Steel-concrete assembled wharf for double-ship integral floating construction

Abstract

The utility model discloses a reinforced concrete assembly wharf for double-ship integral floating support construction, which belongs to the technical field of arch bridge construction and comprises three sections of bearing platforms and two sections of trestles which are mutually staggered and linearly distributed, and the three sections of bearing platforms comprise a bearing platform I, a bearing platform II and a bearing platform III which are sequentially arranged at intervals to form three sections and have the same elevation. A channel I is arranged between the bearing platform I and the bearing platform II, a channel II is arranged between the bearing platform II and the bearing platform III, the two sections of trestles are detachable trestles arranged on the channel I and the channel II, and the channel I and the channel II are used for pontoon entering and exiting after the trestles on the channel I and the channel II are detached. According to the reinforced concrete assembled wharf, the advantages of a steel structure and a concrete structure are combined, the layout of the three sections of bearing platforms and the two sections of trestles, the arrangement of the two sections of channels and the detachable trestle structure are formed, a pontoon can conveniently float in and out after the trestles are dismantled, the ship floating technology is utilized, and the construction efficiency is improved. And a brand new solution is provided for construction of the large-span steel bridge.

Description

Technical Field

[0001] The utility model belongs to the technical field of arch bridge construction and provides a steel-concrete assembled wharf for the overall floating construction of double ships. Background Art

[0002] The bridge type and structural structure of an arch bridge are mainly determined by its construction plan. At present, the construction plans for large-span arch bridges on water include: cable hoisting plan, bracket plan, rotation construction plan, etc. The main problems are as follows: The cable hoisting plan requires the installation of multiple high towers, installation of buckles, back cables and ground anchors, and the use of large-tonnage cable cranes to assemble the arch ribs and bridge decks. The use of cable cranes requires large investment and high cost. The construction process is greatly affected by wind and has high risks. The entire construction process has a great impact on the safety of passing ships. The bracket construction plan requires the installation or pouring of scattered parts on the bracket, which requires a large number of temporary brackets and a long construction period. It is not suitable for bridges with navigation requirements. The rotation construction plan sets up brackets on the river bank or in the water. After the arch ribs are assembled, the arch ribs are rotated and the bridge deck is installed. The rotating disk of the rotation is expensive, the wind is greatly affected during the rotation process, the risk is high, and the construction period is long.

[0003] With the development of the economy and society, the construction of long-span steel bridges has increased year by year, and more and more of them are used to cross rivers. For example, some inland rivers have wide river surfaces, but there is a lack of large-tonnage transportation and lifting ships in the basin, which limits many processes. In order to expand the construction technology of long-span steel bridges in inland river basins, there is an urgent need for a method that combines multiple ship transportation and vertical lifting of the construction structure on board and off the frame, which can provide an auxiliary wharf for the construction of inland river long-span steel bridges to minimize the impact on navigation. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a steel-concrete assembled wharf for the overall floating construction of double ships, so as to provide efficient and safe construction for the construction of large-tonnage ships and large-span steel bridges.

[0005] In order to achieve the above object, the utility model provides the following technical solutions:

[0006] The utility model provides a steel-concrete assembled wharf for the overall floating construction of double ships, including three sections of caps and two sections of trestles that are staggered and distributed in a straight line, wherein the three sections of caps are composed of caps I, caps II, and caps III that are sequentially arranged in three sections and have the same elevation, and a channel I is set between caps I and caps II, and a channel II is set between caps II and caps III, and the two sections of trestles are detachable trestles set on both channels I and II, and channels I and II are used for floating ships to enter and exit after the trestles on each of them are removed. Through such a design structure, this steel-concrete assembled wharf combines the advantages of steel structure and concrete structure, and at the same time uses ship floating technology to provide a new solution for the construction of large-span steel bridges.

[0007] Optionally, cap Ⅰ, cap Ⅱ, and cap Ⅲ are surrounded by steel pipe piles and filled with soil or mountain stones on the corresponding surfaces facing the river, and cap Ⅱ is provided with reinforced concrete cap beams for erecting trestles on the steel pipe piles corresponding to cap Ⅰ and cap Ⅲ respectively and along their respective width directions. Through such a design structure, this steel-concrete assembled wharf can better cope with the impact of river flow and the entry and exit of ships, ensure the safety and stability of the wharf, and provide reliable protection for the docking and loading and unloading of ships.

