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TCVN 6052 1995
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tiu chun vit nam tcvn 6052 : 1995
Gin gio thp Steel scaffolding
1. Phm vi p dng Tiu chun ny p dng cho gin gio bng thp, th|ng dng trong thi cng, sa cha v hon thin cc cng trnh xy dng.
2. Kt cu, thng s v kch th|c c bn 2.1. Kt cu ca mt khoang gin gio thp phi ph hp vi quy nh trn hnh 1.
2.2. Thng s v kch th|c c bn ca gin gio thp |c quy nh trong bng 1 v
hnh 2.
Ch thch: Cc hnh v trong tiu chun ny khng quy nh kt cu c th ca gin gio.
tiu chun vit nam tcvn 6052 : 1995
Bng 1
Ti trng lm vic cho php 1m2 sn
cng tc N
Chiu rng
B
mm
Chiu cao
H
mm
Chiu di L
mm
ng thp khung ng |ng knh x chiu dy
mm
2000 914
1219
1524
1700
1930
1219
1524
1829
42 2,5
Ch thch:
1. Theo yu cu ca khch hng cho php ch to gin gio thp c cc thng s v kch th|c khc vi quy nh trong bng 1;
2. Vic la chn cc kch th|c B, H, L |c tin hnh theo yu cu c th ca khch hng. 3. Yu cu k thut 3.1. Bu lng, ai c, kho ng lm bng thp CT 51 TCVN 1765: 1985.
ng |c ch to bng thp CT 38 TCVN 1765: 1985. Ch thch: Cho php ch to bng cc vt liu khc c c tnh t|ng |ng.
3.2. Dung sai |ng knh ng thp lm gin gio l r 0,5mm. cong ca ng thp khng v|t qu 1mm/1000mm chiu di ng.
3.3. Trn b mt ngoi ca ng khng cho php cc vt lm c chiu su ln hn 1mm. Tng din tch cc vt lm trn 1m chiu di ng khng v|t qu 100mm2. Trong phm vi chiu di 120mm cc u ng ng khng cho php cc vt lm c chiu su ln hn 0,5mm.
3.4. Cc mi hn ca mp ng (nu dng ng thp hn) phi u, c, chc v khng b chy, r, thng. Khi sa ngui mi hn cho php phn mi hn cao hn mt ngoi ng n 1mm v thp hn mt ngoi ng n 0,2mm.
3.5. u ng gia cng xong phi phng v l phi c mp vt 0,5mm u 45o. 3.6. Cc ly kho lin kt thanh ging trn khung ng phi m bo nhy, thun tin
khi thao tc v an ton cho mi lp ghp. 3.7. Cc kho mc tm sn phi d thao tc, m bo tm sn khng b bt ra khi ng
ngang.
3.8. Gin gio phi |c ch to cng vng, chu |c ti trng th quy nh ti iu 4.5 ca tiu chun ny.
3.9. Cc chi tit ca gin gio ch to trong mt c s sn xut, c cng mt thng s kch th|c phi |c lp ln vi nhau mt cch d dng khi s dng.
3.10. Gin gio thp phi |c sn mu, lp sn phi |c bm chc v ph u trn ton b b mt ca cc chi tit.
4. Ph|ng php th 4.1. Cht l|ng vt liu ch to gin gio |c kim tra bng cch xc nh ngun gc
vt liu u vo ca c s sn xut. Trong tr|ng hp khng xc nh |c ngun gc vt liu th phi tin hnh th nghim c tnh vt liu.
4.2. Kim tra cht l|ng bn ngoi ca cc chi tit ch to gin gio bng mt th|ng.
tiu chun vit nam tcvn 6052 : 1995
4.3. Kim tra cc kch th|c hnh hc, dung sai v sai lch cc kch th|c hnh hc bng cc dng c o chuyn dng c chnh xc 0,1mm.
4.4. Kim tra s hot ng ca cc c cu kho mc bng tay.
4.5. Th cng vng ca gin gio |c tin hnh theo trnh t sau: Lp bt k hai khoang gin gio (gm ba khung ng, bn cp ging cho v hai tm sn), lin kt thnh mt tng. Xp ti trng t t n 3000 N phn b u trn mt tm sn trong thi gian 4 gi. Sau thi gian th ni trn ton b cc chi tit ca gin gio khng |c c bt k mt sai hng, bin dng no so vi cc quy nh t iu 3.2 n iu 3.9 ca tiu chun ny. Sau khi th ti nh| trn nu khng t phi kim tra lp li ln th 2 vi hai khoang gin gio khc. Ti trng th l 4000N, thi gian th l 4 gi. Kt qu th ln th 2 l kt qu cui cng.
4.6. Kim tra lp ln ca cc chi tit gin gio bng cch ly cc chi tit lp bn khoang gin gio thnh hai tng (hai khoang trn v hai khoang d|i). Tt c cc chi tit phi m bo lp ln.
5. Bao gi, ghi nhn, vn chuyn v bo qun 5.1. Cc chi tit ca gin gio |c bao gi bng cch tho ri, xp ring tng loi v
|c b chc chn bng dy thp. Cc loi chi tit nh |c ng trong cc hm g. Khi l|ng ca mi n v bao gi ph hp vi yu cu gia bn sn xut v khch hng.
5.2. Trong mi b gin gio c mt khung ng |c gn bin ghi r: - Tn n v ch to;
- K hiu sn phm;
- Khi l|ng ton b; 5.3. C s sn xut phi bi du m chng r cc b mt khng sn, b mt ren v bo
qun gin gio ti cc ni kh ro, c mi che v cch cc mi tr|ng n mn.