{"id":63,"date":"2015-07-15T15:40:16","date_gmt":"2015-07-15T15:40:16","guid":{"rendered":"https:\/\/ccee.ncsu.edu\/cfl\/?page_id=63"},"modified":"2015-08-04T20:37:05","modified_gmt":"2015-08-04T20:37:05","slug":"large-structural-systems-laboratory","status":"publish","type":"page","link":"https:\/\/ccee.ncsu.edu\/cfl\/facilities\/large-structural-systems-laboratory\/","title":{"rendered":"Large Structural Systems Laboratory"},"content":{"rendered":"<p>The Large Structural Systems Laboratory has 4,500 square feet of reaction floor space. The laboratory allows CFL researchers to test large to full-scale structural systems under of static, dynamic, and environmental loading conditions. CFL personnel are knowledgeable on the use of many materials such as fiber reinforced polymers (FRP), conventional and high-strength concrete, steel, masonry, and wood. The laboratory is served by two 20-ton overhead cranes and has a MTS hydraulic system capable of 90gpm peak flow capacity.<\/p>\n<p align=\"justify\">The reaction floor is a 13-foot-thick cellular box, which is about 120 feet long by 40 feet wide. It is complemented by one fixed and one modular 25-foot-high reaction wall. This configuration allows testing of large structural systems under one and two directional horizontal loading.<\/p>\n<p><a href=\"https:\/\/ccee.ncsu.edu\/cfl\/wp-content\/uploads\/sites\/492\/2015\/07\/3dlab.jpg\" data-fullsize=\"412x263\"><img loading=\"lazy\" decoding=\"async\" class=\" size-medium wp-image-76 alignnone\" src=\"https:\/\/ccee.ncsu.edu\/cfl\/wp-content\/uploads\/sites\/492\/2015\/07\/3dlab-300x192.jpg\" alt=\"3dlab\" width=\"300\" height=\"192\" srcset=\"https:\/\/ccee.ncsu.edu\/cfl\/wp-content\/uploads\/sites\/492\/2015\/07\/3dlab-300x192.jpg 300w, https:\/\/ccee.ncsu.edu\/cfl\/wp-content\/uploads\/sites\/492\/2015\/07\/3dlab.jpg 412w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p align=\"justify\">State-of-the-art equipment for testing high-strength materials and high-strength, large-scale structural systems is available, including:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/ccee.ncsu.edu\/cfl\/wp-content\/uploads\/sites\/492\/2015\/08\/Testing1.jpg\" alt=\"Big Red\" width=\"100\" align=\"right\" hspace=\"10\" \/><img decoding=\"async\" src=\"https:\/\/ccee.ncsu.edu\/cfl\/wp-content\/uploads\/sites\/492\/2015\/08\/Testing2.jpg\" alt=\"UTM\" width=\"100\" align=\"right\" hspace=\"10\" \/><\/p>\n<ul>\n<li>numerous reconfigurable test frames with up to a 24-foot vertical clearance;<\/li>\n<li>a column-testing frame with a 400-kip force capacity and 25-foot vertical clearance;<\/li>\n<li>static and dynamic actuators with capacities of 22-, 55-, 110-, 220- and 440-kips and up to 40in. displacement capability;<\/li>\n<li>a 2000-kip Baldwin closed loop compression machine<\/li>\n<li>a 220-kip closed-loop servo-hydraulic universal testing machine; and<\/li>\n<li>a 20-kip electro-mechanical universal testing machine.<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/ccee.ncsu.edu\/cfl\/wp-content\/uploads\/sites\/492\/2015\/08\/EnvChamber.jpg\" alt=\"110 actuator\" width=\"220\" align=\"left\" hspace=\"10\" vspace=\"10\" \/><\/p>\n<p align=\"justify\">Perhaps the most unique capability of the CFL is its ability to test structures under a combination of physical and environmental loading conditions. The CFL has a walk-in Thermotron environmental chamber on the laboratory strong floor. The environmental chamber contains 1512 cubic feet of test space (18ft x 8ft x 8ft). The chamber is capable of thermal loading from -68C (-90F) to 85C (185F), humidy control from 20% to 95% relative humity (limited by +7C to 65C dewpoint range and a +70C maximum dry bulb temperature), and salt or fresh water spray up to 20gpm. The chamber was designed to transition from +85C (185F) to -40C (-40F) or from -40C (-40F) to +85C (185F) in 24 +\/- 1 hour with 55,000lbs of steel (non-humidity). The chamber is electronically controlled and can be programmed for complex environmental loading sequences or cycles. Specimens subjected environmental conditions can be simultaneously loaded using high-force hydraulic actuators. Other environmental testing equipment includes a rapid freeze-thaw machine for freeze-thaw testing of concrete.<\/p>\n<p align=\"justify\">For seismic evaluation of structural materials and systems, the CFL is equipped with a single-axis shake table. The shake table has an 8ft x 8ft steel table with a 40,000lb vertical capacity, a 10in. stroke, and a 800mm\/s peak velocity.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Large Structural Systems Laboratory has 4,500 square feet of reaction floor space. The laboratory allows CFL researchers to test large to full-scale structural systems under of static, dynamic, and environmental loading conditions. CFL personnel are knowledgeable on the use of many materials such as fiber reinforced polymers (FRP), conventional and high-strength concrete, steel, masonry,&hellip;<\/p>\n","protected":false},"author":0,"featured_media":0,"parent":11,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","meta":{"_acf_changed":false,"ncst_dynamicHeaderBlockName":"","ncst_dynamicHeaderData":"","ncst_content_audit_freq":"","ncst_content_audit_date":"","ncst_content_audit_display":false,"ncst_backToTopFlag":"","footnotes":""},"class_list":["post-63","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/ccee.ncsu.edu\/cfl\/wp-json\/wp\/v2\/pages\/63","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ccee.ncsu.edu\/cfl\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/ccee.ncsu.edu\/cfl\/wp-json\/wp\/v2\/types\/page"}],"replies":[{"embeddable":true,"href":"https:\/\/ccee.ncsu.edu\/cfl\/wp-json\/wp\/v2\/comments?post=63"}],"version-history":[{"count":8,"href":"https:\/\/ccee.ncsu.edu\/cfl\/wp-json\/wp\/v2\/pages\/63\/revisions"}],"predecessor-version":[{"id":130,"href":"https:\/\/ccee.ncsu.edu\/cfl\/wp-json\/wp\/v2\/pages\/63\/revisions\/130"}],"up":[{"embeddable":true,"href":"https:\/\/ccee.ncsu.edu\/cfl\/wp-json\/wp\/v2\/pages\/11"}],"wp:attachment":[{"href":"https:\/\/ccee.ncsu.edu\/cfl\/wp-json\/wp\/v2\/media?parent=63"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}