Fabricated hanging bracket device based on pi-shaped steel-concrete composite beam

Abstract

The assembly type hanging bracket device comprises two hanging brackets and two pairs of hoisting holes, each hanging bracket comprises a bottom supporting beam, an upper cross beam and two vertical hanging rods, the lower ends of the two vertical hanging rods are connected to the two ends of the bottom supporting beam in a one-to-one correspondence mode, and the upper ends of the two vertical hanging rods are connected to the two ends of the upper cross beam in a one-to-one correspondence mode. The two vertical suspenders penetrate through the two hoisting holes in the pair of penetrating holes in a one-to-one correspondence mode, the bottom joist and the upper cross beam extend in the transverse bridge direction, the bottom joist is used for being supported on the lower side of the left steel beam and the lower side of the right steel beam, the upper cross beam is located above the bridge deck slab, two hoisting holes are formed in the upper cross beam, and steel sheaths are arranged in the hoisting holes in a penetrating mode. And a lifting pin is arranged in the steel sheath in a penetrating manner and is connected with lifting equipment through a sling. The utility model aims to provide the assembled hanging bracket device based on the pi-shaped steel-concrete composite beam, which can be recycled, and solves the problem of high hoisting cost of the existing pre-embedded hanging bracket in a hoisting manner according to a lifting lug.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to an assembled hanging device based on a π-shaped steel-concrete composite beam. Background Art

[0002] In bridge construction, a π-shaped steel-concrete composite beam is prefabricated, and then the π-shaped steel-concrete composite beam is hoisted onto a vehicle for transportation. The π-shaped steel-concrete composite beam includes a bridge deck of a concrete structure, a left steel beam and a right steel beam. The left steel beam and the right steel beam are distributed transversely to the bridge axis and extend longitudinally. The left steel beam includes a left top plate, a left vertical plate and a left bottom plate, and the left top plate, the left vertical plate and the left bottom plate are connected together in an "I" shape. The right steel beam includes a right top plate, a right vertical plate and a right bottom plate, and the right top plate, the right vertical plate and the right bottom plate are connected together in an "I" shape. In order to be hoisted, the existing method is to embed a steel plate with bolts in the bridge deck, and then install a lifting lug on the bridge deck by matching the bolt with a nut, and cooperate with equipment such as a truss crane and a sling to hoist the lifting lug so as to achieve hoisting. The following deficiencies exist in this hoisting method: for the embedding method, in order to ensure strength, the area of the steel plate must be large, otherwise the load-bearing capacity is insufficient, resulting in a large consumption of steel. Moreover, the bolts are exposed on the bridge deck and need to be cut off, which results in a high cost for realizing hoisting, and the embedded steel cannot be recycled. Content of the Utility Model

[0003] The utility model aims to provide an assembled hanging device based on a π-shaped steel-concrete composite beam that can be recycled, and solves the problem of high hoisting cost of the existing method of hoisting with embedded lifting lugs.

[0004] To achieve the above-mentioned utility model object, the present utility model adopts the following technology: An assembled hanging device based on a π-shaped steel-concrete composite beam. The π-shaped steel-concrete composite beam includes a bridge deck of a concrete structure, a left steel beam and a right steel beam. The left steel beam and the right steel beam are distributed along the transverse direction of the bridge and extend along the longitudinal direction of the bridge and are connected to the lower surface of the bridge deck. It is characterized in that it includes two hanging brackets distributed along the longitudinal direction of the bridge and two pairs of hoisting holes distributed along the longitudinal direction of the bridge provided on the bridge deck. The left steel beam and the right steel beam are located between the two hoisting holes in the same pair of through holes. The hanging bracket includes a bottom support beam, an upper cross beam and two vertical suspension rods. The lower ends of the two vertical suspension rods are correspondingly connected to the two ends of the bottom support beam, and the upper ends are correspondingly connected to the two ends of the upper cross beam. The two vertical suspension rods are correspondingly passed through the two hoisting holes in a pair of through holes. Both the bottom support beam and the upper cross beam extend along the transverse direction of the bridge. The bottom support beam is used to support the lower sides of the left steel beam and the right steel beam. The upper cross beam is located above the bridge deck. Two hoisting holes are provided on the upper cross beam. A steel sheath is passed through the hoisting holes. A suspension pin is passed through the steel sheath. The suspension pin is connected to the hoisting equipment through a suspension cable. The process of lifting the π-shaped steel-concrete composite beam is to lift the suspension cable by the hoisting equipment, so as to lift the π-shaped steel-concrete composite beam to a set position through the bottom support beam, and then remove the assembled hanging device. In this technical solution, there will be no large extrusion effect on the bridge deck during lifting, and it is not easy to cause damage to the π-shaped steel-concrete composite beam. At the same time, the hoisting holes can play a limiting role.

