Perencanaan Jurai

Perhitungan Panjang Batang JuraiPerhitungan panjang batang selanjutnya disajikan dalam tabel di bawah ini:Nomor BatangPanjang Batang (m)

12,1156

22,1156

32,1156

42,1156

52,1156

62,1156

72,1156

82,1156

91,9887

101,9887

111,9887

121,9887

131,9887

141,9887

151,9887

161,9887

170,7217

182,1156

191,4434

202,4573

212,1651

222,9398

232,8868

243,5055

253,6084

264,1202

274,3301

284,765

295,0518

305,4292

315,7735

Perhitungan Luasan Jurai

Panjang atap zz-ww= 0,5 1,4434 = 0,7217 mPanjang atap zzww= wwtt= ttqq= qqnn= nnkk= kkhh= hhee= eebb= bbyy= yv= vs= sp= mj= jg= gd= 0,7217 mPanjang atap da= 1,4434 mPanjang atap ga= gd + da = 0,7217 + 1,4434 = 2,1651 mPanjang atap b-c= 5,6250 mPanjang atap h-i= 4,6875 mPanjang atap n-o= 4,0625 mPanjang atap t-u= 3,4375 mPanjang atap zz-aa= 2,8125 mPanjang atap ff-gg= 2,1875 mPanjang atap ll-mm= 1,5625 mPanjang atap rr-ss= 0,9375 mPanjang atap xx-yy= 0,3125 mPanjang atap e-f= 5,0 mPanjang atap k-l= 4,375 mPanjang atap q-r= 3,75mPanjang atap w-x= 3,125 mPanjang atap cc-dd= 2,5 mPanjang atap ii-jj= 1,875 mPanjang atap oo-pp= 1,25 mPanjang atap uu-vv= 0,625 m

Luas atap abc.ihgL= = = 22,3276 m2 Luas atap ghi.onmL= = = 12,6298 m2 Luas atap onm.utsL= = = 10,8255 m2 Luas atap stu.yzzaaL= = = 9,0213 m2 Luas atap yzaa.ggffeeL= = = 7,217 m2 Luas atap eeffgg.mmllkkL= = = 5,4128 m2 Luas atap kkllmm.ssrrqqL= = = 3,6085 m2 Luas atap qqrrss.xxyyzzL= = = 1,8043 m2 Luas atap wwyyzzL= = = 0,2255 m2

Panjang gording def= de + ef = 5 + 5 = 10 mPanjang gording jkl= jk + kl = 4,375 + 4,375 = 8,75 mPanjang gording pqr= pq + qr = 3,75 + 3,75 = 7,5 mPanjang gording vwx= vw + wx = 3,125 + 3,125 = 6,25 mPanjang gording bbccdd= bbcc + ccdd = 2,5 + 2,5 = 5 mPanjang gording hhiijj= hhii + iijj = 1,875 + 1,875 = 3,75 mPanjang gording nnoopp= nnoo + oopp = 1,25 + 1,25 = 2,5 mPanjang gording ttuuvv= ttuu + uuvv = 0,625 + 0,625 = 1,25 m

Panjang plafond zz-ww= 0,5 1,25 = 0,625 mPanjang plafond zzww= wwtt= ttqq= qqnn= nnkk= kkhh= hhee= eebb= bbyy= yv= vs= sp= mj= jg= gd= 0,625 mPanjang plafond da= 1,25 mPanjang plafond ga= gd + da = 0,625 + 1,25 = 1,875 mPanjang plafond b-c= 5,6250 mPanjang plafond h-i= 4,6875 mPanjang plafond n-o= 4,0625 mPanjang plafond t-u= 3,4375 mPanjang plafond zz-aa= 2,8125 mPanjang plafond ff-gg= 2,1875 mPanjang plafond ll-mm= 1,5625 mPanjang plafond rr-ss= 0,9375 mPanjang plafond xx-yy= 0,3125 mPanjang plafond e-f= 5,0 mPanjang plafond k-l= 4,375 mPanjang plafond q-r= 3,75mPanjang plafond w-x= 3,125 mPanjang plafond cc-dd= 2,5 mPanjang plafond ii-jj= 1,875 mPanjang plafond oo-pp= 1,25 mPanjang plafond uu-vv= 0,625 m

