• Continuing on from Example 1)Continuing on from Example 1)
•
• Moment Capacity C25024 = 27.5 kNm (h=6.2, L = 12), Moment Capacity C25024 = 27.5 kNm (h=6.2, L = 12), (h=5, L=13)(h=5, L=13)
•
• Moment Capacity C20024 = 20.0 kNm (h=2.8, L = 12), (h=5, L=10.2Moment Capacity C20024 = 20.0 kNm (h=2.8, L = 12), (h=5, L=10.2))
•
• Draw chart oDraw chart or interpolate r interpolate on heightson heights Slope = dM/dh = (27.5 -20.0
Slope = dM/dh = (27.5 -20.0) / (6.2) / (6.2-2.8) = 2.21-2.8) = 2.21 20.0 + (5-2
20.0 + (5-2.8.8)*2.21 = 24.)*2.21 = 24.85 k85 kNmNm
•
• Draw chart or interpolate on lengthsDraw chart or interpolate on lengths
Slope = dM/dL = (27.5 -20.0) / (13-10.2) = 2.68 Slope = dM/dL = (27.5 -20.0) / (13-10.2) = 2.68 20.0 + (12-10.2)*2.68 = 24.82 kNm
20.0 + (12-10.2)*2.68 = 24.82 kNm Therefore Adopt Design Moment: 24.9 kNm.
Therefore Adopt Design Moment: 24.9 kNm.
Optimising Production Optimising Production
Typically manufacturing costs exceed material costs. However, manufacturing costs Typically manufacturing costs exceed material costs. However, manufacturing costs areare determined by product design and the materials selected. Minimum cost will be achieved determined by product design and the materials selected. Minimum cost will be achieved by adopting Design for Assembly (
by adopting Design for Assembly (DFA) and group technology phDFA) and group technology philosophies ilosophies andand minimising the total number of components in the assembled shed.
minimising the total number of components in the assembled shed.
Thus increased bay spacing would reduce the total number of fr
Thus increased bay spacing would reduce the total number of frames that requireames that require fabricating. This in turn would reduce the number of
fabricating. This in turn would reduce the number of end plates and the number of smallerend plates and the number of smaller purch
purchased components required, ased components required, such as nuts such as nuts and bolts.and bolts.
However, optimising an individual shed may not
However, optimising an individual shed may not be beneficial for the annual cost be beneficial for the annual cost ofof
production. Thus there maybe benefit in having some sheds less than optimum in order to production. Thus there maybe benefit in having some sheds less than optimum in order to minimise annual production costs, and distribute savings across a
minimise annual production costs, and distribute savings across a range of sheds.range of sheds.
For those fabricators that manufacture
For those fabricators that manufacturer c-sections the tables r c-sections the tables can be used to can be used to identify theidentify the most economic size of c-section to fabricate, and to also identify the potential
most economic size of c-section to fabricate, and to also identify the potential forfor alternative sizes of c-sec
alternative sizes of c-sectionstions, or alternative cold-formed , or alternative cold-formed sections such as hollow-flange-sections such as hollow-flange-beams. It should be noted that c-sections are largely supplied for
beams. It should be noted that c-sections are largely supplied for use as claddinguse as cladding supports, and not the fabrication of portal frames. In
supports, and not the fabrication of portal frames. In consequencconsequence, given historical salese, given historical sales data of the most common di
data of the most common dimensions of shed required, it may turn out to be advantageousmensions of shed required, it may turn out to be advantageous
depth. Thus: C125, C175, C225, C275, C325, and C375 maybe t
depth. Thus: C125, C175, C225, C275, C325, and C375 maybe the more economicalhe more economical sizes for fabrication of a range of sheds. For example
sizes for fabrication of a range of sheds. For example a C175 of appropriate a C175 of appropriate gauge wouldgauge would cover a range of designs currently covered by C100’s, C150’s and also encompass some cover a range of designs currently covered by C100’s, C150’s and also encompass some of those provided by C200’s. Adoption of
of those provided by C200’s. Adoption of the C175 would reduce setup times, and althe C175 would reduce setup times, and allowlow greater standardisation of components such as end plates and bolts. Alternatively the size greater standardisation of components such as end plates and bolts. Alternatively the size ranges could be maintained whilst the gauge and strength of materials are altered. Thus a ranges could be maintained whilst the gauge and strength of materials are altered. Thus a C150-30 maybe a more useful section for portal frames.
C150-30 maybe a more useful section for portal frames.
