GP 078-2003
Transcript of GP 078-2003
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I
GHIO PRIVIND PROIECTAREA HALELOR U$0ARE
CU STRUCTURA METALICA
INDICATIV GP 078-03
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CUPRINS
1. Generalitati ................................................................................. 65 1 . 1 . Scop .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. . .. .. .. .. .. . .. .. ..... ... .. . 65 1.2. Obiective �i domenii de aplicare .................................. 65 1.3. Definitii �i notatii .......................................................... 66
1.3.1. Definitii .............................................................. 66 1.3.2. Notatii .............................................................. ;. 66
1.4. Clasificari ..................................................................... 67 1.5. Prescriptii tehnice cornplementare ............................... 70
) \ 1.5.1. Standarde ........................................................... 70 1.5.1.1. Principii generate .................................. 70 1.5.1.2. lncarcari ................................................ 71 1.5.1.3. Prescriptii de proiectare spec'ifice
constructiilor din otel ............................ 71 1.5.1.4. Oteluri pentru constructii metalice ....... 72 1.5.1.5. Protectia allticor6ziva ........................... 73, 1.5.1.6. Invelitori ............................................... 74
1.5.2. Alte categorii de prescriptii tehnice .................... 74
2. Sisteme constructive: alcatuire �i conformare ......................... 75 2.1. Forma �i alcatuirea de ans;mblu .................................. 75 2.2. Stalpi, grinzi �i noduri .................................................. 77 2.3. Contravantuiri orizontale de ansamblu ......................... 78 2.4. lnvelitori �i pane .................................. , ........................ 79 2.5. Pereti ............................................................................. 81 2.6. Fundatii ......................................................................... 82 2.7. Rosturi .......................................................................... 82
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ANEXE
Anexa A. Calculul capacitatii de rotire plastica 124
Anexa B. Calculul de ordinul I la stari limita ultime SLU ...................................................................... 128
Anexa C. Calculul rezistentei critice de flambaj ................. 138
Anexa D. Calculul de ordinul II la stari limita ultime SLU ...................................................................... 150
Anexa E. Calculul starii limita ale exploatarii normale SLEN .................................................................... 152
Anexa F. Pierderea stabilitatii laterale a grinzilor ............... 153
Anexa G. Verificarea de rezistenta a sectiunii transversale ........................................................... 179
Anexa H. Verificarea de stabilitate �i flambaj a elementelor ........................................................... 185
Anexa I. Determinarea giituirii minime Z:nec ...................... 191
Anexa J. Diagrame Wood . .... .. .. . .. .. . .. ....... .. .. .. . . . . . .. .. . . . . . .. .. .. . 194
Exemplu de proiectare: Exemplu de calcul al unei hale parter
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cu o singura deschidere, aviind structura principala de rezistenta executate din elemente compuse din table cu sectiuni de clasa 3 sau 4 .................................................. 199
GHID PRIVIND PROIECT AREA HALELOR
USO ARE CU STRUCTURA MET ALICA lndicativ
GP 078-03
1. GENERALITATI
1.1. Scop
Prezentul ghid este conceput a se aplica la proiectarea halelor metalice u�oare din domeniul constructiilor civile, industriale �i agricole. El este aplicabil partial Ji la alte tipuri de structuri metalice u�oare.
1.2. Obiective �i domeniu de aplicare
Halele metalice u�oare sunt constructii parter cu una sau mai multe deschideri, eventual plus etaj, cu inchideri �i elemente de compartimentare din materiale cu greu,tate r�dusa, fara poduri rulante, eventual dotate cu echipamente de ridicat' �i transport interior, cu capacitate redusa (grinzi rulante).
in general structura principala de rezistenta a acestor constructii se realizeaza prin cadre cu inima plina, alcatuite din profile laminate sau avand sectiuni formate qin tablf sudate. Pentru deschiderile mici se pot folosi solutii structurale realizate in intregime din profile cu pereti subtiri formate la rece.
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