{"id":1405,"date":"2022-10-18T06:23:28","date_gmt":"2022-10-18T06:23:28","guid":{"rendered":"https:\/\/artoprecast.in\/blog\/?p=1405"},"modified":"2022-10-20T13:21:06","modified_gmt":"2022-10-20T13:21:06","slug":"precast-building-connections","status":"publish","type":"post","link":"https:\/\/artoprecast.in\/blog\/posts\/precast-building-connections\/","title":{"rendered":"Precast Building Connections"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"1405\" class=\"elementor elementor-1405\">\n\t\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5546f70 blogcontentbox elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5546f70\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-bd2db0b\" data-id=\"bd2db0b\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6c0aeae elementor-widget elementor-widget-image\" data-id=\"6c0aeae\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.7.6 - 15-09-2022 *\/\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t\t\t\t\t\t<img width=\"768\" height=\"442\" src=\"https:\/\/artoprecast.in\/blog\/wp-content\/uploads\/2022\/10\/precast-building-connections-1.jpg\" class=\"attachment-full size-full\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/artoprecast.in\/blog\/wp-content\/uploads\/2022\/10\/precast-building-connections-1.jpg 768w, https:\/\/artoprecast.in\/blog\/wp-content\/uploads\/2022\/10\/precast-building-connections-1-300x173.jpg 300w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-92b5e62 elementor-widget elementor-widget-text-editor\" data-id=\"92b5e62\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.7.6 - 15-09-2022 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#818a91;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#818a91;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\tThe most serious issue confronting the precast industry is the lack of a dependable and cost-effective method of joining prefabricated members. Connections are high-stress concentration locations and structural system weak points; they must withstand high forces and displacement when subjected to lateral loads transmitting joints. &#8220;Joints&#8221; are the points of action of forces that occur at the interface of two or more structural elements. While a &#8220;connection&#8221; is a group of joints that transmit forces and moments at the interface of structural members.\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f8edd8e elementor-widget elementor-widget-text-editor\" data-id=\"f8edd8e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\tIn general, joints are divided into three major systems:\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-aa85988 elementor-align-left elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"aa85988\" data-element_type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<link rel=\"stylesheet\" href=\"https:\/\/artoprecast.in\/blog\/wp-content\/plugins\/elementor\/assets\/css\/widget-icon-list.min.css\">\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"far fa-dot-circle\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Standard joint system - dry joints (angles, plates, channel bars, anchors, fasteners, bolts, dowels bars).<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"far fa-dot-circle\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Wet joint emulative joint systems (rebar splices and cast-in-situ concrete).<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"far fa-dot-circle\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Dry joints mechanical joints system (bolted flanges or other steel fittings).<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-379039e elementor-widget elementor-widget-text-editor\" data-id=\"379039e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\tThe failure of the connections caused the majority of the damage and collapse of precast structures. Given the performance of these connections, system, as it provides excellent lateral load resistance. These connections have a monolithic behavior, provide continuity, and contribute to the system&#8217;s structural integrity.\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e937428 elementor-widget elementor-widget-heading\" data-id=\"e937428\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.7.6 - 15-09-2022 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h2 class=\"elementor-heading-title elementor-size-default\">Connection Specifics<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8afd7ff elementor-widget elementor-widget-text-editor\" data-id=\"8afd7ff\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\tConnection design should be carried out to ensure that the connections can withstand the applied structural action while also meeting the functional requirements.\nConnections between columns and foundations\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-997aa82 elementor-widget elementor-widget-heading\" data-id=\"997aa82\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Socket Interconnection<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-62771fd elementor-widget elementor-widget-text-editor\" data-id=\"62771fd\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\tThe socketed connection will provide a fixed base connection to the precast column, which is especially useful in low-rise precast construction. The column&#8217;s cantilever action provides lateral stability for the building, reducing the amount of horizontal and vertical bracing required. In this regard, The overturning moments in the column will be resisted in this case by properly embedding the column into the concrete socket.