CN214143258U

CN214143258U - Bridge bent cap segmentation is prefabricated assembles fixed knot and constructs

Info

Publication number: CN214143258U
Application number: CN202022882003.6U
Authority: CN
Inventors: 王龙; 王吉祥; 陈扩晋; 贾荣炜; 艾宇航
Original assignee: China Construction Civil Engineering Co Ltd
Current assignee: China Construction Civil Engineering Co Ltd
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-09-07
Anticipated expiration: 2030-12-04

Abstract

The utility model discloses a fixed knot constructs is assembled in bridge bent cap segmentation prefabrication, including the support column, connect platform and bent cap, connect the platform middle part and seted up the slip casting groove, connect the first butt joint reinforcing bar of platform both sides fixedly connected with, seted up the slip casting hole on the bent cap, two side fixedly connected with second butt joint reinforcing bars of bent cap, second butt joint reinforcing bar and the mutual staggered distribution of first butt joint reinforcing bar, first butt joint reinforcing bar runs through with the intersection of second butt joint reinforcing bar and is provided with two connecting bolt, connect the platform and pass through connecting bolt and fastening nut and bent cap fixed connection. Through setting up first butt joint reinforcing bar, second butt joint reinforcing bar and two connecting bolt, can make between bent cap and the connection platform realize the location through the crisscross butt joint of first butt joint reinforcing bar and second butt joint reinforcing bar, two connecting bolt of rethread lock first butt joint reinforcing bar and second butt joint reinforcing bar realize being connected together, first butt joint reinforcing bar is detained with the second butt joint reinforcing bar and is in the same place, can improve joint strength, the quick installation of being convenient for.

Description

Bridge bent cap segmentation is prefabricated assembles fixed knot and constructs

Technical Field

The utility model belongs to the technical field of the bridge fixed knot constructs, in particular to fixed knot constructs is assembled in bridge bent cap segmentation prefabrication.

Background

The bridge assembly type construction is a mode which is widely applied at present. In particular urban bridge implementations. Because the width of the urban bridge is wide, the form of the double buttresses and the capping beam is common. Leading to the fact that the capping beam is wide. The longer capping beam has heavier weight and larger volume, and generally exceeds more than 250T. The requirement on equipment is high and the safety risk is high when the device is required to be installed by lifting once. Therefore, the installation is generally carried out in a segmented mode, and the risk is reduced. However, the prior splicing and fixing structure for the bridge segmental precast bent cap and the beam column has the following problems in practical use: the existing fixing mode is that the bent cap is directly placed on a beam column, necessary fixing is lacked, the traditional bent cap is integrally made, the structural strength is high, the bent cap can be installed like the above mode, but the bent cap manufactured in a segmented mode adopts the assembled fixing structure, the connecting strength between the prefabricated bent caps is low, and the safety can be guaranteed only by firm connection between the prefabricated bent caps and the column.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fixed knot constructs is assembled in bridge bent cap segmentation prefabrication to joint strength is lower between the bent cap of solving the segmentation manufacturing, the not high problem of security.

In order to achieve the above object, the utility model provides a fixed knot constructs is assembled in bridge bent cap segmentation prefabrication, include: a supporting column 1, a connecting platform 2 fixed on the top of the supporting column 1 and a cover beam 4 fixedly connected with the connecting platform 2,

wherein connect platform 2 to be the cuboid structure, slip casting groove 3 has been seted up at the middle part of connecting platform 2, a plurality of first butt joint reinforcing bars 6 of inner wall fixedly connected with of 2 both sides minor faces of connecting platform, the long limit symmetry in 2 both sides of connecting platform is seted up jaggedly, be provided with bent cap 4 in the breach, a plurality of injected hole 5 have been seted up to bent cap 4's upper surface, a plurality of second butt joint reinforcing bars 7 of two side fixedly connected with of bent cap 4, and a plurality of second butt joint reinforcing bars 7 and a plurality of first butt joint reinforcing bar 6 crisscross distribution each other, a plurality of first butt joint reinforcing bars 6 run through with the intersection of a plurality of second butt joint reinforcing bars 7 and are provided with two connecting bolt 8, two connecting bolt 8's one end fixedly connected with connecting plate 9, the one end of keeping away from connecting plate 9 is connected with fastening nut 10, connect platform 2 through connecting bolt 8 and fastening nut 10 and bent cap 4 fixed connection.

According to a specific embodiment of the present invention, the shape of a plurality of first butt-joint reinforcing bars 6 and a plurality of second butt-joint reinforcing bars 7 is U-shaped.