[0005] Preferably, the vertical suspension rod is connected to the bottom support beam through a lower connecting pin of the suspension rod, and the vertical suspension rod is connected to the upper cross beam through an upper connecting pin of the suspension rod. When installing and disassembling this assembled hanging device, just pull out the upper and lower connecting pins of the suspension rod, and the installation and disassembly are convenient.

[0006] Preferably, the bottom supporting beam includes two lower channel steels. Each lower channel steel includes a top plate of the lower channel steel part, a side plate of the lower channel steel part whose upper end is connected to one end of the top plate of the lower channel steel part, and a bottom plate of the lower channel steel part whose one end is connected to the lower end of the side plate of the lower channel steel part. The vertical suspension rod is located between the side plates of the lower channel steel parts of the two lower channel steels. The vertical suspension rod and the top plate of the lower channel steel part are located on both sides of the side plate of the lower channel steel part. The upper ends of the two lower channel steels are welded to the upper reinforcement plate of the bottom supporting beam part together, and the lower ends are welded to the lower reinforcement plate of the bottom supporting beam part together. The lower connecting pin of the suspension rod is simultaneously penetrated through the side plates of the lower channel steel parts of the two lower channel steels. The upper cross beam includes two upper channel steels. Each upper channel steel includes a top plate of the upper channel steel part, a side plate of the upper channel steel part whose upper end is connected to one end of the top plate of the upper channel steel part, and a bottom plate of the upper channel steel part whose one end is connected to the lower end of the side plate of the upper channel steel part. The vertical suspension rod is located between the two upper channel steels. The vertical suspension rod and the top plate of the upper channel steel part are located on both sides of the side plate of the upper channel steel part. The upper ends of the two upper channel steels are welded to the upper reinforcement plate of the upper cross beam part together, and the lower ends are welded to the upper reinforcement plate of the upper cross beam part together. The upper connecting pin of the suspension rod is simultaneously penetrated through the side plates of the upper channel steel parts of the two upper channel steels. The steel sheath is simultaneously penetrated through the side plates of the upper channel steel parts of the two upper channel steels. The fixing of the suspension rod is reliable, with good stability and good structural strength.

[0007] Preferably, the two ends of the lower connecting pin of the suspension rod are correspondingly penetrated through two reinforcing blocks of the bottom supporting beam part. The two reinforcing blocks of the bottom supporting beam part are correspondingly welded to the side plates of the lower channel steel parts of the two lower channel steels. The two ends of the upper connecting pin of the suspension rod are correspondingly penetrated through two reinforcing blocks of the upper cross beam part. The two reinforcing blocks of the upper cross beam part are correspondingly welded to the side plates of the upper channel steel parts of the two upper channel steels. It can improve the strength at the stress point and meet the requirement of strength improvement with less cost.

[0008] Preferably, the reinforcing block of the bottom supporting beam part is located on the side of the side plate of the lower channel steel part away from the vertical suspension rod, and the reinforcing block of the upper cross beam part is located on the side of the side plate of the upper channel steel part away from the vertical suspension rod. It is convenient for welding connection.

[0009] Preferably, two limiting blocks are welded on the bottom supporting beam. The left steel beam and the right steel beam are located between the two limiting blocks. It can prevent the π-shaped steel-concrete composite beam from shifting and damaging the vertical suspension rod during hoisting, and improve the safety during use.

