2019年整理筑龙题库-钢结构

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1ஹ
☢᫡Ḅᩩ4.2.3ᡠ
☢᫡ᩞQ235BF,ᵨE43ᩩ
ᵯ!"#$%ᵨ&'(஺☢*+,-M=10X
kN-m./01234V=225kN./012஺4.2.3r☢᫡⌕607Ḅ2ஹḄ8907ᩩ:*+;<=4Ḅ'☢400x20,Q345>?@ABCᵨDᔣ?᝞4.6.1ᡠ஺"#G!H⊤☢JKLMNO
஺'*+PQ₹S⚜UVWXᦪn=lgX₹S᪗[1Nmax=1350kN,N,„i,>=0,₹S/01N=1800kN஺-400x20⌕6KL8907஺3ஹ,ஹ=ஹ3\ᵨ]Ḅ^_@`᪝᥅c.G2

1ᩩ᝞4.2.62ᡠ
☢efghijᵨ^_@`᪝᥅c஺ᩞᧇQ235,`᪝10.9!M20,l☢ᵨmṺopq┤ᜐᳮM=l00kNm,F=400kN,N=200kN,F=400kN4.2.62.ᓫv:mm
⌕6x%7y`᪝zᔲ|}⌕6஺4ஹ_~ᥛ᪾e;ᦪ07ᩩ:ᓫᓫ᣸᝞4.5.25ᡠ஺e⚔hD᫡ehẠ஺e^6000mm,eᵨHHN500x200x10x16,A=11420mm2,1=4.78xl08mm4,i=205mm,ᩞ"Q235-B,ᙠ᣸☢xG~ᥛeᐸ^@᪀⌼ᙳh᣸e~ᥛeA*+₹S~ᥛ᣸\ᵨ⌱ᵨ~ᥛeHN450xl50x9xl4,1=2.7lxl0«^mm1.5.25᣸~ᥛ⌕6ᑨy~ᥛeḄ_¡¢%7ᐸ;*S4஺

25ஹᨵ¤᪾eḄ07?@.G2ᩩ᝞4.5.7ᡠᨵ¤᪾eᔜᩚ§ឋ-஺4.5.7⌕6©eAஹeBN☢ᑁḄ07?@mm
6ஹijhefgᵨ«¬`᪝.,2ᩩ4.2.49ᡠ஺Ḅ₹Sᙳ/01`᪝M20,ᵨQ235ᩞ஺280kN⚔Vᡲ4.2.49⌕6%7_@7ஹG
☢Ḅ®~¯᫡᝞⚪☢±ᡷ³஺ᵨQ2353´2ᩞ஺@12.75m஺µ¶·~¸4.25mᜐ~*X᫡.Ꮇ

3ᙠyᜐº\¯᫡Ḅᔣ~»)X½¾ᑮ¯½ÀḄÁÂ4Ã₹S/01P=220kN,¯᫡ÄP/01Å2.OkN/m,☢☢ÆA=156.8xl02mm2,☢§ឋ-h=264876x1OZinr1,☢☢Æ-S=2951xlOXinR☢Çᢙ-Wnx=Wx=5133xIG'mn?,☢§ឋµiy=48.5mm஺%7¯᫡ᢙ3_@ɯ᫡Ḅᨬᜧ3Ì4()»Aஹ32.4N/mm2Bஹ39.4N/mm2C..42.6N/mm2Dஹ46.7N/mm28ஹ%7X᫡᦮Ðᩩ:NÑX᫡NÑÒ'AhX᫡ᱞX᫡@5m,☢HN35O*175x7x11,ᩞQ235*+ḄÔ₹S/01q=34.35(kN/m)«⌕6%7y᫡᦮Ð9ஹᢥ᪀⌼⌕6©Öᨬ×ØÙÚ⌕6᝞4.2.32ᡠ᪀Û;eeᜮᐸOÝÞ^he=380mm,ß᝞=16mm,ᩞQ235BF,ᩩE43
☟᝱/0₹SN=995kN,ᢥ᪀⌼⌕6©OÝÞhâ'ḄÖᨬ×ØÙÚh(mm)ofmin

44.2.321()ஹeØḄØÙÚᩩ4.2.33ᡠeØãÂ4₹SN=200kN,ᩞᵨQ345B,E50ᩩ
஺äåZOON/mmL4.2.33⌕607æNçèéḄØÙÚhr

511ஹêê᪾eḄ07?@ᦪᩩ4.5.12Gêêë☢ᨵ¤᪾᫡eᙳeØì஺᫡ஹe☢ÙÚe1H300x200x6x8íe2H400x200x6x10íe3H300x200x6x8íe4H400x200x6x10í᫡1H300xl80x6x8í᫡2H250x150x6x8»᫡?lb=7.2m,e^k=4.5m஺4.5.12⌕6I.©ᔜeᙠ᪾N☢ᑁḄ07?@ᦪ஺2.î᪾N☢ᑁᙠ᫡ïᨵº☠Ḅ~*»±¤᪾©ᔜeN☢ᑁḄ07?@஺12ஹñῳeḄeØ/0ᩩG;<+ñῳe;<4/01N=1300kN,e☢ÙÚ᝞4.2.35ᡠᩞQ235஺

6⌕6eØ/013ஹG
☢Ḅ®~¯᫡᝞⚪☢±ᡷ³஺ᵨQ2353´2ᩞ஺@12.75m.µ¶·~¸4.25mᜐ~*X᫡.Ꮇᙠyᜐº\¯᫡Ḅᔣ~»2X½¾ᑮ¯½ÀḄÁÂ4Ã₹S/01P=220kN,¯᫡ÄP/01Å2.OkN/m.☢☢ÆA=156.8x102mm2,☢§ឋ-h=264876x104mm",☢☢Æ-S=2951xOmm?,☢Çᢙ-Wnx=W*=5133x☢§ឋµi
=48.5mm஺%7¯᫡Ḅ᦮ÐឋÉḄᨬᜧÌ4.2஺Aஹ195.6N/mm2Bஹ201.8N/mm2

7rCஹ204.4N/mm2Dஹ206.3N/mm214ஹóïô;<+eḄ᦮Ð%7ᩩ᝞4.3.16(a)ᡠõ᪀óïôḄ;<+eAB஺eᡠ*+Ḅ4/01N=l()()0kN,eḄ?@4.2m஺ᙠe☢Ḅ_;N☢ᑁᨵ~ᥛö÷øùeḄ»ᙠABCDḄN☢ᑁúpᔣv¤(û4.3.16(a))஺e☢
ᐹᨵᑴ·fgᐸÙÚfg2—10x220,ῳ'1—6x200(û4.3.16(b))஺eᵫQ235-Aᑴ\஺4.3.16⌕6%7᦮Ð15ஹ©T☢ᩚᩩ:ÿḄᩚl()=l500mm,lo3000mm,N=800kN஺ᵨᡂT☢("4.3.22),x⁚$%&'12mm,ᩞ'Q235B஺

