{"id":1464,"date":"2021-05-12T06:34:49","date_gmt":"2021-05-12T06:34:49","guid":{"rendered":"http:\/\/quakeadvice.org\/?page_id=1464"},"modified":"2023-10-20T23:56:40","modified_gmt":"2023-10-20T23:56:40","slug":"program-au3b","status":"publish","type":"page","link":"https:\/\/quakeadvice.org\/index.php\/code-seismic-design\/australia\/program-au3b\/","title":{"rendered":"Program AU3b &#8211; AS3600 ductile design tools: RC shear wall"},"content":{"rendered":"\n\n\t<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n    <meta charset=\"UTF-8\"\/>\n    <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\/>\n    <style>\n\t.page-break {\n\t\t\tpage-break-after: always;\n\t\t\tpage-break-inside: avoid;\n\t\t\tclear:both;\n\t\t}\n\t\t.page-break-before {\n\t\t\tpage-break-before: always;\n\t\t\tpage-break-inside: avoid;\n\t\t\tclear:both;\n    }\n    .sticky-col {\n      position: sticky;\n    position: -webkit-sticky;    \n    background-color: white;\n    left: 0px;\n   }\n  .fixedrow {\n      position: sticky;\n    position: -webkit-sticky;    \n    background-color: white;\n    top: 0px;\n    text-align: center;\n  }\n  .fixedrow1 {\n      position: sticky;\n    position: -webkit-sticky;    \n    background-color: white;\n    top: 30px;\n    text-align: center;\n  }\n  .pagesetup2 {\n    width: 1055px;\n  }\n  .btn {\n  background-color: DodgerBlue;\n  border: none;\n  color: white;\n  width:260px; \n  height:35px;\n  cursor: pointer;\n  font-size: 12px;\n }\n .btn101 {\n  background-color:grey;\n  border: none;\n  color: black;\n  height:35px;\n  cursor: pointer;\n  font-size: 12px;\n }\n\/* Darker background on mouse-over *\/\n.btn:hover {\n  background-color: RoyalBlue;\n}\n.btn101:hover {\n  background-color:darkslategrey;\n  color: white;\n}\na.abutton {\n    -webkit-appearance: button;\n    -moz-appearance: button;\n    appearance: button;\n    text-decoration: none;\n    color: initial;\n}\ntable {\n  border-collapse: collapse;\n }\n button.capitalize {\n  text-transform: capitalize;\n}\n\/* for tier 3 *\/\n* {\n  box-sizing: border-box;\n}\n\/* Create two equal columns that floats next to each other *\/\n.column {\n  float: left;\n  padding: 5px;\n }\n\/* Clear floats after the columns *\/\n.row:after {\n  content: \"\";\n  display: table;\n  clear: both;\n}\n.center {\n  margin-left: auto;\n  margin-right: auto;\n}\n<\/style>  \n    <link rel=\"stylesheet\" href=\"https:\/\/cdnjs.cloudflare.com\/ajax\/libs\/skeleton\/2.0.4\/skeleton.min.css\"\/>\n    <link rel=\"stylesheet\" href=\"https:\/\/cdnjs.cloudflare.com\/ajax\/libs\/font-awesome\/4.7.0\/css\/font-awesome.min.css\"\/>\n <title>Confinement Design and Detailing of the Boundary Element of the RC Wall<\/title>\n <\/head>\n<body>\n  <p><b><u>AS 3600:2018 &#8211; Confinement Design of the Boundary Elements of RC Walls<\/u><\/b><\/p>\n  <iframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/GxtVdtmNUG8\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><br \/>\n\t  <b>1. Input Parameters<\/b>\n\t<table><tr><td><b>Ductility Class of the Wall:<\/b><\/td>\n   <td><select onchange=\"selectWallType();\" onfocus=\"this.selectedIndex = -1;\" id=\"wType\">\n                    <option value=\"0\">Select<\/option> <option value=\"1\">Limited Ductile (ductility ratio = 2)<\/option><option value=\"2\">Moderate Ductile (ductility ratio = 