Murphy Calcs Two Skins
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Longholmedesign Buildingplans makingplansforyourextension Proposed Project
Kitchen Extension
Client
Mr & Mrs J. Murphy
Project Address
Maple Lodge, 1 Alison Drive, Camberley, GU15H2DY 01293 821576
Drawing Number
LHD2609
Issue 1
11/30/2009
Summary Sheet Kitchen Extension Steel Beam Steel Beam Type Steel I section Size 230 x 90 x 32 Span 4.5 M Nominal length 5.1 M Total Quantity 2
Kg/M2
See Last Page for Standard Loadings Assumptions (where applicable):-
· · · · · · · .
Prefabricated trussed roof spanning front to rear unless otherwise stated First floor spans ½ depth of building First floor ceiling spans ½ depth of building Steel Joists to BS4 and BS449 Grade 43c unless otherwise stated E=210000 KN/m2 & Max. Shear stress 110 N/mm2 for steel joists to BS449 Timber to strength Class SC3 unless otherwise stated Assume min. permissable compressive stress on inner blockwork 2.8 N/mm
(Thermolite Turbo or better)
Chris Holmes F.T.C 01293 416247 Peter Long IEng MIED 01342 714214
12 Haversham Close, Three Bridges, Crawley, West Sussex RH10 1LB [email protected] 6 Hillside, Crawley Down, West Sussex RH10 4XD 07773255553 [email protected]
LHD2609
Longholmedesign Kitchen Extension Steel Beam Existing roof 6000 / 2 = 3000mm
Spine Wall
Ex. Roof space 4000 / 2 = 2000mm
Partition wall 4000 / 2 = 2000mm perpendicular to new beam New vaulted ceiling 5000 / 2 = 2500mm
Bathroom wall 3200mm high Bathroom floor 4000 / 2 =2000mm Beam Length 4500mm
Loading at A kN/m2
Area (m2)per M span of beam
UDL New Pitch Roof Existing Pitch roof Existing Roof Space New Roof Space Flat Roof (New) Flat Roof (ex.) Ex. Loft area ceiling Timber floors & Partitions Brick & block Ex. Stud wall
1.85 1.85 2.15 2.15 1.55 1.55 2.00 3.00 3.30 1.00
X X X X X X X X X X
2.50 3.00 0.00 2.00 0.00 0.00 0.00 2.00 3.20 0.00
4.63 5.55 0.00 4.30 0.00 0.00 0.00 6.00 10.56 0.00
TOTAL
31.04 Kn/m run of beam
Area
69.83 kN load
Chris Holmes F.T.C
Span of Beam = Total UDL =
4.50 31.04
Total load = max. allowable deflection =
139.66
01342 714214
kN 1.25 cm
12 Haversham Close, Three Bridges, Crawley, West Sussex RH10 1LB
01293 416247 Peter Long IEng MIED
M kN/M
[email protected] 6 Hillside, Crawley Down, West Sussex RH10 4XD 07773255553
[email protected]
69.83 kN load
LHD2609
Longholmedesign Min. mmt of inertia reqd:I=
5wL3 384Ed
w = total load 139.66 L = beam length 450.00 E = mod. Of elast. 21000.00 d = max allow. Deflect. 1.25
where:-
6312.64 cm4
I = min. mmt. of inertia PFC with mmt of inertia of = Total mmt of inertia for 1 off=
kN cm kN/cm2 cm
230 x 90 x 32 kg/m cm4 3518 cm4 7036 180.00 mm
Flange width= max.shear:shear at each end = channel web height = Total channel web width =
OK
Actual shear = Max. allowable =
69.83 kN 178.00 mm 30.00 mm 13.08 N/mm2 110.00 N/mm2
max. bending stress:-
OK
Actual bending mmt. =
157.11 kNm
Actual Z = Z for channel =
95.22 cm3 306.00 cm3
Concrete pads:One pad supports 2 beams Load at each end = 69.83 kN Total pad width = 300.00 mm min. Length of support = 162.93 mm say 300.00 mm Concrete pads or steel spreader plates to have minimum CSA of 48880.13 mm2 example 300 x 300 mm Chris Holmes F.T.C
12 Haversham Close, Three Bridges, Crawley, West Sussex RH10 1LB
01293 416247 Peter Long IEng MIED 01342 714214
[email protected] 6 Hillside, Crawley Down, West Sussex RH10 4XD 07773255553
[email protected]
Longholmedesign Pitch Roof
Walls Tiles
0.6 KN/m2
Timber Stud Internal
Battens &Felt
0.1 KN/m2
Plasterboard
Rafters
0.15 KN/m2
Superload (snow)
Studs
1.00KN/m2
TOTAL
1.85kN/m2
Roof Space
Plasterboard TOTAL
0.15KN/m2 0.1KN/m2 0.15KN/m2 0.4KN/m2
Lath & Plaster
Joists & Insulation
0.15KN/m2
Studs
Soffite
0.15KN/m2
Lath & Plaster
Total DEAD load
1.15KN/m2
TOTAL
1.0KN/m2
Timber Stud External
Total LIVE load TOTAL
2.15KN/m2
Flat Roof Chippings & Felt Soffite Total LIVE load TOTAL
0.55KN/m2
Battens/Felt/Insul.
