{"id":3799,"date":"2020-11-10T08:03:22","date_gmt":"2020-11-09T23:03:22","guid":{"rendered":"https:\/\/tetsumag.com\/?p=3799"},"modified":"2026-08-01T13:56:57","modified_gmt":"2026-08-01T04:56:57","slug":"293","status":"publish","type":"post","link":"https:\/\/tetsumag.com\/blog\/2020\/11\/10\/293\/","title":{"rendered":"\u5408\u677f\u30fb\u7aef\u592a\u6750\u306e\u305f\u308f\u307f\u91cf\u306e\u8a08\u7b97\u306b\u3064\u3044\u3066"},"content":{"rendered":"\n<p>\u4f7f\u7528\u3055\u308c\u308b\u90e8\u6750\u304c\u7834\u58ca\u3055\u308c\u306a\u3044\u304b\u3069\u3046\u304b\u306f\u8a31\u5bb9\u5fdc\u529b\u5ea6\u8a2d\u8a08\u6cd5\u3067\u8a08\u7b97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u5408\u677f\u3068\u7aef\u592a\u6750\u306e\u305f\u308f\u307f\u91cf\u3092\u8a08\u7b97\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n<p>\u7169\u96d1\u306a\u8a08\u7b97\u5f0f\u304c\u51fa\u3066\u304d\u307e\u3059\u304c\u3001\u3069\u306e\u3088\u3046\u306b\u8a08\u7b97\u3057\u3066\u3044\u308b\u306e\u304b\u7406\u89e3\u3067\u304d\u3066\u3044\u308c\u3070\u5341\u5206\u3067\u3059\u3002<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"NVxsungJTf\"><p><a href=\"https:\/\/www.tetsumag.com\/2020\/10\/07\/40\/\">\u9244\u7b4b\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u306e\u8a2d\u8a08\u306b\u3064\u3044\u3066<\/a><\/p><\/blockquote>\n<p><iframe class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&#8220;\u9244\u7b4b\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u306e\u8a2d\u8a08\u306b\u3064\u3044\u3066&#8221; &#8212; \u3066\u3064\u307e\u3050\" src=\"https:\/\/www.tetsumag.com\/2020\/10\/07\/40\/embed\/#?secret=sb4LfB5UtY#?secret=NVxsungJTf\" data-secret=\"NVxsungJTf\" width=\"500\" height=\"282\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_38 counter-hierarchy ez-toc-counter ez-toc-transparent ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p 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title=\"\u7167\u67fb\u7d50\u679c\u306b\u3064\u3044\u3066\">\u7167\u67fb\u7d50\u679c\u306b\u3064\u3044\u3066<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/tetsumag.com\/blog\/2020\/11\/10\/293\/#%E5%A4%96%E7%AB%AF%E6%9D%90%E3%81%AE%E6%A4%9C%E8%A8%8E%E3%81%AB%E3%81%A4%E3%81%84%E3%81%A6\" title=\"\u5916\u7aef\u6750\u306e\u691c\u8a0e\u306b\u3064\u3044\u3066\">\u5916\u7aef\u6750\u306e\u691c\u8a0e\u306b\u3064\u3044\u3066<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/tetsumag.com\/blog\/2020\/11\/10\/293\/#%E8%A8%AD%E8%A8%88%E6%9D%A1%E4%BB%B6%E3%81%AB%E3%81%A4%E3%81%84%E3%81%A6-3\" title=\"\u8a2d\u8a08\u6761\u4ef6\u306b\u3064\u3044\u3066\">\u8a2d\u8a08\u6761\u4ef6\u306b\u3064\u3044\u3066<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" 