Mehaniki proraun Al-Fe ueta s kosim rasponom

Izmjere i djelovanja1. Izmjere i djelovanjaProraun nije primjeren za krute lananice (kratko debelo ue).16/2,525/435/644/3250/850/3070/1295/1595/55105/75120/20PLparabolina lananicaHiperbolina lananica = jednoliko optereenje je rasporeeno po duljini ueta.120/70HLhiperbolina (obina) lananica125/30Temperaturea) Izmjere150/25-20NAJVEE SKRAENJE DULJINERasponL =40.000mkosi raspon170/40-5NAJVEE OPTEREENJE OD LEDA I VJETRA + KRATKI SPOJVisinska razlika leajevah = f1 - f2 =2.000m185/3040NAJVEE PRODULJENJE BEZ DODATNOG OPT.210/3560KRATKI SPOJb) Proizvodi210/50UeAl-Fe490/65230/30IC G1100.4AlFeAl/Fe240/40IC G2200.45Nazivni presjek ueta49065mm265/35IC G3300.5Raunski presjek490.363.6mm7.71300/50IC G4400.55Gustoa27007780kg/m305/40IC G5500.6Modul elastinosti70000200000MPa0.35340/30IC G6600.6Ekvivalentni modul elastinosti84927MPa360/57Toplinski koeficijent linearnog istezanja2.30E-051.15E-051/C360/57*Ekvivalentni toplinski koef. lin. istezanja1.99E-051/C380/50385/35Promjer uetad =30.6mm435/55Masa ueta (neto)m =1868kg/km450/40490/65Raunska prekidna silaFmax =152915N495/35Koeficijent sigurnosti za ueue =10.0510/45Iskoristivost ueta u tjemenuktjeme =78%550/70Doputena sila u uetu560/50U tjemenuFdop,tj. =11927N570/40Na leajuFdop,[A/B] =15292N650/45Doputeno naprezanje u uetu21.5 MPa680/85c) Djelovanja1. StalnoVlastita teina uetague =18.68N/mDodatni teret+15%gDOD =2.80N/mgST = gue + gDOD =21.48N/m2. LedRazred glatkog ledaIC G2tLED =20mmPromjer zeleenog uetadLED = d + 2 tLED =70.6mmMasa ledaLED =900kg/mTeina ledaqLED =28.61N/m3. VjetarSrednja brzinavm(z) =22.8 m/s(I. podruje djelovanja vjetra)vjetar Koeficijent oblikacf =1.2w1 =28.15N/mbez ledaw2 =64.95N/ms ledomd) Kombinacije djelovanjaKombinacijaST[uee]LED[uee]Wi-2[uee]qiii%%%N/m1100%--21.480.0243%57%-50.100.0337%-63%35.4152.74a40%53%8%52.1816.34b36%24%40%46.2139.2

&L&9&Uljustina.net63.netw1,2gSTgLEDqii[A][B'][B][C]LL'f2ff1hvjetar

Provjes2. ProvjesKritini raspon22.302mFiktivni ref. raspon63.809mReferentna temperaturatref =-5CReferentna duina uetaReferentno optereenjeqref =50.10N/mSref =40.097mReferentni provjes2.141mtL'HJed. stanjaProvjes, f1Provjes, fReakcija AReakcija BR/Fdop,[A/B]Kombinacija[C][m][N][MPa][m][m][N][N][%]1. ST-2069.63263660.00002.0480.6776410636742%-565.34154440.00002.1090.7925489544636%4058.71640210.00002.3071.0734070402727%6057.04936630.00002.3921.1793714367124%2. ST+LED-2067.038135450.00002.0800.742136491354989%-563.808119270.00002.1410.843120341193479%3. ST+W1-2068.23199970.00002.0640.71110070999966%-564.53886890.00002.1250.8188764869457%4058.45865360.00002.3191.0886618654743%6056.87059740.00002.4021.1916059598840%0.723m4a. ST+LED+W2-2066.886140300.00002.0830.746141391403492%(led prevladava)-563.713123750.00002.1430.847124861238282%4b. ST+LED+W2-2067.328126280.00002.0760.734127241263183%(vjetar prevladava)-563.992110860.00002.1370.837111851109273%0.648mKad je L'/2 > L najnia toka ueta je u donjem leaju.

&L&9&Uljustina.net63.net

Reakcije3. ReakcijeBroj uadi2komtHRAVAWARBVBWBKombinacija[C][N][N][N][N][N][N][N]1. ST-20127311281914990127332230-510888109781408010892315040804181401267080544570607325742812310734249302. ST+LED-20270902729833670270986490-52385324068320602386781103. ST+W1-2019995201411469192619999253331-517378175291390182217387332435401307213237126116531309546360760119481211812271609119764976524a. ST+LED+W2-202806028278335998028069657192(led prevladava)-524749249733201934247648162384b. ST+LED+W2-2025256254472416197325262454370(vjetar prevladava)-522172223702297187622184573468

