CN218540364U

CN218540364U - Supporting device for pouring number zero block on V-shaped leg pier of bridge

Info

Publication number: CN218540364U
Application number: CN202222877611.7U
Authority: CN
Inventors: 赵敏辉; 陈可可; 戴培新; 徐进; 周龙翔; 谢小强; 王阳松
Original assignee: ZHEJIANG QUZHOU TRANSPORT CONSTRUCTION GROUP CO LTD
Current assignee: ZHEJIANG QUZHOU TRANSPORT CONSTRUCTION GROUP CO LTD
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-02-28
Anticipated expiration: 2032-10-31

Abstract

The utility model relates to a strutting arrangement for pour zero number piece on bridge V type leg mound, including steel pipe assembly, first bracket component, first longeron and drawing pressure pole, the V type leg mound left and right sides all is equipped with steel pipe assembly, every group steel pipe assembly all includes first steel-pipe pile, every group steel pipe assembly top all is connected with a set of first bracket component, be connected with a plurality of second steel-pipe piles of vertical setting on the inboard bottom surface of pier body base of V type leg mound, first built-in fitting and second built-in fitting are all pre-buried on the internal surface of the left and right sides slope of V type leg mound, the first built-in fitting top of left and right sides is connected respectively at first longeron both ends, the second steel-pipe pile top is connected at first longeron middle part, drawing pressure pole both ends are connected with the second built-in fitting respectively, the first longeron upper end is connected with second bracket component; the technical problem that when a No. zero block box girder is poured by a full formwork erecting method in the prior art, a V-shaped leg pier concrete structure is prone to generating quality defects such as shrinkage cracks, surface cracks and the like is solved.

Description

Supporting device for pouring number zero block on V-shaped leg pier of bridge

Technical Field

The utility model relates to a bridge construction technical field specifically says and indicates a strutting arrangement who is used for pouring zero number piece on bridge V type leg mound.

Background

A V-shaped pier of a long-span cast-in-place box girder of a highway bridge is a bridge pier column type with a novel structure. The lower structure of the bridge is rigidly connected with a bearing platform, V-shaped leg piers are poured from bottom to top from the bearing platform to both sides in an inclined leg mode along the bridge direction during construction, supports are erected on the tops of the V-shaped leg piers at both ends to pour a zero block box girder, and an inverted triangular V-shaped leg pier reinforced concrete beam bridge structure is formed from top to bottom. Compared with the conventional vertical pier, the V-shaped leg pier has the characteristics of light weight, good stability, attractive appearance and the like, and can better beautify and coordinate the surrounding geographic environment. Because the V-shaped leg pier of the bridge is rigidly connected with the lower bearing platform and the cast-in-place box girder zero block at the upper part, the horizontal thrust exists on the V-shaped inclined leg pier due to the self weight of the concrete structure and the load pressure at the upper part, the structural stress is complex, when the conventional full-hall formwork supporting method is adopted to pour the box girder of the zero block, the quality defects of shrinkage cracks, surface cracks and the like of the concrete structure of the V-shaped leg pier are easily caused, the construction quality requirements can not be met, and the service life and the structural safety can be seriously influenced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model aims to provide a can prevent when pouring No. zero piece case roof beam that V type leg mound from producing shrinkage crack and cracked strutting arrangement in surface.

In order to solve the technical problem, the utility model provides a strutting arrangement that is used for pouring zero number piece on bridge V type leg mound, including steel pipe assembly, first bracket component, first longeron and drawing pressure pole, the V type leg mound left and right sides all is equipped with a set of steel pipe assembly, every group steel pipe assembly all includes the first steel-pipe pile that a plurality of arrays distribute, every group steel pipe assembly top all is connected with a set of first bracket component, the slope surface of V type leg mound is connected respectively to two sets of first bracket components, be connected with the second steel-pipe pile of a plurality of vertical settings on the inboard bottom surface of pier body base of V type leg mound, a plurality of second steel-pipe piles are along V type leg mound axial equidistance distribution, all pre-buried spare and second pre-buried spare on the internal surface on the left and right sides slope of V type leg mound, first pre-buried spare is located second pre-buried spare top, the first longeron both ends are connected the first longitudinal girder top of the left and right sides respectively, first longeron middle part is connected second steel-pipe pile top, drawing pressure pole both ends are connected the second pre-buried spare respectively, drawing pressure pole and first longeron parallel arrangement, first longeron upper end support component and second longeron template are used for laying all.

