发明授权
- 专利标题: Method for constructing a truss from selected components
- 专利标题(中): 从选定部件构造桁架的方法
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申请号: US12492546申请日: 2009-06-26
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公开(公告)号: US08434232B2公开(公告)日: 2013-05-07
- 发明人: John E. Jones, III , Benjamin C. Donner
- 申请人: John E. Jones, III , Benjamin C. Donner
- 申请人地址: US WA Federal Way
- 专利权人: Weyerhaeuser NR Company
- 当前专利权人: Weyerhaeuser NR Company
- 当前专利权人地址: US WA Federal Way
- 代理机构: Christensen O'Connor Johnson Kindness PLLC
- 主分类号: B21D47/00
- IPC分类号: B21D47/00
摘要:
A method for constructing a truss includes selecting three or more chord elements (two or more upper chord elements and one or more lower chord elements) and one or more web elements. The selecting of the components includes estimating a first change in length for each of the two or more upper chord elements and estimating a second change in length of each of the one or more lower chord elements, the first change in length and the second change in length in response to changes in conditions to which the truss is exposed. The one or more web elements are selected from the plurality of wood members to compensate for the deformation caused by the first change in length and the second change in length.
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