CN111910525B - Steel trestle - Google Patents
Steel trestle Download PDFInfo
- Publication number
- CN111910525B CN111910525B CN202010840469.1A CN202010840469A CN111910525B CN 111910525 B CN111910525 B CN 111910525B CN 202010840469 A CN202010840469 A CN 202010840469A CN 111910525 B CN111910525 B CN 111910525B
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- steel trestle
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 100
- 239000010959 steel Substances 0.000 title claims abstract description 100
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 7
- 238000004891 communication Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 16
- 230000000694 effects Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The application discloses a steel trestle. The steel trestle comprises: the method comprises the steps that a portal crane track and a communication-keeping steel trestle share a foundation are combined, and a first communication section for communication keeping is adopted; the second passing section is used for passing the gantry crane, is parallel to and adjacent to the first passing section; the gantry crane foundations are arranged at two ends of the first passing section and the second passing section; the application solves the technical problems of higher manufacturing cost, poor stability and poor safety performance by arranging the pair of steel trestle foundations at the lower sides of the gantry crane foundations, the first passing section and the second passing section.
Description
Technical Field
The application relates to the field of bridge engineering construction, in particular to a steel trestle.
Background
With the continuous development of urban bridge construction, many bridges play a role of a transportation hub and have an ornamental effect, especially around scenic spots.
Therefore, the more bridge designs in special environments such as river crossing, lake crossing and the like are originally, the more rainy and more wetlands and lakes exist in eastern coastal cities and south of China, and the more the bridge designs need to be constructed and the communication is ensured in the construction process.
The steel structure arch bridge is designed gracefully and spans Sihe. The main bridge steel box girder adopts a portal crane installation process, a portal crane track is arranged below the portal crane, and in order to ensure that the requirements of drainage and flood discharge are met in common and rainy seasons during construction, a steel trestle is arranged in a main river channel. The current construction scheme mainly comprises the steps of arranging a steel stack to keep-through bridge for draining and discharging flood, and arranging another steel trestle to support a gantry crane track. The following inconveniences are apparent: (1) the cost of setting up two steel trestle independently is higher. (2) poor stability. And (3) gaps are reserved between the two steel trestle bridges, so that the safety is poor.
Aiming at the problems of higher manufacturing cost, poor stability and poor safety performance in the related technology, no effective solution is proposed at present.
Disclosure of Invention
The application mainly aims to provide a steel trestle to solve the problems of high manufacturing cost, poor stability and poor safety performance.
In order to achieve the above object, according to one aspect of the present application, there is provided a method.
The steel trestle according to the application comprises: the first passage section is used for keeping through; the second passing section is used for passing the gantry crane, is parallel to and adjacent to the first passing section; the gantry crane foundations are arranged at two ends of the first passing section and the second passing section; and the steel trestle foundations are arranged on the lower sides of the gantry crane foundations, the first passing section and the second passing section.
Further, the first pass section includes: the system comprises a first bailey frame, a first distribution beam group and a second distribution beam group, wherein the first distribution beam group is longitudinally arranged at the top of the first bailey frame, and the second distribution beam group is arranged at the top of the first distribution beam group and is positioned above the first bailey frame; the first bailey frame is arranged on the left side of the steel trestle foundation.
Further, the first beret frame includes: seven first bailey beams and four first pergola, first pergola sets up two between the first bailey beams.
Further, the second pass section includes: a second bailey frame, a third distribution beam group longitudinally disposed on the top of the second bailey frame, and a support beam obliquely supported on the rightmost side of the second bailey frame; the second bailey frame is arranged on the right side of the steel trestle foundation.
Further, the second bailey frame includes: four second bailey beams and four second flower frames, wherein the second flower frames are arranged between the two second bailey beams; the leftmost second beret beam is connected with the rightmost side of the first passage section through a second flower stand.
Further, the pair of gantry crane track foundations are connected with the steel trestle foundations through the first spandrel girder.
Further, the first passing section and the second passing section are connected with the steel trestle foundation through the second spandrel girder.