8"4.3.22⌕+,-./0ᩚḄ☢஺16ஹ23ᩚḄ4᪝67(83)ᩩ:,"4.2.46(a)ᡠ<=2>⁚$AḄ67᝞"4.2.46(b)ᡠ<஺"@2ஹῳ%B⁚$%CᙠEᔆGᡂ᦮IᙠEᙢKLMNOPḄQᡲᜐᯠUᵨ4᪝VP67ᡂ᦮I஺ᩞQ235,CWXY4ZM22஺"4.2.46[ᓫN:m⌕+,^_67Ḅ4᪝`ᔲbᐰ஺17ஹdefYghᢞᙠj᪾Ygl8m,mn'o⍝@q'ᔂᧇBtᧇᜓv᪀tx᝞⚪"ᡠ<஺Ygv᪀ᵨQ253B஺zEG7{ᵨE43|ᵯGᩩ⌕+G~CW'W஺

9ᐵO⍝᫡(B3)V᫡(Bl)Ḅ67-ᵨ2ᑡ()67`Ḅᐸᳮᵫ஺<,⍝᫡V᫡7₹஺Aஹ┑67BஹG767Cஹ4᪝᥅|67Dஹ4᪝|6718ஹᨵ3ᩚḄ

10ᩩ:,"4.3.6<-ᨵ@WT.£ᑴK¥Ḅᔆj=Ḅ3ᩚ.☢'2|_100X10,ᨵ¦┯᣸ᑡḄXY4᪝©ª-20mm02L100X10«=3.05cm.4.52cm,/=215ஹ/mm2,Ḅ&'10mrnᩞ'Q23$.o⌕+,-03ᩚᡠ®Ḅᨬᜧ3±²³´ᑮḄᨬᜧ஺☢τ☢(/>)"4.3.619ஹdefYghᢞᙠj᪾Ygl8m,mn'o⍝,@q'ᔂᧇBtᧇᜓv᪀tx᝞⚪"ᡠ<஺Ygv᪀ᵨQ253B஺zEG7{ᵨE43|ᵯGᩩ⌕+G~CW'W஺

11Q⍝᫡(B3)ᙳt₹BᔂᧇᜓḄ₹ᐸᨬᜧ¸¹Mx=450kNmºᵨ»¼H|H60()x200xI1x17ᑴ£,I=78200x104mm4,Wx=2610xl03mm\½¾ᢙ¸À-᫡Ḅ¸ÁÂ(N/mn?)ÂV2ᑡ()⚗ᦪᨬ'7Å஺x<,ÆWnxWxAஹ195Bஹ174Cஹ164Dஹ130

1220ஹÇÈ☄ᜩ᪹ÌÍ⊙ᜩ᫑Í48m,᫑3m,᫑☢xᙠ᫑2Ð☢ᑁ᫑☢᫡qÒ3m,᫡V᫑2ᩚÐ7᫑ஹ2Ð☢ᙳᨵQᥛᙠ᫑Ḅm>ᨵ᫑Ô᝞2"ᡠ<஺᫑ᵨ0285-83ÕÖᑴ⌼.G7{ᵨE43|Gᩩ஺᫑BQᥛØÙஹ᫑☢ØÙB᫑☢Úᵫm᪷᫑ÐᙳᑖÝᑖÞ£ᵨᙠ᫑B᫑2Ḅ⁚$᝞2"ᡠ<஺
☢᫑
☢ß@₹,Fi=12.6kNF=123.6kN᫑ᩚ:ᙳᵨ»¼H|H|Ḅῳ%V᫑Ð☢о஺ᙠàᚖ₹£ᵨ2᫑2ᩚOḄV[Ö⚗ᦪâÅ஺2Aஹ-1932.OkNBஹ-1881.6kNCஹ-1684.8kNDஹ-1634.4kN

1321ஹB⁚$%Ḅã767[ᵨ4᪝67Öᩩ:,ᨵB⁚$%ã7Ḅ4᪝67ᩞ'Q235-B'FḄ3\-3.9X1஺7☟Ö.ᵨCW4᪝ᵨ2L90X6ḄᡂT☢[ç"4.2.43
.☢èA=2l20mm,"4.2.45⌕+,./4᪝ᦪBtx22ஹ67%Ḅᨬéê☢☢èᩩ:,"4.2.38⊤<ì&'tḄ%Ḅã767ᵨCWXY4᪝4᪝íd=22mm,4᪝í&>=23.5mm᣸ᑡ4᪝᝞"<஺⌕+,+067%Ḅᨬéê☢☢è

14I6450î35ï5]50]2404.2.38Ḅ23ஹᙠPḄn☢xÇðᐸv᪀"᝞⚪"ᡠ<ᙠD$ß@ñò₹F,v᪀ØÙóôᶍ_v᪀ᵨQ235-B3ÕÖ஺+öᩚ:ACḄ'600kN,÷ᵨ160x160*8ḄG7øA=4864mm2,ix=i,=62mm,ᢥ᪀:½¾^À᪀:☢ḄᨬᜧÂV[Ö⚗ᦪ7Å஺Aஹ149.2N/mm2Bஹ156.5N/mm2Cஹ180.1N/mm2rDஹ207.1N/mm2

1524ஹPqQᥛ>⁚$67(ᵨ4᪝᥅|67)ᩩ:,"4.2.64'PqQᥛVPḄ4᪝673F=6.5xl05No᥅|4᪝'10.9WḄM20,í21.5mm,7ú☢ᵨûṺUýþ┤ᜐᳮ஺ᩞQ235-B-F஺61■?!0-!0-e-<6©-8૙.一©->41♦-•15<10)ᩩ:"᝞4.2.50ᡠ=Ḅ56ᵨMl8c?@A2᪝'(B+C஺ᩞQ235,DE☟G₹I஺

164.2.50⌕!"156JKLᡲ)DENGOPQ'(ᡠRDEḄᨬᜧ₹IKUVF
2W56JXKLᡲ)OPQ'(ᡠRDEḄᨬᜧ₹IKUVY2᪝Z[⌱20mm஺26ஹ]^ᓝ`aῳᩚḄd)ᦪfᩩ:"᪹hEijᩚ,lᵨd)'ᡂḄnoᓝ`pq☢᪀:,olᵨ2L70X5.ῳᩚḄtuᑖwxBCஹJyᩚḄ⁚{)C,⁚{|}~6m,oq☢ᱯឋ᝞4.3.4.=216cm*M»=273cm1.39cm4.3.4⌕!"]^⁚{)'(toḄd)ᦪ஺

