CN112252167A

CN112252167A - Bridge capping beam and construction method

Info

Publication number: CN112252167A
Application number: CN202011094647.7A
Authority: CN
Inventors: 王新泉
Original assignee: Zhejiang Shirun Jianchuang Technology Development Co Ltd
Current assignee: Zhejiang Shirun Jianchuang Technology Development Co Ltd
Priority date: 2020-10-14
Filing date: 2020-10-14
Publication date: 2021-01-22
Anticipated expiration: 2040-10-14
Also published as: CN112252167B

Abstract

The invention provides a bridge bent cap and a construction method, wherein a built-in ring plate and a ring plate sleeve plate are arranged on the outer side of a pier stud reinforcement cage, a hoop side ear plate is arranged on the outer side wall of a hoop plate, and an embedded arc plate is arranged on the inner side wall; after the longitudinal rib fastening body is adopted to limit the longitudinal ribs of the bent cap beam, the longitudinal ribs of the bent cap beam are integrally bent through the first adjusting body and the second adjusting body; the positions of the longitudinal ribs of the bent cap are limited by means of longitudinal rib limiting side plates on the jig frame supporting columns and longitudinal rib limiting bottom plates on the jig frame bottom plates, and the positions of the bent cap stirrups are limited by means of stirrup limiting plates; the movable slide rail and the cover beam template on the upper part of the movable slide rail can be pushed to a set position through the pushing position control screw rod, and a lifting position control body is arranged between the cover beam template and the fixed slide rail; the concrete hopper, the surface strickling device and the surface vibration device can move along the pouring sliding beam under the action of the rolling and pulling position control cable. The invention can improve the bearing performance and integrity of the formwork system and reduce the difficulty of concrete pouring construction.

Description

Bridge capping beam and construction method

Technical Field

The invention relates to the field of bridge engineering, in particular to a bridge capping beam and a construction method, which can improve the bearing performance and integrity of a formwork system, improve the construction efficiency and reduce the difficulty of concrete pouring construction, and are suitable for bridge capping beam installation engineering.

Background

The capping beam is used as a connecting member of the bridge box beam and the pier stud, and the construction quality of the capping beam is usually the key point of engineering control. How to improve the rolling quality of the steel reinforcement cage, reduce the formwork erecting difficulty and improve the concrete pouring construction efficiency during the construction of the bent cap is always the key point of engineering technical research.

In the prior art, a high pier capping beam construction method is provided, which comprises the following steps: 1) mounting a hoop; 2) mounting a longitudinal beam; 3) mounting a cross beam; 4) mounting a cover beam bottom die; 5) hoisting the bent cap steel reinforcement cage; 6) installing a side die and an end die of the bent cap; 7) installing an embedded part; 8) pouring concrete; 9) removing the template; the technology utilizes the maximum static friction force generated by clamping the anchor ear and the pier body in the high pier capping beam construction process to overcome the weight of temporary facilities, capping beam concrete and capping beam steel bars. This technique relies on the frictional force between staple bolt and pier stud to undertake upper portion load, though can satisfy the requirement of bearing under suitable operating mode, but, when upper portion load was great, the frictional contact area that needs increased, not only can increase the consumption of material, required improvement to the contact performance of interface moreover, has increaseed the degree of difficulty of site operation.

In view of this, in order to improve the quality and efficiency of bridge capping beam construction, the invention of a bridge capping beam and a construction method which can improve the bearing performance and integrity of a formwork system, improve the construction efficiency and reduce the difficulty of concrete pouring construction is urgently needed at present.

Disclosure of Invention

The invention aims to provide a bridge capping beam and a construction method, which can improve the bearing performance and integrity of a formwork system, improve the construction efficiency and reduce the difficulty of concrete pouring construction.

The scheme provides a construction method of a bridge bent cap, which comprises the following construction steps of 1) construction preparation 2) erecting a formwork system; 3) bending the longitudinal ribs of the bent cap beam; 4) binding a cover beam reinforcement cage; 5) erecting a cover beam template; 6) and (5) pouring concrete into the cover beam.

According to another aspect of the scheme, the bridge bent cap constructed according to the construction method of the bridge bent cap provided by the scheme is provided.

Compared with the prior art, the technical scheme has the following characteristics and beneficial effects:

(1) the invention arranges the built-in ring plate and the ring plate sleeve plate outside the pier stud reinforcement cage, and can form the hoop connecting groove on the outer side wall of the pier stud concrete, thereby improving the connecting strength of the upper-layer hoop and the lower-layer hoop with the pier stud concrete; meanwhile, the hoop side ear plates are arranged on the outer side walls of the hoop plates, and the embedded arc plates are arranged on the inner side walls of the hoop plates, so that the positioning and connecting difficulty of the upper-layer hoop and the lower-layer hoop can be reduced, and the supporting difficulty of the platform support columns can be reduced; the platform supporting columns are respectively arranged on the hoop side ear plates of the upper-layer hoop and the lower-layer hoop, the inter-plate supporting rods are arranged between the upper-layer hoop and the lower-layer hoop, and the hoop connecting ribs are arranged between the adjacent platform supporting columns, so that the bearing performance and the integrity of the formwork supporting system can be effectively improved.

(2) According to the bent into a bent.

(3) According to the invention, the positions of the longitudinal ribs of the bent cap can be limited by means of the longitudinal rib limiting side plates on the jig frame supporting columns and the longitudinal rib limiting bottom plates on the jig frame bottom plates, and the positions of the bent cap stirrups can be limited by means of the stirrup limiting plates, so that the positioning difficulty of the bent cap longitudinal ribs and the bent cap stirrups can be effectively reduced; meanwhile, the stirrup limiting plate can be connected with the column side sliding groove in the jig frame support column through the sliding plate hanging plate, so that the efficiency of the bent cap stirrup limiting construction is improved.

(4) The fixed slide rails are respectively arranged on two sides of the movable slide rail, and the movable slide rail, a first cover beam template and a second cover beam template on the upper portion of the movable slide rail can be pushed to set positions through the pushing position control screw rod; meanwhile, the push screw is provided with the pull-back baffle, and the push baffle is provided with the baffle limiting body, so that the efficiency of the cover beam formwork dismantling construction can be improved; lifting control bodies with different thicknesses are arranged between the first cover beam template and the fixed slide rail, so that the difficulty of template positioning and dismantling construction can be reduced.

(5) The concrete hopper can move along the pouring sliding beam under the action of the rolling and pulling position control cable, so that the difficulty of moving and pouring concrete is reduced; meanwhile, the lower surface of the shifting platform plate is provided with the height-adjustable positioning inner pipe, and the lower part of the fixing inner pipe, the surface strickling device and the surface vibrating device can synchronously carry out vibration compaction and surface strickling construction of the cover beam concrete after the concrete is poured.

Drawings

FIG. 1 is a flow chart of the construction of a bridge capping beam according to the present invention;

FIG. 2 is a schematic view of the layout structure of the built-in ring plate of FIG. 1;

FIG. 3 is a schematic view of the arrangement of the bent cap form support system of FIG. 1;

FIG. 4 is a schematic structural view of the upper and lower hoops of FIG. 3;

FIG. 5 is a schematic view of the bent device for longitudinal bars of the capping beam of FIG. 1;

FIG. 6 is a schematic view of the connection structure between the fastening body of the longitudinal rib and the longitudinal rib of the canopy in FIG. 5;

FIG. 7 is a schematic structural view of a cap beam longitudinal bar binding jig frame in FIG. 1;

FIG. 8 is a schematic view of a connection structure between the stirrup limiting plate and the jig frame brace in FIG. 7;

FIG. 9 is a schematic structural view of the longitudinal rib limiting base plate of FIG. 7;

FIG. 10 is a schematic view of a connection structure between the longitudinal rib limiting plate and the skateboard suspending plate in FIG. 7;

FIG. 11 is a schematic view of the capping beam form bracing structure of FIG. 1;

FIG. 12 is a schematic plan view of the connection structure of the movable rail and the fixed rail of FIG. 11;

FIG. 13 is a schematic cross-sectional view of the connection structure of the movable rail and the fixed rail of FIG. 11;

FIG. 14 is a schematic illustration of the capping beam concrete pour construction of FIG. 1;

FIG. 15 is a schematic view of the surface smoothing device and the surface vibrating device of FIG. 14 in connection with the alignment key plate;

FIG. 16 is a schematic view of the connection of the displacement connecting plate and the perfusion skid of FIG. 14.

