Sinceda umhlaba ukhula ukusukela ngo-1983

Umthamo wokulayisha komgangatho

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“Ndinike ifrum kwaye ndiza kuwuphakamisa umhlaba. - Archimedes. Ndikunike umgangatho, ungabamba ntoni? ”

Wonke umntu uyazi ukulayishwa okuphezulu kwemigangatho kwinkqubo yokunabela. Ingaba inkulu kangakanani? Sithetha ngedatha.

1. Ukubala okuqhelekileyo kokulayisha

Imigangatho ekhawulezileyo yahlulwe yohlobo lwe-B (uhlobo oluqhelekileyo) kunye nohlobo lwe-Z (uhlobo olunzima kakhulu), loo mbandela awukho ngaphantsi kwe-Q345. Iimpawu zecandelo zibonisiwe kule theyibhile ingezantsi.

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Ngokwe- "Ukucaciswa kwezobuchwephesha kukhuseleko lwedisk yokutshixa ityhubhu yesafula kulwakhiwo" (JGJ231-2010):

Ifomula yokubala 1: l0 = ηh

Ifomula yokubala 2: l0 = h '+ 2ka

Phakathi kwabo:

η2 - mgangatho wolungiso lomlingani 1.2;

h - umgama omde wokuhamba kwenqanaba eliphakathi le-scaffolding; (ixabiso lento ngokubanzi li-1500)

h '- elona nyathelo liphezulu lomgama wokukora kufuneka uncitshiswe ngepleyiti enye; (ixabiso lento ngokubanzi li-1000)

k - ubude bokucwangciswa kokunciphisa ubude be-cantilever, obekwe njenge-0.7;

a - umgama ukusuka kumgangatho ukuya kumgca osembindini wenqanawa kumgangatho ophezulu ukuya kwindawo yenkxaso yesiseko sejack jack. (Ubukhulu. 650mm)

Ubude bomgangatho obaliweyo lixabiso elikhulu, okt l0 = 1910mm

Umlinganiso wezinto: Uhlobo B λ = l0 / i = 119.3, Uhlobo Z λ = l0 / i = 94.6.

Ngokwe "JGJ231-2010 ″ isihlomelo D itafile D-2 Q345 yentsimbi kumbhobho axis xi icandelo uzinzo lomlingani e ingafunyanwa: Uhlobo B φ = 0.350, uhlobo Z, φ = 0.516.

Ke elona xabiso liphezulu livumelekile lokulayisha kuyilo lomgangatho omnye:

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2. Uvavanyo lokulayisha oluqhelekileyo

Idityaniswe neziphumo zobalo oluqhelekileyo, iRipid Scaffolding (Ubunjineli) Co., LTD. Ngokubambisana neYunivesithi mpuma, wenze uthotho lovavanyo lwezenzululwazi kunye nomthamo wokulayisha umthamo wediski yokutshixa.

Izicwangciso zovavanyo:

Ileja ubude be-1500mm, inyathelo lomgama we-1500mm, kunye ne-braces edibeneyo.

Iziphumo zovavanyo:

Uhlobo B: amandla okugqibela okuphela F = 396.3kn (4 imigangatho), elingana nobunzima beenqwelo mafutha ezingama-28 zosapho, umgangatho omnye ongu-99.1kn, olingana nobunzima beenqwelo mafutha ezisixhenxe zosapho.

Imodeli Z: amandla okugqibela okuphatha F = 546.0kn (4 standard), elingana nobunzima beenqwelo mafutha zosapho ezingama-40 ezinomgangatho omnye we-136.5kn, olingana nobunzima beenqwelo-mafutha zosapho ezili-10.


Ixesha Post: Jan-16-2020