CN208545990U

CN208545990U - A detachable steel underpinning device

Info

Publication number: CN208545990U
Application number: CN201820407232.2U
Authority: CN
Inventors: 吴二军; 张能伟; 吴畏; 丁芸芸; 付金笛; 姬文鹏
Original assignee: Hohai University HHU
Current assignee: Hohai University HHU
Priority date: 2018-03-23
Filing date: 2018-03-23
Publication date: 2019-02-26
Anticipated expiration: 2028-03-23

Abstract

The utility model discloses a detachable steel underpinning device, which comprises two trapezoidal limiting bodies, two wedge-shaped anchor plugs and a connection limiting mechanism, the two trapezoidal limiting bodies and the two wedge-shaped anchor plugs They are symmetrically fixed and arranged on both sides of the original underpinning column through the connection limiting mechanism, and there is a wedge-shaped anchor plug between the trapezoidal limiting body and the original underpinning column. The utility model directly reinforces the periphery of the original underpinning column, does not cause damage to the original underpinning column, supports the original underpinning column through the trapezoidal limiting body and the wedge-shaped anchor plug, can bear a large load, and has better performance. Bearing capacity and ductility; the utility model is simple in structure, easy to install, and can be manufactured in batches in factories, and adopts open-hole connecting plates of different sizes according to the size of the original underpinning column that is not used, so that the utility model can be used in a wider range; this device It is easy to install and dismantle, and there is almost no damage to the surface of the column. After the use is completed, the device can be dismantled and recycled for multiple uses.

Description

A kind of detachable steel underpinning device

Technical field

The utility model relates to a kind of detachable steel underpinning devices, belong to underpinning device technical field.

Background technique

Underpinning technique, which refers to, is effectively transmitted to the load of original building on moving structure.The load master of inhering architecture The transmitting of power is realized by the interface shear stress between underpinning structure and column.

Underpining there are mainly four types of modes to column domestic at present: armored concrete two-beam type column bracket changes, fashioned iron split bolt It underpins, single beam type column bracket changes, punching is worn reinforcing bar and underpined in column.It is that China applies most at present that armored concrete two-beam type column bracket, which changes, A kind of extensive support and change method, the support and change method is easy for construction, highly-safe.But this underpins the not reproducible utilization of node, generates Building waste can to pollution environment；Fashioned iron split bolt support and change method also belongs to two-beam type and underpins, this underpin node have compared with Good bearing capacity and ductility, is able to bear very big load.But this underpins node installation fashioned iron, punching wears bolt and in fashioned iron The construction technologies such as grouting are complex between column, and practical application is less；It is big that single beam type column bracket changes node construction difficulty, column surrounding Underpin that rigidity is uneven and column indulges the anchoring of muscle and is difficult to be effectively ensured, so only smaller, lighter in weight in some scale of constructions It is used in underpinning structure；It is by drilling on column that reinforcing bar support and change method is worn in punching in column, and to reinforcing bar is worn, then formwork erection is poured Concrete forms joist, and this method is larger to original structure damage, section can be made to reduce in construction, reduce degree of safety.

Utility model content

Technical problem to be solved in the utility model is to overcome the deficiencies of existing technologies, and provides a kind of detachable steel support Changing device, assembling and disassembling are easy, reusable, applied widely, not damaged to column surface.

In order to achieve the above objectives, the utility model provides a kind of detachable steel underpinning device, including two trapezoidal limits Body, two wedge-shaped male cones and connection position-limit mechanism, two trapezoidal limit bodies, two wedge-shaped male cones pass through connection limit Position mechanism is symmetrically fixed at and underpins former column two sides, and the trapezoidal limit body underpins between former column and has a wedge shape Male cone.

Preferentially, the trapezoidal limit body includes bottom surface level board, two end plates, cover board, two hang plates, described in two End plate upper end is respectively fixedly connected with the rear wall of the front side wall of the cover board, the cover board, and two end plate lower ends are solid respectively Surely the front side wall of the bottom surface level board, the rear wall of the bottom surface level board are connected, two hang plate upper ends are solid respectively Surely the left side wall of the cover board, the right side wall of the cover board are connected, two hang plate left ends and right end are respectively fixedly connected with The side wall of the end plate of two sides, two hang plate lower ends are respectively fixedly connected with the left side wall of the bottom surface level board, the bottom The right side wall of face level board.