1727ஹ56'(ḄDIG#$Yᵨ/012᪝᥅'(ᩩ:"4.2.59ᡠ='(Plᵨ/012᪝᥅'(OḄ01஺2᪝8.8?M20/012᪝Pᱏ0.30,2᪝[d=2
mm,2᪝᪀:ᩞᧇQ235,U$VM=35kNm⌕!"#$DIG஺28ஹḄᔣᩚᩩ4.3.5ᡠᵫ2L75X5☢7.41X2cmDᡂḄḄᩚ.}GḄKUV270kN,DE☟GᵨPU$13m஺ᩚuᨵ᣸[20mmḄ2᪝Z஺ᩞQ235஺U$Oᶍ'(}ᩚ:Ḅ¡¢஺ᑁ=250,ix=2.32cm,i=3.29cm,ᓫ¥ᨬ¦§¨©[ii=l.50cm஺y64.3.5

18⌕!"#$01ஹª129ஹoEẚ¬OḄᨬ¦q☢☢®ᩩ#L90X10,AN17.167cm2,$%&'ᨵ)*+,᣸ᑡ᝞4.2.43(a)ᡠ,+14=21.5mm©⌕!"¯oEẚ¬OḄᨬ¦q☢®஺4.2.43ᵨ34☢Ḅ5630ஹ᫡,-7ῳ)Ḅox±U$ᩩ:"x(²`aq☢³L᫡P᫡CEᙳµ₹IᵨPᩞQ235,xᩩE43Pᙳµ₹IKUVq=160kN/m,᫡Ḅ¶1·q☢¸¹᝞4.2.30ᡠ=஺

19⌕!"KU᫡,-7ῳ)Ḅox±஺31ஹᓫ½n¶᪾h+ḄU$1¿ᦪᩩ:"4.5.9⊤=Á(+ÂḄn¶Ãq☢+᪾h஺Z-16*350L-I0X800/-10«460t_J•''-16x300hhLI2m£.=l2m4,5.9⌕!"]^Ä+|+ᙠ᪾h☢ᑁḄU$1஺32ஹ]^iᩚḄd)ᦪfᩩ:"--᪹hḄEiῳᩚ,lᵨd)'(ÆᡂḄnoTaq☢᪀:,oᵨ2|_50X5஺ῳᩚḄtuᑖwxBCஹJyᩚḄ⁚{)CPᨵ{|}~1.2m,oq☢ᱯឋ᝞4.3.3஺

20ஹ=I53cm~I92cm0.98cm4.3.3⌕!"]^ᙠ⁚{)'(toḄd)ᦪ஺33ஹ567+'(ḄÇ(x±ᩩ:"4.2.5ᡠ=56q☢¸¹:,-)É1bi=160mm,Ê1ti=10mm,ῳ)/1h=240mm,Ê1t=10mm஺ᩞQ235,xᩩE43PxᩩxPËxOXᵨÌÍ)Px±ÎfÏ?஺4.2.5⌕!"ÐU$567+'(ḄÇ(x±ᡠRDEḄᨬᜧ₹IFYKUV஺

2134ஹᙠᙳµ₹IᵨJÒÓ²`³L᫡Ḅ01ஹª1#$ᩩ:"ÒÓ@A²`³L᫡᝞4.4.1ᡠ=PÔ136a,¶15m,᫡C,-ᵨᨵᙳµ₹IKUVq=36kN/mYᒹÝÞ,₹I᪗àVqk=27.69N/mm„Q᫡LDBå᫡⚔CḄç᫡PèKéêë஺¶|ìíᔣLD஺LD1a=100mm஺W=878cm3,Ix=l5796cm4otw=10mm»h=t+r,¯ᜐt=15.8mm,r=12.Omm.ᩞQ235B,f=215N/mm2«s/ᡝ஺+25ÿ⌕
᫡Ḅஹ஺35ஹᓫᓫ᪾Ḅ⌕

4.5.4ᡠᔜᓫᓫ᪾ḄḄ஺

224.5.436ஹ!"#$%&'☢Ḅ)*+᫡᝞⚪.'☢/ᡷ1஺2ᵨQ23534565ᩞ஺812.75m.9:;*<4.25mᜐ*>?᫡@ᎷBᙠDᜐEF8+᫡ḄGᔣ*I6.?JKᑮ+JMḄNOPQR₹TUVP=220kN,+᫡WXUVY2.OkN/m஺'☢☢ZA=156.8xl02mnr,'☢[ឋ]h=264876x1'☢☢Z]S=2951xOmn?,'☢^ᢙ]Wnx=W*=5133xlOMm?,'☢[ឋ9iy=48.5mm.+᫡ᢙ`aḄᨬᜧ`deP8@6஺Aஹ176.3N/mm2Bஹ179.4N/mm2Cஹ181.ON/mm2Dஹ183.6N/mm2

2337ஹ/Gf᪾Ḅᩩh4.5.13!ᨵ*ᥛḄk᪾.>lmnḄoᔣ⁚I₹T஺*ᥛᨵqrḄᢙGfstEu8D᪾8/Gf᪾஺᪾Rv᫡w8ឋx#஺2ᵨ!▤zឋᑖ᪆}~ᑁP஺⌕

D᪾ᔜḄᦪ஺RᙊᙌRᦪ%8V஺38ஹᧇᙳᓄᔆ.48m,912m,2ᵨ5᪀஺UnᨵᢞḄᔣᜩ.ᔆᒈ☢᝞⚪RḄ(a)ᡠ஺᫡(A1),᪹ᜧ¡ᩩ(A2),¢ᩩ(A3)£¤☢¥¦*ᥛ(A4)Ḅ§¨mn)᝞(b)ᡠ஺¤☢2ᵨ©⁐«¬5.4mḄ®`¬5¯°ᩩ(R²³).*>ᙠ᫡¢ᩩM.¯°ᩩµ¤☢ᚁᔣḄ°981.25m஺85mḄ¢ᩩ(A3)*>ᙠ᪹ᜧ·ᩩM;12mḄ᪹ᜧ°ᩩ(A2)*>ᙠ᫡(A1)M஺ᐸµ¤☢ᚁᔣḄº985m,£»*>(A7)Ḅ§¨mn)᝞(c)ᡠ஺᪹ᜧºᩩ᪀)᝞(d)ᡠ஺¼᪀2ᵨQ345B5.½$"#a¾ᵨE50¬ᵯ"ᩩÀᐸÁ᪀2ᵨQ235B5.½$"#a¾ᵨE43¬ᵯ"ᩩᡠᨵ"#᪀.⌕
"ÂÃÄÅÆ8ÇÆ஺

2425.5000006100062400024000M冈l区XxM伙M1_:_l——100010Mflx冈lhXSW13X9XII|qÉXXXWKXIXÊÊA7M12000,12000.12000

