CN213772963U - Floor type cantilever truss for cast-in-situ cover beam in water of large cantilever of municipal bridge - Google Patents

Floor type cantilever truss for cast-in-situ cover beam in water of large cantilever of municipal bridge Download PDF

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Publication number
CN213772963U
CN213772963U CN202022228881.6U CN202022228881U CN213772963U CN 213772963 U CN213772963 U CN 213772963U CN 202022228881 U CN202022228881 U CN 202022228881U CN 213772963 U CN213772963 U CN 213772963U
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China
Prior art keywords
truss
cantilever
main
floor type
municipal bridge
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CN202022228881.6U
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Chinese (zh)
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董明荣
干继红
陈诚
陈天龙
江晓慧
渠坤
全有维
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Third Construction Co Ltd of China Construction Eighth Engineering Divison Co Ltd
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Third Construction Co Ltd of China Construction Eighth Engineering Divison Co Ltd
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Abstract

The utility model discloses a floor type cantilever truss for a cast-in-situ bent cap in water of a large cantilever of a municipal bridge, belonging to the technical field of bridge engineering; the bearing platform comprises a bearing platform with pier columns poured on two sides of the top, bracket supports are pre-embedded in the upper half parts of the pier columns, stand columns are installed on the top of the bearing platform corresponding to the peripheries of the pier columns, the stand columns are indirectly connected with a main truss through a sandbox, and a main beam on the main truss is connected with the pre-embedded bracket supports, so that the construction is more convenient; between the first half of stand, all be connected with the staple bolt between the lower half, it is fixed through the support of staple bolt and bracket support, can increase the bulk rigidity of the truss of encorbelmenting, reduce the vertical displacement and the horizontal displacement of truss, improve the safety in utilization.