[0008] Optionally, the trestle is composed of a base plate and a Bailey beam truss, the Bailey beam truss is erected on the reinforced concrete crown beam, the base plate is laid on the Bailey beam truss, and the upper surface of the base plate is not higher than the elevation of the pedestal II. With such a design structure, the erection and installation of the two sections of the trestle on the two channels of the three sections of the pedestal can be reliable and convenient.

[0009] Optionally, anchor points for towing pontoons are provided on pedestals I, II, and III. By using the anchor points, the pontoons can be firmly docked on the dock, unaffected by water flow and wind, and maintain a stable position. The towing and locking of the anchor points can ensure that the pontoons will not move or shake during the assembly of the arch bridge, ensuring the safety and smooth progress of the construction.

[0010] Optionally, foundations for installing arch rib support frames are provided on caps I, II and III, and the arch rib support frames are used to assemble the arch bridge. Through the positioning and installation of the foundation, it can be ensured that the connection between the arch rib support frame and the cap is firm and reliable, thereby ensuring the structural stability and safety of the arch bridge.

[0011] The beneficial effects of the utility model are as follows: the steel-concrete assembled wharf combines the advantages of steel structure and concrete structure, forming a layout of three sections of abutments and two sections of trestles, as well as the setting of two sections of waterways and a detachable trestles structure thereon, which can facilitate the floating of floating ships after the trestles are removed, and the wharf is conducive to the assembly construction of arch bridges. At the same time, the ship floating technology is used to provide a new solution for the construction of large-span steel bridges, which can provide more choices and convenience for the construction of large-span steel bridges, and help promote the development of the steel bridge construction industry.

[0012] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be described in detail below in conjunction with the accompanying drawings, in which:

[0014] Figure 1 It is a schematic plan view of a steel-concrete assembled dock for the overall floating construction of two ships of the utility model;

[0015] Figure 2 for Figure 1 AA cross-sectional view in FIG.

[0016] Figure 3 for Figure 2 The enlarged schematic diagram of the C part in FIG.

[0017] Figure 4 for Figure 1 BB cross-sectional view in FIG.

[0018] Figure 5 This is a schematic diagram of the application of the steel-concrete assembled dock for the overall floating construction of two ships of the utility model;

[0019] Figure 6 for Figure 5 The schematic diagram is shown after the bottom brackets of the arch rib support frames corresponding to the two sections of the trestle are removed;

[0020] Figure 7 for Figure 6 The schematic diagram after further dismantling the two sections of the trestle and entering the floating ship;

[0021] Figure 8 for Figure 7 A schematic diagram of a floating support connected to an arch rib support frame after installation on a floating vessel;

[0022] Fig. 9 for Figure 8 Schematic diagram of the floating arch bridge supported by a medium floating ship and the arch rib support frames installed on the three sections of the pedestal after removal;

[0023] Fig.10 for Fig. 9 Schematic diagram of the floating vessel carrying the arch bridge being towed out of the steel-concrete assembly wharf and used for lifting and installation;

[0024] Fig.11 It is a front view schematic diagram of a single floating ship used in the steel-concrete assembled dock for the integral floating construction of two ships of the utility model;