Preferentially, the trapezoidal limit body includes ribbed stiffener, and four side walls of the ribbed stiffener are laterally fixedly connected respectively In the middle part of two end plates, the middle part of two hang plates.

Preferentially, the wedge-shaped male cone includes clapboard, and the shape of the clapboard is right-angle prismatic column, the clapboard Including right angle side wall one, right angle side wall two and porch side walls, the right angle side wall one or the right angle side wall two are against underpining original Column, the porch side walls are matched with the inclination angle of hang plate in the trapezoidal limit body.

Preferentially, the wedge-shaped male cone includes multiple plain bars, on the right angle side wall one or the right angle side wall two Multiple plain bars are fixedly installed, multiple plain bars, which are resisted against, to be underpined on former column.

Preferentially, connection position-limit mechanism includes two aperture connecting plates and eight Screw arbor with nut at both-ends, and two connecting plates are perpendicular To the front and back side for being symmetrically disposed in two trapezoidal limit bodies, two connecting plates respectively symmetrically open up eight cooperations The screw hole one of the Screw arbor with nut at both-ends opens up cooperation four for cooperating institute on two end plates on the trapezoidal limit body respectively The screw hole two of screw hole one is stated, eight Screw arbor with nut at both-ends pass through two connecting plates, two trapezoidal limit bodies.

Preferentially, the connection position-limit mechanism includes four perforated panels and four Screw arbor with nut at both-ends, is erected on the clapboard To the vertical screw hole one for opening up two cooperation Screw arbor with nut at both-ends, described pair of drawing spiral shell of two cooperations is opened up on the perforated panel The screw hole three of bar, four Screw arbor with nut at both-ends are each passed through two clapboards, on the same clapboard Two Screw arbor with nut at both-ends upper and lower sides are fastened after being arranged the perforated panel respectively by nut.

Preferentially, the bottom surface level board, the end plate, the cover board, the hang plate, the ribbed stiffener, the wedge Shape plate, the plain bar, the aperture connecting plate, the aperture connecting plate, the perforated panel, the Screw arbor with nut at both-ends material are equal For steel.

The utility model it is achieved the utility model has the advantages that

The utility model is directly reinforced on the periphery for underpining former column, damage is not generated to former column is underpined, by trapezoidal Limit body and wedge-shaped male cone are able to bear very big load, have better bearing capacity and ductility to former elastic supports are underpined； The utility model structure is simple, easy for installation, can the production of factory's batch micro operations, and underpin former column dimension using not according to unused With the aperture connecting plate of size, so that the utility model use scope is more extensive；Present apparatus assembling and disassembling is easy, to column surface Almost without any damage, after the completion of use, the present apparatus can carry out dismounting recycling, be used for multiple times.

Detailed description of the invention

Fig. 1 is the front view of the utility model.

Fig. 2 is the top view of the utility model.

Fig. 3 is the front view of trapezoidal limit rigid body.

Fig. 4 is the A-A sectional view of trapezoidal limit rigid body.

Fig. 5 is the B-B sectional view of trapezoidal limit rigid body.

Fig. 6 is the front view of wedge-shaped male cone.

Fig. 7 is the front view of aperture connection fashioned iron.

Fig. 8 is the side view of aperture connection fashioned iron.

Fig. 9 is the front view of open pore steel plate.

Mark meaning in attached drawing, the bottom surface 1- level board；2- end plate；3- cover board；4- hang plate；5- ribbed stiffener；6- clapboard； 7- plain bar；8- aperture connecting plate；9- perforated panel；10- Screw arbor with nut at both-ends.

Specific embodiment

The utility model is further described with reference to the accompanying drawing.Following embodiment is only used for clearly illustrating this The technical solution of utility model, and cannot be used as a limitation the limitation protection scope of the utility model.

A kind of detachable steel underpinning device, including two trapezoidal limit bodies, two wedge-shaped male cones and connection position-limit mechanism, Two trapezoidal limit bodies, two wedge-shaped male cones, which pass through connection position-limit mechanism and are symmetrically fixed at, underpins former column Two sides, the trapezoidal limit body underpin between former column and have a wedge-shaped male cone.

