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发明公开
CN106994739A 一种抗腐蚀FRP全灌浆套筒及其作法 无效 - 驳回

一种抗腐蚀FRP全灌浆套筒及其作法
摘要：
本发明公开了一种抗腐蚀FRP全灌浆套筒及其作法，属于土木工程应用技术领域，尤其涉及跨海大桥抗腐蚀技术领域。FRP全灌浆套筒包括FRP套筒本体和钢管模具，所述FRP套筒本体由FRP布分层缠绕钢管模具成型，FRP套筒本体上设有灌浆口和出浆口，所述FRP套筒本体两端开口，所述FRP套筒本体内腔设有梯形凹槽并沿周面延伸，与所述钢管模具外壁的突起相配合。本发明FRP全灌浆套筒本体由FRP布分层缠绕，以保证灌浆套筒足够的抗腐蚀能力，避免出现被连接纵筋完好而套筒先腐蚀现象。另外，高强FRP材料提高灌浆套筒的抗拉强度，同时套筒内腔梯形凹槽与砂浆的机械咬合力进一步增加套筒抗拉强度。
摘要（英）：

The invention discloses an anti-corrosion FRP full grouting sleeve and a manufacturing method thereof, belongs to the technical field of civil engineering application, and particularly relates to the technical field of cross-sea bridge corrosion resistance. The FRP full grouting sleeve comprises an FRP sleeve body and a steel pipe mould. The FRP sleeve body is formed by winding FRP cloth around the steel pipe mould in a layered manner, a grouting opening and a grout outlet are formed in the FRP sleeve body, and openings are formed in the two ends of the FRP sleeve body. A trapezoidal groove is formed in an inner cavity of the FRP sleeve body, extends in the circumferential face, and is matched with a protrusion on the outer wall of the steel pipe mould. The FRP full grouting sleeve body is formed by winding the FRP cloth in the layered manner in order to guarantee the enough corrosion resistance of the grouting sleeve, and the phenomenon that connected longitudinal ribs are complete, but the sleeve is corroded earlier is avoided. In addition, the tensile strength of the grouting sleeve is improved through a high-strength FRP material, and meanwhile the tensile strength of the sleeve is further enhanced through the mechanical interlocking force of the trapezoidal groove in the inner cavity of the sleeve and mortar.

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