Sea?Union(?HK)?Engineering?Limited`?
Proposed?Stainless?Steel?304?Frame?for?Swimming?
Pool?and?Gym?Room?for?Tin?Shui?Wai?
Design?Calculation??
Date:?17?JAN?2024
Table?of?Content:?
1. Introduction?2. Scope?of?Works?3. Design?Loading?4. Material?Properties?5. Design?Result???????
?
?
1. Introduction?
A?proposed?Stainless?Steel?304?Frame??will?be?constructed?at?Swimming?Pool?and?Gym?Room?of?Tin?Shui?Wai.?This?report?would?present?the?design?calculation?to?confirm?all?structural?stability?checking.?
2. Scope?of?Works?
This?report?would?present?the?design?calculation?mentioned?above.?
3. Design?Loading?
In?accordance?to?the?Code?of?Practice?on?Wind?Effects?in?Hong?Kong?2004?For?Swimming?Pool?and?Gym?Room?of?Tin?Shui?Wai??Dead?Load?q=25kg/m2=0.25Pa?
In?accordance?to?the??Code?of?Practice?for?the?Structural?Use?of?Steel?–?2011?as?per?clause?2.5.8?Horizontal?load?0.5kPa?
Material?Properties?
The?adopted?material?properties?was?listed?as?below:‐?Steel?grade:?
S304?
?
4. Design?Result?
By?considering?the?above?discussed?design?loadings,?the?structural?design?wered?enclosed??below?
?
5. Design?References?
‐ SCI?PUBLICATION?P291?Design?manual?for?structural?stainless?steel??‐ Code?of?Practice?for?Dead?Load?and?Imposed?Loads?2011?
?
CALCULATION?CHECKING(CASE?1?)?(1200mm X 1200mm Typical )Design?Load
Selfweight?of?Baffle?Ceiling=Dead?Load
DL
=
25/
(Weight=?25.0kg/m2=0.25kN/m2?)Load?Width?(1200mm?C/C)w=Span
L
=
Load?Case:?1.4xDL1.4DL?
q=1.4xBending?MomentM=0.42xShear?V=0.42xLoad?Case:?1.4xDL?(Critical?Case?for?Hilti?Bolt?Checking)1.4DL?q=1.4xTension?Load?for??CheckingT
=Tension?Capacity?for?EG?M8X60
=
11.05kNM5?SS?Seff?Tapping?Screw?Loading?for?each?screw
=Nos.?of?Screw
=Tension?on?per?screw=Area?of?screw=3.14xTension?Capacity=Tension?stress
=0.42x=
21Mpa
=25kg/m2100=
0.25kPa
1.2m1.2m
0.25x1.2=1.2x1.2/8=1.2/2=0.25x1.2==
>0.42kN
===2.5x2.5==
1000/19.63
<
520Mpa
0.42kN/m
0.08kNm0.25kN
0.42kN0.42kN
0.42kN10.42kN19.6mm2
520Mpa
O.K.
WSP Hong Kong Ltd.
??Calculations ? Meeting/Conversation Notes ? Visit Notes ? Internal Memo
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Ref.
Details
40x40x3 Angle Checking
Beam Design using Code of Practice for The Structural Use of Steel 2005A)General Information
Steel Grade:S304
Effective Length, LE=1200mm
180MPaDesign strength of steel section, py=
Modulus of elasticity, E=205000MPa
B) Loading
Design Moment about major axis, Mx=
Design Shear, V=
C) Section PropertiesDesign using
Eq Angle40x40x3
to BS EN Standards
0.080.25
kNmkN
Define x as major axis of section; y as minor axis of section
Section Properties :
Mass per metreDepth of Section, DWidth of Section, BWeb Thickness, tFlange Thickness, TArea of Section, ATorsion constant, J
=======1.94040332.5N/Akg/mmmmmmmmmcm24cm
Moment of Inertia about x-axis, Ix-xMoment of Inertia about y-axis, Iy-ySection Modulus about x-axis, ZxSection Modulus about y-axis, ZyPlastic Modulus about x-axis, SxPlastic Modulus about y-axis, SyRadius of gyration about x-axis, rxRadius of gyration about y-axis, ry========3311N/AN/A1.11.1cmcm43cmcm3cm3cm3cmcm
4Clause7.2
Member Classificationb / t =d / t =
Therefore it is
D) Shear Capacity Check
40 / 340 / 3
Member Class3
==
13.313.3
<<
1515
??
, where ???
1
-> Class-> Class
33
Semi-compact section
Clause8.2.1
Shear Area, Av =tD
120mm2=
Shear Capacity, Vc=py Av / √3
=12.4kN≥V=0.25E) Moment Capacity Check
kNO.K.Clause8.2.2
Since V≤0.6 Vc, it is inMc =pyZ
=0.2>Mxlowshear conditionkNm
0.08=O.K.
kNm
香港室内吊顶计算书 cal-2