According to a specific embodiment of the present invention, the distance between a plurality of first butt-joint reinforcing bars 6 is adapted to the diameter of the second butt-joint reinforcing bar 7.

According to the utility model discloses a concrete embodiment, two bolt holes 13 have been seted up respectively to the edge of the breach both sides of connecting platform 2, and two bolt holes 13 have all been pegged graft and have connecting bolt 8.

According to the utility model discloses a specific embodiment, two connecting bolt 8's position is corresponding with the intersection of first butt joint reinforcing bar 6 and second butt joint reinforcing bar 7, and two connecting bolt 8 contact with the both ends of second butt joint reinforcing bar 7 respectively.

According to the utility model discloses a specific embodiment, a plurality of guiding gutters 11 have been seted up to bent cap 4 bottom surface, and the position of a plurality of guiding gutters 11 is corresponding with the position of injected hole 5.

According to the utility model discloses a concrete embodiment, the bottom surface fixedly connected with pad platform 12 of slip casting groove 3, and pad platform 12 keeps away from 3 bottom surface inner walls of slip casting groove.

According to the utility model discloses a specific embodiment, connect 2 both sides breach bases of platform and be provided with support flange 14, and support flange 14 highly the same with the height that fills up platform 12.

According to an embodiment of the invention, the upper surfaces of the support flange 14 and the cushion table 12 are both in contact with the bottom surface of the lid beam 4.

According to the utility model discloses a specific embodiment, the width of connecting 2 both sides long limit breach of platform is the same with the width of bent cap 4, and the height of breach is the same with the thickness of bent cap 4.

Compared with the prior art, the utility model provides a pair of fixed knot constructs is assembled in bridge bent cap segmentation prefabrication has following advantage:

1. this fixed knot structure is assembled in prefabricated section of bridge bent cap, first butt joint reinforcing bar and second butt joint reinforcing bar through having set up a plurality of U type, and a plurality of first butt joint reinforcing bars and the crisscross distribution each other of second butt joint reinforcing bar, through running through two connecting bolt in the position of first butt joint reinforcing bar and second butt joint reinforcing bar intersection, can make between bent cap and the connection platform through the crisscross butt joint of a plurality of first butt joint reinforcing bars and second butt joint reinforcing bar, realize the location to the bent cap, two connecting bolt of rethread are in the same place a plurality of first butt joint reinforcing bars and second butt joint reinforcing bar lock, thereby realize the bent cap and be connected the being connected of platform, a plurality of first butt joint reinforcing bars and second butt joint reinforcing bar detain each other together, can improve bent cap and connection platform joint strength greatly, and be convenient for install fast.

2. This fixed knot constructs is assembled in prefabricated section of bridge bent cap, through having set up slip casting groove, a plurality of injected hole and a plurality of guiding gutter, and the position of a plurality of injected holes is corresponding with the position of a plurality of guiding gutters, and the bottom surface of bent cap contacts with the top surface that fills up the platform with the support flange, and the thickness that supports flange and fill up the platform equals, and the bent cap is through the support flange and fill up the support of platform and the bottom surface of slip casting inslot wall contactless completely. The grouting method has the advantages that a user can slip into the grouting grooves through the plurality of slip casting holes, so that grout covers the first butt-joint reinforcing steel bars and the second butt-joint reinforcing steel bars, the grout is solidified between the cover beam and the grouting grooves and between the cover beam and the diversion grooves, the formed structures can be mutually embedded, and the lateral tensile resistance of the cover beam is improved.

Drawings

Fig. 1 is a schematic view of a bridge bent cap sectional prefabrication and assembling fixing structure provided according to an embodiment of the present invention.

Fig. 2 is according to the utility model discloses an embodiment provides a bridge bent cap segmentation is prefabricated assembles fixed knot and constructs top view.

Fig. 3 is a schematic view of a cross-sectional structure a-a according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a connection platform according to an embodiment of the present invention.

Reference numerals:

1-a support column; 2-a connection table; 3-grouting groove; 4-a capping beam; 5-grouting holes; 6-first butt-joint reinforcing steel bars; 7-second butt-joint reinforcing steel bars; 8-connecting bolts; 9-a connecting plate; 10-fastening a nut; 11-a diversion trench; 12-a cushion table; 13-bolt holes; 14-support flange.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments in order to make the concept and idea of the present invention more clearly understood by those skilled in the art. It is to be understood that the embodiments presented herein are only a few of all embodiments that the present invention may have. Those skilled in the art who review this disclosure will readily appreciate that many modifications, variations, and alternatives to those embodiments described below, in whole or in part, are possible and are contemplated as falling within the scope of the claimed invention.

