摘要
已有的FRP拉索锚固系统有制造工艺复杂、尺寸较大、可靠性差、成本昂贵等缺陷。本文从全新的角度提出一种基于FRP片材的复合材料拉索锚固系统———波形齿夹具锚锚固系统。波形齿夹具锚主要由上波形齿板、加劲波形板、下波形齿板、压紧及锁定装置等组成。依靠压紧及锁定装置将FRP片材夹持并锚固于上、下波形齿板及加劲波形板之间。从理论上分析了波形齿夹具锚的工作原理和力学模型,得出了波形齿夹具锚的锚固判别准则以及FRP片材锚固长度的影响因素,为波形齿夹具锚的优化设计奠定了基础。试验结果亦证明:波形齿夹具锚是以粘结力和摩擦力工作的,具有极高的可靠性和完美的力学性能。
There are some shortcomings of the existing anchorage systems of FRP, such as complicated workmanship large size, poor reliability and costly. This paper presents an innovative anchorage system of FRP composite cable wave-shapedteeth-grip anchor （WSGGA） based on FRP sheets. WSGGA mainly consists of top wave-shape-teeth plate, reinforced waveshape plate, bottom wave-shape-teeth plate and apparatus of pressing and locking. High strength FRP composites, such as CFRP, GFRP or AFRP, are bonded between the top wave-shape-teeth plate, the reinforced wave-shape plate and the bottom wave-shape-teeth plate. With the pressing and locking equipment, the FRP composite can be gripped and anchored tightly. This paper analyses the mechanism and model of WSGGA to obtain the anchorage criterion of FRP in WSGG anchor, which sets up a basis for the optimal design of WSGGA. The test result indicates that WSGGA depends on adhesion and friction, and are highly reliable and mechanically excellent.
出处
《土木工程学报》
EI
CSCD
北大核心
2005年第10期49-53,71,共6页
China Civil Engineering Journal
