Prefabricated structure for bridge engineering

Abstract

The utility model relates to the technical field of bridge engineering, in particular to a prefabricated structure for bridge engineering, which comprises a prestressed concrete prefabricated pile, a hoop is sleeved on the top of the surface of the prestressed concrete prefabricated pile, a connecting steel bar is welded on the inner wall of the hoop, and a cast-in-place cover beam is fixedly connected with the top of the hoop. Through the cooperation of the prestressed concrete precast pile, the hoop, the connecting reinforcing steel bar, the cast-in-place cover beam, the precast longitudinal beam, the precast bridge deck slab, the anti-seismic check block and the baffle, the prestressed concrete precast pile, the hoop, the connecting reinforcing steel bar, the cast-in-place cover beam, the precast longitudinal beam, the precast bridge deck slab, the anti-seismic check block and the baffle have the advantages that the construction pollution can be reduced, and the construction period is short; connecting steel bars are welded to the inner walls of the hoops, cast-in-place cover beams are poured on the tops of the hoops and the surfaces of the connecting steel bars, then prefabricated longitudinal beams are placed on the tops of the cast-in-place cover beams, and then the prefabricated bridge deck slabs are hoisted to the tops of the prefabricated longitudinal beams, so that assembly work is completed.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge engineering technical field, concretely is a kind of prefabricated structure for bridge engineering. BACKGROUND

[0002] Bridge engineering is an important branch of civil engineering, mainly studies and is engaged in the planning, design, construction, maintenance and management of bridge, aims to cross natural or artificial obstacles, provides safe, convenient passageway for pedestrians and vehicles etc.

[0003] Bridge engineering is built, due to the geological conditions of river bottom is usually more complex, there can be soft soil layer, quicksand layer or rock layer etc., to increase the construction difficulty and cost, and in bridge foundation construction process, such as bored pile construction, it will also produce a large amount of slurry waste water, containing a large amount of suspended solids, silt and chemical substances, to easily pollute water source, destroy river ecological balance.

[0004] To solve the above technical problem, for this we design a kind of prefabricated structure for bridge engineering. INVENTION CONTENTS

[0005] The utility model is to provide a kind of prefabricated structure for bridge engineering, with the advantages of being able to reduce construction pollution and short construction period, solve the problem that the existing bridge engineering in river construction process, construction difficulty is big, pollution is heavy and landscape effect is poor.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of prefabricated structure for bridge engineering, including prestressed concrete prefabricated pile, the top of the surface of prestressed concrete prefabricated pile is sleeved with hoop, the inner wall of the hoop is welded with connecting steel bar, the top of the hoop is fixedly connected with cast-in-place bent cap, the both sides of the top of cast-in-place bent cap are placed with prefabricated longitudinal beam, the top of the prefabricated longitudinal beam is connected with prefabricated bridge deck by bolt, the top of the prefabricated bridge deck is cast with cast-in-place leveling layer, the both sides of the top of cast-in-place bent cap are connected with anti-seismic baffle block by bolt, the both sides of the top of cast-in-place bent cap are placed with baffle.

[0007] Preferably, the front side and the back side of the hoop are riveted with connecting plates, the left side of the connecting plate is connected with a fastening bolt, and the surface of the fastening bolt is threaded with a nut.

[0008] Preferably, the opposite sides of the connecting plate are riveted with reinforcing ribs, and the opposite sides of the reinforcing ribs are welded with the hoop.

[0009] Preferably, the number of connecting steel bars is several, and the connecting steel bars are arranged around.

[0010] The top end of the connecting steel bar is preferably penetrated to the top of the cast-in-situ cover beam, and the two sides of the baffle are in contact with the anti-seismic stopper.

[0011] Preferably, the opposite sides of the anti-seismic stopper are fixedly connected with clamping blocks, and the two sides of the surface of the baffle are movably connected with buckles matched with the clamping blocks through pivots.

