{"id":21488,"date":"2023-06-17T11:09:20","date_gmt":"2023-06-17T03:09:20","guid":{"rendered":"http:\/\/www.jdcui.com\/?p=21488"},"modified":"2026-02-18T17:53:20","modified_gmt":"2026-02-18T09:53:20","slug":"%e7%a7%91%e7%a0%94%e8%bd%af%e4%bb%b6opensees-osselfcenteringtest-opensees-selfcentering-material-test-opensees-selfcentering-%e6%97%97%e5%b8%9c%e5%9e%8b%e6%bb%9e%e5%9b%9e%e6%a8%a1%e5%9e%8b","status":"publish","type":"post","link":"http:\/\/www.jdcui.com\/?p=21488","title":{"rendered":"[\u7a0b\u5e8f] OSSCTest: OpenSees SelfCentering Material Test [OpenSees SelfCentering \u65d7\u5e1c\u578b\u6ede\u56de\u6a21\u578b\u6d4b\u8bd5]"},"content":{"rendered":"<p><span style=\"background-color: #ccffff; color: #ff00ff;\"><strong>\u5b9e\u5e72\u3001\u5b9e\u8df5\u3001\u79ef\u7d2f\u3001\u601d\u8003\u3001\u521b\u65b0\u3002<\/strong><\/span><\/p>\n<hr \/>\n<ul style=\"list-style-type: square;\">\n<li><span style=\"background-color: #ffff99;\"><strong>\u7a0b\u5e8f\u56fe\u6807\u00a0<span style=\"color: #0000ff;\">( Icon )<\/span><\/strong><\/span><\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-21492\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/06\/LOGO.png\" alt=\"\" width=\"168\" height=\"168\" \/><\/p>\n<ul style=\"list-style-type: square;\">\n<li><span style=\"background-color: #ffff99;\"><strong>\u7a0b\u5e8f\u4ecb\u7ecd\u00a0<span style=\"color: #0000ff;\">( Introduction)<\/span><\/strong><\/span><\/li>\n<\/ul>\n<p>\u5e94\u7f51\u53cb\u7684\u8981\u6c42\uff0c\u7f16\u5199OpenSees\u4e2d\u7684SelfCenteringMaterial\u672c\u6784\u6d4b\u8bd5\u7a0b\u5e8f\uff0c\u5173\u4e8eSelfCenteringMaterial\u7684\u4ecb\u7ecd\u5728OpenSees Wiki\u4e2d\u627e\u5230\uff1a<strong><a href=\"https:\/\/opensees.berkeley.edu\/wiki\/index.php\/SelfCentering_Material\" target=\"_blank\" rel=\"noopener\">SelfCentering Material &#8211; OpenSeesWiki (berkeley.edu)<\/a><\/strong><\/p>\n<p>\u5176\u547d\u4ee4\u4e5f\u8d34\u5230\u4e0b\u9762\uff1a<\/p>\n<p><code>This command is used to construct a uniaxial self-centering (flag-shaped) material object with optional non-recoverable slip behaviour and an optional stiffness increase at high strains (bearing behaviour).<\/code><\/p>\n<p><code>This material is primarily used to model a self-centering energy-dissipative (SCED) brace (Christopoulos et al., 2008) with the option to model the slippage of an external friction fuse (which causes non-recoverable deformation above a given brace strain). In practice, the external friction fuse is used to limit the amount of force in the brace (since the post-activation stiffness is generally non-zero). The bearing option is used to approximately model the effect of bolt bearing in the brace or external fuse mechanisms, which causes a steep increase in the stiffness of the brace. For self-centering energy-dissipative brace design, this bearing effect model may be used to impose a limit on slip or activation strain based on the anticipated available strain capacity of the mechanism. Note that this bearing effect is only intended to be a flag to indicate the existence of bearing; the SCED brace system should be designed such that the brace will not experience such bearing in practice.