[0010] Preferably, it further includes a reinforcing support frame. The left steel beam includes a left top plate, a left vertical plate, and a left bottom plate, which are connected together in an "I" shape. The right steel beam includes a right top plate, a right vertical plate, and a right bottom plate, which are connected together in an "I" shape. The reinforcing support frame includes a horizontal support and two cross - arranged inclined supports. At the lower end inside the left steel beam, a lower left connecting piece is welded, and at the upper end, an upper left connecting piece is welded. The lower left connecting piece is welded to both the left vertical plate and the left bottom plate at the same time, and the upper left connecting piece is welded to both the left vertical plate and the left top plate at the same time. At the lower end inside the right steel beam, a lower right connecting piece is welded, and at the upper end, an upper right connecting piece is welded. The lower right connecting piece is welded to both the right vertical plate and the right bottom plate at the same time, and the upper right connecting piece is welded to both the right vertical plate and the right top plate at the same time. The left end of the horizontal support is detachably connected to the lower left connecting piece, and the right end is detachably connected to the lower right connecting piece. The lower end of one inclined support is detachably connected to the lower left connecting piece, and the other end is detachably connected to the upper right connecting piece. The lower end of the other inclined support is detachably connected to the lower right connecting piece, and the other end is connected to the upper left connecting piece. It can avoid damage to the left and right steel beams during hoisting. The reinforcing support frame can be recycled.

[0011] Preferably, the left end of the horizontal support and the lower end of one inclined support are detachably connected to the lower left connecting piece through a lower left pin, the right end of the horizontal support and the lower end of the other inclined support are detachably connected to the lower right connecting piece through a lower right pin, the upper end of one inclined support is detachably connected to the upper right connecting piece through an upper right connecting pin, and the upper end of the other inclined support is detachably connected to the upper left connecting piece through an upper left connecting pin. The structure is compact.

[0012] Preferably, both ends of the steel sheath are respectively inserted through two reinforcing pieces. The upper end of one reinforcing piece is welded to the lower surface of the top plate of the upper channel steel part of one upper channel steel, and the lower end is welded to the upper surface of the bottom plate of the upper channel steel part of one upper channel steel. The upper end of the other reinforcing piece is welded to the lower surface of the top plate of the upper channel steel part of the other upper channel steel, and the lower end is welded to the upper surface of the bottom plate of the upper channel steel part of the other upper channel steel. It can improve the connection strength.

[0013] Preferably, both ends of the suspension are connected to the hoisting equipment through a sling respectively. A permanent magnet sleeve is sleeved on the lower end of the sling. The upper end of the permanent magnet sleeve extends beyond the upper channel steel, and the lower end is located below the top plate of the upper channel steel part. A permanent magnet block is fixed on the upper side of the upper channel steel. The permanent magnet block is located between the permanent magnet sleeves on the two slings. The two poles of the permanent magnet block are distributed along the transverse direction of the bridge, and the polarities of the permanent magnet sleeves are distributed along the vertical direction. The polarity of the upper end of the permanent magnet sleeve on one sling is the same as the polarity of the permanent magnet block near the end of the permanent magnet sleeve on one sling, and the polarity of the upper end of the permanent magnet sleeve on the other sling is the same as the polarity of the permanent magnet block near the end of the permanent magnet sleeve on the other sling. When it shakes in the case of contact between the sling and the upper cross beam, the wear can be reduced.

[0014] Advantageous effects: It can be installed and disassembled for recycling, reducing the hoisting cost, and having good reliability and safety during hoisting. Description of the Drawings

[0015] Figure 1 Schematic diagram of the use state of the first embodiment of the present invention;

[0016] Figure 2 Cross-sectional view of the bottom support beam at the connection of the vertical suspenders;

[0017] Figure 3 Cross-sectional view of the upper cross beam at the connection of the vertical suspenders;

[0018] Figure 4 Cross-sectional view of the upper cross beam at the connection of the sling;

[0019] Figure 5 Partial schematic diagram of the second embodiment.

