骞抽潰瀹氳吉閶奸枠闁€&骞抽潰婊戝嫊閶奸枠闁€&寮у舰閶奸枠闁€涓绘銆侀潰鏉�銆佸悐搴ц▓(j矛)绠楀弮鏁�(sh霉)锛�
1銆佷竴鑸鏄�
鏈兜闁樺瓟鍙ｅ昂瀵� 3脳3m 锛岃▓(j矛) 1 瀛�銆傞噰鐢ㄥ钩闈㈤嫾闁橀杸锛岄杸楂� 3.3m锛孮235 瀵�(sh铆)鑵瑰紡澶氫富姊佺剨鎺ョ祼(ji茅)妲�(g貌u)锛岀剨姊� E4303锛屾嚫鑷傚紡涓绘痪杓敮鎵�銆備富婊捐吉鏉愭枡 ZG310-570锛屼富杌告潗鏂� 45 铏熼嫾锛岃桓瑗潗鏂� ZQAl9-4 閼勯媮闈掗妳锛屽伌(c猫)鍚戦噰鐢� MC娌瑰凹榫嶅伌(c猫)婊戝锛屾姘撮噰鐢� P鍨嬪強姊濆舰姗＄毊姝㈡按銆傞噰鐢≦L-100KN 鎵嬮浕鍏╃敤铻烘】寮忓暉闁夋(j墨)鍟熼枆锛岃▓(j矛) 1鑷�銆傛湰宸ョ▼闁橀杸鎸夐仩(yu菐n)鏅娲按浣嶇祫鍚堣▓(j矛)绠椼€傛按浣嶇祫鍚堬細闋�(xi脿ng) 鐩� 涓婃父 涓嬫父
瀛斿緫瑷�(j矛)绠� 2.67 2.54
绌�(w臎n)瀹氾紙瑷�(sh猫)瑷�(j矛)锛� 2.20 7.42锛堣繎鏈燂級
绌�(w臎n)瀹氾紙鏍℃牳锛� 2.20 9.37锛堥仩(yu菐n)鏅級
娑� 鑳� 2.67 1.67
鍟熼枆闁€*姘翠綅宸寜杩戞湡姘翠綅绲勫悎瑷�(j矛)绠�銆�
2銆侀潰鏉胯▓(j矛)绠�
闁橀杸鎵€鍙楃附姘村鍔� P=733.4KN銆�
闈㈡澘瑷�(j矛)绠楀帤搴� 未=11.4mm,鑰冩叜闈㈡澘鑵愯潟绛夊洜绱�锛屽彇未=12mm銆�
3銆佷富姊佽▓(j矛)绠�
涓绘瑷�(j矛)绠楃窔杓� q=118.5kN/m锛� L0=3.3m锛� L=3.1m锛� Mmax=160.8KN.m锛�
Qmax=183.7KN銆�
鏂烽潰-10脳372锛�-16脳160锛岄潰鏉夸綔鐢ㄦ湁鏁堝搴鍙� 650mm銆�
Wmin=1302773mm3
Smax=1009111mm3
鎳�(y墨ng)鍔� 蟽max=123.5N/mm2<[蟽]=160N/mm2
蟿max=52.1N/mm2<[蟿]=95N/mm2
鎾撳害 fmax=2.54mm
fmax/L0=1/1299.2<[f/L]=1/750 閶奸枠闁€瑷�(sh猫)瑷�(j矛)瑾槑 2
4銆佷富婊捐吉瑷�(sh猫)瑷�(j矛)
瑷�(j矛)绠�*杓 P=183.4kN锛堜笅婊捐吉锛� 锛屼富杓崐寰� R=265mm锛岃吉绶ｅ搴=100mm锛�
杌稿鐐� ZQAl9-4閼勯媮闈掗妳銆�
涓昏吉瑷�(j矛)绠�:
ZG310-570灞堟湇榛�(di菐n) 蟽s =310N/mm2
杌岄亾 Q235閶煎眻鏈嶉粸(di菐n)蟽s =235N/mm2锛屽彇 Q235 閶� 蟽s 鍊笺€�
蟽max=0.418[1.1脳P脳E/(b脳R)]0.5
=523.5N/mm2<3.0蟽s =705N/mm2锛屾豢瓒宠姹�銆�
杓桓瑷�(j矛)绠楋細鏉愭枡45铏熼嫾锛岃吉杌哥洿寰戝彇d=150mm銆�
q=2017.4kN/m