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class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><a href=\"http:\/\/www.tetsumag.com\/wp-content\/uploads\/2020\/11\/202303210828.jpg\"><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/www.tetsumag.com\/wp-content\/uploads\/2020\/11\/202303210828-1024x576.jpg\" alt=\"\" width=\"1024\" height=\"576\" class=\"aligncenter size-large wp-image-12532\" srcset=\"https:\/\/tetsumag.com\/blog\/wp-content\/uploads\/2020\/11\/202303210828-1024x576.jpg 1024w, https:\/\/tetsumag.com\/blog\/wp-content\/uploads\/2020\/11\/202303210828-768x432.jpg 768w, https:\/\/tetsumag.com\/blog\/wp-content\/uploads\/2020\/11\/202303210828-600x338.jpg 600w, https:\/\/tetsumag.com\/blog\/wp-content\/uploads\/2020\/11\/202303210828.jpg 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/p>\n<p>\u305f\u308f\u307f\u3092\u8a08\u7b97\u3059\u308b\u524d\u306b\u3001\u90e8\u6750\u3092\u4e00\u5b9a\u306e\u9577\u3055\u306e\u5358\u7d14\u6881\u3068\u3057\u3066\u30e2\u30c7\u30eb\u5316\u3057\u307e\u3059\u3002<\/p>\n<p>\u30e2\u30c7\u30eb\u5316\u3057\u305f\u90e8\u6750\u306b\u8377\u91cd\u304c\u4f5c\u7528\u3057\u305f\u3068\u304d\u3001\u90e8\u6750\u304c\u3069\u308c\u304f\u3089\u3044\u5909\u5316\u3057\u305f\u306e\u304b\u3092\u793a\u3057\u3066\u3044\u308b\u306e\u304c\u305f\u308f\u307f\u91cf\u3067\u3059\u3002<\/p>\n<p>\u5c0f\u96e3\u3057\u3044\u6559\u79d1\u66f8\u306b\u306f\u30c7\u30eb\u30bf(\u03b4)\u3067\u8868\u8a18\u3055\u308c\u307e\u3059\u3002<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"7MeLQYcrJi\"><p><a href=\"https:\/\/www.tetsumag.com\/2020\/10\/19\/52\/\">\u578b\u67a0\u306e\u8a2d\u8a08\u65b9\u6cd5\u306b\u3064\u3044\u3066<\/a><\/p><\/blockquote>\n<p><iframe class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&#8220;\u578b\u67a0\u306e\u8a2d\u8a08\u65b9\u6cd5\u306b\u3064\u3044\u3066&#8221; &#8212; \u3066\u3064\u307e\u3050\" src=\"https:\/\/www.tetsumag.com\/2020\/10\/19\/52\/embed\/#?secret=SPaYBms3zb#?secret=7MeLQYcrJi\" data-secret=\"7MeLQYcrJi\" width=\"500\" height=\"282\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E8%A8%B1%E5%AE%B9%E3%81%9F%E3%82%8F%E3%81%BF%E9%87%8F%E3%81%AB%E3%81%A4%E3%81%84%E3%81%A6\"><\/span>\u8a31\u5bb9\u305f\u308f\u307f\u91cf\u306b\u3064\u3044\u3066<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u5408\u677f\u30fb\u7aef\u592a\u6750\u306e\u305f\u308f\u307f\u91cf\u3092\u8a08\u7b97\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\" title=\"\">\u305b\u304d\u677f\u306e\u8a31\u5bb9\u305f\u308f\u307f\u03b4=3mm\r\n\r\n\u7aef\u592a\u6750\u306e\u8a31\u5bb9\u305f\u308f\u307f=L\/300mm\r\n(L\u306f\u7aef\u592a\u6750\u306e\u30b9\u30d1\u30f3)\r\n\r\n<\/pre>\n<p>\u305b\u304d\u677f\u306b\u306f\u5408\u677f\uff08t =12mm\uff09\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E8%A8%AD%E8%A8%88%E6%9D%A1%E4%BB%B6%E3%81%AB%E3%81%A4%E3%81%84%E3%81%A6\"><\/span>\u8a2d\u8a08\u6761\u4ef6\u306b\u3064\u3044\u3066<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\" title=\"\">\u5408\u677f\u306b\u4f5c\u7528\u3059\u308b\u5fdc\u529b\u306e\u5358\u4f4d\u8377\u91cdW0=28.6KN\/m^2\r\n\u8377\u91cd\u5206\u62c5\u5e45=0.9m\r\n\u6881\u6750\u9577\u3055L=0.3m\r\n\u65ad\u9762\u4fc2\u6570Zx=21600mm^3\r\n(bh^2\/6=900*12^2\/6mm^3)\r\n\u65ad\u9762\u4e8c\u6b21\u30e2\u30fc\u30e1\u30f3\u30c8Ix=129600mm^4\r\n(bh^3\/12=900*12^3\/12mm^4)\r\n\u30e4\u30f3\u30b0\u4fc2\u6570E=5.5*10^3N\/mm^2\r\n\r\n<\/pre>\n<p><a href=\"http:\/\/www.tetsumag.com\/wp-content\/uploads\/2020\/11\/202303210829.jpg\"><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/www.tetsumag.com\/wp-content\/uploads\/2020\/11\/202303210829-1024x576.jpg\" alt=\"\" width=\"1024\" height=\"576\" class=\"aligncenter size-large wp-image-12534\" srcset=\"https:\/\/tetsumag.com\/blog\/wp-content\/uploads\/2020\/11\/202303210829-1024x576.jpg 1024w, https:\/\/tetsumag.com\/blog\/wp-content\/uploads\/2020\/11\/202303210829-768x432.jpg 768w, https:\/\/tetsumag.com\/blog\/wp-content\/uploads\/2020\/11\/202303210829-600x338.jpg 600w, https:\/\/tetsumag.com\/blog\/wp-content\/uploads\/2020\/11\/202303210829.jpg 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/p>\n<p>\u5408\u677f\uff08\u5e45 900mm \u3042\u305f\u308a\uff09\u306b\u4f5c\u7528\u3059\u308b\u8377\u91cd\u306f<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\" title=\"\">W=W0*0.9=25.7KN\/m\r\n\r\n<\/pre>\n<p>\u5185\u7aef\u6750\u306e\u9593\u9694\u306f\u3001300mm\u306a\u306e\u3067\u3001\u5408\u677f\u30923\u5f84\u9593\u9023\u7d9a\u6881\u3068\u3057\u3066\u8a08\u7b97\u3057\u307e\u3059\u3002<br \/>\n<img decoding=\"async\" loading=\"lazy\" class=\"wp-image-3158 size-full aligncenter\" src=\"https:\/\/tetsumag.com\/wp-content\/uploads\/2020\/10\/\u578b\u67a0\u652f\u4fdd\u5de5\u306e\u8a2d\u8a08\u246f.png\" alt=\"\" width=\"640\" height=\"597\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E7%85%A7%E6%9F%BB%E7%B5%90%E6%9E%9C%E3%81%AB%E3%81%A4%E3%81%84%E3%81%A6\"><\/span>\u7167\u67fb\u7d50\u679c\u306b\u3064\u3044\u3066<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\" title=\"\">\u66f2\u3052\u30e2\u30fc\u30e1\u30f3\u30c8\r\nM=WL^2\/10=25.7*0.3^2\/10=0.231KN*m\r\n\r\n\u66f2\u3052\u5fdc\u529b\u5ea6\r\n\u03c3=M\/Zx=231000\/21600=10.7N\/mm^2\r\n\r\n\u305f\u308f\u307f\u91cf\r\n\u03b4=W*L^4\/137.6EIx\r\n=2.1mm&lt;3.0mm\u2192OK!!