[0012] Compared with the prior art, the utility model has the advantages that the construction pollution is reduced and the construction period is short.

[0013] The prestressed concrete precast pile is punched into the soil, the hoop is installed on the top of the prestressed concrete precast pile, the connecting steel bar is welded on the inner wall of the hoop, the cast-in-situ cover beam is poured on the top of the hoop and the surface of the connecting steel bar, the precast longitudinal beam is placed on the top of the cast-in-situ cover beam, and the precast bridge deck is hoisted to the top of the precast longitudinal beam to complete the assembly work. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural perspective view of the utility model;

[0015] Figure 2 It is a local structural perspective view of the utility model;

[0016] Figure 3 It is a hoop structural perspective view of the utility model;

[0017] Figure 4 It is a connecting steel bar structural perspective view of the utility model;

[0018] Figure 5 It is a baffle structural perspective view of the utility model;

[0019] Figure 6 It is an anti-seismic stopper structural perspective view of the utility model.

[0020] In the drawing: 1, prestressed concrete precast pile; 2, hoop; 3, connecting steel bar; 4, cast-in-situ cover beam; 5, precast longitudinal beam; 6, precast bridge deck; 7, cast-in-situ leveling layer; 8, anti-seismic stopper; 9, connecting plate; 10, fastening bolt; 11, baffle; 12, clamping block; 13, buckle. DETAILED DESCRIPTION

[0021] Please refer to Figures 1-6The utility model provides a prefabricated structure for bridge engineering, including prestressed concrete prefabricated pile 1, the top of prestressed concrete prefabricated pile 1 surface is equipped with the hoop 2, the inner wall of hoop 2 is welded with the connecting reinforcement 3, and the top of hoop 2 is fixedly connected with cast-in-place bent cap 4, and the load from prefabricated stringer 5 can be evenly transmitted to prestressed concrete prefabricated pile 1 by setting cast-in-place bent cap 4, which guarantees the effective transmission of bridge structure stress and overall stability, and prefabricated stringer 5 is placed on both sides of the top of cast-in-place bent cap 4, and the top of prefabricated stringer 5 is connected with prefabricated bridge deck 6 through bolt, prefabricated bridge deck 6 can be prefabricated in advance in factory, then transported to construction site and installed, which greatly shortens the construction time on site, improves construction efficiency, cast-in-place leveling layer 7 is poured on the top of prefabricated bridge deck 6, and anti-seismic stopper 8 is connected on both sides of the top of cast-in-place bent cap 4 through bolt, the displacement of prefabricated stringer 5 and other structures can be limited by setting anti-seismic stopper 8, and the danger of falling off due to excessive vibration can be prevented, and baffle 11 is placed on both sides of the top of cast-in-place bent cap 4.

[0022] Please refer to Figure 1 and Figure 3 The front side and the back side of hoop 2 are riveted with connecting plate 9, the left side of connecting plate 9 is connected with fastening bolt 10 through penetration, the surface of fastening bolt 10 is threadedly provided with nut, and the installation and dismounting of hoop 2 are facilitated by setting fastening bolt 10 and nut, so that hoop 2 can be quickly fixed on prestressed concrete prefabricated pile 1 according to actual construction demand.

[0023] Please refer to Figure 3 The opposite side of connecting plate 9 is riveted with reinforcing rib, the overall structural strength and stability of hoop 2 are increased by setting reinforcing rib, and the opposite side of reinforcing rib is welded with hoop 2.

[0024] Please refer to Figure 3 The number of connecting reinforcement 3 is several, the force between prestressed concrete prefabricated pile 1 and cast-in-place bent cap 4 can be evenly transmitted by setting connecting reinforcement 3, the connection between the two is more stable, the overall structure is improved, and connecting reinforcement 3 is arranged around.

[0025] Please refer to Figure 1 and Figure 2 The top end of connecting reinforcement 3 penetrates to the top of cast-in-place bent cap 4, and the two sides of baffle 11 are in contact with anti-seismic stopper 8.

