CN219470679U - Assembled bracket - Google Patents

Abstract

The utility model discloses an assembled bracket, which comprises a bracket unit, wherein the bracket unit comprises: one end of the chord member is provided with a chord member support and is detachably and rotatably connected with the chord member support; the chord member bracket and the supporting rod bracket are respectively and detachably arranged on the pier column through the embedded positioning assembly, the chord member support is detachably arranged on the chord member bracket, and the supporting rod bracket is positioned right below the chord member bracket; the two ends of the stay bar are respectively provided with a stay bar support and are detachably connected with the stay bar supports in a rotating mode, one stay bar support is detachably arranged on the stay bar bracket, and the other stay bar support is detachably arranged on the chord member. The assembly type bracket back field assembly integral hoisting mode is simpler and more convenient, the work efficiency is greatly improved, the detachable assembly mode is simple and efficient, the construction is more convenient, the difficulty and time of high-altitude operation of constructors are effectively reduced, the operation safety is improved, and the construction efficiency is obviously improved compared with the traditional welding type bracket and floor support steel pipe bracket.

Description

Assembled bracket

Technical Field

The utility model relates to the technical field of bridge construction, in particular to an assembled bracket.

Background

At present, temporary brackets for bridge construction mostly adopt an integral welding mode, and specific construction engineering, particularly continuous beams in a multi-limb pier mode, are required to be designed in a targeted mode so as to meet engineering characteristics. The integral welding bracket is installed by field high-altitude welding, the quality of welding seams is difficult to ensure, the safety risk of high-altitude operation is high, and the work efficiency is low. The bracket in the welding mode can only be cut and disassembled after being processed, the universality is poor, the repeated utilization rate is low, corresponding adjustment cannot be timely carried out on different bridges, the flexibility is low, and the construction cost is increased.

Disclosure of Invention

Aiming at the defects, the utility model provides the assembled bracket which can solve the problems of complex installation, low work efficiency, low universality, low flexibility and low recycling rate of the traditional welding type bracket.

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

a fabricated bracket comprising a bracket unit, the bracket unit comprising:

one end of the chord member is provided with a chord member support and is detachably and rotatably connected with the chord member support, and a bracing rod connecting plate is arranged at the downward side surface of the chord member support;

the chord member bracket is detachably mounted on the pier column through the embedded positioning assembly, and the chord member support is detachably mounted on the chord member bracket;

the brace bracket is detachably arranged on the pier column through the embedded positioning assembly and is positioned right below the chord bracket;

the two ends of the stay bar are respectively provided with a stay bar support and detachably connected with the stay bar supports in a rotating way, one stay bar support of the stay bar is detachably arranged on a stay bar bracket, and the other stay bar support is detachably arranged on a stay bar connecting plate.

Further, the assembled bracket further comprises:

the two ends of the fixing rod are respectively provided with a fixing rod support and detachably connected with the fixing rod supports in a rotating mode, the two ends of the fixing rod are respectively connected with the chord member and the supporting rod through the fixing rod supports, and at least one fixing rod support is detachably connected with the chord member or the supporting rod.

Preferably, the free end of the chord member is provided with an adjustment joint for connection with the free end of the chord member of the other carrier unit, the adjustment joint being detachably mounted at the end of the chord member and coinciding with the extension direction of the chord member.

Preferably, the chord member and the adjusting joint are respectively provided with a terminal plate at the end face of the connection, and the chord member and the terminal plate of the adjusting joint are mutually attached and detachably connected.

Preferably, the detachable connection mode is a bolt connection mode; the detachable rotary connection mode is pin shaft connection.

Preferably, the chord bracket and the stay bracket have the same structure;

the chord member bracket comprises a plurality of sheared boxes, a connecting plate and bracket boxes, wherein the sheared boxes are arranged side by side, are positioned between the connecting plate and the bracket boxes and are fixedly connected with the connecting plate and the bracket boxes respectively;

the connecting plate is connected with the chord support or the stay bar support.

Preferably, the pre-buried positioning assembly comprises a pre-buried box and positioning angle steel;

the number of the embedded boxes is consistent with that of the sheared boxes, the sheared boxes are used for being inserted and fixed, the sheared boxes are detachably connected with the embedded boxes, and the embedded boxes are embedded in the edge of the pier stud and are not exposed on the surface;

the chord member bracket and the supporting rod bracket are installed on the pier stud through the embedded locating assembly, and the chord member bracket and the embedded box installed by the supporting rod bracket are matched to be located through the locating angle steel.

