Cast-in-place bridge of bridge floor limiting device

Abstract

The cast-in-place bridge of the bridge floor limiting device comprises a cover beam, a bridge deck slab and a limiting plate, pouring grooves and fixing grooves located in the pouring grooves are formed in the cover beam in a rectangular array mode, installation grooves are formed in the bridge deck slab in a rectangular array mode, and buffer blocks are arranged in the installation grooves. The limiting plate is vertically arranged, the lower end of the limiting plate is embedded in the pouring groove and located on the pouring groove to form a supporting column wrapping the limiting plate in a pouring mode, and the bridge deck slab is supported by the supporting column so that the upper end of the limiting plate can stretch into the buffer block. According to the cast-in-place bridge of the bridge floor limiting device, the lower end of the limiting plate is inserted into the fixing groove, then the formwork is arranged on the peripheral side of the pouring groove so that the formwork can be located in the pouring groove to pour and form the supporting column, the limiting plate is fixed and protected synchronously in the pouring and forming process of the supporting column, and therefore multiple pouring and forming processes are not needed; the construction time is shortened, and the installation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge technical field, concretely related to a cast-in-place bridge of bridge deck limiting device. BACKGROUND

[0002] Years of earthquake disasters in the world show that with the development of urbanization, the transportation network is more and more important in the whole city anti-seismic disaster prevention lifeline system, and among them, the longitudinal and horizontal beam falling of the bridge is the most prominent form of earthquake damage.

[0003] According to the announcement number CN210946460U, the announcement date is: 2020.07.07, a kind of cast-in-place bridge containing bridge deck limiting device.The utility model includes from bottom to top sequentially installed pier column, bent cap, support and bridge deck, connecting column is arranged between the bent cap and bridge deck, the lower part of connecting column is embedded in bent cap;The lower end of the bridge deck is provided with adjustable recess corresponding to the connecting column, the upper part of the connecting column is adjustable part arranged in adjustable recess, and the periphery of the adjustable part is provided with flexible material filled in adjustable recess.The utility model guarantees the stability of connecting column, when the bridge deck is displaced due to vibration, connecting column can strengthen the connection with bridge deck, reduce the displacement, can buffer the displacement of bridge deck, reduce the stress between connecting column and bridge deck, improve the protection effect of connecting column to bridge deck, so that bridge deck is allowed to displace a certain amount under the condition such as earthquake without affecting the stability of the whole, and the safety is stronger.

[0004] In the prior art including the above-mentioned patent, the connecting column and the flexible material are arranged between the bent cap and the bridge deck to form flexible buffering and limiting for the bridge deck, but in the actual construction process, the support column for supporting the bridge deck needs to be cast on the bent cap, and if the additional pre-buried casting of the connecting column is also carried out on the bent cap at the same time, it will cause too many casting forms on the bent cap and be inconvenient for actual construction, but if the support column and the connecting column are distributed and cast, the construction time will be lengthened and the construction efficiency will be reduced. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a cast-in-place bridge of bridge deck limiting device to solve the above problems.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a cast-in-place bridge of bridge deck limiting device, including bent cap, bridge deck and limiting plate, rectangular array is opened on the bent cap, and fixed groove is located in pouring groove, rectangular array is opened on the bridge deck, and mounting groove is arranged, buffer block is arranged in mounting groove, limiting plate is arranged vertically, and its lower end is embedded in pouring groove and located in pouring groove, and pouring column is formed to wrap limiting plate, the bridge deck is supported by pouring column to make the upper end of limiting plate into buffer block.

[0007] As preferred, a support groove is formed on the deck plate, the pouring groove is located in the support groove, the first end of the support pillar is poured to form a pouring bottom ring, the pouring bottom ring is located in the pouring groove, the first end of the support pillar is poured to form a top ring part, the top ring part is in contact with the support groove, and the inner diameter of the support groove is greater than the outer diameter of the top ring part.

[0008] As preferred, the first end of the limiting plate is symmetrically provided with an extension part extending horizontally and extending into the buffer block.

[0009] As preferred, the buffer block is symmetrically provided with a storage bag for storing the foaming glue inside, and the end of the extension part is symmetrically provided with a chamfer to form a piercing sharp point towards the storage bag.

