ex1_12.sce b/3683/CH1/EX1.12/Ex1_12.sce
new file mode 100644
index 000000000..bf05bff0d
--- /dev/null
+++ b/3683/CH1/EX1.12/Ex1_12.sce
@@ -0,0 +1,12 @@
+b=250//width, in mm
+sigma_cbc=5//in MPa
+sigma_st=190//in MPa
+m=280/(3*sigma_cbc)//modular ratio
+M=75*10^6//bending moment, in N-mm
+//critical depth of neutral axis, Xc=d/(1+sigma_st/(m*sigma_cbc))=a*d
+a=1/(1+sigma_st/(m*sigma_cbc))
+d=(M/(b*sigma_cbc*a*(1-a/3)/2))^0.5//in mm
+d=640//round-off, in mm
+Xc=a*d//in mm
+Ast=b*Xc*sigma_cbc/(2*sigma_st)//in sq mm
+mprintf("Effective depth=%d mm\nArea of steel=%f mm^2",round(d),Ast)
-- 
cgit