Bridge bank side span cast-in-place beam structure
By adopting a combined structure of steel pipe columns and Bailey beam supports in bridge construction, the problems of unstable construction and complex operation of traditional supports were solved, and the effects of rapid installation and efficient construction were achieved.
Patent Information
- Application Number
- CN202422783834.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-11-14
AI Technical Summary
Traditional scaffolding construction methods are complex to set up, unstable, inconvenient to operate and pose safety hazards, making it difficult to meet the construction needs of high-altitude operations.
Multiple steel pipe columns and Bailey beam support structures are used, with H700 steel sections connected horizontally and I-beams and square timbers arranged longitudinally to form a stable cast-in-place beam structure for the bridge bank span. Combined with steel pipe piles and embedded steel plates, the support's stability and construction efficiency are improved.
The rapid installation and disassembly of the bracket is achieved, which reduces the safety risks during the construction process and improves the construction efficiency and stability.
Smart Images
Figure CN223373576U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the field of building construction technology, and in particular relates to a cast-in-place beam structure for a bridge bank span. Background Art
[0002] During construction, especially in challenging high-altitude operations and complex working conditions, scaffolding is a common auxiliary method widely used for support and securing operations. However, traditional scaffolding methods present numerous safety risks, such as unstable scaffolding structures, cumbersome installation and removal processes, and improper worker operation, which can easily lead to accidents. Therefore, improving the safety and efficiency of scaffolding construction has become a pressing issue.
[0003] In the existing technology, scaffold construction usually relies on steel pipes and metal locks for erection. Although this method can meet construction needs to a certain extent, it has obvious defects. First, the erection process of steel pipes and metal locks is complicated, requiring a lot of manpower and time, and the erection quality is difficult to guarantee. Secondly, due to the limitations of the erection method, the stability of the scaffold is poor, and it is easy to shake or tilt during construction, posing a serious threat to the life safety of workers. In addition, the traditional scaffold construction method also has problems such as inconvenient operation and difficult maintenance, which further increases the difficulty and risk of construction. Utility Model Content
[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a cast-in-situ beam structure for a bridge bank span, which is used to improve the stability of the support erection.
[0005] An embodiment of the present application provides a cast-in-place beam structure for a bridge bank span, comprising a plurality of steel pipe columns and Bailey beam supports; wherein: four steel pipe columns are arranged under the main longitudinal beam of the bridge located above the water surface, and four steel pipe piles are arranged under each of the steel pipe columns under the main longitudinal beam; the tops of the steel pipe columns are connected transversely with H700 steel, and the Bailey beam supports are erected longitudinally; the main keel of the Bailey beam is made of I-beam, arranged transversely, and the secondary keel is made of square timber, arranged longitudinally.
[0006] In a possible implementation, two steel pipe piles are provided under the remaining steel pipe columns in the bridge except for the steel pipe columns corresponding to the main longitudinal beams.
[0007] In a possible implementation manner, a disc-type bracket is provided on the top of the Bailey beam.
[0008] In a possible implementation manner, the I-beams of the main keel of the Bailey beam are arranged at a spacing of 60 cm to 90 cm in the transverse direction.
[0009] In a possible implementation manner, the spacing of the square timbers of the secondary keel of the Bailey beam along the longitudinal direction is 30 cm±1 cm.
[0010] In a possible implementation, the steel pipe piles are extended by butt joint, the thickness of the butt weld is not less than 10 mm, and steel plates are welded circumferentially at equal intervals.
[0011] In a possible embodiment, a composite beam of double H700 steel and double I56 I-steel is provided on the top of the steel pipe pile; the steel pipe column and the composite beam are connected by welding.
[0012] In a possible implementation, the steel pipe column is connected to the pier foundation by welding embedded steel plates, wherein embedded reinforcement is provided under the embedded steel plates.
[0013] In a possible implementation manner, at least four stiffening plates are welded around the steel pipe column and the embedded steel plate.
[0014] In a possible implementation, 16a channel steels are used transversely between the steel pipe columns in the same row as parallel connections and diagonal braces.
[0015] As described above, the cast-in-place beam structure of the bridge bank side span in this application makes the support structure more stable and reliable, effectively reduces the safety risks during the construction process, and also enables the rapid installation and disassembly of the support, greatly improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.