3)<\/option><\/select><\/td>\n                    <\/tr> \n<\/table>\n   <table><tr><td><b>Number of storeys above the base of the building:<\/b><\/td>\n   <td><select onchange=\"selectStoreyNo();\" onfocus=\"this.selectedIndex = -1;\" id=\"nw\">\n                    <option value=\"0\">Select<\/option> <option value=\"1\">\u2264 4 storeys<\/option><option value=\"2\"> &gt; 4 storeys<\/option><\/select><\/td>\n                    <\/tr> \n<\/table>\n<b>As per Cl.14.6.2.2 of AS3600:2018, for structure of not more than 4 storeys above the structural base, boundary elements shall consist of &#8220;two N16 bars tied with an N12 U-bar or four N12 bars enclosed with R10 closed stirrups as shown in Figure 14.6.2.2&#8221;. &#8220;Figure 14.6.2.2&#8221; which is shown below.<\/b>\n  <br \/> <img data-recalc-dims=\"1\" fetchpriority=\"high\" decoding=\"async\" width=\"600\" height=\"124\" src=\"https:\/\/i0.wp.com\/quakeadvice.org\/wp-content\/uploads\/2023\/10\/Figure4storey.png?resize=600%2C124\"\/>\n  <table>\n  <tr><td><b>Length of the Wall, L<sub>w<\/sub> (mm):<\/b><\/td>\n    <td><input type=\"text\" id=\"Lsize\"\/><\/td> \n   <\/tr>\n  <tr><td><b>Thickness of the Wall, b<sub>w<\/sub> (mm):<\/b><\/td>\n    <td><input type=\"text\" id=\"bsize\"\/><\/td> \n   <\/tr>\n   <tr><td><b>Characteristic Compressive Strength (f&#8217;<sub>c<\/sub>):<\/b><\/td>\n   <td><select name=\"compressive strength\" id=\"strength\">\n    <option value=\"40\">40 MPa<\/option>\n    <option value=\"50\">50 MPa<\/option>\n    <option value=\"65\">65 MPa<\/option>\n    <option value=\"32\">32 MPa<\/option>\n     <\/select><\/td>\n   <\/tr>\n   <tr><td><b>Concrete Clear Cover (c):<\/b><\/td>\n       <td><select name=\"concrete cover\" id=\"cover\">\n                    <option value=\"25\">25 mm<\/option>\n                    <option value=\"20\">20 mm<\/option>\n                    <option value=\"30\">30 mm<\/option>\n                    <option value=\"35\">35 mm<\/option>\n                    <option value=\"40\">40 mm<\/option>\n                    <option value=\"45\">45 mm<\/option>\n                    <option value=\"50\">50 mm<\/option>\n                    <\/select><\/td>\n   <\/tr>            \n   <tr><td><b>Number of Vertical Reinforcement along Thickness of the Boundary Element (n<sub>b<\/sub>):<\/b><\/td>\n        <td><select name=\"nthickness\" id=\"nb\">\n                    <option value=\"0\">Default<\/option>\n                    <option value=\"2\">2<\/option>\n                    <option value=\"3\">3<\/option>\n                    <option value=\"4\">4<\/option>\n                    <\/select><\/td>\n    <\/tr>\n   <tr><td><b>Diameter of Vertical Reinforcements (d<sub>v<\/sub>):<\/b><\/td>\n        <td><select name=\"mainbar diameter\" id=\"mainbar-diameter\">\n                    <option value=\"24\">24 mm<\/option>\n                    <option value=\"16\">16 mm<\/option>\n                    <option value=\"20\">20 mm<\/option>\n                    <option value=\"28\">28 mm<\/option>\n                    <option value=\"32\">32 mm<\/option>\n                    <option value=\"36\">36 mm<\/option>\n    <\/select><\/td><\/tr> \n    <tr><td><b>Diameter of Stirrups (d<sub>s<\/sub>):<\/b><\/td>\n                  <td><select name=\"stirrups diameter\" id=\"stirrups-diameter\">\n                    <option value=\"12\">12 mm<\/option>\n                    <option value=\"10\">10 mm<\/option>\n                    <option value=\"16\">16 mm<\/option>\n                    <option value=\"20\">20 mm<\/option>\n                    <\/select><\/td>  \n      <\/tr>\n   <tr><td><b>Vertical Reinforcement Ratio or Spacing in mm:<\/b><\/td>\n    <td><input type=\"text\" id=\"perVert\"\/><\/td> \n    <\/tr> \n   <tr><td><b>Design Axial Force (N*) in kN:<\/b><\/td>\n    <td><input type=\"text\" id=\"axialforce\"\/><\/td> \n    <\/tr> \n    <tr><td><b>Design Moment (M*) in kNm :<\/b><\/td>\n      <td><input type=\"text\" id=\"designmoment\"\/><\/td> \n      <\/tr>\n  <tr><td><b>Height of wall, H<sub>w<\/sub> (mm):<\/b><\/td>\n      <td><input type=\"text\" id=\"hw\"\/><\/td> \n   <\/tr> \n       <tr><td><b>Clear Storey Height, h<sub>s<\/sub> (mm):<\/b><\/td>\n        <td><input type=\"text\" id=\"lcl\"\/><\/td> \n       <\/tr>\n  <\/table> \n  <button type=\"button\" id=\"stirrupdesign\"><b>Get Confinement Design<\/b><\/button><!div hide0 close>\n<br \/><br \/>\n<img data-recalc-dims=\"1\" decoding=\"async\"  src=\"https:\/\/i0.wp.com\/quakeadvice.org\/wp-content\/uploads\/2023\/10\/INPUT.png?w=400\"\/>\n<!div show11 close>\n<!div show0 close>\n<!The following is purely for report, the section above this line will be hidden and the content below will be shown in the report>\n  <b>1. Summary of Input Parameters<\/b>\n  <table id=\"inputsummary\" cellpadding=\"0\" cellspacing=\"0;\" margin=\"0px;\">\n    <tbody id=\"set-val1\"><\/tbody>\n  <\/table>\n<b>2. Results: Reinforcement Details<\/b>\n<!div show100 close>\n   <h1 style='page-break-before: always;'><\/h1> \n    <!second page break>\n\t<b>Confinement Design of the Wall Boundary Element<\/b>\n<br \/>The confinement demand (f<sub>r,demand<\/sub>), and confinement capacity or effective confining pressure (f<sub>r.eff<\/sub>) in the boundary element are determined from Equation 1 and Equations 2-6, respectively, following Cl.10.7.3 of AS3600:2018. \n In the equations, the wall thickness &#8216;d<sub>s<\/sub>&#8216;, wall clear cover &#8216;c&#8217; and diameter of stirrups &#8216;d<sub>s<\/sub>&#8216; are used from the user defined input, and the length of boundary element &#8216;L<sub>be<\/sub>)&#8217;is calculated as max(1.5b<sub>w<\/sub>, 0.15L<sub>w<\/sub>), and the stirrups spacing (S) in the boundary element is determined from lesser of [0.5tw, 8dv, 24ds, 200, spacing corresponding to f<sub>r,demand<\/sub> \u2265 0.01f&#8217;c].  The effective area of confinement is shown in Figure 3.\n  $$ {fr_{demand} = 0.01f&#8217;_{c}}tag{1}$$ \n  $$ {b_{c} = L_{be} &#8211; 2c &#8211; d_{s}}tag{2}$$\n  $$ {d_{c} = b_{w} &#8211; 2c &#8211; d_{s}}tag{3}$$\n  $$ {k_{e} =(1-frac{nw^2}{6b_{c}d_{c}})(1-frac{s}{2b_{c}})(1-frac{s}{2d_{c}})}tag{4}$$ \n  $$ {f_{r} =frac{min(n_{b},n_{d}) times A_{b,fit} times f_{sy,f}}{d_{s} times s}}tag{5}$$ \n  $$ {f_{r.eff} =k_{e} times f_{r}}tag{6}$$\n<img data-recalc-dims=\"1\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/quakeadvice.org\/wp-content\/uploads\/2023\/10\/ConfinedArea.png?w=600\"\/>\nFigure 3. Confined concrete area in the wall boundary region.