プレストレストコンクリート（PC）の説明をする前に，普通のコンクリートの性質について説明します。 コンクリートの性質 普通のコンクリートは，圧縮力（押される力）に対しては強く，引張力（引っ張る力）に弱いという性質を持って  <span><a href="http://site.kkn.co.jp/higashifukase1/prestressed-concrete/" class="readmore"> … 続きを読む &rarr;</a></span>{"id":353,"date":"2018-02-08T17:13:49","date_gmt":"2018-02-08T08:13:49","guid":{"rendered":"http:\/\/tec.kkn.co.jp\/bridges\/bandou\/?page_id=353"},"modified":"2018-02-08T09:58:51","modified_gmt":"2018-02-08T00:58:51","slug":"prestressed-concrete","status":"publish","type":"page","link":"http:\/\/site.kkn.co.jp\/higashifukase1\/prestressed-concrete\/","title":{"rendered":"\u30d7\u30ec\u30b9\u30c8\u30ec\u30b9\u30c8\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u3068\u306f"},"content":{"rendered":"<p>\u30d7\u30ec\u30b9\u30c8\u30ec\u30b9\u30c8\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\uff08PC\uff09\u306e\u8aac\u660e\u3092\u3059\u308b\u524d\u306b\uff0c\u666e\u901a\u306e\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u306e\u6027\u8cea\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<h3>\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u306e\u6027\u8cea<\/h3>\n<p>\u666e\u901a\u306e\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u306f\uff0c<strong>\u5727\u7e2e\u529b\uff08\u62bc\u3055\u308c\u308b\u529b\uff09\u306b\u5bfe\u3057\u3066\u306f\u5f37\u304f\uff0c\u5f15\u5f35\u529b\uff08\u5f15\u3063\u5f35\u308b\u529b\uff09\u306b\u5f31\u3044\u3068\u3044\u3046\u6027\u8cea<\/strong>\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u305d\u306e\u529b\u306e\u5dee\u306f\u7d0410\u500d\u3067\uff0c100\u30ad\u30ed\u306e\u91cd\u3055\u306b\u8010\u3048\u3066\u58ca\u308c\u306a\u3044\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u306e\u56fa\u307e\u308a\u3082\uff0c10\u30ad\u30ed\u306e\u91cd\u308a\u3092\u4e0b\u3052\u305f\u3060\u3051\u3067\u3072\u3073\u5272\u308c\uff0c\u58ca\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002<br \/>\n<a href=\"http:\/\/site.kkn.co.jp\/bandou\/wp-content\/uploads\/sites\/2\/2015\/01\/prestress01.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-361 size-full\" src=\"http:\/\/site.kkn.co.jp\/bandou\/wp-content\/uploads\/sites\/2\/2015\/01\/prestress01.jpg\" alt=\"\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u306e\u6027\u8cea\" width=\"600\" height=\"360\" \/><\/a><\/p>\n<h3>\u66f2\u3052\u306e\u529b\uff08\u66f2\u3052\u30e2\u30fc\u30e1\u30f3\u30c8\uff09<\/h3>\n<p>\u3068\u3053\u308d\u3067\uff0c\u6a4b\u6841\u3068\u3057\u3066\u6a4b\u306b\u67b6\u304b\u308b\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u6841\u306f\uff0c\u6a2a\u306b\u9577\u3044\u5f62\u3092\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><a href=\"http:\/\/site.kkn.co.jp\/bandou\/wp-content\/uploads\/sites\/2\/2015\/01\/prestress02.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-full wp-image-414\" src=\"http:\/\/site.kkn.co.jp\/bandou\/wp-content\/uploads\/sites\/2\/2015\/01\/prestress02.png\" alt=\"\u66f2\u3052\u306e\u529b\uff08\u66f2\u3052\u30e2\u30fc\u30e1\u30f3\u30c8\uff09\" width=\"600\" height=\"320\" \/><\/a>\u6a4b\u6841\u306b\u306f\u6a4b\u3067\u3042\u308b\u4ee5\u4e0a\uff0c\u5f53\u7136\u6a4b\u3092\u6e21\u308b\u4eba\u3084\u8eca\u306e\u91cd\u3055\u304c<strong>\u300c\u8377\u91cd\u300d<\/strong>\u3068\u3057\u3066\u304b\u304b\u3063\u3066\u304d\u307e\u3059\u3002<\/p>\n<p>\u6728\u306e\u677f\u3067\u3067\u304d\u305f\u6a4b\u3092\u30a4\u30e1\u30fc\u30b8\u3057\u3066\u3044\u305f\u3060\u304f\u3068\u308f\u304b\u308a\u307e\u3059\u304c\uff0c\u3060\u308c\u304b\u304c\u6a4b\u306e\u4e0a\u306b\u7acb\u3064\u3068\u6728\u306e\u677f\u304c\u305f\u308f\u307f\u307e\u3059\u3002\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u306f\u56fa\u3044\u306e\u3067\u60f3\u50cf\u3057\u306b\u304f\u3044\u3053\u3068\u3067\u3059\u304c\uff0c\u8eca\u304c\u4e57\u3063\u305f\u308a\u306a\u3069\u4e0a\u306b\u304b\u304b