As used herein, the terms "first," "second," and the like are not intended to imply any order, quantity, or importance, but rather are used to distinguish one element from another. As used herein, the terms "a," "an," and other similar terms are not intended to mean that there is only one of the things, but rather that the pertinent description is directed to only one of the things, which may have one or more. As used herein, the terms "comprises," "comprising," and other similar words are intended to refer to logical interrelationships, and are not to be construed as referring to spatial structural relationships. For example, "a includes B" is intended to mean that logically B belongs to a, and not that spatially B is located inside a. Furthermore, the terms "comprising," "including," and other similar words are to be construed as open-ended, rather than closed-ended. For example, "a includes B" is intended to mean that B belongs to a, but B does not necessarily constitute all of a, and a may also include C, D, E and other elements.

The terms "embodiment," "present embodiment," "an embodiment," "one embodiment," and "one embodiment" herein do not mean that the pertinent description applies to only one particular embodiment, but rather that the description may apply to yet another embodiment or embodiments. It will be understood by those skilled in the art that any description made herein of one embodiment may be substituted, combined, or otherwise combined with the description made herein of another embodiment or embodiments, and that the resulting new embodiments may be readily apparent to those skilled in the art, and are within the scope of the present invention.

Example 1

Additional aspects and advantages of embodiments of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments of the invention.

With reference to fig. 1-4, the embodiment of the utility model provides a pair of bridge bent cap segmentation is prefabricated and is assembled fixed knot and construct, include: the support column 1, fix at the connection platform 2 of support column 1 top and with the bent cap 4 of connection platform 2 fixed connection. Wherein connect platform 2 to be the cuboid structure, slip casting groove 3 has been seted up at the middle part of connecting platform 2, a plurality of first butt joint reinforcing bars 6 of inner wall fixedly connected with of 2 both sides minor faces of connecting platform, the long limit symmetry in 2 both sides of connecting platform is seted up jaggedly, be provided with bent cap 4 in the breach, a plurality of injected hole 5 have been seted up to bent cap 4's upper surface, a plurality of second butt joint reinforcing bars 7 of two side fixedly connected with of bent cap 4, and a plurality of second butt joint reinforcing bars 7 and a plurality of first butt joint reinforcing bar 6 crisscross distribution each other, a plurality of first butt joint reinforcing bars 6 run through with the intersection of a plurality of second butt joint reinforcing bars 7 and are provided with two connecting bolt 8, two connecting bolt 8's one end fixedly connected with connecting plate 9, the one end of keeping away from connecting plate 9 is connected with fastening nut 10, connect platform 2 through connecting bolt 8 and fastening nut 10 and bent cap 4 fixed connection.

Specifically, connect 2 both sides long limits of platform and seted up the breach, the width of breach is the same with the width of bent cap 4, and the height of breach is the same with the thickness of bent cap 4, and the position of bent cap 4 top surface is corresponding with the position of being connected 2 top surfaces of platform, connects the center department that platform 2 is located the 4 bottom surfaces of bent cap, makes bent cap 4 more match with the junction of being connected platform 2, and the installation is more firm.

Specifically, the first butt-joint reinforcing bars 6 and the second butt-joint reinforcing bars 7 are both U-shaped. Wherein the U type both ends of first butt joint reinforcing bar 6 and connection platform 2 fixed connection form closed loop structure with being connected platform 2, and the U type both ends and the bent cap 4 fixed connection of second butt joint reinforcing bar 7 form closed loop structure with bent cap 4. The spacing between the first plurality of butt-joint reinforcing bars 6 is adapted to the diameter of the second butt-joint reinforcing bar 7. The bent cap 4 and the connecting platform 2 are in staggered butt joint through a plurality of first butt joint reinforcing steel bars 6 and second butt joint reinforcing steel bars 7, and the bent cap 4 is positioned.

