{"id":205003,"date":"2023-06-06T09:53:25","date_gmt":"2023-06-06T13:53:25","guid":{"rendered":"https:\/\/www.constructionspecifier.com\/?p=205003"},"modified":"2023-06-13T10:24:18","modified_gmt":"2023-06-13T14:24:18","slug":"idahos-timber-basketball-arena-sports-a-doubly-curved-roof","status":"publish","type":"post","link":"https:\/\/www.constructionspecifier.com\/idahos-timber-basketball-arena-sports-a-doubly-curved-roof\/","title":{"rendered":"Idaho\u2019s timber basketball arena sports a doubly curved roof"},"content":{"rendered":"<div class=\"wonderpluginslider-container\" id=\"wonderpluginslider-container-215\" style=\"max-width:1050px;margin:0 auto;padding-left:0px;padding-right:0px;padding-top:84px;padding-bottom:0px;\"><div class=\"wonderpluginslider\" id=\"wonderpluginslider-215\" data-sliderid=\"215\" data-width=\"1050\" data-height=\"950\" data-skin=\"topcarousel\" data-usejsforfullbrowserwidth=\"false\" data-fullbrowserwidth=\"false\" data-playmutedandinlinewhenautoplay=\"false\" data-addextraattributes=\"false\" data-autoplay=\"false\" data-randomplay=\"false\" data-loadimageondemand=\"false\" data-transitiononfirstslide=\"false\" data-autoplayvideo=\"false\" data-isresponsive=\"true\" data-fullwidth=\"false\" data-isfullscreen=\"false\" data-ratioresponsive=\"false\" data-showtext=\"true\" data-showtimer=\"true\" data-showbottomshadow=\"false\" data-navshowpreview=\"false\" data-textautohide=\"false\" data-pauseonmouseover=\"false\" data-lightboxresponsive=\"true\" data-lightboxshownavigation=\"false\" data-lightboxshowtitle=\"true\" data-lightboxshowdescription=\"false\" data-texteffectresponsive=\"true\" data-donotinit=\"false\" data-addinitscript=\"false\" data-lightboxfullscreenmode=\"false\" data-lightboxcloseonoverlay=\"true\" data-lightboxvideohidecontrols=\"false\" data-lightboxnogroup=\"false\" data-shownav=\"true\" data-navthumbresponsive=\"false\" data-navshowfeaturedarrow=\"true\" data-inityoutube=\"true\" data-initvimeo=\"true\" data-navshowplaypause=\"true\" data-navshowarrow=\"false\" data-navshowbuttons=\"false\" data-lightboxshowsocial=\"false\" data-lightboxshowfacebook=\"true\" data-lightboxshowtwitter=\"true\" data-lightboxshowpinterest=\"true\" data-lightboxsocialrotateeffect=\"true\" data-showsocial=\"false\" data-showfacebook=\"true\" data-showtwitter=\"true\" data-showpinterest=\"true\" data-socialrotateeffect=\"true\" data-disableinlinecss=\"false\" data-triggerresize=\"false\" data-lightboxautoslide=\"false\" data-lightboxshowtimer=\"true\" data-lightboxshowplaybutton=\"true\" data-lightboxalwaysshownavarrows=\"false\" data-lightboxshowtitleprefix=\"true\" data-titleusealt=\"false\" data-outputtext=\"false\" data-titletag=\"h1\" data-descriptiontag=\"h2\" data-scalemode=\"fit\" data-arrowstyle=\"mouseover\" data-transition=\"fade\" data-loop=\"0\" data-border=\"0\" data-slideinterval=\"8000\" data-arrowimage=\"arrows-48-48-4.png\" data-arrowwidth=\"48\" data-arrowheight=\"48\" data-arrowtop=\"50\" data-arrowmargin=\"0\" data-ga4account=\"\" data-googleanalyticsaccount=\"\" data-navplaypauseimage=\"navplaypause-48-48-0.png\" data-navarrowimage=\"navarrows-28-28-0.png\" data-navstyle=\"thumbnails\" data-navimage=\"bullet-24-24-5.png\" data-navwidth=\"109\" data-navheight=\"72\" data-navspacing=\"4\" data-navmarginx=\"16\" data-navmarginy=\"-84\" data-navposition=\"top\" data-navthumbnavigationstyle=\"arrowinside\" data-navthumbnavigationarrowimage=\"carouselarrows-32-32-3.png\" data-navthumbnavigationarrowimagewidth=\"32\" data-navthumbnavigationarrowimageheight=\"32\" data-playvideoimage=\"playvideo-64-64-0.png\" data-playvideoimagewidth=\"64\" data-playvideoimageheight=\"64\" data-lightboxthumbwidth=\"90\" data-lightboxthumbheight=\"60\" data-lightboxthumbtopmargin=\"12\" data-lightboxthumbbottommargin=\"4\" data-lightboxbarheight=\"64\" data-lightboxtitlebottomcss=\"color:#333; 