0.1KN/m2
Studs
0.1KN/m2
0.3KN/m2
Total DEAD load
0.25KN/m2 0.6KN/m2
Tiles
0.35KN/m2
Brds & Joists & Firgs
0.1KN/m2
Plasterboard
0.15KN/m2
TOTAL
0.8KN/m2
Brick and Blockwork
0.75KN/m2
Cavity Construction
1.55KN/m2
0.15KN/m2 0.9KN/m2
Brick 102mm
2.0 KN/m2
Block
1.0 KN/m2
Plaster (one face)
0.3 KN/m2
Timber Floors Boards & Joists
0.35KN/m2
Soffite
0.15KN/m2
TOTAL
Total DEAD load
0.5KN/m2
Solid Construction
Total LIVE load
1.5KN/m2
Brick 215mm
4.2 KN/m2
Plaster (two faces)
0.5 KN/m2
TOTAL
2.0KN/m2
Timber floors & Partitions
TOTAL
Total DEAD load
1.5KN/m2
Total LIVE load
1.5KN/m2
TOTAL
Chris Holmes F.T.C
3.0KN/m2
12 Haversham Close, Three Bridges, Crawley, West Sussex RH10 1LB
01293 416247 Peter Long IEng MIED 01342 714214
3.3KN/m2
[email protected] 6 Hillside, Crawley Down, West Sussex RH10 4XD 07773255553
[email protected]
4.7KN/m2
Kitchen Extension
Client
Mr & Mrs J. Murphy
Project Address
Maple Lodge, 1 Alison Drive, Camberley, GU15H2DY 01293 821576
Drawing Number
LHD2609
Issue 1
11/30/2009
Summary Sheet Kitchen Extension Steel Beam Steel Beam Type Steel I section Size 230 x 90 x 32 Span 4.5 M Nominal length 5.1 M Total Quantity 2
Kg/M2
See Last Page for Standard Loadings Assumptions (where applicable):-
· · · · · · · .
Prefabricated trussed roof spanning front to rear unless otherwise stated First floor spans ½ depth of building First floor ceiling spans ½ depth of building Steel Joists to BS4 and BS449 Grade 43c unless otherwise stated E=210000 KN/m2 & Max. Shear stress 110 N/mm2 for steel joists to BS449 Timber to strength Class SC3 unless otherwise stated Assume min. permissable compressive stress on inner blockwork 2.8 N/mm
(Thermolite Turbo or better)
Chris Holmes F.T.C 01293 416247 Peter Long IEng MIED 01342 714214
12 Haversham Close, Three Bridges, Crawley, West Sussex RH10 1LB [email protected] 6 Hillside, Crawley Down, West Sussex RH10 4XD 07773255553 [email protected]
LHD2609
Longholmedesign Kitchen Extension Steel Beam Existing roof 6000 / 2 = 3000mm
Spine Wall
Ex. Roof space 4000 / 2 = 2000mm
Partition wall 4000 / 2 = 2000mm perpendicular to new beam New vaulted ceiling 5000 / 2 = 2500mm
Bathroom wall 3200mm high Bathroom floor 4000 / 2 =2000mm Beam Length 4500mm
Loading at A kN/m2
Area (m2)per M span of beam
UDL New Pitch Roof Existing Pitch roof Existing Roof Space New Roof Space Flat Roof (New) Flat Roof (ex.) Ex. Loft area ceiling Timber floors & Partitions Brick & block Ex. Stud wall
1.85 1.85 2.15 2.15 1.55 1.55 2.00 3.00 3.30 1.00
X X X X X X X X X X
2.50 3.00 0.00 2.00 0.00 0.00 0.00 2.00 3.20 0.00
4.63 5.55 0.00 4.30 0.00 0.00 0.00 6.00 10.56 0.00
TOTAL
31.04 Kn/m run of beam
Area
69.83 kN load
Chris Holmes F.T.C
Span of Beam = Total UDL =
4.50 31.04
Total load = max. allowable deflection =