[0010] As preferred, a wrapping ring is further included, the outer side of the support pillar is provided with a ring-shaped slope, the inner side of the wrapping ring is in contact with the ring-shaped slope to wrap the wrapping ring around the circumferential side of the support pillar, and the wrapping ring is located between the deck plate and the bent cap.

[0011] As preferred, a hollow cavity is formed in the wrapping ring, and the wrapping ring is made of a flexible material.

[0012] In the above technical solution, the cast-in-place bridge of the bridge limiting device has the following beneficial effects: the lower end of the limiting plate is inserted into the fixed groove, then a formwork is arranged around the pouring groove to pour and form the support pillar in the pouring groove, the limiting plate is located inside the support pillar after the support pillar is formed, the upper end of the limiting plate extends to the outside of the upper end of the support pillar, then the buffer block can be installed into the installation groove of the deck plate, and the deck plate is hoisted to the support pillar to complete the bridge installation, the fixing and protection of the limiting plate are completed synchronously during the pouring and forming of the support pillar, so that multiple pouring and forming processes are not required, the construction time is reduced, and the installation efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0014] Figure 1 The overall structure schematic view provided by the embodiments of the present application is provided.

[0015] Figure 2 The exploded structure schematic view of the pier, the bent cap and the deck plate provided by the embodiments of the present application is provided.

[0016] Figure 3The overall structure section view schematic diagram provided by the embodiment of the utility model;

[0017] Figure 4 The explosion structure schematic diagram of the pillar, the limiting plate, the buffer block and the wrapping ring provided by the embodiment of the utility model;

[0018] Figure 5 The embodiment of the utility model provides Figure 3 The local amplification schematic diagram of A place in the middle.

[0019] Mark explanation:

[0020] 1, bent cap; 11, pouring groove; 12, fixed groove; 13, pier; 2, deck; 21, support groove; 22, installation groove; 3, limiting plate; 31, extension; 4, pillar; 41, pouring bottom ring; 42, top ring part; 43, annular slope resistance; 5, buffer block; 6, storage bag; 7, wrapping ring; 71, hollow cavity. Specific implementation

[0021] In order to make the purpose, technical scheme and advantage of the embodiment of the present disclosure clearer, the technical scheme of the embodiment of the present disclosure will be described clearly and completely below in combination with the drawings of the embodiment of the present disclosure. Obviously, the described embodiment is a part of the embodiment of the present disclosure, not all. Based on the described embodiment of the present disclosure, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present disclosure.

[0022] As Figures 1-5 The cast-in-place bridge of the bridge face limiting device is shown in the figure, which comprises a bent cap 1, a deck 2 and a limiting plate 3, the bent cap 1 is provided with pouring grooves 11 and fixed grooves 12 in the pouring grooves 11 in a rectangular array, the deck 2 is provided with installation grooves 22 in a rectangular array, the buffer blocks 5 are arranged in the installation grooves 22, the limiting plate 3 is arranged vertically and the lower end of the limiting plate 3 is embedded in the pouring grooves 11 and located in the pouring grooves 11 to form the pillars 4 wrapping the limiting plate 3, and the deck 2 is supported by the pillars 4 so that the upper end of the limiting plate 3 extends into the buffer blocks 5.

[0023] Specifically, as Figure 1 The bent cap 1 is supported by the piers 13, and the fixed grooves 12 of the bent cap 1 are located in the pouring grooves 11, as Figure 5As shown, first, the lower end of the limiting plate 3 is inserted into the fixed groove 12, then the formwork is arranged around the pouring groove 11 to be located in the pouring groove 11 to pour and form the support 4, when the support 4 is formed, the limiting plate 3 is located inside the support 4, and the upper end of the limiting plate 3 extends to the outside of the upper end of the support 4, then the buffer block 5 can be installed into the installation groove 22 of the bridge deck 2, and the bridge deck 2 is hoisted to the support 4 to complete the bridge installation, at this time, the upper end of the limiting plate 3 extends into the buffer block 5 to utilize the limiting plate 3 and the buffer block 5 to realize the horizontal limiting and buffering of the bridge deck 2. And the limiting plate 3 is supported and wrapped by the support 4 to improve the horizontal deformation resistance of the limiting plate 3, and improve the service life of the limiting plate 3. And the existence of the pouring groove 11 and the fixed groove 12 makes the fixing and protection of the limiting plate 3 be completed simultaneously in the process of pouring and forming the support 4, so that multiple pouring and forming processes are not needed, the construction time is reduced, and the installation efficiency is improved.