[0017] Figure 1 Shown is a schematic diagram of the overall structure of the cast-in-situ beam structure of the bridge bank span in one embodiment of the present application.
[0018] Component number description
[0019] 100 Bridge bank span cast-in-place beam structure
[0020] 110 steel pipe column
[0021] 111 Pile top distribution beam
[0022] 112 Connection System
[0023] 113 embedded steel plate
[0024] 120 Bailey beam bracket
[0025] 130 steel pipe piles
[0026] 131 beam
[0027] 132 longitudinal beam
[0028] 140 Temporary installation and removal channel
[0029] 150 Pier Bridge Deck
[0030] 160 Normal water level DETAILED DESCRIPTION
[0031] The following describes the embodiments of the present application through specific examples. Those skilled in the art can easily understand other advantages and effects of the present application from the information disclosed in the present application. The present application can also be implemented or applied through different specific embodiments. The details in the present application can also be modified or changed according to different viewpoints and application modules without departing from the spirit of the present application. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other unless they conflict.
[0032] Below Figure 1 For reference, the embodiments of the present application are described in detail so that those skilled in the art can easily implement the present application. The present application can be embodied in many different forms and is not limited to the embodiments described herein.
[0033] Throughout the present application, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or a group of embodiments or examples. Furthermore, those skilled in the art may combine and integrate different embodiments or examples, and features of different embodiments or examples, as described herein, without conflicting opinions.
[0034] Although the terms first, second, etc. are used to represent various structural features in this application in some examples, these structural features should not be limited by these terms. These terms are only used to distinguish one structural feature from another structural feature. Furthermore, as used in the present embodiment, the singular forms "one", "an" and "the" are intended to also include plural forms, unless there is an opposite indication in the context. It should be further understood that the terms "comprising" and "including" indicate the presence of the structural features described, but do not exclude the existence, occurrence or addition of one or a group of other structural features. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination.
[0035] In order to clearly describe the present application, structures not related to the description are omitted, and the same or similar structures throughout the specification are given the same reference numerals.
[0036] Throughout the description of the specific embodiments, when a structure is said to be "connected" to another structure, this includes not only "direct connection" but also "indirect connection" by placing other structural elements therebetween. Furthermore, when a structure is said to "include" a certain component, unless otherwise stated, this does not exclude the inclusion of other components but rather implies that the structure may include other components.
[0037] The technical terms used herein are intended only to refer to specific embodiments and are not intended to limit this application. The singular form used herein also includes the plural form, unless the statement explicitly indicates otherwise. The use of "include" in this specification is intended to specify specific features and structural elements and does not exclude the existence or addition of other features and structural elements.
[0038] Although not defined differently, all terms used herein, including technical and scientific terms, have the same meanings as those generally understood by those skilled in the art to which this application belongs. Terms defined in commonly used dictionaries are additionally interpreted as having meanings consistent with relevant technical literature and the current information provided. Unless otherwise defined, they should not be overly interpreted as ideal or highly formal meanings.
[0039] The present application provides a cast-in-place beam structure for a bridge bank span, which is used to improve the stability of support erection.
[0040] The following will be combined Figure 1 The principle and implementation of a bridge bank side span cast-in-place beam structure of this embodiment are elaborated in detail so that those skilled in the art can understand the bridge bank side span cast-in-place beam structure of this embodiment without creative work.
[0041] Figure 1Shown is a schematic diagram of the overall structure of the cast-in-place beam structure of the bridge bank span in one embodiment of the present application. Figure 1 As shown, the cast-in-situ beam structure of the bridge bank span provided in this embodiment is applied in water near the bridge bank, and includes a plurality of steel pipe columns 110 and Bailey beam supports 120 .
[0042] Specifically, in this embodiment, four steel pipe columns 110 are arranged under the main longitudinal beam of the bridge located above the water surface, and four steel pipe piles 130 are arranged under each of the steel pipe columns 110 under the main longitudinal beam; the tops of the steel pipe columns 110 are connected horizontally with H700 steel, and the Bailey beam bracket 120 is erected longitudinally; the main keel of the Bailey beam is made of I-beam, which is arranged horizontally, and the secondary keel is made of square wood, which is arranged longitudinally.