139.66
01342 714214
kN 1.25 cm
12 Haversham Close, Three Bridges, Crawley, West Sussex RH10 1LB
01293 416247 Peter Long IEng MIED
M kN/M
[email protected] 6 Hillside, Crawley Down, West Sussex RH10 4XD 07773255553
[email protected]
69.83 kN load
LHD2609
Longholmedesign Min. mmt of inertia reqd:I=
5wL3 384Ed
w = total load 139.66 L = beam length 450.00 E = mod. Of elast. 21000.00 d = max allow. Deflect. 1.25
where:-
6312.64 cm4
I = min. mmt. of inertia PFC with mmt of inertia of = Total mmt of inertia for 1 off=
kN cm kN/cm2 cm
230 x 90 x 32 kg/m cm4 3518 cm4 7036 180.00 mm
Flange width= max.shear:shear at each end = channel web height = Total channel web width =
OK
Actual shear = Max. allowable =
69.83 kN 178.00 mm 30.00 mm 13.08 N/mm2 110.00 N/mm2
max. bending stress:-
OK
Actual bending mmt. =
157.11 kNm
Actual Z = Z for channel =
95.22 cm3 306.00 cm3
Concrete pads:One pad supports 2 beams Load at each end = 69.83 kN Total pad width = 300.00 mm min. Length of support = 162.93 mm say 300.00 mm Concrete pads or steel spreader plates to have minimum CSA of 48880.13 mm2 example 300 x 300 mm Chris Holmes F.T.C
12 Haversham Close, Three Bridges, Crawley, West Sussex RH10 1LB
01293 416247 Peter Long IEng MIED 01342 714214
[email protected] 6 Hillside, Crawley Down, West Sussex RH10 4XD 07773255553
[email protected]
Longholmedesign Pitch Roof
Walls Tiles
0.6 KN/m2
Timber Stud Internal
Battens &Felt
0.1 KN/m2
Plasterboard
Rafters
0.15 KN/m2
Superload (snow)
Studs
1.00KN/m2
TOTAL
1.85kN/m2
Roof Space
Plasterboard TOTAL
0.15KN/m2 0.1KN/m2 0.15KN/m2 0.4KN/m2
Lath & Plaster
Joists & Insulation
0.15KN/m2
Studs
Soffite
0.15KN/m2
Lath & Plaster
Total DEAD load
1.15KN/m2
TOTAL
1.0KN/m2
Timber Stud External
Total LIVE load TOTAL
2.15KN/m2
Flat Roof Chippings & Felt Soffite Total LIVE load TOTAL
0.55KN/m2
Battens/Felt/Insul.
0.1KN/m2
Studs
0.1KN/m2
0.3KN/m2
Total DEAD load
0.25KN/m2 0.6KN/m2
Tiles
0.35KN/m2
Brds & Joists & Firgs
0.1KN/m2
Plasterboard
0.15KN/m2
TOTAL
0.8KN/m2
Brick and Blockwork
0.75KN/m2
Cavity Construction
1.55KN/m2
0.15KN/m2 0.9KN/m2
Brick 102mm
2.0 KN/m2
Block
1.0 KN/m2
Plaster (one face)
0.3 KN/m2
Timber Floors Boards & Joists
0.35KN/m2
Soffite
0.15KN/m2
TOTAL
Total DEAD load
0.5KN/m2
Solid Construction
Total LIVE load
1.5KN/m2
Brick 215mm
4.2 KN/m2
Plaster (two faces)
0.5 KN/m2
TOTAL
2.0KN/m2
Timber floors & Partitions
TOTAL
Total DEAD load
1.5KN/m2
Total LIVE load
1.5KN/m2
TOTAL
Chris Holmes F.T.C
3.0KN/m2
12 Haversham Close, Three Bridges, Crawley, West Sussex RH10 1LB
01293 416247 Peter Long IEng MIED 01342 714214
3.3KN/m2
[email protected] 6 Hillside, Crawley Down, West Sussex RH10 4XD 07773255553
[email protected]
4.7KN/m2
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