CN212714581U - Multipurpose assembled cantilever structure - Google Patents

Multipurpose assembled cantilever structure Download PDF

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Publication number
CN212714581U
CN212714581U CN202021255621.1U CN202021255621U CN212714581U CN 212714581 U CN212714581 U CN 212714581U CN 202021255621 U CN202021255621 U CN 202021255621U CN 212714581 U CN212714581 U CN 212714581U
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chord
head
support
supporting
multipurpose
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CN202021255621.1U
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李玲玉
丁志刚
陈松洲
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Road and Bridge International Co Ltd
China Communication South Road and Bridge Co Ltd
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Road and Bridge International Co Ltd
China Communication South Road and Bridge Co Ltd
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Abstract

The utility model relates to a multipurpose assembled cantilever structure belongs to bridge construction field. Comprises a supporting structure and a distribution beam; the supporting structure comprises an upper chord, a lower chord, a vertical rod and a diagonal draw bar, wherein the lower chord is connected below the upper chord through the vertical rod and the diagonal draw bar so as to form a frame body in a matched manner; the tail end head of the upper chord is provided with a pin joint, the head end head is provided with a groove which can be inserted into the pin joint in a matching way, an upper pin shaft hole for passing through a pin shaft is correspondingly arranged at the head end head, and the head end head of the lower chord is provided with a lower pin shaft hole; along the longitudinal direction of the concrete body, two parallel support structures arranged in parallel are connected into a whole through a plurality of transverse connections, and two ends of each transverse connection are correspondingly arranged on the vertical rods of the two support structures; several distributing beams are erected on the tops of the upper chords of the two supporting structures. The support structure can be freely adjusted according to the size of the poured concrete and can also be suitable for concrete pouring construction without a pull rod on a side wall.