\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-97cab4a elementor-widget elementor-widget-heading\" data-id=\"97cab4a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Bolted or Plated Connections<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3e48ed7 elementor-widget elementor-widget-text-editor\" data-id=\"3e48ed7\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\tThis is a bolted joint between a column and a footing that is intended to withstand tension, compression, and shear. To ensure proper placement in the formwork, set the overall dimensions of the base plate slightly less than the column dimensions. To avoid voids beneath the plate, non-shrink grout should be used. It is strongly advised to use closed ties around the anchor bolts.\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0e60edf elementor-widget elementor-widget-heading\" data-id=\"0e60edf\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Mechanical Splice Joints<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9d4b8a1 elementor-widget elementor-widget-text-editor\" data-id=\"9d4b8a1\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\tA mechanical splice connection is a common moment connection used to resist overturning moments and cantilever moments. These connections are used for\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b2be64e elementor-align-left elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"b2be64e\" data-element_type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"far fa-dot-circle\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Column-beam framing system columns that need to be fixed at the bottom,<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"far fa-dot-circle\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Moment resistant column splices, and<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"far fa-dot-circle\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Cantilever columns and wall panels.<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7178291 elementor-widget elementor-widget-heading\" data-id=\"7178291\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Grouted Interconnections<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-023f60e elementor-widget elementor-widget-text-editor\" data-id=\"023f60e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\tBecause the bedding joint and grout sleeves are completely filled with grout, this type of connection can be treated in the same way as in situ connections. In this case, the dowel bars can be projected upward from the column or downward from the base.\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b827b4e elementor-widget elementor-widget-heading\" data-id=\"b827b4e\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Connections from Beams to Columns<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-782991e elementor-widget elementor-widget-text-editor\" data-id=\"782991e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\tThe behavior of joining the system, including beam-column connections, determines the efficiency of precast concrete structures in resisting gravity or lateral loads. The configuration and response of the connection, including strength and rotations. Building frames are affected by stiffness and ductility in a variety of ways.\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-45e6a43 elementor-widget elementor-widget-heading\" data-id=\"45e6a43\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">The Dry Connection<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d4388d5 elementor-widget elementor-widget-text-editor\" data-id=\"d4388d5\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\tThey can be broadly classified into two types in the case of the dry connection between beam and column. Vertical members in type I are continuous, whereas vertical members in type 2 are discontinuous. Type 1 connections are further subdivided into (1) hidden connections and (2) visible connections. Type 2 can be divided into two categories: (a) beam ends resting on top of columns and (b) continuous beam anchored at the beams&#8217; heads.\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-20085e2 elementor-widget elementor-widget-heading\" data-id=\"20085e2\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Concealed Connection<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6dd904d elementor-widget elementor-widget-text-editor\" data-id=\"6dd904d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\tThis connection is typically designed as a simply supported connection that must withstand enormous shear force. The beam connection may need to support one column and one column plus \/two\/ three\/ beams.\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>The most serious issue confronting the precast industry is the lack of a dependable and cost-effective method of joining prefabricated members. Connections are high-stress concentration locations and structural system weak points; they must withstand high forces and displacement when subjected to lateral loads transmitting joints. &#8220;Joints&#8221; are the points of action of forces that occur [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1423,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/artoprecast.in\/blog\/wp-json\/wp\/v2\/posts\/1405"}],"collection":[{"href":"https:\/\/artoprecast.in\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/artoprecast.in\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/artoprecast.in\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/artoprecast.in\/blog\/wp-json\/wp\/v2\/comments?post=1405"}],"version-history":[{"count":15,"href":"https:\/\/artoprecast.in\/blog\/wp-json\/wp\/v2\/posts\/1405\/revisions"}],"predecessor-version":[{"id":1429,"href":"https:\/\/artoprecast.in\/blog\/wp-json\/wp\/v2\/posts\/1405\/revisions\/1429"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/artoprecast.in\/blog\/wp-json\/wp\/v2\/media\/1423"}],"wp:attachment":[{"href":"https:\/\/artoprecast.in\/blog\/wp-json\/wp\/v2\/media?parent=1405"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/artoprecast.in\/blog\/wp-json\/wp\/v2\/categories?post=1405"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/artoprecast.in\/blog\/wp-json\/wp\/v2\/tags?post=1405"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}