25(d)¤☢Ḅᚁᔣ₹TᵫÌ⍝¤☢ᔣ¥¦*ᥛ¦ᙳᑖÎÀᎷB¥¦ÏÐ*ᥛ(A4)ᙠᐸ¦☢ᑁÑὃ⇋Ô>ÎÕP஺Ö¤☢oᔣᙳm₹TUV81.2kN/n?a.×.ÏÐ*ᥛḄØÙÕPUV(kN)ewÚᑡ()⚗ᦪVᨬ8#Ý஺ÞA4Ḅ)᝞⚪Úᡠ஺

26Aஹ88.6Bஹ73.8Cஹ44.3Dஹ34.639ஹßàw5x#á"ÂḄᩩh4.2.22(a)ᡠßàw5x#.5ᩞ8Q235,"ᩩ8E43¬.½$"஺₹TUVN=365kN,âÙ9e=350mm,"ãäåhn=8mm,hn=6mm஺4.2.22(b)8"Âᨵᦔ'☢஺02R4.222$%&ßàá"Â

27⌕
ßàw5x#á"ÂḄ40ஹ`çᐳéFᵨÚḄêë᪝᥅î¬x#ᩩh2ᵨ10.9Æêë᪝᥅î¬x#.ë᪝ïðM20,᪀h#ñ☢ᵨòṺᜐᳮ.᪀5ᩞ8Q3455.FᵨPUV᝞4.2.60(a)ᡠ.*ᡲö÷øFᵨ஺⌕
UßàwḄx#஺41ஹᢥ᪀⌼û
h"ãḄäå⌕
üB4.2.6ᡠý;"Ḅᔠᳮ"ãäå஺4.2.642ஹ+᫡ÿ☢ᜐḄᢚ

28ᩩ᫡Ḅ☢ஹ₹ஹஹ᝞4.4.7ᡠ஺ᙠ!2.6mᜐ%&ᦋ(☢)*+(ᓄ-Ḅ☢./0140mm,ᢥ᯿14Ḅ6/78ᩭḄ*+:ᙠx=2.6—0.28=2.32mᜐ@ᦋ(./-Ḅ*+:ABC஺90951819018190181909()95kN756kN/m,-141280xX3743434/-8“10004*3000=120002813927812-14x280%229095HkN)9095(ᓫF:mm)⌕IJᢚ7᫡43ஹ⌱ᵨMNOḄPᩩ4.4.12ᡠQRCSTU☢VW:᫡)X/L=10.8m,Z[☟]^₹)_ᵨᙠ᫡Ḅ`*+஺-320x14y7/X-../-1400*10-380*167-320*14⌕I⌱ᵨMNOḄP

2944ஹWabcᩩ4.3.18(a)ᡠ0de⍝Wa)ᐸWhḄibcjN=1600kN,h!kC)lᩞ0Q235,☢nopqr஺,-250-14250-8(tt)4.3.18⌕IsbctWhḄ☢জvᵨwxyᑴSTl{ঝvᵨ}yH~l{ঞvᵨRCSTU☢)*+:0ᯚᑗ஺45ஹᓫX᪾ahḄc/⌕II4.5.5ᡠahḄc/ᦪ஺^ᙊᙌ^ᦪT⊤ᔜ᪀ḄAB/஺

3046ஹSU☢hḄ/ஹ᦮Jᩩ!Ciᩚᡠ[ḄᔣibcjN=500kN,hḄ/06m,bᙠx☢ᑁh04.5mᜐᨵWᥛ¡hḄ¢ᔣF£)h☢0RCSTU*+0yᑴ)¤¥᝞4.3.13ᡠ)lᩞ0Q235஺⌕IJ᦮ឋ

3147ஹSU☢hḄ§¨Jᩩ4.3.14ᡠ)RC©ᔠSTU☢[ih)ibcjN=2000kN,hḄc/IOx=6m,10y=3m஺lᩞ0Q345,*+:0ᯚᑗ)☢nqr4.3.14⌕IJ«ῳhῳ:*+Ḅ§¨஺48ஹd®☄ᜩ᪹a²X⊙ᜩ᫑)X/48m,᫑a/3m,᫑☢bµᙠ᫑a¶·☢ᑁ)᫑☢¸᫡P3m,¸᫡@᫑a¶·ᩚC.᫑a`ஹ¶·☢ᙳbᨵWᥛ)ºᙠ᫑Ḅ!bᨵ᫑»a)᝞¶ᡠ஺᫑avᵨ0285-8l3¼l½ᑴ⌼.RC¿ᵨE43~Rᩩ஺᫑aWᥛÀÁஹ᫑☢ÀÁ᫑☢Âᵫ᪷᫑aᙳᑖÆ)ºᑖÇ_ᵨᙠ᫑a`·᫑a¶·Ḅ⁚É`)᝞¶ᡠ஺

32
☢G]^₹bcjFi=12.6kNF=123.6kN2᫑aᩚᙳvᵨ}yH~l)H~lḄῳ:@᫑a☢ᙠÊᚖÌ₹_ᵨ¶)᫑aῳᩚS2ḄÍbcj@ν⚗ᦪjAÐ஺CAஹ470.4kNrBஹ490.4kNrCஹ633.OkNDஹ665.2kN

3349ஹÑ᪀hḄÒ/ஹ/Jᩩ4.3.32ᡠ☢Ḅ[iÓᩩh)Ñ᪀²h☢ᵫÔwxÕl2[32a]©ᡂ)h×Ḅ^0260mm,ÓᩩvᵨᓫØlHI>45X4M஺₹Ḅbcj0iN=1750kN,hḄc/0Ù=%=6m,lᩞ0Q235,☢nqr஺⌕IJh×ÓᩩḄÒ/ஹ/50ஹØl⁚É:ÚCcÎ☢¢RÚC½ᩩ᝞4.2.12ᡠ,Øl⁚É:vᵨ☢¢RÛÚC,N=667kN☟bcj½)Øl02L100X10,⁚É:Ü/010mm,lᩞ0Q235,Rᩩ0E43~)ÝSR஺

34⌕IsÞᡠ◤RÛḄÜ/àR/஺1ஹᵫ⊤áâ
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35~”=10,Ḅ3=ý)(*ÿl)-M8.3N/mm?_(1350-0)X103~"Og*~"0n»n400X20~=168.8N/'mm2>Czitf]xy⌕},ᐰ.wXY⊤☢,ᑣ56ᵫv⊤EḄ⚗2,2.v=86௃10%«=4.[&]="=(860)τ'=[71.3N/mm2ᔠ¡v[%]Ḅ⌕}.¥6₹§¨5©Ḅz{N1800X103஺="406ª20=22bN/mm