Description

Multipurpose assembled cantilever structure
Technical Field
The utility model belongs to bridge construction field, concretely relates to multipurpose assembled cantilever structure.
Background
The cantilever bent cap is constructed in a cast-in-place mode, and the construction quality and the construction process are influenced by the support system. The conventional support system applied at present is complex in structure and poor in adaptability, can not be freely adjusted according to the size of the poured concrete, and is not suitable for concrete pouring construction without a pull rod on a side wall.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a multipurpose assembly cantilever support structure to solve the deficiencies of the prior art.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a multipurpose fabricated outrigger structure comprising a support structure and a distribution beam disposed above the support structure; the supporting structure comprises an upper chord, a lower chord, a vertical rod and a diagonal draw bar, wherein the lower chord is connected below the upper chord through the vertical rod and the diagonal draw bar so as to form a frame body in a matched manner; the tail end head of the upper chord is provided with a pin joint, the head end head is provided with a groove which can be inserted into the pin joint in a matched mode, an upper pin shaft hole used for penetrating through a pin shaft is correspondingly arranged at the head end head, and the head end head of the lower chord is provided with a lower pin shaft hole.
Along the longitudinal direction of the concrete body, two parallel support structures arranged in parallel are connected into a whole through a plurality of transverse connections, and two ends of each transverse connection are correspondingly arranged on the vertical rods of the two support structures; several distributing beams are erected on the tops of the upper chords of the two supporting structures.
Furthermore, along the transverse direction of the concrete body, two to three support structures are sequentially connected end to end; between adjacent supporting structures, a pin joint at the tail end of the previous upper chord is inserted into a groove at the head end of the next upper chord and is connected and locked through a pin shaft penetrating through a pin shaft hole at the head end; and the supporting structure is provided with a connector at a position corresponding to the adjacent lower chord, and the latter lower chord is connected and locked with the adjacent front connector through a pin shaft penetrating through the lower pin shaft hole at the head end.
Furthermore, the supporting structures connected in sequence along the transverse direction of the concrete body are matched to form a triangular supporting structure.
Furthermore, the head end of the upper chord and the head end of the lower chord which are arranged in the head position and used as the first section of the supporting structure are correspondingly connected with the embedded part or the adjustable bottom support.
Furthermore, when the upper chord and the lower chord are connected with the adjustable bottom support, the outer side surface of the upper chord is provided with an anchoring ear plate.
Furthermore, the upper chord member mainly comprises channel steel and square steel pipes, and the two channel steel are arranged in a back direction and are connected into a double-groove steel structure through at least two square steel pipes arranged at intervals; the lower chord is a square steel tube.
Further, the transverse connection is a steel pipe which is connected to the vertical rod through a fastener.
Further, the head end of the upper chord and the head end of the lower chord in the support structure are flush in the vertical direction.
Furthermore, a plurality of inclined struts are arranged in a frame body which is enclosed by the upper chord, the lower chord, the upright and the inclined pull rods.
The beneficial effects of the utility model reside in that:
(1) the utility model discloses simple structure, the atress is clear and definite, and the support mounting, demolish the convenience.
(2) Each component is simple, convenient and quick to process, can realize factory machining production, and improves the construction efficiency.
(3) Can be scientifically combined according to the structure size and the construction load, and the value of the rod piece is exerted to the maximum extent.
(4) The method has wide application, and can be simultaneously used for side wall pull-rod-free concrete pouring construction and thin-wall pier long cantilever capping beam concrete pouring construction.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.
Drawings
For the purposes of promoting a better understanding of the objects, features and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic view of a multipurpose sectional cantilever support;
FIG. 2 is a schematic view of three support structures in a disassembled state;
FIG. 3 is a top view of the upper chord;
FIG. 4 is an elevation view of the fabricated cantilever support structure applied to concrete pouring construction of a thin-wall pier long cantilever capping beam;
FIG. 5 is a plan view of FIG. 4;
fig. 6 is a schematic diagram of the application of the fabricated cantilever support structure in the side wall concrete pull-rod-free concrete pouring construction.
Reference numerals:
the device comprises a supporting structure 1, a distribution beam 2, pier columns 3, side walls 4, transverse connections 5, embedded parts 6, an adjustable bottom support 7, anchoring ear plates 8 and sleeves 9;
in the support structure: the device comprises an upper chord 101, a lower chord 102, a vertical rod 103, a diagonal draw bar 104, a pin joint 105, an upper pin shaft hole 106, a lower pin shaft hole 107, a connector 108 and an inclined strut 109;
in the upper chord: channel 1011, square steel pipe 1012.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Referring to fig. 1, a multipurpose assembly cantilever support structure includes a support structure 1 and a distribution beam 2 disposed above the support structure 1; the supporting structure 1 comprises an upper chord 101, a lower chord 102, an upright rod 103 and a diagonal draw bar 104, wherein the lower chord 102 is connected below the upper chord through the upright rod 103 and the diagonal draw bar 104 to form a frame body in a matching way; the tail end of the upper chord is provided with a pin joint 105, the head end is provided with a groove which can be inserted into the pin joint 105 in a matching way, the head end is correspondingly provided with an upper pin shaft hole 106 for passing through a pin shaft, and the head end of the lower chord 102 is provided with a lower pin shaft hole 107.
Along the longitudinal direction of a concrete body (the concrete body can be a pier stud 3 or a side wall 4), two parallel support structures 1 which are arranged in parallel are connected into a whole through a plurality of transverse connections 5, and two ends of each transverse connection 5 are correspondingly arranged on vertical rods 103 of the two support structures 1; several distribution beam mounts 2 are provided on top of the upper chords 101 of the two support structures 1.
As shown in fig. 2, in the fabricated cantilever support structure, two to three support structures 1 are sequentially connected end to end along the transverse direction of the concrete body; between adjacent supporting structures, a pin joint 105 at the tail end of a previous upper chord 101 is inserted into a groove at the head end of an adjacent next upper chord and is connected and locked through a pin shaft penetrating through an upper pin shaft hole 106 at the head end; the supporting structure is provided with a connector 108 at a position corresponding to the adjacent lower chord 102, and the next lower chord 102 is connected and locked with the adjacent previous connector 108 through a pin shaft penetrating through the head end lower pin shaft hole 107. In order to ensure the reliability and stability of connection, the size of the upright rods 103 in the supporting structures connected in sequence is gradually reduced along the transverse direction of the concrete body, and the supporting structures connected with each other are matched to form a triangular supporting structure.