Luas plafond abc.ihgL= = = 19,3359 m2 Luas plafond ghi.onmL= = = 10,9375 m2 Luas plafond onm.utsL= = = 9,375 m2 Luas plafond stu.yzzaaL= = = 7,8125 m2 Luas plafond yzaa.ggffeeL= = = 6,25 m2 Luas plafond eeffgg.mmllkkL= = = 4,6875 m2 Luas plafond kkllmm.ssrrqqL= = = 3,125 m2 Luas plafond qqrrss.xxyyzzL= = = 1,5625 m2 Luas plafond wwyyzzL= = = 0,1953 m2

Perhitungan Pembebanan Jurai

Data-data pembebanan:Berat gording= 7,68 kg/m (gording kayu b/h = 8/12 mm)Jarak antar kuda-kuda= 3,60 mBerat penutup atap= 50 kg/m2Beban hujan= (40-0,8) kg/m2 = (40-0,8(30)) kg/m2 = 16 kg/m2Berat plafond + penggantung= 18 kg/m2

a. Perhitungan BebanBEBAN MATI1) P1 Beban kuda-kuda= (1/2 btg(1+9) 2 7,38 = (1/2 (2,1156+1,9887) 2 7,38= 30,2897 kg Beban gording= Berat gording Panjang gording= 7,68 10 = 76,8 kg Beban atap= Luas atap abc.ihg Berat atap= 22,3276 50 = 1116,38 kg Beban plat sambung= 30% beban kuda-kuda= 30 % 30,2897 = 9,0869 kg Beban bracing= 10% beban kuda-kuda= 10% 30,2897 = 3,0290 kg Beban plafond= Luas plafond abc.ihg berat plafond= 19,3359 18 = 348,0462 kg2) P2 Beban kuda-kuda= (1/2 btg(1+2) 2 7,38 + (1/2 btg(17+18) 2 3,38 = (1/2 (2,1156+2,1156) 2 7,38 + (1/2 (0,7217+2,1156) 2 3,38 = 40,8163 kg Beban gording= Berat gording Panjang gording= 7,68 8,75 = 67,2 kg Beban atap= Luas atap ghi.onm Berat atap= 12,6298 50 = 631,49 kg Beban plat sambung= 30% beban kuda-kuda= 30% 40,8163 = 12,2449 kg Beban bracing= 10% beban kuda-kuda= 10% 40,8163 = 4,0816 kg

3) P3 Beban kuda-kuda= (1/2 btg(2+3) 2 7,38 + (1/2 btg(19+20) 2 3,38 = (1/2 (2,1156+2,1156) 2 7,38 + (1/2 (1,4434+2,4573) 2 3,38 = 44,4106 kg Beban gording= Berat gording Panjang gording= 7,68 7,5 = 57,6 kg Beban atap= Luas atap onm.uts Berat atap= 10,8255 50 = 541,275 kg Beban plat sambung= 30% beban kuda-kuda= 30% 44,4106 = 13,3232 kg Beban bracing= 10% beban kuda-kuda= 10% 44,4106 = 4,4411 kg

4) P4 Beban kuda-kuda= (1/2 btg(3+4) 2 7,38 + (1/2 btg(21+22) 2 3,38 = (1/2 (2,1156+2,1156) 2 7,38 + (1/2 (2,1651+2,9398) 2 3,38 = 48,4808 kg Beban gording= Berat gording Panjang gording= 7,68 6,25 = 67,2 kg Beban atap= Luas atap stu.yzaa Berat atap= 9,0213 50 = 451,065 kg Beban plat sambung= 30% beban kuda-kuda= 30% 48,4808 = 14,5442 kg Beban bracing= 10% beban kuda-kuda= 10% 48,4808 = 4,848 kg

5) P5 Beban kuda-kuda= (1/2 btg(4+5) 2 7,38 + (1/2 btg(23+24) 2 3,38 = (1/2 (2,1156+2,1156) 2 7,38 + (1/2 (2,8868+3,5055) 2 3,38 = 52,8322 kg Beban gording= Berat gording Panjang gording= 7,68 5,0 = 38,4 kg Beban atap= Luas atap yzaa.ggffee Berat atap= 7,217 50 = 360,85 kg Beban plat sambung= 30% beban kuda-kuda= 30% 52,8322 = 15,8497 kg Beban bracing= 10% beban kuda-kuda= 10% 52,8322 = 5,2832 kg

6) P6 Beban kuda-kuda= (1/2 btg(5+6) 2 7,38 + (1/2 btg(25+26) 2 3,38 = (1/2 (2,1156+2,1156) 2 7,38 + (1/2 (3,6084+4,1202) 2 3,38 = 57,3489 kg Beban gording= Berat gording Panjang gording= 7,68 3,75 = 28,8 kg Beban atap= Luas atap eeffgg.mmllkk Berat atap= 5,4128 50 = 270,64 kg Beban plat sambung= 30% beban kuda-kuda= 30% 57,3489 = 17,2047 kg Beban bracing= 10% beban kuda-kuda= 10% 57,3489 = 5,7349 kg

7) P7 Beban kuda-kuda= (1/2 btg(6+7) 2 7,38 + (1/2 btg(27+28) 2 3,38 = (1/2 (2,1156+2,1156) 2 7,38 + (1/2 (4,3301+4,765) 2 3,38 = 61,9677 kg Beban gording= Berat gording Panjang gording= 7,68 2,5 = 19,2 kg Beban atap= Luas atap kkllmm.ssrrqq Berat atap= 3,6085 50 = 180,425 kg Beban plat sambung= 30% beban kuda-kuda= 30% 61,9677 = 18,5903 kg Beban bracing= 10% beban kuda-kuda= 10% 61,9677 = 6,1968 kg

8) P8 Beban kuda-kuda= (1/2 btg(7+8) 2 7,38 + (1/2 btg(29+30) 2 3,38 = (1/2 (2,1156+2,1156) 2 7,38 + (1/2 (5,0518+5,4292) 2 3,38 = 66,6520 kg Beban gording= Berat gording Panjang gording= 7,68 1,25 = 9,6 kg Beban atap= Luas atap qqrrss.yyxxww Berat atap= 1,8043 50 = 90,215 kg Beban plat sambung= 30% beban kuda-kuda= 30% 66,6520 = 19,9956 kg Beban bracing= 10% beban kuda-kuda= 10% 66,6520 = 6,6652 kg

9) P9 Beban kuda-kuda= (1/2 btg(8) 2 7,38 + (1/2 btg(31) 2 3,38 = (1/2 (2,1156) 2 7,38 + (1/2 (5,7735) 2 3,38 = 35,1276 kg Beban atap= Luas atap wwyyzz Berat atap= 0,2255 50 = 11,275 kg Beban plat sambung= 30% beban kuda-kuda= 30% 35,1276 = 10,5383 kg Beban bracing= 10% beban kuda-kuda= 10% 35,1276 = 3,5128 kg

10) P10 Beban kuda-kuda= (1/2 btg(9+10) 2 7,38 + (1/2 btg(17) 2 3,38 = (1/2 (1,9887+1,9887) 2 7,38 + (1/2 (0,7127) 2 3,38 = 31,7926 kg Beban plafond= Luas plafond ghi.onm Berat plafond= 10,9375 18 = 196,875 kg Beban plat sambung= 30% beban kuda-kuda= 30% 31,7926 = 9,5378 kg

11) P11 Beban kuda-kuda= (1/2 btg(10+11) 2 7,38 + (1/2 btg (18+19) 2 3,38 = (1/2 (1,9887+1,9887) 2 7,38 + (1/2 (2,1156+1,4434) 2 3,38 = 41,3826 kg Beban plafond= Luas plafond onm.uts Berat plafond= 9,375 18 = 168,75 kg Beban plat sambung= 30% beban kuda-kuda= 30% 41,3826 = 12,4148 kg

12) P12 Beban kuda-kuda= (1/2 btg(11+12) 2 7,38 + (1/2 btg(20+21) 2 3,38 = (1/2 (1,9887+1,9887) 2 7,38 + (1/2 (2,4573+2,1651) 2 3,38 = 44,9796 kg Beban plafond= Luas plafond stu.yzaa Berat plafond= 7,8125 18 = 140,625 kg Beban plat sambung= 30% beban kuda-kuda= 30% 44,9796 = 13,4931 kg

13) P13 Beban kuda-kuda= (1/2 btg(12+13) 2 7,38 + (1/2 btg(22+23) 2 3,38 = (1/2 (1,9887+1,9887) 2 7,38 + (1/2 (2,9398+2,8868) 2 3,38 = 49,0471 kg Beban plafond= Luas plafond yzaa.ggffee Berat plafond= 6,25 18 = 112,5 kg Beban plat sambung= 30% beban kuda-kuda= 30% 49,0471 = 14,7141 kg

