CN211872655U

CN211872655U - Pi-shaped steel mixed combination bridge unit construction mold

Info

Publication number: CN211872655U
Application number: CN202020292293.6U
Authority: CN
Inventors: 郑力之; 周建生; 张斌峰; 雷传瑜; 刘建宇; 邱睿; 蒋田勇; 方鳞
Original assignee: Zhongnan Construction Group Co ltd; Changsha University of Science and Technology
Current assignee: Zhongnan Construction Group Co ltd; Changsha University of Science and Technology
Priority date: 2020-03-10
Filing date: 2020-03-10
Publication date: 2020-11-06
Anticipated expiration: 2030-03-10

Abstract

The utility model discloses a pi shaped steel mixes combination bridge unit construction mould, including first support and two second supports of demountable installation on the ground, two second supports are located the first support along the both sides of bridge transverse direction respectively, two I shaped steel roof beams are located respectively between corresponding second support and the first support; the top of the first support is provided with a first bottom template, the top of the second support is provided with a second bottom template, the first bottom template and the second bottom template are respectively connected with a top plate of the I-shaped steel beam to form a pouring bottom template of the bridge deck unit, pouring side plates are arranged around the pouring bottom template, and the pouring bottom template and the pouring side plates enclose a pouring cavity forming the bridge deck unit. The construction mold is simple in structure, the support structure is strong in deformation resistance, the assembly is rapid, and the construction efficiency of the pi-shaped steel-concrete combined bridge can be greatly improved.

Description

Pi-shaped steel mixed combination bridge unit construction mold

Technical Field

The utility model relates to a bridge construction technical field especially relates to a pi shaped steel mixes combination bridge unit construction mould.

Background

The novel assembly type pi-shaped steel concrete composite beam is a novel beam structure developed on the basis of a steel structure and a reinforced concrete structure, two rib parts of the novel beam structure adopt I-shaped steel beams, a bridge deck adopts reinforced concrete slabs, the I-shaped steel beams comprise top plates, bottom plates and connecting plates connected between the top plates and the bottom plates, and the I-shaped steel beams and wing plates are connected through shear connectors to form a structural member which is integrally and jointly bent. The two materials are combined in a superimposed structural form, the formed structure has high rigidity, high strength and good ductility, the material performance advantages of steel tensile strength and concrete compression resistance can be fully exerted, and the material performance disadvantages are avoided.

In order to conveniently manufacture the novel combined beam, the bracket and the template are indispensable. The existing bracket technology is only directed to the conventional composite beam, and the research on the novel composite beam is not excessive. Therefore, in order to facilitate the manufacture of the novel composite beam, it is important to design special supports and templates.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art not enough, provide a resistance to deformation, equipment swift, can improve bridge efficiency of construction's pi shaped steel thoughtlessly makes up bridge unit construction mould.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a pi-shaped steel mixed combination bridge unit construction mould comprises a first support and two second supports, wherein the first support and the two second supports are detachably mounted on a foundation, the two second supports are respectively arranged on two sides of the first support along the transverse direction of a bridge, and two I-shaped steel beams are respectively positioned between the corresponding second supports and the corresponding first supports; the bridge deck slab pouring device is characterized in that a first bottom formwork is arranged at the top of the first support, a second bottom formwork is arranged at the top of the second support, the first bottom formwork and the second bottom formwork are respectively connected with a top plate of the I-shaped steel beam to form a pouring bottom formwork of the bridge deck slab unit, pouring side plates are arranged around the pouring bottom formwork, and the pouring bottom formwork and the pouring side plates enclose a pouring cavity which forms the bridge deck slab unit.

The support structure in the construction mold has strong deformation resistance and higher rigidity, so that the deformation of the bridge deck in the pouring process can be controlled. The construction mold is simple in structure, fast to assemble and convenient to use, and the construction efficiency of the pi-shaped steel mixed composite bridge can be greatly improved.

As a further improvement of the above technical solution:

for cooperating with the bridge structures, first die plate slopes downwards respectively along the both sides tip downward sloping of bridge transverse direction and forms the first hang plate with corresponding I shaped steel roof beam butt, and the second die plate slopes downwards towards the lateral end portion downward sloping of I shaped steel roof beam and forms the second hang plate with I shaped steel roof beam butt.

The bottom template is preferably a stainless steel panel to improve the surface smoothness of the beam body, which is beneficial to ensuring the quality and increasing the times of using the bottom template.