Further, the trapezoidal limit body includes 3, two 1, two end plate 2 of bottom surface level board, cover board hang plates 4, and two A 2 upper end of the end plate is respectively fixedly connected with the rear wall of the front side wall of the cover board 3, the cover board 3, two end plates 2 Lower end is respectively fixedly connected with the rear wall of the front side wall of the bottom surface level board 1, the bottom surface level board 1, two inclinations 4 upper end of plate is respectively fixedly connected with the right side wall of the left side wall of the cover board 3, the cover board 3, two 4 left ends of hang plate and Right end is respectively fixedly connected with the side wall of the end plate 2 of two sides, and it is horizontal that two 4 lower ends of hang plate are respectively fixedly connected with the bottom surface The right side wall of the left side wall of plate 1, the bottom surface level board 1.

Further, the trapezoidal limit body includes ribbed stiffener 5, and four side walls of the ribbed stiffener 5 are laterally fixed respectively Two end plates of connection, 2 middle part, two hang plates 4 middle part.

Further, the wedge-shaped male cone includes clapboard 6, and the shape of the clapboard 6 is right-angle prismatic column, the wedge Shape plate 6 includes right angle side wall one, right angle side wall two and porch side walls, and the right angle side wall one or the right angle side wall two are against support Former column is changed, the porch side walls are matched with the inclination angle of hang plate 4 in the trapezoidal limit body.

Further, the wedge-shaped male cone includes multiple plain bars 7, the right angle side wall one or the right angle side wall two The upper multiple plain bars 7 of fixed setting, multiple plain bars 7, which are resisted against, to be underpined on former column.

Further, connection position-limit mechanism includes two aperture connecting plates 8 and eight Screw arbor with nut at both-ends 10, two connections Plate 8 is vertically symmetrically disposed in the front and back side of two trapezoidal limit bodies, and two connecting plates 8 respectively symmetrically open up Eight cooperate the screw hole one of the Screw arbor with nut at both-ends 10, open up cooperation four respectively on two end plates 2 on the trapezoidal limit body A screw hole two for being used to cooperate the screw hole one, eight Screw arbor with nut at both-ends 10 pass through two connecting plates, 8, two institutes State trapezoidal limit body.

Further, the connection position-limit mechanism includes four perforated panels 9 and four Screw arbor with nut at both-ends 10, the clapboard 6 On vertically open up the vertical screw holes one of two cooperation Screw arbor with nut at both-ends 10, open up two cooperations on the perforated panel 9 The screw hole three of the Screw arbor with nut at both-ends 10, four Screw arbor with nut at both-ends 10 are each passed through two clapboards 6, are located at same Two 10 upper and lower sides of Screw arbor with nut at both-ends on the clapboard 6 are fastened after being arranged the perforated panel 9 respectively by nut.

Screw hole one, screw hole two, the aperture of screw hole three are preferably 2~3mm bigger than the diameter of Screw arbor with nut at both-ends, Screw arbor with nut at both-ends Diameter takes 40~50mm, value 40mm, 50mm or 45mm in the present embodiment.

Further, the bottom surface level board 1, the end plate 2, the cover board 3, the hang plate 4, the ribbed stiffener 5, The clapboard 6, the plain bar 7, the aperture connecting plate 8, the perforated panel 9,10 material of the Screw arbor with nut at both-ends are Steel.

Assembling process: bottom surface horizontal steel plate 1, end steel plate 2, ribbed stiffener 5 are formed into an open hollow by being welded to connect Body, the limit of welding inclination later steel plate 4, steel deck-plate 3 form trapezoidal limit rigid body.Two trapezoidal limit rigid bodies are seated in opposite directions Original-pack two sides are underpined, aperture connection fashioned iron is mounted on trapezoidal limit rigid body two sides later, it will be trapezoidal by Screw arbor with nut at both-ends 10 Limit rigid body connects fashioned iron with aperture and connects to form entirety.Wedge-shaped male cone is placed in mounted underpinning device, and uses iron Hammer gently taps, and makes the continuous slide downward of wedge-shaped male cone, to connect fashioned iron with trapezoidal limit rigid body, aperture, underpin former cylindricality It is integral to underpin node, after the completion of underpining load, installed to drawing steel plate simultaneously at the top of wedge-shaped male cone with bottom surface horizontal steel plate bottom It is bolted, to prevent from underpining node in uninstall process, wedge-shaped male cone slides upwards.After the completion of underpining, successively unclamp Nut removes Screw arbor with nut at both-ends, aperture connection fashioned iron and trapezoidal limit rigid body, completes the dismounting of entire underpinning device.

