CN210529778U - Tubular pile resistance to plucking test fixture - Google Patents

Abstract

A tubular pile pulling resistance test fixture comprises two anchor ears and a plurality of fixture blocks, wherein the two anchor ears are sleeved outside a tubular pile and are fixedly connected through fasteners, the fixture blocks are provided with clamping holes, screws penetrate through the clamping holes and are connected with a flange plate arranged on the top surface of the tubular pile, the fixture blocks are abutted against the top of the anchor ears, and connecting blocks are arranged in the middle of the anchor ears; the utility model discloses have the time of shortening the experimental preparation work of tubular pile resistance to plucking, practice thrift the cost, improve test efficiency's effect.

Description

Tubular pile resistance to plucking test fixture

Technical Field

The utility model belongs to the technical field of the experimental technique of tubular pile resistance to plucking and specifically relates to a tubular pile resistance to plucking test fixture is related to.

Background

At present, in order to test the ultimate bearing capacity of a tubular pile in foundation engineering, a tubular pile pulling resistance test is required. The tubular pile pulling resistance test needs to prepare a tubular pile, the traditional method is to weld reinforcing steel bars on the end head of the tubular pile, pour concrete to form a pile cap, further fix the reinforcing steel bars and the end head of the tubular pile, pull the reinforcing steel bars upwards along the vertical direction through a force application device during the test, measure the force applied to the reinforcing steel bars of the pile cap, and judge whether the tubular pile meets the requirements according to the numerical value of the force.

The above prior art solutions have the following drawbacks: in the process of manufacturing the pile cap, concrete needs to be waited for to solidify, and the pile cap needs to be broken after the test is completed, so that the test efficiency is low, and the cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a tubular pile resistance to plucking test fixture, its detachable installs in the tubular pile, shortens the time of preparation work, and repetitious usage, practices thrift the cost and improves test efficiency.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a tubular pile resistance to plucking test fixture, includes two staple bolts and a plurality of fixture block, and two staple bolts are established the cover and are located outside the tubular pile, the staple bolt passes through the fastener and connects fixedly, the tubular pile top surface has the ring flange certainly, the card hole has been seted up to the fixture block, the screw is worn to be equipped with in the card hole, the screw with the ring flange is connected, and the fixture block with staple bolt top butt, the staple bolt middle part is equipped with the connecting block.

Through the technical scheme, the hoop is used for hooping and fixing the tubular pile, the force application device is used for upwards lifting the hoop through the connecting block, the clamping block is fixedly connected with the flange plate, and meanwhile the clamping block abuts against the top of the hoop, so that the axial displacement between the hoop and the tubular pile is limited, and the measuring result is more accurate; due to the adoption of the hoop, the process of manufacturing the pile cap in the prior art is omitted, the cost and the time are saved, and the anti-pulling test efficiency is improved.

Further, the fastener includes the otic placode, the otic placode is followed staple bolt axial extension wears to be equipped with the bolt between the otic placode of two adjacent staple bolts, bolt threaded connection has the nut.

Through the technical scheme, the installation and the disassembly of the hoop are facilitated by the bolt fixing connection mode, and the hoop can be ensured to clamp and fix the tubular pile.

Furthermore, a first reinforcing rib is arranged at the connecting position of the ear plate and the hoop.

Through the technical scheme, the rigidity of the ear plate is enhanced, so that the ear plate is not easy to bend and deform.

Furthermore, the middle of the hoop is provided with two fixing plates, the fixing plates axially extend along the outer wall of the hoop, the two fixing plates are respectively abutted against the side faces of the connecting block, and the fixing plates are fixed with the connecting block through welding.

Through above-mentioned technical scheme, the joint strength of increase connecting block and staple bolt makes the connecting block further be fixed in the staple bolt.

Furthermore, a second reinforcing rib is arranged at the connecting position of the fixing plate and the hoop.

Through above-mentioned technical scheme, strengthen the rigidity of fixed plate, make the difficult bending deformation of fixed plate, increase the joint strength of fixed plate and staple bolt.

Furthermore, the anchor ear is fixed with the clamp splice on two opposite sides of the connecting block, and the clamp splice is located between the two fixing plates.

Through above-mentioned technical scheme, further fixed connection piece makes the connecting block be difficult for bending deformation.