Preferably, the bracket units are arranged on the pier column in a pair by pair mode;

the embedded boxes are perforated at the inward end and open at the outward end, and two embedded boxes oppositely arranged in each bracket unit are coaxially and fixedly connected with embedded steel pipes through the perforated holes;

each group of bracket units is penetrated with a pair of pull rods in embedded steel pipes of the embedded boxes which are oppositely arranged, the pair of pull rods penetrate out of the sheared boxes, and nuts are screwed at two ends of each pair of bracket units to realize the opposite pulling fixation of each group of bracket units.

Further, the bracket units are multiple, and cross links are detachably connected between the two side-by-side supporting rods of the bracket units.

Further, the plurality of bracket units are arranged, and the free ends of chords of the two bracket units which are arranged in opposite directions are connected through adjusting joints.

Compared with the prior art, the utility model has the beneficial effects that:

1. compared with the traditional field welding bracket, the assembled bracket has the advantages that the mode of assembling and integrally hoisting the assembled bracket in the rear field is simpler and more convenient, the work efficiency is greatly improved, the detachable assembling mode is simple and efficient, the high-altitude operation difficulty and time of constructors are effectively reduced, and the operation safety is improved;

2. the assembly type structure can realize nondestructive disassembly and assembly, solves the problem that the traditional welding bracket cannot be used repeatedly, and saves construction cost;

3. the multi-hole support stretching bracket is designed in a structure, inserted and pre-buried, so that the disassembly and assembly are simpler and more efficient, and the nondestructive disassembly and assembly can be realized, so that the repeated turnover use is ensured;

4. the universal design ensures that the welding bracket can adapt to different engineering conditions by changing the sizes of part of components, and is more flexible and has stronger universality than the traditional welding bracket;

5. by arranging the pre-buried positioning assembly, the auxiliary positioning ensures that the bracket is more accurate and stable to install;

6. the free replacement of the adjusting joint enables the adjusting joint to be flexibly applicable to the multi-limb piers at different intervals, and compared with the traditional welding bracket, the adjusting joint is wider in applicability.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are required to be used in the description of the embodiments will be briefly described below.

FIG. 1 is a schematic longitudinal cross-sectional view of an embodiment provided by the present utility model;

FIG. 2 is a schematic cross-sectional view of an embodiment provided by the present utility model;

FIG. 3 is a schematic view showing a partial structure of a bracket unit according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a structure in which two chords are connected by an adjustment joint according to an embodiment of the present utility model;

FIG. 5 is a schematic cross-sectional view of a chord bracket according to an embodiment of the present utility model;

FIG. 6 is a left side view of a chord bracket according to an embodiment of the present utility model;

FIG. 7 is a schematic structural diagram of a pre-buried positioning assembly according to an embodiment of the present utility model;

FIG. 8 is a schematic cross-sectional view of a pre-buried locating assembly according to an embodiment of the present utility model;

FIG. 9 is a schematic diagram of an assembly of a pre-buried locating assembly with a chord bracket and a brace bracket in an embodiment provided by the utility model.

Wherein the symbols shown in the figures are: 10-chords; 11-chord support; 12-stay bar connecting plates; 13-adjusting the joint; 14-terminal plates; 15-fixing the rod connecting plate; 20-stay bars; 21 supporting rod supports; 30-chord corbels; 31-a sheared box; 32-connecting plates; 33-bracket box; 40-stay bracket; 50-fixing rod; 51-a fixed rod support; 60-embedding a positioning assembly; 61-embedding a box; 62-embedding a steel pipe; 63-positioning angle steel; 64-pairs of tie rods; 65-nuts; 70-cross connection; 90-pier columns; 100-carrier unit.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

Referring to fig. 1 to 9, a preferred embodiment of the present utility model provides a fabricated bracket comprising a plurality of bracket units 100, wherein the plurality of bracket units 100 are disposed around the outer sidewall of the pier column 90. The bracket unit 100 comprises a chord member 10, a stay bar 20, a chord member bracket 30, a stay bar bracket 40, a fixing rod 50 and a pre-embedded positioning assembly 60, wherein the components are connected through bolts or pin shafts, so that the nondestructive assembly and disassembly of the bracket can be realized.

