Precast Wall Compression
1
Design of Concrete Wall in Compression: Strentherning wall Design as per AS3600_11.4, simplified design method for braced w N* = 1188 kN/m M* = 118.8 kN-m/m = 3400 mm = 380 mm = 8.947368 <=30, OK φ = 0.6 = e = 63 mm = 12.17 mm = 25 MPa = 2520.57 N/mm ==> 2520.57 kN/m since, φNu>=N*, OK Check reinforcement to resist moment: For Double Layers Mesh, 1 each face d = 340 mm = 1028 (minimum vertical reinforcemen Adopt 3-N20 vertical bars with N12 horizontal bar @250cts Hwe tw Hwe/tw Nu (tw −1.2e − 2ea) 0.6 fc ′ ea f'c φNu Ast mm 2 A st , required = M∗¿ 10 6 0.8×0.85× 500×d
-
Upload
heung-yeung-cheuk -
Category
Documents
-
view
13 -
download
1
description
1
Transcript of Precast Wall Compression
Design of Concrete Wall in Compression: Strentherning wallDesign as per AS3600_11.4, simplified design method for braced walls,
N* = 1188 kN/mM* = 118.8 kN-m/m
= 3400 mm
= 380 mm
= 8.947368 <=30, OK
φ = 0.6
=
e = 63 mm
= 12.17 mm
= 25 MPa
= 2520.57 N/mm ==> 2520.57 kN/m
since, φNu>=N*, OK
Check reinforcement to resist moment:
For Double Layers Mesh, 1 each face
d = 340 mm
= 1028 (minimum vertical reinforcement)
Adopt 3-N20 vertical bars with N12 horizontal bar @250cts
Hwe
tw
Hwe/tw
Nu (tw −1.2e − 2ea) 0.6 fc ′
ea
f'c
φNu
Ast mm2
Ast , required=M∗¿106
0 .8×0 .85×500×d
C17
Structural Systems Pty Ltd: If endbearing on the wall, e=0 if slab connected to the side of the wall, e=tw/2-(tw/3)
