Prestressed reforcement anchoring method and its elastic clamp piece and rigid clamping piece
A technology of prestressed tendons and anchoring methods, applied to structural elements, building components, building reinforcements, etc., can solve the problems of reduced anchoring efficiency, damage to prestressed tendons, thickening, etc., and achieve high anchoring efficiency
Active Publication Date: 2010-10-06
柳州市桥厦科技发展有限公司
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[0019] The present invention will be described in further detail below in conjunction with accompanying drawing embodiment:
[0020] Figure 1 to Figure 3 The shown inner clip is an object surrounded by an inner surface, an outer surface, two side end surfaces connecting the inner surface and the outer surface, and a small end surface and a large end surface. Its inner surface is a cylindrical surface for clamping prestressed tendons, and its outer surface is a tapered surface with a taper of 1:6 for joining with the clamping surface of the outer clip. The inner clip is made of corundum with a particle size of 100 mesh and a hardness of more than HRC65 compounded in high-density polyethylene plastic. The formula amount of corundum and high-density polyethylene plastic is: per 1000 grams of high-density polyethylene Vinyl plastic is mixed with 15.6 grams of corundum, and the result is converted to a content of corundum of
[0021] Each cubic centimeter contains 8,000 grains. ...
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The present invention provides a method for anchoring the prestressed rib and the used elastic clamp and rigid clamp. The method is firstly traversing the prestressed rib through the taper hole of the anchor slab, adopting a plurality of elastic clamps for surrounding-retaining the external surface of the prestressed rib, adopting a plurality of rigid clamps for surrounding-retaining outside the elastic clamps, then moving the rigid clamps and the elastic clamps to the direction of the small end of the taper hole along with the prestressed rib which is retained and stretched by the clamps to retain the prestressed rib in the anchor slab for anchoring; the elastic clamp uses the inside retaining surface which is made of hard particles and the plastic size-enlarging material that connects and forms the hard particles as the cylindrical surface, and the external surface is the clamp of the conical surface; the inside retaining surface and the external surface of the rigid clamp are all conical surfaces. The invention is used in the construction prestressed project, comparing with the prior art the invention will not generate damage to the prestressed rib, on one hand the anchoring efficiency of the anchorage can be increased and on the other hand the prestressed rib which is made of the material that is easily broken by the radial damage can be retained.
Description
technical field [0001] The invention relates to the technical field of building prestressed engineering, in particular to a method for connecting and anchoring prestressed tendons and anchor plates and a clip used in the method. Background technique [0002] In building prestressing engineering, the anchors for connecting and anchoring prestressed tendons are mainly anchor plates and clips, and the anchor plates are usually provided with multiple tapered through holes on the plate body according to the number of prestressed tendons; Most of the clips include a tapered ring as a base, and its outer surface is a tapered surface that matches the anchor plate and has the same taper as the anchor plate’s taper hole; the inner surface of the base is used for clamping The clamping surface that holds the prestressed tendons is mostly processed on a cylindrical surface with threads or ring teeth with a triangular cross-section. According to needs and in order to improve the clamping...
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IPC IPC(8): E04C5/12E04C5/08
Inventor 彭学石令明林若森黄建勋陈勇棠关来德覃日强陈文勇陈华王大红韦华南
Owner 柳州市桥厦科技发展有限公司