{"id":492,"date":"2017-01-19T01:09:30","date_gmt":"2017-01-18T17:09:30","guid":{"rendered":"http:\/\/www.xzfenghe.com\/?page_id=492"},"modified":"2023-05-14T10:55:09","modified_gmt":"2023-05-14T02:55:09","slug":"selection-and-calculation","status":"publish","type":"page","link":"https:\/\/www.xzfenghe.com\/selection-and-calculation\/","title":{"rendered":"\u56de\u8f6c\u652f\u627f \u9009\u578b\u8ba1\u7b97"},"content":{"rendered":"
\u56de\u8f6c\u652f\u627f\u7684\u9009\u578b\u9700\u8981\u7684\u6280\u672f\u53c2\u6570<\/p>\n
\u7528\u6237\u53ef\u6839\u636e\u6211\u516c\u53f8\u63d0\u4f9b\u7684\u56de\u8f6c\u652f\u627f\u66f2\u7ebf\u56fe\uff0c\u6309\u7167\u652f\u627f\u7684\u9009\u578b\u65b9\u6cd5\u3001\u6b65\u9aa4\u9009\u62e9\u5408\u9002\u7684\u56de\u8f6c\u652f\u627f\u5e76\u4e0e\u6211\u53f8\u6280\u672f\u90e8\u786e\u8ba4\u3002\u4e5f\u53ef\u4ee5\u5411\u6211\u53f8\u63d0\u4f9b\u66f4\u8be6\u7ec6\u7684\u4f7f\u7528\u5de5\u51b5\u4fe1\u606f\uff0c\u6280\u672f\u5de5\u7a0b\u5e08\u4e3a\u60a8\u9009\u578b\u5e76\u5b8c\u5584\u300a\u56de\u8f6c\u652f\u627f\u7528\u6237\u9009\u578b\u4fe1\u606f\u8868\u300b\u3002<\/p>\n
\u56de\u8f6c\u652f\u627f\u9009\u578b\u8ba1\u7b97\u6d41\u7a0b\u56fe<\/p>\n
<\/p>\n
\u6211\u53f8\u6837\u672c\u4e2d\u9644\u6709\u5404\u79cd\u578b\u53f7\u7684\u56de\u8f6c\u652f\u627f\u627f\u8f7d\u66f2\u7ebf\u56fe\uff0c\u8be5\u56fe\u53ef\u4ee5\u5e2e\u52a9\u60a8\u521d\u6b65\u5730\u9009\u62e9\u6240\u9700\u7684\u56de\u8f6c\u652f\u627f\u3002\u56fe\u4e2d\u6709\u4e24\u79cd\u66f2\u7ebf\uff0c\u4e00\u79cd\u662f\u56de\u8f6c\u652f\u627f\u4fdd\u6301\u9759\u6b62\u72b6\u6001\u65f6\u6240\u627f\u53d7\u7684\u6700\u5927\u8f7d\u8377\u3002\u53e6\u5916\u4e00\u79cd\u4e3a\u56de\u8f6c\u652f\u627f\u4e09\u79cd\u5f3a\u5ea6\uff088.8\\10.9\\12.9\uff09\u87ba\u6813\u6781\u8f7d\u8377\u66f2\u7ebf\uff0c\u5b83\u662f\u5728\u87ba\u6813\u5939\u6301\u957f\u5ea6\u4e3a\u87ba\u6813\u516c\u79f0\u76f4\u5f84\u76845\u500d\uff0c\u9884\u7d27\u529b\u4e3a\u87ba\u6813\u6750\u6599\u5c48\u670d\u6781\u9650\u768470%\u65f6\u786e\u5b9a\u7684\u3002<\/p>\n
<\/p>\n
\u5854\u540a\u5de5\u4f5c\u793a\u610f\u56fe<\/p>\n
\u4e0a\u56fe\u4e3a\u4e00\u5854\u540a\u5de5\u4f5c\u793a\u610f\u56fe \uff0c \u6240\u53d7\u8f7d\u8377\u5982\u56fe\u793a\u3002 \u5229\u7528\u627f\u8f7d\u66f2\u7ebf\u9009\u578b\u65f6 \uff0c \u6700\u5927\u8d1f\u8377\u7684\u8ba1\u7b95\u65b9\u6cd5\u5982\u4e0b\uff1a<\/p>\n
\u9996\u5148\u786e\u5b9a\u4e3b\u673a\uff08\u5854\u540a\uff09\u7684\u9759\u8f7d\u5b89\u5168\u7cfb\u6570fs, \u53ef\u7531\u9644\u8868\u67e5\u5f97fs=1.25\u3002<\/p>\n
1\u3001\u8003\u8651\u6700\u5927\u98ce\u529b\u4e3a\u516b\u7ea7\u65f6\uff0c \u6700\u5927\u5de5\u4f5c\u8f7d\u8377\u8ba1\u7b97\u5982\u4e0b\uff1a<\/p>\n