In the figure: 1-pier stud reinforcement cage; 2-built-in ring plate; 3-ring plate sleeve plate; 4-pier stud concrete; 5-anchor ear connecting groove; 6-upper hoop; 7-lower hoop; 8-embedded arc plate; 9-anchor ear connecting bolt; 10-hoop plate; 11-a strap plate fastening bolt; 12-hoop side ear panels; 13-inter-plate struts; 14-a strut positioning bolt; 15-supporting the platform plate; 16-bracing column position control beam; 17-a platform brace; 18-strut cuffs; 19-ferrule tie-bars; 20-rotating hinge of the supporting plate; 21-longitudinal bar fastening body; 22-binding the tire plates; 23-a first mediator; 24-rotating the supporting plate; 25-a second mediator; 26-turning hinge of the adjusting body; 27-supporting a rib positioning beam; 28-longitudinal support ribs; 29-positioning the corner brace; 30-angle brace position control bolt; 31-a bed bottom plate; 32-a jig frame support column; 33-longitudinal rib limit bottom plate; 34-a bottom gusset plate; 35-a bottom plate connecting bolt; 36-longitudinal rib limit side plates; 37-longitudinal rib limiting grooves; 38-connecting the slide plate; 39-a skateboard hanging plate; 40-column side chute; 41-stirrup limiting plate; 42-stirrup limiting grooves; 43-capping beam stirrups; 44-bent cap reinforcement cages; 45-template supporting beam; 46-a movable slide rail; 47-a pushing baffle; 48-fixed slide rail; 49-pushing position control screw; 50-a fixed baffle; 51-a position control bolt; 52-baffle plate limiting body; 53-capping beam template; 54-a first capping beam template; 55-a second capping beam template; 56-lifting the control body; 57-position control body bolt; 58-seam closures; 59-pouring a support column; 60-pillar bottom hoop plate; 61-bottom hoop fastening bolt; 62-pouring a sliding beam; 63-transverse rolling and pulling machine; 64-a shifting platform plate; 65-a shifting roller; 66-fixing the outer tube; 67-shifting the connection plate; 68-hopper positioning plate; 69-concrete hopper; 70-rigid connection pipe; 71-perfusion connection tube; 72-flexible infusion tubing; 73-rolling and pulling the position control cable; 74-positioning the inner tube; 75-spring support tenon; 76-positioning bolt connecting plate; 77-surface scraping device; 78-a surface vibration device; 79-strike plate locating pin; 80-vibration plate positioning bolt; 81-longitudinal ribs of the capping beam; 82-ring plate connecting bolt; 83-hoop ear plates; 84-ear plate diagonal bracing; 85-fastening clamping plates; 86-longitudinal rib arc grooves; 87-a regulator strut; 88-regulating body limit plate; 89-a pressure regulating body; 90-transverse supporting ribs; 91-clamping plate fastening bolt; 92-slide rail lugs; 93-fixing lug grooves; 94-pullback baffle; 95-screw through hole; 96-screw connecting groove; 97-template seam step; 98-tenon elastic expansion ribs; 99-roller limiting groove; 100-beam inner chute; 101-vertical scraping plate; 102-transverse screed plate; 103-residual material recovery holes; 104-a cutting edge; 105-excess material recycling bin; 106-vibrating flat base plate; 107-surface vibrator; 108-a shock absorbing interface; 109-capping beam concrete; 110-tube wall positioning hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.

Fig. 1 is a flow chart of the construction process of the bridge capping beam, and referring to fig. 1, the construction process of the steel bridge capping beam comprises the following construction steps:

1) construction preparation: two built-in ring plates (2) are arranged on the outer side of the pier stud reinforcement cage (1), and the built-in ring plates (2) are welded with the pier stud reinforcement cage (1); an annular ring plate sleeve plate (3) is arranged on the outer side wall of the built-in ring plate (2); pouring construction of pier column concrete (4) is carried out in the pier column reinforcement cage (1); preparing materials and devices required by construction;

2) erecting a formwork system: firstly chiseling a ring plate sleeve plate (3) on the outer side of a built-in ring plate (2) to form a hoop connecting groove (5), then respectively embedding embedded arc plates (8) of an upper layer hoop (6) and a lower layer hoop (7) into the hoop connecting groove (5), firmly connecting a hoop plate (10) with the built-in ring plate (2) through a hoop connecting bolt (9), and firmly connecting the hoop plate (10) with pier stud concrete (4) in a mirror image manner through a hoop plate fastening bolt (11); an inter-plate stay bar (13) is arranged between hoop side ear plates (12) on the outer sides of an upper-layer hoop (6) and a lower-layer hoop (7), a stay bar positioning bolt (14) is arranged above the inter-plate stay bar (13) to connect the inter-plate stay bar (13) and the hoop side ear plates (12), and the connection strength of the inter-plate stay bar (13) and the hoop side ear plates (12) is controlled through the stay bar positioning bolt (14); a support column position control beam (16) parallel to the support platform plate (15) is laid between the hoop side ear plates (12) with the same elevation, and the platform support column (17) is firmly connected with the support column position control beam (16); firstly, arranging a support column hoop (18) at the outer side of a platform support column (17), then adjusting the top surface elevation of the platform support column (17), then firmly connecting the support column hoop (18) at the outer side of the adjacent platform support column (17) through a hoop connecting rib (19), and finally placing a support platform plate (15) at the top end of the platform support column (17);

3) bending the longitudinal ribs of the bent cap beam: arranging the rolled longitudinal ribs (81) of the bent cap into a row, arranging 5 sets of longitudinal rib fastening bodies (21) along the length direction of the longitudinal ribs (81) of the bent cap, and connecting the longitudinal ribs (81) of the bent cap together through the longitudinal rib fastening bodies (21); a first adjusting body (23) and a rotary supporting plate (24) are arranged on the binding tire plate (22), the binding tire plate (22) is connected with the rotary supporting plate (24) through a supporting plate rotating hinge (20), and a second adjusting body (25) is arranged on the rotary supporting plate (24); the first adjusting body (23) and the second adjusting body (25) are respectively connected with the longitudinal bar fastening body (21) on the inclined section and the vertical section of the longitudinal bar (81) of the bent cap through adjusting body rotating hinges (26); the method comprises the steps that firstly, longitudinal support ribs (28) on the lower surface of a support rib positioning beam (27) are connected with the starting points of the inclined sections of the bent cap longitudinal ribs (81), then, a first adjusting body (23) exerts jacking force on the bent cap longitudinal ribs (81), the inclined angles of the inclined sections of the bent cap longitudinal ribs (81) meet set requirements, then, a rotary supporting plate (24) is rotated to 45-60 degrees through a positioning angle support (29), and the positioning angle support (29) is firmly connected with a binding tire plate (22) through an angle support position control bolt (30); after the other end of the second adjusting body (25) is connected with the rotary supporting plate (24) through the adjusting body hinge (26), the second adjusting body (25) applies jacking force to the vertical section of the vertical rib (81) of the bent cap, so that the inclination angle of the vertical section of the vertical rib (81) of the bent cap meets the set requirement;