Specifically, two bolt holes 13 have been seted up respectively to the edge of connecting 2 breach both sides of platform, and two bolt holes 13 are all pegged graft and are had connecting bolt 8. The positions of the two connecting bolts 8 correspond to the intersection of the first butt-joint reinforcing steel bar 6 and the second butt-joint reinforcing steel bar 7, and the two connecting bolts 8 are respectively contacted with two ends of the second butt-joint reinforcing steel bar 7. Because a plurality of first butt joint reinforcing bars 6 and the mutual crisscross distribution of second butt joint reinforcing bar 7, two connecting bolt 8 all run through a plurality of first butt joint reinforcing bars 6 and the intersection of second butt joint reinforcing bar 7, through two connecting bolt 8 with a plurality of first butt joint reinforcing bars 6 and the 7 locks of second butt joint reinforcing bar together, thereby realize the fixed connection of connection platform 2 and bent cap 4, a plurality of first butt joint reinforcing bars 6 and the 7 mutual knot of second butt joint reinforcing bar are in the same place, can improve joint strength greatly. The interval between two connecting bolt 8 and the interval looks adaptation between the second butt joint reinforcing bar 7 both ends, and the surface of two connecting bolt 8 contacts with the both ends of second butt joint reinforcing bar 7 respectively, withstands second butt joint reinforcing bar 7 through two connecting bolt 8, can restrict the vertical slip of bent cap 4, improves the crushing resistance.

Specifically, a plurality of flow guide grooves 11 are formed in the bottom surface of the bent cap 4, and the positions of the flow guide grooves 11 correspond to the positions of the grouting holes 5. The bottom surface of the grouting groove 3 is fixedly connected with a pad table 12, and the pad table 12 is far away from the inner wall of the bottom surface of the grouting groove 3. The bottom edges of the notches on the two sides of the connecting platform 2 are provided with supporting flanges 14, and the height of each supporting flange 14 is the same as that of the cushion platform 12. The support flange 14 and the upper surface of the skid 12 are both in contact with the underside of the capping beam 4. The bent cap 4 is supported by the support flange 14 and the cushion table 12 and is not contacted with the bottom surface of the inner wall of the grouting groove 3 at all, so that a gap is reserved between the bottom surface of the bent cap 4 and the inner wall of the grouting groove 3 for mortar to pass through.

Specifically, two connecting bolt 8 pass through connecting plate 9 fixed connection together, and convenient installation simultaneously, two connecting bolt 8 keep away from one side threaded connection of connecting plate 9 have fastening nut 10, and fastening nut 10 is anti-skidding nut.

Example 2

The operation of the present invention will be described in detail with reference to fig. 1 to 4 as an embodiment. It should be noted that this embodiment is described as a specific embodiment, and the specific implementation is not limited to this.

When a user uses the steel bar splicing machine, the steel bar splicing machine is provided with a plurality of first splicing steel bars 6, a plurality of second splicing steel bars 7 and two connecting bolts 8, the shapes of the first splicing steel bars 6 and the second splicing steel bars 7 are both U-shaped, the distance between the first splicing steel bars 6 is matched with the diameter of the second splicing steel bars 7, two ends of the U-shaped first splicing steel bars 6 and two ends of the second splicing steel bars 7 are respectively and fixedly connected with a connecting platform 2 and a cover beam 4, one end of each connecting bolt 8 is fixedly connected with a connecting plate 9, one side of each connecting bolt 8, far away from the connecting plate 9, is in threaded connection with a fastening nut 10, the first splicing steel bars 6 and the second splicing steel bars 7 are mutually staggered, the position of the intersection of the first splicing steel bars 6 and the second splicing steel bars 7 corresponds to the position of the two connecting bolts 8, and the two connecting bolts 8 penetrate through the intersection of the first splicing steel bars 6 and the second splicing steel bars 7, can make between bent cap 4 and the connection platform 2 through the crisscross butt joint of a plurality of first butt joint reinforcing bars 6 and second butt joint reinforcing bar 7, realize the location to bent cap 4, two connecting bolt 8 locks a plurality of first butt joint reinforcing bars 6 and second butt joint reinforcing bar 7 together, thereby realize connecting, a plurality of first butt joint reinforcing bars 6 are detained each other with second butt joint reinforcing bar 7 together, can improve joint strength greatly, and be convenient for quick installation, the rethread has set up slip casting groove 3, a plurality of slip casting hole 5 and a plurality of guiding gutter 11, and the position of a plurality of slip casting hole 5 is corresponding with the position of a plurality of guiding gutter 11, the bottom surface of bent cap 4 contacts with the top surface of support flange 14 and cushion pad 12, the thickness of support flange 14 and cushion pad 12 equals, the bottom surface of bent cap 4 through support flange 14 and cushion pad 12 and the inner wall of slip casting groove 3 is not contacted completely. Can make the user through a plurality of injected hole 5 to the slip casting 3 internal slip casting to make the thick liquid cover a plurality of first butt joint reinforcing bars 6 and second butt joint reinforcing bar 7, the thick liquid solidifies between bent cap 4 and slip casting groove 3 and a plurality of guiding gutter 11 simultaneously, the structure of formation can gomphosis each other, improves bent cap 4's side direction stretching resistance.