Further, the steel trestle foundation includes: the steel pipe pile group is connected with the second spandrel girder and the pile top through a third bearing girder.
Further, the steel trestle foundation further comprises: and the parallel beams and the diagonal beams are arranged between the steel pipe piles in the steel pipe pile group.
Further, the steel pipe pile group includes: eight steel pipe piles, eight steel pipe piles are longitudinally arranged in two rows.
In the embodiment of the application, a mode of combining a gantry crane track and a common foundation of a keep-through steel trestle is adopted, and the gantry crane track and the common foundation are connected through a first pass section for keeping through; the second passing section is used for passing the gantry crane, is parallel to and adjacent to the first passing section; the gantry crane foundations are arranged at two ends of the first passing section and the second passing section; the steel trestle foundations are arranged at the lower sides of the gantry crane foundations, the first passing section and the second passing section; the lower part is used as an integral foundation, and the upper part is independently designed with the purpose of two passing sections, so that the technical effects of reducing the manufacturing cost and improving the stability and the safety are realized, and the technical problems of higher manufacturing cost, poor stability and poor safety performance are solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application, are incorporated in and constitute a part of this specification. The drawings and their description are illustrative of the application and are not to be construed as unduly limiting the application. In the drawings:
FIG. 1 is a schematic front view of a steel trestle according to an embodiment of the present application;
FIG. 2 is a schematic side view of a steel trestle according to a preferred embodiment of the present application;
fig. 3 is a top view of a steel trestle according to a further preferred embodiment of the application.
Reference numerals
10. A first pass section; 20. a second pass section; 30. a gantry crane foundation; 40. a steel trestle foundation; 50. a first bailey frame; 60. a first set of distribution beams; 70. a second set of distribution beams; 80. a first bailey beam; 90. a first flower stand; 100. a second bailey frame; 110. a third set of distribution beams; 120. a support beam; 130. a second bailey beam; 140. a second flower stand; 150. a first load beam; 160. a second spandrel girder; 170. a steel pipe pile group; 180. pile top; 190. a third load beam; 200. a parallel beam; 210. and (5) a diagonal bracing beam.
Detailed Description
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the application herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present application and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present invention will be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "mounted," "configured," "provided," "connected," "coupled," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1-3, the present application relates to a steel trestle comprising: a first pass section 10 for passage protection; the second passing section 20 is used for passing the gantry crane, is parallel to and adjacent to the first passing section 10; a pair of gantry crane foundations 30 disposed at both ends of the first pass section 10 and the second pass section 20; and a pair of steel trestle foundations 40 are arranged on the lower sides of the gantry crane foundation 30, the first passing section 10 and the second passing section 20.
Specifically, the first passage section 10 has the functions of keeping the transport vehicle, construction equipment and the like unobstructed and draining water and flood; the second passing section 20 has the function of ensuring the passing of the gantry crane and facilitating the installation of the field steel box girder; the gantry crane foundation 30 has the function of fixing the first passage section 10 and the second passage section 20; the steel trestle foundation 40 has the function of carrying the first passage section 10, the second passage section 20 and the gantry crane foundation 30. So, portal crane basis 30 and steel landing stage basis 40 connect into a whole, and be used for the first section of passing 10 that leads to of guarantor and be used for the second section of passing 20 of portal crane construction to set up respectively on same basis to guaranteed the whole atress of steel landing stage, avoided having the clearance between bridge and the bridge simultaneously, and set up two steel landing stages alone with the condition of adaptation portal crane construction and guarantor's requirement of leading to, and then reduced the cost, promoted stability and security. In this embodiment, the steel trestle foundation 40 and the gantry crane foundation 30 are respectively arranged at two ends of the first passing section 10 and the second passing section 20, and the first passing section 10 and the second passing section 20 are arranged in parallel, so that the stability of the structure is ensured; preferably, the first passing section 10 and the second passing section 20 are arranged in parallel and are positioned on the same horizontal plane, so that the construction difficulty is reduced, and only when the steel trestle foundations 40 are arranged, the height of each steel trestle foundation 40 is kept uniform, and construction according to different heights is not needed; the first passage section 10 and the second passage section 20 are adjacent, so that gaps are greatly reduced, and safety is ensured.