4) and (3) binding a cover beam reinforcement cage: two rows of jig support columns (32) are symmetrically arranged on a jig base plate (31), 2 rows of longitudinal rib limiting base plates (33) are arranged on the jig base plate (31), a base plate support plate (34) is arranged at the joint of the longitudinal rib limiting base plates (33) and the jig base plate (31), and the base plate support plate (34) is firmly connected with the jig base plate (31) by means of a base plate connecting bolt (35); after checking that the longitudinal rib limiting bottom plate (33) and the longitudinal rib limiting groove (37) of the longitudinal rib limiting side plate (36) are on the same longitudinal section, embedding the middle section of the longitudinal rib (81) of the bent cap into the longitudinal rib limiting groove (37) of the longitudinal rib limiting bottom plate (33), and embedding the vertical section of the longitudinal rib (81) of the bent cap into the longitudinal rib limiting groove (37) of the longitudinal rib limiting side plate (36); inserting a sliding plate hanging plate (39) connected with the end part of a sliding plate (38) into a column side sliding groove (40), enabling a stirrup limiting plate (41) to slide to a set height position in parallel with the column side sliding groove (40), limiting the position of a cover beam stirrup (43) through a stirrup limiting groove (42) on the stirrup limiting plate (41), and then binding and connecting the cover beam stirrup (43) with a cover beam longitudinal rib (81);

5) the bent cap template (53) is erected: firstly, a template supporting beam (45) is arranged on a supporting platform plate (15), then a movable sliding rail (46) is arranged on the template supporting beam (45), and a pushing baffle plate (47) opposite to a fixed baffle plate (50) is arranged on the movable sliding rail (46); two sides of each movable slide rail (46) are respectively provided with a fixed slide rail (48), and a pushing position control screw rod (49) penetrates through a position control bolt (51) on a fixed baffle (50) and then is inserted into a baffle limiting body (52); the lower surfaces of the first cover beam template (54) and the second cover beam template (55) are respectively connected with the upper surface of the movable slide rail (46); the movable slide rail (46) together with a first cover beam template (54) and a second cover beam template (55) on the upper surface of the movable slide rail are pressed to a designed position through a pushing position control screw rod (49); inserting a lifting control body (56) into a gap between the first cover beam template (54) and the second cover beam template (55) and the fixed slide rail (48), and limiting the position of the lifting control body (56) through a control body bolt (57); arranging a seam closing body (58) at the seam of the first cover beam template (54) and the second cover beam template (55);

6) pouring the cover beam concrete (109): sliding the cover beam template (53) to a set position, and hoisting the cover beam reinforcement cage (44) into the cover beam template; the bottom end of the pouring support column (59) is connected with the template support beam (45) through a support column bottom hoop plate (60) and a bottom hoop fastening bolt (61); a pouring sliding beam (62) is arranged at the top end of the pouring support column (59), and two transverse rolling machines (63) are respectively arranged at two ends of the pouring sliding beam (62); a shifting roller (65) and a fixed outer tube (66) are arranged on the lower surface of a shifting platform plate (64), shifting connecting plates (67) are arranged on the upper surface, and a hopper positioning plate (68) is arranged between the shifting connecting plates (67) which are opposite in a mirror image manner; after the concrete hopper (69) is firmly connected with the displacement connecting plate (67) through the hopper positioning plate (68), a rigid connecting pipe (70) and a pouring connecting pipe (71) are sequentially arranged at the bottom end of the concrete hopper (69), the pouring connecting pipe (71) is communicated with a flexible pouring pipe (72), and pouring construction of the cover beam concrete (109) is carried out through the flexible pouring pipe (72); one end of the rolling and pulling position control cable (73) is connected with the shifting connecting plate (67), and the other end is connected with the transverse rolling and pulling machine (63); inserting the top end of the positioning inner tube (74) into the fixed outer tube (66), and controlling the height of the positioning inner tube (74) in the fixed outer tube (66) through a spring support tenon (75); the bottom end of the positioning inner tube (74) is provided with a positioning bolt connecting plate (76), the lower part of the positioning bolt connecting plate (76) is provided with a surface strickle device (77) and a surface vibration device (78), and the positioning bolt connecting plate (76), the surface strickle device (77) and the surface vibration device (78) are respectively and firmly connected through a strickle positioning bolt (79) and a vibration plate positioning bolt (80).

Referring to fig. 2 to 16, the bridge capping beam and the construction method thereof are characterized in that a built-in ring plate (2) and a ring plate sleeve plate (3) are arranged on the outer side of a pier stud reinforcement cage (1), a hoop side ear plate (12) is arranged on the outer side wall of a hoop plate (10), an embedded arc plate (8) is arranged on the inner side wall of the hoop plate (10), and after a longitudinal bar fastening body (21) is adopted to limit a capping beam longitudinal bar (81), the capping beam longitudinal bar (81) is integrally bent through a first adjusting body (23) and a second adjusting body (25) in sequence; the positions of the longitudinal ribs (81) of the cover beam can be limited by means of longitudinal rib limiting side plates (36) on the jig frame support columns (32) and longitudinal rib limiting bottom plates (33) on the jig frame bottom plates (31), and the positions of the cover beam stirrups (43) can be limited by means of stirrup limiting plates (41); the movable slide rail (46) and the cover beam template (53) on the upper part of the movable slide rail can be pushed to a set position through a pushing position control screw rod (49), and a lifting position control body (56) is arranged between the cover beam template (53) and the fixed slide rail (48); the concrete hopper (69), the surface scraping device (77) and the surface vibrating device (78) can move along the pouring slide beam (62) under the action of the rolling and pulling control position cable (73).

Step 1), rolling a built-in ring plate (2) by adopting a steel plate, and uniformly arranging 3-6 ring plate connecting bolts (82) connected with hoop connecting bolts (9) at intervals along the shape of a ring on the built-in ring plate; the ring plate sleeve plate (3) is made of a plastic plate or a foam plate and is adhered and connected with the built-in ring plate (2), and the outer surface of the ring plate sleeve plate is flush with the surface of the pier stud concrete (4).

Step 2), the upper-layer hoop (6) and the lower-layer hoop (7) both comprise two hoop plate hoops (10) with the same plane shape, and the size of the inner section of the two hoop plate hoops (10) after being connected through the hoop ear plates (83) and the hoop plate fastening bolts (11) is the same as that of the outer section of the pier stud concrete (4); the hoop plate (10) is formed by rolling a steel plate and is integrally rolled with the hoop ear plate (83), a hoop side ear plate (12) vertically welded with the hoop plate (10) is arranged on the outer side wall of the hoop plate (10), and an ear plate inclined strut (84) is arranged between the hoop side ear plate (12) and the hoop ear plate (83); the hoop side ear plates (12) are made of steel plates, and holes connected with the stay bars (13) between the plates are formed in the hoop side ear plates; the supporting column position control beam (16) is formed by rolling profile steel or steel plates and is vertically welded with the platform supporting column (17); the hoop connecting rib (19) comprises a screw rod and a bolt, the fastening directions of the screw rods on the two sides of the bolt are opposite, and the screw rods on the two sides of the bolt are respectively and vertically welded and connected with the support column hoop (18) on the outer side of the adjacent platform support column (17).

Step 3), arranging 1 set of longitudinal bar fastening bodies (21) in the middle of the longitudinal bars (81) of the bent cap, and respectively arranging 2 sets of longitudinal bars (81) of the bent cap in the inclined section and 2 sets of longitudinal bars in the vertical section; the longitudinal rib fastening body (21) comprises two fastening clamp plates (85) with the same shape, and a longitudinal rib arc groove (86) and a hole connected with a clamp plate fastening bolt (91) are arranged on the fastening clamp plates (85); the longitudinal rib arc groove (86) is arc-shaped, and the diameter of the longitudinal rib arc groove is the same as the outer diameter of the longitudinal rib (81) of the cover beam; the first adjusting body (23) and the second adjusting body (25) respectively comprise two adjusting body support rods (87) and two adjusting body limiting plates (88), one end of each adjusting body support rod (87) is vertically welded with the corresponding adjusting body limiting plate (88), the other end of each adjusting body support rod is provided with an adjusting body rotating hinge (26), and a pressure adjusting body (89) is arranged between the two adjusting body limiting plates (88) which are opposite in mirror image; the longitudinal supporting ribs (28) are formed by rolling steel plates, the lateral walls of the longitudinal supporting ribs are provided with transverse supporting ribs (90) facing the inclined section side of the longitudinal ribs (81) of the cover beam, and the transverse supporting ribs (90) are in contact with the boundary of the inclined section and the vertical section of the longitudinal ribs (81) of the cover beam.

