A trapezoidal footing, uas tej zaum yuav yog siv los nqa ob kab ntawm cov khoom tsis sib xws thaum nyob deb sab nraud ntawm kem ntawm qhov hnyav tshaj plaws yog txwv. Trapezoidal footings yog siv nyob rau hauv rooj plaub uas cov loads tsis sib npaug. Trapezoidal footings feem ntau yog siv rau cov tsev nyob thiab cov tsev.
Yuav ua li cas yog tus qauv ntawm trapezoidal footing?
luas=1.5 x 1.5=2.25 m. Luas A2=0.8 x 0.8 m=. 64m ua.
ht=0.3m.
Yuav ua li cas yog hom ko taw sib txawv?
Cov ntau hom footings siv hauv kev tsim kho tau piav qhia hauv qab no:
- Nruam Phab Ntsa Footing. Cov footing uas txhawb nqa ntev masonry los yog RCC phab ntsa yog hu ua ib tug nruam footing. …
- Ntseeg Footing. …
- Txhob Cia Siab. …
- Txiv kab teg. …
- Strap Footing. …
- Raft Footing. …
- Pib Footing.
Koj ua li cas xam trapezoidal footing hauv BBS?
Ua raws li cov ntsiab lus tau txais los ntawm cov duab kos thiab cov lus qhia:
- Length of Footing=X.
- qhov dav ntawm taw=Y.
- Qhov siab ntawm ko taw (Thickness)=h.
- Txoj kab uas hla ntawm lub Main reinforcement bars=d. …
- Txoj kab uas hla ntawm Distribution Reinforcement Bars=d. …
- Qhov sib nrug ntawm qhov cuab lub zog=s.
Koj pom lub hauv paus trapezoidal li cas?
Rectangular Footing
- Nkag siab ntev (A) ntawm lub kaum sab xis.
- Nkag siab (B) ntawm lub kaum sab xis.
- Area (A1)
- Ntaus Length (a) ntawm Upper rectangular.
- Tau qhov dav (b) ntawm lub Upper rectangular.
- Area (A2)
- Nkag mus rau qhov siab ntawm lub trapezoid. Qhov siab (h) in meter.
- Square cag ntawm A1A2.