In the present embodiment, taking the bridge length of 9m and the total width of 8.5m as an example, the width of the first pass section 10 is set to 6.5m; the width of the second pass-through section 20 is set to 2m.
In this embodiment, the first passage section 10 and the second passage section 20 adopt different laying arrangements to adapt to the use of guarantor and gantry crane construction.
From the above description, it can be seen that the following technical effects are achieved:
In the embodiment of the application, a mode of combining a gantry crane track and a common foundation of a keep-through steel trestle is adopted, and the gantry crane track and the common foundation are connected through a first pass section 10 for keeping through; the second passing section 20 is used for passing the gantry crane, is parallel to and adjacent to the first passing section 10; a pair of gantry crane foundations 30 disposed at both ends of the first pass section 10 and the second pass section 20; a pair of steel trestle foundations 40 arranged at the lower sides of the gantry crane foundation 30, the first passing section 10 and the second passing section 20; the lower part is used as an integral foundation, and the upper part is independently designed with the purpose of two passing sections, so that the technical effects of reducing the manufacturing cost and improving the stability and the safety are realized, and the technical problems of higher manufacturing cost, poor stability and poor safety performance are solved.
As preferred in this embodiment, the first passage section 10 includes: a first bailey frame 50, a first distribution beam group 60 longitudinally disposed on top of the first bailey frame 50, and a second distribution beam group 70 disposed on top of the first distribution beam group 60 and above the first bailey frame 50; the first bailey frame 50 is disposed on the left side of the steel trestle foundation 40. The first passing section 10 is formed by combining a first bailey frame 50, a first distribution beam group 60 and a second distribution beam group 70; during laying, the first bailey frame 50 is firstly mounted on the steel trestle foundation 40, then the first distribution beams in the first distribution beam group 60 are arranged on the first bailey frame 50 at equal intervals and longitudinally one by one, and finally the second distribution beams in the second distribution beam group 70 are arranged on the top of the first distribution beam group 60 at equal intervals and transversely one by one, so that the first distribution beams are not required to be covered completely for a panel, and the space for laying the second through section 20 is required to be reserved; here, this distance is the width of the first bailey arm 50, so that the second set of distribution beams 70, when laid, is intended to cover the first bailey arm 50. The construction is simple, and the personnel calibration is convenient.
In the embodiment, the beam spacing of the first distribution beam is 70.5cm or 79.5cm, and the first distribution beam is I25a work steel; the second distribution beam was 30cm apart and was I14 steel and 10mm thick.
As preferable in this embodiment, the first bailey frame 50 includes: seven first bailey beams 80 and four first flower frames 90, said first flower frames 90 being arranged between two of said first bailey beams 80. As shown in fig. 2, two first bailey beams 80 are arranged at the left end, two are arranged at the right end, three are arranged at the middle position of the first passing section 10, and first flower frames 90 are arranged between the first bailey beams 80 and the second flower frames 140, so that stability is enhanced through cooperation of the first bailey beams 80 and the second flower frames 140, and meanwhile, through the arrangement of the positions, the bearing capacity of the bridge is improved.
As preferable in this embodiment, the second passage section 20 includes: a second bailey frame 100, a third distribution beam group 110 longitudinally disposed at the top of the second bailey frame 100, and a support beam 120 obliquely supported at the rightmost side of the second bailey frame 100; the second bailey frame 100 is disposed on the right side of the steel trestle foundation 40. The second through-going section 20 is formed by combining a second bailey frame 100 and a third distribution beam group 110; during laying, the second bailey frames 100 are firstly installed on the reserved space of the steel trestle foundation 40, and then the third distribution beams in the third distribution beam group 110 are arranged on the second bailey frames 100 at equal intervals longitudinally one by one; in order to ensure that the first traffic road section and the second traffic road section can be respectively adapted to traffic keeping and gantry crane construction, the beam spacing of the third distribution beam is set to be different from the beam spacing of the first distribution beam, and preferably, the third distribution beam is arranged in an encryption way; and no second distribution beam is provided as a panel on top of the third distribution beam. In addition, support beams 120 are provided to enhance stability of the second pass-through section 20.