Step 4), rolling a steel plate to form a jig frame support column (32), arranging 1-2 rows of longitudinal rib limiting side plates (36) on the side wall of the jig frame support column (32) facing the direction of the cover beam reinforcement cage (44), and arranging a column side sliding groove (40) on the side wall vertical to the cover beam reinforcement cage (44); the plane of the column side chute (40) is in a T shape; the longitudinal rib limiting side plates (36) and the longitudinal rib limiting bottom plate (33) are formed by rolling steel plates, longitudinal rib limiting grooves (37) with the same distance with the bent cap longitudinal ribs (81) are formed in the longitudinal rib limiting side plates, and the width of the longitudinal rib limiting grooves (37) is 2-5 mm larger than the diameter of the bent cap longitudinal ribs (81); the cross section of the connecting sliding plate (38) is L-shaped, 2-3 rows of stirrup limiting plates (41) are arranged on the connecting sliding plate, and the stirrup limiting plates (41) are vertically welded with the connecting sliding plate (38); the stirrup limiting plate (41) is formed by rolling a steel plate, a stirrup limiting groove (42) with the same distance with the bent cap stirrup (43) is formed in the stirrup limiting plate, and the width of the stirrup limiting groove (42) is 2-3 mm larger than the diameter of the bent cap longitudinal rib (81).

Step 5), rolling a fixed baffle (50) by adopting a steel plate, and arranging a position control bolt (51) connected with a pushing position control screw rod (49) on the fixed baffle; the baffle limiting body (52) is formed by rolling a steel plate, the cross section of the baffle limiting body is U-shaped, the bottom ends of two transverse plates of the baffle limiting body (52) are vertically welded with the pushing baffle (47), and a screw penetrating hole (95) for the pushing position control screw (49) to penetrate is formed in a vertical plate of the baffle limiting body (52); the fixed slide rail (48) and the movable slide rail (46) are both formed by rolling steel plates, slide rail lugs (92) are arranged on the side faces, facing the fixed slide rail (48), of the movable slide rail (46), fixed ear grooves (93) connected with the slide rail lugs (92) are arranged on the fixed slide rail (48), and the height of each fixed ear groove (93) is 2-3 cm greater than that of each slide rail lug (92); the pushing position control screw (49) is formed by rolling a screw, and a pull-back baffle (94) is arranged at the end inserted into the baffle limiting body (52); the pull-back baffle (94) is formed by rolling a steel plate, and the width of the pull-back baffle is 2-4 cm larger than that of the screw passing hole (95); the pushing baffle (47) is formed by rolling a steel plate, a baffle limiting body (52) and a screw connecting groove (96) are arranged on the side wall facing the fixed baffle (50), the screw connecting groove (96) is connected with the pushing position-controlling screw (49), and the inner diameter of the screw connecting groove (96) is 5-10 mm larger than that of the pushing position-controlling screw (49); the capping beam template (53) comprises a first capping beam template (54) and a second capping beam template (55) which are rolled by steel plates or aluminum alloys, and a template joint step (97) and a joint closing body (58) are arranged at the joint of the first capping beam template (54) and the second capping beam template (55); the width of the template joint step (97) is 5-10 cm, and the joint sealing body (58) adopts a water-swelling water stop strip; one end of the position control body bolt (57) is vertically welded with the fixed slide rail (48), and the other end of the position control body bolt passes through a connecting hole on the lifting position control body (56); the cross section of the lifting control body (56) is L-shaped, different thicknesses can be adopted according to elevation adjustment requirements, the minimum thickness is 1cm, and the maximum thickness is 3 cm.

Step 6), rolling a support column base hoop plate (60) by adopting a steel plate, arranging one support column base hoop plate on the upper surface and one lower surface of a template support beam (45), vertically welding the support column base hoop plate (60) on the upper surface of the template support beam (45) with a filling support column (59), and arranging a hole for a base hoop fastening bolt (61) to penetrate through on the support column base hoop plate (60); the pouring sliding beam (62) is formed by rolling a steel plate, the cross section of the pouring sliding beam is U-shaped, the upper surface of the pouring sliding beam is provided with a roller limiting groove (99) connected with the shifting roller (65), and the bottom of the roller limiting groove (99) is provided with an in-beam sliding groove (100) along the length direction of the roller limiting groove (99); the surface strickling device (77) and the surface vibration device (78) are positioned on the side which is far away from the flexible perfusion tube (72) and the distance between the surface vibration device (78) and the flexible perfusion tube (72) is smaller than that between the surface strickling device (77); the surface leveling device (77) comprises a vertical leveling plate (101) and a transverse leveling plate (102), wherein the vertical leveling plate (101) and the transverse leveling plate (102) are vertically welded and connected, and the bottom end of the vertical leveling plate (101) is the same as the plate bottom elevation of the transverse leveling plate (102); the vertical scraping plate (101) is formed by rolling a steel plate, and is provided with a residual material recovery hole (103) and a cutting edge (104) vertical to the cover beam concrete (109); the transverse scraping plate (102) is made of a steel plate, is vertically welded with the scraping plate positioning bolt (79), and is provided with a residual material recovery box (105) communicated with the residual material recovery hole (103); the surface vibrating device (78) comprises a vibrating flat base plate (106) and a surface vibrator (107), wherein the surface vibrator (107) is arranged on the upper surface of the vibrating flat base plate (106) and enables the vibrating flat base plate (106) to be vertically welded and connected with a vibrating plate positioning bolt (80); the vibration plate positioning bolt (80) and the scraping plate positioning bolt (79) are formed by screw rolling, and a damping connecting body (108) is arranged at the lower part of the vibration plate positioning bolt (80); the positioning inner pipe (74) and the fixed outer pipe (66) are both formed by rolling steel pipes, the positioning inner pipe (74) is provided with a spring support tenon (75), and the spring support tenons (75) with mirror images opposite to each other are connected through tenon spring expansion ribs (98); the tenon elastic expansion rib (98) is arranged in the tube cavity of the positioning inner tube (74), and the elastic support tenon (75) extends out of a reserved hole on the tube wall of the fixed outer tube (66); a pipe wall positioning hole (110) which is connected with the spring support tenon (75) is arranged on the pipe wall of the fixed outer pipe (66); the damping connector (108) and the tenon elastic expansion rib (98) are formed by spring rolling

