Calculation Sheet Cuplock- Container

MANAR AL OMRAN SCAFFOLDING AND FORMWORK 

CALCULATION SHEET FOR THE CONTAINER PLATFORM

DATE

:11/28/2017

SUBJECT : DESIGN CALCULATION CALCULATION SHEET FOR 255KN CONTAINER PLATFORM. PROJECT: HEAVY DUTY SUPPORTING SCAFFOLD CONTRACTOR: AMANA STEEL BUILDING CONTRACTING

PREPARED BY: Engr. MUHAMMED ZOHAIR CHECKED BY: Engr. MUHAMMED SHAHID (Technical Head)

CALCULATION

PROJECT

:

EXTERNAL ACCESS PLATFORM

SHEET

DESIGN DEPARTMENT

CONTRACTOR : AMANA STEEL BUILDING CONTRACTING

Table of contents:

1) Codes References and Design Parameters

2) Loads Consideration

3) Relevant Standards, Material and Technical data

4) Checking Scaffolding Components

Page 2 of 9

CALCULATION

PROJECT

:

EXTERNAL ACCESS PLATFORM

SHEET

DESIGN DEPARTMENT

CONTRACTOR : AMANA STEEL BUILDING CONTRACTING

1) Code Reference BS 5975:1996 -Code of practice for false work  BS 5268-2:1991 -Structural use of timber 

2) Load Consideration

Dead Load

: self-weight of the container

Live Load

: 2.5kN/

Formwork Load

: 0.5 KN/   as per BS 5975

Page 3 of 9

CALCULATION

PROJECT

:

SHEET

DESIGN DEPARTMENT

CONTRACTOR : AMANA STEEL BUILDING

EXTERNAL ACCESS PLATFORM

CONTRACTING

3) TECHNICAL DETAILS: System Used: CUPLOCK WITH WALER AND ALUMINUM Weight of the container: 26MT or 255KN Maximum Grid Size Adopted Under Container: 1.0X1.0 M

MATERIAL TECHNICAL DATA: Wooden plank: =

6kg/m or (0.25 KN/M2)

Allowable Bending Moment

=

8.75 KN-M

Allowable Shear Force

=

45.11 KN

Allowable Bending Moment

=

11 KN-M

Allowable Shear Force

=

100 KN

=

35KN

Board (38mm Thick)

Aluminum Beam:

Steel Waler Beam:

Vertical standard leg: Safe working Load

4) Checking Scaffolding Components

Page 4 of 9

CALCULATION

PROJECT

:

SHEET

DESIGN DEPARTMENT

CONTRACTOR : AMANA STEEL BUILDING

EXTERNAL ACCESS PLATFORM

CONTRACTING

Calculation of loading intensity (per M 2) 

=

8.5 KN/M2

Weight of the formwork

=

0.5 KN/M2

Live Load

=

2.5 KN/M2

=

11.5 KN/M2

Self-Weight of the Container

=

.

(Depth x Den. Of Conc.)

TOTAL

w

a)SECONDARY BEAM (waler) : UDL on secondary beam W

= spacing x w = 0.3x 11.5 = 3.45KN/M

W = 3.45 KN/M, L=0.3M

Maximum Bending Moment

=







=



0.03< 11 KNM

Maximum Shear Force

=

=

Allowable deflection

=



0.03 KNM

=

------------------------ (SAFE)

0.6wl

0.621 < 100KN

Maximum Deflection δmax

.∗ .

=

0.6*3.45*0.3

0.621KN 

=

------------------------ (SAFE)







 



=

=

 ∗ .∗

∗∗

= 0.00042mm

0.833mm

Page 5 of 9

CALCULATION

PROJECT

:

SHEET

DESIGN DEPARTMENT

CONTRACTOR : AMANA STEEL BUILDING

EXTERNAL ACCESS PLATFORM

CONTRACTING

0.00042 0.0172 KNm

c) Aluminum Beam: The load get transfer to the Aluminum beam, which are under wooden planks acting as a secondary beam for the primary MAin waler, which are under U-head

Maximum Shear Force

= 2.24 < 45.11KN

2.24 KN ------------------------ (SAFE)

Page 6 of 9

CALCULATION

PROJECT

:

=

DESIGN DEPARTMENT

CONTRACTOR : AMANA STEEL BUILDING

EXTERNAL ACCESS PLATFORM

Maximum bending moment

SHEET

CONTRACTING

0.52 KNM

0.52 < 8.75KNM

------------------------ (SAFE)

Maximum Deflection δmax

=0.16 mm

Allowable deflection

=

 

0.16< 2.77 mm

=

2.77 mm

------------------------ (SAFE)

d)PRIMARY BEAM(Main waler ) : Maximum Span of Aluminum =1.0m Allowable Deflection = L/360= 1000/360= 2.77mm. Load on Aluminum =2 x Reaction from Secondary = 2 x 2.24 = 4.48 KN @0.2m c/c

Page 7 of 9

CALCULATION

PROJECT

:

DESIGN DEPARTMENT

CONTRACTOR : AMANA STEEL BUILDING

EXTERNAL ACCESS PLATFORM

Maximum Shear Force

SHEET

CONTRACTING

= 8.96 KN 8.96 < 100KN

Maximum bending moment

------------------------ (SAFE)

=

2.69 < 11.4KNm

------------------------ (SAFE)

Maximum Deflection δmax

=0.03 mm

Allowable deflection

= 0.03< 2.77 mm

2.69 KNm

 

=

2.77 mm

------------------------ (SAFE)

Page 8 of 9

CALCULATION

PROJECT

:

EXTERNAL ACCESS PLATFORM

SHEET

DESIGN DEPARTMENT

CONTRACTOR : AMANA STEEL BUILDING CONTRACTING

e) Vertical standard leg: Load intensity

= 11.5 KN/M2

THEREFORE LOAD ON ONE VERTICAL STANDARD LEG  = 11.5x1.0x1.0

= 11.5 KN  Allowable load on one leg = 35 KN (STANDARD)

11.5 KN< 35KN -------------------- (SAFE)

Page 9 of 9