In the embodiment, the beam spacing of the third distribution beam is 17.5cm or 19.5cm, and the third distribution beam is I25a work steel; the support beam 120 is I14 steel.
As preferable in this embodiment, the second bailey frame 100 includes: four second bailey beams 130 and four second flower frames 140, the second flower frames 140 being disposed between two of the second bailey beams 130; the leftmost second bailey beam 130 is connected to the rightmost side of the first pass segment 10 by a second flower stand 140. As shown in fig. 2, the second bailey beams 130 are arranged on the reserved space of the steel trestle foundation 40 at equal intervals, and are connected by adopting the second flower frames 140, so that the stability of the bridge can be enhanced by the cooperation of the second bailey beams 130 and the second flower frames 140; at the same time, through the above position arrangement, the bearing capacity of the bridge is improved.
As is preferred in this embodiment, a pair of gantry rail foundations are each connected to the steel trestle foundation 40 by a first spandrel girder 150. The first spandrel girder 150 serves to support and fix the gantry rail foundation and can engage the steel trestle foundation 40 at the bottom, making the gantry foundation 30 and the steel trestle foundation 40 a unit. In this embodiment, preferably, the first spandrel girder 150 is made of 2I32a steel, the gantry crane track foundation is poured on the 2I32a steel, and two first spandrel girders 150 are respectively used for supporting the gantry crane track foundation at the left end and the right end; effectively enhancing stability and safety.
As preferable in this embodiment, the first passing section 10 and the second passing section 20 are connected to the steel trestle foundation 40 through a second spandrel girder 160. The second spandrel girder 160 has the function of supporting and fixing the first passage section 10 and the second passage section 20 and can be connected with the steel trestle foundation 40 at the bottom; in this embodiment, the second spandrel girder 160 is preferably made of 2I45a steel, and one second spandrel girder 160 is used at each of the left and right ends to support the first passage section 10 and the second passage section 20.
As preferable in this embodiment, the steel trestle foundation 40 includes: the steel pipe pile group 170 and the pile top 180 are connected through a third bearing beam 190, the second spandrel girder 160 and the pile top 180. The third spandrel girder has the function of supporting and fixing the pile top 180 and the second spandrel girder 160 and can engage the steel pipe pile group 170 at the bottom; in this embodiment, preferably, the third spandrel girder is also made of 2I45a work steel; the steel pipe pile groups 170 are two groups and are respectively positioned at the left end and the right end of the first passing section 10 and the second passing section 20. As preferable in this embodiment, the steel pipe pile group 170 includes: eight steel pipe piles, eight steel pipe piles are longitudinally arranged in two rows. As shown in fig. 3, a third spandrel girder is arranged on each row of steel pipe piles, eight steel pipe piles are four rows of four corresponding third spandrel girders, pile tops 180 are arranged on the top surfaces formed by the four third spandrel girders, and a gantry crane track foundation is erected through the pile tops 180.
In this embodiment, the steel pipe pile is a foundation column having a diameter of 530×8 mm.
As preferable in this embodiment, the steel trestle foundation 40 further includes: a parallel beam 200 and an inclined beam 210 disposed between the steel pipe piles in the steel pipe pile group 170. The stability of the structure of the steel pipe pile group 170 is reinforced by the parallel beams 200 and the diagonal beams 210, thereby reinforcing the stability of the entire foundation.