After the structure of the utility model is adopted, the utility model relates to a strutting arrangement for pour No. zero piece on bridge V type leg mound has following advantage: the steel pipe component is driven into the ground and connected with the first support component, a square timber and a bottom formwork which are used for pouring the V-shaped leg pier are laid on the first support component, the V-shaped leg pier is directly and tightly copied with the first support component after being poured, the second support component is connected with a V-shaped leg pier base through a first longitudinal beam, a square timber and a bottom formwork which are used for pouring a zero block are laid on the second support component, when the zero block is poured, the second steel pipe pile, the first longitudinal beam and the second support component can bear a part of longitudinal stress, horizontal thrust generated by the self weight of a concrete structure and upper load pressure is reduced, the first support component and the steel pipe component can laterally support the V-shaped leg pier and bear the horizontal thrust, in addition, a pulling and pressing rod which is located on the inner side of the V-shaped leg pier is arranged, the connection strength between slopes on two sides of the V-shaped leg pier is enhanced, the horizontal thrust can also be born, and further quality defects such as shrinkage cracks and surface cracks caused by the self weight of a concrete structure and the upper load pressure can be prevented, the safety of the V-shaped leg pier is improved, and the service life of the V-shaped leg pier is prolonged.

As an improvement, the first support assembly comprises first distribution beams, second longitudinal beams and first disc buckle supports, the top end of each first steel pipe pile is connected with the first distribution beam, the top end of the first distribution beam on each row of first steel pipe piles is connected with the same second longitudinal beam, the second longitudinal beams are axially distributed along the V-shaped leg piers, the second distribution beams are equidistantly distributed at the upper end of each second longitudinal beam along the left-right direction, the first disc buckle supports are connected to the upper ends of the second distribution beams, and the first disc buckle supports are connected to the outer surface of the slope of the V-shaped leg piers; by adopting the structure, the first distribution beams and the second distribution beams bear the component force of the horizontal thrust, and the component force is distributed to each first steel pipe pile, so that the stability of the V-shaped leg pier structure is further improved, and shrinkage cracks and surface cracks are prevented.

As an improvement, the first distribution beams at the top ends of the first two rows of first steel pipe piles close to the V-shaped leg piers are three-spliced I-shaped steel, and the first distribution beams at the top ends of the other first steel pipe piles are two-spliced I-shaped steel; by adopting the structure, the force born by the second distribution beam close to the V-shaped leg pier is larger than that born by other second distribution beams, so that the first two rows of second distribution beams close to the V-shaped leg pier adopt three-spliced I-shaped steel, and other second distribution beams adopt two-spliced I-shaped steel, so that the strength is improved, and the material is also saved.

As an improvement, a concrete part is poured on the bottom surface of the inner side of the pier body base of the V-shaped leg pier, a column base embedded part is embedded in the concrete part, and the lower end of the second steel pipe pile is connected with the column base embedded part; by adopting the structure, the connection strength between the second steel pipe pile and the V-shaped leg pier is improved through the concrete part and the column base embedded part.

As an improvement, the top end of each first embedded part and the top end of each second steel pipe pile are connected with a third distribution beam, the two ends of each first longitudinal beam are respectively connected with the third distribution beams at the top ends of the first embedded parts, and the middle part of each first longitudinal beam is connected with the third distribution beams at the top ends of the second steel pipe piles; by adopting the structure, the third distribution beam is arranged to improve the connection strength of the first longitudinal beam.

As an improvement, the top end of the second steel pipe pile is connected with a sand cylinder, and the top end of the second steel pipe pile is connected with a third distribution beam through the sand cylinder; by adopting the structure, the bottom film can be conveniently removed after the sand cylinder is poured.

As an improvement, the second support assembly comprises a bent frame and a second disc buckle support, and the bent frame is respectively arranged at the left side and the right side of the second disc buckle support; by adopting the structure, the bottom film and the square wood are paved on the bent frame and the second disc buckle bracket, so that the strength is further improved.

Drawings

Fig. 1 is a schematic structural diagram of the whole body of the present invention.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is a partially enlarged view of a portion B in fig. 1.