<\/code><\/p>\n<p><code>This material type could potentially be used for any comparable self-centering system that exhibits a flag-shaped hysteretic response (for example: rocking wall systems if the uniaxial material is used as a moment\/rotation hysteresis).<\/code><\/p>\n<table>\n<tbody>\n<tr>\n<td><code><b>uniaxialMaterial SelfCentering $matTag $k1 $k2 $sigAct $beta &lt;$epsSlip&gt; &lt;$epsBear&gt; &lt;rBear&gt;<\/b><\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<table>\n<tbody>\n<tr>\n<td><code><b>$matTag<\/b><\/code><\/td>\n<td><code>integer tag identifying material<\/code><\/td>\n<\/tr>\n<tr>\n<td><code><b>$k1<\/b><\/code><\/td>\n<td><code>Initial Stiffness<\/code><\/td>\n<\/tr>\n<tr>\n<td><code><b>$k2<\/b><\/code><\/td>\n<td><code>Post-Activation Stiffness (0&lt;$k2&lt;$k1)<\/code><\/td>\n<\/tr>\n<tr>\n<td><code><b>$sigAct<\/b><\/code><\/td>\n<td><code>Forward Activation Stress\/Force<\/code><\/td>\n<\/tr>\n<tr>\n<td><code><b>$beta<\/b><\/code><\/td>\n<td><code>Ratio of Forward to Reverse Activation Stress\/Force<\/code><\/td>\n<\/tr>\n<tr>\n<td><code><b>$epsSlip<\/b><\/code><\/td>\n<td><code>slip Strain\/Deformation (if $epsSlip = 0, there will be no slippage)<\/code><\/td>\n<\/tr>\n<tr>\n<td><code><b>$epsBear<\/b><\/code><\/td>\n<td><code>Bearing Strain\/Deformation (if $epsBear = 0, there will be no bearing)<\/code><\/td>\n<\/tr>\n<tr>\n<td><code><b>$rBear<\/b><\/code><\/td>\n<td><code>Ratio of Bearing Stiffness to Initial Stiffness $k1<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-21611\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/06\/ModelParameters-min.png\" alt=\"\" width=\"1031\" height=\"955\" srcset=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/06\/ModelParameters-min.png 1031w, http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/06\/ModelParameters-min-768x711.png 768w\" sizes=\"auto, (max-width: 1031px) 100vw, 1031px\" \/><\/p>\n<p><strong>( picture from\u00a0 <a href=\"https:\/\/opensees.berkeley.edu\/OpenSees\/manuals\/usermanual\/4160.htm\" target=\"_blank\" rel=\"noopener\">https:\/\/opensees.berkeley.edu\/OpenSees\/manuals\/usermanual\/4160.htm<\/a> )<\/strong><\/p>\n<p><strong><span style=\"font-size: 10pt;\">OSSelfCenteringTest\u7684\u529f\u80fd\u662f\uff0c\u53ef\u63d0\u4f9b\u7528\u6237\u5bfc\u5165\u4f4d\u79fb\u5386\u7a0b\uff0c\u6307\u5b9a\u6750\u6599\u7684\u53c2\u6570\uff0c\u83b7\u5f97\u76f8\u5e94\u7684\u529b-\u4f4d\u79fb\u6ede\u56de\u66f2\u7ebf\uff0c\u7528\u4e8e\u6d4b\u8bd5\u4e0d\u540c\u53c2\u6570\u5bf9\u6750\u6599\u6ede\u56de\u6027\u80fd\u7684\u5f71\u54cd\u3002<\/span><\/strong><\/p>\n<ul style=\"list-style-type: square;\">\n<li><span style=\"background-color: #ffff99;\"><strong>\u7a0b\u5e8f\u754c\u9762\u00a0<span style=\"color: #0000ff;\">( Program Interface\u00a0<\/span><\/strong><span style=\"color: #0000ff;\">)<\/span><\/span><\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-21500\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/06\/OSSCTEST_1-min.png\" alt=\"\" width=\"1227\" height=\"990\" srcset=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/06\/OSSCTEST_1-min.png 1227w, http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/06\/OSSCTEST_1-min-768x620.png 