发明名称 |
ROOF CONSTRUCTION WITH STABILIZED Z-PURLINS |
摘要 |
<p>A roof construction having at least one roof slope is disclosed wherein at least four Z-purlins are laid across and secured to a number of rafters on the roof slope in a building and the roof deck is then secured on top of the Z-purlins. Tendencies toward Z-purlin roll over failure are counter balanced when at least two of the Z-purlins on the roof slope are oriented to face downwardly of the roof slope and at least two of the Z-purlins on the roof slope are oriented to face upwardly of the roof slope. The downwardly and upwardly oriented Z-purlins may be arranged in pairs of adjacent Z-purlins, each pair comprising one upwardly and one downwardly facing Z-purlin, or so that Z-purlins of one group face upwardly and Z-purlins of the other group face downwardly. The Z-purlins are stabilized by means of stiffeners secured to the purlins at bearing points and by means of tie straps extending between adjacent purlins.</p> |
申请公布号 |
CA1150030(A) |
申请公布日期 |
1983.07.19 |
申请号 |
CA19800362213 |
申请日期 |
1980.10.10 |
申请人 |
ARMCO INC. |
发明人 |
LAUTENSLEGER, RICHARD W.;BINGHAM, GEORGE R.;TREPANIER, PETER J. |
分类号 |
E04B7/00;E04C3/02;(IPC1-7):E04C3/02 |
主分类号 |
E04B7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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