Designing Alternative C-Section Designing Alternative C-Section By pl
By plottiotting the actual sizes of sheds sold, on the ng the actual sizes of sheds sold, on the design charts, the variation in c-sectiondesign charts, the variation in c-section required can be determined. To minimise this variation the largest possible c-section required can be determined. To minimise this variation the largest possible c-section required for the range of
required for the range of sheds can be selected.sheds can be selected.
If it is known that 80% of the sheds sold fall within the scope of a given dimensional If it is known that 80% of the sheds sold fall within the scope of a given dimensional envelope, then a single
c-envelope, then a single c-section to cover tsection to cover the entire range maybe of he entire range maybe of economic benefit.economic benefit.
Suppose the charts require C100’s, C150’s and C200’s, for this
Suppose the charts require C100’s, C150’s and C200’s, for this range. Then this wouldrange. Then this would imply the need to
imply the need to use C200’s for the use C200’s for the entire range. entire range. But it is discovered But it is discovered that adoption of athat adoption of a C200 for the
C200 for the entire range makes entire range makes the the smaller sheds too expensive. Therefore require ansmaller sheds too expensive. Therefore require an alternative size of c-section.
alternative size of c-section.
To determine an alternative section, follow the procedure for determining the
To determine an alternative section, follow the procedure for determining the momentmoment capacity for actual dimens
capacity for actual dimensions; using the dimensional envelions; using the dimensional envelope of the range of sheds asope of the range of sheds as the actual
the actual dimensions.dimensions.
Once the moment capacity as been determined, the dimensions of an alternative c-section Once the moment capacity as been determined, the dimensions of an alternative c-section can be estimated.
can be estimated.
1)
1) Determine the yield strengDetermine the yield strength th of the mof the material intend aterial intend on usingon using 2)
2) Divide required moment Divide required moment capacity by capacity by yield strength to oyield strength to obtain required sectionbtain required section modulus.
modulus.
3)
3) Section Section Modulus Modulus ZZ__D x B x TD x B x T 4)
4) Experiment with dimensions Experiment with dimensions for D,B, and T for D,B, and T that fit within width range that fit within width range of availableof available sheet metal coil strips, or plate if intend
sheet metal coil strips, or plate if intend on folding channel section. Note fullon folding channel section. Note full dimensions of c-section also includes bend radii and lips.
dimensions of c-section also includes bend radii and lips.
5)
5) Have Have the chosen the chosen section-design fully section-design fully checked to AS460checked to AS4600.0.
Example 8) Example 8)
•
• Continuing on from Example 7)Continuing on from Example 7)
•
• ResistinResisting Moment Required g Moment Required = 24.9 kNm = 24.9 kNm {ne{needs C25024}eds C25024}
•
• Yield Strength of Material fy = 450 MPa Yield Strength of Material fy = 450 MPa (MN/m(MN/m22))
•
• Z = (24.9 x 10Z = (24.9 x 1033) / (450 x 10) / (450 x 1066) = 5.53 x 10) = 5.53 x 10-5-5mm33{note unit conversions}{note unit conversions}
•
• Z = 5.53 x 10Z = 5.53 x 10-5-5 [m[m33] x 10] x 1099 [mm[mm33 /m /m33]= 55.3 x 10]= 55.3 x 1033mmmm33
•
• Flange Area A = Z / D = BT = 55.3 x 10Flange Area A = Z / D = BT = 55.3 x 1033 / 175 = 316 mm / 175 = 316 mm
•
• T = A / B = 3T = A / B = 316 / 100 16 / 100 = 3.16 mm = 3.16 mm {adopt 4mm thick {adopt 4mm thick material, and material, and checkcheck assumed yield strength available at this thickness}
assumed yield strength available at this thickness}
•
• ZZ__ 175 x 100 x 4 = 70.0 x 10175 x 100 x 4 = 70.0 x 1033 mmmm
•
• Adopt: 175 x 100 x 4Adopt: 175 x 100 x 4
•
• Flange Area A = Z / D = BT = 55.3 x 10Flange Area A = Z / D = BT = 55.3 x 1033 / 225 = 246 mm / 225 = 246 mm
•
• T = A / B T = A / B = 246 / 100 = 2.46 mm {adopt 3mm thick ma= 246 / 100 = 2.46 mm {adopt 3mm thick material}terial}
•
• ZZ__225 x 100 x 3 = 225 x 100 x 3 = 67.5 x 1067.5 x 1033 mmmm
•
• Adopt: 225 x 100 x 3Adopt: 225 x 100 x 3 Compare
Compare C20024: Z
C20024: Z __ 203 x 76 x 2.4 = 37.0 x 10203 x 76 x 2.4 = 37.0 x 1033 mmmm33{cf. Zx = 56.0 x 10{cf. Zx = 56.0 x 1033mmmm33}}
C25024: Z
C25024: Z __ 254 x 76 x 2.4 = 46.3 x 10254 x 76 x 2.4 = 46.3 x 1033mmmm33{cf. Zx = 75.7 x 10{cf. Zx = 75.7 x 1033 mmmm33}}
Hence detailed de
Hence detailed design check would allow some sign check would allow some reduction in flange widtreduction in flange width and materialh and material thickness, and the provisi
thickness, and the provision of a stiffening on of a stiffening lip to the flange. Chelip to the flange. Checking the above ratios ofcking the above ratios of estimate to actual Z, gives the estimate as around 60% of actual.