768w\" sizes=\"auto, (max-width: 1227px) 100vw, 1227px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-21501\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/06\/OSSCTEST_2-min.png\" alt=\"\" width=\"1227\" height=\"990\" srcset=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/06\/OSSCTEST_2-min.png 1227w, http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/06\/OSSCTEST_2-min-768x620.png 768w\" sizes=\"auto, (max-width: 1227px) 100vw, 1227px\" \/><\/p>\n<p>\u4ee5\u4e0b\u662f\u51e0\u4e2a\u6d4b\u8bd5\u4f8b\u5b50\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-21502\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/06\/OSSCTEST_3-min.png\" alt=\"\" width=\"946\" height=\"756\" srcset=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/06\/OSSCTEST_3-min.png 946w, http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/06\/OSSCTEST_3-min-768x614.png 768w\" sizes=\"auto, (max-width: 946px) 100vw, 946px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-21503\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/06\/OSSCTEST_4-min.png\" alt=\"\" width=\"945\" height=\"756\" srcset=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/06\/OSSCTEST_4-min.png 945w, http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/06\/OSSCTEST_4-min-768x614.png 768w\" sizes=\"auto, (max-width: 945px) 100vw, 945px\" \/><\/p>\n<ul style=\"list-style-type: square;\">\n<li><span style=\"background-color: #ffff99;\"><strong>\u7a0b\u5e8f\u4e0b\u8f7d<span style=\"color: #000080;\">\u00a0( <span style=\"color: #0000ff;\">Program Download<\/span> )<\/span><\/strong><\/span><\/li>\n<\/ul>\n<p><span style=\"color: #ff0000;\"><strong>(\u00a0 <span style=\"color: #ff00ff;\">\u5982\u679c\u60a8\u9700\u8981\u8fd9\u4e2a\u8f6f\u4ef6\uff0c\u8bf7\u5728\u8fd9\u7ed9\u7f51\u7ad9\u6350\u52a9\uff1a<span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"http:\/\/www.jdcui.com\/?page_id=4813\" target=\"_blank\" rel=\"noopener noreferrer\">http:\/\/www.jdcui.com\/?page_id=4813<\/a><\/span>\uff0c\u6350\u52a9\u4e0d\u4f4e\u4e8e 100RMB\uff0c\u6350\u52a9\u540e\u5728\u8bc4\u8bba\u533a\u7559\u4e0b\u60a8\u7684\u8bc4\u8bba\uff0c\u8f6f\u4ef6\u4f1a\u901a\u8fc7\u7ba1\u7406\u5458QQ\uff1a3014479529\u7ed9\u4f60\u53d1\u9001\uff0c\u5bf9\u8f6f\u4ef6\u6709\u4efb\u4f55\u7591\u95ee\u4e5f\u6b22\u8fce\u8054\u7cfb\uff0c<em>\u656c\u8bf7\u5c0a\u91cd\u52b3\u52a8\u6210\u679c<\/em>\u00a0\uff01\uff01\uff01\u3002<\/span>)<\/strong><\/span><\/p>\n<hr \/>\n<p style=\"text-align: center;\"><strong><div  class=\"thumbs-rating-container\" id=\"thumbs-rating-21488\" data-content-id=\"21488\"><button class=\"thumbs-rating-up thumbs-rating-voted\" onclick=\"thumbs_rating_vote(21488, 1);\">Vote Up +7<\/button> <button class=\"thumbs-rating-down\" onclick=\"thumbs_rating_vote(21488, 2);\">Vote Down -0<\/button><span class=\"thumbs-rating-already-voted\">You already voted!