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color:#333;\" data-descriptioncss=\"display:block; position:relative; font:14px Georgia,serif,Arial; color:#333; margin-top:8px;\" data-buttoncss=\"display:block; position:relative; margin-top:8px;\" data-titlecssresponsive=\"font-size:12px;\" data-descriptioncssresponsive=\"display:none !important;\" data-buttoncssresponsive=\"\" data-jsfolder=\"https:\/\/www.constructionspecifier.com\/wp-content\/plugins\/wonderplugin-slider\/engine\/\" style=\"display:none;\" ><ul class=\"amazingslider-slides\"  style=\"display:none;\"><li><img decoding=\"async\" class=\"amazingslider-img-elem amazingsliderimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/06\/AA_ICCUArena_1_web.jpg\" alt=\"University of Idaho\u2019s (U of I\u2019s) Idaho Central Credit Union Arena in Moscow.\" title=\"\" data-description=\"University of Idaho\u2019s (U of I\u2019s) Idaho Central Credit Union Arena in Moscow, Idaho, features a specially crafted dual-curve roof in a long-span format made from timber. The engineering team behind the project worked to develop, shape, and optimize the curved roof, ensuring its feasibility for fabrication and construction. Photos by Lara Swimmer\/courtesy StructureCraft.\" \/><\/li><li><img decoding=\"async\" class=\"amazingslider-img-elem amazingsliderimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/06\/AA_ICCUArena_2_web.jpg\" alt=\"The mass timber sourced and installed by StructureCraft featured in this project includes long-span king-post roof trusses, glulam columns, and cross laminated and dowel laminated floors\" title=\"\" data-description=\"The mass timber sourced and installed by StructureCraft featured in this project includes long-span king-post roof trusses, glulam columns, and cross laminated and dowel laminated floors\" \/><\/li><li><img decoding=\"async\" class=\"amazingslider-img-elem amazingsliderimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/06\/AA_ICCUArena_3_web.jpg\" alt=\"The engineer\u2019s shop team leveraged its in-house CNC capabilities and employed layout optimization techniques to accurately cut the desired shapes from the actual curved billets received from the Idaho manufacturers.\" title=\"\" data-description=\"The engineer\u2019s shop team leveraged its in-house CNC capabilities and employed layout optimization techniques to accurately cut the desired shapes from the actual curved billets received from the Idaho manufacturers. Photo courtesy StructureCraft.\" \/><\/li><li><img decoding=\"async\" class=\"amazingslider-img-elem amazingsliderimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/06\/AA_ICCUArena_4_web.jpg\" alt=\"The photo shows the installation of the final truss on the roof.\" title=\"\" data-description=\"The photo shows the installation of the final truss on the roof. Photos courtesy University of Idaho Creative Services.\" \/><\/li><li><img decoding=\"async\" class=\"amazingslider-img-elem amazingsliderimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/06\/AA_ICCUArena_5_web.jpg\" alt=\"The photo shows the roof installation after completion.\" title=\"\" data-description=\"The photo shows the roof installation after completion.\" \/><\/li><li><img decoding=\"async\" class=\"amazingslider-img-elem amazingsliderimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/06\/AA_ICCUArena_6_web.jpg\" alt=\"In the arena, thoughtfully designed 3D timber\/steel trusses, meticulously proportioned, extend over a length of (45.7 m) 150 ft, reaching a distinctive timber portal frame arch that gracefully delineates the intimate space within the arena.\" title=\"\" data-description=\"In the arena, thoughtfully designed 3D timber\/steel trusses, meticulously proportioned, extend over a length of (45.7 m) 150 ft, reaching a distinctive timber portal frame arch that gracefully delineates the intimate space within the arena. Photos by Lara Swimmer\/courtesy StructureCraft.