Reference numerals: 100. a steel pipe assembly; 200. a first bracket assembly; 300. a second bracket assembly; 1. a first stringer; 2. pulling and pressing the rod; 3. a first steel pipe pile; 4. a second steel pipe pile; 5. a first embedded part; 6. a second embedded part; 7. a first distribution beam; 8. a second distribution beam; 9. a second stringer; 10. a first disc buckle holder; 11. a concrete part; 12. column base embedded parts; 13. a third distribution beam; 14. a sand cylinder; 15. a bent frame; 16. the second plate buckle support.

Detailed Description

The following description is made in detail with reference to the accompanying drawings for a supporting device for pouring a zero block on a V-shaped leg pier of a bridge.

Note that the left and right in the present embodiment are horizontal left and right directions as shown in fig. 1, and the left and right directions are arranged in a row and the axial direction of the V-shaped leg pier is arranged in a column.

As shown in fig. 1 to 3, a supporting device for pouring a zero number block on a V-shaped leg pier of a bridge comprises a steel pipe assembly 100, a first bracket assembly 200, a first longitudinal beam 1 and a tension and compression rod 2, wherein a group of steel pipe assemblies 100 are arranged on the left side and the right side of the V-shaped leg pier, each group of steel pipe assemblies 100 comprises a plurality of first steel pipe piles 3 distributed in an array manner, namely, in each steel pipe assembly 100 on each side, each row of the plurality of first steel pipe piles 3 are distributed at equal intervals, each row of the plurality of first steel pipe piles 3 are also distributed at equal intervals, during construction, a base of the V-shaped leg pier is poured first, sites on the left side and the right side of the base of the V-shaped leg pier are leveled, a sample is measured and set, the first steel pipe piles 3 are driven in, the first steel pipe piles are drilled by a rotary drilling machine and then driven by a high-power D90 vibration hammer, the first steel pipe piles 3 are required to pass through a pebble layer to a strong rock stratum, the driving depth is controlled to be more than 30 centimeters, and the driving depth is vertically arranged.

As shown in fig. 1, a group of first bracket assemblies 200 is connected to the top end of each group of steel pipe assemblies 100, and the two groups of first bracket assemblies 200 are respectively connected to the outer surfaces of the slopes of the V-shaped leg piers; each group of first bracket assemblies 200 comprises a first distribution beam 7, a second distribution beam 8, a second longitudinal beam 9 and a first disc buckle bracket 10, the top end of each first steel pipe pile 3 is connected with the first distribution beam 7, the first distribution beam 7 at the top ends of the first two columns of first steel pipe piles 3 close to the V-shaped leg pier is a three-spliced i-steel, the first distribution beams 7 at the top ends of the rest first steel pipe piles 3 are two-spliced i-steel, as shown in fig. 1 and fig. 2, taking the first steel pipe pile 3 at the right side of the V-shaped leg pier as an example, the first distribution beams 7 at the top ends of the first steel pipe piles 3 in the first column and the second column of first steel pipe piles 3 in the first column from left to right are all three-spliced i-steel, and the first distribution beams 7 at the top ends are two-spliced i-steel from the first steel pipe pile 3 in the third column; all the first distribution beams 7 are welded with the corresponding first steel pipe piles 3 through channel steel to form a triangular supporting structure no matter the three-spliced I-steel or the two-spliced I-steel; the top end of a first distribution beam 7 on each row of first steel pipe piles 3 is connected with a same second longitudinal beam 9, namely the top end of the first distribution beam 7 of the same row of first steel pipe piles 3 is connected with a same second longitudinal beam 9 horizontally arranged from left to right, the second longitudinal beams 9 are axially distributed along a V-shaped leg pier, the upper end of each second longitudinal beam 9 is equidistantly distributed with a plurality of second distribution beams 8 along the left-right direction, the second distribution beams 8 adopt two-spliced I-shaped steel or single I-shaped steel, a first disc buckle bracket 10 is connected with the upper end of the second distribution beam 8, the first disc buckle bracket 10 is connected with the outer surface of the slope of the V-shaped leg pier, the first disc buckle bracket 10 comprises a plurality of upright posts, a plurality of connecting discs, a plurality of horizontal rods and a plurality of inclined rods, every 8 tops of second distribution roof beam all connect an stand, all cup jointed a plurality of connection pads that distribute along vertical equidistance on the every stand, two adjacent connection pads are connected respectively to the horizon bar level setting and both ends, and the down tube then the slant sets up and connects two adjacent connection pads of slant, the down tube, all adopt the knot formula to be connected between horizon bar and the connection pad, wherein, still be connected with fastener formula steel pipe on the connection pad of middle stand, fastener formula steel pipe sets up toward V type leg mound slope direction slant, square timber and die block are laid in proper order on fastener formula steel pipe, be used for pouring V type leg mound, and make fastener formula steel pipe and slope copy tightly, the concrete structure and the distribution mode of first dish knot support 10 are prior art, no longer describe herein.