The chord member 10 is in a rod-shaped structure, in this exemplary embodiment, the chord member 10 is formed by welding two channel steel with the specification of [40b ], openings of the two channel steel are opposite, the two channel steel are welded into a whole at intervals by a middle partition plate with the thickness of 10mm and an upper and lower rectangular connecting plate with the thickness of 10mm, a through hole with the thickness of phi 102mm is formed at one end of the chord member 10, a reinforcing plate with the thickness of 20mm is welded on the inner side of the channel steel to strengthen the surrounding structure of the through hole, the end is connected with the chord member support 11 through the through hole, and a pin shaft penetrates through the through holes at the end parts of the chord member support 11 and the chord member 10 to realize detachable rotation connection of the two channel steel. When the chord member 10 is used, the chord member 10 is transversely arranged, a stay bar connecting plate 12 with the thickness of 20mm and a fixing bar connecting plate 15 with the thickness of 10mm are welded on the downward side face of the chord member, a plurality of through holes are respectively formed in the fixing bar connecting plate 15 of the stay bar connecting plate 12, and rib plates are arranged between the stay bar connecting plate 12 and the chord member 10 to strengthen the connection strength.

The stay bar 20 is formed by welding two channel steel with the specification of [25b ], openings of the two channel steel are opposite, the two channel steel is welded into a whole by a middle partition plate with the thickness of 10mm and an upper and lower rectangular connecting plate with the thickness of 10mm at intervals, through holes with the thickness of phi 102mm are formed at two ends of the stay bar 20, reinforcing plates with the thickness of 20mm are welded on the inner sides of the channel steel to strengthen the surrounding structure of the through holes, two end parts are connected with the stay bar support 21 through the through holes, and particularly a pin shaft penetrates through the through holes at the end parts of the stay bar support 21 and the stay bar 20 to realize detachable rotation connection of the two. The upper part of the stay bar 20 is welded with a cross connection plate and a fixed bar support 51.

The fixing rod 50 adopts a rectangular tube, the specification is 80 x 40 x 3mm, two ends are provided with phi 26mm through holes, the two ends are rotationally connected with the fixing rod support 51 through the through holes, and particularly, the fixing rod support 51 is provided with a pin shaft penetrating through the through holes of the two ends, so that the detachable rotational connection of the fixing rod 50 and the fixing rod support 51 is realized.

The chord bracket 30 is detachably mounted on the pier stud 90 by the pre-buried locating assembly 60, and the chord support 11 is detachably mounted on the chord bracket 30. The brace brackets 40 are detachably mounted on the pier stud 90 by the pre-buried locating assembly 60, and the brace brackets 40 are located directly below the chord brackets 30. In practice, the chord bracket 30 and the stay bracket 40 are fixedly mounted on the pier column 90 through the pre-buried positioning assembly 60, and can be detached from the pre-buried positioning assembly 60 after the use is completed, that is, detached from the pier column 90, so as to realize the reuse.

One strut mount 21 of the strut 20 is detachably mounted on the strut bracket 40 and the other strut mount 21 is detachably mounted on the strut web 12. The two ends of the fixing rod 50 are respectively connected with the chord 10 and the stay 20 through fixing rod supports 51, wherein one fixing rod support 51 is fixed on the stay 20 in a welding mode, and the other fixing rod support 51 is arranged on the chord 10 in a detachable connection mode.

In the present exemplary embodiment, the detachable connection is a bolt connection. Specifically, in the detachable connection manner described above, the detachable connection manner between the chord support 11 and the chord bracket 30 is a bolt connection; the detachable connection mode between the stay bar support 21 and the stay bar bracket 40 is a bolt connection; the detachable connection mode between the stay bar support 21 and the stay bar connecting plate 12 is a bolt connection; the detachable connection between the securing lever support 51 and the chord 10 is a screw connection. The bolt connection mode is safe, flexible and efficient, is easy to operate and low in cost, and can be removed after being used without damaging the components.