estimate to actual Z, gives the estimate as around 60% of actual. Splitting this betweenSplitting this between flange widt
flange width and mh and mataterial thickness gives 77% reduction for erial thickness gives 77% reduction for each.each.
Therefore Adopt: The following C-section’s for
Therefore Adopt: The following C-section’s for further consideration:further consideration:
175 deep x 77 wide flange x 2.4
175 deep x 77 wide flange x 2.4 mm thickmm thick 225 deep x 77 wide flange x 1.9
225 deep x 77 wide flange x 1.9 mm thickmm thick
(C)2003 Metamorphs (C)2003 Metamorphs
Chart 1 Chart 1
Fully Fixed Doubly Pitched Portal Frame : TC3.0, 0.6m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0, 0.6m Bays, 10deg. Roof Pitch
Initial Estimate of Frame Member Size Based on
Initial Estimate of Frame Member Size Based on Maximum Design MomentMaximum Design Moment
0.000 Building Width [m]
Building Width [m]
E
Fully Fixed Doubly Pitched Portal Frame : TC3.0,0.9m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0,0.9m Bays, 10deg. Roof Pitch
Initial Estimate of Frame Member Size Based on
Initial Estimate of Frame Member Size Based on Maximum Design MomentMaximum Design Moment
1
(C)2003 Metamorphs (C)2003 Metamorphs
Chart 2 Chart 2
Fully Fixed Doubly Pitched Portal Frame : TC3.0,0.9m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0,0.9m Bays, 10deg. Roof Pitch
Initial Estimate of Frame Member Size Based on
Initial Estimate of Frame Member Size Based on Maximum Design MomentMaximum Design Moment
0
Building Width [m]
Building Width [m]
E
Fully Fixed Doubly Pitched Portal Frame : TC3.0,1.2m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0,1.2m Bays, 10deg. Roof Pitch
Initial Estimate of Frame Member Size Based on
Initial Estimate of Frame Member Size Based on Maximum Design MomentMaximum Design Moment
1
(C)2003 Metamorphs (C)2003 Metamorphs
Chart 3 Chart 3
Fully Fixed Doubly Pitched Portal Frame : TC3.0,1.2m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0,1.2m Bays, 10deg. Roof Pitch
Initial Estimate of Frame Member Size Based on
Initial Estimate of Frame Member Size Based on Maximum Design MomentMaximum Design Moment
0
Building Width [m]
Building Width [m]
E
Fully Fixed Doubly Pitched Portal Frame : TC3.0,1.5m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0,1.5m Bays, 10deg. Roof Pitch
Initial Estimate of Frame Member Size Based on
Initial Estimate of Frame Member Size Based on Maximum Design MomentMaximum Design Moment
1
(C)2003 Metamorphs (C)2003 Metamorphs
Chart 4 Chart 4
Fully Fixed Doubly Pitched Portal Frame : TC3.0,1.5m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0,1.5m Bays, 10deg. Roof Pitch
Initial Estimate of Frame Member Size Based on
Initial Estimate of Frame Member Size Based on Maximum Design MomentMaximum Design Moment
0
Building Width [m]
Building Width [m]
E
Fully Fixed Doubly Pitched Portal Frame : TC3.0,1.8m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0,1.8m Bays, 10deg. Roof Pitch
Initial Estimate of Frame Member Size Based on
Initial Estimate of Frame Member Size Based on Maximum Design MomentMaximum Design Moment
1
(C)Metamorphs (C)Metamorphs
Chart 5 Chart 5
Fully Fixed Doubly Pitched Portal Frame : TC3.0,1.8m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0,1.8m Bays, 10deg. Roof Pitch
Initial Estimate of Frame Member Size Based on
Initial Estimate of Frame Member Size Based on Maximum Design MomentMaximum Design Moment
0
Building Width [m]
Building Width [m]
E
Fully Fixed Doubly Pitched Portal Frame : TC3.0,2.1m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0,2.1m Bays, 10deg. Roof Pitch
Initial Estimate of Frame Member Size Based on
Initial Estimate of Frame Member Size Based on Maximum Design MomentMaximum Design Moment
1
(C)2003 Metamorphs (C)2003 Metamorphs
Chart 6 Chart 6
Fully Fixed Doubly Pitched Portal Frame : TC3.0,2.1m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0,2.1m Bays, 10deg. Roof Pitch