Description

Floor type cantilever truss for cast-in-situ cover beam in water of large cantilever of municipal bridge
Technical Field
The utility model belongs to the technical field of bridge engineering, especially, relate to a console mode truss of encorbelmenting that is used for cast-in-place bent cap of municipal administration bridge cantilever aquatic.
Background
The municipal bridge refers to a bridge built on a river channel, an overpass between a road and the road, an overpass between a road and a crossing railway and a pedestrian overpass in the city range, and the truss refers to a structure formed by connecting rod pieces at two ends by hinges. The truss is composed of straight rods, generally has a plane or space structure with triangular units, and the truss rod piece mainly bears axial tension or pressure, so that the strength of materials can be fully utilized, the truss is more material-saving than a real web beam when the span is large, the self weight can be reduced, and the rigidity can be increased. The main line cast-in-place capping beam temporary support generally consists of a cantilever type support (a main truss) and a lower supporting structure.
However, the floor type cantilever truss of the traditional municipal bridge large cantilever underwater cast-in-place bent cap has some disadvantages in the using process, the floor type cantilever truss of the traditional structure is complex in structure when being built and inconvenient to construct, and meanwhile, the main truss falls to the ground type support, the vertical displacement and the horizontal displacement of the main truss are large, the overall rigidity is low, and the overall safe reserve amount is small.
SUMMERY OF THE UTILITY MODEL
Not enough to exist among the prior art, the utility model provides a console mode truss of encorbelmenting that is used for cast-in-place bent cap of municipal administration bridge big cantilever aquatic, the cushion cap top corresponds pier stud and installs the stand all around, realizes indirect connection through the sandbox between stand and the main truss, girder on the main truss and the embedded bracket connection of pier stud first half, and whole device is built simply and the security is good.
In order to achieve the above object, the utility model provides a following technical scheme:
the floor type cantilever truss for the cast-in-situ bent cap in the large cantilever water of the municipal bridge comprises a bearing platform, wherein pier columns are poured on two sides of the top of the bearing platform, the bent cap is poured on the top of each pier column, and stand columns are installed on the periphery of the outer side of each pier column; the top of the upright post is connected with the bottom plate of the sandbox, and the top of the sandbox is connected with the main truss; the two ends of the top of the main truss are connected to the main beam.
Furthermore, hoops are connected between the upper half part and the lower half part of the upright post.
Furthermore, a bracket support is pre-embedded in the upper half part of the pier stud, and the middle position of the top of the main beam is connected with the bracket support.
Furthermore, a steel springboard is laid on the upper surface of the main beam, and a steel guardrail is connected to the outer edge of the upper surface of the main beam.
Furthermore, the sandbox comprises a concrete layer and a sand layer, and the top of the concrete layer is connected with the main truss.
Furthermore, the joints of the main truss and the joints of the upright columns are all triangularly reinforced through I-shaped steel and bolts.
Further, the length of the bracket support is larger than the width of the main truss.
Further, the main truss is in a trapezoidal structure.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a console mode cantilever truss of cast-in-place bent cap in municipal administration bridge big cantilever aquatic, simple structure, when putting up, through stand connection sandbox bottom, the sandbox top is connected with the main truss through concrete layer, and then the girder on the main truss is connected with pre-buried bracket, and the construction is more convenient; meanwhile, the overall rigidity of the cantilever truss can be greatly increased through the supporting and fixing of the hoop and the bracket support, the vertical displacement and the horizontal displacement of the truss are reduced, the overall safety reserve of the device is high, and the use safety is good; the triangular reinforcement is carried out at the joints between the main truss joint and the upright posts through I-shaped steel and bolts, so that the stability of the whole cantilever truss is further enhanced.
Drawings
Fig. 1 is a front view of the overall structure of the cantilever truss of the present invention;
fig. 2 is a left side view of the overall structure of the cantilever truss of the present invention;
fig. 3 is a top view of the main truss of the present invention;
fig. 4 is a bottom view of the main truss of the present invention;
fig. 5 is a front view of the sandbox of the present invention;
fig. 6 is a left side view of the sandbox of the present invention;
fig. 7 is a top view of the hoop structure of the present invention;
fig. 8 is a top view of the stand column of the present invention.
In the figure: 1-a bearing platform; 2-pier stud; 3, a main beam; 4-a capping beam; 5-a bracket support; 6, a main truss; 7-sandbox; 8-upright column; 9-anchor ear; 10-a steel gangplank; 11-steel guard rails; 12-a concrete layer; 13-sand layer.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments, of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of description of the present invention, and do not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, because it is not to be construed as limiting the present invention; the terms "mounted," "connected," "fixed," and the like are to be construed broadly and may include, for example, fixed connections, removable connections, or integral connections, direct connections, indirect connections through intervening media, and communication between two elements; the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus; the specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
