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FRP/steel composite constraint UHPC anchor plate and preparation method thereof

A technology of anchor plates and composite materials, which is applied in the direction of manufacturing tools, wind power generation, building components, etc., can solve the problems of heavy weight and disadvantages of anchors, and achieve the effect of reducing adverse effects

Pending Publication Date: 2022-06-07
FUZHOU UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the technical problem that the existing anchorage is heavy and unfavorable for application in offshore engineering infrastructure structures, and further provides a FRP / steel composite restrained UHPC anchor plate and a preparation method thereof;

Method used

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  • FRP/steel composite constraint UHPC anchor plate and preparation method thereof
  • FRP/steel composite constraint UHPC anchor plate and preparation method thereof
  • FRP/steel composite constraint UHPC anchor plate and preparation method thereof

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specific Embodiment approach 1

[0032] Specific implementation mode 1: refer to Figure 1 to Figure 4 Illustrating this embodiment, this embodiment provides a FRP / steel composite restraint UHPC porous anchor plate, the porous anchor plate includes a UHPC main body 1, an outer layer FRP restraint pipe 2, a restraint steel pipe 3, and N restraint protection clip bodies, N is a positive integer;

[0033] The UHPC main body 1, the outer layer FRP restraint pipe 2 and the restraint steel pipe 3 are coaxially arranged, the UHPC main body 1 is a truncated cone-shaped structure, and one end of the UHPC main body 1 is uniformly machined with an anchor plate anchor hole 10, and the outer layer FRP restraint pipe 2 Both the restraining steel pipe 3 and the constraining steel pipe 3 are in the shape of a truncated cylinder. The outer layer FRP restraining pipe 2 is sleeved on the outer side of the UHPC main body 1, and the outer layer FRP restraining pipe 2 is fitted with the outer surface of the UHPC main body 1. The r...

specific Embodiment approach 2

[0040] Specific implementation two: refer to Figure 1 to Figure 4 This embodiment is described. This embodiment further defines the anchor plate anchor hole 10 described in the specific embodiment 1. In this embodiment, the anchor plate anchor hole 10 is a tapered hole, and the anchor plate anchor hole 10 has a large opening. The end is arranged on the large mouth end of the UHPC main body 1 , and the small mouth end of the anchor hole 10 of the anchor plate is arranged on the small mouth end of the UHPC main body 1 . Other components and connection methods are the same as in the first embodiment.

specific Embodiment approach 3

[0041] Specific implementation mode three: refer to Figure 1 to Figure 4 This embodiment is described. This embodiment further defines the restraint protection clip described in the second embodiment. In this embodiment, the restraint protection clamp specifically includes a restraining spiral steel bar 4, a protective cone tube 5 and an anchor. The clip 6, the restraining spiral steel bar 4, the protective cone tube 5 and the anchor clip 6 are sequentially set from outside to inside, and the protective cone tube 5 is arranged in cooperation with the anchor hole 10 of the anchor plate. Other components and connection methods are the same as in the first embodiment.

[0042] In this embodiment, there are spiral restraint stirrups 4 outside the protective cone pipe 5, the protective cone pipe 5 provides surface penetration and extrusion protection for the anchor hole, the taper of the protective cone pipe 5 is consistent with the relevant parameters of the clip selected in the ...

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Abstract

The invention discloses an FRP / steel composite constraint UHPC anchor plate and a preparation method thereof, relates to the field of porous anchor plates for prestressed concrete structures, and aims to solve the technical problems that an existing anchorage device is large in weight and needs durable protection. The FRP / steel composite constraint UHPC porous anchor plate is provided by adopting a fiber reinforced resin matrix composite (FRP) with high strength and durability characteristics as a constraint material; a frustum-shaped steel pipe is adopted as a composite constraint material, an ultra-high performance concrete (UHPC) material is adopted as a local pressure stress material, and the novel anchor plate device is applied to common prestressed concrete structure engineering and has the characteristics of light weight, high strength and durability.

Description

technical field [0001] The invention relates to the field of porous anchor plates for prestressed concrete structures, in particular to an FRP / steel composite restraint UHPC anchor plate and a preparation method thereof. Background technique [0002] Prestressed steel porous anchor plates have been widely used in civil engineering, and are generally made of structural steel. Porous anchors are generally large in size, self-weight and high in cost, and the convenience of on-site handling needs to be improved. In addition, in harsh environments, steel members need to be protected and blocked. Generally, the prestressed anchorage ends are blocked from cracking in concrete. The long-term performance degradation of steel structure anchors will affect the end anchorage of prestressed members, the overall service of the structure, and even structural safety issues. In particular, with the application and development of offshore engineering infrastructure structures, it is necessary...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C5/12E04C5/08B28B23/00
CPCE04C5/12E04C5/122B28B23/00Y02E10/727
Inventor 吴香国邱发强朱三凡张学森陈树辉林翼锋
Owner FUZHOU UNIV
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