{"id":2,"date":"2025-10-25T06:04:46","date_gmt":"2025-10-25T06:04:46","guid":{"rendered":"https:\/\/quakesim.net\/openseespl\/?page_id=2"},"modified":"2025-11-28T17:44:19","modified_gmt":"2025-11-28T17:44:19","slug":"main","status":"publish","type":"page","link":"https:\/\/quakesim.net\/openseespl\/","title":{"rendered":"OpenSeesPL &#8211; 3D Lateral Pile-Ground Interaction"},"content":{"rendered":"<p><b>OpenSeesPL<\/b><span style=\"font-family: Verdana;\"> is a PC-based graphical pre- and post-processor (user-interface) for three dimensional (3D) ground and ground-structure response. The 3D Finite Element (FE) computations are conducted using <a href=\"http:\/\/opensees.berkeley.edu\" target=\"_blank\"><b>OpenSees<\/b><\/a> developed by the Pacific Earthquake Engineering Research Center (PEER). The analysis options available in <b>OpenSeesPL<\/b>* include (<a href=\"example_input_files\">please see Example Input Files<\/a>): 1) Pushover Analysis, 2) Mode Shape Analysis and 3) Base Input Acceleration Analysis.<\/span><\/span><br \/>\n<span style=\"font-family: Verdana;\"><br \/>\n<b>OpenSeesPL<\/b> is recently re-written in Microsoft .NET Framework (WPF or Windows Presentation Foundation). OpenTK (OpenGL) library is used for visualization of FE mesh and OxyPlot is employed for x-y plotting.<\/span><\/span><br \/>\n<span style=\"font-family: Verdana;\"><br \/>\n*Lu, J., Elgamal, A., and Yang, Z. (2011). OpenSeesPL: 3D Lateral Pile-Ground Interaction, User Manual, Beta 1.0.<\/span><\/span><\/p>\n<p><span style=\"font-family: Verdana;\">Also, check the publications below for examples of different pile, footing, embedded structure, pile group, and ground modification scenarios:<\/p>\n<ul>\n<li><font face=Verdana>Elgamal, A., Lu, J., Yang, Z., and Shantz, T. (2009). Scenario-focused three-dimensional computational modeling in geomechanics, Alexandria, Egypt, 4 iYGEC&#8217;09 \u2013 Proc. 4th International Young Geotechnical Engineers&#8217; Conference (2 &#8211; 6 October), ISSMGE [<a href=\"\/openseespl\/Elgsft.pdf\" target=\"_blank\">View PDF File<\/a>]<\/li>\n<li>Elgamal, A., Lu, J., and Forcellini, D.,  \u201cMitigation of Liquefaction-Induced Lateral Deformation in a Sloping Stratum: Three-dimensional Numerical Simulation,\u201d Journal of Geotechnical and Geoenvironmental Engineering, ASCE, Vol. 135, No. 11, November, 1672-1682, 2009.<\/li>\n<li>Lu, J., Elgamal, A., Yan, L., Law, K. and Conte, J.P., &#8220;Large Scale Numerical Modeling in Geotechnical Earthquake Engineering&#8221;  International Journal of Geomechanics, ASCE, Vol. 11, No. 6, December, 490-503, 2011.<\/li>\n<li>Nguyen, T., Rayamajhi, D., Boulanger, R., Ashford, S., Lu, J., Elgamal, A., and Shao, L., \u201cDesign of DSM Grids for Liquefaction Remediation\u201d J. Geotech Geoenviron. Engng, ASCE, Volume 139, Issue 11, 1923-1933, November 2013.<\/li>\n<li>Rayamajhi, D., Nguyen, T., Ashford, S., Boulanger, R., Lu, J., Elgamal, A., and Shao, L., \u201cNumerical Study of Shear Stress Distribution for Discrete Columns in Liquefiable Soils, Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 9 pp., Volume 140, Issue 3, March 2014.<\/li>\n<li><font face=Verdana>Lu, J., Kamatchi, P., and Elgamal, A. (2019). &#8220;Using stone columns to mitigate lateral deformation in uniform and stratified liquefiable soil strata.&#8221; International Journal of Geomechanics, ASCE,  Vol. 19, No. 5.