36N>=X=>=12.5kNn16ঝᙠV=F=400kN0ᵨF.᪝9ᙳᒴ3!<᪝3Ḅ=:$=B=C=25kNn16ঞᙠEFM0ᵨF,᪝9G᪝9HI7JK,1L᪝3)ᨬᜧ.MM^_________LWXjOLX350_________7kMV==4J“஻2X(35ON25OZ+15OZ+5O2)X2(3)OPQRᙠMஹVTNᐳV0ᵨ81L᪝3ᨬᜧ25*௃2.5+41.7_஺Rd.caccZ+—^-__6^75+-124--------0-36+044~°-80Vl(`a⌕c).᪷e%fh5.3.3ᩩj2kᐜᢥnop᣸rὃ⇋.K=0,K?=10.⊟%fh⊤h1!
஻=0.732,4-0.732X6000=4392mm.xHyz6/H=200/500=0.4V0.8,{fh⊤5,1.2-1|x7}a~!
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37⚔op==ᡠᓫoᓽ4WAMLX=ᥛ᪀ᓫoḄஹᓽ=ᥛ᪀Ḅop.opᑮSஹḄឋ¡ᓽ¢ᡠ⌕cஹ£ᥛឋ¡Ḅᑖ¥¦!ᵫx¨P©ªឋ¡Ḅᑖ¥¦.,B!_i=4242¬IO,X600—5Ml__3E^~"3X206X103=2.471X108mm'ᡠ⌱ᵨᥛ=HN45OX15OX9X14,/=2.71X108mm4>2.471X108mn?,ᓽ=ᥛ᪀.ᢥᥛP᣸rᓫ¸¹º»¼c½=0.978ᓫº2/=0.978X௃1420X215=24OOkNA¾.8¿ᙳ=᪥R.¢᤯᤮.ᵫ%z᪀fÃ.3.6ᩩ,᤯᤮PÄ=ÅÆÄ.6mB,ᨵ•᫡Ê¿᪥R.⚔©=Ë=¾ÌÍ=1.5.Î!Ï=0,᩵ÑD-2.஻=2.25,/OL”1=2.25X62஻I=13.5mᵫ%fhÓÔ5.3.6Õ,▬ᨵ᤯×ḄØop᪾rḄPÄÚᜧÛᦪ—=.31.22X13.5=16.5m6ஹÝÞ½Fpᑮ᪝9☢!ᑣE¡MTV஺VᵫáâãḄ¿äåᡲᑬ⚔è!ᑣᵫᡲé஺᪝9ê3E¡MM=F«=280X0.21=58.8kN•mᓫëḄᢙ).N=A/ìl4.*௃70=41620N=4L62kN᪝9ῊPîᵫ»ïðñ,1Lò3ᨬᜧ,=óᑴ¦,ᑣ|KõöOP

38zIyz_(58,8X103X400)Nt-My^/mSy,-2X(m+20Q2+33+4002)=39.2kN120,xyvXB,5ᡠ¶ºᵨ»¼56Ḅᩩ.ᦑᢥB.IḄ¶56.Ô3
56¿À᫡Ḅ᦮´Á¶ÂᦪÃW="=ᗸÅG=0-898.ÆHI⊤B.1d=0.69+0.13X0.898=0.807.n1/0AoOU'ᵨvÃÇÔR1-D÷øùú.☟üᔩ)6=1.07-0.282/0.83=0.73(4)OP᦮ÿ
M,==4x34-35X52=107.3(kN•m)ooᨬᜧᵨ"#%&'(4.2.2)*ߟ,=஺../,0=1<ᱏ2157*)9ஹ᪷7"#%88.2.7ᩩ8,:ஹ8;:Ḅ#
=>?@AḄ@BCDEᔠG4.2.32Ḅ⌕I.

395V=L5v/T6=6mmJK/if=5mm஺1ratii()ஹÉÊ˯Ì#ÍÎÏḄÉᔣXYÑÒÓÔÕÖḄ×دÙḄᐳÛÜᵨ.Ì#ÍίÓÏḄXYÑÒN.<1)XY565Z.=8X(150-10)^1120mm—N200X>=Lv0=200ßà.-1.22X0.7áXI12002/“>1.05mm᪷7᪀⌼⌕IAh..n=1.5/C^'=1.5X714=5.6mmmvᦑKPQ>@AḄ@BCDA(=6mm(2)RS@ATᐜᢥ᪀⌼⌕IW
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40M=N\â=50X95=47501^•mmA.=M"2X0.7X6(130-12)=௃008mm2W*=2X!XO.7X6(௃3O-12»=2.016X104mn?oV50X103-2âF$L49.6Z“nmZ_M_4750X103k4....zCLWâ2.016X10,-235.6N/mmJ(1)'+—j+49.6_=199N/mm2~0l21JI2X/,///fX7966.4745bñv⊤D-2:)i\=3.072ò஻h2X1JI2X7284.3/720î2K,=0.254,K=0£1

41`"#%⊤>2*Q2=120H21b//bf/A_4154.o/720—kooc-nOQCc3R1=IV7-7r77-7966.4745O-0-326^2-0-286`"#%⊤D-2*ᑁ=1.89“I%W/h/=b_2XZ//|,_2X4154.5/720—02HqK=0254c4suwᑍ,p^4--179~᝞,0.289/0-254`"#%⊤D-2*=1.993.᪾cQ☢ᑁTsc1:K=o.286.K2=0`"#%⊤D-1*:fii—0.951c2K=0.254,K2=0`"#%⊤r)-i*:%=0.956c3K=0.326,K?=O.286"#%⊤D-1*:=0.901c4Ki=0.289.Kz=O.254`"#%⊤D-1*:=0.91012ஹÓô{B=16-2(14-6)=30(cm)Ꮇ¨öẠøùú᪗üC20,ὃ⇋öẠøùúÿ
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42☮᫡ᑁ%&)*+ঝ-."*+/h=12mm.9ij2Z=2X426=852(mm)wN_1300X103q/z/2ஹ60.72--0.7X12X852-1O1.6(N/mm)<^/T=195.ZN/mm2(;<⌕=)?ẠAB%N1300X103C22ஹ9=BL=300X450=9-6(N/mm)DE=^=2^6X6O^M=172g()(N#mm)FGHIa=16mm,6i=3.4cm,b\/a,=t0.213V0.3,ᢥDE4KLḄDEM"ᑣUᦔ1_9.6X3.42_«C/MஹM=2ri=---=----=55.5(N•mm)¢¢'GHIa=7.6cm,6=35cm,6/a=4.605»a=0.125,ᑣM=aqa2=Q.125X9.6X8O2=7680(N•mm)*+ᓱ-=225(mm)#"=24mm஺OK24mm,f=205N/mm2஺_-RῊT☮᫡¨=ᢥ©ª«᫡T.ª«¬ᑖs3.4cm,₹¯g=W=0.96X15—11.4(kN/cm),°᫡±38cm,²1cm,³´ZV=1X3.4=49.OkN=M,ᔁ=X3.1-83.2(kN•mm),¶·5r=Jᐔ="»¼"—௃9.3(N/mmDV(-125N/mn?(¾¿⌕I)JbUᐭ1vJ0Uᐭ1U0=E=——3.4(N/mm2X/^215N/mm'(¾¿⌕I)"X10X380?o☮᫡ÀÁ¬ᑖᵫ¶ÄÅÆÇTY,ÈÉÊĘ̈ÍT.13ஹC14ஹ