As shown in figure 1, in order to ensure that the water level rises to submerge the gantry crane track foundation and the construction passageway during construction, a U-shaped groove with the width not exceeding 5m is excavated at the mid-span position of the trestle as a water passing channel.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (7)
1. A steel trestle, comprising: the first passage section is used for keeping through; the second passing section is used for passing the gantry crane, is parallel to and adjacent to the first passing section; the gantry crane foundations are arranged at two ends of the first passing section and the second passing section; the steel trestle foundations are arranged at the lower sides of the gantry crane foundations, the first passing section and the second passing section;
The first pass section includes: the system comprises a first bailey frame, a first distribution beam group and a second distribution beam group, wherein the first distribution beam group is longitudinally arranged at the top of the first bailey frame, and the second distribution beam group is arranged at the top of the first distribution beam group and is positioned above the first bailey frame; the first bailey frame is arranged on the left side of the steel trestle foundation;
The second pass section includes: a second bailey frame, a third distribution beam group longitudinally disposed on the top of the second bailey frame, and a support beam obliquely supported on the rightmost side of the second bailey frame; the second bailey frame is arranged on the right side of the steel trestle foundation;
the pair of gantry crane track foundations are connected with the steel trestle foundations through the first spandrel girder.
2. The steel trestle according to claim 1, characterized in that said first bailey frame comprises: seven first bailey beams and four first pergola, first pergola sets up two between the first bailey beams.
3. The steel trestle according to claim 1, characterized in that said second bailey frame comprises: four second bailey beams and four second flower frames, wherein the second flower frames are arranged between the two second bailey beams; the leftmost second beret beam is connected with the rightmost side of the first passage section through a second flower stand.
4. The steel trestle according to claim 1, wherein said first pass and said second pass are each connected to said steel trestle foundation by a second spandrel girder.
5. The steel trestle according to claim 4, wherein said steel trestle foundation comprises: the steel pipe pile group is connected with the second spandrel girder and the pile top through a third bearing girder.
6. The steel trestle according to claim 5, wherein said steel trestle foundation further comprises: and the parallel beams and the diagonal beams are arranged between the steel pipe piles in the steel pipe pile group.
7. The steel trestle according to claim 5, characterized in that said steel pipe pile group comprises: eight steel pipe piles, eight steel pipe piles are longitudinally arranged in two rows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010840469.1A CN111910525B (en) | 2020-08-19 | 2020-08-19 | Steel trestle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010840469.1A CN111910525B (en) | 2020-08-19 | 2020-08-19 | Steel trestle |
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| Publication Number | Publication Date |
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| CN111910525A CN111910525A (en) | 2020-11-10 |
| CN111910525B true CN111910525B (en) | 2024-07-02 |
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| CN202010840469.1A Active CN111910525B (en) | 2020-08-19 | 2020-08-19 | Steel trestle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113215989B (en) * | 2021-04-14 | 2022-11-01 | 上海通涵建筑工程有限公司 | Steel trestle and construction method thereof |
| CN113322964A (en) * | 2021-06-04 | 2021-08-31 | 中国建筑第八工程局有限公司 | Convenient steel trestle combined with foundation pit inner support and construction method |
| CN114790687A (en) * | 2022-03-08 | 2022-07-26 | 河北省高速公路延崇管理中心(河北省高速公路京雄管理中心) | Construction method of large-span steel box arch-connected bridge |
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| CN212561216U (en) * | 2020-08-19 | 2021-02-19 | 中交路桥建设有限公司 | Steel trestle |
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| KR20140023800A (en) * | 2012-08-17 | 2014-02-27 | (주)삼현피에프 | Feeding apparatus in putting precast girder on piers with back feeding using beam launcher and method using same |
| KR101671163B1 (en) * | 2014-05-21 | 2016-11-01 | (주)지아이에프 | Methods for transporting truss girder |
| KR101614253B1 (en) * | 2015-07-17 | 2016-04-20 | 비앤씨컨설턴트(주) | Cantilever construction method of temporary bridge |
| JP6926028B2 (en) * | 2018-05-18 | 2021-08-25 | 株式会社奥村組 | Temporary pedestal row and method of constructing temporary scaffolding using it |
| CN210597056U (en) * | 2019-07-01 | 2020-05-22 | 江苏开通建设工程有限公司 | Movable cantilever track gantry device in steel web installation |
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| CN212561216U (en) * | 2020-08-19 | 2021-02-19 | 中交路桥建设有限公司 | Steel trestle |
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