Nyob rau hauv ib lub dav hlau yooj yim truss loads yog thov ntawm?

Cov txheej txheem:

Nyob rau hauv ib lub dav hlau yooj yim truss loads yog thov ntawm?
Nyob rau hauv ib lub dav hlau yooj yim truss loads yog thov ntawm?

Video: Nyob rau hauv ib lub dav hlau yooj yim truss loads yog thov ntawm?

Video: Nyob rau hauv ib lub dav hlau yooj yim truss loads yog thov ntawm?
Video: RUSIA-UKRAINE 20/8: UKRAINE TUA PUTIN TSHAV DAV HLAU KUB NYHIAB LOJ HEEV, HAIB TIAG2 2024, Hlis ntuj nqeg
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4. Loads nyob rau hauv trusses tsuas yog siv ntawm lawv cov pob qij txha.

Cov khoom siv rau ntawm lub truss nyob qhov twg?

Tag nrho cov loads rau lub truss yog taw tes loads thov ntawm cov truss pob qij txha; 3. Qhov hnyav ntawm cov tswv cuab truss yog me me piv rau cov khoom sib koom ua ke thiab lub zog axial sab hauv uas tuaj yeem nqa los ntawm cov tswv cuab. Raws li cov kev xav saum toj no, txhua tus tswv cuab truss tsuas yog thauj khoom ntawm nws qhov kawg thiab yog li txhua tus tswv cuab truss yog Ob Tus Tswv Cuab.

Yuav ua li cas yooj yim truss?

SIMPLE TRUSSES

Ib qho yooj yim truss yog a planar trussuas pib Ib qho yooj yim truss yog ib tug planar truss uas pib nrog ib daim duab peb sab thiab tuaj yeem nthuav tau los ntawm kev ntxiv ob tug mej zeej thiab ib tug sib koom ua ke. Rau cov trusses no, tus naj npawb ntawm cov tswv cuab (M) thiab tus naj npawb ntawm cov pob qij txha (J) cuam tshuam los ntawm kab zauv M=2 J – 3.

Yuav ua li cas truss yog M 2j 3?

In a yooj yim truss, m=2j - 3 qhov twg m yog tag nrho cov tswv cuab thiab j yog cov pob qij txha. Ib qho yooj yim truss yog tsim los ntawm successively ntxiv ob tug tswv cuab thiab ib tug kev twb kev txuas rau lub hauv paus daim duab peb sab truss. Nyob rau hauv ib qho yooj yim truss, m=2j - 3 qhov twg m yog tag nrho cov tswv cuab thiab j yog tus naj npawb ntawm cov pob qij txha.

Dab tsi yog dav hlau truss rog?

Txhua tus tswvcuab pw hauv lub dav hlau, thaum cov khoom nqa los ntawm lub truss, tsuas yog ntseeg zog uas ua rau cov pob qij txha thiab pw hauv tib lub dav hlau … Yog li cov rog ua yeeb yam ntawm txhua qhov kawg ntawm tus tswv cuab tsuas yog axial, tsis muaj lub sijhawm khoov lossis lub zog shear.

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