Çàîòì.±0.000ïðèíÿòóðîâåíü Èñõîäíûåäàííûå: Ðàéîíñòðîèòåëüñòâà: Òèïìåñòíîñòè Âåòðîâîéðàéîí Âåðõíÿÿîòìåòêàêîíñòðóêöèé Áîëüøàÿñòîðîíàñòåêëà(a) Ìåíüøàÿñòîðîíàñòåêëà(b) Òèïñòåêëà Òîëùèíàñòåêëà(t) Îáúåìíûéâåññòåêëà(V) ÷èñòîãîïîëàïåðâîãîýòàæà. Ìîñêâà B I 10 ì 6,000 ì 3,000 ì = = (A;B;C) (Ia;I;II;III;IV;V;VI;VII) çàêàëёííîå 12 ìì 0,0025 êã/ñì 3 (ïðåäâàðèòåëüíàÿ) Ðàñ÷åòíûåçíà÷åíèÿíàãðóçîêíàýëåìåíòûîñòåêëåíèÿîïðåäåëÿþòñÿêàêïðîèçâåäåíèåèõíîðìàòèâíûõçíà÷åíèéíàêîýôôèöèåíòû íàäåæíîñòèïîíàãðóçêàì,ïðèíèìàåìûåäëÿ: γf âåòðà = 1,4 ñîáñòâåííîãîâåñà = 1,1 γ с.в f Âåëè÷èíàðàñ÷åòíîéíàãðóçêèîòâåòðîâîãîäàâëåíèÿîïðåäåëÿåòñÿïîôîðìóëå qрв = ( w0 + w p ) kc γ вf ãäå: W 0 —íîðìàòèâíîåçíà÷åíèåâåòðîâîãîäàâëåíèÿ,ïðèíèìàåòñÿïî6.4ÑÍèÏ2.01.07-85*,êÏà; Wp(íîðìàòèâíîåçíà÷åíèåïóëüñàöèîííîéñîñòàâëÿþùåéâåòðîâîéíàãðóçêèíàâûñîòåz),êÏà Wp=W 0 ·ζ·ν, · ζ·ν, ãäå: W 0 -ñì.Âûøå êîýôôèöèåíòïóëüñàöèéäàâëåíèÿâåòðàíàóðîâíåz êîýôôèöèåíòïðîñòðàíñòâåííîéêîððåëÿöèèïóëüñàöèéäàâëåíèÿâåòðà в k—êîýôôèöèåíò,ó÷èòûâàþùèéèçìåíåíèåâåòðîâîãîäàâëåíèÿïîâûñîòå (ïðèíèìàåìîãîïî6.5ÑÍèÏ2.01.07-85*); ñ—àýðîäèíàìè÷åñêèéêîýôôèöèåíò(ïðèíèìàåòñÿïî6.6ÑÍèÏ2.01.07-85*). qрв = ( w0 + w p ) kc γ вf = = 0,23 ζ = ν = Wp = 0,00 0,00 0 = = 0,65 2,00 0,42 êÏà Âåëè÷èíàðàñ÷åòíîéíàãðóçêèîòñîáñòâåííîãîâåñàîïðåäåëÿåòñÿïîôîðìóëå qрс.в = q0с.в cos αγ с.в ãäå: f с.в q—ñîáñòâåííûéâåñêîíñòðóêöèè; = 30 êã/ì 2 0 = V it a—óãîëíàêëîíàîñòåêëåíèÿ = 0 qрс.в = q0с.в cos αγ с.в f = q p —ñóììàðíàÿðàñ÷åòíàÿíàãðóçêàíàñòåêëî 0,33 êÏà = 0,75 êÏà Òîëùèíóñòåêëà,îïåðòîãîïî4ñòîðîíàì,ñëåäóåòîïðåäåëÿòüïîôîðìóëå ãäå: 0, 32 q p ab / R u m ( β λ 2 + 1) δ= 250 R è —ðàñ÷åòíîåñîïðîòèâëåíèåñòåêëàíàðàñòÿæåíèåïðèèçãèáå,ïðèíèìàåìîåðàâíûì äëÿïðîñòîãîñòåêëà = 150 êÏà äëÿçàêàëёííîãîñòåêëà = 250 êÏà λ=a/b = 2 b—êîýôôèöèåíò,ïðèíèìàåìûéðàâíûì: = 0,1 0,2ïðèl<1,5; 0,1ïðè1,5<l<2; 0,08ïðèl>2; ò—êîýôôèöèåíò,çàâèñÿùèéîòñî÷åòàíèÿèëèâèäàíàãðóçêèíàñòåêëî,îïðåäåëÿåòñÿïîôîðìóëå m = 1+ 0, 25 q рв = 1,14 + q рс.в + q рсн ãäå:—ðàñ÷åòíàÿíàãðóçêàîòñíåãà(=0äëÿâåðòèêàëüíîãîîñòåêëåíèÿ) q рв q рсн δ= 0, 32 q p ab / R u m ( β λ 2 + 1) = 10,4053 Ïðîãèáñòåêëÿííîéïëàñòèíûïðèðàâíîìåðíîðàñïðåäåëёííîéíàãðóçêå: f = β1 ⋅ q р ⋅ b 4 E ⋅ t3 = b 2 a ⋅ 1 + 2 ln − 1 = b a β1 = 0, 25 4,06 ìì ,ãäå: 0,086643 -êîýôôèöèåíò,ó÷èòûâàþùèéðàçìåðû E-êîýôôèöèåíòóïðóãîñòèäëÿñòåêëà = 751010 Ïà Ïîðåçóëüòàòàìðàñ÷åòàòîëùèíàñòåêëàíåìåíåå: Ïðèíÿòîåñòåêëî: çàêàëёííîå 12 ìì, 11 ìì êÏà