<?xml version="1.0" encoding="UTF-8" standalone="no"?><table-reference xmlns:xt="urn:xpressauthor:trackchanges" graph="None" id="_28df1abe-7894-4eb8-87de-574dbf562ecf"><num>6.3.4l</num><title id="_9a254c6c-5b0b-4f97-8bb5-1e5e6551b8b1">Maximum counter-strutting beam span — counter-strutting beam supporting tiled roof and plasterboard ceiling — roof load area = 12 m<sup id="_730ca54f-c1fc-4f5d-9d6d-eff96a08715b">2</sup></title><table id="_3f582a97-9b7f-47a1-88f1-98efae10d1a9" 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="_78c097be-a974-4b41-a9f8-4ea2da659c88">2</sup>)</entry></row><row><entry>0</entry><entry>6</entry><entry>12</entry></row></thead><tbody><row><entry>125 TFB</entry><entry>1.8</entry><entry>1.8</entry><entry>1.7</entry></row><row><entry>150 UB 14.0</entry><entry>2.0</entry><entry>1.9</entry><entry>1.9</entry></row><row><entry>200 UB 18.2</entry><entry>2.8</entry><entry>2.7</entry><entry>2.7</entry></row><row><entry>250 UB 31.4</entry><entry>5.0</entry><entry>4.8</entry><entry>4.7</entry></row><row><entry>310 UB 46.2</entry><entry>7.1</entry><entry>7.0</entry><entry>6.8</entry></row><row><entry>100 TFB</entry><entry>0.9</entry><entry>0.9</entry><entry>0.8</entry></row><row><entry>150 PFC</entry><entry>2.8</entry><entry>2.7</entry><entry>2.7</entry></row><row><entry>200 PFC</entry><entry>3.6</entry><entry>3.5</entry><entry>3.4</entry></row><row><entry>250 PFC</entry><entry>5.5</entry><entry>5.4</entry><entry>5.2</entry></row><row><entry>300 PFC</entry><entry>5.9</entry><entry>5.8</entry><entry>5.6</entry></row></tbody></tgroup></table><desc-note id="_3d9e92c4-db55-469b-94a0-88137bbd2cf7"><ol outputclass="numbered"><li id="_df848579-9857-452a-9e2f-0566fb8093cf">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="_b4ef44c2-582b-4e93-b247-efa6579e329a">Load combinations included are 1.35G, 1.2G + 1.5Q, 1.2G + W<sub id="_ceeb5a43-0ebe-4aa4-9586-d84a15f16910">U</sub> + 0.4Q, 0.9G + W<sub id="_2b0d7fc7-14bd-4be0-9c95-7176825d0d18">U</sub> for ULS and G + 0.7Q, G + W<sub id="_b31b13b4-c78f-4861-9be1-bcb6bc88a7a2">S</sub>.</li><li id="_ee7a98b6-f5d7-4621-a449-3a63e5124b18">0.9G + W<sub id="_db7fcce3-4f09-490d-9950-5a75a70059df">S</sub> for SLS with a maximum deflection of span/300.</li><li id="_6e7dfbc0-c048-455a-81e1-72e74cb6070a">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="_63598f17-42f3-4801-89c6-b9e388641f90">A ceiling load area of “0” must be used for strutting beams not supporting ceiling loads.</li></ol></desc-note></table-reference>