[0024] In the above technical solution, the lower end of the limiting plate 3 is inserted into the fixed groove 12, then the formwork is arranged around the pouring groove 11 to be located in the pouring groove 11 to pour and form the support 4, when the support 4 is formed, the limiting plate 3 is located inside the support 4, and the upper end of the limiting plate 3 extends to the outside of the upper end of the support 4, then the buffer block 5 can be installed into the installation groove 22 of the bridge deck 2, and the bridge deck 2 is hoisted to the support 4 to complete the bridge installation, at this time, the upper end of the limiting plate 3 extends into the buffer block 5 to utilize the limiting plate 3 and the buffer block 5 to realize the horizontal limiting and buffering of the bridge deck 2. And the limiting plate 3 is supported and wrapped by the support 4 to improve the horizontal deformation resistance of the limiting plate 3, and improve the service life of the limiting plate 3. And the existence of the pouring groove 11 and the fixed groove 12 makes the fixing and protection of the limiting plate 3 be completed simultaneously in the process of pouring and forming the support 4, so that multiple pouring and forming processes are not needed, the construction time is reduced, and the installation efficiency is improved.

[0025] As further provided in the embodiments of the utility model, the bridge deck 2 is provided with a support groove 21, the pouring groove 11 is located in the support groove 21, the first end of the support 4 is poured to form a pouring bottom ring 41, the pouring bottom ring 41 is located in the pouring groove 11, the first end of the support 4 is poured to form a top ring part 42, the top ring part 42 abuts against the support groove 21, and the inner diameter of the support groove 21 is greater than the outer diameter of the top ring part 42.

[0026] Specifically, as shown in the drawings, Figure 4As shown, the lower end of the support column 4 is the first end, and the upper end is the second end. Since the support column 4 is cast into the casting groove 11 of the cap beam 1 using a template, a casting bottom ring 41 is formed at the bottom of the support column 4 to improve the connection stability between the support column 4 and the cap beam 1. The upper end of the support column 4 is cast into a stepped top ring 42 using a template. When the bridge deck 2 is hoisted onto the support column 4, the top ring 42 is supported within the support groove 21 to improve the support stability of the bridge deck 2. Furthermore, since the support groove 21 is a circular groove, and the inner diameter of the support groove 21 is larger than the outer diameter of the top ring 42, the peripheral side of the top ring 42 does not contact the inner peripheral wall of the support groove 21. If the bridge deck 2 moves horizontally, the top ring 42 can move horizontally within the support groove 21 to avoid breakage at the upper end of the support column 4, thus improving the support stability of the support column 4 for the bridge deck 2.

[0027] As a further embodiment provided in this utility model, the first end of the limiting plate 3 is symmetrically provided with an extension portion 31 that extends horizontally and extends into the buffer block 5.

[0028] Specifically, such as Figure 5 As shown, the upper end of the limiting plate 3 is the first end. The upper end of the limiting plate 3 extends into the buffer block 5, and the extension 31 extends symmetrically in the horizontal direction. The extension 31 is used to increase the contact area between the limiting plate 3 and the buffer block 5, reduce the shear force caused by the limiting plate 3 pressing the buffer block 5, and improve the service life of the buffer block 5. The horizontal arrangement of the extension 31 in the buffer block 5 can improve the tilt buffering stability of the limiting plate 3 and the buffer block 5 on the bridge deck 2, and further improve the protection of the bridge deck 2.

[0029] As a further embodiment provided by this utility model, the buffer block 5 is symmetrically arranged with storage bladders 6 for storing foam, and the ends of the extension 31 are symmetrically chamfered to form puncture tips facing the storage bladders 6.

