design+of+purlins+revised 2005 (1)

HARD COPY PURLINS DESIGN

DESIGN OF PURLINS Date: 04/07/23

NAME OF BUILDING : PROPOSED 2 STOREY HOUSING UNITPURLIN DESIGNATION : P – 1

SPECIFICATIONS:

Type of section : ChannelPlacing of sag rods : noneSlope of roofing : 0.2Spacing of truss : 3 mSpacing of purlins : 0.6 m

loadings:

Weight of roofing : 77 PaOther vertical loads : 800 PaWind load (normal projection) : 704 PaYield strength of steel : 230 MpaModulus of Elasticity : 200 Gpa

suggested section:Designation H B TW TF A WLC 65x30x15x1.2 65 30 1.2 1.2 1.77 1.39

XC YC IX IY SX SY ASEP BSTRESS0 0 11.4 2.5 3.51 1.35 1 123.6

RESULT:

MomentMn= 595.52 N-m Mt= 119.10 N-m

flexural stressfbx= 169.66 Mpa Fbx= 151.80 Mpafby= 176.45 Mpa Fby= 138.00 Mpa

interaction equation deflectiony allow L / 180

case# 2 16.6667 mm.75(DL+LLgoverns

yn = 33.0198 mm < 16.6667(fbx / Fbx )+ (fby / Fby) < = 1.0 yt = 22.3321 mm < 16.6667

2.40 < = 1.0 FAILS

HARD COPY PURLINS DESIGN

BSTRESS

FAILS FAILS

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PURLINS DESIGN LINKED TO TRUSS LOAD COMPUTATION (sheet 2)DATA INPUTDESIGN OF PURLINS ###

NAME OF BUILDING : PROPOSED 2 STOREY HOUSING UNITPURLIN DESIGNATION : P – 1

SPECIFICATIONS:

Type of section : Channel NONE = NONEPlacing of sag rods : none 1 = MIDSPANSlope of roofing : 0.20 2 = THIRD POINTSSpacing of truss : 3.00 mSpacing of purlins : 0.60 m

loadings:

Weight of roofing : ### PaOther vertical loads : ### PaWind load (normal projec: ### PaYeild strength of steel : ### MpaModulus of Elasticity : ### Gpa

suggested section:Designation H B TW TF A W

LC 65x30x15x1.2 65.00 30.00 1.20 1.20 1.77 1.39

XC YC IX IY SX SY ASEP BSTRESS0.00 0.00 11.40 2.50 3.51 1.35 1 ###

RESULT:

MomentMn= 596 N-m Mt= 119 N-m

flexural stressfbx= 169.66 Mpa Fbx= ### Mpafby= 176.45 Mpa Fby= ### Mpa

interaction equation deflectiony allow / 180

case# 2 ### mm.75(DL+Lgoverns

yn = ### mm < ### FAILS (fbx / Fbx )+ (fby / Fby) < = 1 yt = ### mm < ### FAILS

2.396 < = 1.0 FAILS

OTHER DATA INPUT

a 6.0 length of front side m

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b 6.0 length of letf side mc 6.0 length of right side m *mid sag rods Mt=Wt*L2/32d 6.0 length of right side m *third point sag ro Mt=Wt*L2/90e 0.6 spacing between purlins mf 3.0 spacing between truss mg 1.2 height of truss mh 10.5 length of truss mI 0.7 length of eaves mj 77.00 weight of roofing kPak weight of wood cuml 800.00 LL < or =30sqm Pa

m 704.00 P Pao 0.200 slope

0.197 arctan11.3 angle

Fy 230 yeild strength of steel MpaE 200.00 modulus of elasticity Gpa

trial section c purlins

DESIGNATION H B TW TF A W XC YC IX IY

LC 65x30x 65 30 1.2 1.2 1.77 1.39 11.40 2.50

computation:

design loads:1.DEAD LOADS

wt of roofing DL 77.00 kPa

2.LIVE LOADSLL ### kPa

3.WIND LOADSdesign winds:

WL 704.00 kPa

normal loads: WnDLn = 58.67 N/mLLn = 470.68 N/mWLn = 422.40 N/m

tangential loads:DLt = 11.73 N/mLLn = 94.14 N/m

Load case # 1 D+LWn = 529.35 N/mWt = 105.87 N/m

height of roof< 6 M

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Load casse # 2 .75(D+L+W)Wn = 713.81 N/mWt = 79.40 N/m

Moments:2

Load case # 1 Mn=Wn(L)/8Mn= 595.5 N-m 148.9 52.9

Mn=Wt(L)2/8 Mt=Wt*L2/Mt=Wt*L2/90Mt= 119.1 N-m 29.8 10.6

Load case # 2Mn= 803.04

Mt= 89.33

Flexural strength:

Load case # 1

fbx = 169.66 MPa

fby = 176.45 MPa

Load case # 2

fbx = 228.79 MPa

fby = 132.34 MPa

check if compact s Fy= 230

B/2tf = 12.50

170/(Fy)1/2 10.795

B/2tf < 170/sqrt(Fy) compact!!!Fbx=0.66F 151.8 MPaFby=0.60F 138 MPa

check interaction equation

Load case # 12.396 < 1.0 FAILS

Load case # 22.47 < 1.0 FAILS

load case #1 critical

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check deflection:54.6

allow. Deflection = L/180 16.67 mm

Yn=5WnL4/384EIx 33.02 mm < 16.67

Yt=5WtL4/384EIy 22.33 mm < 16.67

PURLINS DESIGN LINKED TO TRUSS LOAD COMPUTATION (sheet 2)DATA INPUTDESIGN OF PURLINS ###

NAME OF BUILDING : KITAZATOPURLIN DESIGNATION : PURLINS 1

SPECIFICATIONS:

Type of section : LC-ShapePlacing of sag rods : @MIDSPANSlope of roofing : 0.20Spacing of truss : 3.00 mSpacing of purlins : 0.60 m

loadings:



LC 65x30x15x1.2 65.00 30.00 1.20 1.20 1.77 1.39


RESULT:

MomentMn= 149 N-m Mt= #N/A N-m




yn = ### mm < ### FAILS

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(fbx / Fbx )+ (fby / Fby) < = 1 yt = ### mm < ### FAILS0.700 < = 1.0OK !!!

