Anyị na-enyere ụwa aka ito kemgbe 1983

Ibu ikike nke ọkọlọtọ

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“Nye m otu fulcrum, m ga-ebulikwa ụwa. - Archimedes. Nye gị ụkpụrụ, gịnị ka ị ga-ejide? ”

Onye ọ bụla maara ikike dị elu nke ụkpụrụ nke usoro ihe eji arụ ọrụ. Olee otú o nwere ike ịbụ? Anyị na-eji data ekwu okwu.

1. Standard loading ngụkọta oge

E kewara ọkọlọtọ ngwa ngwa n'ụdị B (ụdị ọkọlọtọ) na ụdị Z (ụdị ọrụ dị arọ), ihe ahụ abụghị ihe na-erughị Q345. E gosipụtara njirimara nkebi na tebụl dị n'okpuru.

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Dị ka “Nka na ụzụ nkọwapụta nke nchekwa nke diski mkpọchi ígwè tubular scaffold na-ewu” (JGJ231-2010):

Nchịkọta usoro 1: l0 = ηh

Nchịkọta usoro 2: l0 = h '+ 2ka

N'etiti ha:

η - ọkọlọtọ mgbazi ọnụọgụ 1.2;

h - uzo kachasị dị n'etiti etiti oyi akwa nke scaffolding; (ihe niile dị uru bụ 1500)

h '- uzo kachasị elu nke scaffolding kwesịrị belata site na otu efere; (ihe niile dị uru bụ 1000)

k - gbakọọ ogologo Mbelata ọnụọgụ nke cantilever ọgwụgwụ, setịpụrụ dị ka 0,7;

a - anya site na ọkọlọtọ ruo na etiti nke eriri na elu ụlọ ruo ebe nkwado nke nkịta nwere ike imegharị. (Max. 650mm)

Standardkpụrụ agbakọtara nke ọkọlọtọ bụ nnukwu uru, ya bụ, l0 = 1910mm

Akụkụ akụkụ: Typedị B λ = l0 / i = 119.3, Pịnye Z λ = l0 / i = 94.6.

Dabere na "JGJ231-2010 ″ mgbakwunye D table D-2 Q345 nchara anwụrụ axis mgbali akụrụngwa nkwụsi ike ọnụọgụ φ nwere ike nweta: Typedị B φ = 0.350, Z ụdị,, = 0.516.

Mgbe ahụ ikike kachasị ikikere ịhazi otu ụkpụrụ:

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2. Standard loading ule

Ejikọtara ya na nsonaazụ nke ọkọlọtọ ọkọlọtọ, Rapid Scaffolding (Engineering) Co., LTD. ya na Mahadum Ndịda Ọwụwa Anyanwụ, emeela usoro nyocha nke sayensị na nke nyocha nke ikike ibu nke ihe mkpọchi diski.

Ntọala Ule:

Ledger ogologo 1500mm, nkwụsị anya 1500mm, yana mgbatị zuru ezu.

Nsonaazụ nnwale:

Bdị B: ikike kachasị dị na F = 396.3kn (ụkpụrụ 4), nke yiri ibu nke ụgbọ ala ezinụlọ 28, otu ọkọlọtọ 99.1kn, nke yiri ibu nke ụgbọ ala ezinụlọ 7.

Model Z: kacha amị ikike F = 546.0kn (4 ọkọlọtọ), Ẹkot arọ nke 40 ezinụlọ ụgbọ ala na otu ọkọlọtọ 136.5kn, Ẹkot arọ nke 10 ezinụlọ ụgbọala.


Post oge: Jan-16-2020