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45(2)[᪝nMopᩚrs[᪝\te=160mm.NNw_205XIO3_205X௃03x160X200N^---i12-2X(4O2+12O2+2OO2)X2mZy=17083-29286=-12203N<0ᵫvN-VO,⊤xyzᨵ
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ïḄïðs440i,ñæçòᡂḄᓝóI*☢i2sçḄᨬ3ôSõö஺ᦑsW40i=40i=40xi.39=55.6cm,◤⌕Ḅã
ᦪn=(lo/s)-1=600/55.6-1=9.7(ᙽ),ᡠÓE10ᙽ஺27ஹMP=125kஹ,ᑣù.M=0.8P=0.8X125=100kNᵫ5.2.59(4)úû21ü᪝ᨬᜧ,îRSTJᙠ஺Ný=þTK7╢5=52.5kNVM=100kN⌕.

5028ஹQ235/=215N/mm!"1!#$☢&'A=74IX2=1482mm2A=1482-20X5X2=1282mm2nN270000os1”-8mu-2o=T~~~iboo—210.6N/mm"V/=213N/mnr*■n1/HZ(2)>?'@=129VRCDE&'FGᩚஹ>ᙳ⌕஺29ஹKLMḄOPQRSᔣQᑁVᑗX,Z[ᙠᐸSᔣQ^,᝞`4.2.433)ᡠb஺cd[ᡂḄ`fgᡂ--hiḄPj.KkḄlGmnoᨵqr(1)sR1-2-3oẚuvwx•z{rA“i=A-d஻=17.167X10!-21.5X10-1501.7(mm2)(2)sR4-52-3oẚuv,wx2z{rA7=A+(7^+32.*5f90)X10-2X21.5X10=17.167XIO?+56.9-130=1313.6(mm2)

51·¸º⊤3.4.1-3ij)*+Ḅh/T=160N/mm21!)*+Ḅ᪀⌼⌕=½¾·¸º¿8.2.7ᩩ⌕=ᨬᜧ*ÁÂÃ^^=1.2X12=14.4mmᨬ*ÁÂÃ^=1.5X720=6.7mmᦑ#*ÁÂÃÅ=8mmÆ᫡Ḅᑁ%Ç☢)*+ᐰ4ᑖÉ"ᦑ*+M4Ê
▲ᑴ஺2!☢ÍÎᱯឋIn=+2X2X30X26?=93620cm'*+ᜐS=2X30X26=1560cm13!)*+ḄM½¾·¸º¿7.3.1ᩩ⌕=HÑᜐR%ᨬᜧV="Z!/2-"160X10!/2=800kN9)*+ḄB%2AV"!2+"M!2=2X6.17X8"‘°!=1௃9N/mm2C/r=160N/mm2ᦑ*+]^☠.31ஹ

521.᪀Ḅ$☢ឋ.᫡஻n=1X80712+2X35X1.6X40.81-229100cm'Qr/=lX363஻2+2X30X1.2X18.6:28800cm'r/-lX46'/12+2X3OXl.6X23.8’-62500cm'2.zᨵV᪾.Ḅ^¡¢.D¡᫡>.£¤¦D-2§Kz=0.3.᫡Ḅo>¡QḄo>¨©.Kª«¬43¤/D-2§QḄ&'®¯ᦪ:“=2.07-◤³(2.07-2.03)=2.0684“H=2068X8=16.544´■1.µz᫡Ḅo>¶·¡Ḅo>¨©2LH2X229100X8.♦=k=625OOXi2…o᩵¹¤3⊤D-2§Ḅ&'®¯ᦪ*2.07+»¼(2.33-2.07)=2.0765./½஻H=2.0765X8-16.612mo32ஹᵨ¿jÀᡂḄÁMTf$☢lÂ᪀ÃᢥÅῳÇlÂ᪀ÈÉ&'ᑣ¿jËÌsS40i,ÁMTf$☢viÍzM¡¿jPÉḄfÎÏḄÐÑÒÓ஺Ôv¤ÕlÂ᪀ḄµzVᔣÖ×ضËḄ¿jᦪÙ§Úµz஺ᵫs*0i=40iÜ40xl.53=61.2cm,Ý◤Þß1ᙽÀᢥlÂ᪀ÞßḄᨬᦪ2ᙽᦑFlÂῳᩚâÞß2ᙽ஺33ஹ

53(1)ãÕäå&'$☢ḄæçᱯឋজãÕ·ÏḄêß_(160-10)mtnX10mmX5mm+¹24O~~5)mmXlOmmX127.5mm8mm(160—10)mmX10mm+(240-5)mmX10mm>?=250mm-79.8mm=170.2mmঝäå&'$☢Ḅæçᱯìss-j^X1cmX(24cm—0.5cm)34-(24cm—0.5cm)X1cmX(12.75cm—7.98cm)'+(16cm-1cm)XlcmX(7.48cm/«s24450cm,ῳjäå&'$☢Ḅ☢íA=(24cm-0.5cm)Xlcm=23.5cm2w(2)ãÕ᯼åᡠk×lḄᨬᜧ₹ñÞ&©FLòFᔣäå$☢fÎóᓄ§rM=Fe=160F.V-Fõ⊤§/T-215N/mm2,/T=185N/mm2=125N/mm2.ØaḄGâò4,ö÷⌕Ù&♦ᓽd=ᓫ=16ᔳ?4ü79஺gmm=o52X10_,F=/r=l85N/mm!!/,2455X10mmý§F%355.7kNØ஺ḄÂâòþö÷⌕ÿᓽᧁ=ᵨ=“°=L11XIO-F=6=215N/mn?/«Z455X10mm*'FN193.7kNᵫV-FḄ⌕rX/Tp5,23.5*.**1஺3F=/T=125N/mm^F«=290.7kN.&Ḅᢚ⌕ᜧLI#,ᓽ■!"F-y(1.11X10JF)J+3X(O.43X1O3F):=1.l/TFஹ152.2kN.ᦑ%&'ᡠ)*+Ḅᨬᜧ₹./01F152.2kN.34ஹH»,=-l-g/2=-5-X36X5t=1125kN•moo(2)nMᢙÓMm112.5X106%W*1.05X878X103=122N/mm2V/=215N/mm2(;<)