OTHER DATA INPUT

a 6.0 length of front side mb 6.0 length of letf side mc 6.0 length of right side m *mid sag rods Mt=Wt*L2/32d 6.0 length of right side m *third point sag ro Mt=Wt*L2/90e 0.6 spacing between purlins mf 3.0 spacing between truss mg 1.2 height of truss mh 6.0 length of truss mI 0.7 length of eaves mj 77.00 weight of roofing kPak weight of wood cuml 800.00 LL < or =30sqm Pa

m 704.00 P Pao 0.200 slope





LC 65x30x 65 30 1.2 1.2 1.77 1.39 11.40 2.50

computation:





WL 704.00 kPa

normal loads: WnDLn = 58.67 N/m

height of roof< 6 M

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LLn = 470.68 N/mWLn = 422.40 N/m




Moments:2

Load case # 1 Mn=Wn(L)/32Mn= 148.9 N-m

Mt=Wt*L2/32Mt= 29.8 N-m


Mt= 22.33

Flexural strength:

Load case # 1

fbx = 42.42 MPa

fby = 44.11 MPa

Load case # 2

fbx = 57.20 MPa

fby = 33.08 MPa


B/2tf = 12.50

170/(Fy)1/2 10.795

B/2tf < 170/sqrt(Fy) compact!!!

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Fbx=0.66F 151.8 MPaFby=0.60F 138 MPa


Load case # 10.599 < 1.0 OK !!!

Load case # 20.62 < 1.0 OK !!!




Yn=5WnL4/384EIx 33.02 mm < 16.67

Yt=5WtL4/384EIy 22.33 mm < 16.67

PURLINS DESIGN LINKED TO TRUSS LOAD COMPUTATION (sheet 2)DATA INPUTDESIGN OF PURLINS WITH SAG ROD @ THIRD POINT ###

NAME OF BUILDING : KITAZATOPURLIN DESIGNATION : PURLINS 1

SPECIFICATIONS:

Type of section : LC-ShapePlacing of sag rods : @ THIRD POINTSSlope of roofing : 0.20Spacing of truss : 3.00 mSpacing of purlins : 0.60 m

loadings:



LC 65x30x15x1.2 65.00 30.00 1.20 1.20 1.77 1.39


RESULT:

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MomentMn= 53 N-m Mt= 11 N-m




yn = ### mm < ### FAILS (fbx / Fbx )+ (fby / Fby) < = 1 yt = ### mm < ### FAILS

0.249 < = 1.0OK !!!

OTHER DATA INPUT

a 6.0 length of front side mb 6.0 length of letf side mc 6.0 length of right side m *mid sag rods Mt=Wt*L2/32d 6.0 length of right side m *third point sag ro Mt=Wt*L2/90e 0.6 spacing between purlins mf 3.0 spacing between truss mg 1.2 height of truss mh 6.0 length of truss mI 0.7 length of eaves mj 77.00 weight of roofing kPak weight of wood cuml 800.00 LL < or =30sqm Pa

m 704.00 P Pao 0.200 slope





LC 65x30x 65 30 1.2 1.2 1.77 1.39 11.40 2.50

computation:



height of roof< 6 M

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WL 704.00 kPa

normal loads: WnDLn = 58.67 N/mLLn = 470.68 N/mWLn = 422.40 N/m




Moments:2

Load case # 1 Mt=Wt*L2/90Mn= 52.9 N-m

Mt=Wt*L2/90Mt= 10.6 N-m


Mt= 7.94

Flexural strength:

Load case # 1

fbx = 15.08 MPa

fby = 15.68 MPa

Load case # 2

fbx = 20.34 MPa

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fby = 11.76 MPa


B/2tf = 12.50

170/(Fy)1/2 10.795

B/2tf < 170/sqrt(Fy) compact!!!Fbx=0.66F 151.8 MPaFby=0.60F 138 MPa


Load case # 10.213 < 1.0 OK !!!

Load case # 20.22 < 1.0 OK !!!




Yn=5WnL4/384EIx 33.02 mm < 16.67

Yt=5WtL4/384EIy 22.33 mm < 16.67

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NONE = NONE

2 = THIRD POINTS

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SX SY ASEP BSTRESS

3.51 1.35 1 123.60

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TRUSS LOADING COMPUTATION LINK FROM PURLINS DESIGN

ENTER DATA: ON COLORED CELL

design wind P 20.00 psf 958 Pa

Ht of roof 2.20 m Pn = P(2sin0)/

length of truss 5.00 m WL = 881.19

ATAN 0.72

angle 41.35 degrees WL = 2789

hyp 3.33 m DLtop = wt roofing+wt purlins+wt truss

sin 0 0.66 #N/A

2sin0 1.32 DLbot = wt ceiling+wt bracing

sin20 0.44 718.24

cos 0 0.75 LL = vertical

#N/A

spacing of purlins 0.30 m

spacing of truss 1.50 m

2.00 m

2.11 m P top joi = #N/A

3.00 sqm Pbot join = 0.72

3.17 sqm

assumed truss wt =.5+.07hor surface lb/sqft

82.855 hor surface Pa

ceiling load 5 psf ### Pa

Type of section : LC-Shape

Slope of roofing : 0.88

Spacing of purlins : 0.30 m

loadings:

Weight of roofing : ### Pa

bottom joint panel length max

top joint panel length max

bottom tributary area

top tributary area

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Yeild strength of steel : ### Mpa

Modulus of Elasticity : ### Gpa

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TRUSS LOADING COMPUTATION LINK FROM PURLINS DESIGN

Pn = P(2sin0)/ Pa

Pa

N

wt roofing+wt purlins+wt truss

wt ceiling+wt bracing

vertical

KN

KN

tables

Wind load:

ND PRESSURE,P=Ce x Cq x qs x I

Wind stagnation pressure, qsComined ht., exposure & gust coefficient, Ce

Pressure coefficient, CqImportance factor,I

tables

TABLE 2.1C - Minimum Roof Live LoadsTributary loaded area for any structural member