\r\n\r\n<\/pre>\n<h2><span class=\"ez-toc-section\" id=\"%E5%86%85%E7%AB%AF%E6%9D%90%E3%81%AE%E6%A4%9C%E8%A8%8E%E3%81%AB%E3%81%A4%E3%81%84%E3%81%A6\"><\/span>\u5185\u7aef\u6750\u306e\u691c\u8a0e\u306b\u3064\u3044\u3066<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u5185\u7aef\u592a\u306b\u306f\u3001\u89d2\u92fc\u7ba1\uff08\u25a1\uff0d60\u00d760\u00d72.3\uff0cJIS G3466 STKR400\uff09\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E8%A8%AD%E8%A8%88%E6%9D%A1%E4%BB%B6%E3%81%AB%E3%81%A4%E3%81%84%E3%81%A6-2\"><\/span>\u8a2d\u8a08\u6761\u4ef6\u306b\u3064\u3044\u3066<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\" title=\"\">\u7aef\u592a\u6750\u306b\u4f5c\u7528\u3059\u308b\u5fdc\u529b\u306e\u5358\u4f4d\u8377\u91cdW0=28.6KN\/m^2\r\n\u8377\u91cd\u5206\u62c5\u5e45=0.3m\r\n\u6881\u6750\u9577\u3055L=0.9m\r\n\u305b\u3093\u65ad\u65ad\u9762\u7a4dA=255mm^2\r\n\u65ad\u9762\u4fc2\u6570Zx=9440mm^3\r\n\u65ad\u9762\u4e8c\u6b21\u30e2\u30fc\u30e1\u30f3\u30c8Ix=283000mm^4\r\n\u305b\u3093\u65ad\u4fc2\u6570K=1.0\r\n\u30e4\u30f3\u30b0\u4fc2\u6570E=2.0*10^5N\/mm^2\r\n\r\n<\/pre>\n<p>\u5185\u7aef\u592a\u6750\u306e\u9593\u9694\u306f 300mm \u3067\u3042\u308a\u3001\u90e8\u6750 1 \u672c\u3042\u305f\u308a\u306b\u4f5c\u7528\u3059\u308b\u8377\u91cd\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\" title=\"\">W=W0*0.3=8.58KN\/m\r\n\r\n<\/pre>\n<p>\u5185\u7aef\u592a\u6750\u306e\u652f\u70b9\u3068\u306a\u308b\u5916\u7aef\u592a\u6750\u306e\u9593\u9694\u306f 900mm\u3067\u3001\u5185\u7aef\u592a\u6750\u3092\u7b49\u5206\u5e03\u8377\u91cd\u306e\u5358\u7d14\u6881\u3068\u3057\u3066\u8a08\u7b97\u3057\u307e\u3059\u3002<\/p>\n<p><a href=\"http:\/\/www.tetsumag.com\/wp-content\/uploads\/2020\/11\/202303210830.jpg\"><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/www.tetsumag.com\/wp-content\/uploads\/2020\/11\/202303210830-1024x576.jpg\" alt=\"\" width=\"1024\" height=\"576\" class=\"aligncenter size-large wp-image-12536\" srcset=\"https:\/\/tetsumag.com\/blog\/wp-content\/uploads\/2020\/11\/202303210830-1024x576.jpg 1024w, https:\/\/tetsumag.com\/blog\/wp-content\/uploads\/2020\/11\/202303210830-768x432.jpg 768w, https:\/\/tetsumag.com\/blog\/wp-content\/uploads\/2020\/11\/202303210830-600x338.jpg 600w, https:\/\/tetsumag.com\/blog\/wp-content\/uploads\/2020\/11\/202303210830.jpg 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E7%85%A7%E6%9F%BB%E7%B5%90%E6%9E%9C%E3%81%AB%E3%81%A4%E3%81%84%E3%81%A6-2\"><\/span>\u7167\u67fb\u7d50\u679c\u306b\u3064\u3044\u3066<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\" title=\"\">\u66f2\u3052\u30e2\u30fc\u30e1\u30f3\u30c8\r\nM=WL^2\/8=0.869KN*m\r\n\r\n\u66f2\u3052\u5fdc\u529b\u5ea6\r\n\u03c3=M\/Zx=92.1N\/mm^2\r\n\r\n\u305b\u3093\u65ad\u529b\r\nS=WL\/2=3.86KN\r\n\r\n\u305b\u3093\u65ad\u5fdc\u529b\u5ea6\r\n\u03c4=K*S\/A=15.1N\/mm^2\r\n\r\n\u305f\u308f\u307f\u91cf\r\n\u03b4=5*W*L^4\/384EIx\r\n=1.3mm&lt;3.0mm\u2192OK!!