\u8f74\u5411\u529bFa=Ql+Pl+P2+P3+G<\/p>\n
\u5f84\u5411\u529bFr=w<\/p>\n
M=Ql Lmax+Pl Ll+P2 L2-P3 L2-G L3+W h<\/p>\n
2\u3001\u4e0d\u8ba1\u98ce\u529b\uff0c\u8003\u8651125\uff05\u6700\u5927\u5de5\u4f5c\u8f7d\u8377\u8ba1\u7b97\u5982\u4e0b\uff1a<\/p>\n
\u8f74\u5411\u529bFa=1.25 QJ+Pl+P2+P3+G<\/p>\n
\u5f84\u5411\u529bFr=0<\/p>\n
\u503e\u8986\u529b\u77e9M=l.25 Ql Lmax+Pl Ll+P2 L2- P3 L2-G L3<\/p>\n
\u4f8b\uff1a\u5df2\u77e5\u4e00\u5854\u540a\u5728\u5740\u5927\u5de5\u4f5c\u8d1f\u8377\u65f6\u5e76\u4e14\u540a\u81c2\u8fbe\u5230\u6700\u5927\u5e45\u503c\u5982\u4e0b\uff1a<\/p>\n
Q1 =400KN; Lmax=20m<\/p>\n
P1=20KN; L1=10m<\/p>\n
P2=10KN; L2=1m<\/p>\n
P3=I00KN; S=0.5m<\/p>\n
G=1000KN; L3=2m<\/p>\n
W=30KN; h=15m<\/p>\n
Fa=Q 1 +P 1 +P2+P3+G<\/p>\n
=400+20+10+100+1000<\/p>\n
=1530KN<\/p>\n
Fr=30KN<\/p>\n
M=Q1Lmax+P1 L1+P2 L2-P3 L2- G L3+W h<\/p>\n
=400\u00a0 20+20 10+10 1-100 0.5-1000 2+30 15<\/p>\n
=6610KNm<\/p>\n
Fa=l.25 Q1+P1+P2+P3+G<\/p>\n
=1.25 400+20+10+100+1000<\/p>\n
=1630KN<\/p>\n
Fr=0<\/p>\n
M=l.25 Q1 Lmax+Pl L1+P2 L2-P3 L2- G L3<\/p>\n
=1.25 400 20+20 10+10 1-JOO 0.5-1000 2<\/p>\n
=8160KNm<\/p>\n
Fa=1530KN Fr=0<\/p>\n
M=6160KNm<\/p>\n
\u9009\u7528\u7b2c\u4e8c\u79cd\u8d1f\u8377\u4f5c\u4e3a\u9759\u6001\u8ba1\u7b97\u7684\u5de5\u4f5c\u8d1f\u8377\uff0c\u6309\u7167\u9644\u8868B\u7684\u8981\u6c42\u5854\u5f0f\u8d77\u91cd\u673a\u9009\u62e9\u4e09\u6392\u6eda\u67f1\u5f0f\u56de\u8f6c\u652f\u627f\u3002<\/p>\n
\u8ba1\u7b97\u9759\u6001\u53c2\u7167\u8d1f\u8377\uff1a<\/p>\n
Fa’=1630 \u00a01.25=2037.5KN \u00a0Fa=1530KN<\/p>\n
M’=8160 \u00a0l.25=10200KNm\u00a0 Fr=0<\/p>\n
\u800c\u87ba\u6813\u7684\u8ba1\u7b97\u8f7d\u8377\u4e3a\uff1a<\/p>\n
Fa=1610KN<\/p>\n
M=8160KNm<\/p>\n
\u6839\u636e\u4e0a\u8ff0\u7684\u8ba1\u7b97\u7ed3\u679c\uff0c\u5728\u5404\u79cd\u4e09\u6392\u6eda\u67f1\u7684\u56de\u8f6c\u652f\u627f\u7684\u627f\u8f7d\u66f2\u7ebf\u4e2d\u9009\u62e9\uff0c\u9009\u7528131.45.1250\u56de\u8f6c\u652f\u627f\u3002<\/p>\n
<\/p>\n
1\u7ebf\u4e3a\u9759\u6001\u627f\u8f7d\u66f2\u7ebf\uff1b 8.8 \u3001 10.9\u4e3a\u87ba\u6813\u627f\u8f7d\u66f2\u7ebf\uff1ba=\u9759\u6001\u8f7d\u8377\uff0cb-\u87ba\u6813\u8f7d\u8377\u70b9a\u70b9\u5728\u9759\u6001\u627f\u8f7d\u66f2\u7ebf1 \u7684\u4e0b\u65b9\uff0c\u56e0\u6b64\u6ee1\u8db3\u8981\u6c42. b\u70b9\u572810.9\u7ea7\u87ba\u6813\u627f\u8f7d\u66f2\u7ebf\u4e0b\u65b9\uff0c\u56e0\u6b64\u9009\u62e910.9\u7ea7\u87ba\u6813\u53ef\u4ee5\u6ee1\u8db3\u8981\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u56de\u8f6c\u652f\u627f\u7684\u9009\u578b\u9700\u8981\u7684\u6280\u672f\u53c2\u6570 \u56de\u8f6c\u652f\u627f\u7684\u8f7d\u8377\uff0c\u5373\u4e0e\u56de [\u2026]<\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"yoast_head":"\n