[0030] Specifically, such as Figure 5The storage bladders 6 are symmetrically arranged on both sides of the limiting plate 3 in the horizontal direction, and the ends of the extensions 31 are symmetrically chamfered to form piercing tips facing the storage bladders 6. When the bridge deck 2 moves horizontally with a small amplitude, the bridge deck 2 drives the buffer block 5 to move and squeeze the limiting plate 3. The buffer block 5 buffers and limits the movement of the bridge deck 2 at this time. However, if the bridge deck 2 is subjected to a vibration that can damage the bridge, the bridge deck 2 moves horizontally with a large amplitude, and drives the buffer block 5 to move and squeeze the limiting plate 3 so that the piercing tips of the extensions 31 can pierce the storage bladder 6 on the squeezed side. The foam in the storage bladder 6 leaks out and foams and expands in volume, so that the foam enters the unsqueezed side of the buffer block 5, foams and expands and fixes it. Thus, the foam leaking out of the storage bladder 6 is used to further fix and fill the bridge deck 2 and apply pressure to reset it, thereby avoiding the problem of the bridge deck 2 moving horizontally and falling directly when subjected to large vibrations, and further improving the protection of the bridge deck 2.

[0031] As a further embodiment provided by this utility model, it also includes a wrapping ring 7. An annular slope 43 is provided on the outer side of the support column 4. The inner side of the wrapping ring 7 abuts against the annular slope 43 so that the wrapping ring 7 wraps around the periphery of the support column 4, and the wrapping ring 7 is located between the bridge deck 2 and the cap beam 1.

[0032] Specifically, such as Figure 5 As shown, the wrapping ring 7 is disposed on the periphery of the support column 4 to protect the surface of the support column 4 and improve the service life of the support column 4. The inner side of the wrapping ring 7 abuts against the annular slope 43 to improve the installation stability of the wrapping ring 7 on the support column 4. The wrapping ring 7 is located between the bridge deck 2 and the cap beam 1 to further improve the support stability of the bridge deck 2.

[0033] As a further embodiment provided in this utility model, the wrapping ring 7 has a hollow cavity 71 inside, and the wrapping ring 7 is made of a flexible material.

[0034] Specifically, such as Figure 5 As shown, the wrapping ring 7 has a hollow cavity 71 inside, and the wrapping ring 7 is made of flexible material or rubber. This allows the wrapping ring 7 to use the hollow cavity 71 inside and its own elasticity to further buffer and limit the bridge deck 2 vertically, thereby improving the protection of the bridge deck 2.

[0035] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A cast-in-place bridge of a bridge deck limiting device, characterized by, The utility model relates to a bridge support structure, including cap beam (1), bridge deck (2) and limiting board (3), rectangular array is seted up with pouring groove (11) and fixed groove (12) in pouring groove (11) on cap beam (1), rectangular array is seted up with mounting groove (22) on bridge deck (2), the mounting groove (22) is provided with buffer block (5), limiting board (3) vertical arrangement and its lower end is inlayed in pouring groove (11) and is located pouring groove (11) on pouring and forms the support (4) of wrapping limiting board (3), bridge deck (2) is supported by support (4) to make the upper end of limiting board (3) into buffer block (5), bridge deck (2) is seted up with support groove (21), pouring groove (11) is located in support groove (21), the first end of support (4) pours and forms pouring bottom ring (41), pouring bottom ring (41) is located in pouring groove (11), the first end of support (4) pours and forms top ring part (42), top ring part (42) is in contact in support groove (21), and the inner diameter of support groove (21) is greater than the outer diameter of top ring part (42), the first end of limiting board (3) is provided with the extension (31) that extends and enters buffer block (5) in horizontal state symmetry, buffer block (5) is arranged in symmetry in for internal storage foam glue storage bag (6), the end of extension (31) is provided with chamfer to form the pricking sharp of towards storage bag (6) symmetry.

2. A cast-in-place bridge with bridge floor limiting device according to claim 1, characterized in that, Still including the wrapping ring (7), the outer side of support (4) is provided with annular slope (43), the inner side of wrapping ring (7) is in contact on annular slope (43) to make wrapping ring (7) wrap in the circumference side of support (4), and wrapping ring (7) is located between bridge deck (2) and cap beam (1).

3. A cast-in-place bridge with bridge floor limiting device according to claim 2, characterized in that, The wrapping ring (7) is internally seted up with hollow cavity (71), and wrapping ring (7) is the flexible material piece.

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