The pier stud reinforcement cage (1) is formed by binding a longitudinal reinforcement with the diameter of 25mm and a transverse stirrup with the diameter of 10 mm. The built-in annular plate (2) is formed by rolling a steel plate with the thickness of 10mm, and 4 annular plate connecting bolts (82) connected with the hoop connecting bolts (9) are uniformly arranged on the upper edge of the built-in annular plate at intervals and with the height of 6 cm; the inner diameter of the hoop connecting bolt (9) is 30 mm; the ring plate connecting bolt (82) adopts a high-strength screw rod connected with the hoop connecting bolt (9). The ring plate sleeve plate (3) is made of a plastic plate with the height of 6cm, is stuck and connected with the built-in ring plate (2), and the outer surface of the ring plate sleeve plate is connected with pier column concrete (4)) The surface of the pier stud is flush, and the pier stud concrete (4) adopts concrete with the strength grade of C50. The height of the hoop connecting groove (5) is 6cm and is circular. The upper-layer hoop (6) and the lower-layer hoop (7) comprise two hoop plates (10) with the same plane shape, and the inner section size of the two hoop plates (10) after being connected through the hoop ear plates (83) and the hoop plate fastening bolts (11) is the same as the outer section size of the pier stud concrete (4). The hoop plate fastening bolt (11) is composed of a high-strength screw rod with the diameter of 30mm and a bolt, and the hoop plate (10) and the hoop ear plate (83) are integrally rolled by steel plates with the thickness of 10 mm. The embedded arc plate (8) is formed by rolling a steel plate with the thickness of 10mm, the cross section of the embedded arc plate is arc-shaped, the central angle of the embedded arc plate is 120 degrees, and the embedded arc plate is welded and connected with the hoop plate (10) of the hoop. The outer side wall of the hoop plate (10) is provided with a hoop side ear plate (12) vertically welded with the hoop plate, an ear plate inclined strut (84) is arranged between the hoop side ear plate (12) and the hoop ear plate (83), the ear plate inclined strut (84) is formed by rolling a steel pipe with the diameter of 60mm, and two ends of the ear plate inclined strut are respectively welded with the hoop side ear plate (12) and the hoop plate (10); the hoop side ear plates (12) are formed by rolling steel plates with the thickness of 10mm, and holes connected with the support rods (13) between the plates are formed in the hoop side ear plates. The inter-plate stay bar (13) is made of a steel pipe with the diameter of 100mm, one end of the inter-plate stay bar is vertically welded and connected with a hoop side ear plate (12) on the outer side of the lower-layer hoop (7), and the other end of the inter-plate stay bar is provided with a connecting thread and is fixed through a stay bar position adjusting bolt (14). Screw hole parameters of the stay bar positioning bolts (14) are matched with the stay bars (13) between the plates, and one stay bar positioning bolt is arranged on each of the upper surface and the lower surface of the hoop side ear plate (12). The supporting platform plate (15) is formed by rolling a steel plate with the thickness of 10mm and is arranged at the top end of the platform support column (17). The supporting column position control beam (16) is made of a channel steel material with the specification of 32b and is connected with the platform supporting column (17) in a welding mode. The hoop connecting rib (19) comprises a screw rod with the diameter of 20mm and a bolt, the fastening directions of the screw rods on the two sides of the bolt are opposite, and the screw rods on the two sides of the bolt are respectively and vertically welded and connected with the strut hoop (18) on the outer side of the adjacent platform strut (17). The platform support column (17) adopts a strength grade of Q345D and a specification of