\r\n\r\n<\/pre>\n<h2><span class=\"ez-toc-section\" id=\"%E5%A4%96%E7%AB%AF%E6%9D%90%E3%81%AE%E6%A4%9C%E8%A8%8E%E3%81%AB%E3%81%A4%E3%81%84%E3%81%A6\"><\/span>\u5916\u7aef\u6750\u306e\u691c\u8a0e\u306b\u3064\u3044\u3066<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u5916\u7aef\u592a\u6750\u306b\u306f\u3001\u89d2\u92fc\u7ba1\uff082\u25a1\uff0d60\u00d760\u00d72.3\uff0cSTKR400\uff09\u3092 2 \u672c 1 \u7d44\u3067\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E8%A8%AD%E8%A8%88%E6%9D%A1%E4%BB%B6%E3%81%AB%E3%81%A4%E3%81%84%E3%81%A6-3\"><\/span>\u8a2d\u8a08\u6761\u4ef6\u306b\u3064\u3044\u3066<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\" title=\"\">\u7aef\u592a\u6750\u306b\u4f5c\u7528\u3059\u308b\u5fdc\u529b\u306e\u5358\u4f4d\u8377\u91cdW0=28.6KN\/m^2\r\n\u8377\u91cd\u5206\u62c5\u5e45=0.9m\r\n\u6881\u6750\u9577\u3055L=0.6m\r\n\u305b\u3093\u65ad\u65ad\u9762\u7a4dA=510mm^2\r\n\u65ad\u9762\u4fc2\u6570Zx=18880mm^3\r\n\u65ad\u9762\u4e8c\u6b21\u30e2\u30fc\u30e1\u30f3\u30c8Ix=566000mm^4\r\n\u305b\u3093\u65ad\u4fc2\u6570K=1.0\r\n\u30e4\u30f3\u30b0\u4fc2\u6570E=2.0*10^5N\/mm^2\r\n\r\n<\/pre>\n<p>\u5916\u7aef\u592a\u6750\u306e\u9593\u9694\u306f 900mm \u3067\u3001\u90e8\u6750 1 \u672c\u3042\u305f\u308a\u306b\u4f5c\u7528\u3059\u308b\u8377\u91cd\u306f\u3001<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\" title=\"\">W=W0*0.9=25.7KN\/m\r\n\r\n<\/pre>\n<p><a href=\"http:\/\/www.tetsumag.com\/wp-content\/uploads\/2020\/11\/202303210832.jpg\"><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/www.tetsumag.com\/wp-content\/uploads\/2020\/11\/202303210832-1024x576.jpg\" alt=\"\" width=\"1024\" height=\"576\" class=\"aligncenter size-large wp-image-12538\" srcset=\"https:\/\/tetsumag.com\/blog\/wp-content\/uploads\/2020\/11\/202303210832-1024x576.jpg 1024w, https:\/\/tetsumag.com\/blog\/wp-content\/uploads\/2020\/11\/202303210832-768x432.jpg 768w, https:\/\/tetsumag.com\/blog\/wp-content\/uploads\/2020\/11\/202303210832-600x338.jpg 600w, https:\/\/tetsumag.com\/blog\/wp-content\/uploads\/2020\/11\/202303210832.jpg 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/p>\n<p>\u5916\u7aef\u592a\u6750\u306e\u652f\u70b9\u3068\u306a\u308b\u30bb\u30d1\u30ec\u30fc\u30bf\u306e\u9593\u9694\u306f600mm \u3067\u3001\u5916\u7aef\u592a\u6750\u3092\u7b49\u5206\u5e03\u8377\u91cd\u306e\u5358\u7d14\u6881\u3068\u3057\u3066\u8a08\u7b97\u3057\u307e\u3059\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E7%85%A7%E6%9F%BB%E7%B5%90%E6%9E%9C%E3%81%AB%E3%81%A4%E3%81%84%E3%81%A6-3\"><\/span>\u7167\u67fb\u7d50\u679c\u306b\u3064\u3044\u3066<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\" title=\"\">\u66f2\u3052\u30e2\u30fc\u30e1\u30f3\u30c8\r\nM=WL^2\/8=1.16KN*m\r\n\r\n\u66f2\u3052\u5fdc\u529b\u5ea6\r\n\u03c3=M\/Zx=61.4N\/mm^2\r\n\r\n\u305b\u3093\u65ad\u529b\r\nS=WL\/2=7.71KN\r\n\r\n\u305b\u3093\u65ad\u5fdc\u529b\u5ea6\r\n\u03c4=K*S\/A=15.1N\/mm^2\r\n\r\n\u305f\u308f\u307f\u91cf\r\n\u03b4=5*W*L^4\/384EIx\r\n=0.4mm&lt;2.0mm\u2192OK!!\r\n\r\n<\/pre>\n<h2><span class=\"ez-toc-section\" id=\"%E3%82%BB%E3%83%91%E3%83%AC%E3%83%BC%E3%82%BF%E3%81%AE%E6%A4%9C%E8%A8%8E%E3%81%AB%E3%81%A4%E3%81%84%E3%81%A6\"><\/span>\u30bb\u30d1\u30ec\u30fc\u30bf\u306e\u691c\u8a0e\u306b\u3064\u3044\u3066<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u30bb\u30d1\u30ec\u30fc\u30bf 1 \u672c\u3042\u305f\u308a\u306b\u4f5c\u7528\u3059\u308b\u5f15\u5f35\u529b T \u306f\u3001\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E8%A8%AD%E8%A8%88%E6%9D%A1%E4%BB%B6%E3%81%AB%E3%81%A4%E3%81%84%E3%81%A6-4\"><\/span>\u8a2d\u8a08\u6761\u4ef6\u306b\u3064\u3044\u3066<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\" title=\"\">\u7aef\u592a\u6750\u306b\u4f5c\u7528\u3059\u308b\u5fdc\u529b\u306e\u5358\u4f4d\u8377\u91cdW0=28.6KN\/m^2\r\n\u8377\u91cd\u5206\u62c5\u5e45=0.9m\r\n\u6881\u6750\u9577\u3055L=0.6m\r\n\u8a31\u5bb9\u5f15\u5f35\u529bTf=20.5KN\/\u672c\r\n\r\n<\/pre>\n<h3><span class=\"ez-toc-section\" id=\"%E7%85%A7%E6%9F%BB%E7%B5%90%E6%9E%9C%E3%81%AB%E3%81%A4%E3%81%84%E3%81%A6-4\"><\/span>\u7167\u67fb\u7d50\u679c\u306b\u3064\u3044\u3066<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u8377\u91cd\u8ca0\u62c5\u9762\u7a4d A \u306f\u30010.9m\u00d70.6m \u306a\u306e\u3067\u3001<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\" title=\"\">A=0.9*0.6=0.54m^2\r\n\r\n<\/pre>\n<p><a href=\"http:\/\/www.tetsumag.com\/wp-content\/uploads\/2020\/11\/202303210833.jpg\"><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/www.tetsumag.com\/wp-content\/uploads\/2020\/11\/202303210833-1024x576.jpg\" alt=\"\" width=\"1024\" height=\"576\" class=\"aligncenter size-large wp-image-12540\" srcset=\"https:\/\/tetsumag.com\/blog\/wp-content\/uploads\/2020\/11\/202303210833-1024x576.jpg 1024w, https:\/\/tetsumag.com\/blog\/wp-content\/uploads\/2020\/11\/202303210833-768x432.jpg 768w, https:\/\/tetsumag.com\/blog\/wp-content\/uploads\/2020\/11\/202303210833-600x338.jpg 600w, https:\/\/tetsumag.com\/blog\/wp-content\/uploads\/2020\/11\/202303210833.jpg 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/p>\n<p>\u30bb\u30d1\u30ec\u30fc\u30bf 1 \u672c\u3042\u305f\u308a\u306b\u4f5c\u7528\u3059\u308b\u5f15\u5f35\u529b T (kN\/m2)\u306f\u3001\u8377\u91cd\u5206\u62c5\u9762\u7a4d\u306b\u4f5c\u7528\u3059\u308b\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u5074\u5727\u306a\u306e\u3067\u3001<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\" title=\"\">T=28.6*0.54=15.4KN\/\u672c\r\n15.4KN\/\u672c&lt;Tf=20.5KN\/\u672c\r\n\u2192OK!!