Wharf crane for steel-concrete composite beam construction

Abstract

The utility model relates to a wharf crane for steel-concrete composite beam construction. A stand column structure and a tension-compression type rear anchor structure are sequentially arranged on the side, facing the shoreside, of the bottom of a truss in the upward direction of a longitudinal bridge at intervals. The stand column structure and the tension-compression type rear anchor structure are erected on the shore side. The vertical rod is installed on the top of the truss and located over the stand column structure. Diagonal draw bar structures connected with the trusses are connected to the two upward sides of the vertical rods on the longitudinal bridge respectively; the first hoisting truss vehicle and the second hoisting truss vehicle are arranged on the truss and move in the longitudinal bridge direction; a tension-compression type rear anchor structure is adopted, so that the structure stress is clear, and the risk that the joint is damaged due to tension is reduced; the triangular stable structure formed by the cooperation of the vertical rods, the trusses and the diagonal draw bars enhances the structural strength and stability of the trusses when the trusses bear stress, the stress is uniform, the bearing capacity is improved, and the hoisting device can hoist large-tonnage steel box girders and steel-concrete composite girders. And the influence on waterway transportation caused by long-term occupation of a channel in large floating crane construction is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of bridge construction and equipment manufacturing, in particular to a wharf crane for steel-concrete composite beam construction. BACKGROUND

[0002] With the continuous development of bridge technology, steel-concrete composite beam bridges have been more and more widely used. Steel-concrete composite beam bridges have the advantages of both steel structures and concrete structures, can reduce the self-weight of the structure, increase the rigidity and stability of the structure, and therefore have become one of the main development directions of future long-span bridges.

[0003] There are many forms of steel-concrete composite beam sections, the most common one being a composite beam structure formed by a steel box beam and prefabricated concrete. Conventional construction usually adopts the idea of assembling in a shipyard and then transporting to the bridge site by barge, and then using a large floating crane for erection. However, it is difficult for a large floating crane of an inland river bridge to enter, and the inland waterway is relatively narrow, so that the long-term occupation of the waterway by the large floating crane will have a great impact on water transportation.

[0004] The traditional outrigger crane has limited lifting capacity and limited lifting distance when lifting large-tonnage steel box beams and steel-concrete composite beams, which makes it difficult to lift large-tonnage steel box beams or steel-concrete composite beams required by large bridges to the target position.

[0005] Therefore, for the construction of large inland river bridges, there is an urgent need for an equipment and method that is more adaptable and has less impact on the river to perform steel-concrete composite beam construction. SUMMARY

[0006] The present application provides a wharf crane for steel-concrete composite beam construction to solve the problem of narrow inland waterway, difficulty for a large floating crane of an inland river bridge to enter, and weak bearing capacity of a traditional crane in the construction of large inland river bridges in the related art.

[0007] In a first aspect, a wharf crane for steel-concrete composite beam construction is provided, comprising:

[0008] a truss having a bottom portion with a column structure and a tension-compression rear anchor structure arranged in sequence and spaced apart on one side of the truss in the longitudinal bridge direction, the column structure and the tension-compression rear anchor structure being erected on the shore;

[0009] a vertical rod installed on the top of the truss and located directly above the column structure, the vertical rod having a cable-stayed rod structure connected to the truss on both sides in the longitudinal bridge direction;

[0010] a first lifting truss trolley arranged on the truss and moving in the longitudinal bridge direction.

[0011] In some embodiments, the top of the vertical rod is provided with a connecting plate, and the connecting plate is provided with a plurality of connecting holes.

[0012] The truss is provided with a plurality of connection points which are arranged at intervals on both sides of the vertical rods in the longitudinal direction of the bridge;

[0013] The diagonal rod structure comprises a plurality of diagonal rods, one end of each diagonal rod is connected to one of the connection holes, and the other end is connected to one of the connection points; the lengths of the diagonal rods are not equal.

[0014] In some embodiments, the diagonal rods comprise a plurality of segments, and adjacent two segments are connected by a pin shaft.