In the sequentially connected support structures, the head ends of the upper chord 101 and the lower chord 102 which are arranged in the support structure as the first section are correspondingly connected with the embedded part 6 or the adjustable bottom support 7. When the assembled cantilever support structure is applied to concrete pouring construction of a long cantilever capping beam of a thin-wall pier, the embedded part 6 is preset in the pier stud 3, and the head ends of the upper chord 101 and the lower chord 102 in the support structure of the first section are connected with the embedded part 6, so that the assembled cantilever support structure is fixedly installed. When the assembly type cantilever support structure is applied to the side wall concrete tie-rod-free concrete pouring construction, the adjustable bottom support 7 is preset in the side wall 4, and the head ends of the upper chord 101 and the lower chord 102 in the supporting structure of the first section are connected with the adjustable bottom support 7 so as to realize the installation and fixation of the assembly type cantilever support structure.
When the upper chord 101 and the lower chord 102 are connected with the adjustable bottom support 7, namely the assembled cantilever support structure is applied to the side wall concrete tie-rod-free concrete pouring construction, the outer side surface of the upper chord 101 is provided with the anchoring ear plate 8. The anchoring ear plates 8 can be connected with the bar anchors prefabricated in the side wall concrete to enhance the supporting effect.
As shown in fig. 3, the upper chord 101 in the fabricated cantilever support structure is a double-channel steel structure, which mainly comprises channel steel 1011 and square steel pipe 1012, wherein the two channel steels 1011 are arranged in a back-to-back manner and are connected into the double-channel steel structure through the square steel pipes 1012 arranged at least two intervals. And the lower chord 102 is directly made of square steel pipe.
In the assembled cantilever support structure, the transverse connection 5 is a steel pipe, and is connected to the vertical rod 103 through a fastener.
For the convenience of assembly, in the assembled cantilever support structure, the head ends of the upper chord 101 and the lower chord 102 in the support structure are flush in the vertical direction.
Preferably, a plurality of inclined struts 109 are arranged in the frame body enclosed by the upper chord 101, the lower chord 102, the vertical rod 103 and the inclined pull rod 104, so as to enhance the strength and stability of the whole supporting structure.
Taking the application of the fabricated cantilever support structure in concrete pouring construction of the thin-wall pier long cantilever capping beam as an example, as shown in fig. 4 and 5:
in this embodiment, there are two sets of assembled cantilever support, correspond the setting in the left and right sides of pier stud. Each side contains six supporting structures 1 totally, and every three sections of supporting structures 1 are linked together and become a set of, and first section (root/head), second section (middle part), third section (outer end) can be according to the concreting load condition, length independent assortment. The adjacent supporting structures 1 are connected by pins, and speed blocks are connected, so that the assembly and disassembly are convenient.
In the three-section supporting structure 1, the upper chord is a double-groove steel structure consisting of the channel steel 1011 and the square steel pipe 1012, and in order to improve the integrity of the upper chord, a prescription steel pipe 1012 is arranged between the two channel steels 1011 for connection. A thick steel plate is additionally attached to the upper chord at the position where the upper pin shaft hole 106 is formed, machining is adopted to form a hole, and the pin joint 105 is of a fine machining solid steel structure.
The construction process of the support structure in the embodiment comprises the following steps:
(1) and determining the size of the structure of the bent cap support and the specification and the number of the embedded parts according to the size and the load of the bent cap, and considering the self weight of the structure borne by the support, the concrete self weight of the bent cap, the construction load and the wind load.
(2) Before field installation, upper and lower embedded parts are embedded in the pier stud, each supporting structure is pre-assembled in a processing plant, and then the supporting structures are assembled and installed on the field through pin joint.
(3) The transverse connection is installed, and the bolts of the fasteners are fastened to ensure the balanced stress of the rod pieces.
(4) And installing a transverse bearing beam, a distribution beam and a template system.
It should be noted that: in this embodiment, the support arrangement on one side of the pier column is calculated and arranged according to the pier column width, the poured wall body width and the combined structure stress, and the arrangement of two rows (i.e. in the longitudinal direction of the drawing) is only used as an indication, and three rows, four rows or even more can be adopted to meet the structural stress requirement.
According to the structure size and the load size, the support structure connected in the support structure has various combination forms, and the specific combination mode is as follows:
long cantilever: a first section + a second section + a third section; the cantilever has the characteristics of large length and suitability for cantilever supports with large cantilever size and more concrete poured in a single time or formwork supports with high concrete poured in a single time on the wall body.
Cantilever in the heavy load: a first section + a second section; the concrete pouring cantilever support has the characteristics of large bearing capacity, and is suitable for medium cantilevers and concrete pouring cantilever supports with large pouring loads.
Light-load middle cantilever: second section + third section; the method is suitable for pouring concrete of medium-height cantilevers and concrete of walls with general heights.
Light-load short cantilever: a first section.
Medium-load short cantilever: and a second section.
Heavy-duty short cantilever: the first section is suitable for pouring short cantilevers and large-size concrete cantilevers.
The fabricated cantilever support structure is applied to the side wall concrete pull-rod-free concrete pouring construction as an example, and is shown in fig. 6:
the main difference between this embodiment and the previous embodiment is that, when the side wall support frame is used, ground anchor bars are needed to be implanted into the ground concrete to limit the horizontal position of the support structure and prevent the concrete from moving laterally during pouring. And the outside of the first section of upper chord is provided with an anchoring ear plate for supporting the side wall, the inside of the first section of upper chord is provided with a sleeve 9 matched with the adjustable bottom support, and the sleeve and the upper chord are welded into a whole, so that the integrity of the upper chord can be improved.
The construction process flow of the support structure in the embodiment is as follows:
support structure calculation layout → support structure pre-assembly → side wall reinforcement → template installation → installation of assembled support structure → installation of transverse connection → sealing of adjusting position, fastening of root anchor bar → concrete pouring
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.