\" \/><\/li><li><img decoding=\"async\" class=\"amazingslider-img-elem amazingsliderimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/06\/AA_ICCUArena_7_web.jpg\" alt=\"A closeup of the roof from the inside.\" title=\"\" data-description=\"A closeup of the roof from the inside.\" \/><\/li><\/ul><ul class=\"amazingslider-thumbnails\"  style=\"display:none;\"><li><img decoding=\"async\" class=\"amazingslider-thumbnail-elem amazingsliderthumbnailimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/06\/AA_ICCUArena_1_web-300x200.jpg\" alt=\"University of Idaho\u2019s (U of I\u2019s) Idaho Central Credit Union Arena in Moscow.\" title=\"\" data-description=\"University of Idaho\u2019s (U of I\u2019s) Idaho Central Credit Union Arena in Moscow, Idaho, features a specially crafted dual-curve roof in a long-span format made from timber. The engineering team behind the project worked to develop, shape, and optimize the curved roof, ensuring its feasibility for fabrication and construction. Photos by Lara Swimmer\/courtesy StructureCraft.\" \/><\/li><li><img decoding=\"async\" class=\"amazingslider-thumbnail-elem amazingsliderthumbnailimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/06\/AA_ICCUArena_2_web-300x200.jpg\" alt=\"The mass timber sourced and installed by StructureCraft featured in this project includes long-span king-post roof trusses, glulam columns, and cross laminated and dowel laminated floors\" title=\"\" data-description=\"The mass timber sourced and installed by StructureCraft featured in this project includes long-span king-post roof trusses, glulam columns, and cross laminated and dowel laminated floors\" \/><\/li><li><img decoding=\"async\" class=\"amazingslider-thumbnail-elem amazingsliderthumbnailimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/06\/AA_ICCUArena_3_web-300x200.jpg\" alt=\"The engineer\u2019s shop team leveraged its in-house CNC capabilities and employed layout optimization techniques to accurately cut the desired shapes from the actual curved billets received from the Idaho manufacturers.\" title=\"\" data-description=\"The engineer\u2019s shop team leveraged its in-house CNC capabilities and employed layout optimization techniques to accurately cut the desired shapes from the actual curved billets received from the Idaho manufacturers. Photo courtesy StructureCraft.\" \/><\/li><li><img decoding=\"async\" class=\"amazingslider-thumbnail-elem amazingsliderthumbnailimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/06\/AA_ICCUArena_4_web-300x200.jpg\" alt=\"The photo shows the installation of the final truss on the roof.\" title=\"\" data-description=\"The photo shows the installation of the final truss on the roof. Photos courtesy University of Idaho Creative Services.\" \/><\/li><li><img decoding=\"async\" class=\"amazingslider-thumbnail-elem amazingsliderthumbnailimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/06\/AA_ICCUArena_5_web-300x163.jpg\" alt=\"The photo shows the roof installation after completion.\" title=\"\" data-description=\"The photo shows the roof installation after completion.\" \/><\/li><li><img decoding=\"async\" class=\"amazingslider-thumbnail-elem amazingsliderthumbnailimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/06\/AA_ICCUArena_6_web-200x300.jpg\" alt=\"In the arena, thoughtfully designed 3D timber\/steel trusses, meticulously proportioned, extend over a length of (45.7 m) 150 ft, reaching a distinctive timber portal frame arch that gracefully delineates the intimate space within the arena.