绗簩绔?/p>
杞村悜鎷変几鍜屽帇缂?/p>
濮撳悕
鐝骇
瀛﹀彿
涓�锛?/p>
濉┖鍜岄�夋嫨棰樸�?/p>
1
銆侀摳閾佽瘯鏍峰湪鍋氬帇缂╄瘯楠屾椂锛岃瘯鏍锋部鍊炬枩闈㈢牬鍧忥紝璇存槑閾搁搧鐨勶紙
锛?/p>
锛?/p>
A
锛?/p>
銆佹姉鎷夊己搴﹀皬浜庢姉鍘嬪己搴?/p>
锛?/p>
B
锛?/p>
銆佹姉鍘嬪己搴﹀皬浜庢姉鍓己搴?/p>
锛?/p>
C
锛?/p>
銆佹姉鍓己搴﹀皬浜庢姉鍘嬪己搴?/p>
锛?/p>
D
锛?/p>
銆佹姉鍘嬪己搴﹀皬浜庢姉鎷夊己搴?/p>
2
銆佺┖蹇冨渾鎴潰鏉嗗彈杞村悜鎷変几鏃讹紝涓嬪垪缁撹姝ｇ‘鐨勬槸锛?/p>
锛?/p>
銆?/p>
锛?/p>
A
锛夊寰勫拰澹佸帤閮藉澶э紱
锛?/p>
B
锛夊寰勫拰澹佸帤閮藉噺灏忥紱
锛?/p>
C
锛夊寰勫噺灏忥紝澹佸帤澧炲ぇ锛?/p>
锛?/p>
D
锛夊寰勫澶э紝澹佸帤鍑忓皬銆?/p>
3
銆侀挗鏉愮粡杩囧喎浣滅‖鍖栧鐞嗗悗锛屽叾锛?/p>
锛夊熀鏈笉鍙橈紝
锛?/p>
锛夊緱鍒版樉钁楃殑澧炲ぇ銆?/p>
锛?/p>
A
锛?/p>
銆佸脊鎬фā閲?/p>
锛?/p>
B
锛?/p>
銆佹瘮渚嬫瀬闄?/p>
锛?/p>
C
锛?/p>
銆佸欢浼哥巼
锛?/p>
D
锛?/p>
銆佹埅闈㈡敹缂╃巼
4
銆佷袱鏍圭瓑鎴潰鐩存潌锛?/p>
A
鏉嗘潗鏂欎负閾搁搧锛?/p>
B
鏉愭枡涓?/p>
Q235
閽紝浠栦滑鐨勬í鎴潰闈㈢Н鍜岄暱搴︾浉鍚岋紝鎵垮彈鐩?/p>
鍚岀殑杞村悜鍘嬪姏锛屽湪姣斾緥鏋侀檺鍐咃紝姣旇緝
A
飦?/p>
___
B
飦?/p>
,
A
飦?/p>
____
B
飦?/p>
,
A
l
飦?/p>
___
B
l
飦?/p>
鐨勫ぇ灏忋�?/p>
5
銆?/p>
鐩村緞鐩稿悓鐨勫渾鎴潰鏉嗭紝
鍙璁℃垚鍥剧ず鐨勭粨鏋勫舰寮忥紝
璇曟瘮杈冧互涓嬩笁绉嶆儏鍐电粨鏋勬壙杞藉姏
F
鐨勫ぇ灏忥紝
1
锛?/p>
AB
鏉嗕负閾搁搧鏉愭枡锛?/p>
AC
鏉嗕负
Q235
閽?/p>
锛?/p>
2
锛?/p>
AB
鏉嗕负
Q235
閽紝
AC
鏉嗛摳閾佹潗鏂欙紱
3
锛?/p>
AB
鍜?/p>
AC
鏉嗗潎涓?/p>
Q235
閽紱
4
锛?/p>
AB
鍜?/p>
AC
鏉嗗潎涓洪摳閾侊紱
______________________________
F
A
B
C
l
l
f=F/l
F
A
B
C
锛堥
5
锛?/p>
锛堥
6
锛?/p>
6
銆佸浘绀烘潌
BC
娈垫壙鍙楁部鏉嗛暱鍧囧寑鍒嗗竷鐨勮浇鑽凤紝鍏堕泦搴︿负
f=
F/l
,
鍦?/p>
B
澶勪綔鐢ㄩ泦涓姏
F
锛屽啓鍑哄浘绀烘潌鍐呯殑
搴斿彉鑳?/p>
____________________
浜岋紝
鍥剧ず闃舵鐘舵湪妗╋紝鏌辩殑鎴潰涓烘鏂瑰舰锛屽叾涓í鎴潰
1-1
澶勮竟闀夸负
200mm
锛屾埅闈?/p>
2-2
澶勮竟闀夸负
150mm
锛?/p>
鎴潰
3-3
澶勮竟闀夸负
250mm
銆?/p>
鏈ㄦ々鍙楀姏濡傚浘鎵�绀猴紝
涓嶈鑷噸锛?/p>
鏉愭枡鍙涓虹鍚堣儭鍏嬪畾寰嬶紝
鍏跺脊鎬фā閲?/p>
E=10GPa
锛屾眰锛?/p>
1
锛?/p>
浣跨敤鎴潰娉曠‘瀹氭埅闈?/p>
1-1,2-2,3-3
澶勭殑杞村姏锛?/p>
锛堣姹傜敾鍑哄垎绂讳綋锛屽彈鍔涘浘骞跺垪鍑哄钩琛℃柟绋嬶級
2
锛?/p>
浣滆酱鍔涘浘锛?/p>
3
锛夊悇娈垫煴鐨勭旱鍚戠嚎搴斿彉锛?/p>
4
锛夋煴鐨勬�诲彉褰€�?/p>
2m
2m
2.5m
100KN
220KN
350KN
1
1
2
2
3
3