The chord bracket 30 and the brace bracket 40 are identical in structure. The chord bracket 30 and the stay bracket 40 are formed by welding Q345b steel 20mm thick steel plates. The chord bracket 30 comprises a plurality of sheared boxes 31, a connecting plate 32 and bracket boxes 33, wherein the sheared boxes 31 are arranged side by side, in the exemplary embodiment, the sheared boxes 31 are three transversely arranged side by side, the sheared boxes 31 in the shape of three rectangular parallels at a certain interval, and phi 50mm through holes are formed at the end parts. The sheared box 31 is positioned between the connecting plate 32 and the bracket box 33 and is fixedly connected with the connecting plate 32 and the bracket box 33 respectively in a welding mode. The connecting plate 32 is positioned at the top of the chord bracket 30 or the stay bracket 40, is provided with a plurality of through holes, and is detachably connected with the chord support 11 or the stay support 21 through bolts. The chord support 11 and the stay support 21 have the same structure and are formed by assembling and welding Q345b steel plates with the thickness of 20 mm.

In the exemplary embodiment, when the free end of the chord member 10 of the other bracket unit 100 needs to be connected, the free end of the chord member 10 is provided with an adjusting joint 13, the adjusting joint 13 is detachably mounted at the end of the chord member 10 and is consistent with the extending direction of the chord member 10, the adjusting joint 13 is used for being connected with the free end of the chord member 10 of the other bracket unit 100, and at the moment, the chord members 10 of the two bracket units 100 are connected together by arranging the adjusting joint 13 to play a role of bearing together. In the present exemplary embodiment, the fabricated bracket has a plurality of bracket units 100, and at least two bracket units 100 are mounted on different piers 90, and at least two bracket units 100 are disposed opposite to each other, and at this time, the free ends of the chords 10 of the two bracket units 100 are connected by the adjustment joint 13. Specifically, the adjusting joint 13 is formed by welding two channel steel with the specification of [40b ], openings of the two channel steel are opposite, the welding mode is similar to that of a chord member, two ends of the adjusting joint 13 are welded with rectangular end plates 14 with the thickness of 20mm, the end portions of the chord members 10 to be connected with the adjusting joint 13 are also welded with rectangular end plates 14 with the thickness of 20mm, the chord members 10 are mutually attached to the end plates 14 of the adjusting joint 13 and are detachably connected, and the detachable connection mode is bolt connection. It will be appreciated that in some embodiments, such as where two opposed carrier units 100 are positioned relatively closely together, the free ends of the chords 10 may be bolted directly to one another via the terminal plates 14.

In a preferred embodiment, the plurality of bracket units 100 is provided, wherein, the cross-links 70 are detachably connected between the supporting rods 20 of the two side-by-side bracket units 100, the cross-links 70 are formed by welding channel steel with the specification of [20 ], the X-shaped cross-links are adopted, the channel steel on two sides is provided with phi 22mm bolt holes, and the two side channel steel are connected with the supporting rods 20 through a detachable connection mode, and the detachable connection mode is preferably a bolt connection mode.

The embedded positioning assembly 60 comprises an embedded box 61 and an embedded steel pipe 62, and the embedded positioning assembly 60 is mainly used for installing auxiliary positioning of the chord bracket 30 and the brace bracket 40 and fixing of the chord bracket 30 and the brace bracket 40. The number of the embedded boxes 61 is consistent with that of the sheared boxes 31, the sheared boxes 31 and the embedded boxes 61 are detachably connected, the chord corbels 30 and the supporting rod corbels 40 are fixed on the pier column 90 through the embedded locating assemblies 60 when the combined type shear box is used, and the chord corbels 30 and the supporting rod corbels 40 can be detached from the pier column 90 after the combined type shear box is used. The embedded box 61 is embedded in the edge of the pier column and does not expose the surface. Chord member bracket 30 and brace bracket 40 are all installed on the pier stud through pre-buried locating component 60, and fix a position through location angle steel 63 between the pre-buried box 61 of cooperation chord member bracket 30 and brace bracket 40 installation, location angle steel 63 is used for realizing that the pre-buried box 61 of cooperation chord member bracket 30 and brace bracket 40 installation is unanimous on vertical and level to guarantee that brace bracket 40 is located under chord member bracket 30, and guarantee the unanimity of relative brace bracket 40 and chord member bracket 30. Specifically, the positioning angle steel 63 is a light angle steel and is divided into a vertical angle steel and a horizontal angle steel, the beam ends of the single angle steel are connected with the lap joint angle steel on the embedded box 61 through bolts, and the connecting holes are provided with double holes and three holes to ensure that the elevation of the two opposite embedded boxes 61 is kept the same, and the plane positions are symmetrically arranged on the two sides of the pier body; the accurate control is ensured to be within 5mm through measurement assistance, the situation that the shear key is difficult to install due to dislocation of the pull rod 64 in subsequent construction is avoided, and the shearing influence on the service life of the pull rod 64 due to dislocation of the pull rod is prevented.