&L&9&Uljustina.net63.net

NormaPovrina poprenog presjekaNazivni presjekRaunski presjekKonstrukcijaTeinaAl/Fe uadmmOdnospresjekaAlmmFemmUkupnommKonstrukcijaAlbrojslojevaKonstrukcijaFePromjerueta mmTeina Alkg/kmTeina Fekg/kmNetokg/kmRaunskaprekidnasila (N)Max. otporna 20C/km25/4254623.84.027.86x2,2511x2,256.865.431.09790301.200105/75105751.4105.775.5181.514x3,10119x2,2517.5291.9594.19071066350.274Norma:120/20120206121.619.8141.426x2,4427x1,9015.5335.3155.6496448850.237DIN 48204120/70120701.7122.071.3193.312x3,6017x3,6018.0337.1558.6913981950.236BS 215125/30125304.3127.929.8157.730x2,3327x2,3316.3353.2234.0595578000.226ASTM B 232150/25150256148.924.2173.126x2,7027x2,1017.1410.5190.1607543150.194HRN N. C1.35416/2,5162.5615.32.517.86x1,8011 x1,805.441.819.96258251.878170/40170404.3171.840.1211.930x2,7027x2,7018.9474.3314.2798770400.168185/30185306183.829.8213.626x3,027x2,3319.0506.8234.0748662250.157210/35210356209.134.1243.226x3,2027 x 2,4920.3576.6267.2852749500.138210/50210504.3212.149.5261.630x3,027x3,0021.0585.5387.9986922750.136230/30230307.7230.929.8260.724x3,5027x2,3321.0636.5234.0878730300.125240/40240406243.039.5282.526x3,4527 x 2,6821.8670.2309.6990864600.119265/35265357.7263.734.1297.824x3,7427 x 2,4922.4726.8267.21003829550.109300/50300506304.349.5353.726x3,8627x3,0024.4839387.912391051200.949305/40305407.7304.639.5344.154x2,6837x2,6824.1841309.61160993050.949340/303403011.3339.329.8369.148x3,0037x2,3325.0936234.01177925050.08535/6356634.35.740.06x2,7011 x 2,708.194.244.7140126600.835360/57360576360.256.3416.526x4,2027x3,2026.4993.3441.414491252450.080360/57*360576360.257.3417.526x4,20219x1,9626.6993.3450.814681252450.080380/50380507.7382.049.5431.554x3,0037x3,0027.01053.9387.914541209900.076385/353853511.3386.034.1420.148x3,2037x2,4926.71064.9267.213411043150.075435/55435557.7434.356.3490.654x3,2037x3,2028.81199.0441.416541362750.05944/3244321.444.031.775.714x2,0017 x 2,4011.2121.5248.3378455000.657450/404504011.3448.739.5488.248x3,4537 x 2,6828.71237.8309.615571201950.064490/65490657.7490.363.6553.954x3,4037x3,4030.61353.6498.318681529150.059495/354953515.3494.134.1528.245x3,7437 x 2,4929.91363.6267.216391202800.05850/3050301.751.229.881.012x2,3317x2,3311.7141.2234.0383442250.56450/8508648.38.056.36x3,2011 x3,209.6132.262.7196171400.595510/455104511.3510.245.3555.548x3,6837x2,8730.71408.4355.017751342950.057550/70550707.7550.071.3621.354x3,6037x3,6032.41517.5558.620941675300.051560/505605011.3561.749.5611.248x3,8637x3,0032.21549.5387.919501463000.051570/405704014.5565.539.5610.345x4,0237x2,6832.21575.4309.618951380000.051650/456504514.5653.245.3698.545x4,3037x2,8734.41802.5355.021691555500.044680/85680857.7678.886.0764.854x4,00319x2,4036.01873.5676.025732100550.04370/127012669.911.481.326x 1,8527x 1,4411.7192.789.4285263150.41395/159515694.415.3109.726x2,1527x1,6713.6260.3120.2384351400.30695/5595551.796.556.3152.812x3,2017x3,2016.0266.3441.4722802000.299

&L&9&Uljustina.net63.net

VjetarOsnovno djelovanje vjetra prema visini, podruju i zemljitu[HRN ENV 1991-2-4]KTGZEMLJITEkrz0zminI22IOtvoreno more ili jezero0.170.012II30IIOgraeno poljoprivredno zemljite0.190.054III35IIIPredgraa gradova0.220.308IV40IVGradska podruja0.241.0016V50Podruje djelovanja vjetraIZemljiteIIOgraeno poljoprivredno zemljiteNadmorska visina125Visina iznad tlaz =9.0 m(srednja)gustoa zraka1.25 kg/mPoredbena brzinavref,10 =22.0 m/sKoef. nadmorske visine1.05Poredbeni tlak0.33 kPaKoef. izloenosti2.29Koef. hrapavosti0.99Nagib padine0.05s =0 IzmjereKoeficijent orografijeco =1.00Srednja brzina vjetra22.8 m/s(82 km/h)Koeficijent oblikacf =1.20Djelovanje vjetraw = qref ce(z) cf =0.92 kPa

&L&9&Uljustina.net63.net Izmjere

MBD00009E71.unknown

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