Roof slope 0 to 20 sqm (Pa)21 to 20 sqm (Pa)Over 60 sqm (Pa)Flat or rise less than 1 vertical to 3 horizontal; arch or dome with r 1000 800 6000rise 1 vertical per 3 horizontal to less than 1 horizontal; arch or do 800 700 600rise 1 vertical 1 horizontal; arch or dome with rise 3/8 of span great 600 600 600Awning except cloth covered 250 250 250Green houses, lathhouses and agricultural building 500 500 500

TABLE 2 – J – Combined height, exposure and gust factor coefficient (Ce)

Height above average level of adjoining ground (m) Exposure D Exposure C Exposure B

0-5.00 1.41 1.08 0.636.00 1.45 1.13 0.677.00 1.48 1.17 0.708.00 1.51 1.20 0.739.00 1.54 1.23 0.76

10.00 1.56 1.25 0.7815.00 1.65 1.35 0.8920.00 1.75 1.46 0.9830.00 1.87 1.60 1.1240.00 1.96 1.70 1.2360.00 2.09 1.86 1.4180.00 2.17 2.00 1.55

100.00 2.26 2.09 1.68

*Values for intermediate height above 5 meters may be interpolated

Table 3 – WIND SPEEDS (KPH)

Zone I II IIIBasic wind speed 200 175 150'qs, wind stagnation pressure 2000 1500 1000

Table 4 – Importance factor I

Occupancy category Description II Essential 1.15II Hazardous 1.15III Special occupancy 1.15IV Standard occupancy 1.00V Miscellaneous 0.87

tables

Over 60 sqm (Pa)

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DESIG H B TW TF A W XC YC IX IY SX SYW 175 x 40.2 175 175 7.5 11.0 51.21 40.20 0.00 0.00 ### 984.00 330.00 112.00W 150 x 31.5 150 150 7.0 10.0 40.14 31.50 0.00 0.00 ### 563.00 219.00 75.10W 150 x 21.1 150 100 6.0 9.0 26.84 21.10 0.00 0.00 ### 151.00 138.00 30.10W 150 x 14.0 150 75 5.0 7.0 17.85 14.00 0.00 0.00 666.00 49.50 88.80 13.20W 125 x 23.8 125 125 6.5 9.0 30.31 23.80 0.00 0.00 847.00 293.00 136.00 47.00W 125 x 13.2 125 60 6.0 8.0 16.84 13.20 0.00 0.00 413.00 29.20 66.10 9.70W 100 x 17.2 100 100 6.0 8.0 21.90 17.20 0.00 0.00 383.00 134.00 76.50 26.70W 100 x 9.3 100 50 5.0 7.0 11.85 9.30 0.00 0.00 187.00 14.80 37.50 5.90I 200 x 50.4 200 150 9.0 16.0 64.16 50.40 0.00 0.00 ### 753.00 446.00 10.00I 200 x 26.0 200 100 7.0 10.0 33.06 26.00 0.00 0.00 ### 138.00 217.00 27.70I 180 x 23.6 180 100 6.0 10.0 30.06 23.60 0.00 0.00 ### 138.00 186.00 27.50I 150 x 36.2 150 125 8.5 14.0 46.15 36.20 0.00 0.00 ### 385.00 235.00 61.60I 150 x 17.1 150 75 5.5 9.5 21.83 17.10 0.00 0.00 819.00 57.50 109.00 15.30I 100 x 16.1 125 75 5.5 9.5 20.45 16.10 0.00 0.00 538.00 57.50 86.00 15.30I 100 x 12.9 100 75 5.0 8.0 16.43 12.90 0.00 0.00 281.00 47.30 56.20 12.60C 180 x 21.4 180 75 7.0 10.5 27.20 21.40 2.13 0.00 ### 131.00 153.00 24.30C 150 x 24.0 150 75 9.0 12.5 30.59 24.00 2.31 0.00 ### 147.00 140.00 28.30C 150 x 18.6 150 75 6.5 10.0 23.71 18.60 2.28 0.00 861.00 117.00 115.00 22.40C 125 x 13.4 125 65 6.0 8.0 17.11 13.40 1.90 0.00 424.00 61.80 67.80 13.40C 100 x 9.4 100 50 5.0 7.5 11.92 9.40 1.54 0.00 188.00 26.00 37.60 7.50C 75 x 6.9 75 40 5.0 7.0 8.82 6.90 1.28 0.00 75.30 12.20 20.10 4.50LZ 255x90x25x4 255 90 4.7 4.7 21.34 16.75 ### 328.10 161.25 37.43LZ 255x90x25x4 255 90 4.5 4.5 20.49 16.09 ### 317.60 155.27 36.20LZ 255x90x25x4 255 90 4.3 4.3 19.64 15.42 ### 306.80 149.21 34.93LZ 255x90x25x4 255 90 4.0 4.0 18.35 14.40 ### 290.10 139.97 32.97LZ 255x90x25x3 255 90 3.2 3.2 14.85 11.65 ### 242.20 114.50 27.40LZ 255x90x25x2 255 90 2.9 2.9 13.51 10.61 ### 223.00 104.63 25.19LZ 220x75x25x4 220 75 4.7 4.7 18.29 14.36 ### 199.60 117.06 27.47LZ 220x75x25x4 220 75 4.5 4.5 17.57 13.79 ### 193.50 112.83 26.60LZ 220x75x25x4 220 75 4.3 4.3 16.84 13.22 ### 187.30 108.53 25.71LZ 220x75x25x4 220 75 4.0 4.0 15.75 12.36 ### 177.50 101.96 24.32LZ 220x75x25x3 220 75 3.2 3.2 12.77 10.02 920.90 149.20 83.72 20.33LZ 220x75x25x2 220 75 2.9 2.9 11.63 9.13 842.70 137.70 76.61 18.73LZ 220x75x25x2 220 75 2.6 2.6 10.48 8.22 762.80 125.70 69.34 17.06LZ 220x75x25x2 220 75 2.3 2.3 9.31 7.31 681.20 113.20 61.93 15.33LZ 200x75x25x4 200 75 4.0 4.0 14.95 11.73 894.50 177.50 89.46 24.32LZ 200x75x25x3 200 75 3.2 3.2 12.13 9.52 735.50 149.20 73.55 20.33LZ 200x75x20x4 200 75 4.0 4.0 14.55 11.42 870.50 157.40 87.05 21.56LZ 200x75x20x3 200 75 3.2 3.2 11.81 9.27 716.20 132.70 71.62 18.08LZ 200x70x20x4 200 70 4.7 4.7 16.41 12.88 952.80 145.40 95.28 21.50LZ 200x70x20x4 200 70 4.5 4.5 15.77 12.38 919.00 141.30 91.91 20.85LZ 200x70x20x4 200 70 4.3 4.3 15.12 11.87 884.70 136.90 88.47 20.18LZ 200x70x20x4 200 70 4.0 4.0 14.15 11.11 832.10 130.10 83.21 19.14LZ 200x70x20x3 200 70 3.2 3.2 11.49 9.02 685.30 110.10 68.53 16.10LZ 200x70x20x2 200 70 2.9 2.9 10.47 8.22 627.70 101.90 62.77 14.85LZ 200x70x20x2 200 70 2.6 2.6 9.44 7.41 568.80 93.20 56.88 13.57LZ 200x70x20x2 200 70 2.3 2.3 8.39 6.59 508.50 84.10 50.85 12.22LZ 200x70x20x2 200 70 2.0 2.0 7.34 5.76 446.90 47.60 44.69 10.82LZ 200x70x20x1 200 70 1.8 1.8 6.63 5.20 405.00 68.10 40.50 9.85LZ 200x70x20x1 200 70 1.6 1.6 5.91 4.64 362.50 61.30 36.25 8.86LZ 185x50x20x3 185 50 3.2 3.2 9.73 7.64 464.50 44.70 50.21 9.23LZ 185x50x20x2 185 50 2.3 2.3 7.13 5.60 346.90 34.80 37.50 7.12