Furthermore, a plurality of threaded holes are formed in the flange plate, the circumferences of the threaded holes are uniformly formed in the flange plate, and the screws are in threaded connection with the threaded holes.

Through above-mentioned technical scheme, utilize screw and screw hole cooperation to be fixed in the ring flange with the fixture block, make things convenient for the installation and the dismantlement of fixture block, the screw hole circumference evenly sets up in the ring flange, makes the atress of ring flange even.

Furthermore, the clamping hole is long-strip-shaped, and the length direction of the clamping hole is the same as the radial direction of the flange plate.

Through above-mentioned technical scheme, the position of screw in the fixture block is adjustable, and then adjusts the fixed position of fixture block on the ring flange, adjusts the atress condition of tubular pile.

Further, the screw sleeve is provided with a gasket.

Through above-mentioned technical scheme, reduce the friction between screw and the fixture block, prevent that the screw pine from taking off.

The utility model has the advantages that:

1. the method has the advantages that the existing pile cap fixing method is replaced, the tubular pile is clamped and fixed by the anchor ear, the axial displacement of the tubular pile and the anchor ear is limited by the fixture block, the test result is more accurate, the anchor ear and the fixture block can be detached, the installation is convenient, the time is saved, the method can be used for multiple times, the cost is saved, and the efficiency of the tubular pile uplift test is improved;

2. the connecting block is further fixed through the fixing plate and the clamping block, so that the stability of the connecting block on the hoop is improved;

3. the positions of the connection of the ear plates, the fixed plates and the hoops are provided with reinforcing ribs, so that the strength of the ear plates and the fixed plates is improved, and the ear plates and the fixed plates are not easy to deform.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure of the pipe pile pulling resistance test fixture of the utility model;

fig. 2 is the utility model discloses partial spatial structure schematic diagram of tubular pile resistance to plucking test fixture.

In the figure: 1. a tubular pile; 11. a flange plate; 12. a threaded hole; 2. hooping; 21. an ear plate; 22. a bolt; 23. connecting blocks; 24. a fixing plate; 25. a clamping block; 26. a first reinforcing rib; 27. a second reinforcing rib; 3. a clamping block; 31. a clamping hole; 32. a screw; 33. a gasket.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, for the utility model discloses a tubular pile resistance to plucking test fixture, including two staple bolts 2 and a plurality of fixture block 3, 2 covers of two staple bolts are located outside tubular pile 1.

As shown in fig. 1, two anchor ears 2 are connected and fixed through fasteners, ear plates 21 are fixed on the anchor ears 2, the ear plates 21 are located on the vertical side edges of the anchor ears 2, the ear plates 21 extend axially along the anchor ears 2, bolts 22 are arranged between the ear plates 21 of two adjacent anchor ears 2 in a penetrating manner, the bolts 22 are in threaded connection with nuts, the two anchor ears 2 can hoop and fix the tubular pile 1, and meanwhile, the anchor ears 2 can be disassembled and assembled through the matching of the bolts 22 and the nuts, so that the test efficiency is improved; a first reinforcing rib 26 is fixed at the connecting position of the ear plate 21 and the hoop 2, so that the rigidity of the ear plate 21 is increased, and the ear plate 21 is not easy to bend and deform; two fixing plates 24 extending axially along the outer wall of the anchor ear 2 and a connecting block 23 fixed between the fixing plates 24 are fixed in the middle of the anchor ear 2, and the connecting block 23 is used for connecting the force application end of the force application device of the tubular pile 1 in the uplift test; the two fixing plates 24 are respectively abutted against the side surfaces of the connecting block 23, and the fixing plates 24 and the connecting block 23 are fixed by welding; the anchor ear 2 is provided with the clamping blocks 25 on two opposite side surfaces of the connecting block 23, the clamping blocks 25 are positioned between the two fixing plates 24, the contact area between the connecting block 23 and the anchor ear 2 is increased, and the connection and fixation stability between the connecting block 23 and the anchor ear 2 is enhanced; the second reinforcing ribs 27 are fixed at the connecting positions of the fixing plates 24 and the hoops 2, so that the rigidity of the fixing plates 24 is increased, and the fixing plates 24 are not easy to bend and deform.