The concepts, principles and concepts of the present invention have been described above in detail in connection with specific embodiments (including examples and illustrations). It should be understood by those skilled in the art that the embodiments of the present invention may be embodied in many different forms and that various changes, modifications, substitutions and equivalents of the steps, methods, devices and components described in the above embodiments may be made by those skilled in the art after reading the present specification and should be considered as falling within the scope of the present invention. The protection scope of the present invention is subject to the claims only.

Claims

1. The utility model provides a fixed knot constructs is assembled in prefabricated section of bridge bent cap, its characterized in that includes: a supporting column (1), a connecting platform (2) fixed on the top of the supporting column (1) and a cover beam (4) fixedly connected with the connecting platform (2),

wherein the connecting platform (2) is of a cuboid structure, the grouting groove (3) is formed in the middle of the connecting platform (2), a plurality of first butt-joint reinforcing steel bars (6) are fixedly connected to the inner walls of the short sides of the two sides of the connecting platform (2), notches are symmetrically formed in the long sides of the two sides of the connecting platform (2), the cover beam (4) is arranged in the notches, a plurality of grouting holes (5) are formed in the upper surface of the cover beam (4), a plurality of second butt-joint reinforcing steel bars (7) are fixedly connected to the two side surfaces of the cover beam (4), the second butt-joint reinforcing steel bars (7) and the first butt-joint reinforcing steel bars (6) are distributed in a mutually staggered mode, two connecting bolts (8) penetrate through the intersection of the first butt-joint reinforcing steel bars (6) and the second butt-joint reinforcing steel bars (7), and one end of the two connecting bolts (8) is fixedly connected with a connecting plate (9), keep away from the one end of connecting plate (9) is connected with fastening nut (10), connect platform (2) through connecting bolt (8) and fastening nut (10) with bent cap (4) fixed connection.

2. The bridge capping beam segmented prefabrication and assembly fixing structure of claim 1, wherein the first butt-joint reinforcing steel bars (6) and the second butt-joint reinforcing steel bars (7) are U-shaped.

3. The bridge capping beam segment prefabrication and assembly fixing structure of claim 1, wherein the spacing between a plurality of first butt reinforcing steel bars (6) is matched with the diameter of the second butt reinforcing steel bars (7).

4. The bridge bent cap segmental prefabrication, assembly and fixation structure according to claim 1, characterized in that two bolt holes (13) are respectively formed in edges of two sides of the gap of the connecting platform (2), and the connecting bolts (8) are inserted into the two bolt holes (13).

5. The bridge capping beam segment prefabrication and assembly fixing structure of claim 1, wherein the two connecting bolts (8) are positioned corresponding to the intersection of the first butt-joint reinforcing steel bar (6) and the second butt-joint reinforcing steel bar (7), and the two connecting bolts (8) are respectively contacted with two ends of the second butt-joint reinforcing steel bar (7).

6. The bridge bent cap segmental prefabrication, assembly and fixation structure according to claim 1, wherein a plurality of diversion trenches (11) are formed in the bottom surface of the bent cap (4), and the positions of the diversion trenches (11) correspond to the positions of the grouting holes (5).

7. The bridge bent cap segmental prefabrication, assembly and fixation structure according to claim 1, characterized in that a pad table (12) is fixedly connected to the bottom surface of the grouting groove (3), and the pad table (12) is far away from the inner wall of the bottom surface of the grouting groove (3).

8. The bridge capping beam segmented prefabrication and assembly fixing structure according to claim 7, wherein supporting flanges (14) are arranged on the bottom edges of the notches on the two sides of the connecting platform (2), and the height of each supporting flange (14) is the same as that of the cushion platform (12).

9. The bridge capping beam segment prefabrication and assembly fixing structure of claim 8, wherein the support flange (14) and the upper surface of the pad platform (12) are both in contact with the bottom surface of the capping beam (4).

10. The bridge bent cap segmental prefabrication, assembly and fixation structure according to claim 1, characterized in that the width of the gaps of the long sides of the connecting platform (2) is the same as the width of the bent cap (4), and the height of the gaps is the same as the thickness of the bent cap (4).