Cov txheej txheem:
Video: Dab tsi yog qhov taw qhia ntawm pob zeb pob zeb?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
A ko taw yog muab tso rau hauv qab kab Frost thiab tom qab ntawd cov phab ntsa ntxiv rau saum. Cov ko taw yog dav dua phab ntsa, muab kev txhawb nqa ntxiv ntawm lub hauv paus ntawm lub hauv paus. Lub hauv paus T-shaped yog muab tso rau thiab tso cai rau kho; thib ob, cov phab ntsa yog tsim; thiab thaum kawg, cov slab yog nchuav ntawm phab ntsa.
Hais txog qhov no, puas yog slab ntawm qib muaj footings?
Pob zeb slab-on-qib pem teb feem ntau yog tsim los rau muaj muaj zog txaus los txhawb nqa hauv pem teb yam tsis muaj kev txhawb nqa thaum nchuav rau ntawm cov av tsis muaj kev cuam tshuam los yog compacted. Qhob kis ko taw yuav tsum muab kev txhawb nqa hauv qab cov phab ntsa hauv qab thiab kab.
Kuj Paub, dab tsi yog qhov zoo tshaj plaws puag rau pob zeb slab? Subgrade thiab subbase yog lub hauv paus ntawm lub pob zeb pob zeb thiab ua lub luag haujlwm tseem ceeb hauv nws qhov kev ua tau zoo. Raws li ACI Code, cov subgrade yog ib qho kev cog lus thiab txhim kho cov av zoo dua los yog coj mus rau hauv qhov chaw subbase yog ib txheej ntawm pob zeb muab tso rau saum lub subgrade.
Ib yam li ntawd, koj tuaj yeem nug, yuav ua li cas cov pob zeb tso rau hauv footings thiab slabs?
Qhob footings thiab pem teb slab yog ces nchuav uas feem ntau yuav siv a pob zeb twj tso kua mis pob zeb rau hauv txoj hauj lwm. Cov ko taw yog txhawb cov phab ntsa. Ib zaug lub slab ua tau tso down, nws yuav tsum tau qee lub sij hawm los kho (qhov no yog los xyuas kom meej lub hauv paus muaj zog rau lub tsev).
3 hom foundations yog dab tsi?
Hauv qab no yog ntau hom foundations siv hauv kev tsim kho:
- Lub hauv paus loj. Ib leeg footing lossis cais footing. Ua ke footing. Sawb foundation. Raft los yog lev foundation.
- Deep Foundation. Pile foundation. Drilled Shafts los yog caissons.
Pom zoo:
Yuav ua li cas yog qhov tsawg kawg nkaus pob zeb npog nyob rau hauv mm ntawm ib tug cam khwb cia nyob rau hauv qhov chaw pob zeb tso tawm tsam thiab mus tas li raug rau lub ntiaj teb?
Table-1: Yam Tsawg Npog Thickness rau Cast-in-Place Qhob Hom kev tsim ua vaj tse hla, hli Qhob nrum tiv thaiv thiab txuas mus tas li nrog hauv av 75 Pob zeb sib chwv nrog av lossis dej No. 19 txog No. 57 tuav 50 No. 16 bar thiab me dua 40
Dab tsi yog qhov siab tshaj plaws rau lub pob zeb pob zeb?
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