Gate Design Calculation

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  submerged gateinput variables Ȣ(specifc weight o water)9.81kn/m^2number o beam (n)5 (span o si!e sea )5.25m#(ma$imum hea! water on si )9.%5mro er span&.5mh (gate sea ing height)&.'mh15.5mh (min !epth o tai water)%m upstream water thrust(Wm) 128*.%'*+, Em 1.589&'m!ownstream water thrust%-% resu tant water thrust ()128*.%'*+,01.589&'mbeta&.19&52*k12&'5!epth (#k)5.5*.2%51*1*5*.88&2&8.'*9**%%''19.%5posion o horionta beams5.5.8'&12'*.5'118.1**85*8'%58.**9**pressure55.'25*.12&2&*&.98&198%.22'*85'15'8.%1&85 oa!s18.&'2&&25.&5*89525*.918&25*.**5%8151&259.5&8 ength o each segment1.19&12'%.9529&%.&2'81829%.59%119ben!ing moment o beams3%31323&3''%.*2&9*1.1*2%&955.'19'5.&8829911125.*992*'%*2.&9*11*2.%&955'19.'5&88.299111221*5*99.2*  %%m9.%59.%5m88.*8%588.*8%5kpa%128*.%'*+,%.282%2&m353%+,.m%,m  sma est si!e%.5u mate stress (mpa)'12.%2actor o saet4'a owab e stress (mpa)1%&.%%5rectangu arp ate thickness%.%11!iision12&'mi!point rom hea!.2'8158121**.19&9295*.859*&&*'98.'*291*19&a%.5%.5%.5%.5b1.19&12'&'%.9529&'1'%.&2'81829%.59%118*%5b/a2.&92&2'881.&9%588281.2*2'9&591.18%2&*'11+1$2&252525+1411.5*.5*.88+'4&'.&&'.&&'.&&'.&+&$'.55%5%5%pressure%.%129''&12%.%*%5*2***%.%**1%&9881%.%8&119&18+1$ stress29.12*5189'&&.'5288%'5&9.82''%12&'2.9&&5&185+14 stress1'.5&*59'*&11%.9&58'1&12.'258'9&18'1&.*&8*&%19+'4 stress'&.'&*995'5%.%1&&519*5'.'18*58'8*58.9%'8%5*+&$ stress58.8882''822*2.9%5*%89*9.5288%2'85.8*%&*1&.%&1&989&815.%%'%%5591.&9252*5'1*.*1''1*11*.'*&''*921.8*1*282*2&.8958'%*&825.*%11911 horizantal beam secon500*200*111! 5%%2%%%.%%212%8&2&m&6%.%%%'891*&8m'12&'stress on beam19219995.182&&5585'2.&&2%2592.&'&12258*81.'19.219995182&&.5585'2&&2.%2592&'&22.58*81'!ecisionokokokokp ate thickness in 331%hea! to gate center*.&5a owab e ben!ing stress28%.1*& number o horizontal girders &.89&982&9&2 web thic#ness water oa! on the gir!er()web !eptha owab e shear stress web thic#ness 12.5  web stabilt$ tensi e stress1&compression stress7111shear stress&'k1rectang e heightk2eu er reerence stress(mpa)29.%9&&*%125note( ength 6n mm)i!ea buck ing stressescompression95.&&15'shear2%*.&*1%**1a pha1.51711121&71.2252252252greatest shear stress(:)&'crica compression stress51'.591529*see tab e 5.9229.8p ate buck ing saet41.82882*&*resu tsae
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