The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art For art personnel, without deviating from the technical principle of the utility model, several improvement and deformations can also be made, these change It also should be regarded as the protection scope of the utility model into deformation.

Claims

1. A detachable steel underpinning device, characterized in that it comprises two trapezoidal limiting bodies, two wedge-shaped anchor plugs and a connection limiting mechanism, two said trapezoidal limiting bodies, two said wedge-shaped anchors The plugs are symmetrically fixed on both sides of the original underpinning column through the connection limiting mechanism, and there is a wedge-shaped anchor plug between the trapezoidal limiting body and the original underpinning column.

2. A detachable steel underpinning device according to claim 1, wherein the trapezoidal limiting body comprises a bottom horizontal plate (1), two end plates (2), a cover plate (3) , two inclined plates (4), the upper ends of the two end plates (2) are respectively fixedly connected to the front side wall of the cover plate (3) and the rear side wall of the cover plate (3), the two said The lower ends of the end plates (2) are respectively fixedly connected to the front sidewall of the bottom horizontal plate (1) and the rear sidewall of the bottom horizontal plate (1), and the upper ends of the two inclined plates (4) are respectively fixedly connected to the The left side wall of the cover plate (3), the right side wall of the cover plate (3), the left and right ends of the two inclined plates (4) are respectively fixedly connected to the side walls of the end plates (2) on both sides, The lower ends of each of the inclined plates (4) are respectively fixedly connected to the left side wall of the bottom horizontal plate (1) and the right side wall of the bottom horizontal plate (1).

3. A detachable steel underpinning device according to claim 2, wherein the trapezoidal limiting body comprises a stiffening rib (5), and the four side walls of the stiffening rib (5) are laterally respectively The middle parts of the two end plates (2) and the middle parts of the two inclined plates (4) are fixedly connected.

4. A detachable steel underpinning device according to claim 2, wherein the wedge-shaped anchor plug comprises a wedge-shaped plate (6), and the shape of the wedge-shaped plate (6) is a right-angled triangular prism, so The wedge-shaped plate (6) comprises a right-angled side wall, a right-angled side wall, and a hypotenuse side wall, the right-angle side wall 1 or the right-angle side wall 2 abuts against the original column, and the hypotenuse side wall is connected with the hypotenuse side wall. The inclination angle of the inclined plate (4) in the trapezoidal limiting body is matched.

5. A detachable steel underpinning device according to claim 4, wherein the wedge-shaped anchor plug comprises a plurality of smooth round steel bars (7), one of the right-angled side walls or the right-angled side walls A plurality of smooth round steel bars (7) are fixedly arranged on the second upper part, and the plurality of smooth round steel bars (7) abut on the original underpinning column.

6. A detachable steel underpinning device according to claim 2, characterized in that the connection limiting mechanism comprises two perforated connecting plates (8) and eight pairs of pull screws (10), two of which are The connecting plates (8) are vertically symmetrically arranged on the front and rear sides of the two trapezoidal limiting bodies, and the two connecting plates (8) are respectively symmetrically provided with eight screws that cooperate with the pair of pulling screws (10). Hole 1, the two end plates (2) on the trapezoidal limiting body are respectively provided with four screw holes for matching with the screw hole 1, and the eight pairs of pulling screws (10) pass through the two holes. One of the connecting plates (8) and two of the trapezoidal limiting bodies.

7 . A detachable steel underpinning device according to claim 4 , wherein the connection limiting mechanism comprises four perforated plates ( 9 ) and four pair-pulling screws ( 10 ). 8 . The wedge-shaped plate (6) is provided with two vertical screw holes one for matching the pair of pulling screws (10), and the opening plate (9) is provided with two vertical screw holes (10) matching the pair of pulling screws (10). The third screw holes, the four pairs of pull screws (10) respectively pass through the two wedge plates (6), and are located on the upper and lower sides of the two pairs of pull screws (10) on the same wedge plate (6). Both are sleeved with one of the perforated plates (9) and then fastened by nuts.