{"id":5043,"date":"2019-11-15T11:13:34","date_gmt":"2019-11-15T03:13:34","guid":{"rendered":"https:\/\/www.xzfenghe.com\/?page_id=5043"},"modified":"2023-05-14T10:59:21","modified_gmt":"2023-05-14T02:59:21","slug":"danpaiqiushixuanxing","status":"publish","type":"page","link":"https:\/\/www.xzfenghe.com\/selection-and-calculation\/danpaiqiushixuanxing\/","title":{"rendered":"\u5355\u6392\u7403\u5f0f\u9009\u578b"},"content":{"rendered":"
\u00a0<\/p>\n
\u56de\u8f6c\u652f\u627f\u6240\u627f\u53d7\u7684\u4f5c\u7528\u529b\u5305\u62ec\uff1a\u603b\u8f74\u5411\u529b Fa\uff08kN\uff09\uff0c\u603b\u503e\u7ffb\u529b\u77e9 M\uff08kN\u00b7m\uff09\uff0c\u5728\u529b\u77e9\u4f5c\u7528\u5e73\u9762\u7684\u603b\u5f84\u5411\u529b Fr\uff08kN\uff09\u3002\u9009\u578b\u8ba1\u7b97\u65f6\uff0c\u9759\u6001\u5de5\u51b5\u4e0b\u56de\u8f6c\u652f\u627f\u6240\u627f\u53d7\u7684\u4f5c\u7528\u529b Fa\u3001M\u3001Fr \u548c\u52a8\u6001\u5de5\u51b5\u6240\u627f\u53d7\u7684\u4f5c\u7528\u529b Fa\u3001M\u3001Fr \u5e94\u5206\u522b\u8ba1\u7b97\u3002\u5982\u679c\u4e3b\u673a\u505a\u63d0\u5347\u52a8\u4f5c\uff0c\u5219\u63d0\u5347\u8f7d\u8377\u5e94\u4e58\u4ee5\u63d0\u5347\u60ef\u6027\u7cfb\u6570 K\uff0cK=1.25\u3002<\/p>\n
\u56de\u8f6c\u652f\u627f\u5b89\u5168\u7cfb\u6570\u8868<\/strong><\/p>\n M\u2019=Mfs<\/p>\n II\u03b1=45\u00b0 M’=\u00a01.225\u00a0Mfs<\/p>\n \u6309\u52a8\u6001\u5de5\u51b5\u6821\u6838\u5bff\u547d: M’=Mfd<\/p>\n II\u03b1=45\u00b0 M’\u00a0=\u00a01.225\u00a0Mfd \u591a\u5e74\u6765\uff0c\u4e30\u79be\u56de\u8f6c\u652f\u627f\u7684\u4ea7\u54c1\u8d28\u91cf\u3001\u4f7f\u7528\u5bff\u547d\u4e00\u76f4\u5728\u7cbe\u76ca\u6c42\u7cbe\uff0c\u6211\u4eec\u7684\u552e\u524d\u5de5\u7a0b\u5e08\u56e2\u961f\u4e13\u6ce8\u60a8\u7684\u6bcf\u4e00\u6b21\u4ea7\u54c1\u9009\u578b\u8981\u6c42\uff0c\u4e3a\u60a8\u63d0\u4f9b\u7ecf\u6d4e\u53ef\u9760\u7684\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n\n\n <\/p>\n","protected":false},"excerpt":{"rendered":" \u00a0 \u56de\u8f6c\u652f\u627f\u6240\u627f\u53d7\u7684\u4f5c\u7528\u529b\u5305\u62ec\uff1a\u603b\u8f74\u5411\u529b Fa\uff08kN [\u2026]<\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":492,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"yoast_head":"\n
\u5355\u6392\u56db\u70b9\u63a5\u89e6\u7403\u5f0f\u56de\u8f6c\u652f\u627f\u9009\u578b\u8ba1\u7b97\u5206\u522b\u6309\u627f\u8f7d\u89d245\u00b0\u548c60\u00b0\u4e24\u79cd\u60c5\u51b5\u8fdb\u884c\u3002\u6309\u9759\u6001\u5de5\u51b5\u9009\u578b:
I\u00a0\u03b1=60\u00b0
Fa’=\u00a0(Fa+\u00a05.046Fr)\u00a0fs<\/p>\n
Fa’=\u00a0(1.225Fa+\u00a02.676Fr)\u00a0fs<\/p>\n
I\u03b1=60\u00b0
Fa’=\u00a0(Fa+\u00a05.046Fr)\u00a0fd<\/p>\n
Fa’=\u00a0(1.225\u00a0Fa+\u00a02.676Fr)fd<\/p>\n
\u7136\u540e\u5728\u627f\u8f7d\u66f2\u7ebf\u56fe\u4e0a\u627e\u51fa\u4ee5\u4e0a\u4e24\u70b9\uff0c\u5176\u4e2d\u4e00\u70b9\u5728\u66f2\u7ebf\u4ee5\u4e0b\u5373\u53ef\u3002<\/p>\n