In order to transfer the force generated by the bridge deck to the lower bracket, the first bracket is connected to the first bottom form by a force transfer member, and the second bracket is connected to the second bottom form by a force transfer member.

The force transmission member comprises a plurality of first cross beams which are arranged at intervals along the longitudinal direction of the bridge.

The first support and the second support respectively comprise two frame nets arranged at intervals along the transverse direction of the bridge and a plurality of second cross beams connected between the two frame nets, and the second cross beams are arranged at intervals along the longitudinal direction of the bridge; the frame net comprises a plurality of stand columns which are arranged at intervals along the longitudinal direction of the bridge, and the stand columns are connected through longitudinal beams. The support is composed of beams which are connected in a longitudinal and transverse mode, and deformation resistance is high.

Two frame nets of first support still are connected with many type of falling V bracing, and the top of first crossbeam is located to the type of falling V bracing.

The top of the upright post and the top of the inverted V-shaped inclined strut are connected with the first cross beam through the steel plate with holes, so that the channel steel is connected conveniently.

The upright post is fixed in the foundation through a screw rod, and the screw rod is in threaded connection with the upright post.

And universal wheels are fixed at the bottoms of the second cross beams at the lowermost ends of the first support and the second support, so that the template is convenient to disassemble.

The side pouring plate comprises two end sealing plates and two comb plates, the two end sealing plates are respectively arranged at two ends of the bottom pouring template along the longitudinal direction of the bridge, the two comb plates are respectively arranged at two ends of the bottom pouring template along the transverse direction of the bridge, and holes for the embedded steel bars to stretch out of the pouring cavity are formed in the end sealing plates and the comb plates. The arrangement of the comb plate and the end sealing plate facilitates drainage and prevents slurry leakage, and smooth placement of the embedded steel bars is facilitated.

Compared with the prior art, the utility model has the advantages of:

1. simple structure, it is convenient to assemble, can improve pi shaped steel greatly and mix the efficiency of construction of combination bridge.

2. Reasonable in design, the support is vertically and horizontally linked by the structure roof beam, and the anti deformability is strong, has great rigidity for the decking deformation volume can be controlled at the in-process of pouring.

3. The bottom die adopts a stainless steel panel to improve the surface smoothness of the beam body, which is beneficial to ensuring the quality and increasing the times of reverse use.

4. The lower part of the cast-in-place support is provided with the universal wheel, so that the template is convenient to disassemble.

5. The special comb plate and the special end-sealing plate are arranged, so that water drainage is facilitated, slurry leakage can be prevented, and the steel bars can be smoothly placed.

6. Can be repeatedly used, is economical, saves time and maximizes the efficiency.

Drawings

Fig. 1 is a schematic front view structure diagram of a pi-shaped steel mixed combined bridge unit construction mold according to an embodiment of the present invention;

fig. 2 is a front view of the first support (mounting the first bottom form).

Fig. 3 is a side view of the first and second brackets.

Fig. 4 is a schematic top view of the first support (mounting the first bottom form).

Fig. 5 is a front view schematically showing the structure of the second bracket (mounting the second bottom form).

Fig. 6 is a schematic top view of the second support (mounting the second bottom form).

Fig. 7 is a schematic structural view of the end sealing plate.

Fig. 8 is a schematic structural view of the comb plate.

Illustration of the drawings: 1. a first bracket; 11. a second cross member; 12. a column; 13. a stringer; 14. an inverted V-shaped diagonal brace; 2. a second bracket; 3. a first bottom form; 31. a first inclined plate; 4. a second bottom form; 41. a second inclined plate; 5. a first cross member; 6. a steel plate with holes; 7. a screw rod; 8. a universal wheel; 9. pouring a side plate; 91. sealing the end plate; 92. a comb plate; 93. an aperture; 10. an I-shaped steel beam.

Detailed Description

The invention is further described below with reference to specific preferred embodiments, without thereby limiting the scope of protection of the invention.

