发明名称 Retrofitting apparatus and method for securing roof frames against winds
摘要 An apparatus and method is provided for tying down an existing roof frame to resist windstorm uplift forces, in which an elongate connector is inserted slantingly upward through a hole through the roof frame, allowing an upper end of the connector to protrude from the roof frame to receive a head member which is detachably attached thereto in order to prevent the roof frame from moving upward relative to the connector under an uplift force. The lower end of the connector is secured to an underlying wall such that the connector applies a restraining force against wind uplift forces.
申请公布号 US7562494(B2) 申请公布日期 2009.07.21
申请号 US20050116226 申请日期 2005.04.28
申请人 PLATTS ROBERT E 发明人 PLATTS ROBERT E.
分类号 E04B7/00 主分类号 E04B7/00
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