Isizathu sokuba izibane zesitalato zelanga zithandwa kakhulu kukuba amandla asetyenziselwa ukukhanyisa avela kumandla elanga, ngoko ke izibane zelanga zinempawu zentlawulo yombane. Zeziphi iinkcukacha zoyiloizibane zesitalato zelanga? Oku kulandelayo yintshayelelo yalo mba.
Iinkcukacha zoyilo zesibane sesitrato selanga:
1) Uyilo lokutyekela
Ukuze senze iimodyuli zeeseli zelanga zifumana imisebe yelanga kangangoko kunokwenzeka ngonyaka, kufuneka sikhethe i-angle yokuthambeka efanelekileyo kwiimodyuli zeeseli zelanga.
Ingxoxo malunga nokuthambekela okufanelekileyo kweemodyuli zeeseli zelanga zisekelwe kwimimandla eyahlukeneyo.
2) Uyilo olumelana nomoya
Kwinkqubo yesibane sesitalato selanga, uyilo lokumelana nomoya yenye yezona zinto zibalulekileyo kwisakhiwo. Uyilo olumelana nomoya lwahlulwe ubukhulu becala lube ngamacandelo amabini, enye luyilo olunganyangekiyo kuyilo lwesibiyeli semodyuli yebhetri, kwaye enye luyilo olunganyangekiyo ngumoya wepali yesibane.
(1) Uyilo lokumelana nomoya lwesibiyeli semodyuli yeseli yelanga
Ngokutsho kwedatha yeparameter yobugcisa bemodyuli yebhetriumenzi, uxinzelelo oluphezulu olunokumelana nemodyuli yeseli yelanga yi-2700Pa. Ukuba i-coefficient yokumelana nomoya ikhethwe njenge-27m / s (ilingana ne-typhoon yobukhulu be-10), ngokwe-non-viscous hydrodynamics, uxinzelelo lomoya oluthwalwa yimodyuli yebhetri yi-365Pa kuphela. Ngoko ke, imodyuli ngokwayo inokumelana ngokupheleleyo nesantya somoya se-27m / s ngaphandle komonakalo. Ngoko ke, isitshixo sokuqwalasela kuyilo ludibaniso phakathi kwebhakethi yemodyuli yebhetri kunye nesibane sesibane.
Kuyilo lwenkqubo yesibane sesitrato esiqhelekileyo, uxhulumaniso phakathi kwesibiyeli semodyuli yebhetri kunye nesibane sesibane senzelwe ukulungiswa kunye nokuxhunywa ngepali ye-bolt.
(2) Uyilo lokumelana nomoya weipali yesibane sesitalato
Iiparamitha zezibane zesitalato zimi ngolu hlobo lulandelayo:
Utyekelo lwepaneli yebhetri A=15o ubude bepali yesibane=6m
Yila kwaye ukhethe ububanzi be-weld ezantsi kwepali yesibane δ = 3.75mm ipali yokukhanya ezantsi idayamitha engaphandle=132mm
Umphezulu we-weld ngumgangatho owonakalisiweyo wepali yesibane. Umgama ukusuka kwindawo yokubala i-P yomzuzu wokumelana W kumphezulu wokungaphumeleli kwepali yesibane ukuya kumgca wentshukumo wepaneli yebhetri yesenzo somthwalo F kwipali yesibane
PQ = [6000+ (150+6)/tan16o] × Sin16o = 1545mm=1.845m。 Ke ngoko, umzuzu wesenzo somthwalo womoya kwindawo yokungaphumeleli kwepali yesibane M=F × 1.845.
Ngokoyilo oluphezulu lwesantya somoya esivumelekileyo se-27m/s, umthwalo osisiseko we-30W wentloko yesibane yesibane sesitalato esiphindwe kabini yi-480N. Ukuqwalasela ukhuseleko lwe-1.3, F = 1.3 × 480 = 624N.
Ngoko ke, M = F × 1.545 = 949 × 1.545 = 1466N.m.
Ngokutsho kokutsalwa kwezibalo, umzuzu wokumelana nokusilela kwe-toroidal umphezulu W=π × (3r2 δ+ 3r δ 2+ δ 3).
Kule fomula ingentla, r yidayamitha yangaphakathi yeringi, δ Ngaba ububanzi beringi.
Umzuzu wokumelana nokusilela komhlaba W=π × (3r2 δ+ 3r δ 2+ δ 3)
=π × (3 × amakhulu asibhozo anamashumi mane anesibini × 4+3 × amashumi asibhozo anesine × 42+43) = 88768mm3
=88.768 × 10－6 m3
Uxinzelelo olubangelwa yintshukumo yomzuzwana womthwalo womoya kumphezulu ongaphumeleliyo=M/W
= 1466/ (88.768 × 10－6) =16.5 × 106pa =16.5 Mpa<<215Mpa
Apho, 215 Mpa ngamandla ukugoba Q235 intsimbi.
Ukugalelwa kwesiseko kufuneka kuhambelane nemigaqo yokwakhiwa kokukhanya kwendlela. Ungaze usike iikona kwaye usike izinto ukwenza isiseko esincinci kakhulu, okanye iziko lobunzima besibane sesitalato liya kuba lingazinzile, kwaye kulula ukulahla kwaye kubangele iingozi zokhuseleko.
Ukuba i-angle inclination yenkxaso yelanga yenzelwe ukuba inkulu kakhulu, iya kwandisa ukuchasana nomoya. I-angle efanelekileyo kufuneka iyilwe ngaphandle kokuchaphazela ukuchasana komoya kunye nesantya sokuguqulwa kokukhanya kwelanga.
Ngoko ke, nje ukuba ububanzi kunye nobukhulu bepali yesibane kunye ne-weld ihlangabezana neemfuno zokuyila, kwaye ukwakhiwa kwesiseko kufanelekileyo, ukuthambekela kwemodyuli yelanga kunengqiqo, ukuchasana komoya kwesibane akukho ngxaki.
Ixesha lokuposa: Feb-03-2023
