CN1442589A

CN1442589A - Anchored liner plate

Info

Publication number: CN1442589A
Application number: CN 02104893
Authority: CN
Inventors: 李国平; 谢正元; 毕贵平; 关炳良; 强壮; 秦立方
Original assignee: LIUZHOU BUILDING MACHINERY GENERAL FACTORY
Current assignee: LIUZHOU BUILDING MACHINERY GENERAL FACTORY
Priority date: 2002-03-05
Filing date: 2002-03-05
Publication date: 2003-09-17
Anticipated expiration: 2022-03-05
Also published as: CN1215240C

Abstract

An anchor shoe is a hollow (2-4)-step circular tower structure with a bearing plate. It has a central conic through hole and a recessed circle for holding anchor plate in it. Said anchor shoe is made integrally up by casting. Its advantages are small size, uniform and low stress, light weight, less damage to anchor cable and low cost.

Description

Anchor plate

One, technical field:

The present invention relates to a kind of prestressed anchor parts, particularly a kind of anchor plate.

Two, background technology:

Existing anchor plate becomes the tower shape of a hollow as shown in Figure 2 substantially on the profile, be made of a truncated rectangular pyramids, a round platform and four ribs, wherein on the ribs injected hole is arranged; Monoblock cast is shaped.The deficiency that this structure exists is: one, and the truncated rectangular pyramids area is excessive, and bottom two intercostal concrete castings are difficult for closely knit, and it is more that surface, anchorage zone reinforcing bar cuts off quantity; Its two, the concrete stress under anchorage is bigger, and stress is tending towards concentrated under the rib; Its three, in anchor plate inside, the angle of outer ring steel strand and axis is bigger, makes in the stretching process, probability that steel strand are cut off increases; Its four, appearance and size is bigger, weight is heavier, material consumption is more, the cost of production height.

Three, summary of the invention:

Technical problem to be solved by this invention is: it is big and concentrated to solve existing anchor plate concrete stress under anchorage, the angle of inner outer ring steel strand of anchor plate and axis is bigger, the problem that appearance and size, volume are big, the material consumption is many, cost of production is high, a kind of product structure optimization is provided, and properties of product are improved; The distribution of stress under anchorage is more reasonable in the anchorage zone, and product is from heavy and light, material consumption is few, cost is low anchor plate.

Its concrete structure is: a kind of anchor plate, be tower structure, the band loaded plate of an inner hollow, it is characterized in that: the circular tower shape structure that this anchor plate profile is 2～4 layers of step, be circular arc between each layer step and the body of the tower, R=15～50mm, column foot be the sinking anchor slab tubular partly, tapering γ=2～5 of the taper hole of its hollow °, the thickness δ of loaded plate ₁Be 30～70mm, body of the tower wall thickness δ ₂Be 7～15mm, step thicknesses δ ₃Be 7～12mm, monoblock cast is shaped.

Because adopt said structure, anchor plate of the present invention has the following advantages:

1. the anchor plate size is dwindled, and top layer, anchorage zone area on average reduces about 30% than old anchor plate, and reinforcing bar cuts off quantity to be reduced;

2. be circular arc between each layer step and the body of the tower, structure optimization, it is closely knit to be convenient under the anchor concrete casting;

3. anchor plate has 2～4 layers of step, forms multi-support face combination pressure-bearing, make stress under anchorage littler, distribute and more become evenly, stress value reduces 10%～25% than old anchor plate, has improved the degree of safety of concrete component;

4. tapering γ=2～5 of the taper hole of its hollow °, thereby in anchor plate inside, the angle between outer ring steel strand and axis reduces 1～4 ° than old anchor plate, makes in the stretching process, the probability that steel strand are cut off reduces;

5. the old anchor plate of anchor plate weight ratio on average alleviates the 0.25kg/ hole, reduces material consumption, has reduced manufacturing cost, if calculate to produce 5,000,000 holes every year, but economical with materials is taken 2,000,000 yuan approximately.

Four, description of drawings:

Fig. 1: the present invention's anchor plate structural representation;

Fig. 2: existing anchor plate structural representation.

Five: the specific embodiment:

A kind of anchor plate, as shown in Figure 1: this anchor slab is that an inner hollow, profile are the circular tower shape structure of 2～4 layers of step, be circular arc between each layer step and the body of the tower, R=15～50mm, column foot is the tubular part of sinking anchor slab, tapering γ=2～5 of the taper hole of its hollow °, the thickness δ of loaded plate ₁Be 30～70mm, body of the tower wall thickness δ ₂Be 7～15mm, step thicknesses δ ₃Be 7～12mm, monoblock cast is shaped.

Claims

1, a kind of anchor plate is tower structure, the band loaded plate of an inner hollow, it is characterized in that: the circular tower shape structure that this anchor plate profile is 2～4 layers of step, be circular arc between each layer step and the body of the tower, R=15～50mm, column foot are the tubular part of sinking anchor slab, and monoblock cast is shaped.

2, anchor plate as claimed in claim 1 is characterized in that: the thickness δ of the loaded plate of described anchor plate ₁Be 30～70mm, body of the tower wall thickness δ ₂Be 7～15mm, step thicknesses δ ₃Be 7～12mm.

3, anchor plate as claimed in claim 1 or 2 is characterized in that: tapering γ=2～5 of the taper hole of its hollow °.