<?xml version="1.0" encoding="UTF-8" standalone="no"?><table-reference xmlns:xt="urn:xpressauthor:trackchanges" graph="None" id="_03197249-5f97-4923-a72b-61d4776980fa"><num>6.3.4f</num><title id="_0ccce4c4-4e7c-494c-a6db-654da7e5a889">Maximum counter-strutting beam span — counter-strutting beam supporting metal sheet roof and plasterboard ceiling — roof load area = 12 m<sup id="_72827e64-e3b3-4f21-8ac7-57a060cf63dd">2</sup></title><table id="_90a42fb2-a798-40fb-8216-4a1c743f3f42" keycol="1"><tgroup cols="4"><colspec colname="001" colnum="1" colwidth="129.75*"/><colspec colname="002" colnum="2" colwidth="100.75*"/><colspec colname="005" colnum="3" colwidth="100.75*"/><colspec colname="006" colnum="4" colwidth="100.80*"/><thead><row><entry morerows="1">Section</entry><entry nameend="006" namest="002">Ceiling load area (m<sup id="_6ea1fb5c-9a91-44ce-be28-bf4ff1419d92">2</sup>)</entry></row><row><entry>0</entry><entry>6</entry><entry>12</entry></row></thead><tbody><row><entry>125 TFB</entry><entry>2.2</entry><entry>2.1</entry><entry>2.0</entry></row><row><entry>150 UB 14.0</entry><entry>2.4</entry><entry>2.3</entry><entry>2.2</entry></row><row><entry>200 UB 18.2</entry><entry>3.3</entry><entry>3.2</entry><entry>3.0</entry></row><row><entry>250 UB 31.4</entry><entry>5.7</entry><entry>5.5</entry><entry>5.3</entry></row><row><entry>310 UB 46.2</entry><entry>8.2</entry><entry>7.9</entry><entry>7.7</entry></row><row><entry>100 TFB</entry><entry>1.1</entry><entry>1.0</entry><entry>1.0</entry></row><row><entry>150 PFC</entry><entry>3.4</entry><entry>3.2</entry><entry>3.1</entry></row><row><entry>200 PFC</entry><entry>4.2</entry><entry>4.1</entry><entry>3.9</entry></row><row><entry>250 PFC</entry><entry>6.4</entry><entry>6.2</entry><entry>6.0</entry></row><row><entry>300 PFC</entry><entry>6.9</entry><entry>6.6</entry><entry>6.4</entry></row></tbody></tgroup></table><desc-note id="_879c570b-7d1a-4ec4-a189-5464c9b17969"><ol outputclass="numbered"><li id="_5ffa264b-f59f-4ff7-ab95-58d872afe9ac">Load accounted for includes 0.2 kPa permanent ceiling, 0.4 kPa permanent roof, permanent member self-weight, 0.25 kPa imposed roof, positive roof wind pressure of 0.95 kPa and negative roof wind pressure of -1.49 kPa.</li><li id="_36595d98-cd37-44db-8f2b-69fcee1cbd2b">Load combinations included are 1.35G and 1.25G + 1.5Q, 1.25G + W<sub id="_7dfd54ef-cff4-4407-9fbb-82709a6bc16f">U</sub> + 0.4Q, 0.9G + W<sub id="_0704a88e-f662-41a7-936b-d662f200cbed">U</sub> for ULS and G + 0.7Q, G+W<sub id="_dd3acd57-4aa6-449a-b657-48fb1f091e4b">S</sub>.</li><li id="_04a594da-dfc8-4d1f-ba47-93c03ce1fe55">0.9G + W<sub id="_28e09b58-ade7-4558-85e1-39a846e5a11a">S</sub> for SLS with a maximum deflection of span/300.</li><li id="_e3c32d36-d158-481d-92f9-2f254d6b3164">Strutting beams are assumed to be partially restrained at both ends with no rotational restraint and are designed as members without full lateral restraint.</li><li id="_c9eca11e-9bc1-4dd3-8df0-5ed53f32c485">A ceiling load area of “0” must be used for strutting beams not supporting ceiling loads.</li></ol></desc-note></table-reference>