The embedded locating component is provided with three-hole position shear keys, the hole position ruler diameters are more than 50mm, the three holes are symmetrically arranged at the center positions of the shear keys, and more stress rods are used for widening the stress range of components, expanding the use scene, keeping the tension of conventional phi 32mm finish rolling steel about 22 t/root, and providing larger stress space and safety coefficient for three opposite pull rods with opposite pull force 66t than the conventional 2 opposite pull working conditions.

Further, in the exemplary embodiment, a plurality of bracket units 100 are disposed on abutment 90 in pairs of bracket units 100. The embedded boxes 61 are opened towards the inner end and open towards the outer end and can be matched and inserted into the sheared boxes 31, two embedded boxes 61 which are oppositely arranged in each group of bracket units 100 are fixedly connected with embedded steel pipes 62 coaxially through the openings, and the embedded steel pipes 62 can play a role in positioning to ensure that the two embedded boxes 61 are oppositely arranged. Each set of bracket units 100 is penetrated with a counter pull rod 64 in the embedded steel pipes 62 of the embedded boxes 61 which are oppositely arranged, the counter pull rod 64 penetrates out of the sheared boxes 31, and nuts 65 are screwed at two ends of the counter pull rod 64 so as to realize counter pull fixation of each set of bracket units 100. The opposite pull rod 64 mainly plays roles of opposite pulling and fixing, on one hand, it can pull two opposite bracket units 100 arranged on two sides of the pier stud 90 to realize the stable and firm installation of the bracket units 100, on the other hand, it is screwed with the nuts 65 at the end parts, so that the sheared box 31 is pressed in the embedded box 61 through the pressing action of the nuts 65, thereby realizing the stable, firm and detachable installation of the chord bracket 30 and the supporting rod bracket 40, namely realizing the stable, firm and detachable installation of the bracket units 100.

The pre-buried boxes 61 are formed by assembling and welding 3mm steel plates and equal limb angle steels 40 x 3mm, the pre-buried boxes 61 are cuboid boxes, phi 60mm through holes are formed in one end of each box, one end of each box is open, three pre-buried boxes 61 in the bracket unit 100 are arranged at certain intervals and welded into a whole through transverse angle steels, bolt holes are formed in transverse angle steels at the open ends, the open ends are temporarily closed through box end closure plates, and angle steels with vertical bolt holes are welded on the sides of the whole boxes; the positioning angle steels 63 are all welded into a ladder type by equal-limb angle steels 40 mm and 3mm, and the two ends of the upright post are provided with bolt holes; the embedded steel pipe 62 adopts phi 58 x 2.5mm common steel pipes. The bracket units 100 on two sides of the pier column 90 are fixed by adopting a counter-pulling rod 64 with phi 32mm, the counter-pulling rod 64 is made of finish-rolled screw steel, the counter-pulling rod 64 passes through the sheared boxes 31, the embedded boxes 61 and the embedded steel pipes 62 of the one-side chord bracket 30 and the brace bracket 40, and passes out of the sheared boxes 4 of the other-side embedded boxes 61, the chord bracket 30 and the brace bracket 40, and the two ends are fastened by nuts to realize counter-pulling fixation. It will be appreciated that in some implementations, even though the support need not be achieved by the bracket units at one side or location of the pier stud, the opposite side bracket units 100 may be secured to the side by providing the chord brackets 30, brace brackets 40 and pre-buried locating members 60 in order to accommodate the opposite side bracket units' counter-pulling, and that the side need not be provided with chords 10 and braces 20, respectively.