<\/li>\n<\/ul>\n<p><a href=\"http:\/\/scholar.google.com\/scholar?hl=en&#038;q=openseespl&#038;btnG=&#038;as_sdt=1%2C5&#038;as_sdtp= \" target=\"_blank\">Google for \u201cOpenSeesPL\u201d in Google Scholar<\/a><\/p>\n<p><a href=\"\/openseespl\/references\/\" title=\"References\">Click here<\/a> to see additional related references.<\/p>\n<p><a href=\"\/openseespl\/example_input_files\/\" title=\"Example Input Files\">Click here<\/a> to see example input files.<\/p>\n<p><a href=\"\/openseespl\/wp-content\/uploads\/2025\/11\/OpenSeesPLmesh2.png\"><img fetchpriority=\"high\" decoding=\"async\" src=\"\/openseespl\/wp-content\/uploads\/2025\/11\/OpenSeesPLmesh2.png\" alt=\"OpenSeesPLmesh2\" width=\"300\" height=\"177\" class=\"alignright size-full wp-image-82\" \/><\/a><br \/>\n<b>Download &amp; Install OpenSeesPL<\/b><br \/>\n<span style=\"font-family: Verdana;\"><br \/>\n<i>Note: <b>OpenSeesPL<\/b> only works on Windows based PC computers. It is best to use a relatively new Laptop or Desktop with a fast processor, and at least 2GB of memory.<\/i><\/span><\/span><br \/>\n<span style=\"font-family: Verdana;\"><\/p>\n<p><strong>Step 1: Install Tcl<\/strong><a name=\"tcl\"><\/a><br \/>\n<span style=\"font-family: Verdana;\"><br \/>\nIf you have not installed <strong>Tcl<\/strong> on your computer, please download the <strong>Tcl<\/strong> 8.5 installation file below and double-click to install it (<strong>OpenSees<\/strong> employs <strong>Tcl<\/strong> 8.5). You only need to do this step once for a given PC.<\/span><\/span><\/p>\n<p><a href=\"\/openseespl\/ActiveTcl8.5.18.0.298892-win32-x86_64-threaded.exe\">Download Tcl 8.5 (64-bit)<\/a><\/p>\n<p><!-- <a href=\"http:\/\/downloads.activestate.com\/ActiveTcl\/releases\/8.5.18.0\/ActiveTcl8.5.18.0.298892-win32-x86_64-threaded.exe\">Download Tcl 8.5 (64-bit)<\/a> --> <!-- <a href=\"http:\/\/downloads.activestate.com\/ActiveTcl\/releases\/8.5.18.0\/ActiveTcl8.5.18.0.298892-win32-ix86-threaded.exe\">Download Tcl 8.5 (32-bit)<\/a> --><\/p>\n<p><b>Step 2: Install OpenSeesPL<\/b><a name=\"download\"><\/a><br \/>\n<span style=\"font-family: Verdana;\"><span style=\"font-size: small;\"><\/p>\n<p>Please download the installation file from the link below, and then double-click on the icon and follow the simple installation instructions (you may wish to visit this site periodically to check for updates).<\/span><\/span><\/p>\n<p>(Note that we&#8217;re using 64-bit OpenSees and Tcl for the 64-bit version of OpenSeesPL):<div class='w3eden'><!-- WPDM Link Template: Default Template -->\n\n<div class=\"link-template-default card mb-2\">\n    <div class=\"card-body\">\n        <div class=\"media\">\n            <div class=\"mr-3 img-48\"><img decoding=\"async\" class=\"wpdm_icon\" alt=\"Icon\" src=\"https:\/\/quakesim.net\/openseespl\/wp-content\/plugins\/download-manager\/assets\/file-type-icons\/zip.svg\" \/><\/div>\n            <div class=\"media-body\">\n                <h3 class=\"package-title\"><a href='https:\/\/quakesim.net\/openseespl\/download\/download-openseespl-full-version-64-bit\/'>Download OpenSeesPL (Full Version, 64-bit)<\/a><\/h3>\n                <div class=\"text-muted text-small\"><i class=\"fas fa-copy\"><\/i> 1 file(s) <i class=\"fas fa-hdd ml-3\"><\/i> 9 MB<\/div>\n            <\/div>\n            <div class=\"ml-3\">\n                <div class=\"w3eden\"><div