The brace hoop (18) is rolled by a steel plate with the thickness of 2mm, the inner diameter of the brace hoop is 10mm larger than the outer diameter of the platform brace (17),the inner side wall is provided with a rubber strip. The support plate rotating hinge (20) adopts a stainless steel hinge with the diameter of phi 14 multiplied by 3.0, the length of 127m and the width of 89 mm. The longitudinal rib fastening body (21) comprises two fastening clamp plates (85) with the same shape, the fastening clamp plates (85) are formed by rolling steel plates with the thickness of 10mm, longitudinal rib arc grooves (86) and holes connected with clamp plate fastening bolts (91) are formed in the fastening clamp plates (85), the longitudinal rib arc grooves (86) are arc-shaped, and the diameter of each longitudinal rib arc groove is the same as the outer diameter of a longitudinal rib (81) of the cover beam; the clamp plate fastening bolt (91) is formed by combining a screw rod with the diameter of 20mm and a bolt. The longitudinal ribs (81) of the cover beam adopt threaded ribbed steel bars with the diameter of 32 mm. The binding tire plates (22) are formed by rolling steel plates with the thickness of 2 mm. First regulation body (23) and second regulation body (25) all include two regulation body vaulting poles (87) and two regulation body limiting plates (88) to make the one end of regulation body vaulting pole (87) and adjust body limiting plate (88) perpendicular welded connection, the other end sets up regulation body pivot (26), sets up pressure adjustment body (89) between two relative regulation body limiting plates of mirror image (88). The adjusting body rotary hinge (26) adopts a universal ball hinge with the diameter of 60 mm; the adjusting body support rod (87) is made of a steel pipe with the diameter of 60mm, the adjusting body limiting plate (88) is formed by rolling a steel plate with the thickness of 10mm, and a channel connected with the pressure adjusting body (89) is arranged on the adjusting body limiting plate; the pressure adjusting body (89) adopts a hydraulic jack with the maximum pressure of 10 tons. The rotary supporting plate (24) is formed by rolling a steel plate with the thickness of 2mm and is connected with the supporting plate rotating hinge (20) in a welding mode. The supporting rib positioning beam (27) is made of H-shaped steel with the specification of 100 multiplied by 6 multiplied by 8, and two parallel beams are arranged. Set up vertical brace (28) between the brace locating beam, set up horizontal brace (90) towards bent cap longitudinal rib (81) slope section side on the lateral wall of vertical brace (28), vertical brace (28) and horizontal brace (90) all adopt thickness to be 10 mm's steel sheet rolling and form. The positioning angle brace (29) is rolled into an L shape by adopting a steel plate with the thickness of 10 mm; the angle support position control bolt (30) is made of a high-strength screw rod with the diameter of 30 mm. The bed-jig bottom plate (31) is formed by rolling a steel plate with the thickness of 10 mm. The jig frame support column (32) is formed by rolling a steel plate with the thickness of 2mm, the cross section of the jig frame support column is rectangular, 2 rows of longitudinal rib limiting side plates (36) are arranged on the side wall of the jig frame support column (32) facing to the direction of the cover beam steel reinforcement cage (44), a column side sliding groove (40) is arranged on the side wall vertical to the cover beam steel reinforcement cage (44), the diameter of the cover beam steel reinforcement cage (44) is consistent with that of the cover beam, and the column isThe plane of the side sliding groove (40) is in a T shape and is connected with the sliding plate hanging plate (39) and the connecting sliding plate (38). The bottom plate supporting plate (34) is formed by rolling a steel plate with the thickness of 2 mm. The bottom plate connecting bolt (35) is made of a high-strength screw rod and a bolt with the diameter of 20 mm. The longitudinal rib limiting side plate (36) and the longitudinal rib limiting bottom plate (33) are both made of screws and high-strength screws with the bolt diameter being 30mm, and are provided with longitudinal rib limiting grooves (37) with the same distance with the capping beam longitudinal ribs (81), and the width of each longitudinal rib limiting groove (37) is 5mm larger than the diameter of each capping beam longitudinal rib (81). The cross section of the connecting sliding plate (38) is L-shaped, the connecting sliding plate is formed by rolling a steel plate with the thickness of 10mm, 3 rows of stirrup limiting plates (41) are arranged on the connecting sliding plate, and the stirrup limiting plates (41) are vertically welded with the connecting sliding plate (38). The skateboard hanging plate (39) is formed by rolling a steel plate with the thickness of 10mm and the width of 5 cm. The stirrup limiting plate (41) is formed by rolling a steel plate with the thickness of 10mm, a stirrup limiting groove (42) with the same interval as the bent cap stirrup (43) is formed in the stirrup limiting plate, and the width of the stirrup limiting groove (42) is 3mm larger than the diameter of the bent cap longitudinal rib (81). The bent cap hooping (43) adopts a threaded ribbed steel bar with the diameter of 10 mm. The template support beam (45) adopts H-shaped steel with the specification of 200 multiplied by 8 multiplied by 12. The movable sliding rail (46) is formed by rolling a steel plate with the thickness of 2mm, the cross section of the movable sliding rail (46) is in a cross shape, sliding rail lugs (92) are arranged on the side face, facing the fixed sliding rail (48), of the movable sliding rail (46), and the width and the height of each sliding rail lug (92) are 6 cm. Pass baffle (47) and adopt the steel sheet rolling that thickness is 10mm to form, set up baffle spacing body (52) and screw rod spread groove (96) on the lateral wall towards fixed stop (50) to make screw rod spread groove (96) be connected with passing accuse position screw rod (49), screw rod spread groove (96) adopt the steel sheet rolling that thickness is 2mm to form, the internal diameter is more than passing accuse position screw rod (49) big 10mm, highly is 3 cm. Fixed slide rail (48) adopt the steel sheet rolling that thickness is 2mm to form, set up fixed ear groove (93) of being connected with slide rail ear falcon (92) on fixed slide rail (48) to make the height and the width of fixed ear groove (93) than slide rail ear falcon (92) be 9 cm. Pass accuse position screw rod (49) and adopt diameter 30 mm's high strength screw rod and bolt to constitute, insert baffle spacing body (52) end and set up pull-back baffle (94), pull-back baffle (94) adopt thickness to form for 2 mm's steel sheet rolling, and the width is greater than the screw rod and passes 2cm big through hole (95), with pass accuse position screw rod (49) welded connection. FixingThe baffle (50) is formed by rolling a steel plate with the thickness of 10mm, a position control bolt (51) connected with the pushing position control screw rod (49) is arranged on the baffle, and the position control bolt (51) is a high-strength screw rod with the diameter of 30 mm. The spacing body of baffle (52) adopts thickness to form for 2 mm's steel sheet rolling, and the cross section is "U" shape, and the bottom of two horizontal boards of the spacing body of baffle (52) and the perpendicular welded connection of lapse baffle (47), set up the screw rod that supplies lapse accuse position screw rod (49) to pass on the vertical board of the spacing body of baffle (52) and pass hole (95), and the screw rod passes hole (95) diameter and is 40 mm. The capping beam template (53) comprises a first capping beam template (54) and a second capping beam template (55) which are rolled by adopting aluminum alloy plates with the thickness of 4mm, and a template joint step (97) and a joint closing body (58) are arranged at the joint of the first capping beam template (54) and the second capping beam template (55); the seam sealing body (58) adopts a water-swelling water stop strip with the thickness of 1 mm; the width of the template joint step (97) is 5cm, and the height is 2 mm. The cross section of the lifting control body (56) is L-shaped, different thicknesses can be adopted according to elevation adjustment requirements, the minimum thickness is 1cm, and the maximum thickness is 3 cm. The position control body bolt (57) is composed of a high-strength screw rod with the diameter of 30mm and a bolt, one end of the high-strength screw rod is vertically welded with the fixed slide rail (48), and the other end of the high-strength screw rod is fastened and position controlled through the bolt after penetrating through a connecting hole in the lifting position control body (56). The pouring support columns (59) are formed by rolling H-shaped steel with the specification of 300 multiplied by 10 multiplied by 15, and 4 capping beam templates (53) are arranged on the periphery. Prop post base hoop board (60) and adopt the steel sheet rolling that thickness is 2mm to form, prop the upper surface and the lower surface of roof beam (45) at the template and respectively set up one to make the template prop post base hoop board (60) and the perpendicular welded connection of pouring into prop post (59) of roof beam (45) upper surface, set up the hole that supplies base hoop anchorage (61) to wear to establish on propping post base hoop board (60), base hoop anchorage (61) adopt diameter 30 mm's high strength screw rod and bolt to constitute. The pouring sliding beam (62) is formed by rolling a steel plate with the thickness of 10mm, the lower surface of the pouring sliding beam is vertically welded with the pouring support column (59), the cross section of the pouring sliding beam is U-shaped, the upper surface of the pouring sliding beam is provided with a roller limiting groove (99) connected with the shifting roller (65), and the width of the roller limiting groove (99) is 500 mm; the bottom of the roller limiting groove (99) is provided with an in-beam sliding groove (100) along the length direction of the roller limiting groove (99), and the width of the in-beam sliding groove (100) is 250 mm; the shifting roller (65) adopts a 6-inch stainless steel rotating wheel. Horizontal barA5-ton wire rope hoist is used for the winding and pulling machine (63). The shifting platform plate (64), the shifting connecting plate (67) and the hopper positioning plate (68) are all formed by rolling steel plates with the thickness of 10 mm. The concrete hopper (69) is formed by rolling a steel plate with the thickness of 2mm and the volume of the concrete hopper is 2m³. The rigid connecting pipe (70) adopts a steel pipe with the inner diameter of 200 mm. The perfusion connecting pipe (71) is a rubber pipe with the diameter of 200mm and is bound and connected with the rigid connecting pipe (70); the flexible perfusion tube (72) adopts a rubber tube with the diameter of 200 mm. The rolling and pulling position control cable (73) adopts a steel wire rope with the diameter of 20 mm. The positioning inner pipe (74) and the fixed outer pipe (66) are respectively formed by rolling steel pipes with the diameters of 60mm and 90mm, the positioning inner pipe (74) is provided with a spring support tenon (75), and the spring support tenons (75) with opposite mirror images are connected through tenon spring expansion ribs (98); the tenon elastic expansion rib (98) is arranged in a pipe cavity of the positioning inner pipe (74), the elastic support tenon (75) extends out of a reserved hole in the pipe wall of the fixed outer pipe (66), and a pipe wall positioning hole (110) connected with the elastic support tenon (75) is formed in the pipe wall of the fixed outer pipe (66). Wherein, the spring support tenon (75) is rolled by a steel bar with the diameter of 1 cm; the tenon bullet expands muscle (98) and adopts the diameter to be 2 cm's spring, props tenon (75) welded connection with the bullet. The aperture of the pipe wall positioning hole (110) is 12 mm. The positioning bolt connecting plate (76) is formed by rolling a steel plate with the thickness of 10 mm. The surface scraping device (77) and the surface vibration device (78) are positioned on the side which is far away from the flexible perfusion tube (72) and the distance between the surface vibration device (78) and the flexible perfusion tube (72) is smaller than that between the surface scraping device (77) and the surface vibration device (78). The surface strickle device (77) comprises a vertical strickle (101) and a transverse strickle (102), wherein the vertical strickle (101) and the transverse strickle (102) are formed by rolling steel plates with the thickness of 10mm, and the bottom end of the vertical strickle (101) is equal to the plate bottom elevation of the transverse strickle (102); a vertical strickle (101) is provided with a residual material recovery hole (103) and a cutting edge (104) vertical to the cover beam concrete (109); the transverse scraping plate (102) is vertically welded with the scraping plate positioning bolt (79), and a residual material recovery box (105) communicated with the residual material recovery hole (103) is arranged on the transverse scraping plate. The cross section of the excess material recovery hole (103) is circular, and the diameter is 20 cm; the cutting edge (104) is in a right triangle shape, and the acute angle is 45 degrees; the excess material recovery box (105) is formed by rolling iron sheet with the thickness of 0.2mm and the volume of 0.5m³. Capping beamThe concrete (109) is a concrete with a strength grade of C50. The surface vibration device (78) comprises a vibrating flat panel (106) and a surface vibrator (107), wherein the surface vibrator (107) is arranged on the upper surface of the vibrating flat panel (106) and enables the vibrating flat panel (106) to be vertically welded and connected with a vibrating plate positioning bolt (80). The vibrating flat base plate (106) is formed by rolling a steel plate with the thickness of 2mm, and the surface vibrator (107) is an attached vibrator with the power of 1.5 KW. The vibration plate positioning bolt (80) and the scraping plate positioning bolt (79) are both formed by rolling high-strength screws with the diameters of 30mm, and a damping connecting body (108) is arranged at the lower part of the vibration plate positioning bolt (80). The damping connecting body (108) is formed by rolling a spring with the diameter of 30mm and is welded with the vibration plate positioning bolt (80).

The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as those of the present application, fall within the protection scope of the present invention.