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LZ 185x50x20x2 185 50 2.0 2.0 6.24 4.90 305.50 31.00 33.03 6.34LZ 175x50x20x4 175 50 4.3 4.3 12.33 9.68 519.00 54.20 59.32 11.33LZ 175x50x20x4 175 50 4.0 4.0 11.55 9.07 489.50 51.90 55.94 10.81LZ 175x50x20x3 175 50 3.2 3.2 9.41 7.38 406.00 44.70 46.40 9.23LZ 175x50x20x2 175 50 2.9 2.9 8.58 6.74 372.90 41.60 42.61 8.57LZ 175x50x20x2 175 50 2.6 2.6 7.75 6.08 338.70 38.30 38.71 7.86LZ 175x50x20x2 175 50 2.3 2.3 6.90 5.41 303.60 34.80 34.70 7.12LZ 175x50x20x2 175 50 2.0 2.0 6.04 4.74 267.40 31.00 30.56 6.34LZ 175x50x20x1 175 50 1.8 1.8 5.46 4.28 242.80 28.40 27.75 5.79LZ 175x50x20x1 175 50 1.6 1.6 4.87 3.82 217.60 25.70 24.87 5.22LZ 150x75x25x4 150 75 4.0 4.0 12.95 10.16 454.30 177.50 60.57 24.32LZ 150x75x25x3 150 75 3.2 3.2 10.53 8.26 375.10 149.20 50.01 20.33LZ 150x75x20x4 150 75 4.0 4.0 12.55 9.85 443.20 157.40 59.10 21.56LZ 150x75x20x3 150 75 3.2 3.2 10.21 8.01 366.30 132.70 48.84 18.08LZ 150x65x20x4 150 65 4.0 4.0 11.75 9.22 400.60 106.20 53.41 16.86LZ 150x65x20x3 150 65 3.2 3.2 9.57 7.51 331.80 90.20 44.24 14.22LZ 150x65x20x2 150 65 2.3 2.3 7.01 5.50 247.70 69.20 33.03 10.83LZ 150x50x20x3 150 50 3.2 3.2 8.61 6.76 280.10 44.70 37.34 9.23LZ 150x50x20x2 150 50 2.3 2.3 6.32 4.96 210.10 34.80 28.02 7.12LZ 150x50x18x4 150 50 4.3 4.3 11.08 8.70 351.10 50.60 46.82 10.58LZ 150x50x18x4 150 50 4.0 4.0 10.39 8.15 331.60 48.50 44.22 10.10LZ 150x50x18x3 150 50 3.2 3.2 8.48 6.66 276.10 41.90 36.81 8.65LZ 150x50x18x2 150 50 2.9 2.9 7.74 6.08 253.90 39.00 33.85 8.04LZ 150x50x18x2 150 50 2.6 2.6 6.99 5.49 230.90 36.00 30.79 7.38LZ 150x50x18x2 150 50 2.3 2.3 6.23 4.89 207.20 32.70 27.63 6.69LZ 150x50x18x2 150 50 2.0 2.0 5.46 4.28 182.80 29.20 24.37 5.96LZ 150x50x18x1 150 50 1.8 1.8 4.94 3.87 166.10 26.80 22.14 5.45LZ 150x50x18x1 150 50 1.6 1.6 4.41 3.46 149.00 24.20 19.87 4.92LZ 125x50x20x4 125 50 4.0 4.0 9.55 7.50 216.70 51.90 34.68 10.81LZ 125x50x20x3 125 50 3.2 3.2 7.81 6.13 181.00 44.70 28.97 9.23LZ 125x50x20x2 125 50 2.3 2.3 5.78 4.51 136.40 34.80 21.82 7.12LZ 125x50x15x4 125 50 4.3 4.3 9.75 7.65 220.50 45.20 35.28 9.46LZ 125x50x15x4 125 50 4.0 4.0 9.15 7.18 208.60 43.40 33.38 9.05LZ 125x50x15x3 125 50 3.2 3.2 7.49 5.88 174.50 37.70 27.93 7.78LZ 125x50x15x2 125 50 2.9 2.9 6.84 5.37 160.80 35.20 25.73 7.24LZ 125x50x15x2 125 50 2.6 2.6 6.19 4.86 146.50 32.50 23.45 6.66LZ 125x50x15x2 125 50 2.3 2.3 5.52 4.33 131.70 29.50 21.08 6.05LZ 125x50x15x2 125 50 2.0 2.0 4.84 3.80 116.40 26.40 18.62 5.40LZ 125x50x15x1 125 50 1.8 1.8 4.38 3.44 105.90 24.20 16.94 4.94LZ 125x50x15x1 125 50 1.6 1.6 3.91 3.07 95.10 22.00 15.22 4.46LZ 125x50x15x1 125 50 1.4 1.4 3.44 2.70 84.10 19.60 13.45 3.97LZ 125x50x15x1 125 50 1.2 1.2 2.97 2.33 72.80 17.10 11.65 3.46LZ 120x60x20x3 120 60 3.2 3.2 8.29 6.51 186.10 72.70 31.01 12.45LZ 120x60x20x2 120 60 2.3 2.3 6.09 4.78 139.80 56.00 23.30 9.52LZ 120x40x20x3 120 40 3.2 3.2 7.01 5.50 142.40 24.70 23.73 6.44LZ 100x50x15x3 100 50 3.2 3.2 6.69 5.25 103.00 37.70 20.60 7.78LZ 100x50x15x2 100 50 2.9 2.9 6.12 4.80 95.10 35.20 19.02 7.24LZ 100x50x15x2 100 50 2.6 2.6 5.54 4.35 86.80 32.50 17.37 6.66LZ 100x50x15x2 100 50 2.3 2.3 4.94 3.88 78.20 29.50 15.64 6.05LZ 100x50x15x2 100 50 2.0 2.0 4.34 3.40 69.20 26.40 13.85 5.40LZ 100x50x15x1 100 50 1.8 1.8 3.93 3.08 63.00 24.20 12.61 4.94LZ 100x50x15x1 100 50 1.6 1.6 3.51 2.76 56.70 22.00 11.34 4.46LZ 100x50x15x1 100 50 1.4 1.4 3.09 2.43 50.20 19.60 10.04 3.97