<\/span><\/div><\/strong><\/p>\n<ul style=\"list-style-type: square;\">\n<li><strong>\u76f8\u5173\u535a\u6587<span style=\"color: #0000ff;\">( Related 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target=\"_blank\" rel=\"noopener\">[\u7b14\u8bb0][\u7f16\u7a0b][\u7b97\u6cd5] \u56db\u6bb5\u5f0f\u5355\u8f74\u6062\u590d\u529b\u672c\u6784\u6a21\u578b\u5f00\u53d1 (Development of four segment uniaxial restoring force constitutive model)<\/a><\/strong><\/p>\n<p><strong>[17]. <a title=\"[\u6df7\u51dd\u571f] \u672c\u7ad9\u6df7\u51dd\u571f\u5355\u8f74\u672c\u6784\u535a\u6587\u6c47\u603b\u6574\u7406\" href=\"http:\/\/www.jdcui.com\/?p=11902\" target=\"_blank\" rel=\"noopener\">[\u6df7\u51dd\u571f] \u672c\u7ad9\u6df7\u51dd\u571f\u5355\u8f74\u672c\u6784\u535a\u6587\u6c47\u603b\u6574\u7406<\/a><\/strong><\/p>\n<p><strong>[18]. <a title=\"[\u4e66]PERFORM-3D\u539f\u7406\u4e0e\u5b9e\u4f8b \u2013 \u7b2c3\u7ae0 \u2013 \u94a2\u7b4b\u4e0e\u6df7\u51dd\u571f\u6750\u6599\u7684\u5355\u8f74\u672c\u6784\u5173\u7cfb\" href=\"http:\/\/www.jdcui.com\/?p=4165\" target=\"_blank\" rel=\"noopener\">\u4e66]PERFORM-3D\u539f\u7406\u4e0e\u5b9e\u4f8b \u2013 \u7b2c3\u7ae0 \u2013 \u94a2\u7b4b\u4e0e\u6df7\u51dd\u571f\u6750\u6599\u7684\u5355\u8f74\u672c\u6784\u5173\u7cfb<\/a><\/strong><\/p>\n<p><strong>[19]. <a title=\"[\u79d1\u7814][OpenSees] BWBN Material (Pinching Hysteretic Bouc-Wen Material) Test\" href=\"http:\/\/www.jdcui.com\/?p=12653\" target=\"_blank\" rel=\"noopener\">[\u79d1\u7814][OpenSees] BWBN Material (Pinching Hysteretic Bouc-Wen Material) Test<\/a><\/strong><\/p>\n<p><strong>[20]. <a title=\"[\u79d1\u7814][\u8f6f\u4ef6][OpenSees] OSSelfCenteringTest: OpenSees SelfCentering Material Test [OpenSees SelfCentering \u65d7\u5e1c\u578b\u6ede\u56de\u6a21\u578b\u6d4b\u8bd5]\" href=\"http:\/\/www.jdcui.com\/?p=21488\" target=\"_blank\" rel=\"noopener\">[\u79d1\u7814][\u8f6f\u4ef6][OpenSees] OSSelfCenteringTest: OpenSees SelfCentering Material Test [OpenSees SelfCentering \u65d7\u5e1c\u578b\u6ede\u56de\u6a21\u578b\u6d4b\u8bd5]<\/a><\/strong><\/p>\n<ul style=\"list-style-type: square;\">\n<li style=\"text-align: left;\"><strong>\u5fae\u4fe1\u516c\u4f17\u53f7\u00a0(\u00a0<span style=\"color: #0000ff;\">Wechat\u00a0Subscription<\/span>)<\/strong><\/li>\n<\/ul>\n<p><a href=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2017\/01\/QRCODE.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-3636\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2017\/01\/QRCODE.jpg\" alt=\"WeChat_QRCode\" width=\"250\" height=\"255\" \/><\/a><\/p>\n<p style=\"text-align: center;\"><strong>\u6b22\u8fce\u5173\u6ce8\u00a0\u201c<span style=\"color: #ff00ff;\">\u7ed3\u6784\u4e4b\u65c5<\/span>\u201d\u00a0\u5fae\u4fe1\u516c\u4f17\u53f7<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b9e\u5e72\u3001\u5b9e\u8df5\u3001\u79ef\u7d2f\u3001\u601d\u8003\u3001\u521b\u65b0\u3002 \u7a0b\u5e8f\u56fe\u6807\u00a0( Icon ) \u7a0b\u5e8f\u4ecb\u7ecd\u00a0( Introduction) \u5e94\u7f51\u53cb\u7684\u8981\u6c42\uff0c\u7f16\u5199OpenSees\u4e2d\u7684SelfCenteringMaterial\u672c\u6784\u6d4b\u8bd5\u7a0b\u5e8f\uff0c\u5173\u4e8eSelfCenteringMaterial\u7684\u4ecb\u7ecd\u5728OpenSees Wiki\u4e2d\u627e\u5230\uff1aSelfCentering Material &#8211; OpenSeesWiki (berkeley.edu) \u5176\u547d\u4ee4\u4e5f\u8d34\u5230\u4e0b\u9762\uff1a This command is used to construct a uniaxial self-centering (flag-shaped) material object with optional non-recoverable slip behaviour 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