[0020] In the figure: bridge deck 1, left steel beam 2, right steel beam 3, left top plate 4, left vertical plate 5, left bottom plate 6, right top plate 7, right vertical plate 8, right bottom plate 9, lifting hole 10, bottom supporting beam 11, upper cross beam 12, vertical suspender 13, steel sheath 15, suspension pin 16, sling 17, lifting equipment 18, lower connecting pin of suspender 19, upper connecting pin of suspender 20, lower channel steel 21, top plate of lower channel steel part 22, side plate of lower channel steel part 23, bottom plate of lower channel steel part 24, upper reinforcing plate of bottom supporting beam part 25, lower reinforcing plate of bottom supporting beam part 26, reinforcing block of bottom supporting beam part 27, limit block 28, upper channel steel 29, top plate of upper channel steel part 30, side plate of upper channel steel part 31, bottom plate of upper channel steel part 32, upper reinforcing plate of upper cross beam part 33, lower reinforcing plate of upper cross beam part 34, reinforcing block of upper cross beam part 35, reinforcing piece 36, transverse support 37, left lower connecting piece 38, left upper connecting piece 39, right lower connecting piece 40, right upper connecting piece 41, one diagonal support 42, another diagonal support 43, left lower inserting pin 44, right lower inserting pin 45, right upper connecting pin 46, left upper connecting pin 47, permanent magnet sleeve 48, permanent magnet block 49, permanent magnet sleeve on one sling 50, end of permanent magnet block close to permanent magnet sleeve on one sling 51, permanent magnet sleeve on another sling 53, end of permanent magnet sleeve on another sling 52. Detailed implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Embodiment 1, see Figures 1 to 4 , an assembled hanger device based on a π-shaped steel-concrete composite beam. The π-shaped steel-concrete composite beam includes a bridge deck 1 of a concrete structure, a left steel beam 2 and a right steel beam 3. The left steel beam and the right steel beam are distributed along the transverse direction of the bridge and extend along the longitudinal direction of the bridge and are connected to the lower surface of the bridge deck. The left steel beam includes a left top plate 4, a left vertical plate 5 and a left bottom plate 6. The left top plate, the left vertical plate and the left bottom plate are connected together in an "I" shape, and the left top plate is connected to the lower surface of the bridge deck. The right steel beam includes a right top plate 7, a right vertical plate 8 and a right bottom plate 9. The right top plate, the right vertical plate and the right bottom plate are connected together in an "I" shape.

[0023] It includes two hangers distributed along the longitudinal bridge direction and two pairs of hoisting holes 10 distributed along the longitudinal bridge direction arranged on the bridge deck. The left steel girder and the right steel girder are located between the two hoisting holes in the same pair of through holes. The hanger includes a bottom supporting beam 11, an upper cross beam 12 and two vertical suspension rods 13. The lower ends of the two vertical suspension rods are correspondingly connected to the two ends of the bottom supporting beam, and the upper ends are correspondingly connected to the two ends of the upper cross beam. The two vertical suspension rods are correspondingly inserted into the two hoisting holes in a pair of through holes. Both the bottom supporting beam and the upper cross beam extend along the transverse bridge direction. The bottom supporting beam is used to support the lower sides of the left steel girder and the right steel girder. The upper cross beam is located above the bridge deck. There are two lifting holes on the upper cross beam. A steel sheath 15 is inserted into the lifting hole, and a suspension pin 16 is inserted into the steel sheath. The suspension pin is connected to the hoisting equipment 18 through a suspension cable 17.