As shown in fig. 1 and 3, a plurality of second steel pipe piles 4 which are vertically arranged are connected to the bottom surface of the inner side of the pier body base of the V-shaped leg pier, namely, a plurality of second steel pipe piles 4 which are vertically arranged are connected to the inner triangular bottom surface of the V-shaped leg pier, the plurality of second steel pipe piles 4 are distributed along the axial direction of the V-shaped leg pier at equal intervals, a first embedded part 5 and a second embedded part 6 are embedded on the inner surface of the slope at the left side and the right side of the V-shaped leg pier, the first embedded part 5 is a short column which is vertically arranged, the second embedded part 6 is a plurality of bolts which are perpendicular to the inner surface of the slope, and the first embedded part 5 and the second embedded part 6 are a plurality of bolts which are distributed along the axial direction of the V-shaped leg pier at equal intervals, the left end and the right end of a first longitudinal beam 1 are respectively connected with the top ends of first embedded parts 5 on the left side and the right side, the middle of the first longitudinal beam 1 is connected with the top end of a second steel pipe pile 4, furthermore, the top end of each first embedded part 5 and the top end of each second steel pipe pile 4 are both connected with a third distribution beam 13, the two ends of the first longitudinal beam 1 are respectively connected with the third distribution beam 13 on the top end of the first embedded part 5, the middle of the first longitudinal beam 1 is connected with the third distribution beam 13 on the top end of the second steel pipe pile 4, and the third distribution beams 13 are all three-spliced I-shaped steel, wherein the top end of the second steel pipe pile 4 is not directly connected with the third distribution beams 13 through a sand cylinder 14, namely the top end of the second steel pipe pile 4 is connected with a sand cylinder 14, the top end of the sand cylinder 14 is connected with the third distribution beam 13, the concrete structure of the sand cylinder 14 is the prior art, and no further description is given herein; in addition, a concrete part 11 is poured on the bottom surface of the inner side of the pier body base of the V-shaped leg pier, in the embodiment, the height of the concrete part 11 is 1m, a column base embedded part 12 is embedded in the concrete part 11, and the lower end of the second steel pipe pile 4 is connected with the column base embedded part 12.

As shown in fig. 1, two ends of a tension and compression bar 2 are respectively connected with a second embedded part 6, the tension and compression bar 2 and a first longitudinal beam 1 are arranged in parallel, the upper end of the first longitudinal beam 1 is connected with a second bracket component 300, and both the first bracket component 200 and the second bracket component 300 are used for paving square timbers and bottom formworks; the second bracket assembly 300 includes a bent frame 15 and a second disc buckle bracket 16, the bent frame 15 is respectively disposed at the left and right sides of the second disc buckle bracket 16, a square timber and a bottom formwork are laid at the upper ends of the bent frame 15 and the second disc buckle bracket 16, wherein the second disc buckle bracket 16 has the same structure as the first disc buckle bracket 10, and the description is omitted here.

The steel pipe assembly 100 is driven into the ground and connected with the first support assembly 200, a square timber and a bottom formwork for pouring V-shaped leg piers are laid on the first support assembly 200, the V-shaped leg piers are directly and tightly picked up with the first support assembly 200 after being poured, the second support assembly 300 is connected with a V-shaped leg pier base through the first longitudinal beam 1, a square timber and a bottom formwork for pouring a zero block are laid on the second support assembly 300, when the zero block is poured, the second steel pipe pile 4, the first longitudinal beam 1 and the second support assembly 300 can bear a part of longitudinal stress, so that the horizontal thrust generated by the self weight of a concrete structure and the upper load pressure is reduced, the first support assembly 200 and the steel pipe assembly 100 can laterally support the V-shaped leg piers and simultaneously bear the horizontal thrust, in addition, a tension rod 2 positioned on the inner side of the V-shaped leg piers is further arranged, the connection strength between slopes on two sides of the V-shaped leg piers is enhanced, the horizontal thrust and the defects of the horizontal thrust and the surface of the V-shaped leg piers caused by the self weight of the concrete structure and the upper load are also can be prevented, and the service life of the V-shaped leg piers is prolonged.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned one, and all other embodiments obtained by those skilled in the art without any inventive work belong to the protection scope of the present invention.