[0026] Please refer to Figure 5 and Figure 6 The opposite side of anti-seismic stopper 8 is fixedly connected with clamping block 12, and the two sides of the surface of baffle 11 are movably connected with clasp 13 matched with clamping block 12 through pivot, and clamping block 12 and clasp 13 are set, so that the user can quickly install baffle 11 between the two anti-seismic stoppers 8.

[0027] In use, first, the prestressed concrete precast pile 1 is driven into the river bottom, then the hoop 2 is installed and sleeved on the top surface of the prestressed concrete precast pile 1, and then the fastening bolt 10 and the nut are used to connect and fix the hoop 2, the connecting steel bars 3 are welded on the inner wall of the hoop 2, then the micro-expanding concrete is poured into the prestressed concrete precast pile 1, the rigid connection is achieved between the connecting steel bars 3 and the cast-in-place cover beam 4, the precast longitudinal beam 5 is hoisted to the top of the cast-in-place cover beam 4 by hoisting equipment, then the baffle 11 is installed between the anti-seismic stop blocks 8 through the buckle 13 and the clamping block 12, then the space surrounded by the baffle 11, the precast longitudinal beam 5 and the anti-seismic stop block 8 is poured with concrete, so that a wet joint is formed, thereby increasing the connection strength between the connecting steel bars 3 and the precast longitudinal beam 5, and finally the precast bridge deck 6 is hoisted to the top of the precast longitudinal beam 5 by hoisting equipment, and the construction work is completed.

[0028] In summary: the precast structure for bridge engineering solves the problems of high construction difficulty, heavy pollution and poor landscape effect of the existing bridge engineering in the river construction process through the cooperation of the prestressed concrete precast pile 1, the hoop 2, the connecting steel bars 3, the cast-in-place cover beam 4, the precast longitudinal beam 5, the precast bridge deck 6, the anti-seismic stop block 8 and the baffle 11.

Claims

1. A precast structure for bridge engineering, comprising a pre-stressed concrete precast pile (1), characterized in that: The prestressed concrete precast pile (1) surface top is sleeved with a hoop (2), the inner wall of the hoop (2) is welded with a connecting steel bar (3), the top of the hoop (2) is fixedly connected with a cast-in-place cover beam (4), both sides of the top of the cast-in-place cover beam (4) are placed with a precast longitudinal beam (5), the top of the precast longitudinal beam (5) is connected with a precast bridge deck (6) through bolts, the top of the precast bridge deck (6) is poured with a cast-in-place leveling layer (7), both sides of the top of the cast-in-place cover beam (4) are connected with an anti-seismic stop block (8) through bolts, and both sides of the top of the cast-in-place cover beam (4) are placed with a baffle (11).

2. A precast structure for bridge engineering according to claim 1, characterized in that: The front side and the rear side of the hoop (2) are riveted with a connecting plate (9), the left side of the connecting plate (9) is movably connected with a fastening bolt (10) penetrating through, and the surface of the fastening bolt (10) is threadedly sleeved with a nut.

3. A precast structure for bridge engineering according to claim 2, characterized in that: The opposite sides of the connecting plate (9) are riveted with a reinforcing rib, and the opposite sides of the reinforcing rib are welded with the hoop (2).

4. A precast structure for bridge engineering according to claim 1, characterized in that: The number of the connecting steel bars (3) is several, and the connecting steel bars (3) are arranged around.

5. A precast structure for bridge engineering according to claim 1, characterized in that: The top end of the connecting steel bar (3) penetrates to the top of the cast-in-place cover beam (4), and the two sides of the baffle (11) are in contact with the anti-seismic stop block (8).

6. A precast structure for bridge engineering according to claim 1, characterized in that: The opposite sides of the anti-seismic stop block (8) are fixedly connected with a clamping block (12), and the two sides of the surface of the baffle (11) are movably connected with a clasp (13) matched with the clamping block (12) through a rotating shaft.

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