Initial Estimate of Frame Member Size Based on
Initial Estimate of Frame Member Size Based on Maximum Design MomentMaximum Design Moment
0
Building Width [m]
Building Width [m]
E
Fully Fixed Doubly Pitched Portal Frame : TC3.0,2.4m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0,2.4m Bays, 10deg. Roof Pitch
Initial Estimate of Frame Member Size Based on
Initial Estimate of Frame Member Size Based on Maximum Design MomentMaximum Design Moment
1
(C)2003 Metamorphs (C)2003 Metamorphs
Chart 7 Chart 7
Fully Fixed Doubly Pitched Portal Frame : TC3.0,2.4m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0,2.4m Bays, 10deg. Roof Pitch
Initial Estimate of Frame Member Size Based on
Initial Estimate of Frame Member Size Based on Maximum Design MomentMaximum Design Moment
0
Building Width [m]
Building Width [m]
E
Fully Fixed Doubly Pitched Portal Frame : TC3.0,2.7m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0,2.7m Bays, 10deg. Roof Pitch
Initial Estimate of Frame Member Size Based on
Initial Estimate of Frame Member Size Based on Maximum Design MomentMaximum Design Moment
1
(C)2003 Metamorphs (C)2003 Metamorphs
Chart 8 Chart 8
Fully Fixed Doubly Pitched Portal Frame : TC3.0,2.7m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0,2.7m Bays, 10deg. Roof Pitch
Initial Estimate of Frame Member Size Based on
Initial Estimate of Frame Member Size Based on Maximum Design MomentMaximum Design Moment
0
Building Width [m]
Building Width [m]
E
Fully Fixed Doubly Pitched Portal Frame : TC3, 3m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3, 3m Bays, 10deg. Roof Pitch Initial Estimate of Frame Member Size Based on
Initial Estimate of Frame Member Size Based on Maximum Design MomentMaximum Design Moment
1.000
(C)2003 Metamorphs (C)2003 Metamorphs
Chart 9 Chart 9
Fully Fixed Doubly Pitched Portal Frame : TC3, 3m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3, 3m Bays, 10deg. Roof Pitch Initial Estimate of Frame Member Size Based on
Initial Estimate of Frame Member Size Based on Maximum Design MomentMaximum Design Moment
0.000 Building width [m]
Building width [m]
E
Fully Fixed Doubly Pitched Portal Frame : TC3.0,3.5m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0,3.5m Bays, 10deg. Roof Pitch
Initial Estimate of Frame Member Size Based on
Initial Estimate of Frame Member Size Based on Maximum Design MomentMaximum Design Moment
1
(C)2003 Metamorphs (C)2003 Metamorphs
Chart 10 Chart 10
Fully Fixed Doubly Pitched Portal Frame : TC3.0,3.5m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0,3.5m Bays, 10deg. Roof Pitch
Initial Estimate of Frame Member Size Based on
Initial Estimate of Frame Member Size Based on Maximum Design MomentMaximum Design Moment
0
Building Width [m]
Building Width [m]
E
Fully Fixed Doubly Pitched Portal Frame : TC3.0,4.0m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0,4.0m Bays, 10deg. Roof Pitch
Initial Estimate of Frame Member Size Based on
Initial Estimate of Frame Member Size Based on Maximum Design MomentMaximum Design Moment
1
(C)2003 Metamorphs (C)2003 Metamorphs
Chart 11 Chart 11
Fully Fixed Doubly Pitched Portal Frame : TC3.0,4.0m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0,4.0m Bays, 10deg. Roof Pitch
Initial Estimate of Frame Member Size Based on
Initial Estimate of Frame Member Size Based on Maximum Design MomentMaximum Design Moment
0
Building Width [m]
Building Width [m]
E
Fully Fixed Doubly Pitched Portal Frame : TC3.0,4.5m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0,4.5m Bays, 10deg. Roof Pitch Initial Estimate of Frame Member Size Based on Maximum Bending Moment Initial Estimate of Frame Member Size Based on Maximum Bending Moment
1
(C)2003 Metamorphs (C)2003 Metamorphs
Chart 12 Chart 12
Fully Fixed Doubly Pitched Portal Frame : TC3.0,4.5m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0,4.5m Bays, 10deg. Roof Pitch Initial Estimate of Frame Member Size Based on Maximum Bending Moment Initial Estimate of Frame Member Size Based on Maximum Bending Moment