54ᢙ3456☢89:;<=>0?@*A5BCD*+ᙳᒴ₹.G=H?@*AI஺JK᫡M*N᫡⚔☢DP@8M*QRSIMTᜐ?@*A34஺HÑÔ%:R=gg/=5X36X5n90kN᪷¾·¸º4.1.3ᩩḄ¸Õj/t=r4-f=12.0+15.8=27.8mm,y/=^=T3?!^F^h5E53.1N/mm2V/=215N/mmZ_;

55(1)Û4.5.4(a)ᡠÝÖÞABß//\l\/!/414-=3耳276K?=10(AyKâÕy)i·¸º⊤D-2,jM4ᦪ“=1.07M4Z„=l.07X6=6.42m(2)Û4.5.43)ᡠÝÖÞABßKz=0AyK^ci·¸º⊤D-2,jM4Z=2.11X6-12.66mo(3)Û4.5.4(c)ᡠÝ᪾ÞABß=0(ä᫡åß᪥^)Kz=10(AyKâÕy)i·¸º⊤D-2,j“=2.03M4Z=2.03X6=12.18mozçFÛᡠÝ᪾ÞßḄM4ᦪ஻ᙳᜧv1,é(6)ÛÝ᪾ÞßḄ஻hKᨬᜧ"ᐸêÕឋᨬë.36ஹC37ஹ¤¥8¥᪀₹.Gᑭᵨ¢⊤D-1§ᔜḄ04ᦪ஺1.2ABK1—=1.2K2=IO0.4+0.6஻AB=0.619K'=6^MH=1-5ZL2BCW=0.742Ki==2.5K=l.5CI20.4696

56]2°+1£2௃.ßEF2K2-10஻EF=0.61912+12ßFGK'058´058L5K1.2஻µ=742ßGH/<1=¶=2.5K?=1.5Uo஻H=0.69638ஹC39ஹNᙠ¸&'¹ºᜐ»¼V=N=365kN½¾M=Ne=365xO.35=127.8(kN-m).(1)ὃ⇋ῳÂ&'ÃQÄ⌴½¾Ḅ0ÆÇᐰ*+ᨵᦔ☢AtñḄòឋóK=2X2È"+2X210X5.6X202.8Z+4X95X5.6X172.82=1.88X108(mm*)ôõ*+ḄᨬᜧB%“L᫏"ËᠲÍX205.6=139.8Î஺=1.22X160=195(N/mm2)ῳ*+t÷ᑴCAᵫvÓóMøùḄB%1702a=140X^7=115.8(N/mm)cᵫvR%Vᙠῳ*+túûḄYᙳRB%_V_365X103£(ÐÑ)—127.8(N/mm2)2X0.7X6X340

57ᑣῳÂ&'Ḅ34(A/0Õᑴ)/×)'+/=)(ὺ)+127.82=159.2

581.54
=1.5mm=4.2mm/1f=5mmmm1.2f=1.2X6mm=7.2mmᑐ1=7mmmmmM:=2mm=8-2mm=6mmᡠ=6mmᔠᳮ஺(2)ᙠ4.2.6(b)1.5/Z^T=1.5v/T0mm=4.7mm/1fic=5mmm1.2t=1.2X5=6mmA^x—SnimmmZ=5mmV6mm/1f=5mmmMᡠ/i=5mmᔠᳮ஺f42ஹᵫᙠ☢ᜐᨵᜧ!"#$%"#Ḅ&ᵨ(◤*+ᢚ+"#஺ᦋ☢ᜐ᫡Ḅ0ឋ23/*=66667+2XMX1.4X(AB#ᓃ167430cm'᫡ᙠIJK2.6mᜐ☢ᡠᨵ23M,=(374.34-90.95)X2.6-1/756^2'=730.88kN•mVW$ῳYZ[\ᜐḄ!"#3-_730.88X10rX500Kᦻᵨ=291]8fi.3N/mmz2%"#3_VS_(374340-90950-1756X2.6)14X1.4X50.7Xl03”/r-Md------------------16743bX10'------------------d20-69N/mm?2ᢚ+"#3%="+3J=7218.3i+3X20769^=221.2N/mm?<1.1/=1.1X215=236.5N/mm2

5943ஹ(1)mnopḄqrst\uVWvwxᑮz{ὃ⇋஺*1400^>802=140U10.V150~◤rᔣnop,nopI"ᢥ+m஺(2)⌱ᵨnopḄIᔣnopḄᨬᜧIU=2/>,=2X14OOL2800mmὃ⇋ᑮᙠ₹&ᵨᜐ(J$ḄdᑖKᜐ)◤rJnop(ᔣnopI3«~3600/2-1800mm,r᝞4.4.13ᡠ(
0.5Aiy=3000mm஺(1)«ᑴ®¯(4.3.18(b))জ±⌱☢Ꮇᐭ=90,´«ᑴ®¯(µ¶x¢ᜫ¸¹a»☢(ᵫ⊤C-1¾¿wஹ=0.714Á¶y¢ᜫ¸¹b»☢(ᵫ⊤C-2¾¿621஺◤⌕Ḅ☢ÂÃᱯឋ

60N1600X103A==11984(mm2)᜛nun/0.621X215.Zox6000~~rjfஹ»=—==66.7(mm)xQn._Zoy_3000_„Q,ஹi=-^=-gQ-=33.3(mm)yᵫͯ☢ᱯឋ⊤BÎÏ⌱Ð
Aஹix$iyḄ®¯(Î〉µὃ⇋A$ixÒÓ⌱Ô஺Õ±⌱156a,A=135cm2,i=22.0cm,i.18cmoxyঝ☢*+☢×ØÙÚ¤(ÎB*+¡஺Û«ᑴ®¯ḄVW$ῳYᙳÝ(ÎB*+Þ߸(~◤ÒÓ᦮á¸$â*+åæ=ç=27.3VCG=150ãä2è஽=ê=94.3<[Aj=1501yO1•Oᐭìᜧí.ᦑᵫᐭ¾⊤C-2¿᜛=0,592,îN__1600X103==200.2(N/mm2)0.8,ᡠðB÷´x¢ᡈy¢ù¹b»☢(µᐭ=60(ᵫ⊤C-2¾¿w=0.807,ᡠ◤☢ÂÃᱯឋA_N_1600X1()3_807X215-9'w22(mmú=(=ç=100(mm).93000;ஹ'(=[=%^=50(mm)ᵫͯ☢ᱯឋ⊤±⌱HW250X250X9X14,A=92.18cm,i=10.8cm,i=6.29cm஺xsঝ☢*+