[0043] In this embodiment, four steel pipe columns 110 are arranged under the main longitudinal beam of the bridge, and four steel pipe piles 130 are arranged under each of the steel pipe columns 110 under the main longitudinal beam. In one possible embodiment, the diameter of each of the steel pipe columns 110 under the main longitudinal beam is larger than the diameter of the steel pipe columns 110 at other positions. The number of the steel pipe columns 110 is determined according to the length of the bridge. For example, the superstructure of the bridge is a prestressed concrete frame beam with a span of 51m, a total length of 61.7 meters, and a width of 31.5m. The main longitudinal beam is 2.8m wide, the cross beam is 0.8m wide, the cross beam spacing is 10m, the beam height is 2.85m, the top plate thickness is 50cm, and the steel-concrete joint section is 1.55m long. The side span cast-in-place beam is 35.65 meters above the ground. In this embodiment, for example, the steel pipe columns under the main longitudinal beams are made of 800 mm steel pipes, and the middle steel pipe columns are made of 609 mm steel pipes. A total of 81 steel pipe columns 110 are arranged according to the length of the bridge.
[0044] In a possible implementation, two steel pipe piles 130 are provided under the remaining steel pipe columns 110 in the bridge except the steel pipe columns 110 corresponding to the main longitudinal beams.
[0045] For example, in this embodiment, four steel pipe columns are arranged under the main longitudinal beam, and four 630mm steel pipe piles 130 are set under each steel pipe column as a foundation. Two 630mm steel pipe piles 130 are set under each of the remaining steel pipe columns 110 as a foundation. The longitudinal spacing of the steel pipe columns 110 is, for example, 8.35+9*3+9.65+6+5.35m, and the transverse spacing is, for example, 3.3+2.7+4.75+4.5*2+4.75+2.7+3.3m.
[0046] In this embodiment, the tops of the steel pipe columns 110 are horizontally connected with H700 steel sections to serve as pile top distribution beams 111, and the Bailey beam supports 120 are longitudinally erected. The main keels of the Bailey beam supports 120 are I-beams, which are arranged transversely, and the secondary keels are square timbers, which are arranged longitudinally.
[0047] In one possible embodiment, 16a channel steel is used as a horizontal connection and diagonal brace between the steel pipe columns 110 in the same row to form a connection system 112. After the steel pipe columns 110 in the same row are installed, 16a channel steel is used as a horizontal connection and diagonal brace, and the tops of the steel pipe columns 110 are connected to form a whole using double-piece H700 steel.
[0048] In a possible implementation, the I-beams of the main keel of the Bailey beam support 120 are arranged at a spacing of 60 cm to 90 cm in the transverse direction; and the square timbers of the secondary keel of the Bailey beam support 120 are arranged at a spacing of 30 cm±1 cm in the longitudinal direction.
[0049] For example, the main keel of the Bailey beam bracket 120 is made of I25 I-steel, arranged in the transverse direction with a spacing of 60cm-90cm, and the secondary keel is made of 10*10cm square wood, arranged in the longitudinal direction with a spacing of 30cm.
[0050] In a possible implementation manner, a disc-type bracket is provided on the top of the Bailey beam.
[0051] Specifically, the transverse spacing*longitudinal spacing*step distance of the disc-type brackets is preferably 120cm*90cm*150cm, and the transverse spacing*longitudinal spacing*step distance of the disc-type brackets under the cross-bridge beam is preferably 60cm*60cm*150cm.
[0052] In this embodiment, the steel pipe piles 130 are driven into the river below the bridge. The steel pipe piles 130 are located below the trestle deck 150 , with their tops protruding above the normal water level 160 .
[0053] Among them, when installing the steel pipe piles 130, a 100t crawler crane equipped with a DZ-120 vibratory hammer can be used for driving them in, and the foundation of the steel pipe piles 130 in the middle of the cast-in-place beam of the side span can be constructed along the transverse bridge, and a temporary installation and removal channel 140 can be constructed.
[0054] In one possible embodiment, the steel pipe piles 130 are extended by butt welding, with the butt weld thickness being no less than 10 mm, and steel plates welded circumferentially and equidistantly. For example, the butt weld is required to be fully welded, with a weld thickness of no less than 10 mm. Four 200×200×10 mm steel plates are then welded circumferentially and equidistantly. The steel plates are made of the same material as the steel pipe piles 130.
