Fabricated steel truss-concrete composite floor system and assembling method thereof

Abstract

The invention provides an assembly type steel truss-concrete composite floor system and an assembly method thereof, and relates to the technical field of floor system buildings. The structure comprises at least one combination box, the combination box comprises a box beam, at least one upper floor slab and at least one lower floor slab, the box beam is arranged on the bearing column, an upper containing groove is formed in the top of the box beam, a lower containing groove is formed in the bottom of the box beam, and the upper floor slab and the lower floor slab are arranged in the upper containing groove. The upper floor slab is arranged in the upper containing groove and connected with the box beam, and the lower floor slab is arranged in the lower containing groove and connected with the box beam. The lower bottom surface of the floor system does not need to be leveled by workers through operations such as ceiling mounting in the later period, and the effect of low construction burden is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of floor construction, and in particular to an assembled steel truss-concrete composite floor and an assembly method thereof. Background Art

[0002] The floor slab is the floor structure in a multi-story house. On the one hand, it bears various vertical loads and transmits them to the load-bearing walls or load-bearing columns. On the other hand, it uses the planar stiffness of the reinforced concrete slab to connect different load-bearing walls into a whole, jointly bearing horizontal loads and forming a spatial force-bearing structure that works as a whole.

[0003] The existing floor construction mostly involves laying prefabricated main beams on scaffolding, then laying prefabricated secondary beams on the main beams, and finally pouring the floor slabs between the secondary beams and the main beams.

[0004] However, due to the large height difference between the main beam and the secondary beam, the bottom surface of the floor slab will be uneven after pouring. Workers need to install the ceiling and other operations later to level the bottom surface of the floor slab, which adds a lot of extra burden to the construction.

[0005] In view of this, it is necessary to provide an assembled steel truss-concrete composite floor and an assembly method thereof. Summary of the Invention

[0006] In order to solve the problem that the lower surface of the existing floor construction is uneven and needs to be leveled, which adds additional burden to the construction, the present application provides an assembled steel truss-concrete composite floor and its assembly method.

[0007] In a first aspect, the present application provides an assembled steel truss-concrete composite floor, which adopts the following technical solution: comprising at least one composite box, the composite box including a box beam, at least one upper floor slab, and at least one lower floor slab, the box beam being arranged on the load-bearing column, the top of the box beam being provided with an upper receiving groove, and the bottom of the box beam being provided with a lower receiving groove; The upper floor plate is arranged in the upper receiving groove and connected to the box beam; The lower floor plate is arranged in the lower accommodating groove and connected to the box beam.

[0008] By adopting the above technical solution, when constructing the floor, workers can first install the upper floor slab and the lower floor slab on the box beam, so that the upper floor slab, the lower floor slab and the box beam are assembled to form a combination box, and then fix each combination box to the top of the load-bearing column in turn and combine these combination boxes to form the floor. This can not only realize the rapid construction of the floor, but also only need to ensure that the bottom of each load-bearing column is flush so that the lower floor slabs at the bottom of each combination box are on the same plane. As a result, workers do not need to perform operations such as installing a suspended ceiling to level the lower surface of the floor, which greatly reduces the construction burden.

[0009] Specifically, the upper accommodating groove and the lower accommodating groove both lead to the interior of the box beam, a lower abutting ring is circumferentially provided on the sidewall of the lower accommodating groove, a lower connecting through-hole is provided on the lower floor plate, and the lower floor plate can be connected to the box beam via a pin passing through the lower connecting through-hole and connected to the top of the lower abutting ring; An upper abutment ring is circumferentially provided on the side wall of the upper accommodating groove, an upper connecting through hole is provided on the upper floor plate, and the upper floor plate can be connected to the box beam via a pin passing through the upper connecting through hole and the top of the upper abutment ring.

[0010] By adopting the above technical solution, workers can first place the lower floor slab from the notch of the upper receiving groove into the interior of the box beam and abut it with the lower abutment ring, then use pins to connect the lower floor slab and the lower abutment ring, then place the upper floor slab from the notch of the upper receiving groove into the interior of the box beam and abut it with the upper abutment ring, and finally use pins to connect the upper floor slab and the upper abutment ring.

[0011] Furthermore, a block is provided on one side wall of the box beam, and a slot adapted to the block is provided on the other side wall of the box beam, and the top end of the slot extends to the top of the box beam to form an opening.

[0012] By adopting the above technical solution, the card block can cooperate with the card slot to connect two adjacent combination boxes to form a whole.

[0013] Furthermore, the combination box also includes a steel bar clamp, and at least one beard bar extends from the column body at the top of the load-bearing column, and the beard bar is provided with an external thread. The bottom of the box beam is provided with at least one through-bar hole leading to the interior of the box beam, and the steel bar clamp is provided with at least one bar clamping hole. The through-bar hole and the bar clamping hole correspond to the beard bar one by one. The beard bar can pass through the corresponding through-bar hole and the bar clamping hole in sequence and be screwed to the bolt, and the bottom wall of the box beam is abutted between the steel bar clamp and the load-bearing column.