sda3

LZ 100x50x15x1 100 50 1.2 1.2 2.67 2.09 43.50 17.10 8.71 3.46LZ 90x45x15x3 90 45 3.2 3.2 6.05 4.75 74.40 28.20 16.52 6.49LZ 90x45x15x2 90 45 2.9 2.9 5.54 4.35 68.80 26.40 15.29 6.06LZ 90x45x15x2 90 45 2.6 2.6 5.02 3.94 62.90 24.40 13.98 5.59LZ 90x45x15x2 90 45 2.3 2.3 4.48 3.52 56.80 22.30 12.62 5.08LZ 90x45x15x2 90 45 2.0 2.0 3.94 3.09 50.40 20.00 11.19 4.54LZ 90x45x15x1 90 45 1.8 1.8 3.57 2.80 45.90 18.40 10.21 4.16LZ 90x45x15x1 90 45 1.6 1.6 3.19 2.51 41.40 16.60 9.19 3.77LZ 90x45x15x1 90 45 1.4 1.4 2.81 2.21 36.70 14.90 8.15 3.35LZ 90x45x15x1 90 45 1.2 1.2 2.43 1.90 31.80 13.00 7.07 2.93LZ 75x38x15x2 75 38 2.6 2.6 4.26 3.35 36.20 15.50 9.66 4.22LZ 75x38x15x2 75 38 2.3 2.3 3.82 3.00 32.80 14.20 8.75 3.85LZ 75x38x15x2 75 38 2.0 2.0 3.36 2.64 29.20 12.80 7.79 3.46LZ 75x38x15x1 75 38 1.8 1.8 3.05 2.39 26.70 11.80 7.12 3.18LZ 75x38x15x1 75 38 1.6 1.6 2.73 2.14 24.10 10.70 6.43 2.88LZ 75x38x15x1 75 38 1.4 1.4 2.41 1.89 21.40 9.60 5.71 2.57LZ 75x38x15x1 75 38 1.2 1.2 2.08 1.63 18.60 8.40 4.97 2.25LZ 65x30x15x2 65 30 2.6 2.6 3.59 2.81 21.70 8.20 6.68 2.87LZ 65x30x15x2 65 30 2.3 2.3 3.22 2.53 19.80 7.60 6.08 2.64LZ 65x30x15x2 65 30 2.0 2.0 2.84 2.23 17.70 6.90 5.44 2.38LZ 65x30x15x1 65 30 1.8 1.8 2.58 2.02 16.20 6.40 4.99 2.19LZ 65x30x15x1 65 30 1.6 1.6 2.31 1.82 14.70 5.80 4.52 2.00LZ 65x30x15x1 65 30 1.4 1.4 2.04 1.60 13.10 5.20 4.02 1.79LZ 65x30x15x1 65 30 1.2 1.2 1.77 1.39 11.40 4.60 3.51 1.57LC 255x90x25x 255 90 4.7 4.7 21.34 16.75 ### 211.30 161.25 32.89LC 255x90x25x 255 90 4.5 4.5 20.49 16.09 ### 204.40 155.27 31.81LC 255x90x25x 255 90 4.3 4.3 19.64 15.42 ### 197.30 149.21 30.72LC 255x90x25x 255 90 4.0 4.0 18.35 14.40 ### 186.30 139.97 29.02LC 255x90x25x 255 90 3.2 3.2 14.85 11.65 ### 155.10 114.50 24.17LC 255x90x25x 255 90 2.9 2.9 13.51 10.61 ### 142.60 104.63 22.23LC 220x75x25x 220 75 4.7 4.7 18.29 14.36 ### 127.90 117.06 24.20LC 220x75x25x 220 75 4.5 4.5 17.57 13.79 ### 123.90 112.83 23.45LC 220x75x25x 220 75 4.3 4.3 16.84 13.22 ### 119.80 108.53 22.68LC 220x75x25x 220 75 4.0 4.0 15.75 12.36 ### 113.40 101.96 21.47LC 220x75x25x 220 75 3.2 3.2 12.77 10.02 920.90 95.00 83.72 18.00LC 220x75x25x 220 75 2.9 2.9 11.63 9.13 842.70 87.60 76.61 16.59LC 220x75x25x 220 75 2.6 2.6 10.48 8.22 762.80 79.90 69.34 15.13LC 220x75x25x 220 75 2.3 2.3 9.31 7.31 681.20 71.80 61.93 13.61LC 200x75x25x 200 75 4.0 4.0 14.95 11.73 894.50 110.00 89.46 21.26LC 200x75x25x 200 75 3.2 3.2 12.13 9.52 735.50 92.20 73.55 17.82LC 200x75x20x 200 75 4.0 4.0 14.55 11.42 870.50 99.80 87.05 18.80LC 200x75x20x 200 75 3.2 3.2 11.81 9.27 716.20 83.90 71.62 15.81LC 200x70x20x 200 70 4.7 4.7 16.41 12.88 952.80 94.10 95.28 18.84LC 200x70x20x 200 70 4.5 4.5 15.77 12.38 919.00 91.30 91.91 18.28LC 200x70x20x 200 70 4.3 4.3 15.12 11.87 884.70 88.50 88.47 17.71LC 200x70x20x 200 70 4.0 4.0 14.15 11.11 832.10 83.90 83.21 16.81LC 200x70x20x 200 70 3.2 3.2 11.49 9.02 685.30 70.70 68.53 14.18LC 200x70x20x 200 70 2.9 2.9 10.47 8.22 627.70 65.40 62.77 13.10LC 200x70x20x 200 70 2.6 2.6 9.44 7.41 568.80 59.70 56.88 11.98LC 200x70x20x 200 70 2.3 2.3 8.39 6.59 508.50 53.80 50.85 10.80LC 200x70x20x 200 70 2.0 2.0 7.34 5.76 446.90 47.70 44.69 9.57LC 200x70x20x 200 70 1.8 1.8 6.63 5.20 405.00 43.40 40.50 8.72LC 200x70x20x 200 70 1.6 1.6 5.91 4.64 362.50 39.10 36.25 7.85