0
Building Width [m]
Building Width [m]
E
Fully Fixed Doubly Pitched Portal Frame : TC3.0, 5.0m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0, 5.0m Bays, 10deg. Roof Pitch Initial Estimate of Frame Member Size Based on Maximum Bending Moment Initial Estimate of Frame Member Size Based on Maximum Bending Moment
1
(C)2003 Metamorphs (C)2003 Metamorphs
Chart 13 Chart 13
Fully Fixed Doubly Pitched Portal Frame : TC3.0, 5.0m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0, 5.0m Bays, 10deg. Roof Pitch Initial Estimate of Frame Member Size Based on Maximum Bending Moment Initial Estimate of Frame Member Size Based on Maximum Bending Moment
0
Building Width [m]
Building Width [m]
E
Fully Fixed Doubly Pitched Portal Frame : TC3.0,5.5m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0,5.5m Bays, 10deg. Roof Pitch
Initial Estimate of Frame Member Size Based on
Initial Estimate of Frame Member Size Based on Maximum Design MomentMaximum Design Moment
1
(C)2003 Metamorphs (C)2003 Metamorphs
Chart 14 Chart 14
Fully Fixed Doubly Pitched Portal Frame : TC3.0,5.5m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0,5.5m Bays, 10deg. Roof Pitch
Initial Estimate of Frame Member Size Based on
Initial Estimate of Frame Member Size Based on Maximum Design MomentMaximum Design Moment
0
Building Width [m]
Building Width [m]
E
Fully Fixed Doubly Pitched Portal Frame : TC3.0, 6.0m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0, 6.0m Bays, 10deg. Roof Pitch
Initial Estimate of Frame Member Size Based on
Initial Estimate of Frame Member Size Based on Maximum Design MomentMaximum Design Moment
1
(C)2003 Metamorphs (C)2003 Metamorphs
Chart 15 Chart 15
Fully Fixed Doubly Pitched Portal Frame : TC3.0, 6.0m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0, 6.0m Bays, 10deg. Roof Pitch
Initial Estimate of Frame Member Size Based on
Initial Estimate of Frame Member Size Based on Maximum Design MomentMaximum Design Moment
0
Building Width [m]
Building Width [m]
E
Fully Fixed Doubly Pitched Portal Frame : TC3.0,6.5m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0,6.5m Bays, 10deg. Roof Pitch
Initial Estimate of Frame Member Size Based on
Initial Estimate of Frame Member Size Based on Maximum Design MomentMaximum Design Moment
1
(C)2003 Metamorphs (C)2003 Metamorphs
Chart 16 Chart 16
Fully Fixed Doubly Pitched Portal Frame : TC3.0,6.5m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0,6.5m Bays, 10deg. Roof Pitch
Initial Estimate of Frame Member Size Based on
Initial Estimate of Frame Member Size Based on Maximum Design MomentMaximum Design Moment
0
Building Width [m]
Building Width [m]
E
Fully Fixed Doubly Pitched Portal Frame : TC3.0,7.0m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0,7.0m Bays, 10deg. Roof Pitch
Initial Estimate of Frame Member Size Based on
Initial Estimate of Frame Member Size Based on Maximum Design MomentMaximum Design Moment
1
(C)2003 Metamorphs (C)2003 Metamorphs
Chart 17 Chart 17
Fully Fixed Doubly Pitched Portal Frame : TC3.0,7.0m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0,7.0m Bays, 10deg. Roof Pitch
Initial Estimate of Frame Member Size Based on
Initial Estimate of Frame Member Size Based on Maximum Design MomentMaximum Design Moment
0
Building Width [m]
Building Width [m]
E
Fully Fixed Doubly Pitched Portal Frame : TC3.0,7.5m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0,7.5m Bays, 10deg. Roof Pitch
Initial Estimate of Frame Member Size Based on
Initial Estimate of Frame Member Size Based on Maximum Design MomentMaximum Design Moment
1
(C)2003 Metamorphs (C)2003 Metamorphs
Chart 18 Chart 18
Fully Fixed Doubly Pitched Portal Frame : TC3.0,7.5m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0,7.5m Bays, 10deg. Roof Pitch
Fully Fixed Doubly Pitched Portal Frame : TC3.0,7.5m Bays, 10deg. Roof Pitch Fully Fixed Doubly Pitched Portal Frame : TC3.0,7.5m Bays, 10deg. Roof Pitch