\u308b\u8377\u91cd\u304c\u5927\u304d\u3051\u308c\u3070\u540c\u3058\u3088\u3046\u306b\u305f\u308f\u3082\u3046\u3068\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u305f\u308f\u3080\u529b\u3092<strong>\u66f2\u3052\u306e\u529b\uff08\u66f2\u3052\u30e2\u30fc\u30e1\u30f3\u30c8\uff09<\/strong>\u3068\u3044\u3044\u307e\u3059\u3002\u66f2\u3052\u306e\u529b\u306b\u3088\u3063\u3066\uff0c<strong>\u66f2\u3052\u306e\u5185\u5074\u306b\u306f\u5727\u7e2e\u529b<\/strong>\u304c\u767a\u751f\u3057\uff0c<strong>\u66f2\u3052\u306e\u5916\u5074<\/strong>\uff08\u6a4b\u6841\u3067\u3042\u308c\u3070\u4e0b\u5074\uff09<strong>\u306b\u306f\u5f15\u5f35\u529b\u304c\u767a\u751f<\/strong>\u3057\u307e\u3059\u3002<\/p>\n<p>\u5148\u307b\u3069\u8aac\u660e\u3057\u305f\u3068\u304a\u308a\uff0c\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u306f\u5f15\u5f35\u529b\u306b\u975e\u5e38\u306b\u5f31\u3044\u6027\u8cea\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u306e\u3067\uff0c\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u306e\u6a4b\u6841\u306b\u66f2\u3052\u306e\u529b\u304c\u52a0\u308f\u308b\u3068\uff0c\u305d\u3053\u306b\u767a\u751f\u3057\u305f\u5f15\u5f35\u529b\u306b\u3088\u3063\u3066\u6a4b\u6841\u306f\u6728\u306e\u3088\u3046\u306b\u305f\u308f\u3080\u3053\u3068\u306a\u304f\u7c21\u5358\u306b\u58ca\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<p><a href=\"http:\/\/site.kkn.co.jp\/bandou\/wp-content\/uploads\/sites\/2\/2015\/01\/prestress03.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-392\" src=\"http:\/\/site.kkn.co.jp\/bandou\/wp-content\/uploads\/sites\/2\/2015\/01\/prestress03.png\" alt=\"\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u6841\" width=\"600\" height=\"258\" \/><\/a><\/p>\n<h3>\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u304b\u3089\u5f15\u5f35\u529b\u3092\u5c11\u306a\u304f\u3059\u308b\u5de5\u592b<\/h3>\n<p>\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u304c\u5f15\u5f35\u529b\u306b\u5f31\u3044\u306e\u3067\u3042\u308c\u3070\uff0c\u5f15\u5f35\u529b\u3092\u767a\u751f\u3055\u305b\u306a\u3051\u308c\u3070\uff0c\u58ca\u308c\u306b\u304f\u3044\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u6841\u3092\u4f5c\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u9244\u7b4b\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u3068\u3044\u3046\u8a00\u8449\u3067\u304a\u306a\u3058\u307f\u306e\u3088\u3046\u306b\uff0c\u9244\u7b4b\u3092\u6a4b\u6841\u306e\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u306e\u4e2d\u306b\u5165\u308c\u308b\u3053\u3068\u3067\u66f2\u3052\u306e\u529b\u306b\u3088\u308b\u5f15\u5f35\u529b\u306b\u5bfe\u6297\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u305f\u3060\u3057\uff0c\u9244\u7b4b\u306f\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u306b\u4f5c\u7528\u3059\u308b\u5f15\u5f35\u529b\u3092\u8ca0\u62c5\u3057\u3066\u304f\u308c\u307e\u3059\u304c\uff0c\u5f15\u5f35\u529b\u306b\u3088\u308b\u3072\u3073\u5272\u308c\u3092\u5b8c\u5168\u306b\u9632\u3050\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<p>\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u306b\u3072\u3073\u5272\u308c\u304c\u3067\u304d\u3066\u3057\u307e\u3046\u3068\uff0c\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u306e\u4e2d\u3078\u6c34\u304c\u5165\u308a\u3084\u3059\u304f\u306a\u308a\u9244\u7b4b\u304c\u9306\u3073\u3066\u3057\u307e\u3046\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u305d\u3053\u3067\u30d7\u30ec\u30b9\u30c8\u30ec\u30b9\u30c8\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u3092\u4f7f\u3063\u305f\u6a4b\u304c\u3064\u304f\u3089\u308c\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<p><a href=\"http:\/\/site.kkn.co.jp\/bandou\/wp-content\/uploads\/sites\/2\/2015\/01\/prestress04.