sda3

LC 185x50x20x 185 50 3.2 3.2 9.73 7.64 464.50 30.10 50.21 8.33LC 185x50x20x 185 50 2.3 2.3 7.13 5.60 346.90 23.30 37.50 6.45LC 185x50x20x 185 50 2.0 2.0 6.24 4.90 305.50 20.80 33.03 5.74LC 175x50x20x 175 50 4.3 4.3 12.33 9.68 519.00 36.20 59.32 10.12LC 175x50x20x 175 50 4.0 4.0 11.55 9.07 489.50 34.60 55.94 9.67LC 175x50x20x 175 50 3.2 3.2 9.41 7.38 406.00 29.60 46.40 8.28LC 175x50x20x 175 50 2.9 2.9 8.58 6.74 372.90 27.50 42.61 7.70LC 175x50x20x 175 50 2.6 2.6 7.75 6.08 338.70 25.30 38.71 7.08LC 175x50x20x 175 50 2.3 2.3 6.90 5.41 303.60 22.90 34.70 6.41LC 175x50x20x 175 50 2.0 2.0 6.04 4.74 267.40 20.40 30.56 5.71LC 175x50x20x 175 50 1.8 1.8 5.46 4.28 242.80 18.70 27.75 5.23LC 175x50x20x 175 50 1.6 1.6 4.87 3.82 217.60 16.90 24.87 4.72LC 150x75x25x 150 75 4.0 4.0 12.95 10.16 454.30 99.60 60.57 20.55LC 150x75x25x 150 75 3.2 3.2 10.53 8.26 375.10 83.50 50.01 17.25LC 150x75x20x 150 75 4.0 4.0 12.55 9.85 443.20 90.70 59.10 18.16LC 150x75x20x 150 75 3.2 3.2 10.21 8.01 366.30 76.30 48.84 15.29LC 150x65x20x 150 65 4.0 4.0 11.75 9.22 400.60 63.40 53.41 14.44LC 150x65x20x 150 65 3.2 3.2 9.57 7.51 331.80 53.70 44.24 12.23LC 150x65x20x 150 65 2.3 2.3 7.01 5.50 247.70 41.00 33.03 9.36LC 150x50x20x 150 50 3.2 3.2 8.61 6.76 280.10 28.20 37.34 8.16LC 150x50x20x 150 50 2.3 2.3 6.32 4.96 210.10 21.80 28.02 6.32LC 150x50x18x 150 50 4.3 4.3 11.08 8.70 351.10 32.60 46.82 9.30LC 150x50x18x 150 50 4.0 4.0 10.39 8.15 331.60 31.20 44.22 8.89LC 150x50x18x 150 50 3.2 3.2 8.48 6.66 276.10 26.80 36.81 7.64LC 150x50x18x 150 50 2.9 2.9 7.74 6.08 253.90 24.90 33.85 7.11LC 150x50x18x 150 50 2.6 2.6 6.99 5.49 230.90 22.90 30.79 6.54LC 150x50x18x 150 50 2.3 2.3 6.23 4.89 207.20 20.80 27.63 5.94LC 150x50x18x 150 50 2.0 2.0 5.46 4.28 182.80 18.50 24.37 5.30LC 150x50x18x 150 50 1.8 1.8 4.94 3.87 166.10 17.00 22.14 4.85LC 150x50x18x 150 50 1.6 1.6 4.41 3.46 149.00 15.30 19.87 4.38LC 125x50x20x 125 50 4.0 4.0 9.55 7.50 216.70 30.90 34.68 9.32LC 125x50x20x 125 50 3.2 3.2 7.81 6.13 181.00 26.50 28.97 8.00LC 125x50x20x 125 50 2.3 2.3 5.75 4.51 136.40 20.60 21.82 6.21LC 125x50x15x 125 50 4.3 4.3 9.75 7.65 220.50 28.10 35.28 8.12LC 125x50x15x 125 50 4.0 4.0 9.15 7.18 208.60 26.90 33.38 7.78LC 125x50x15x 125 50 3.2 3.2 7.49 5.88 174.50 23.20 27.93 6.73LC 125x50x15x 125 50 2.9 2.9 6.84 5.37 160.80 21.60 25.73 6.27LC 125x50x15x 125 50 2.6 2.6 6.19 4.86 146.50 19.90 23.45 5.78LC 125x50x15x 125 50 2.3 2.3 5.52 4.33 131.70 18.10 21.08 5.26LC 125x50x15x 125 50 2.0 2.0 4.84 3.80 116.40 16.20 18.62 4.70LC 125x50x15x 125 50 1.8 1.8 4.38 3.44 105.90 14.80 16.94 4.30LC 125x50x15x 125 50 1.6 1.6 3.91 3.07 95.10 13.40 15.22 3.89LC 125x50x15x 125 50 1.4 1.4 3.44 2.70 84.10 11.90 13.45 3.47LC 125x50x15x 125 50 1.2 1.2 2.97 2.33 72.80 10.40 11.65 3.02LC 120x60x20x 120 60 3.2 3.2 8.29 6.51 186.10 40.80 31.01 10.52LC 120x60x20x 120 60 2.3 2.3 6.09 4.78 139.80 31.30 23.30 8.09LC 120x40x20x 120 40 3.2 3.2 7.01 5.50 142.40 15.20 23.73 5.68LC 100x50x15x 100 50 3.2 3.2 6.69 5.25 103.00 21.50 20.60 6.54LC 100x50x15x 100 50 2.9 2.9 6.12 4.80 95.10 20.00 19.02 6.10LC 100x50x15x 100 50 2.6 2.6 5.54 4.35 86.80 18.40 17.37 5.63LC 100x50x15x 100 50 2.3 2.3 4.94 3.88 78.20 16.80 15.64 5.12LC 100x50x15x 100 50 2.0 2.0 4.34 3.40 69.20 15.00 13.85 4.57LC 100x50x15x 100 50 1.8 1.8 3.93 3.08 63.00 13.70 12.61 4.19