In the preferred embodiment, the chord brackets 30, the brace brackets 40, the chord supports 11, the brace supports 21, the fixing bar supports 51, and the pre-buried boxes 61 are all preferably universal and fixed in size. The overall dimensions of the bracket unit 100 are changed by matching the chords 10, braces 20, adjustment joints 13 and fixing bars 50 of different lengths to accommodate the differences of different projects, so that the flexibility is greatly improved. Wherein, the length of the adjusting section 13 can be changed to match different pier intervals, the length of the positioning angle steel 63 depends on the height difference of the chord bracket 30 and the brace bracket 40 of the bracket unit 100 with different specifications, and the length of the embedded steel pipe 62 depends on the thickness or the width dimension of the pier column to be constructed. The temporary connecting member who sets up during implementation has the temporary mounting pull rod for when bracket hoist and mount was installed, the angle between the fixed member was provided with adjustable bolt on the temporary pull rod, and bigger error adjustment degree when being convenient for install guarantees the installation accuracy between member and the bolt.

In order to better explain or illustrate the present utility model, the following is a specific exemplary embodiment of an implementation of the present utility model.

S1, firstly, installing the embedded locating assembly 60.

S11, installing the embedded boxes 61 (two groups) and the embedded steel pipes 62 corresponding to the supporting rod brackets 40 according to the position sizes of the embedded boxes 61 of the drawing, embedding the embedded boxes 61 in the pier column without exposing the surface, enabling the embedded steel pipes 62 to extend into through holes at the end parts of the embedded boxes 61 at the two sides of the pier column for a small distance and be welded together on site, positioning the embedded boxes 61 according to a site measuring instrument, and controlling the position error within a range of 5 mm. The embedded boxes 61 corresponding to the two opposite supporting rod brackets 40 of each bracket unit 100 are positioned relatively through the embedded steel pipes 62, the embedded steel pipes 62 extend into the through holes at the end parts of the embedded boxes 61 at the two sides of the pier column for a small distance and are welded together on site, and the internal tightness of the embedded boxes 61 and the level of the embedded boxes 61 are ensured on site.

S12, surrounding steel bars of the embedded box 61 need to bypass, bending steel bars are used for replacing straight steel bars, the surrounding of the embedded box 61 is in the range of 50 centimeters, and a surface anti-cracking steel bar net is arranged.

S13, installing vertical 63 positioning angle steel after the installation and fixation of the embedded boxes 61 corresponding to the support rod brackets 40 are completed, enabling two upright posts of the positioning angle steel 63 to be attached to vertical angle steel on two sides of the integral embedded box and fastening bolts, and enabling the vertical positioning angle steel 63 to be used for guaranteeing that the embedded boxes 61 corresponding to the chord bracket 30 and the support rod brackets 40 are consistent in the vertical direction.

S14, after concrete is poured to a certain height, installing the embedded boxes 61 corresponding to the chord corbels 30 according to the hole positions of the vertical positioning angle steels 63, and installing the embedded boxes 61 corresponding to the brace corbels 40.

And S15, after the strength of the pier stud coagulation degree meets the requirement, chiseling off the concrete on the surface of the embedded box 61, and dismantling the box end socket plate to realize that the embedded box 61 is opened towards one end.

S2, mounting the chord bracket 30 and the stay bracket 40.

S21, attaching the bottom plate of the chord support 11 to the connecting plate 32 of the chord support 30 to form a hole-aligning tightening bolt serving as an upper support, attaching the bottom plate of the brace support 21 to the connecting plate 32 of the brace support 40 to form a hole-aligning tightening bolt serving as a lower support, hoisting the assembly of the chord support 30 and the brace support 40 and the chord support 11 and the brace support 21 to the position where the pier column is to be installed together, inserting the sheared boxes 31 of the chord support 30 and the brace support 40 into corresponding embedded boxes 61, penetrating through holes at the end parts of the sheared boxes 31 into the counter-pulling rods 64 which are finish-rolled screw steels, fixing the counter-pulling rods 64 through screw nuts 65, and tensioning the counter-pulling rods 64 according to design tension.

S3, assembling the back field triangular bracket.

S31, measuring the installed positions of the supports according to the field measuring instrument.

S32, primarily assembling the triangular bracket (comprising the chord member 10, the stay bar 20, the fixed bar support 51, the fixed bar 50 and the like), attaching the bottom plate of the stay bar support 21 to the butt hole of the lower connecting plate of the chord member 11, tightening bolts, and connecting the stay bar 20 with the stay bar support 21 through a pin shaft; the bottom plate of the fixed rod support 51 is attached to the bolt on the hole of the lower fixed rod connecting plate of the chord member 10, and two ends of the fixed rod 50 are respectively connected with the fixed rod support 51 connected with the lower fixed rod support 51 of the chord member 10 and the fixed rod support 51 on the chord member 20 by pin shafts, so that a triangular bracket with a triangular structure is formed.