[0015] In some embodiments, the truss comprises:

[0016] Two horizontal rods which are arranged at intervals in the transverse direction of the bridge and extend in the longitudinal direction of the bridge;

[0017] A flat link which extends in the transverse direction of the bridge and has two ends connected to one horizontal rod respectively to form a rectangular frame structure;

[0018] The number of vertical rods is two, and the two vertical rods are arranged at intervals in the transverse direction of the bridge and connected to the corresponding horizontal rods, and a horizontal link structure is connected between the two vertical rods.

[0019] In some embodiments, the bottom of the horizontal rod is provided with a connection support, and the horizontal rod has a designed length in the longitudinal direction of the bridge.

[0020] The column structure comprises:

[0021] Two second foundation bases which are arranged at intervals in the transverse direction of the bridge and are arranged in the foundation pit on the bank;

[0022] A column steel pipe frame which is installed on the corresponding second foundation base; the top of the column steel pipe frame is provided with two column longitudinal beams which are arranged at intervals in the longitudinal direction of the bridge; and the top of the column longitudinal beam is connected to the bottom of the connection support.

[0023] In some embodiments, the first hoisting truss trolley comprises a truss beam, a hoist mechanism, a steel wire rope, a lifting device, and a track wheel;

[0024] The truss beam is arranged in the transverse direction of the bridge, and the two ends of the truss beam are connected to the truss through the track wheels;

[0025] The hoist mechanism is installed on the truss beam, and the lifting device is connected to the hoist mechanism through the steel wire rope.

[0026] In some embodiments, a second hoisting truss trolley is further arranged on the truss, and the structure of the second hoisting truss trolley is the same as that of the first hoisting truss trolley.

[0027] In some embodiments, the tension-compression type rear anchor structure comprises:

[0028] Two support pipe assemblies which are arranged at intervals in the transverse direction of the bridge; and each support pipe assembly is provided with a column top beam at the top.

[0029] A distribution beam is arranged above the column top beam, and a clamping space is arranged between the two, which clamps the truss;

[0030] A first anchoring structure is anchoringly connected with the distribution beam, the truss and the column top beam;

[0031] A first foundation base is arranged in a foundation pit on the shore, and the bottom of the support pipe assembly is provided with a reinforcing steel bar connected therewith;

[0032] A second anchoring structure is anchoringly connected with the bottom of the support pipe assembly and the first foundation base;

[0033] An anchor beam is arranged at the bottom of the support pipe assembly and is anchored with the first foundation base through a prestressed anchor cable, which is sequentially arranged downward through the anchor beam and the first foundation base and is used for anchoring with the rock stratum in the foundation pit.

[0034] In some embodiments, the first anchoring structure comprises an anchor rod arranged on the distribution beam and anchoring downward through the distribution beam with the column top beam;

[0035] The second anchoring structure comprises an anchor beam arranged at the bottom of the support pipe assembly and anchored with the first foundation base through a prestressed anchor cable, which is sequentially arranged downward through the anchor beam and the first foundation base and is used for anchoring with the rock stratum in the foundation pit.

[0036] The technical scheme provided by the present application has the beneficial effects of:

[0037] The wharf crane for steel-concrete composite beam construction provided by the embodiment of the present application is arranged on the shore, and the influence of long-term occupation of the waterway by a large floating crane during construction on waterway transportation is avoided.

[0038] In use of the device, the steel beam is lifted from the water surface by the first lifting truss, and then the prefabricated bridge deck is lifted from the shore to the steel beam by the second lifting truss, the wet joint is poured, the steel-concrete composite beam is formed, the concrete bridge deck is combined on site, the wet joint is poured on site, the quality of the concrete engineering is improved, the construction efficiency is improved, and the project control cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0040] Figure 1 The front view of the pier crane for steel-concrete composite beam construction provided by the embodiment of the present application is provided.

[0041] Figure 2 The structural schematic diagram of the truss provided by the embodiment of the present application is provided.

[0042] Figure 3 The structural schematic diagram of the column structure provided by the embodiment of the present application is provided.