sda3

LC 100x50x15x 100 50 1.6 1.6 3.51 2.76 56.70 12.40 11.34 3.79LC 100x50x15x 100 50 1.4 1.4 3.09 2.43 50.20 11.10 10.04 3.38LC 100x50x15x 100 50 1.2 1.2 2.67 2.09 43.50 9.60 8.71 2.95LC 90x45x15x3 90 45 3.2 3.2 6.05 4.75 74.40 15.90 16.52 5.45LC 90x45x15x2 90 45 2.9 2.9 5.54 4.35 68.80 14.80 15.29 5.10LC 90x45x15x2 90 45 2.6 2.6 5.02 3.94 62.90 13.70 13.98 4.71LC 90x45x15x2 90 45 2.3 2.3 4.48 3.52 56.80 12.50 12.62 4.30LC 90x45x15x2 90 45 2.0 2.0 3.94 3.09 50.40 11.20 11.19 3.85LC 90x45x15x1 90 45 1.8 1.8 3.57 2.80 45.90 10.30 10.21 3.53LC 90x45x15x1 90 45 1.6 1.6 3.19 2.51 41.40 9.30 9.19 3.20LC 90x45x15x1 90 45 1.4 1.4 2.81 2.21 36.70 8.30 8.15 2.86LC 90x45x15x1 90 45 1.2 1.2 2.43 1.90 31.80 7.20 7.07 2.50LC 75x38x15x2 75 38 2.6 2.6 4.26 3.35 36.20 8.50 9.66 3.55LC 75x38x15x2 75 38 2.3 2.3 3.82 3.00 32.80 7.70 8.75 3.25LC 75x38x15x2 75 38 2.0 2.0 3.36 2.64 29.20 7.00 7.79 2.92LC 75x38x15x1 75 38 1.8 1.8 3.05 2.39 26.70 6.40 7.12 2.69LC 75x38x15x1 75 38 1.6 1.6 2.73 2.14 24.10 5.80 6.43 2.45LC 75x38x15x1 75 38 1.4 1.4 2.41 1.89 21.40 5.20 5.71 2.19LC 75x38x15x1 75 38 1.2 1.2 2.08 1.63 18.60 4.60 4.97 1.92LC 65x30x15x2 65 30 2.6 2.6 3.59 2.81 21.70 4.50 6.68 2.43LC 65x30x15x2 65 30 2.3 2.3 3.22 2.53 19.80 4.10 6.08 2.24LC 65x30x15x2 65 30 2.0 2.0 2.84 2.23 17.70 3.70 5.44 2.03LC 65x30x15x1 65 30 1.8 1.8 2.58 2.02 16.20 3.50 4.99 1.88LC 65x30x15x1 65 30 1.6 1.6 2.31 1.82 14.70 3.20 4.52 1.71LC 65x30x15x1 65 30 1.4 1.4 2.04 1.60 13.10 2.80 4.02 1.54LC 65x30x15x1 65 30 1.2 1.2 1.77 1.39 11.40 2.50 3.51 1.35

TYPE W FB FV EApitong 5.40 13.00 1.36 5.76Guijo 6.40 17.10 1.89 6.67Mahogany 5.30 13.00 2.13 3.67Mayapis 3.40 11.00 0.73 8.14Molave 6.50 18.90 2.27 5.15Narra 4.90 14.20 1.51 4.68Lauan 3.50 10.90 1.17 4.59Tanguile 3.60 13.10 1.03 8.62W.Lauan 3.50 11.00 1.03 7.72Yakal 7.30 19.30 1.96 7.70

sda3

ASEP BSTRESS1111111111111111111111 147.001 147.001 147.001 147.001 147.001 147.001 147.001 147.001 147.001 147.001 147.001 147.001 123.601 123.601 147.001 147.001 147.001 147.001 147.001 147.001 147.001 147.001 147.001 147.001 123.601 123.601 123.601 123.601 123.601 147.001 123.60

sda3

1 123.601 147.001 147.001 147.001 147.001 123.601 123.601 123.601 123.601 123.601 147.001 147.001 147.001 147.001 147.001 147.001 123.601 147.001 123.601 147.001 147.001 147.001 147.001 123.601 123.601 123.601 123.601 123.601 147.001 147.001 123.601 147.001 147.001 147.001 147.001 123.601 123.601 123.601 123.601 123.601 123.601 123.601 147.001 123.601 147.001 147.001 147.001 123.601 123.601 123.601 123.601 123.601 123.60

sda3

1 123.601 147.001 147.001 123.601 123.601 123.601 123.601 123.601 123.601 123.601 123.601 123.601 123.601 123.601 123.601 123.601 123.601 123.601 123.601 123.601 123.601 123.601 123.601 123.601 147.001 147.001 147.001 147.001 147.001 147.001 147.001 147.001 147.001 147.001 147.001 147.001 123.601 123.601 147.001 147.001 147.001 147.001 147.001 147.001 147.001 147.001 147.001 147.001 123.601 123.601 123.601 123.601 123.60

sda3

1 147.001 123.601 123.601 147.001 147.001 147.001 147.001 123.601 123.601 123.601 123.601 123.601 147.001 147.001 147.001 147.001 147.001 147.001 123.601 147.001 123.601 147.001 147.001 147.001 147.001 123.601 123.601 123.601 123.601 123.601 147.001 147.001 123.601 147.001 147.001 147.001 147.001 123.601 123.601 123.601 123.601 123.601 123.601 123.601 147.001 123.601 147.001 147.001 147.001 123.601 123.601 123.601 123.60

sda3

1 123.601 123.601 123.601 147.001 147.001 123.601 123.601 123.601 123.601 123.601 123.601 123.601 123.601 123.601 123.601 123.601 123.601 123.601 123.601 123.601 123.601 123.601 123.601 123.601 123.601 123.60

purlins design wood

PROJECT : A TWO STOREY 6 UNITS APARTMENTLOCATION: B-12, L-21, GR-1OWNER : ESTELLITA RAYMUNDOSUBJECT : PURLINS DESIGN - WOOD