Mmax=26.23kN.m锛孮max=201.8kN
蟽max=79.21N/mm2<[蟽]=145N/mm2
蟿max=15.3N/mm2<[蟿]=95N/mm2,鍧囨豢瓒宠姹傘€�
杌稿瑷�(j矛)绠楋細鏉愭枡 ZQAl9-4閼勯媮閻甸潚閵�
蟽cg=Pl/dbl
=1.1脳183400/(120脳100)
=16.82N/mm2<[蟽cg]=145N/mm2
杌告壙鏉胯▓(j矛)绠楋細閬� 14mm鍘� Q235 閶兼澘 2 濉�
蟽cj=N/d危未
=1.1脳183400/(150脳28)
=48.1N/mm2<[蟽cj]=80N/mm2锛屾豢瓒宠姹�銆�
5銆佸暉闁夊姏瑷�(j矛)绠�
鐐虹⒑淇濆伐绋嬪畨鍏�锛屽強澧炲挤(qi谩ng)闁橀杸瑾�(di脿o)鎺ц兘鍔�锛屾寜杩戞湡姘翠綅瑷�(j矛)绠楀暉闁夊姏銆傞仩(yu菐n)鏅按浣嶆檪闁橀杸铏曚簬闂�(gu膩n)闁夋搵姘寸媭鎱�(t脿i)銆�
浣滅敤鍦ㄩ枠闁€涓婄附姘村鍔� W=533.9kN
浣滅敤鍦ㄦ姘翠笂绺芥按澹撳姏 Pzs=17.23kN
閲囩敤婊戝嫊杌告壙锛屾痪杓� R=265mm锛岃吉杌� r=60mm銆�
婊戝嫊鎽╂摝绯绘暩(sh霉) f1=0.25锛堥嫾灏嶉憚閶侀潚閵咃級
婊惧嫊鎽╂摝绯绘暩(sh霉) fk=1mm銆�
Tzd=30.22kN 閶奸枠闁€瑷�(sh猫)瑷�(j矛)瑾槑 3
Tzs=12.06kN
鍟熼杸鍔� FQ=91.44KN锛�
闁夐杸鍔� Fw=17.44kN锛�
鎸佷綇鍔� Ft=-1.58kN銆�
閲囩敤 QL-100KN铻烘】鍟熼枆姗�(j墨)鍟熼杸锛屽埄鐢ㄨ灪妗垮鍔涢枆闁€銆�
6銆佸悐搴ц▓(j矛)绠�
鍚婅桓 閲囩敤 Q235閶硷紝[蟿]=65N/mm2 閲囩敤鍠悐榛�(di菐n)銆�
鍟熷悐鍔涳細 P=100KN
鍚婅桓姣忛倞鍓姏锛� V=P/2=50KN
闇€瑕佸悐杌告埅闈㈢⿳锛�
A=V/[蟿]=50脳103/65=769mm2
鏁呭悐杌哥洿寰� d 鈮�(A/0.785)1/2= 31.3mm
鍙栫洿寰慸=50mm
鍚婅€虫澘寮�(qi谩ng)搴﹂(y脿n)绠�
鎸夊眬閮ㄧ穵鎺ユ壙澹撴浠禰蟽cj]=80N/mm2
t=P/d[蟽cj]
=100脳103/50脳80=25mm 鍙� t=28mm銆�
鍚婅€冲瓟澹佹媺鎳�(y墨ng)鍔涳細蟽k=蟽cj(R2+r2)/(R2-r2)
寮忎腑 蟽cj=P/td
=100脳103/28脳50=71.4N/mm2 <[蟽j]=80N/mm2
蟽k=71.4(752+252)/(752-252)
闁橀杸鐨勬妧琛�(sh霉)妯�(bi膩o)婧�(zh菙n)瑕佹眰
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6锛庢帹鍔涜灪姣�
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