class=\"panel panel-default card\"><div class=\"panel-body card-body\"><span class=\"text-danger\">Login is required to access this page<\/span><\/div><div class=\"panel-footer card-footer text-right\"><a href=\"https:\/\/quakesim.net\/openseespl\/login\/?redirect_to=\/openseespl\/wp-json\/wp\/v2\/pages\/2\" class=\"btn btn-danger wpdmloginmodal-trigger btn-sm\"><i class=\"fa fa-lock\"><\/i> Login<\/a><\/div><\/div><\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n<\/div><a href=\"\/openseespl\/registration\/\">Register<\/a> <a href=\"\/openseespl\/login\/\">Log In<\/a>  <\/p>\n<p><span style=\"font-family: Verdana;\">(Version 3.0.5, <I><font color=red>updated 1\/20\/2025<\/font><\/I>)<\/span><\/span><\/p>\n<p><b>Step 3: Run OpenSeesPL<\/b><br \/>\n<span style=\"font-family: Verdana;\"><br \/>\n1) After installing the software on your computer, double-click the <b>OpenSeesPL<\/b> icon to start.<br \/>\n<span style=\"font-family: Verdana;\"><br \/>\n2) To conduct a pushover analysis, click <strong>Pushover Analysis<\/strong> in the main window. To conduct earthquake motion analysis, click <b>Single Motion Analysis<\/b>. For the default mesh, a typical Pushover analysis will be performed in less than 1 minute, and a typical earthquake simulation will consume about 5 &#8211; 10 minutes.<br \/>\n<span style=\"font-family: Verdana;\"><br \/>\n3) To open an existing model, click <strong>File<\/strong> in Menu and then click <strong>Open Model<\/strong> to open a model (the model file must have an extension of <strong>.opl<\/strong>).<br \/>\n<span style=\"font-family: Verdana;\"><br \/>\n4) Click <strong>Execute<\/strong> in Menu and then click <strong>Save Model &amp; Run Analysis<\/strong> to conduct the finite element simulation.<br \/>\n<span style=\"font-family: Verdana;\"><br \/>\n5) Click <strong>Display<\/strong> in Menu and then click corresponding menu item to view the result.<br \/>\n<!--\n<b>Step 4: Download OpenSeesPL User Manual<\/b>\n<span style=\"font-family: Verdana;\">\n<a href=\"OpenSeesPL_UserManual.pdf\">OpenSeesPL User Manual<\/a> (3.2 MB pdf file, <font color=red>updated Dec. 2011<\/font>)--><!-- <font color=red>Note: The User Manual is still under construction. A new version will be released soon.<\/font> --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>OpenSeesPL is a PC-based graphical pre- and post-processor (user-interface) for three dimensional (3D) ground and ground-structure response. The 3D Finite [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-2","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/quakesim.net\/openseespl\/wp-json\/wp\/v2\/pages\/2","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/quakesim.net\/openseespl\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/quakesim.net\/openseespl\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/quakesim.net\/openseespl\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/quakesim.net\/openseespl\/wp-json\/wp\/v2\/comments?post=2"}],"version-history":[{"count":9,"href":"https:\/\/quakesim.net\/openseespl\/wp-json\/wp\/v2\/pages\/2\/revisions"}],"predecessor-version":[{"id":116,"href":"https:\/\/quakesim.net\/openseespl\/wp-json\/wp\/v2\/pages\/2\/revisions\/116"}],"wp:attachment":[{"href":"https:\/\/quakesim.net\/openseespl\/wp-json\/wp\/v2\/media?parent=2"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}