[0024] The vertical suspension rod is connected to the bottom supporting beam through the lower connecting pin 19 of the suspension rod. The vertical suspension rod is connected to the upper cross beam through the upper connecting pin 20 of the suspension rod. The bottom supporting beam includes two lower channel steels 21. The lower channel steel includes a lower channel steel part top plate 22, a lower channel steel part side plate 23 whose upper end is connected to one end of the lower channel steel part top plate, and a lower channel steel part bottom plate 24 whose one end is connected to the lower end of the lower channel steel part side plate. The vertical suspension rod is located between the lower channel steel part side plates of the two lower channel steels. The vertical suspension rod and the lower channel steel part top plate are located on both sides of the lower channel steel part side plate. The upper ends of the two lower channel steels are welded to the upper reinforcing plate 25 of the bottom supporting beam part, and the lower ends are welded to the lower reinforcing plate 26 of the bottom supporting beam part. The lower connecting pin of the suspension rod is simultaneously penetrated through the lower channel steel part side plates of the two lower channel steels; the two ends of the lower connecting pin of the suspension rod are correspondingly penetrated through two bottom supporting beam part reinforcing blocks 27, and the two bottom supporting beam part reinforcing blocks are correspondingly welded to the lower channel steel part side plates of the two lower channel steels. The bottom supporting beam part reinforcing block is located on the side of the lower channel steel part side plate away from the vertical suspension rod. Two limiting blocks 28 are welded on the bottom supporting beam. The left steel beam and the right steel beam are located between the two limiting blocks. The upper cross beam includes two upper channel steels 29. The upper channel steel includes an upper channel steel part top plate 30, an upper channel steel part side plate 31 whose upper end is connected to one end of the upper channel steel part top plate, and an upper channel steel part bottom plate 32 whose one end is connected to the lower end of the upper channel steel part side plate. The vertical suspension rod is located between the two upper channel steels. The vertical suspension rod and the upper channel steel part top plate are located on both sides of the upper channel steel part side plate. The upper ends of the two upper channel steels are welded to the upper reinforcing plate 33 of the upper cross beam part, and the lower ends are welded to the lower reinforcing plate 34 of the upper cross beam part. The upper connecting pin of the suspension rod is simultaneously penetrated through the upper channel steel part side plates of the two upper channel steels, and the steel sheath is simultaneously penetrated through the upper channel steel part side plates of the two upper channel steels. The two ends of the upper connecting pin of the suspension rod are correspondingly penetrated through two upper cross beam part reinforcing blocks 35, and the two upper cross beam part reinforcing blocks are correspondingly welded to the upper channel steel part side plates of the two upper channel steels. The upper cross beam part reinforcing block is located on the side of the upper channel steel part side plate away from the vertical suspension rod. The two ends of the steel sheath are respectively penetrated through two reinforcing pieces 36. The upper end of one reinforcing piece is welded to the lower surface of the upper channel steel part top plate of one upper channel steel, and the lower end is welded to the upper surface of the upper channel steel part bottom plate of one upper channel steel. The upper end of the other reinforcing piece is welded to the lower surface of the upper channel steel part top plate of the other upper channel steel, and the lower end is welded to the upper surface of the upper channel steel part bottom plate of the other upper channel steel. Both ends of the suspension pin are connected to the hoisting equipment through one of the suspension ropes respectively.

[0025] It further includes a strengthening support frame, which includes a horizontal support 37 and two cross - arranged inclined supports. At the lower inner end of the left steel beam, a lower left connecting piece 38 is welded, and at the upper end, an upper left connecting piece 39 is welded. The lower left connecting piece is welded to the left vertical plate and the left bottom plate at the same time, and the upper left connecting piece is welded to the left vertical plate and the left top plate at the same time. At the lower inner end of the right steel beam, a lower right connecting piece 40 is welded, and at the upper end, an upper right connecting piece 41 is welded. The lower right connecting piece is welded to the right vertical plate and the right bottom plate at the same time, and the upper right connecting piece is welded to the right vertical plate and the right top plate at the same time. The left end of the horizontal support is detachably connected to the lower left connecting piece, and the right end is detachably connected to the lower right connecting piece. The lower end of one inclined support 42 is detachably connected to the lower left connecting piece, and the other end is detachably connected to the upper right connecting piece. The lower end of the other inclined support 43 is detachably connected to the lower right connecting piece, and the other end is connected to the upper left connecting piece. Specifically: the left end of the horizontal support and the lower end of one inclined support are detachably connected to the lower left connecting piece through a lower left pin 44, the right end of the horizontal support and the lower end of the other inclined support are detachably connected to the lower right connecting piece through a lower right pin 45, the upper end of one inclined support is detachably connected to the upper right connecting piece through an upper right connecting pin 46, and the upper end of the other inclined support is detachably connected to the upper left connecting piece through an upper left connecting pin 47.

[0026] The process of lifting the π - shaped steel - concrete composite beam is to lift the lifting cable by the hoisting equipment, so as to lift the π - shaped steel - concrete composite beam to the set position through the bottom support beam, and then remove the assembled hanging device. In this technical solution, when lifting, it will not produce a large extrusion effect on the bridge deck, and it is not easy to cause damage to the π - shaped steel - concrete composite beam. At the same time, the lifting holes can play a limiting role.