[0043] Figure 4 The structural schematic diagram of the tension-compression type rear anchor structure provided by the embodiment of the present application is provided.

[0044] Figure 5 The structural schematic diagram of the first lifting truss provided by the embodiment of the present application is provided.

[0045] In the figure: 1, truss; 101, horizontal rod; 102, vertical rod; 103, inclined rod; 104, flat link; 105, cross-link structure; 106, connecting plate; 107, connecting support; 2, column structure; 201, second base; 202, column steel pipe frame; 203, column vertical beam; 3, tension-compression type rear anchor structure; 301, prestressed anchor cable; 302, first base; 303, anchor beam; 304, support pipe assembly; 305, column top beam; 306, anchor rod; 307, distribution beam; 4, first lifting truss; 401, truss beam; 402, hoist mechanism; 403, steel wire rope; 404, lifting appliance; 405, track wheel; 5, second lifting truss; 601, steel beam; 602, prefabricated bridge deck. DETAILED DESCRIPTION

[0046] To make the purposes, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0047] It should be understood that:

[0048] The following factors need to be solved at present:

[0049] Factor one: there are many section forms of steel-concrete composite beams, the most common one is a bridge deck structure formed by a steel box beam and prefabricated concrete, and a conventional construction usually adopts the idea of assembling in a shipyard and then transporting to a bridge site by a barge, and then erecting by using a large floating crane. However, the large floating crane is difficult to enter the inland river bridge, and the inland waterway is relatively narrow, so the long-term occupation of the waterway by the large floating crane will have a great impact on water transportation.

[0050] Factor two: the traditional support leg type crane has limited lifting capacity and limited lifting distance when lifting large tonnage steel box beams and steel-concrete composite beams, which makes it difficult to lift the bridge deck structure formed by the steel box beam and the prefabricated concrete to the target position.

[0051] The embodiments of the present application provide a wharf crane for steel-concrete composite beam construction and a steel-concrete composite beam lifting method to solve the problem of weak bearing capacity of the traditional crane in the construction of large-scale inland river bridges.

[0052] Please refer to Figure 1 A wharf crane for steel-concrete composite beam construction, comprising:

[0053] The truss 1 has a bottom part, and a column structure 2 and a tension-compression type back anchor structure 3 are sequentially and spacedly arranged on one side of the bottom part in the longitudinal bridge direction and towards the shore side; the column structure 2 and the tension-compression type back anchor structure 3 are used for erecting on the shore side;

[0054] The vertical rod 102 is installed at the top of the truss 1 and located directly above the column structure 2; the vertical rod 102 has a cable-stayed rod structure connected with the truss 1 on both sides in the longitudinal bridge direction.

[0055] The first lifting truss trolley 4 is arranged on the truss 1 and moves along the longitudinal bridge direction.

[0056] The pull-push type post anchor structure 3 is adopted, so that the stress of the structure is clear, and the risk of tensile failure at the connection between the truss 1 and the pull-push type post anchor structure 3 is reduced; and the cooperation of the vertical rods 102, the truss 1 and the cable-stayed rod structure forms a triangular stable structure, which strengthens the structural strength and stability of the truss 1 when bearing stress, uniformly bears stress, improves the bearing capacity, can hoist large-tonnage steel box girders and steel-concrete composite girders, and in addition, the device is arranged on the shore, avoiding the long-term occupation of the waterway by a large floating crane, which has a great impact on waterway transportation.

[0057] In use of the device, the steel beam 601 is first lifted from the water surface, and then the prefabricated bridge deck 602 is hoisted from the shore to the steel beam 601, and the wet joint is poured to form a steel-concrete composite girder, which can realize the on-site combination of the concrete bridge deck and the on-site pouring of the wet joint, improve the quality of the concrete engineering, improve the construction efficiency and reduce the project control cost.

[0058] In some preferred embodiments, the arrangement form of the formed triangular stable structure is described in detail.

[0059] The top of the vertical rod 102 is provided with a connecting plate 106, and the connecting plate 106 is provided with a plurality of connecting holes;

[0060] A plurality of connecting points are arranged on the truss 1 and located on both sides of the vertical rod 102 in the longitudinal bridge direction, so as to facilitate disassembly, transportation and storage;

[0061] The cable-stayed rod structure includes a plurality of inclined rods 103, one end of each inclined rod 103 is connected with a connecting hole, and the other end is connected with a connecting point; the lengths of the inclined rods 103 are not equal, so as to facilitate disassembly, transportation and storage.

[0062] Through the above arrangement in the longitudinal bridge direction, a plurality of stable triangular structures can be formed to strengthen the overall structure of the truss 1, and the pull-push type post anchor structure 3 can resist the pulling force during hoisting.

[0063] In addition, the inclined rod 103 includes a plurality of segments, and adjacent two segments are connected through a pin shaft, so that no matter how long the inclined rod 103 is, it can be assembled, which is convenient for construction and installation.

[0064] Further, referring to Figure 1 and Figure 2 , the specific structure of the truss 1 is introduced, and the truss 1 includes:

[0065] Two horizontal rods 101 are arranged at intervals in the transverse bridge direction and extend along the longitudinal bridge direction;

[0066] A flat link 104 extends along the transverse bridge direction, and both ends of the flat link 104 are connected with one horizontal rod 101 respectively to form a rectangular frame structure;

[0067] The number of vertical rods 102 is two, two vertical rods 102 are arranged in the transverse direction and are connected with corresponding horizontal rods 101, and the transverse connecting structure 105 is connected between the two vertical rods 102. The transverse connecting structure 105 connects the two vertical rods 102 into one, further strengthening the structural strength.

[0068] The truss 1 is used to bear the load transmitted by the second hoisting truss 5 and the first hoisting truss 4, and the second hoisting truss 5 and the first hoisting truss 4 walk along the horizontal rod 101. The horizontal rod 101, the vertical rod 102, the inclined rod 103, and the flat connection 104 all adopt a combined steel box beam structure, the inclined rod 103 is connected by a pin shaft, and other components are connected by bolts. The horizontal rod 101 is connected with the vertical rod 102 and the flat connection 104 by bolts, and the inclined rod 103 is connected with the horizontal rod 101 and the vertical rod 102 by a pin shaft, forming a stable triangular truss structure.

[0069] In some preferred embodiments, reference is made to the accompanying drawings Figure 1 and the accompanying drawings Figure 3 The column structure 2 comprises:

[0070] The bottom of the horizontal rod 101 is provided with a connecting support 107, which has a designed length in the longitudinal direction.

[0071] The column structure 2 comprises:

[0072] Two second foundation bases 201 are arranged in the transverse direction and are arranged in the foundation pit on the shore;

[0073] The column steel pipe frame 202 is installed on the corresponding second foundation base 201, and the top of the column steel pipe frame 202 is provided with two column longitudinal beams 203 arranged in the longitudinal direction; the top of the column longitudinal beam 203 is connected with the bottom of the connecting support 107.

[0074] The connecting support 107 has a designed length in the longitudinal direction, which can reduce local stress concentration and strengthen stability. The column structure 2 is used to bear the load transmitted by the truss 1. The second foundation base 201 is an enlarged foundation, which is connected with the column steel pipe frame 202 by anchor bolts. The column steel pipe frame 202 is a lattice steel pipe column, and the components are connected by flanges. The column longitudinal beam 203 is a steel box beam structure, which is fixed with the column steel pipe frame 202 by bolts, and the top of the column longitudinal beam 203 is connected with the horizontal rod 101 by the connecting support 107.

[0075] In some preferred embodiments, reference is made to the accompanying drawings Figure 1 and Figure 4 The tension-compression type rear anchor structure 3 is described in detail:

[0076] The tension-compression type rear anchor structure 3 comprises:

[0077] two strut tube assemblies 304, which are arranged at intervals along the transverse bridge direction; each strut tube assembly 304 is provided with a column top cross beam 305 at the top thereof;

[0078] a distribution beam 307, which is arranged above the column top cross beam 305 and has a clamping space between the two, the clamping space clamping the truss 1;

[0079] a first anchoring structure, which is anchoringly connected with the distribution beam 307, the truss 1, the anchor rod 306 and the column top cross beam 305;

[0080] a first foundation base 302, which is used for installation in a foundation pit on the bank, and the bottom of the strut tube assembly 304 is provided with a reinforcing steel bar connected therewith;

[0081] a second anchoring structure, which is anchoringly connected with the bottom of the strut tube assembly 304 and the first foundation base 302.

[0082] an anchor beam 303, which is installed at the bottom of the strut tube assembly 304 and is anchored with the first foundation base 302 through a prestressed anchor cable 301; the prestressed anchor cable 301 is sequentially arranged through the anchor beam 303 and the first foundation base 302 downward and is used for anchoring with the rock stratum in the foundation pit.

[0083] The first anchoring structure includes the anchor rod 306, which is arranged on the distribution beam 307 and is sequentially anchored with the column top cross beam 305 downward.

[0084] The second anchoring structure includes the anchor beam 303 and the prestressed anchor cable 301, the anchor beam 303 is installed at the bottom of the strut tube assembly 304 and is anchored with the first foundation base 302 through the prestressed anchor cable 301; the prestressed anchor cable 301 is sequentially arranged through the anchor beam 303 and the first foundation base 302 downward and is used for anchoring with the rock stratum in the foundation pit.

[0085] Through the cooperation of the above first anchoring structure and the first anchoring structure and other components, the risk of the leg connection being easily damaged by tension is reduced, the structure is lighter and more convenient for on-site installation and removal.

[0086] The tension-compression type rear anchoring structure 3 is used for transmitting the load of the truss 1. The first foundation base 302 is an enlarged foundation, which is connected with the anchor beam 303 through a pre-embedded part and is used for resisting the pressure received by the tension-compression type rear anchoring structure 3. The prestressed anchor cable 301 is fixed on the anchor beam 303 and is used for resisting the pulling force received by the tension-compression type rear anchoring structure 3. The strut tube assembly 304 is a lattice type steel pipe column, the components of which are connected through flanges and are welded and fixed with the anchor beam 303 and the column top cross beam 305 in the factory. The column top cross beam 305 is a steel box beam structure, which supports the horizontal rod 101 in the middle and transmits the vertical pressure. The anchor rod 306 is a high-strength steel rod, which is fixed on the column top cross beam 305 and the distribution beam 307 and transmits the vertical tension. The distribution beam 307 is a steel box beam structure, which is used for limiting the horizontal rod 101 and transmitting the vertical tension.

[0087] In some preferred embodiments, reference is made to the accompanying drawings Figure 1 , the accompanying drawings Figure 5 , the structure of the second hoisting gantry 5 and the first hoisting gantry 4 is described:

[0088] The first hoisting gantry 4 comprises a girder 401, a hoisting mechanism 402, a steel wire rope 403, a lifting device 404 and a track wheel 405;

[0089] The girder 401 is arranged in the transverse bridge direction, and its two ends are slidably connected to the truss 1 through the track wheels 405;

[0090] The hoisting mechanism 402 is installed on the girder 401, and the lifting device 404 is connected through the steel wire rope 403.

[0091] Further comprising a second hoisting gantry 5 arranged on the truss 1, the structure of the second hoisting gantry 5 is the same as that of the first hoisting gantry 4.

[0092] The first hoisting gantry 4 is used for hoisting the steel beam 601 and the combined steel-concrete beam. The girder 401 is a spliced steel box girder structure, the segment components are connected by bolts, and the hoisting mechanism 402 can walk on the girder 401 to adapt to steel beams 601 of different widths. The hoisting mechanism 402 and the steel wire rope 403 are lifting structures, and the steel wire rope 403 is reeled in and out through the hoisting mechanism 402. The lifting device 404 is a steel structure, connected with the steel wire rope 403 through a pulley, and the lower end is connected with the lifting point of the steel beam 601 or the combined steel-concrete beam through a pin shaft or a shackle. The track wheel 405 is a running device, fixed at both ends of the girder 401, and can reciprocally walk on the horizontal bar 101. The second hoisting gantry 5 is used for hoisting the steel prefabricated bridge deck 602.

[0093] The application also provides a steel-concrete composite beam hoisting method, comprising the following steps:

[0094] Step 100, installing a steel-concrete composite beam construction wharf crane on the shore side; the steel-concrete composite beam construction wharf crane comprises a second hoisting gantry 5 and a first hoisting gantry 4 arranged in sequence in the longitudinal bridge direction;

[0095] Step 101, water transporting the steel beam 601 to the lower side of the truss 1, then moving the first hoisting gantry 4 to the upper side of the steel beam 601, connecting the first hoisting gantry 4 and the steel beam 601, and hoisting to a beam storage position;

[0096] Step 102, connecting the second hoisting gantry 5 with the prefabricated bridge deck 602 located on the shore side, then moving and lowering the prefabricated bridge deck 602 to the steel beam 601 by using the second hoisting gantry 5;

[0097] Step 103: Pour the wet joint between steel beam 601 and precast bridge deck 602 to form a steel-concrete composite beam;

[0098] Step 104: Use the first lifting gantry crane 4 to lift the steel-concrete composite beam to the installation position. Alternatively, it can be lifted again by this crane onto the ship and transported to other locations for erection or storage.

[0099] The above demonstrates that this crane can be used for lifting and lowering large-segment main beams weighing over 500 tons, making it a large-scale special equipment. It is suitable for bridge construction in complex waterways such as busy waterways, narrow waterways, and areas with large water level fluctuations, especially in construction areas where large floating cranes cannot access. It can realize on-site bonding of concrete bridge decks and on-site pouring of wet joints, improving the quality of concrete engineering, increasing construction efficiency, and reducing project management costs.

[0100] In addition, compared with traditional outrigger cranes, the innovative use of a tension-compression rear anchor structure optimizes the heavier rear outrigger structure and reduces the risk of tensile damage at the rear outrigger connection. The structure is lighter and easier to install and dismantle on site. The use of a large cantilever crane provides a large gantry crane operating range, which can overcome unfavorable geological conditions commonly found in mountainous canyons, such as shallow waters, faults, and sloping rock surfaces. It has high adaptability and strong turnover.

[0101] The crane's metal structure is lightweight, uses little steel, and is easy to modify. All components are prefabricated and small in size, making them easy to install, dismantle, and transport.

[0102] Finally, it should be noted that this crane can be used not only for the construction of steel-concrete composite beams, but also for various types of steel beam construction, precast beam construction, and other bridge construction fields, as well as dock operations that require large-tonnage cranes.

[0103] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0104] It should be noted that, in the present application, the relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another, without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations 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 can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0105] The foregoing is merely illustrative of the principles of the application and various modifications can be made by those skilled in the art without departing from the spirit and scope of the application. The above embodiments are illustrative, and not restrictive, of the scope of the application.

Claims

1. A quay crane for construction of a steel-concrete composite beam, characterized in that It comprises: a truss (1) which is provided with a column structure (2) and a tension-compression type rear anchor structure (3) in sequence and at intervals on one side of the bottom of the truss (1) which faces the shore in the longitudinal direction of the bridge; the column structure (2) and the tension-compression type rear anchor structure (3) are erected on the shore; a vertical rod (102) which is installed on the top of the truss (1) and is located directly above the column structure (2); the vertical rod (102) is provided with a cable-stayed rod structure which is connected with the truss (1) on both sides in the longitudinal direction of the bridge; a first hoisting truss trolley (4) which is arranged on the truss (1) and moves in the longitudinal direction of the bridge.

2. The wharf crane for steel-concrete composite beam construction according to claim 1, characterized in that: the top of the vertical rod (102) is provided with a connecting plate (106) which is provided with a plurality of connecting holes; the truss (1) is provided with a plurality of connecting points which are arranged at intervals on both sides of the vertical rod (102) in the longitudinal direction of the bridge; the cable-stayed rod structure comprises a plurality of inclined rods (103), one end of each inclined rod (103) is connected with one of the connecting holes, and the other end is connected with one of the connecting points; the lengths of the inclined rods (103) are not equal.

3. The wharf crane for steel-concrete composite beam construction according to claim 2, characterized in that: the inclined rod (103) comprises a plurality of segments, and adjacent two segments are connected through a pin shaft.

4. The steel-concrete composite beam construction use of a quayside crane according to claim 1, wherein The truss (1) comprises: two horizontal rods (101) which are arranged at intervals in the transverse direction of the bridge and extend in the longitudinal direction of the bridge; a flat link (104) which extends in the transverse direction of the bridge and has two ends each connected with one of the horizontal rods (101) to form a rectangular frame structure; the number of the vertical rods (102) is two, the two vertical rods (102) are arranged at intervals in the transverse direction of the bridge and are connected with the corresponding horizontal rods (101), and a horizontal link structure (105) is connected between the two vertical rods (102).

5. The wharf crane for steel-concrete composite beam construction according to claim 4, characterized in that: the bottom of the horizontal rod (101) is provided with a connecting support (107) which has a designed length in the longitudinal direction of the bridge; the column structure (2) comprises: two second base seats (201) which are arranged at intervals in the transverse direction of the bridge and are arranged in the foundation pit on the shore; a column steel pipe frame (202) which is installed on the corresponding second base seat (201); the top of the column steel pipe frame (202) is provided with two column longitudinal beams (203) which are arranged at intervals in the longitudinal direction of the bridge; the top of the column longitudinal beam (203) is connected with the bottom of the connecting support (107).

6. The wharf crane for steel-concrete composite beam construction according to claim 1, characterized in that: the first hoisting truss trolley (4) comprises a truss beam (401), a hoisting mechanism (402), a steel wire rope (403), a lifting device (404) and a track wheel (405); the truss beam (401) is arranged in the transverse direction of the bridge, and two ends thereof are connected with the truss (1) through the track wheel (405); the hoisting mechanism (402) is installed on the truss beam (401) and connects the lifting device (404) through the steel wire rope (403).

7. The wharf crane for steel-concrete composite beam construction according to claim 6, characterized in that: It further comprises a second hoisting gantry (5) arranged on the truss (1), which has the same structure as the first hoisting gantry (4).

8. The steel-concrete composite beam construction use of a quayside crane according to claim 1, wherein The tension-compression type rear anchor structure (3) comprises: Two strut pipe assemblies (304) are arranged at intervals in the transverse direction of the bridge; each strut pipe assembly (304) is provided with a column top beam (305) at the top; A distribution beam (307) is arranged above the column top beam (305), and a clamping space is arranged between the two, which clamps the truss (1); A first anchoring structure is anchoringly connected with the distribution beam (307), the truss (1) and the column top beam (305); A first foundation base (302) is used to be installed in a foundation pit on the shore, and the bottom of the strut pipe assembly (304) is provided with a reinforcing steel bar connected therewith; A second anchoring structure is anchoringly connected with the bottom of the strut pipe assembly (304) and the first foundation base (302); An anchor beam (303) is installed at the bottom of the strut pipe assembly (304) and is anchored with the first foundation base (302) through a prestressed anchor cable (301); the prestressed anchor cable (301) is sequentially arranged through the anchor beam (303) and the first foundation base (302) downward and is used to be anchored with the rock stratum in the foundation pit.

9. The wharf crane for steel-concrete composite beam construction according to claim 8, characterized in that: The first anchoring structure comprises an anchor rod (306) arranged on the distribution beam (307) and anchoringly connected with the column top beam (305) downward through the distribution beam (307); The second anchoring structure comprises an anchor beam (303) and a prestressed anchor cable (301); the anchor beam (303) is installed at the bottom of the strut pipe assembly (304) and is anchored with the first foundation base (302) through the prestressed anchor cable (301); the prestressed anchor cable (301) is sequentially arranged through the anchor beam (303) and the first foundation base (302) downward and is used to be anchored with the rock stratum in the foundation pit.

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