[0025] Figure numerals: 1-steel-concrete assembled wharf, 11-cap Ⅰ, 12-channel Ⅰ, 13-cap Ⅱ, 14 channel Ⅱ, 15 cap Ⅲ; 2-pier, 21-base plate, 22-Bailey beam truss; 3-reinforced concrete crown beam; 4-steel pipe pile; 5-anchor point; 6-foundation; 7-arch bridge; 8-arch rib support frame, 81-bottom support; 9-floating vessel, 91-floating support. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with specific implementation methods. The drawings are only used for exemplary descriptions, and are only schematic diagrams, not actual pictures, and cannot be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0027] like Figure 1-4 As shown, the utility model mentions a steel-concrete assembly wharf for double-ship integral floating construction, which is suitable for assembling the arch ribs of large-span steel structure arch bridges separately on board, and is also suitable for assembling the arch beams as a whole on board, and can also be used for assembling large-span steel beams on board, including three sections of caps and two sections of trestles that are staggered and distributed in a straight line, wherein the three sections of caps are composed of caps I11, caps II13, and caps III15 that are arranged in three sections in sequence and have the same elevation, and a channel I12 is set between caps I11 and caps II13, and a channel I12 is set between caps II13 and caps III15. It is set as channel II 14, and the two sections of trestles are detachable trestles 2 set on both channels I 12 and II 14, and channels I 12 and II 14 are used for floating ships 9 to enter and exit after the trestles 2 on them are removed; a single trestle 2 is composed of a base plate 21 and a Bailey beam truss 22, and the Bailey beam truss 22 is erected between the pedestal I 11 and the pedestal II 13, and between the pedestal II 13 and the pedestal III 15, the base plate 21 is laid on the Bailey beam truss 22, and the upper surface of the base plate 21 is not higher than the elevation of the pedestal II 13, which helps to ensure the elevation of the steel-concrete assembled wharf. With the above scheme, this steel-concrete assembled wharf combines the advantages of steel structure and concrete structure, forms a layout of three sections of pedestals and two sections of trestles, as well as the setting of the channel and the detachable trestle structure, which can be used for floating ships to float in and out after the trestles are removed. At the same time, the use of ship floating technology provides a new solution for the construction of large-span steel bridges, which can provide more choices and convenience for the construction of large-span steel bridges and help promote the development of the steel bridge construction industry.

[0028] In this embodiment, steel pipe piles 4 are used to enclose the corresponding surfaces facing the river, and corrugated steel plates are arranged on the rear side of the steel pipe piles 4; such a design can increase the stability and bearing capacity of the caps, ensuring that the dock can stand firmly under the impact of the water flow. Cap II 13 is provided with reinforced concrete crown beams 3 on the steel pipe piles 4 corresponding to the cap I 11 and the cap III 15 respectively and along their respective width directions, and the Bailey beam truss 22 of the trestle 2 is erected on the reinforced concrete crown beams 3. Such a design can increase the stability and bearing capacity of the trestle, ensuring that the trestle can safely carry heavy objects.

[0029] In this embodiment, the cap Ⅰ11, the cap Ⅱ13, and the cap Ⅲ15 are all provided with anchor points 5 for towing the floating boat 9. By setting the anchor points, the position and movement of the floating boat can be effectively controlled to prevent the floating boat from drifting or shaking under the influence of water flow or wind, and ensure the safety and smooth progress of ship operation and arch bridge assembly. At the same time, the cap Ⅰ11, the cap Ⅱ13, and the cap Ⅲ are all provided with foundations 6 for installing the arch rib support frame 8, and the arch rib support frame 8 is used to assemble the arch bridge 7. The arch rib support frame plays a key role in the assembly process of the arch bridge, and the reasonable setting of the foundation can ensure the stability and firmness of the arch rib support frame, thereby making the construction of the arch bridge more convenient and efficient, and improving the construction quality and safety. In order to reduce the amount of high-altitude work in assembling the arch rib support frame, the arch rib support frame assembled with the arch bridge is hoisted as a whole by a pre-assembled steel pipe bracket and connected by flange bolts for construction.