Claims

1. The construction method of the bridge capping beam is characterized by comprising the following construction steps:

1) construction preparation: two built-in ring plates (2) are arranged on the outer side of the pier stud reinforcement cage (1); arranging an annular ring plate sleeve plate (3) on the outer side wall of the built-in ring plate (2), and pouring pier column concrete (4) in the pier column reinforcement cage (1) to prepare materials and devices required by construction;

2) erecting a formwork system: firstly chiseling a ring plate sleeve plate (3) on the outer side of a built-in ring plate (2) to form a hoop connecting groove (5), then respectively embedding embedded arc plates (8) of an upper layer hoop (6) and a lower layer hoop (7) into the hoop connecting groove (5), firmly connecting a hoop plate (10) with the built-in ring plate (2) through a hoop connecting bolt (9), and firmly connecting the hoop plate (10) with pier stud concrete (4) in a mirror image manner through a hoop plate fastening bolt (11); inter-plate stay bars (13) are respectively arranged between hoop side ear plates (12) at the outer sides of the upper-layer hoop (6) and the lower-layer hoop (7), and the connection strength of the inter-plate stay bars (13) and the hoop side ear plates (12) is controlled through stay bar positioning bolts (14) arranged between the inter-plate stay bars (13) and the hoop side ear plates (12); a support column position control beam (16) parallel to the support platform plate (15) is laid between the hoop side ear plates (12) with the same elevation, and the platform support column (17) is firmly connected with the support column position control beam (16); firstly, arranging a support column hoop (18) at the outer side of a platform support column (17), then adjusting the top surface elevation of the platform support column (17), then firmly connecting the support column hoop (18) at the outer side of the adjacent platform support column (17) through a hoop connecting rib (19), and finally placing a support platform plate (15) at the top end of the platform support column (17);

3) bending the longitudinal ribs of the bent cap beam: arranging rolled longitudinal ribs (81) of the bent cap beam into a row, arranging longitudinal rib fastening bodies (21) along the length direction of the longitudinal ribs (81) of the bent cap beam, and connecting the longitudinal ribs (81) of the bent cap beam together by the longitudinal rib fastening bodies (21); a first adjusting body (23) and a rotary supporting plate (24) are arranged on the binding tire plate (22), the binding tire plate (22) is connected with the rotary supporting plate (24) through a supporting plate rotating hinge (20), and a second adjusting body (25) is arranged on the rotary supporting plate (24); the first adjusting body (23) and the second adjusting body (25) are respectively connected with the longitudinal bar fastening body (21) on the inclined section and the vertical section of the longitudinal bar (81) of the bent cap through adjusting body rotating hinges (26); the method comprises the steps that firstly, longitudinal support ribs (28) on the lower surface of a support rib positioning beam (27) are connected with the starting points of the inclined sections of the bent cap longitudinal ribs (81), then, a first adjusting body (23) exerts jacking pressure on the bent cap longitudinal ribs (81), so that the inclined angles of the inclined sections of the bent cap longitudinal ribs (81) meet set requirements, then, a rotary supporting plate (24) is rotated to 45-60 degrees through a positioning angle support (29), and the positioning angle support (29) is firmly connected with a binding tire plate (22) through an angle support positioning bolt (30); after the other end of the second adjusting body (25) is connected with the rotary supporting plate (24) through the adjusting body hinge (26), the second adjusting body (25) applies jacking force to the vertical section of the vertical rib (81) of the bent cap, so that the inclination angle of the vertical section of the vertical rib (81) of the bent cap meets the set requirement;

4) and (3) binding a cover beam reinforcement cage: two rows of jig support columns (32) are symmetrically arranged on a jig base plate (31), a longitudinal rib limiting base plate (33) is arranged on the jig base plate (31), a base plate support plate (34) is arranged at the joint of the longitudinal rib limiting base plate (33) and the jig base plate (31), and the base plate support plate (34) is firmly connected with the jig base plate (31) by means of a base plate connecting bolt (35); after checking that the longitudinal rib limiting bottom plate (33) and the longitudinal rib limiting groove (37) of the longitudinal rib limiting side plate (36) are on the same longitudinal section, embedding the middle section of the longitudinal rib (81) of the bent cap into the longitudinal rib limiting groove (37) of the longitudinal rib limiting bottom plate (33), and embedding the vertical section of the longitudinal rib (81) of the bent cap into the longitudinal rib limiting groove (37) of the longitudinal rib limiting side plate (36); inserting a sliding plate hanging plate (39) connected with the end part of a sliding plate (38) into a column side sliding groove (40), enabling a stirrup limiting plate (41) to slide to a set height position in parallel with the column side sliding groove (40), limiting the position of a cover beam stirrup (43) through a stirrup limiting groove (42) on the stirrup limiting plate (41), and then binding and connecting the cover beam stirrup (43) with a cover beam longitudinal rib (81);

5) the bent cap template (53) is erected: firstly, a template supporting beam (45) is arranged on a supporting platform plate (15), then a movable sliding rail (46) is arranged on the template supporting beam (45), and a pushing baffle plate (47) opposite to a fixed baffle plate (50) is arranged on the movable sliding rail (46); two sides of each movable slide rail (46) are respectively provided with a fixed slide rail (48), and a pushing position control screw rod (49) penetrates through a position control bolt (51) on a fixed baffle (50) and then is inserted into a baffle limiting body (52); the lower surfaces of a first cover beam template (54) and a second cover beam template (55) of the cover beam template (53) are respectively connected with the upper surface of the movable slide rail (46); the movable slide rail (46) together with a first cover beam template (54) and a second cover beam template (55) on the upper surface of the movable slide rail are pressed to a designed position through a pushing position control screw rod (49); inserting a lifting control body (56) into a gap between the first cover beam template (54) and the second cover beam template (55) and the fixed slide rail (48), and limiting the position of the lifting control body (56) through a control body bolt (57); arranging a seam closing body (58) at the seam of the first cover beam template (54) and the second cover beam template (55);

6) pouring the cover beam concrete (109): sliding the cover beam template (53) to a set position, and hoisting the cover beam reinforcement cage (44) into the cover beam template (53); the bottom end of the pouring support column (59) is connected with the template support beam (45) through a support column bottom hoop plate (60) and a bottom hoop fastening bolt (61); a pouring sliding beam (62) is arranged at the top end of the pouring support column (59), and two transverse rolling machines (63) are respectively arranged at two ends of the pouring sliding beam (62); a shifting roller (65) and a fixed outer tube (66) are arranged on the lower surface of a shifting platform plate (64), shifting connecting plates (67) are arranged on the upper surface, and a hopper positioning plate (68) is arranged between the shifting connecting plates (67) which are opposite in a mirror image manner; after the concrete hopper (69) is firmly connected with the displacement connecting plate (67) through the hopper positioning plate (68), a rigid connecting pipe (70) and a pouring connecting pipe (71) are sequentially arranged at the bottom end of the concrete hopper (69), the pouring connecting pipe (71) is communicated with a flexible pouring pipe (72), and pouring construction of the cover beam concrete (109) is carried out through the flexible pouring pipe (72); one end of the rolling and pulling position control cable (73) is connected with the shifting connecting plate (67), and the other end is connected with the transverse rolling and pulling machine (63); inserting the top end of the positioning inner tube (74) into the fixed outer tube (66), and controlling the height of the positioning inner tube (74) in the fixed outer tube (66) through a spring support tenon (75); the bottom end of the positioning inner tube (74) is provided with a positioning bolt connecting plate (76), the lower part of the positioning bolt connecting plate (76) is provided with a surface strickle device (77) and a surface vibration device (78), and the positioning bolt connecting plate (76), the surface strickle device (77) and the surface vibration device (78) are respectively and firmly connected through a strickle positioning bolt (79) and a vibration plate positioning bolt (80).

2. The construction method of the bridge capping beam according to claim 1, wherein: step 1), uniformly arranging 3-6 ring plate connecting bolts (82) connected with the hoop connecting bolts (9) on the built-in ring plate (2) at intervals along a ring shape; the ring plate sleeve plate (3) is connected with the built-in ring plate (2) in an adhering mode, and the outer surface of the ring plate sleeve plate is flush with the surface of the pier stud concrete (4).

