Cov txheej txheem:

Yuav ua li cas koj xam point load?
Yuav ua li cas koj xam point load?

Video: Yuav ua li cas koj xam point load?

Video: Yuav ua li cas koj xam point load?
Video: Yuav ua li cas nrog koj daim ntawv pov npav tom qab koj xa mus 2024, Kaum ib hlis
Anonim

A point load yog qhov sib npaug thauj khoom siv rau ib leeg taw tes , uas koj tuaj yeem txiav txim siab los ntawm xam tag nrho thauj khoom tshaj qhov khoom nto los yog ntev thiab attributing tag nrho thauj khoom mus rau nws qhov chaw. Txiav txim siab tag nrho qhov ntev lossis cheeb tsam uas a thauj khoom yog siv.

Ib yam li ntawd, koj tuaj yeem nug, ua li cas koj suav beam load?

Standard 2-by-12 beams ntawm 16-nti chaw yog siv los ncua 15 ko taw

  1. Xam qhov hnyav lub nqaj yuav tsum txhawb nqa.
  2. Xam lub sijhawm khoov siab tshaj plaws rau cov kab ntoo.
  3. Xam cov nqaj ntawm seem modulus los ntawm kev faib lub siab tshaj plaws khoov lub sij hawm los ntawm kev tso cai fiber ntau rau cov kab ntoo.

Ib yam li ntawd, koj ua li cas xam cov load? Noj tag nrho thauj khoom thiab faib nws los ntawm qhov siab tshaj plaws pom zoo thauj khoom kom tau ib feem pua. Piv txwv li, yog tias tag nrho thauj khoom ntxiv txog 800 watts thiab qhov no yog 20 amp Circuit Court, ces tus thauj khoom kev siv yog 800 watts muab faib los ntawm 1920 watts uas sib npaug 0.416 lossis 42 feem pua.

txhais li cas los ntawm point load?

Hauv kev lag luam engineering, a point load yog a thauj khoom siv rau ib leeg, tshwj xeeb taw tes nyob rau ntawm ib tug qauv. Nws tseem hu ua a concentrated load , thiab ib qho piv txwv ntawm nws yuav yog ib tug rauj ntaus ib tug ntsia hlau rau hauv ib lub nqaj.

Dab tsi loj beam kuv yuav tsum tau ncua 10 ko taw?

Thaum txhawb joists tias ncua 12 ko taw nrog tsis muaj overhang dhau ntawm lub nqaj , ib ob ply beam tau span hauv ko taw tus nqi sib npaug rau nws qhov tob hauv inches. Ib ob 2 x 12 beam tau span 12 ko taw ; ib (2) x 10 tuaj yeem ncav cuag 10 feet thiab lwm yam.

Pom zoo: