CN201695682U

CN201695682U - Anchorage

Info

Publication number: CN201695682U
Application number: CN2010202417238U
Authority: CN
Inventors: 罗维成; 应小军; 单兰亮; 邢军; 程剑兵
Original assignee: Sinohydro Bureau 2 Co Ltd
Current assignee: Sinohydro Bureau 2 Co Ltd
Priority date: 2010-06-23
Filing date: 2010-06-23
Publication date: 2011-01-05
Anticipated expiration: 2020-06-23

Abstract

The utility model discloses an anchorage for large cantilever steel formworks of mass concrete walls of hydraulic, industrial and civil architectures. The anchorage mainly comprises an embedded bolt, a climbing cone, a top and a stress bolt, wherein the climbing cone comprises a conical nut, a movable bowl and a washer, the outer wall of the conical unit is provided with a groove, in which the movable bowl and the washer are mounted, the washer is arranged between the movable bowl and the groove, both ends of the conical nut are a bottom opening and an end opening, one end of the embedded bolt is welded with a tail base plate, the other end of the embedded bolt is screwed in the bottom opening, the end opening is screwed on the stress bolt, and the top is sleeved on the stress bolt. The anchorage as the advantages of wide application range, convenient dismounting, safety, firmness, long service life, reusability, cost saving and the like.

Description

Ground tackle

Technical field

The utility model relates to a kind of ground tackle that is used for the large-scale Steel Cantilever template of massive concrete walls body of water conservancy project, industry and civilian construction.

Background technology

Hydraulic structure such as gravity dam, lead in the construction of wall and gate pier and bridge high pier, the domestic past is mainly adopted combined steel formwork, wooden form or large steel moulding plate are constructed, bear the lateral pressure of concrete with lacing wire or split bolt to template, template is shelved on steel pipe scaffold or the plug-in tripod, steel pipe scaffold or plug-in tripod are usually with L shaped gib headed bolt anchoring on the wall, after the form removal, steel pipe scaffold or plug-in tripod will be hung down one deck or next flowing water section, and of L shaped gib headed bolt is because of exposing concrete surface, need blow method with oxygen-acetylene flame or electric welding and cut off, simultaneously the concrete wall surface also be needed to handle once more.This method is time-consuming, and spillage of material is big, and operation inconvenience is easy to destroy concrete during the cutting exposed steel bar, will have a strong impact on quality of concrete and appearance effect.

In recent years, the cantilever form technology is just applied at home, and conventional cantilever form is mainly solid on the concrete wall of having built by ground tackle.Ground tackle structure in the market comprises pre-embedded bolt, collar nut and stressed bolt, collar nut is similar to the reinforced bar sleeve joint, the one end generally is connected on the pre-embedded bolt, the other end is connected with stressed bolt, behind the concreting, all working load are all passed to collar nut by stressed bolt, pass to pre-embedded bolt by collar nut, are passed in the concrete of having built by pre-embedded bolt again.Finish when dismounting building, collar nut and stressed bolt visual concrete surface can be dismantled, and of pre-embedded bolt still needs to cut off.There is dismounting inconvenience in this ground tackle, stressed bolt poor mechanical property, problem such as ground tackle is short application life, and cantilever form poor stability and construction quality are not high.

The utility model content

The utility model purpose provides a kind of convenient disassembly, and safety is firm, long service life, the ground tackle that is used for large-scale Steel Cantilever template that can recycle.

In order to achieve the above object, technical scheme provided by the utility model is: a kind of ground tackle, it mainly comprises pre-embedded bolt, climb awl, gyro and stressed bolt, climb awl and comprise cone nut, movable button bowl and packing ring, the cone nut outer wall is provided with groove, movable button bowl and gasket sleeve are contained on the groove, and packing ring is arranged between movable button bowl and the groove, the two ends of cone nut are respectively end mouth and port, pre-embedded bolt one end is welded with cascabel plate, the other end and Di Kou are spirally connected, and port and stressed bolt are spirally connected, and gyro is sleeved on the stressed bolt.

Further, gyro is many shoulders cone structure.

Further, cascabel plate is provided with the reinforcing rib that is resisted against pre-embedded bolt.

Further, the mouth interior diameter is less than the port interior diameter at the end.

The beneficial effect of the utility model ground tackle is: the ground tackle that the utility model obtains has applied range, convenient disassembly, and safety is firm, and long service life can be used repeatedly, saves advantages such as cost and raising construction quality.

Description of drawings

Fig. 1 is the structural representation of ground tackle;

Fig. 2 is the structural representation of climbing awl;

Fig. 3 is the right view of Fig. 2;

Wherein: 1 pre-embedded bolt, 2 climb awl, 3 gyros, 4 stressed bolts, 11 cascabel plates, 12 reinforcing ribs, 21 cone nuts, 22 movable button bowls, 23 packing rings, 24 grooves, 25 end mouths, 26 ports.

The specific embodiment

Below in conjunction with the description of drawings specific embodiment of the present utility model.

As Fig. 1, Fig. 2 and shown in Figure 3, a kind of ground tackle, it mainly comprises pre-embedded bolt 1, climbs awl 2, gyro 3 and stressed bolt 4, climbs awl 2 and comprises cone nut 21, movable button bowl 22 and packing ring 23.Cone nut 21 profiles are taper, its two ends are respectively end mouth 25 and port 26, and the interior diameter of end mouth 25 is less than the interior diameter of port 26, and mouth 25 profiles in the end are taper, port 26 profiles are hexagon, and the interior hexagonal socket wrench of standard easy to use will be climbed awl 2 and be taken out in concrete.Cone nut 21 outer walls are provided with groove 24, movable button bowl 22 and packing ring 23 are sleeved on the groove 24, and packing ring 23 is arranged between movable button bowl 22 and the groove 24, guarantee can relatively rotate between cone nut 21 and the movable button bowl 22, simultaneously, prevent that movable button bowl 22 from coming off from cone nut 21.Pre-embedded bolt 1 one ends welding cascabel plate 11, cascabel plate 11 is provided with the reinforcing rib 12 that is resisted against pre-embedded bolt 1, and pre-embedded bolt 1 other end and end mouth 25 are spirally connected.Gyro 3 is sleeved on the stressed bolt 4, and stressed bolt 4 is spirally connected with port 26.