Claims (9)

1. A multipurpose fabricated outrigger structure comprising a support structure and a distribution beam disposed above the support structure; the method is characterized in that: the supporting structure comprises an upper chord, a lower chord, a vertical rod and a diagonal draw bar, wherein the lower chord is connected below the upper chord through the vertical rod and the diagonal draw bar so as to form a frame body in a matched manner; the tail end head of the upper chord is provided with a pin joint, the head end head is provided with a groove which can be inserted into the pin joint in a matching way, an upper pin shaft hole for passing through a pin shaft is correspondingly arranged at the head end head, and the head end head of the lower chord is provided with a lower pin shaft hole;
along the longitudinal direction of the concrete body, two parallel support structures arranged in parallel are connected into a whole through a plurality of transverse connections, and two ends of each transverse connection are correspondingly arranged on the vertical rods of the two support structures; several distributing beams are erected on the tops of the upper chords of the two supporting structures.
2. The multipurpose fabricated boom support structure of claim 1, wherein: along the transverse direction of the concrete body, two to three supporting structures are sequentially connected end to end; between adjacent supporting structures, a pin joint at the tail end of the previous upper chord is inserted into a groove at the head end of the next upper chord and is connected and locked through a pin shaft penetrating through a pin shaft hole at the head end; and the supporting structure is provided with a connector at a position corresponding to the adjacent lower chord, and the latter lower chord is connected and locked with the adjacent front connector through a pin shaft penetrating through the lower pin shaft hole at the head end.
3. The multipurpose fabricated boom support structure of claim 2, wherein: and supporting structures connected in sequence along the transverse direction of the concrete body are matched to form a triangular supporting structure.
4. The multipurpose fabricated boom support structure of claim 3, wherein: the head end of the upper chord and the head end of the lower chord which are arranged in the head position and used as the first section of the supporting structure are correspondingly connected with the embedded part or the adjustable bottom support.
5. The multipurpose fabricated boom support structure of claim 4, wherein: when the upper chord and the lower chord are connected with the adjustable bottom support, the outer side surface of the upper chord is provided with an anchoring ear plate.
6. The multipurpose fabricated outrigger structure of any one of claims 1-5, wherein: the upper chord member mainly comprises channel steel and square steel pipes, wherein the two channel steel are arranged in a back direction and are connected into a double-groove steel structure through at least two square steel pipes arranged at intervals; the lower chord is also a double-groove steel structure square steel pipe.
7. The multipurpose fabricated boom support structure of claim 1, wherein: the transverse connection is a steel pipe which is connected to the vertical rod through a fastener.
8. The multipurpose fabricated boom support structure of claim 1, wherein: the head ends of the upper chord and the lower chord in the supporting structure are flush in the vertical direction.
9. The multipurpose fabricated boom support structure of claim 1, wherein: a plurality of inclined struts are arranged in a frame body which is enclosed by the upper chord, the lower chord, the upright stanchion and the inclined pull rod.
CN202021255621.1U 2020-06-30 2020-06-30 Multipurpose assembled cantilever structure Active CN212714581U (en)

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CN202021255621.1U CN212714581U (en) 2020-06-30 2020-06-30 Multipurpose assembled cantilever structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021255621.1U CN212714581U (en) 2020-06-30 2020-06-30 Multipurpose assembled cantilever structure

Publications (1)

Publication Number Publication Date
CN212714581U true CN212714581U (en) 2021-03-16

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CN (1) CN212714581U (en)

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