CN202831408U

CN202831408U - Pre-tensioning method pre-stress tension anchor plate

Info

Publication number: CN202831408U
Application number: CN 201220401748
Authority: CN
Inventors: 杨峰; 蒋兴儿; 蒋少洋
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-08-14
Filing date: 2012-08-14
Publication date: 2013-03-27
Anticipated expiration: 2022-08-14

Abstract

A pre-tensioning method pre-stress tension anchor plate comprises a front panel, webs and a bottom plate, and is characterized in that a plurality of through holes used for being penetrated through by reinforcing steel bars are formed in the front panel and at least two webs are arranged on two sides of the through holes and perpendicular to the front panel. The beam-type anchor plate is good in rigidity, small in deformation and stress loss of steel strand tension, and therefore steel quantity used is saved and manufacturing cost is low. Meanwhile, due to the fact that the anchor plate which is placed on a reinforcing concrete anchor pillar is large in pressure-bearing surface, partial compression resistant requirements can be met.

Description

A kind of Pretensioned prestressing stretch-drawing anchor slab

Technical field

The utility model relates to the instrument that a kind of prefabricated units are used, and relates in particular to a kind of anchor slab for stretch-draw prestressing force.

Background technology

The tradition pre-tensioning system is answered the stretch-draw anchor slab in advance, owing to be held between the less beam of span, often adopts the king-sized steel plate of thickness, and when span is large especially, normal anchor post or the anchor beam that adopts band to wear reinforced hole, the anchor post cost is high, easily get rusty, versatility is poor, and service efficiency is lower.A kind of steel bar concrete anchor post cooperates the prestressed anchor system of beam type anchor slab to have no report.

The utility model content

Technical problem to be solved in the utility model is to overcome the deficiency of above-mentioned prior art, and the prestressed stretch-draw anchor slab that a kind of convenience is made, versatility is good and cost is low is provided.

A kind of Pretensioned prestressing stretch-drawing anchor slab according to the utility model provides comprises panel, web and base plate, and described panel is provided with a plurality of through holes of wearing reinforcing bar, and the both sides, hole are provided with two blocks of webs at least perpendicular to panel.

A kind of Pretensioned prestressing stretch-drawing anchor slab that provides according to the utility model also has following attached technical characterictic:

Described base plate is I-shaped, rectangle, and the plate center is provided with corresponding to panel and a plurality ofly wears the reinforcing bar through hole or at least one large rectangle hole is set.

Vertically be welded with stiffener between the web of described panel through hole both sides.

Be welded with trapezoidal stiffener between described panel and base plate in the end, the vertical stiffener that is welded with between outer coxostermum and base plate.

The steel plate of described panel is thick in 20mm, web and Bottom Board Steel thickness of slab 8-16mm, anchor slab overall height 200-500mm, length 500-800mm.

A kind of Pretensioned prestressing stretch-drawing anchor slab that provides according to the utility model compared with prior art has following advantage: at first, beam type anchor slab good rigidly, the distortion of the utility model employing are little, and the steel strand tension stress loss is little, so steel using amount is economized, cost is low; Secondly, the utility model is larger because of its pressure-bearing surface of anchor slab that is held on the steel bar concrete anchor post, so can satisfy local pouring; Again, anchor slab was changed conveniently when the utility model was made different prestressed girders, and amortization charge is low; Last the utility model is from heavy and light, and is easy for installation.

Description of drawings

Fig. 1 is front view of the present utility model

Fig. 2 is transverse cross-sectional view of the present utility model

Fig. 3 is panel figure of the present utility model

Fig. 4 is web sectional drawing of the present utility model

Fig. 5 is base plate figure of the present utility model

Fig. 6 is another base plate figure of the present utility model

Fig. 7 is another base plate figure of the present utility model

The specific embodiment

Referring to Fig. 1 to Fig. 7, among a kind of embodiment that the utility model provides, described stretch-draw steel plate comprises panel 1, web 2 and base plate 3, described panel 1 is provided with a plurality of through holes 4 of wearing reinforcing bar, the both sides, hole are provided with the beam type anchor slab that two blocks of webs 2 are comprised of panel 1, web 2 and base plate 3 at least perpendicular to panel 1, and its bending resistance and shear resistance are strengthened greatly, make the anchor slab deadweight lighter, amount of deflection is less, and cost reduces.

To Fig. 7, among a kind of embodiment that the utility model provides, described base plate 3 is I-shaped or rectangle referring to Fig. 4, and the plate center is provided with corresponding to panel 1 and a plurality ofly wears reinforcing bar through hole 4 or at least one large rectangle hole 7 is set.Greater than the base plate 3 of panel size or the I-shaped base plate 31 of two ends size expansion, its effect is to enlarge the bearing area that anchor slab acts on the steel bar concrete anchor post, when avoiding prestressed reinforcement stretch-draw, anchor post produces that partial pressing destroys and I-shaped base plate 31 is for reducing base plate 31 deadweights under the constant prerequisite of bearing area.

Referring to Fig. 2 to Fig. 7, among a kind of embodiment that the utility model provides, vertically be welded with stiffener 8 between the web of described panel 1 through hole 4 both sides, this stiffener 8 makes the stressed change single load bearing of panel 1 be bidirectional stress, alleviates deadweight thereby reduce panel 1 thickness.

Referring to Fig. 1 to Fig. 7, among a kind of embodiment that the utility model provides, 3 of described panel 1 and base plates are welded with trapezoidal stiffener 5,3 vertical stiffeners 6 that are welded with of outer coxostermum 2 and base plate, these two stiffeners 6 can make the counter-force on the base plate 3 evenly be delivered on the anchor slab, avoid base plate 3 distortion.

Claims

1. a Pretensioned prestressing stretch-drawing anchor slab comprises panel, web and base plate, it is characterized in that panel is provided with a plurality of through holes of wearing reinforcing bar, and the both sides, hole are provided with two blocks of webs at least perpendicular to panel.

2. Pretensioned prestressing stretch-drawing anchor slab as claimed in claim 1 is characterized in that described base plate is I-shaped, rectangle, and the plate center is provided with corresponding to panel and a plurality ofly wears the reinforcing bar through hole or at least one large rectangle hole is set.

3. Pretensioned prestressing stretch-drawing anchor slab as claimed in claim 1 is characterized in that vertically being welded with stiffener between the web of described panel through hole both sides.

4. Pretensioned prestressing stretch-drawing anchor slab as claimed in claim 1 is characterized in that between described panel and base plate being welded with in the end trapezoidal stiffener, the vertical stiffener that is welded with between outer coxostermum and base plate.

5. Pretensioned prestressing stretch-drawing anchor slab as claimed in claim 1 is characterized in that the steel plate of described panel is thick in 20mm, web and Bottom Board Steel thickness of slab 8-16mm, anchor slab overall height 200-500mm, length 500-800mm.