\" title=\"\" data-description=\"In the arena, thoughtfully designed 3D timber\/steel trusses, meticulously proportioned, extend over a length of (45.7 m) 150 ft, reaching a distinctive timber portal frame arch that gracefully delineates the intimate space within the arena. Photos by Lara Swimmer\/courtesy StructureCraft.\" \/><\/li><li><img decoding=\"async\" class=\"amazingslider-thumbnail-elem amazingsliderthumbnailimg\" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2023\/06\/AA_ICCUArena_7_web-300x200.jpg\" alt=\"A closeup of the roof from the inside.\" title=\"\" data-description=\"A closeup of the roof from the inside.\" \/><\/li><\/ul><\/div><\/div><div id=\"amazingslider_customtexteffect_215\" style=\"display:none;\" data-texteffect=\"{&quot;Underneath center&quot;:{&quot;textstyle&quot;:&quot;static&quot;,&quot;textpositionstatic&quot;:&quot;bottomoutside&quot;,&quot;textautohide&quot;:false,&quot;textpositionmarginstatic&quot;:0,&quot;textpositiondynamic&quot;:&quot;bottomleft&quot;,&quot;textpositionmarginleft&quot;:24,&quot;textpositionmarginright&quot;:24,&quot;textpositionmargintop&quot;:24,&quot;textpositionmarginbottom&quot;:24,&quot;texteffect&quot;:&quot;slide&quot;,&quot;texteffecteasing&quot;:&quot;easeOutCubic&quot;,&quot;texteffectduration&quot;:600,&quot;texteffectslidedirection&quot;:&quot;left&quot;,&quot;texteffectslidedistance&quot;:30,&quot;texteffectdelay&quot;:500,&quot;texteffectseparate&quot;:false,&quot;texteffect1&quot;:&quot;slide&quot;,&quot;texteffectslidedirection1&quot;:&quot;right&quot;,&quot;texteffectslidedistance1&quot;:120,&quot;texteffecteasing1&quot;:&quot;easeOutCubic&quot;,&quot;texteffectduration1&quot;:600,&quot;texteffectdelay1&quot;:1000,&quot;texteffect2&quot;:&quot;slide&quot;,&quot;texteffectslidedirection2&quot;:&quot;right&quot;,&quot;texteffectslidedistance2&quot;:120,&quot;texteffecteasing2&quot;:&quot;easeOutCubic&quot;,&quot;texteffectduration2&quot;:600,&quot;texteffectdelay2&quot;:1500,&quot;textcss&quot;:&quot;display:block; padding:12px 0px; text-align:center; margin-top:4px;&quot;,&quot;textbgcss&quot;:&quot;display:none;&quot;,&quot;titlecss&quot;:&quot;display:block; position:relative; font:bold 16px Georgia,serif,Arial; color:#333;&quot;,&quot;descriptioncss&quot;:&quot;display:block; position:relative; font:14px Georgia,serif,Arial; color:#333; margin-top:8px;&quot;,&quot;buttoncss&quot;:&quot;display:block; position:relative; margin-top:8px;&quot;,&quot;texteffectresponsive&quot;:true,&quot;texteffectresponsivesize&quot;:640,&quot;titlecssresponsive&quot;:&quot;font-size:12px;&quot;,&quot;descriptioncssresponsive&quot;:&quot;display:none !important;&quot;,&quot;buttoncssresponsive&quot;:&quot;&quot;,&quot;addgooglefonts&quot;:false,&quot;googlefonts&quot;:&quot;&quot;,&quot;textleftrightpercentforstatic&quot;:40}}\"><\/div><script>function wonderslider_215_appendcss(csscode) {var head=document.head || document.getElementsByTagName(\"head\")[0];var style=document.createElement(\"style\");head.appendChild(style);style.type=\"text\/css\";if (style.styleSheet){style.styleSheet.cssText=csscode;} else {style.appendChild(document.createTextNode(csscode));}};wonderslider_215_appendcss(\"#wonderpluginslider-215 .star-rating { \tdisplay: inline-block; }\");<\/script>\n<p>University of Idaho\u2019s (U of I\u2019s) Idaho Central Credit Union Arena in Moscow features a specially crafted dual-curve roof in a long-span format made from timber. The engineering team behind the project worked to develop, shape, and optimize the curved roof, ensuring its feasibility for fabrication and construction.<\/p>\n<p>This meticulous process not only enhanced the architectural vision but also addressed the various constraints and challenges associated with a doubly curved structure spanning a 5,760-m<sup>2<\/sup> (62,000-sf) arena. The architect, Opsis Architecture, envisioned the shape of the roof to be inspired by the undulating hilly landscape of the Palouse region, encompassing parts of northern Idaho, southeast Washington State, and some areas of northeast Oregon.