[0027] In the second embodiment, the difference from the first embodiment is:

[0028] See Figure 5 , a permanent magnet sleeve 48 is sleeved at the lower end of the lifting cable. The upper end of the permanent magnet sleeve extends beyond the upper channel steel, and the lower end is located below the top plate of the upper channel steel part. A permanent magnet block 49 is fixed on the upper side of the upper channel steel. The permanent magnet block is located between the permanent magnet sleeves on the two lifting cables on the same suspension pin. The two poles of the permanent magnet block are distributed along the transverse bridge direction, and the polarities of the permanent magnet sleeves are distributed along the up - down direction. The polarity of the upper end of the permanent magnet sleeve 50 on one lifting cable is the same as the polarity of the permanent magnet block near the end 51 of the permanent magnet sleeve on one lifting cable, and the polarity of the upper end of the permanent magnet sleeve 53 on the other lifting cable is the same as the polarity of the permanent magnet block near the end 52 of the permanent magnet sleeve on the other lifting cable.

[0029] It should be noted that, in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0030] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An assembled hanger device based on a π-shaped steel-concrete composite beam, wherein the π-shaped steel-concrete composite beam comprises a bridge deck of a concrete structure, a left steel beam and a right steel beam, wherein the left steel beam and the right steel beam are distributed in the transverse direction of the bridge and extend in the longitudinal direction of the bridge and are connected to the lower surface of the bridge deck, characterized in that: It includes two hangers distributed along the longitudinal direction of the bridge and two pairs of lifting holes distributed along the longitudinal direction of the bridge arranged on the bridge deck. The left steel beam and the right steel beam are located between the two lifting holes in the same pair of penetration holes. The hanger includes a bottom supporting beam, an upper cross beam and two vertical hangers. The lower ends of the two vertical hangers are connected to the two ends of the bottom supporting beam one by one, and the upper ends are connected to the two ends of the upper cross beam one by one. The two vertical hangers are penetrated into two penetration holes in a pair of penetration holes one by one. The bottom supporting beam and the upper cross beam both extend along the transverse direction of the bridge, and the bottom is used for supporting the lower side of the left steel beam and the right steel beam. The upper cross beam is located above the bridge deck. Two lifting holes are provided on the upper cross beam. Steel sheaths are penetrated in the lifting holes. Hanging pins are penetrated in the steel sheaths. The hanging pins are connected to the lifting equipment through slings.

2. The assembled hanger device based on the π-shaped steel-concrete composite beam according to claim 1 is characterized in that: The vertical suspension rod is connected with the bottom support beam through a lower connecting pin, and the vertical suspension rod is connected with the upper cross beam through an upper connecting pin.

3. The assembled hanger device based on the π-shaped steel-concrete composite beam according to claim 2 is characterized in that: The bottom supporting beam comprises two lower channel steels, the lower channel steels comprise a lower channel steel top plate, a lower channel steel side plate whose upper end is connected to one end of the lower channel steel top plate, and a lower channel steel bottom plate whose one end is connected to the lower end of the lower channel steel side plate. The vertical hanging rod is located between the lower channel steel side plates of the two lower channel steels. The vertical hanging rod and the lower channel steel top plate are located on both sides of the lower channel steel side plates. The upper ends of the two lower channel steels are welded to the upper reinforcing plate of the bottom supporting beam, and the lower ends are welded to the lower reinforcing plate of the bottom supporting beam. The lower connecting pins are simultaneously penetrated through the lower channel steel side plates of the two lower channel steels. The upper crossbeam comprises two The upper channel steel comprises an upper channel steel top plate, an upper channel steel side plate whose upper end is connected to one end of the upper channel steel top plate and an upper channel steel bottom plate whose one end is connected to the lower end of the upper channel steel side plate. The vertical hanger is located between the two upper channel steels. The vertical hanger and the upper channel steel top plate are located on both sides of the upper channel steel side plate. The upper ends of the two upper channel steels are welded to the upper reinforcing plate of the upper cross beam portion and the lower ends are welded to the upper reinforcing plate of the upper cross beam portion. The upper connecting pins are simultaneously passed through the upper channel steel side plates of the two upper channel steels, and the steel sheaths are simultaneously passed through the upper channel steel side plates of the two upper channel steels.

4. The assembled hanger device based on the π-shaped steel-concrete composite beam according to claim 3 is characterized in that: The two ends of the lower connecting pin are correspondingly passed through the two bottom supporting beam reinforcement blocks, and the two bottom supporting beam reinforcement blocks are correspondingly welded to the lower channel steel side plates of the two lower channel steels; the two ends of the upper connecting pin are correspondingly passed through the two upper cross beam reinforcement blocks, and the two upper cross beam reinforcement blocks are correspondingly welded to the upper channel steel side plates of the two upper channel steels.