Design Criteria: Design Loads:Height of truss (m) 2.00 Dead loads:Length of truss (m) 7.00 G.I. Roofing (Pa)

Spacing of truss (m) 3.67 Live loads (Pa) Pitch 0.57142857 Wind loads

Spacing of purlins (m) 0.60 ht. of roof (m) 6.00 Combined Ht., exposure

Wind zone II Exposure category B

Importance factor. I 1.00 Mod of elasticity of wood (Gpa) 5.76

Yield strength of wood (Mpa) 5.67 CeCqqsi =

Trial section RESULTS SHEAR FLEXUREWidth (mm) Depth (mm)

50.00 75.00 LOAD CASE SAFE! FAILS! Moment of inertia LOAD CASE SAFE! FAILS!

Ix 1.758E+6 Design Computation:Iy 7.813E+5 Normal loads Wn

DL = 55.89Wood Properties LL = 403.74

Type of wood Apitong WL = 422.10Weight of wood (KN/m3) 5.40 Tangential lo Wt

Allow. Bending stress (Mpa) 13.00 Allow. Shear stress (Mpa) 1.36 DL = 35.9384334776943

Modulus of elasticity (Gpa) 5.76 LL = 259.600422412239

LOAD ANALYSISLoad case Design Load Design shear

Wn (N/m) Wt (N/m) V (N)1 D + L 459.64 295.54 689.452 0.75( D+L+W) 661.30 221.65 991.95

Load case Shear strength Fy actual

3 D + L 0.28 0.18 0.334 2.75( D+L+W) 0.40 0.13 0.42

Load case Fflexural strenght Total Fb (actual)Fn (Mpa) Fn (Mpa) Mpa

3 D + L 16.47 15.89 32.364 2.75( D+L+W) 23.70 11.92 35.62

Load case Deflection Y (mm)

Wind stagnation press.,qs (Pa)

& Gust coefficient, CePressure coefficient Cq

Design wind pressure, P

mm4

purlins design wood

Yn Yt Y actual4 D + L 106.76 154.46 187.775 3.75( D+L+W) 153.61 115.84 192.39

purlins design wood

77.00 800.00

1,500.00

0.67 0.70

703.50

DEFLECTION

FAILS! FAILS!

N/mN/mN/m

N/mN/m

Design shear Design momentV (N) Mn (N-m) Mt (N-m)

443.31 772.16 496.49 332.48 1,110.95 372.37

Fy allow Remarks

1.36 SAFE! 1.36 SAFE!

Fb (allow) RemarksMpa

13.00 FAILS! 13.00 FAILS!

Deflection Y (mm) Remarks

Design wind pressure, P (Pa)

purlins design wood

Y Allow20.37 FAILS! 20.37 FAILS!

design of steel purlins

Page 1

PROJECT : PROPOSED TWO STOREY RESIDENTIAL BLDG.LOCATION:OWNER :

SUBJECT : DESIGN OF PURLINSCODE: NSCP 1992

Date: 04/07/23Given

Height of truss 2.00 m.Length of truss 10.50 m.Spacing of truss 1.20 m.Slope of roofing 0.38 m.Spacing of purlins 0.60 m.ht. of roof 3.50 m.Wind zone II Exposure category B Importance factor. I 1.00 Modulus of elasticity of steel 200.00 GpaYield strength of steel 170.00 MpaSag rods: none

Enter no. 1.00 LOAD ANALYSISLoads Load case

Dead loads: 1.00 G.I. Roofing: 77.00 Pa 2.00

Live loads: 700.00 PaWind loads - FLEXURAL STRENGHT

2,700.00 Pa Load caseCombined Ht., exposure 1.00

0.63 2.00 0.70

=CeCqqsi Check for deflection1,190.70 Pa

Allowable deflectionTrial section LC 75x38x15x1.2

Yn =Weight = 2.08 kg/m

H = 75 mm.B = 38 mm. Yn = Tf = 1.2 mm.Ix = 18.6 Cm3Iy = 4.6 Cm3Sx = 4.97 Cm3Sy = 1.92 Cm3

Θ = 20.854458 Degrees

Normal loads,

Tangential loads,

Wind stagnation pressure,qs

& Gust coefficient, CePressure coefficient Cq

Design wind pressure, P

design of steel purlins

Page 2

DL = 62.241368687 N/mLL = 392.48484867 N/mWL = 714.42 N/m

DL = 23.710997595 N/mLL = 149.51803759 N/m

LOAD ANALYSIS MOMENTSLoad case Wn (N/m) Wt (N/m) Mn (N-m) Mt (N-m)

D + L 454.73 173.23 81.85 31.18 0.75( D+L+W) 876.86 129.92 157.83 23.39

FLEXURAL STRENGHT Check if compact section RemarksLoad case Load case ( fbx ) Mpa ( fby) Mpa Fbx Fby Govern

D + L 16.47 32.480444 138.00 123.60 0.38 safe case 20.75( D+L+W) 31.76 24.360333 138 123.60 0.43 safe case 2

Check for deflection

Allowable deflection 6.67 mm

5Wn L4= 0.64 mm SAFE384EIx

5Wt L4= 0.51 mm SAFE384EIy

Normal loads, Wn:

Tangential loads, Wt

design+of+purlins+revised 2005 (1)

Documents

sag rods slope

fby fby

fbx fbx

normal projection

section placing

suggested

purlins loadings

roofing spacing