S33, adjusting the position and the angle of the triangular bracket brace 20 according to the positions of the chord bracket 30 and the brace bracket 40, and ensuring accurate installation.

S34, screwing the bolts of the fixed rod support 51 to fix the adjusted triangular bracket.

And S35, integrally hoisting the triangular bracket to the positions of the installed chord support 11 and the stay support 21 by using pin shafts so as to complete the installation of one bracket unit 100.

And S36, after all the bracket units 100 are installed, hoisting the corresponding crossties 70 by the bracket units 100 which are arranged in pairs side by side to connect the two bracket units 100.

S37, for the bracket unit with the adjusting joint 13, the two bracket units 100 and the middle adjusting joint 13 can be integrally hoisted after being assembled in a back field, and the adjusting joint 13 can be installed after the two bracket units 100 are hoisted.

S38, checking and accepting.

S4, dismantling.

S41, after the tooling on the upper part of the bracket is removed layer by layer, the bolting of the chord support 11 and the chord bracket 30 is removed, the bolting of the stay support 21 and the stay bracket 40 is removed, and the chord 10, the stay 20, the fixed rod support 51, the fixed rod 50 and the like of the bracket are integrally hoisted and removed.

S42, the chord 10, the stay 20, the fixing bar support 51, the fixing bar 50, etc. of the back field dismounting bracket.

S43, the opposite pulling of the pull rod 64 is released, and the chord bracket 30 and the stay bracket 40 are hung and detached.

Compared with the traditional field welding bracket, the assembled bracket has the advantages that the mode of assembling and integrally hoisting the assembled bracket in the rear field is simpler and more convenient, the work efficiency is greatly improved, the detachable assembling mode is simple and efficient, the high-altitude operation difficulty and time of constructors are effectively reduced, and the operation safety is improved; by arranging the pre-buried positioning assembly, the auxiliary positioning ensures that the bracket is more accurate and stable to install; the multi-hole support stretching bracket is designed in a structure, inserted and pre-buried, so that the disassembly and assembly are simpler and more efficient, and the nondestructive disassembly and assembly can be realized, so that the repeated turnover use is ensured; the universal design ensures that the welding bracket can adapt to different engineering conditions by changing the sizes of part of components, and is more flexible and has stronger universality than the traditional welding bracket; the assembly type structure can realize nondestructive disassembly and assembly, solves the problem that the traditional welding bracket cannot be used repeatedly, and saves construction cost; the free replacement of the adjusting joint enables the adjusting joint to be flexibly applicable to the multi-limb piers at different intervals, and compared with the traditional welding bracket, the adjusting joint is wider in applicability.

Aiming at the problems of complex installation, low work efficiency, poor universality, poor flexibility and low recycling rate of the bracket in the traditional welding mode, the utility model realizes the nondestructive disassembly and assembly of the bracket by arranging an assembly bracket; by adopting standardized and modularized design of bracket components, the bracket realizes the component universality, can be repeatedly used in a turnover way, and enhances the universality and the recycling rate; the bracket is connected by the flange and the pin shaft, so that the mounting and dismounting efficiency can be improved; for the bracket among the buttress piers, the flange connection adjusting joints are added, and the universality and the flexibility of the bracket for different continuous beam construction are improved by changing the adjusting joints with different lengths to adapt to different pier distances.

The bracket is characterized in that bracket installation space is reserved through the embedded empty box, horizontal traction force of the chord member is provided for the pull rod through tensioning, and the component connection is a light bracket which is connected through selectable bolts or pin shafts. The pre-buried structure is positioned by adopting preset angle steel to ensure the precision of the reserved space, so as to meet the field installation requirement; the main rod pieces of the bracket are chord members and stay bars, and are integrally hoisted after being assembled and connected in advance before being installed, so that the problems of traditional field welding and weld detection are solved; the connecting angle steel structure provided with the bracket support further ensures the overall stability. The construction of the integral bracket is convenient, and compared with the traditional welding type bracket and the floor support steel pipe bracket, the construction efficiency is obviously improved. The construction length of the bracket can meet the construction of No. 0 blocks with the length of more than 18m, and the applicability is strong.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be included in the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (10)