As shown in fig. 1 and 2, the floor type cantilever truss for the municipal bridge large cantilever underwater cast-in-place bent cap of the utility model comprises a cushion cap 1, a pier stud 2, a main beam 3, a bent cap 4, a bracket support 5, a main truss 6, a sandbox 7, a stand column 8 and a hoop 9; pier columns 2 are poured on two sides of the top of the bearing platform 1, bent caps 4 are poured on the tops of the pier columns 2, and bracket supports 5 are pre-buried in the upper half parts of the pier columns 2; as shown in fig. 1, 2, 7 and 8, a column 8 is installed on the top of the bearing platform 1 corresponding to the outer circumference of the pier stud 2 through an expansion bolt, and hoops 9 are connected between the upper half part and the lower half part of the column 8; the top of the upright post 8 is connected with a sandbox 7, the top of the sandbox 7 is connected with a main truss 6, two ends of the top of the main truss 6 are connected to the main beam 3, and the middle position of the top of the main beam 3 is connected with the bracket 5; the upper surface of the main beam 3 is laid with a steel springboard 10, and the outer edge of the upper surface of the main beam 3 is connected with a steel guardrail 11. The connection modes described in the present embodiment are preferably bolt connections.
As shown in fig. 5 and 6, the sandbox 7 comprises a concrete layer 12, a sand layer 13 and a bottom plate which are sequentially arranged from top to bottom, the top of the concrete layer 12 is fixedly connected with the main truss 6 through bolts, the bottom plate of the sandbox 7 is connected with the upright posts, so that the upright posts 8 are indirectly connected with the main truss 6, and the sand layer 13 can play a certain role in buffering.
As shown in fig. 1, the main truss 6 is in a trapezoidal structure, as shown in fig. 3, 4 and 8, the joints of the main truss 6 and the joints between the upright columns 8 are all triangularly reinforced by i-steel and bolts, so as to reinforce the strength of the main truss 6 and the upright columns 8; the length of the bracket support 5 is larger than the width of the main truss 6.
In the actual building process, the upright post 8 is connected with the bottom of the sandbox 7, the main truss 6 is installed at the top of the sandbox 7, and then the main beam 3 on the main truss 6 is connected with the pre-embedded bracket 5, so that the whole cantilever truss is simple to build and convenient and fast to construct; simultaneously, support through staple bolt 9 and bracket support 5 is fixed, and the global rigidity of truss of encorbelmenting that can greatly increased reduces the vertical displacement and the horizontal displacement of truss less, and the security is higher.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The floor type cantilever truss for the cast-in-situ bent cap in the large cantilever water of the municipal bridge is characterized by comprising a bearing platform (1) with pier studs (2) poured on two sides of the top, bent caps (4) poured on the tops of the pier studs (2), and stand columns (8) arranged on the periphery of the outer side of the pier studs; the top of the upright post (8) is connected with a bottom plate of the sandbox (7), and the top of the sandbox (7) is connected with the main truss (6); the two ends of the top of the main truss (6) are connected to the main beam (3).
2. The floor type cantilever truss for the municipal bridge large cantilever underwater cast-in-place capping beam according to claim 1, wherein hoops (9) are connected between the upper half part and the lower half part of the upright post (8).
3. The floor type cantilever truss for the municipal bridge large cantilever underwater cast-in-place capping beam according to claim 1, wherein a bracket support (5) is pre-embedded in the upper half part of the pier column (2), and the middle position of the top of the main beam (3) is connected with the bracket support (5).
4. The floor type cantilever truss for the municipal bridge large cantilever underwater cast-in-place capping beam according to claim 1, characterized in that a steel springboard (10) is laid on the upper surface of the main beam (3), and a steel guardrail (11) is connected to the outer edge of the upper surface of the main beam (3).
5. The floor type cantilever truss for the municipal bridge large cantilever underwater cast-in-place capping beam according to claim 1, wherein the sandbox (7) comprises a concrete layer (12) and a sand layer (13) inside, and the top of the concrete layer (12) is connected with the main truss (6).
6. The floor type cantilever truss for the municipal bridge large cantilever underwater cast-in-place capping beam according to claim 1, wherein the joints of the main truss (6) and the joints between the upright columns (8) are all triangularly reinforced by I-steel and bolts.
7. The floor cantilever truss for the municipal bridge large cantilever underwater cast-in-place capping beam according to claim 3, wherein the bracket support (5) has a length greater than the width of the main truss (6).
8. The floor type cantilever truss for the municipal bridge large cantilever underwater cast-in-place capping beam according to claim 1, wherein the main truss (6) is in a trapezoidal structure.
CN202022228881.6U 2020-10-09 2020-10-09 Floor type cantilever truss for cast-in-situ cover beam in water of large cantilever of municipal bridge Active CN213772963U (en)

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Application Number Priority Date Filing Date Title
CN202022228881.6U CN213772963U (en) 2020-10-09 2020-10-09 Floor type cantilever truss for cast-in-situ cover beam in water of large cantilever of municipal bridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022228881.6U CN213772963U (en) 2020-10-09 2020-10-09 Floor type cantilever truss for cast-in-situ cover beam in water of large cantilever of municipal bridge

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CN213772963U true CN213772963U (en) 2021-07-23

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115354582A (en) * 2022-09-15 2022-11-18 中国水利水电第一工程局有限公司 Mounting bracket for prefabricated sectional capping beam and using method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115354582A (en) * 2022-09-15 2022-11-18 中国水利水电第一工程局有限公司 Mounting bracket for prefabricated sectional capping beam and using method thereof
CN115354582B (en) * 2022-09-15 2023-03-14 中国水利水电第一工程局有限公司 Mounting bracket for prefabricated sectional capping beam and using method thereof

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