Example 1:

as shown in fig. 1, the pi-shaped steel mixed composite bridge unit construction mold of the embodiment includes a first support 1 and two second supports 2 detachably mounted on a foundation, the two second supports 2 are respectively disposed on two sides of the first support 1 along a transverse direction of a bridge, two i-shaped steel beams 10 are respectively located between the corresponding second supports 2 and the first support 1, and a bottom plate 102 of the i-shaped steel beams 10 is fixed on a cement pedestal 20. The top of the first support 1 is provided with a first bottom formwork 3, the top of the second support 2 is provided with a second bottom formwork 4, the two side end portions of the first bottom formwork 3 in the transverse direction of the bridge are respectively inclined downwards to form first inclined plates 31 abutted to the top plate 101 of the corresponding I-shaped steel beam 10, and the side end portions of the second bottom formwork 4, facing the I-shaped steel beam 10, are inclined downwards to form second inclined plates 41 abutted to the top plate 101 of the I-shaped steel beam 10. The first bottom formwork 3, the first inclined plate 31, the second inclined plate 41, the second bottom formwork 4 and the top plate 101 of the two I-shaped steel beams 10 are spliced to form a pouring bottom formwork of the bridge deck unit. Pour and be equipped with around the die block board and pour curb plate 9, pour curb plate 9 and include two end plate 91 and two comb plates 92, two end plate 91 branch are located and are pour the both ends of die block board along the longitudinal direction of bridge, and two comb plates 92 branch are located and are pour the both ends of die block board along the horizontal direction of bridge, all set up on end plate 91 and the comb plate 92 and supply embedded reinforcement to stretch out the hole 93 of pouring the cavity. And the pouring bottom template and the pouring side plates 9 are enclosed to form a pouring cavity of the bridge deck unit. The end plate 91 is arranged at the beam end of the novel composite beam, is a detachable steel plate with a round hole, and can facilitate drainage and placement of the bridge deck steel bars.

As shown in fig. 2-6, the first holder 1 is connected to the first bottom form 3 by a force transmission member, and the second holder 2 is connected to the second bottom form 4 by a force transmission member. In this embodiment, the force transfer member includes a plurality of first beams 5, and the first beams 5 are double-buckled channel steel, which is a force transfer member for transferring the force generated by the deck slab to the lower bracket. In addition, single-buckle channel steel longitudinal beams are welded at the bottoms of the first bottom formwork 3 and the second bottom formwork 4 to serve as force transmission structures. The plurality of first cross beams 5 are arranged at intervals along the longitudinal direction of the bridge.

As shown in fig. 2-6, each of the first support 1 and the second support 2 includes two frame nets arranged at intervals along the transverse direction of the bridge, and a plurality of second beams 11 welded between the two frame nets, the second beams 11 are single-buckled channel steel, and the plurality of second beams 11 are arranged at intervals along the longitudinal direction of the bridge; the net rack comprises a plurality of upright columns 12 which are arranged at intervals along the longitudinal direction of the bridge, and the upright columns 12 are double-buckle channel steel and are main bearing structures. The multiple upright columns 12 are connected through the longitudinal beam 13 in a welding mode, the longitudinal beam 13 between every two adjacent upright columns 12 is provided with multiple longitudinal beams and is uniformly distributed from top to bottom, and the longitudinal beam 13 is also a single-buckle channel steel. The upright post 12 is fixed in the foundation through a screw rod 7, and the screw rod 7 is in threaded connection with the upright post 12. The bottom of the longitudinal beam 13 at the lowest end of the first bracket 1 and the second bracket 2 is provided with a detachable universal wheel 8. The lead screw 7 can adjust the height of the bracket. When the screw rod 7 is not fixed on the foundation, the screw rod 7 is screwed in, so that the detachable universal wheel 8 lands on the ground, and the support is convenient to move.

As shown in fig. 2, two frame nets of the first bracket 1 are further connected with a plurality of inverted V-shaped diagonal braces 14, the diagonal braces are formed by welding single-buckled channel steel, and the inverted V-shaped diagonal braces 14 are arranged above the first cross beam 5.

For the convenience of the connection of channel steel, the tops of the upright post 12 and the inverted V-shaped inclined strut 14 are connected with the first cross beam 5 through the steel plate 6 with holes. The upright post 12, the steel plate 6 with holes and the first beam 5/the inverted V-shaped inclined strut 14 are fixedly connected through bolts.

The beam slab bottom die requires a steel plate with the thickness of 5mm, and the side die adopts a shaping die set with the thickness of 6 mm. The assembling process of the pi-shaped steel-concrete combined bridge unit construction mould is as follows: and welding the combined steel bottom template, welding a first cross beam 5 and a longitudinal beam at the bottom of the bottom template, and then welding a perforated steel plate 6 at the corresponding position of the first cross beam 5. The upper bottom form and the lower support are connected by bolts at the perforated steel plate 6. The comb plates 92 on the side faces and the end sealing plates 91 at the two ends are installed well by bolts, so that a pouring cavity of the bridge deck plate unit is formed by enclosing the pouring bottom formwork and the pouring side plates.