As shown in fig. 2, the top surface of the tubular pile 1 is provided with a flange 11, the flange 11 is provided with a plurality of threaded holes 12, and the peripheries of the threaded holes 12 are uniformly arranged on the flange 11; the clamping block 3 is provided with a strip-shaped clamping hole 31, a screw 32 penetrates through the clamping hole 31, and the strip-shaped design of the clamping hole 31 enables the position of the screw 32 in the clamping block 3 to be adjustable, so that the position of the clamping block 3 on the top surface of the tubular pile 1 is adjusted; the screw 32 is sleeved with a washer 33 which can prevent the screw 32 from loosening; screw 32 and 12 threaded connection of screw hole are fixed in 1 top surfaces of tubular pile with fixture block 3, and 2 topside of staple bolt and the part butt that fixture block 3 stretches out 1 top surfaces of tubular pile, at resistance to plucking test in-process, the axial displacement that takes place between staple bolt 2 and tubular pile 1 can be restricted to fixture block 3.

The use method and the working principle;

the two hoops 2 are combined to surround the tubular pile 1, ear plates 21 of two adjacent hoops 2 are fixed through bolts 22, and the tubular pile 1 is clamped and fixed; fixture block 3 is fixed in the ring flange 11 of 1 top surface of tubular pile through screw 32, when carrying out the resistance to plucking experiment, upwards carry through connecting block 23 and draw staple bolt 2, fix the fixture block 3 at 1 top of tubular pile and can support the top of staple bolt 2 to take place axial displacement between restriction staple bolt 2 and tubular pile 1, make measuring result more accurate. Compared with the prior art, the embodiment utilizes the pipe pile 1 to realize fixing with the connection of the pipe pile anti-pulling test fixture from the flange plate 11, the fixing effect is good, the process of manufacturing a pile cap on the top surface of the pipe pile 1 in the prior art is omitted, the cost is saved, and the test efficiency is improved.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (9)

1. The utility model provides a tubular pile resistance to plucking test fixture which characterized in that: including two staple bolts (2) and a plurality of fixture block (3), two staple bolts (2) cover are located outside tubular pile (1), staple bolt (2) are connected fixedly through the fastener, tubular pile (1) top surface has ring flange (11) certainly, card hole (31) have been seted up in fixture block (3), screw (32) are worn to be equipped with in card hole (31), screw (32) with ring flange (11) are connected, and fixture block (3) with staple bolt (2) top butt, staple bolt (2) middle part is equipped with connecting block (23).

2. The tubular pile pulling-resistant test fixture of claim 1, characterized in that: the fastener includes otic placode (21), otic placode (21) are followed staple bolt (2) axial extension wears to be equipped with bolt (22) between otic placode (21) of two adjacent staple bolts (2), bolt (22) threaded connection has the nut.

3. The tubular pile pulling-resistant test fixture of claim 2, characterized in that: and a first reinforcing rib (26) is arranged at the connecting position of the ear plate (21) and the hoop (2).

4. The tubular pile pulling-resistant test fixture of claim 1, characterized in that: the middle of the hoop (2) is provided with two fixing plates (24), the fixing plates (24) extend axially along the outer wall of the hoop (2), the fixing plates (24) are respectively abutted to the side faces of the connecting blocks (23), and the fixing plates (24) are fixed with the connecting blocks (23) through welding.

5. The tubular pile pulling-resistant test fixture of claim 4, characterized in that: and a second reinforcing rib (27) is arranged at the connecting position of the fixing plate (24) and the hoop (2).

6. The tubular pile pulling-resistant test fixture of claim 4, characterized in that: the anchor ear (2) is fixed with clamp blocks (25) on two opposite side surfaces of the connecting block (23), and the clamp blocks (25) are positioned between the two fixing plates (24).

7. The tubular pile pulling-resistant test fixture of claim 1, characterized in that: the flange plate (11) is provided with a plurality of threaded holes (12), the circumferences of the threaded holes (12) are uniformly arranged on the flange plate (11), and the screws (32) are in threaded connection with the threaded holes (12).

8. The tubular pile pulling-resistant test fixture of claim 7, characterized in that: the clamping hole (31) is long-strip-shaped, and the length direction of the clamping hole (31) is the same as the radial direction of the flange plate (11).

9. The tubular pile pulling-resistant test fixture of claim 7, characterized in that: the screw (32) is sleeved with a gasket (33).

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