14) P14 Beban kuda-kuda= (1/2 btg(13+14) 2 7,38 + (1/2 btg(24+25) 2 3,38 = (1/2 (1,9887+1,9887) 2 7,38 + (1/2 (3,5055+3,6084) 2 3,38 = 53,3982 kg Beban plafond= Luas plafond eeffgg.mmllkk Berat plafond= 4,6875 18 = 84,375 kg Beban plat sambung= 30% beban kuda-kuda= 30% 53,3982 = 16,0195 kg

15) P15 Beban kuda-kuda= (1/2 btg(14+15) 2 7,38 + (1/2 btg(26+27) 2 3,38 = (1/2 (1,9887+1,9887) 2 7,38 + (1/2 (4,1202+4,3301) 2 3,38 = 57,9152 kg Beban plafond= Luas plafond kkllmm.ssrrqq Berat plafond= 3,125 18 = 56,25 kg Beban plat sambung= 30% beban kuda-kuda= 30% 57,9152 = 17,3746 kg

16) P16 Beban kuda-kuda= (1/2 btg(15+16) 2 7,38 + (1/2 btg(28+29) 2 3,38 = (1/2 (1,9887+1,9887) 2 7,38 + (1/2 (4,765+5,0518) 2 3,38 = 62,5340 kg Beban plafond= Luas plafond qqrrss.wwxxyy Berat plafond= 1,5625 18 = 28,125 kg Beban plat sambung= 30% beban kuda-kuda= 30% 62,5340 = 18,7602 kg

17) P17 Beban kuda-kuda= (1/2 btg(16+) 2 7,38 + (1/2 btg(30+31) 2 3,38 = (1/2 (1,9887) 2 7,38 + (1/2 (5,4292+5,7735) 2 3,38 = 52,5417 kg Beban plafond= Luas plafond wwyyzz Berat plafond= 0,1953 18 = 3,5154 kg Beban plat sambung= 30% beban kuda-kuda= 30% 52,5417 = 15,7625 kg

Tabel Rekapitulasi Pembebanan Jurai

BEBAN HIDUPBeban hidup yang bekerja pada P1,P2,P3,P4,P5,P6,P7,P8 dan P9 = 100 kg

BEBAN HUJAN1) P1= Beban hujan Luas atap abc.ihg= 16 22,3276 = 357,2416 kg2) P2= Beban hujan Luas atap ghi.onm= 16 12,6298 = 202,0768 kg3) P3= Beban hujan Luas atap onm.uts= 16 10,8255 = 173,208 kg4) P4= Beban hujan Luas atap stu.yzaa= 16 9,0213 = 144,3408 kg5) P5= Beban hujan Luas atap yzaa.ggffee= 16 7,217 = 115,472 kg6) P6= Beban hujan Luas atap eeffgg.mmllkk= 16 5,4128 = 86,6048 kg7) P7= Beban hujan Luas atap kkllmm.ssrrqq= 16 3,6085 = 57,736 kg8) P8= Beban hujan Luas atap qqrrss.yyxxww= 16 1,8043 = 28,8688 kg9) P9= Beban hujan Luas atap wwyyzz= 16 0,2255 = 3,608 kg

Tabel Rekapitulasi Beban Hujan

BEBAN ANGINPerhitungan beban angin:

Koefisien angin tekan= (0,02 30) 0,40 = 0,21) W1= L. atap abc.ihg koef. angin tekan beban angin= 22,3276 0,2 25 = 111,638 kg2) W2= L. atap ghi.onm koef. angin tekan beban angin= 12,6298 0,2 25 = 63,149 kg3) W3= L. atap onm.uts koef. angin tekan beban angin= 10,8255 0,2 25 = 54,1275 kg4) W4= L. atap stu.aazy koef. angin tekan beban angin= 9,0213 0,2 25 = 45,0615 kg5) W5= L. atap yzaa.ggffee koef. angin tekan beban angin= 7,217 0,2 25 = 36,085 kg6) W6= L. atap eeffgg.mmllkk koef. angin tekan beban angin= 5,4128 0,2 25 = 27,064 kg7) W7= L. atap kkllmm.ssrrqq koef. angin tekan beban angin= 3,6085 0,2 25 = 18,0425 kg8) W8= L. atap qqrrss.yyxxww koef. angin tekan beban angin= 1,8043 0,2 25 = 9,0215 kg9) W9= L. atap ww.yy.zz koef. angin tekan beban angin= 0,2255 0,2 25 = 1,1275 kg

Perhitungan Beban Angin