Claims

1. The supporting device for pouring the zero block on the V-shaped leg pier of the bridge is characterized by comprising steel pipe assemblies (100), first support assemblies (200), first longitudinal beams (1) and pull and press rods (2), wherein the left side and the right side of the V-shaped leg pier are respectively provided with one group of steel pipe assemblies (100), each group of steel pipe assemblies (100) comprises a plurality of first steel pipe piles (3) distributed in an array manner, the top end of each steel pipe assembly (100) is connected with one group of first support assemblies (200), the two groups of first support assemblies (200) are respectively connected with the outer surface of a slope of the V-shaped leg pier, the inner bottom surface of the inner side of the pier body base of the V-shaped leg pier is connected with a plurality of vertically arranged second steel pipe piles (4), the second steel pipe piles (4) are distributed in an axial equidistant manner along the V-shaped leg pier, the inner surfaces of the slopes on the left side and the right side of the V-shaped leg pier are respectively provided with a first embedded part (5) and a second embedded part (6), the first embedded part (5) is positioned above the second embedded part (6), the top ends of the first longitudinal beams (1) are respectively connected with the second longitudinal beams (1), the top end of the second longitudinal beams (1) are connected with the second pull and the press rods (2), the first support assembly (200) and the second support assembly (300) are used for paving square timbers and bottom formworks.

2. The supporting device for casting the zero-number block on the V-shaped leg pier of the bridge, according to claim 1, is characterized in that the first bracket assembly (200) comprises a first distribution beam (7), a second distribution beam (8), a second longitudinal beam (9) and a first disc buckle bracket (10), the top end of each first steel pipe pile (3) is connected with the first distribution beam (7), the top end of the first distribution beam (7) on each row of the first steel pipe piles (3) is connected with the same second longitudinal beam (9), a plurality of the second longitudinal beams (9) are axially distributed along the V-shaped leg pier, the upper end of each second longitudinal beam (9) is equidistantly distributed with the plurality of the second distribution beams (8) along the left-right direction, the first disc buckle bracket (10) is connected to the upper end of the second distribution beam (8), and the first disc buckle bracket (10) is connected with the slope outer surface of the V-shaped leg pier.

3. The supporting device for pouring the zero-number block on the V-shaped leg pier of the bridge according to claim 2, wherein the first distribution beams (7) close to the top ends of the first two columns of the V-shaped leg pier are three-spliced I-shaped steel, and the first distribution beams (7) at the top ends of the rest first steel pipe piles (3) are two-spliced I-shaped steel.

4. The supporting device for casting the zero-number block on the V-shaped leg pier of the bridge according to claim 1, wherein a concrete part (11) is cast on the bottom surface of the inner side of the pier body base of the V-shaped leg pier, a column base embedded part (12) is embedded in the concrete part (11), and the lower end of the second steel pipe pile (4) is connected with the column base embedded part (12).

5. The supporting device for casting the zero-number block on the V-shaped leg pier of the bridge according to claim 1, wherein a third distribution beam (13) is connected to the top end of each first embedded part (5) and the top end of each second steel pipe pile (4), the two ends of each first longitudinal beam (1) are respectively connected to the third distribution beam (13) at the top end of each first embedded part (5), and the middle of each first longitudinal beam (1) is connected to the third distribution beam (13) at the top end of each second steel pipe pile (4).

6. The supporting device for casting the zero-number block on the V-shaped leg pier of the bridge, according to claim 5, is characterized in that a sand cylinder (14) is connected to the top end of the second steel pipe pile (4), and the top end of the second steel pipe pile (4) is connected with the third distribution beam (13) through the sand cylinder (14).

7. The supporting device for casting the zero-number block on the V-shaped leg pier of the bridge according to claim 1, wherein the second bracket assembly (300) comprises a bent frame (15) and a second disc buckling bracket (16), and the bent frame (15) is respectively arranged at the left side and the right side of the second disc buckling bracket (16).