3. The construction method of the bridge capping beam according to claim 1, wherein: step 2), the upper-layer hoop (6) and the lower-layer hoop (7) both comprise two hoop plate hoops (10) with the same plane shape, and the size of the inner section of the two hoop plate hoops (10) after being connected through the hoop ear plates (83) and the hoop plate fastening bolts (11) is the same as that of the outer section of the pier stud concrete (4); a hoop side ear plate (12) vertically welded and connected with the hoop side ear plate is arranged on the outer side wall of the hoop plate (10), and an ear plate inclined strut (84) is arranged between the hoop side ear plate (12) and the hoop ear plate (83); holes connected with the inter-plate support rods (13) are formed in the hoop side ear plates (12); the support column position control beam (16) is vertically welded with the platform support column (17); the hoop connecting rib (19) comprises a screw rod and a bolt, the fastening directions of the screw rods on the two sides of the bolt are opposite, and the screw rods on the two sides of the bolt are respectively and vertically welded and connected with the support column hoop (18) on the outer side of the adjacent platform support column (17).

4. The construction method of the bridge capping beam according to claim 1, wherein: step 3), arranging 1 set of longitudinal bar fastening bodies (21) in the middle of the longitudinal bars (81) of the bent cap, and respectively arranging 2 sets of longitudinal bars (81) of the bent cap in the inclined section and 2 sets of longitudinal bars in the vertical section; the longitudinal rib fastening body (21) comprises two fastening clamp plates (85) with the same shape, and a longitudinal rib arc groove (86) and a hole connected with a clamp plate fastening bolt (91) are arranged on the fastening clamp plates (85); the longitudinal rib arc groove (86) is arc-shaped, and the diameter of the longitudinal rib arc groove is the same as the outer diameter of the longitudinal rib (81) of the cover beam; the first adjusting body (23) and the second adjusting body (25) respectively comprise two adjusting body support rods (87) and two adjusting body limiting plates (88), one end of each adjusting body support rod (87) is vertically welded with the corresponding adjusting body limiting plate (88), the other end of each adjusting body support rod is provided with an adjusting body rotating hinge (26), and a pressure adjusting body (89) is arranged between the two adjusting body limiting plates (88) which are opposite in mirror image; and a transverse supporting rib (90) is arranged on the side wall of the longitudinal supporting rib (28) facing the inclined section side of the longitudinal rib (81) of the cover beam, and the transverse supporting rib (90) is in contact with the boundary of the inclined section and the vertical section of the longitudinal rib (81) of the cover beam.

5. The bridge capping beam and the construction method according to claim 1, wherein: in the step 4), 1-2 rows of longitudinal rib limiting side plates (36) are arranged on the side wall of the jig frame support column (32) facing the direction of the cover beam reinforcement cage (44), and a column side sliding groove (40) is arranged on the side wall vertical to the cover beam reinforcement cage (44); the plane of the column side chute (40) is in a T shape; longitudinal rib limiting grooves (37) with the same distance with the longitudinal ribs (81) of the cover beam are formed in the longitudinal rib limiting side plates (36) and the longitudinal rib limiting bottom plate (33), and the width of each longitudinal rib limiting groove (37) is larger than the diameter of each longitudinal rib (81) of the cover beam; the cross section of the connecting sliding plate (38) is L-shaped, 2-3 rows of stirrup limiting plates (41) are arranged on the connecting sliding plate, and the stirrup limiting plates (41) are vertically welded with the connecting sliding plate (38); the stirrup limiting plate (41) is provided with a stirrup limiting groove (42) with the same distance with the bent cap stirrup (43), and the width of the stirrup limiting groove (42) is larger than the diameter of the bent cap longitudinal rib (81).

6. The construction method of the bridge capping beam according to claim 1, wherein: step 5), arranging a position control bolt (51) connected with the pushing position control screw rod (49) on the fixed baffle (50); the transverse section of the baffle limiting body (52) is U-shaped, the bottom ends of two transverse plates of the baffle limiting body (52) are vertically welded with the pushing baffle (47), and a vertical plate of the baffle limiting body (52) is provided with a screw penetrating hole (95) for the pushing position control screw (49) to penetrate through; the side surface of the movable slide rail (46) facing the fixed slide rail (48) is provided with slide rail lugs (92), the fixed slide rail (48) is provided with fixed lug grooves (93) connected with the slide rail lugs (92), and the height of the fixed lug grooves (93) is larger than that of the slide rail lugs (92); a pull-back baffle (94) is arranged at the end of the insertion baffle limiting body (52); the width of the pull-back baffle (94) is larger than that of the screw rod through hole (95); a baffle limiting body (52) and a screw connecting groove (96) are arranged on the side wall of the pushing baffle (47) facing the fixed baffle (50), the screw connecting groove (96) is connected with the pushing position-controlling screw (49), and the inner diameter of the screw connecting groove (96) is larger than that of the pushing position-controlling screw (49); the bent cap template (53) comprises a first bent cap template (54) and a second bent cap template (55), a template joint step (97) and a joint closing body (58) are arranged at the joint of the first bent cap template (54) and the second bent cap template (55), one end of a position control body bolt (57) is vertically welded with the fixed slide rail (48), and the other end of the position control body bolt penetrates through a connecting hole in the lifting position control body (56); the lifting control body (56) has an L-shaped cross section.

7. The construction method of the bridge capping beam according to claim 1, wherein: step 6), arranging a support column bottom hoop plate (60) on the upper surface and the lower surface of the template support beam (45) respectively, enabling the support column bottom hoop plate (60) on the upper surface of the template support beam (45) to be vertically welded and connected with a filling support column (59), and arranging a hole for a bottom hoop fastening bolt (61) to penetrate through on the support column bottom hoop plate (60); the cross section of the pouring sliding beam (62) is U-shaped, the upper surface of the pouring sliding beam is provided with a roller limiting groove (99) connected with the shifting roller (65), and the bottom of the roller limiting groove (99) is provided with an in-beam sliding groove (100) along the length direction of the roller limiting groove (99); the surface strickling device (77) and the surface vibration device (78) are positioned on the side which is far away from the flexible perfusion tube (72) and the distance between the surface vibration device (78) and the flexible perfusion tube (72) is smaller than that between the surface strickling device (77); the surface leveling device (77) comprises a vertical leveling plate (101) and a transverse leveling plate (102), wherein the vertical leveling plate (101) and the transverse leveling plate (102) are vertically welded and connected, and the bottom end of the vertical leveling plate (101) is the same as the plate bottom elevation of the transverse leveling plate (102); the vertical scraping plate (101) is formed by rolling a steel plate, and is provided with a residual material recovery hole (103) and a cutting edge (104) vertical to the cover beam concrete (109); the transverse scraping plate (102) is vertically welded with the scraping plate positioning bolt (79), and a residual material recovery box (105) communicated with the residual material recovery hole (103) is arranged on the transverse scraping plate; the surface vibrating device (78) comprises a vibrating flat base plate (106) and a surface vibrator (107), wherein the surface vibrator (107) is arranged on the upper surface of the vibrating flat base plate (106) and enables the vibrating flat base plate (106) to be vertically welded and connected with a vibrating plate positioning bolt (80); the vibration plate positioning bolt (80) and the scraping plate positioning bolt (79) are formed by screw rolling, and a damping connecting body (108) is arranged at the lower part of the vibration plate positioning bolt (80); a bullet support tenon (75) is arranged on the positioning inner pipe (74), and the bullet support tenons (75) which are opposite in mirror image are connected through tenon bullet expansion ribs (98); the tenon elastic expansion rib (98) is arranged in the tube cavity of the positioning inner tube (74), and the elastic support tenon (75) extends out of a reserved hole on the tube wall of the fixed outer tube (66); the pipe wall of the fixed outer pipe (66) is provided with a pipe wall positioning hole (110) which is connected with the spring support tenon (75) in the axial direction.

8. A bridge capping beam constructed according to the method of constructing a bridge capping beam as claimed in any one of claims 1 to 7.