\n  Where,<br \/>\n &#8216;<i>k<sub>e<\/sub><\/i>&#8216; is an effectiveness factors accounting for the arrangement of the fitments,<br \/>\n&#8216;<i>f<sub>r<\/sub><\/i>&#8216; is an average confining pressure on the core cross-section taken at the level of the fitments,<br \/>\n&#8216;<i>b<sub>c<\/sub><\/i>&#8216; and &#8216;<i>d<sub>c<\/sub><\/i>&#8216; are core dimension measured between the centre-lines of the fitments, <br \/> \n&#8216;<i>A<sub>b.fit<\/sub><\/i>&#8216; is the cross-sectional area of one leg of the fitment, <br \/>\n&#8216;<i>n<\/i>&#8216; is the number of laterally restrained longitudinal bars in the boundary region, <br \/>\n&#8216;<i>n<sub>b<\/sub><\/i>&#8216; and &#8216;<i>n<sub>d<\/sub><\/i>&#8216; are the number of fitment legs crossing each confinement plane, <br \/>\n&#8216;<i>w<\/i>&#8216; is average clear spacing between adjacent restrained longitudinal bars,<br \/>\n&#8216;<i>f<sub>r.eff<\/sub><\/i>&#8216; is the effective confining pressure.\n<br \/>\n<b>Table 1: Comparison of the confinement capacity and demand (0.01f&#8217;c).<\/b>\n <table id=\"resultsummary\" cellpadding=\"0\" cellspacing=\"0;\" margin=\"0px;\"><thead id=\"set-first\"><\/thead><tbody id=\"set-val\"><\/tbody><tbody id=\"set-val01\"><\/tbody><tbody id=\"set-val0001\"><\/tbody><\/table>\n<br \/><td><b>3. Reference:<\/b><\/td>   Standards Australia (2018). <i>AS 3600:2018 Concrete structures.<\/i>\n<br \/><br \/>\n   <td><b>Disclaimer: &#8220;The authors assume no responsibility for any injury, damage, liability, negligence and\/or otherwise to any individual or property from the use or application of any of the methods, products, instructions, or ideas contained in the material herein.&#8221;<\/b>\n <!show1 div close>\n <br \/>\n     <button id=\"reportpdf\" onclick=\"generatePDF();\"> Download\/Print Report<\/button>\n<!container div close>\n<!--  -->\n<\/td><\/body>\n<\/html>\n\n","protected":false},"excerpt":{"rendered":"<p>Confinement Design and Detailing of the Boundary Element of the RC Wall AS 3600:2018 &#8211; Confinement Design of the Boundary Elements of RC Walls 1. Input Parameters Ductility Class of the Wall: SelectLimited Ductile (ductility ratio = 2)Moderate Ductile (ductility ratio = 3) Number of storeys above the base of the building: Select\u2264 4 storeys &hellip; <a href=\"https:\/\/quakeadvice.org\/index.php\/code-seismic-design\/australia\/program-au3b\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":1257,"menu_order":24,"comment_status":"closed","ping_status":"closed","template":"template-full-width.php","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-1464","page","type-page","status-publish","hentry"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/quakeadvice.org\/index.php\/wp-json\/wp\/v2\/pages\/1464","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/quakeadvice.org\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/quakeadvice.org\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/quakeadvice.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/quakeadvice.org\/index.php\/wp-json\/wp\/v2\/comments?post=1464"}],"version-history":[{"count":10,"href":"https:\/\/quakeadvice.org\/index.php\/wp-json\/wp\/v2\/pages\/1464\/revisions"}],"predecessor-version":[{"id":1949,"href":"https:\/\/quakeadvice.org\/index.php\/wp-json\/wp\/v2\/pages\/1464\/revisions\/1949"}],"up":[{"embeddable":true,"href":"https:\/\/quakeadvice.org\/index.php\/wp-json\/wp\/v2\/pages\/1257"}],"wp:attachment":[{"href":"https:\/\/quakeadvice.org\/index.php\/wp-json\/wp\/v2\/media?parent=1464"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}