[0030] Recombination Figure 5-11As shown, the method for embarking the steel-concrete assembled wharf for the integral floating construction of double ships mentioned in the utility model is elaborated in detail, comprising the following steps: first, constructing the steel-concrete assembled wharf 1, that is, forming a layout with three-section abutments and two-section trestles, as well as the arrangement of two sections of waterways and a detachable trestle structure thereon; then, installing arch rib support frames 8 compatible with the arch bridge 7 on the three-section abutments and the two-section trestles of the steel-concrete assembled wharf 1, respectively, that is, using the foundation 6 provided on the abutments Ⅰ11, Ⅱ13 and Ⅲ15 of the three-section abutments to position and install the arch rib support frames 8 of the arch bridge 7 to be erected, and assembling the corresponding arch bridge 7 on all the erected arch rib support frames 8; then, dismantling the arch rib support frames 8 corresponding to each other on the two sections of the trestles. The bottom bracket 81 of the frame 8 is then lifted off the pier 2 to expose the channel I 12 and the channel II 14 in the three-section pier; then, a sinking and floating water tank is pre-installed on the ship to form a floating ship 9, and before the floating ship 9 enters the steel-concrete assembly wharf 1, the sinking and floating water tank is filled with water to allow the hull to sink to a preset elevation, and the hull enters through the preset towing system on the wharf, and a floating ship 9 is driven into the channel I 12 and the channel II 14 respectively, and the two floating ships 9 are towed and locked by using the anchor points 5 provided on the pier I 11, the pier II 13, and the pier III 15 in the three-section pier, and the planes of the two floating ships 9 are adjusted by using the sinking and floating water tank, and the floating brackets 91 to be connected to the arch rib support frame 8 with the bottom bracket 81 removed are installed on the two floating ships 9; then, The two floating vessels 9 are synchronously drained and floated, so that the floating support 91 is fixedly connected with the arch rib support frame 8 with the bottom support 81 removed, and then the connection structure between the arch rib support frame 8 and the arch bridge 7 provided on the cap Ⅰ11, the cap Ⅱ13, and the cap Ⅲ15 of the three-stage cap is removed; then, the two floating vessels 9 are continuously synchronously drained and floated, so that the two floating vessels 9 support the arch bridge 7 through the floating support 91 on them and the arch rib support frame 8 connected thereto, and then the arch rib support frame 8 provided on the cap Ⅰ11, the cap Ⅱ13, and the cap Ⅲ15 of the three-stage cap is quickly removed; then, the two floating vessels 9 are synchronously filled with water and sunk, and the lower ends of the two sides of the arch bridge 7 are not in contact with the cap Ⅰ11 and the cap Ⅲ15 respectively; that is, the structural system is transformed. To put it simply, the water in the sinking and floating water tank of the floating ship 9 is drained out to make the hull float on the arch rib support frame 8 and closely attached, the floating support of the structure and the load-bearing beam is connected as a whole, and then the top support connection system of the arch or beam in the three-stage pedestal area is released, and the water is continued to be drained so that the beam body or arch in the three-stage pedestal area is completely separated, and then the arch rib support frame structure of the three-stage pedestal area is quickly dismantled, so as to complete the conversion of the structural support force system; finally, the two floating ships 9 are synchronously towed out of the steel-concrete assembled wharf 1 to complete the double-ship overall floating embarkation and off-shore of the arch bridge 7, and used for lifting and installation in an open river or offshore; optionally, the two floating ships 9 are integrally connected using a steel structure truss, and the sinking and floating water tank is installed on the steel structure truss to form an integrated floating support system.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.

Claims

1. A steel-concrete assembled wharf for double-ship integral floating construction, characterized in that: The invention comprises three sections of caps and two sections of trestles which are staggered and arranged in a straight line. The three sections of caps are composed of caps I (11), caps II (13) and caps III (15) which are arranged in three sections in sequence and have the same elevation. A channel I (12) is arranged between the caps I (11) and the caps II (13), and a channel II (14) is arranged between the caps II (13) and the caps III (15). The two sections of trestles are detachable trestles (2) which are arranged on the channel I (12) and the channel II (14). After the trestles on the channel I (12) and the channel II (14) are removed, they are used as floating vessels (9) to enter and exit.

2. The steel-concrete assembled dock for double-ship integral floating construction according to claim 1 is characterized in that: The cap platform I (11), the cap platform II (13), and the cap platform III (15) are surrounded by steel pipe piles (4) on the corresponding surfaces facing the river and filled with soil or mountain stones. The cap platform II (13) is provided with reinforced concrete cap beams (3) for erecting the trestle (2) on the steel pipe piles (4) corresponding to each other on the cap platform I (11) and the cap platform III (15) and along their respective width directions.

3. The steel-concrete assembled dock for double-ship integral floating construction according to claim 2 is characterized in that: The trestle (2) is composed of a base plate (21) and a Bailey beam truss (22), wherein the Bailey beam truss (22) is erected on the reinforced concrete crown beam (3), and the base plate (21) is laid on the Bailey beam truss (22), and the upper surface of the base plate (21) is not higher than the elevation of the cap platform II (13).

4. The steel-concrete assembled dock for double-ship integral floating construction according to claim 1 is characterized in that: Anchor points (5) for towing the floating vessel (9) are provided on the platform I (11), the support platform II (13) and the support platform III (15).

5. The steel-concrete assembled dock for double-ship integral floating construction according to claim 1 is characterized in that: The platform I (11), the pedestal II (13), and the pedestal III (15) are all provided with a foundation (6) for installing an arch rib support frame (8), and the arch rib support frame (8) is used to assemble the arch bridge (7).

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