Tus Kws Kho: Saib Mate Txhua Lub Rooj Vag Iav
Nov yog daim ntawv teev cov kev ua raws li xyoo 2024 rau cov iav thaiv, suav nrog cov qauv IBC, ADA, ASTM, thiab ASCE rau ob qho tib si kev siv hauv tsev thiab kev lag luam:
✅ 1. Cov Khoom Siv Yuav Tsum Tau
| Cheebtsam | Cov Lus Qhia Tshwj Xeeb |
|---|---|
| Iav | 12 hli + tempered (ASTM C1048) los yog 15 hli + laminated tempered (ANSI Z97.1) |
| Kho vajtse | 316 stainless hlau marine-grade (ASTM F2090 ua raws li) |
| Ntug tiav | Cov npoo uas tau txhuam/seamed (CPSC 16 CFR 1201; tsis muaj cov npoo ntse) |
✅ 2. Cov Qauv Kev Tsim Kho thiab Kev Nyab Xeeb
- Kev Tiv Thaiv Thauj Khoom:
- 200 lbs lub zog sib xyaw ntawm txhua qhov chaw (IBC 1607.7.1)
- ≤ L/60 deflection (piv txwv li, 1″ max rau 5ft span nyob rau hauv load)
- Qhov siab:
- Cov lawj nyob: 36–42″ (IBC 1015.2)
- Lag luam/ntaiv: 42″ yam tsawg kawg nkaus (ADA 505.4)
- Qhov sib txawv: ≤100mm (4″) kev sim pob ntawm lub hauv paus / ntawm cov vaj huam sib luag (IBC 1015.3)
- Rooj Sab Saum Toj: Yuav tsum muaj rau cov ntaiv (34–38″ qhov siab uas tuav tau; IBC 1014.6)
✅ 3. Kev Teeb tsa & Kev Tsim Kho
- Kev khi:
- Pob zeb ua vaj tse: ½” epoxy anchors (3″ embedment)
- Ntoo: ⅜” through-bolts + steel backing plates
- Qhov Sib Nrug Ntawm Lub Qhov Rooj: ≤1.5m (4.9 ft) rau 12 hli iav (↑ qhov ceev hauv thaj chaw cua hlob)
- Daim Ntawv Pov Thawj: Yuav tsum muaj cov ntawv qhia txog kev sim khoom ntawm ASTM E2353 sab nraud
⚠️ Kev Ua Txhaum Cai Uas Ua Rau Tsis Ua Tau Zoo
"3 qhov kev tshuaj xyuas saum toj kawg nkaus tsis ua tiav:"
- Cov iav tsis-tempered (tawg ua riam)
- Qhov sib txawv >100 hli (kev pheej hmoo ntawm kev ntes menyuam yaus)
- 304 SS kho vajtse xeb hauv qhov chaw ntub dej "
— Lub Koom Haum Saib Xyuas Kev Tsim Kho Hauv Tebchaws (NABI), 2024