[0055] In one possible embodiment, a composite beam of double H700 steel and double I56 I-beams is placed on top of the steel pipe pile 130. The steel pipe column 110 and the composite beam are connected by welding. The double H700 steel serves as the longitudinal beam 132, and the double I56 I-beams serve as the transverse beam 131, forming a composite beam.
[0056] In a possible implementation, the steel pipe column 110 is connected to the pier foundation by welding embedded steel plates 113 , wherein embedded reinforcement is provided under the embedded steel plates 113 to ensure a reliable connection between the steel pipe and the pier foundation.
[0057] Furthermore, in one possible embodiment, at least four stiffening plates are welded around the steel pipe column 110 and the embedded steel plate 113. For example, the steel pipe column 110 and the embedded steel plate 113 are connected by welding at least four stiffening plates around the perimeter, with the weld thickness being no less than 8 mm to ensure the overall stability of the connection between the steel pipe column 110 and the embedded steel plate 113.
[0058] Alternatively, the steel pipe column 110 and the pier foundation can be extended using flange connections using pre-embedded steel plates 113 and anchor bolts. First, the pre-embedded flange steel plate is accurately positioned on the pier foundation. The axis and alignment of the pre-embedded flange steel plate are aligned and leveled with the axis and alignment of the steel pipe column 110 foundation. Finally, the anchor bolts are embedded and secured with flanges. Each anchor bolt is positioned by inserting holes through the pre-embedded flange steel plate and then aligned. The anchor bolts are then welded to the horizontal reinforcement of the steel pipe column 110.
[0059] In summary, the cast-in-place beam structure of the bridge bank side span in this application makes the support structure more stable and reliable, effectively reduces the safety risks during the construction process, and also enables the rapid installation and disassembly of the support, greatly improving construction efficiency.
[0060] The above embodiments are merely illustrative of the principles and effects of this application and are not intended to limit this application. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of this application. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical concepts disclosed in this application shall be covered by the claims of this application.
Claims
1. A cast-in-situ beam structure for a bridge bank span, characterized in that: It includes multiple steel pipe columns and Bailey beam supports; among which: Four steel pipe columns are set under the main longitudinal beam of the bridge located above the water surface, and four steel pipe piles are set under each of the steel pipe columns under the main longitudinal beam; the tops of the steel pipe columns are connected horizontally with H700 steel, and the Bailey beam support is erected longitudinally; the main keel of the Bailey beam is made of I-beam, which is arranged horizontally, and the secondary keel is made of square wood, which is arranged longitudinally.
2. The cast-in-situ beam structure for the bridge bank side span according to claim 1, characterized in that: Two steel pipe piles are arranged under the remaining steel pipe columns in the bridge except the steel pipe columns corresponding to the main longitudinal beams.
3. The cast-in-situ beam structure for the bridge bank side span according to claim 1, characterized in that: A disc-type bracket is arranged on the top of the Bailey beam.
4. The cast-in-situ beam structure for the bridge bank side span according to claim 1, characterized in that: The spacing between the I-beams of the main keel of the Bailey beam in the transverse direction is 60 cm to 90 cm.
5. The cast-in-situ beam structure for the bridge bank side span according to claim 1, characterized in that: The spacing of the square timbers of the secondary keel of the Bailey beam along the longitudinal direction is 30 cm ± 1 cm.
6. The cast-in-situ beam structure for the bridge bank side span according to claim 1, characterized in that: The steel pipe piles are extended by butt joint, the thickness of the butt weld is not less than 10 mm, and steel plates are welded circumferentially at equal intervals.
7. The cast-in-situ beam structure for the bridge bank side span according to claim 1, characterized in that: A composite beam of double H700 steel and double I56 I-steel is arranged on the top of the steel pipe pile; the steel pipe column and the composite beam are connected by welding.
8. The cast-in-situ beam structure for the bridge bank side span according to claim 1, characterized in that: The steel pipe column is connected to the pier foundation by welding pre-embedded steel plates, wherein pre-embedded reinforcement is provided under the pre-embedded steel plates.
9. The cast-in-situ beam structure for the bridge bank side span according to claim 8, characterized in that: At least four stiffening plates are welded around the steel pipe column and the embedded steel plate.
10. The cast-in-situ beam structure for the bridge bank side span according to claim 1, characterized in that: 16a channel steel is used transversely as a parallel connection and diagonal brace between the steel pipe columns in the same row.