\r\n\r\n<\/pre>\n<blockquote class=\"wp-embedded-content\" data-secret=\"dY9lED7eqe\"><p><a href=\"https:\/\/www.tetsumag.com\/2021\/08\/02\/02\/\">\u6881\u306e\u9244\u7b4b\u306e\u57fa\u672c\u3000\u914d\u7b4b\u3001\u62fe\u3044\u65b9\u3001\u5727\u63a5\u306e\u4f4d\u7f6e\u307e\u3067\u89e3\u8aac<\/a><\/p><\/blockquote>\n<p><iframe class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&#8220;\u6881\u306e\u9244\u7b4b\u306e\u57fa\u672c\u3000\u914d\u7b4b\u3001\u62fe\u3044\u65b9\u3001\u5727\u63a5\u306e\u4f4d\u7f6e\u307e\u3067\u89e3\u8aac&#8221; &#8212; \u3066\u3064\u307e\u3050\" src=\"https:\/\/www.tetsumag.com\/2021\/08\/02\/02\/embed\/#?secret=1VLBnojC5K#?secret=dY9lED7eqe\" data-secret=\"dY9lED7eqe\" width=\"500\" height=\"282\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"lXnzcAvkt5\"><p><a href=\"https:\/\/www.tetsumag.com\/2022\/01\/31\/259\/\">\u30b9\u30e9\u30d6\u306e\u57fa\u672c\u77e5\u8b58\u3068\u914d\u7b4b\u65b9\u6cd5\u306b\u3064\u3044\u3066<\/a><\/p><\/blockquote>\n<p><iframe class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&#8220;\u30b9\u30e9\u30d6\u306e\u57fa\u672c\u77e5\u8b58\u3068\u914d\u7b4b\u65b9\u6cd5\u306b\u3064\u3044\u3066&#8221; &#8212; \u3066\u3064\u307e\u3050\" src=\"https:\/\/www.tetsumag.com\/2022\/01\/31\/259\/embed\/#?secret=cRu3GMOJ8T#?secret=lXnzcAvkt5\" data-secret=\"lXnzcAvkt5\" width=\"500\" height=\"282\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u7528\u3055\u308c\u308b\u90e8\u6750\u304c\u7834\u58ca\u3055\u308c\u306a\u3044\u304b\u3069\u3046\u304b\u306f\u8a31\u5bb9\u5fdc\u529b\u5ea6\u8a2d\u8a08\u6cd5\u3067\u8a08\u7b97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 \u3053\u306e\u8a18\u4e8b\u3067\u306f\u5408\u677f\u3068\u7aef\u592a\u6750\u306e\u305f\u308f\u307f\u91cf\u3092\u8a08\u7b97\u3057\u3066\u307f\u307e\u3059\u3002 \u7169\u96d1\u306a\u8a08\u7b97\u5f0f\u304c\u51fa\u3066\u304d\u307e\u3059\u304c\u3001\u3069\u306e\u3088\u3046\u306b\u8a08\u7b97\u3057\u3066\u3044\u308b\u306e\u304b\u7406\u89e3\u3067\u304d\u3066\u3044\u308c\u3070\u5341\u5206\u3067\u3059\u3002 \u9244 &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/tetsumag.com\/blog\/2020\/11\/10\/293\/\"> <span class=\"screen-reader-text\">\u5408\u677f\u30fb\u7aef\u592a\u6750\u306e\u305f\u308f\u307f\u91cf\u306e\u8a08\u7b97\u306b\u3064\u3044\u3066<\/span> \u3082\u3063\u3068\u8aad\u3080 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