The above description is only for the preferred embodiment of the present application and should not be taken as limiting the present application in any way, and although the present application has been disclosed in the preferred embodiment, it is not intended to limit the present application, and those skilled in the art should understand that they can make various changes and modifications within the technical scope of the present application without departing from the scope of the present application, and therefore all the changes and modifications can be made within the technical scope of the present application.

Claims

1. The pi-shaped steel mixed combination bridge unit construction mould is characterized by comprising a first support (1) and two second supports (2) which are detachably mounted on a foundation, wherein the two second supports (2) are respectively arranged on two sides of the first support (1) in the transverse direction of a bridge, and two I-shaped steel beams (10) are respectively positioned between the corresponding second supports (2) and the first supports (1); the top of first support (1) is equipped with first die block board (3), the top of second support (2) is equipped with second die block board (4), and first die block board (3), second die block board (4) link to each other in order to form the die block board of pouring of decking unit with the roof of I shaped steel roof beam (10) respectively, it is equipped with around the die block board to pour curb plate (9), pours the die block board and pours curb plate (9) and enclose the cavity of pouring that closes formation decking unit.

2. The pi-shaped steel concrete composite bridge unit construction mold as claimed in claim 1, wherein the first bottom mold plate (3) is inclined downward at both side ends in the transverse direction of the bridge to form first inclined plates (31) abutting against the corresponding i-shaped steel beams (10), respectively, and the second bottom mold plate (4) is inclined downward toward the side ends of the i-shaped steel beams (10) to form second inclined plates (41) abutting against the i-shaped steel beams (10).

3. The pi-shaped steel and concrete combined bridge unit construction mould as claimed in claim 1, wherein the first support (1) is connected with the first bottom formwork (3) through a force transmission component, and the second support (2) is connected with the second bottom formwork (4) through a force transmission component.

4. The pi-shaped steel and concrete combined bridge unit construction mould as claimed in claim 3, wherein the force transmission member comprises a plurality of first cross beams (5), and the plurality of first cross beams (5) are arranged at intervals along the longitudinal direction of the bridge.

5. The pi-shaped steel and concrete combined bridge unit construction mold as claimed in claim 4, wherein the first support (1) and the second support (2) each comprise two frame nets arranged at intervals in the transverse direction of the bridge, and a plurality of second cross beams (11) connected between the two frame nets, and the plurality of second cross beams (11) are arranged at intervals in the longitudinal direction of the bridge; the net comprises a plurality of upright posts (12) which are arranged at intervals along the longitudinal direction of the bridge, and the upright posts (12) are connected through longitudinal beams (13).

6. The pi-shaped steel and concrete combined bridge unit construction mold as claimed in claim 5, wherein two frame nets of the first support (1) are further connected with a plurality of inverted V-shaped inclined struts (14), and the inverted V-shaped inclined struts (14) are arranged above the first cross beam (5).

7. The pi-shaped steel and concrete combined bridge unit construction mold as claimed in claim 6, wherein the tops of the upright columns (12) and the inverted V-shaped inclined struts (14) are connected with the first cross beam (5) through steel plates (6) with holes.

8. The pi-shaped steel and concrete combined bridge unit construction mold as claimed in any one of claims 5-7, wherein the upright column (12) is fixed in the foundation through a screw rod (7), and the screw rod (7) is in threaded connection with the upright column (12).

9. The pi-shaped steel and concrete combined bridge unit construction mould as claimed in any one of claims 5-7, wherein universal wheels (8) are fixed at the bottoms of the second cross beams (11) at the lowest ends of the first support (1) and the second support (2).

10. The pi shaped steel mixes combination bridge unit construction mould of any one of claims 1-7, characterized in that, pour curb plate (9) including two end plate (91) and two comb plate (92), two end plate (91) branch are located and are pour the both ends of die block along the bridge longitudinal direction, two comb plate (92) branch are located and are pour the both ends of die block along the bridge transverse direction, all offer on end plate (91) and comb plate (92) and supply embedded reinforcement to stretch out the hole (93) of pouring the cavity.