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-390\" src=\"http:\/\/site.kkn.co.jp\/bandou\/wp-content\/uploads\/sites\/2\/2015\/01\/prestress04.png\" alt=\"\u9244\u7b4b\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u6841\" width=\"599\" height=\"260\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<h3>\u30d7\u30ec\u30b9\u30c8\u30ec\u30b9\u30c8\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u3068\u306f<\/h3>\n<p>\u30d7\u30ec\u30b9\u30c8\u30ec\u30b9\u30c8\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u3068\u306f\uff0cPre-stressed\uff08pre=\u524d\u3082\u3063\u3066\uff0cstressed=\u5727\u529b\u3092\u304b\u3051\u308b\uff09\uff0c\u3064\u307e\u308a\u3042\u3089\u304b\u3058\u3081\u5727\u7e2e\u529b\u3092\u304b\u3051\u305f\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u306e\u3053\u3068\u3067\u3059\u3002<\/p>\n<p>\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u306e\u4e2d\u306b\u5165\u308c\u305fPC\u92fc\u7dda\u3092\u5f15\u3063\u5f35\u308b\u3053\u3068\u3067\uff0c\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u306b\u5727\u7e2e\u529b\u3092\u304b\u3051\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<p>\u3059\u308b\u3068\uff0c\u30d7\u30ec\u30b9\u30c8\u30ec\u30b9\u3092\u304b\u3051\u305f\u6a4b\u6841\u306b\u4e0a\u304b\u3089\u8377\u91cd\u3092\u304b\u3051\u3066\u3082\uff0c\u3042\u3089\u304b\u3058\u3081\u304b\u304b\u3063\u305f\u5727\u7e2e\u529b\u306e\u304a\u304b\u3052\u3067\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u304c\u3072\u3073\u5272\u308c\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u4e07\u304c\u4e00\uff0c\u5927\u304d\u306a\u8377\u91cd\u304c\u304b\u304b\u3063\u3066\u3072\u3073\u5272\u308c\u304c\u5165\u3063\u305f\u3068\u3057\u3066\u3082\uff0c\u6c34\u5e73\u65b9\u5411\u306b\u5727\u7e2e\u529b\u304c\u304b\u304b\u3063\u3066\u3044\u308b\u304a\u304b\u3052\u3067\u8377\u91cd\u304c\u306a\u304f\u306a\u308c\u3070\u3072\u3073\u5272\u308c\u3082\u9589\u3058\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<p><a href=\"http:\/\/site.kkn.co.jp\/bandou\/wp-content\/uploads\/sites\/2\/2015\/01\/prestress05.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-424 size-full\" src=\"http:\/\/site.kkn.co.jp\/bandou\/wp-content\/uploads\/sites\/2\/2015\/01\/prestress05.png\" alt=\"\u30d7\u30ec\u30b9\u30c8\u30ec\u30b9\u30c8\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u6841\" width=\"600\" height=\"315\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>\u3053\u306e\u3088\u3046\u306b\u4fbf\u5229\u306a\u30d7\u30ec\u30b9\u30c8\u30ec\u30b9\u30c8\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u306f\uff0c\u6a4b\u3060\u3051\u3067\u306f\u306a\u304f\u8caf\u6c34\u30bf\u30f3\u30af\u306a\u3069\u69d8\u3005\u306a\u5834\u6240\u3067\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u7686\u3055\u3093\u306e\u5468\u308a\u306b\u3042\u308b\u69cb\u9020\u7269\u3082\u30d7\u30ec\u30b9\u30c8\u30ec\u30b9\u30c8\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u3067\u4f5c\u3089\u308c\u305f\u3082\u306e\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u3082\u3057\u3088\u304b\u3063\u305f\u3089\u63a2\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":null,"protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"http:\/\/site.kkn.co.jp\/higashifukase1\/wp-json\/wp\/v2\/pages\/353"}],"collection":[{"href":"http:\/\/site.kkn.co.jp\/higashifukase1\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/site.kkn.co.jp\/higashifukase1\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/site.kkn.co.jp\/higashifukase1\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/site.kkn.co.jp\/higashifukase1\/wp-json\/wp\/v2\/comments?post=353"}],"version-history":[{"count":0,"href":"http:\/\/site.kkn.co.jp\/higashifukase1\/wp-json\/wp\/v2\/pages\/353\/revisions"}],"wp:attachment":[{"href":"http:\/\/site.kkn.co.jp\/higashifukase1\/wp-json\/wp\/v2\/media?parent=353"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}