61☢×ØÙÚ¤(ÎB*+¡஺Û3îï«Í¯(üÎB*+Þ߸(~◤ÒÓ᦮á¸$â*+h=ý=◤=55.6Vm50ᐭ(=9὜=47.7VR=15஺´x¢$y¢ôᙳ¹b»(ᦑᵫãäḄᜧôᐭx=55.6¾⊤C-2¿w=0.830,îcߟm
=2091(N/mm)Vf=215N/mm?(⌕).UbJU1o1v(3)☢(4.3.18(d))জ⌱☢᯿H☢⌱ᵨ☢᝞4.3.18(d)ᡠ2—250x14,ῳ"1—250x8,☢#$ᱯឋA-2X25OX14+250X8=9000(mm?)/,=^(250X278s-242X250J)=132499000(mm')j=2X3X14X25OJ=36458333(mm')ঝ᦮!"#$%!"#&=&=^^=49.5<[A]-150Ig1c1•0ᐭDᒹF=47.2V|>]=1501yO«5»U

62)*+y+,ᙳ.b/.ᦑᵫK"#Ḅ4ᜧ,6789;⊤C-2=%—0.859.@1=஺.—12஺7.஺A3»^Nீ2„PCD⌕FG.ঞIJ$%.KL᜜NJᑖyPQRR"&=8.6«1040.MNy^=௃5.0PCD⌕FGῳVḄIJWX-31.3ீA25+0.5ᐭ⌕=49.8PCD⌕FGZ☢\]^_`,bc$%de.ট᪀⌼Vῳ"WXYZ[80,ᦑ]^_`aᔣcde஺fῳ"ḄhiᨬZklm—=1.547=௃.5\/H=5.6mmoᵨᔊ=6mm஺qrstuoᵨvw]xḄ☢yz{|_}஺ᵫ}ᑴ☢YH☢☢ᜧ50%,ᵫ[ḄZ஺ᙠ⚪ᔣḄ}¡¢ᔣ}ḄI/2,£ὅḄ¥Y¦§ᜧ[¨ὅV©tuḄª«¬ᵫ®ᑴḄs¢ᑣᨵ±ᜧ²³᪵]µ¶·^¸oᵨ¹w☢º»¼c½ᔣtᥛḄᦪÀ஺s[ᑴH☢᪀Áᵫ[ᐸÃÄᔣḄ¥YÅÆÇÈrÉᑮ|ËÌÍᵨᧇµ¶஺Ï☢ḄÐÀᜧᙠ_}ÑÒÓÔῳuÕºÖᐜ⌱ᵨH஺45ஹ⚪ᡠÙÚÛ₹«ᙳᐹᨵsßឋV©à◤}ABuBCuḄ}âᦪ஺ᜫÌÕÙÚᨵ½äåæçèê⊤D-2஺ABuKi=l.6/04+0.8
=1.333,K=10AìíÍN2î=1.133æçèê⊤D-2
ïuKðᔁ=2.5,Kkò⚶=1.333ᵨ=1.200æçèê⊤D-2
.46ஹôᫀ᪷÷⚪ø10x=6m,10y=4.5m

63(1)}☢ᱯùú஺û☢☢ü:4=2X22X1+20X0.6=56cm2☢ÿឋ
/=X(22X223-21.4X203)=5255cm1xA/y=2Xᓧ2=௃773cm”ᶍῳ#)12☢
$x56-9.68cmfgh9=5.63(2)pḄ!"#qe$%஺h=?=^^=6L98V[2]=1505"{|93VRG5O<3)᦮$%.᪷Z☢ᡂᩩ689;⊤5,1.2-1.)*+.b/,)y+.c/6789;⊤C-2,C-3=Q=0.807-"ᜓ⎀]X(61.98-60)=0.796ᦛ=0.6ᔙ[ᗸ∅879.93—75)=0.578ᑶ=0,^8X^00=154.W/mm?

64ῳ#345=250mm,64r”=8mm7892=50.4,;<᜜>?4b=125mm$64/=12mm.ῳ#@ABCᢥEFHIJ(5.4.2-1),^=2|O=31,25V(25+0.5%ᢤ=(25+0.5X50.4)y^|-41.43L<@ABCᢥEFHIJ(5.4.1-1)"§=N=10.42<(1O+O.10+0.1X50.4)5/111=12.4ῳ#O;<Ḅ@ABCᙳRSᑮUV஺48ஹD49ஹ1.☢ᱯឋ
Y☢☢ZA=2x4870=9740mm2ᓫ\]^74loi=52Ommᓫ\i=125mmxii=25mmy_`abឋcId2x(305+48.7x132)=1.707xl08mm4

65`aஹ_ZOX_6000_4C789ghᔆjh48ஹZoy6000/U4n=᱄=p=45.4eᩩ☢☢ZAi=2X3.49=6.98cm2=698mm2ᣚ^789s”=Ju+27ᩔ=)45.42+27X◤=49.42.☢y^
z{|}᪀JYEFH⊤5.1.2-1Ḅb☢,ு$◤]^_`aḄBCឋ$EFH⊤C-2,ᐭ=49.4,=஺.859,<',0,859)<9740=209N/mm2V/=215N/mm?᦮BC⌕☢◤y^☢¡4஺3.@ABC
Y\¢£|$@ABCR¤UV஺4.¥4y^
A.x=49.5<[A]=15Om5.eᩩ☢y^:ªᵨEFHJ(5.1.6)974◤xy|||=2.46X104N,eᩩa=1.74x10,N72/2eᩩ74/,=26072=367.64mmeᩩᨬ¯io=8.9mmeᩩ789Ao=/"M=367.64/8.9=41.31ᓫ°|¡4ᢚ²³ᦪ0.6+0.00154=0.6+0.0015X41.31=0.662ᵫsSBC³ᦪ0p=0.909¸b☢¹eᩩBCy^ᨔ=»¼=54.85N/mmY஺.6627=142.33N/mm^ᡠ⌱eᩩ☢BCឋ⌕஺

6650ஹḄde¡,r=16ON/mm2,ᑣᐭJ=1.5-/To=5mm£¤¥ᜐᵨ.K=10¨஺©2)=9Á8mm£¤ªᜐA.™«=1.2X10=12nun(£¤ªஹ¤¥¬=8mm(£¤ª¤¥®¯ᵨ°±Ḅ,²®³¤ªḄ#¤¥Ḅᜧ2mm).N,=´N=0.7X667=466.9kNN2TzN=0.3X667=200.IkNᡠ◤¶¡%!e·4=N"(2X0.7/i/r)=466.9X107(2X0.7X8X160)=261mm($y=Nz/(2X0.=200.1X107(2X0.7X8X160)=112mmᨬ¹!e·8º=8X8=64mm>40mm,69mmᨬᜧ!e·60»=60X8=480mm,¡%ᡠ=Ḅ!eCDᨬ¹,ᨬᜧ!eḄ⌕F¼☢½▭¿!e·Z)=Z+2ᑠ=261+16=277mm,280mmwl/2=/s+2/h=112+16=128mm.130mmÁ⚪ãÄÅÆÇ,ᓫ£ÄÅḄde¡,ÉÊ0.85ḄᢚÌÍᦪ஺