5. The assembled hanger device based on the π-shaped steel-concrete composite beam according to claim 4 is characterized in that: The bottom supporting beam reinforcement block is located on a side of the lower channel steel side plate away from the vertical suspension rod, and the upper cross beam reinforcement block is located on a side of the upper channel steel side plate away from the vertical suspension rod.

6. The assembled hanger device based on the π-shaped steel-concrete composite beam according to claim 1, 2, 3, 4 or 5, characterized in that: Two limiting blocks are welded on the bottom supporting beam, and the left steel beam and the right steel beam are located between the two limiting blocks.

7. The assembled hanger device based on the π-shaped steel-concrete composite beam according to claim 1, 2, 3, 4 or 5, characterized in that: It also includes a reinforcing support frame, the left steel beam includes a left top plate, a left vertical plate and a left bottom plate, the left top plate, the left vertical plate and the left bottom plate are connected together in an "I" shape, the right steel beam includes a right top plate, a right vertical plate and a right bottom plate, the right top plate, the right vertical plate and the right bottom plate are connected together in an "I" shape, the reinforcing support frame includes a transverse support and two cross-arranged oblique supports, a left lower connecting piece is welded to the inner lower end of the left steel beam, and a left upper connecting piece is welded to the upper end, the left lower connecting piece is welded to the left vertical plate and the left bottom plate at the same time, and the left upper connecting piece is welded to the left vertical plate and the left top plate at the same time, A right lower connecting piece is welded to the inner lower end of the right steel beam, and an upper right connecting piece is welded to the upper end. The lower right connecting piece is welded to the right vertical plate and the right bottom plate at the same time, and the upper right connecting piece is welded to the right vertical plate and the right top plate at the same time; the left end of the horizontal support is detachably connected to the left lower connecting piece, and the right end is detachably connected to the right lower connecting piece, the lower end of one oblique support is detachably connected to the left lower connecting piece, and the other end is detachably connected to the right upper connecting piece, the lower end of another oblique support is detachably connected to the right lower connecting piece, and the other end is connected to the left upper connecting piece.

8. The assembled hanger device based on the π-shaped steel-concrete composite beam according to claim 7 is characterized in that: The left end of the horizontal support and the lower end of an inclined support are detachably connected to the lower left connecting piece through a lower left pin, the right end of the horizontal support and the lower end of another inclined support are detachably connected to the lower right connecting piece through a lower right pin, the upper end of one inclined support is detachably connected to the upper right connecting piece through an upper right connecting pin, and the upper end of another inclined support is detachably connected to the upper left connecting piece through an upper left connecting pin.

9. The assembled hanger device based on the π-shaped steel-concrete composite beam according to claim 3, 4 or 5, characterized in that: The two ends of the steel sheath are respectively passed through two reinforcement plates, the upper end of one reinforcement plate is welded to the lower surface of the top plate of the upper channel steel part of an upper channel steel, and the lower end is welded to the upper surface of the bottom plate of the upper channel steel part of an upper channel steel, the upper end of the other reinforcement plate is welded to the lower surface of the top plate of the upper channel steel part of another upper channel steel, and the lower end is welded to the upper surface of the bottom plate of the upper channel steel part of another upper channel steel.

10. The assembled hanger device based on the π-shaped steel-concrete composite beam according to claim 9 is characterized in that: The two ends of the suspension pin are respectively connected to the lifting equipment through one of the slings, and a permanent magnet sleeve is sleeved on the lower end of the sling, the upper end of the permanent magnet sleeve exceeds the upper channel steel, and the lower end is located below the top plate of the upper channel steel, and a permanent magnet block is fixed on the upper side of the upper channel steel, and the permanent magnet block is located between the permanent magnet sleeves on the two slings, and the two poles of the permanent magnet block are distributed along the transverse bridge direction, and the polarity of the permanent magnet sleeve is distributed along the up and down direction, and the polarity of the upper end of the permanent magnet sleeve on one sling is the same as the polarity of the permanent magnet block near the permanent magnet sleeve end on one sling, and the polarity of the upper end of the permanent magnet sleeve on the other sling is the same as the polarity of the permanent magnet block near the permanent magnet sleeve end on the other sling.

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