<\/p>\n<p>Using timber in a double-curve roof and a structure composed of hybrid timber\/steel trusses spanning 36.6 m (120 ft) came with its set of challenges but the structural engineering team at StructureCraft worked in consort with the architect to find a fitting solution. The mass timber sourced and installed by StructureCraft featured in this project includes long-span king-post roof trusses, glulam columns, and cross laminated and dowel laminated floors. Consulting firm KPFF provided structural engineering for the building base, and Hoffman Construction Company was the general contractor.<\/p>\n<p>In the arena, thoughtfully designed 3D timber\/steel trusses, meticulously proportioned, extend over a length of (45.7 m) 150 ft, reaching a distinctive timber portal frame arch that gracefully delineates the intimate space within the arena. Constructed with locally sourced timber, this newly erected structure has swiftly transformed into a beloved exhibition space, showcasing the university&#8217;s pride as well as Idaho&#8217;s significant forest industry.<\/p>\n<p>The project primarily utilized locally sourced Glulam, with curved Glulam elements produced by two different manufacturers based in Idaho. This posed a notable challenge since these manufacturers had not previously worked with the precise tolerances required for a project of this magnitude. However, according to StructureCraft, the structural 3D model produced by their team successfully generated all the necessary geometry and shop drawings to produce the unique curved Glulam shapes.<\/p>\n<p>To accomplish this, the engineer\u2019s shop team leveraged its in-house CNC capabilities and employed layout optimization techniques to accurately cut the desired shapes from the actual curved billets received from the Idaho manufacturers. Additionally, the team carefully conducted a &#8220;test fit&#8221; of each major assembly within the shop to ensure proper fit before shipping the components to the construction site.<\/p>\n<p>To minimize working at a height, the entire portal frame was pre-assembled on site into three components, each weighing over 22,679 kg (50,000 lbs).<\/p>\n<p>The kingpost trusses presented a significant challenge during installation due to their weight and the need for a crane within the bowl. To overcome this obstacle, a parametric model of the trusses was developed using genetic algorithms. This enabled structural optimization while adhering to various aesthetic objectives. As a result, the trusses achieved enhanced structural efficiency, significantly reducing the weights of the prefabricated elements. This approach not only upheld the project\u2019s budget, but also ensured its successful completion.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>University of Idaho\u2019s (U of I\u2019s) Idaho Central Credit Union Arena in Moscow features a specially crafted dual-curve roof in a long-span format made from timber. The engineering team behind the project worked to develop, shape, and optimize the curved roof, ensuring its feasibility for fabrication and construction.<\/p>\n","protected":false},"author":29853,"featured_media":205014,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1029],"tags":[4950,2064,8592,8593,2478,567,3273,3715],"class_list":["post-205003","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-auditorium","tag-cross-laminated-timber","tag-dowel-laminated","tag-floors","tag-mass-timber","tag-roof","tag-sports","tag-united-states","entry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Idaho\u2019s timber basketball arena sports a doubly curved roof - The Construction Specifier<\/title>\n<meta name=\"description\" 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