During construction, at first will climb awl 2 and be installed on the pre-embedded bolt 1, with connecting bolt they will be connected preposition on the template together then, and make and climb awl 2 port 26 and the rim of a bowl of movable button bowl 22 is close to form surfacing, after having built concrete, dismantle earlier connecting bolt, stripping again.After the form removable, the port 26 of climbing awl 2 is loaded onto stressed bolt 4 and gyro 3, then cantilever form is hung on gyro 3 with hanging device, calibration template is finished template and is installed, and the anchoring piece of one deck template down is installed, concreting enters next layer concrete template erection procedure.When cantilever form is removed, the stressed bolt 4 of outwarding winding, dismounting stressed bolt 4 and gyro 3, be locked with hexagonal socket wrench and climb awl 2 port, be rotated counterclockwise cone nut 21 rotations, movable button bowl 22 because and between the cone nut 21 space is arranged and keeps motionless, reduced and climbed the resistance that awl 2 takes out, climbed awl 2 and take out smoothly, and can use repeatedly.Stressed bolt 4, gyro 3 and climb after awl 2 removes are filled processing to the pit that metope forms with microdilatancy mortar or dry mortar.

The utility model ground tackle awl 2 of climbing of ground tackle in work progress is installed and removed conveniently with gyro 3, not being only applicable to vertical formwork installs, also be applicable to inclination template installation (as dam back side template and bracket soffit formwork), reduce a large amount of attached support systems, template can be in place rapidly, the efficiency of construction height, and concrete quality is unaffected, outward appearance is clean and tidy, effective, and concrete surface need not to do antirust and preservative treatment, and construction quality is improved.

When the utility model ground tackle is used for concrete cantilever template, its structure power transmission process is: working load is passed to gyro 3 by the cantilever shelf of cantilever form, pass to stressed bolt 4 by gyro 3, by stressed bolt 4 pass to climb the awl 2, pass to pre-embedded bolt 1 by climbing awl 2, pass in the concrete of having built by pre-embedded bolt 1 again.

Stressed bolt 4 bears flexural stress simultaneously, shear stress and tensile stress, also have high-frequency excitation power and impact force, it is the critical component that bears the whole loads of cantilever large steel moulding plate, whether the cantilever large steel moulding plate safety, the mechanical property that depends on stressed bolt 4 to a great extent, the stressed bolt 4 of the utility model ground tackle adopts the 40Cr steel to make, heat with salt bath when modified, cool off in oil, carry out high tempering then, the metallographic microstructure that obtains is a tempered sorbite, hardness 30～35HRC, after heat treatment is intact, carry out ultrasonic testing/ ultrasonic examination again, the mechanical property of stressed screw rod 4 improves.

Gyro 3 is the accurate cast steel part of shoulder vertebral body structure more than; the hypotenuse draw-in groove of its excircle is convenient to the suspension that cantilever form is quit; improved the reliability of its suspension; simultaneously; the screw thread of 3 pairs of stressed bolts 4 of gyro has played protective effect; having reduced cantilever form quits when hanging to the impact stress and the shear stress of stressed bolt 4, the safety that improved cantilever form.

The stressed character and stressed the varying in size of pre-embedded bolt 1 and stressed bolt 4,1 effect that is subjected to tensile stress of pre-embedded bolt, so pre-embedded bolt 1 is different with the specification of stressed bolt 4, the nominal diameter of stressed bolt 4 is greater than pre-embedded bolt 1, and mouth 25 interior diameters in the end are less than port 26 interior diameters, can link together pre-embedded bolt 1 and stressed bolt 4 well, thereby the consumption of saving the precious metal material reduces construction cost.

The design of cascabel plate 11 and reinforcing rib 12 can be passed in the concrete climbing awl 2 suffered pulling force, has improved the anchored force of concrete to pre-embedded bolt 1.

But the utility model ground tackle maximum bearing load is 45t, and monolithic cantilever form size can reach 3000mm * 3300mm (wide * height), satisfies the requirement of large volume concrete structural quick template supporting fully.

Claims

1. ground tackle, it mainly comprises pre-embedded bolt (1), climb awl (2), gyro (3) and stressed bolt (4), it is characterized in that: the described awl (2) of climbing comprises cone nut (21), movable button bowl (22) and packing ring (23), described cone nut (21) outer wall is provided with groove (24), described movable button bowl (22) and packing ring (23) are sleeved on the groove (24), and packing ring (23) is arranged between movable button bowl (22) and the groove (24), the two ends of cone nut (21) are respectively end mouth (25) and port (26), described pre-embedded bolt (1) one end is welded with cascabel plate (11), the other end and Di Kou (25) are spirally connected, described port (26) is spirally connected with stressed bolt (4), and described gyro (3) is sleeved on the stressed bolt (4).

2. ground tackle according to claim 1 is characterized in that: described gyro (3) is many shoulders cone structure.

3. ground tackle according to claim 1 is characterized in that: described cascabel plate (11) is provided with the reinforcing rib (12) that is resisted against pre-embedded bolt (1).

4. ground tackle according to claim 1 is characterized in that: mouth of the described end (25) interior diameter is less than port (26) interior diameter.