1. A fabricated bracket characterized by comprising a bracket unit (100) comprising:

a chord member (10), one end of which is provided with a chord member support (11) and is detachably and rotatably connected with the chord member support (11), and a support member connecting plate (12) is arranged at the downward side surface of the chord member support (11);

the chord member bracket (30) is detachably mounted on the pier stud through the embedded positioning assembly (60), and the chord member support (11) is detachably mounted on the chord member bracket (30);

the stay bar bracket (40) is detachably arranged on the pier stud through the pre-buried positioning assembly (60), and the stay bar bracket (40) is positioned right below the chord member bracket (30);

the support rod (20) is provided with support rod supports (21) at two ends respectively and is detachably connected with the support rod supports (21) in a rotating mode, one support rod support (21) of the support rod (20) is detachably arranged on a support rod bracket (40), and the other support rod support (21) is detachably arranged on a support rod connecting plate (12).

2. The fabricated bracket of claim 1, further comprising:

the two ends of the fixing rod (50) are respectively provided with a fixing rod support (51) and are detachably connected with the fixing rod supports (51) in a rotating mode, the two ends of the fixing rod (50) are respectively connected with the chord member (10) and the supporting rod (20) through the fixing rod supports (51), and at least one fixing rod support (51) is detachably connected with the chord member (10) or the supporting rod (20).

3. The fabricated bracket of claim 1, wherein,

the free end of the chord member (10) is provided with an adjusting joint (13) for connecting with the free end of the chord member (10) of the other bracket unit (100), and the adjusting joint (13) is detachably arranged at the end of the chord member (10) and is consistent with the extending direction of the chord member (10).

4. The fabricated bracket of claim 3, wherein,

the chord member (10) and the adjusting joint (13) are respectively provided with a terminal plate (14) at the end surface of connection, and the chord member (10) and the terminal plate (14) of the adjusting joint (13) are mutually attached and detachably connected.

5. The fabricated bracket according to any one of claims 1 to 4, wherein,

the detachable connection mode is bolt connection; the detachable rotary connection mode is pin shaft connection.

6. The fabricated bracket of claim 1, wherein,

the chord member bracket (30) and the supporting rod bracket (40) have the same structure;

the chord member bracket (30) comprises a plurality of sheared boxes (31), connecting plates (32) and bracket boxes (33), wherein the sheared boxes (31) are arranged side by side, and the sheared boxes (31) are positioned between the connecting plates (32) and the bracket boxes (33) and are fixedly connected with the connecting plates (32) and the bracket boxes (33) respectively;

the connecting plate (32) is connected with the chord support (11) or the stay support (21).

7. The fabricated bracket of claim 6, wherein,

the embedded positioning assembly (60) comprises an embedded box (61) and positioning angle steel (63);

the number of the embedded boxes (61) is consistent with that of the sheared boxes (31) and the embedded boxes are used for inserting and fixing the sheared boxes (31), the sheared boxes (31) are detachably connected with the embedded boxes (61), and the embedded boxes (61) are embedded in the edges of pier columns and are not exposed on the surfaces;

the chord member bracket (30) and the supporting rod bracket (40) are installed on the pier column through the embedded locating assembly (60), and are matched with the embedded boxes (61) installed between the chord member bracket (30) and the supporting rod bracket (40) to be located through the locating angle steel (63).

8. The fabricated bracket of claim 7, wherein,

the bracket units (100) are arranged on the pier columns in a pairwise manner in opposite directions;

the embedded boxes (61) are provided with holes towards the inner end and open towards the outer end, and two embedded boxes (61) which are oppositely arranged in each bracket unit (100) are coaxially and fixedly connected with embedded steel pipes (62) through the holes;

each group of bracket units (100) is penetrated with a counter pull rod (64) in an embedded steel pipe (62) of an embedded box (61) which is oppositely arranged, the counter pull rod (64) penetrates out of the sheared box (31), and nuts (65) are screwed at two ends of the counter pull rod so as to realize counter pull fixation of each group of bracket units (100).

9. The fabricated bracket of claim 1, wherein,

the plurality of bracket units (100) are arranged in pairs, and transverse links (70) are detachably connected between the support rods (20) of the bracket units (100) in parallel.

10. The fabricated bracket of claim 1, wherein,

the plurality of bracket units (100) are connected with the free ends of chords (10) of the two bracket units (100) which are arranged in opposite directions through adjusting joints (13).