[0014] By adopting the above technical solution, workers can firmly connect the combination box to the load-bearing column through the steel bar chuck.

[0015] Furthermore, an operation hole leading to the interior of the box beam is opened on the outer side wall of the box beam, and the steel bar chuck can pass through the operation hole and enter the interior of the box beam.

[0016] By adopting the above technical solution, after placing the combined box on the load-bearing column, workers can send the steel bar chuck into the box beam through the operation hole for installation.

[0017] Furthermore, it also includes a lifting frame, the top of which can support the combined box and drive the combined box to rise and fall, and the bottom of the lifting frame is provided with rollers.

[0018] By adopting the above technical solution, workers can transport the assembled box beams through the lifting frame.

[0019] Furthermore, the lifting frame includes a bottom plate, a top plate, a fixed scissor fork rod, a movable scissor fork rod and a driving member, the roller is arranged at the bottom of the bottom plate, the bottom end of the fixed scissor fork rod is hinged on the top plate surface of the bottom plate, the top end of the fixed scissor fork rod is abutted against the bottom plate surface of the top plate and can slide along the top plate, the top plate surface of the top plate can abut against the bottom of the combination box, the top end of the movable scissor fork rod is hinged on the bottom plate surface of the top plate, the middle part of the rod body of the movable scissor fork rod is hinged to the middle part of the rod body of the fixed scissor fork rod, and the driving member is connected to the bottom end of the movable scissor fork rod and can drive the bottom end of the movable scissor fork rod close to or away from the hinge of the fixed scissor fork rod and the bottom plate.

[0020] By adopting the above technical solution, the driving member can drive the top plate to rise and fall by driving the bottom end of the movable scissor rod to approach or move away from the hinge between the fixed scissor rod and the bottom plate.

[0021] Furthermore, the driving member includes a movable shaft, a telescopic cylinder and a control valve, the bottom end of the movable scissor fork rod is hinged on the movable shaft, the cylinder body of the telescopic cylinder is arranged on the top plate surface of the base plate, the piston rod of the telescopic cylinder extends from one side of the telescopic cylinder close to the hinge of the fixed scissor fork rod and the base plate, and is connected to the movable shaft, and the cylinder body of the telescopic cylinder is provided with a liquid hole leading to the interior of the cylinder body; The control valve includes a valve body, a valve core and a rotating rod. The valve body is provided with a liquid transmission through hole, and a receiving groove is provided on the middle hole wall of the liquid transmission through hole. The valve core is arranged inside the receiving groove and divides the liquid transmission through hole into a near-cylinder section and a far-cylinder section. The liquid transmission hole is connected to the port of the near-cylinder section, and the port of the far-cylinder section is connected to the hydraulic system through a pipeline and can receive the pressure transmission fluid output by the hydraulic system. The valve core is relatively provided with a check hole and a reflux hole centered on its own rotating axis. A one-way valve is provided in the check hole. The rotating rod passes through the through hole provided on the valve body and extends into the receiving groove and is connected to the rotating axis of the valve core. The rotating rod can drive the check hole or the reflux hole on the valve core to enter the liquid transmission through hole through self-rotation. When the check hole is located in the liquid transmission through hole, the one-way valve can prevent the pressure transmission fluid in the near-cylinder section from flowing into the far-cylinder section.

[0022] By adopting the above technical solution, when the top plate needs to be raised, the worker can first rotate the rotating rod until the check hole is located in the liquid transfer through hole, and then start the hydraulic system to input pressure transfer fluid into the telescopic cylinder. At this time, the pressure transfer fluid can drive the piston rod of the telescopic cylinder to extend from the cylinder body and push the bottom end of the movable scissor fork rod close to the hinge between the fixed scissor fork rod and the bottom plate, so that the top plate rises; and after the hydraulic system stops infusing fluid, the one-way valve can prevent the pressure transfer fluid in the near cylinder section from flowing into the far cylinder section, so that the top plate can remain at a certain height unchanged; when the top plate needs to be lowered, the worker can rotate the rotating rod until the reflux hole is located in the liquid transfer through hole, at this time the top plate descends under the action of gravity and drives the bottom end of the movable scissor fork rod away from the hinge between the fixed scissor fork rod and the bottom plate, thereby causing the piston rod of the telescopic cylinder to retract into the cylinder body, and the pressure transfer fluid in the telescopic cylinder passes through the near cylinder section and the far cylinder section and flows back to the hydraulic system.

[0023] Furthermore, the control valve further comprises a mounting cylinder, a clamping joint and an elastic member, the shaft of the rotating rod is provided with a check clamping hole and a reflux clamping hole adapted to the clamping joint, the mounting cylinder is provided on the valve core, one end of the clamping joint is inserted into the mounting cylinder and can slide along the mounting cylinder, the elastic member is provided between the clamping joint and the inner wall of the mounting cylinder and can apply a force to the clamping joint to move closer to the rotating rod; When the check hole is located in the liquid transfer through hole, the card connector can be inserted into the check hole; when the reflux hole is located in the liquid transfer through hole, the card connector can be inserted into the reflux hole.

[0024] By adopting the above technical solution, the clamping joint can cooperate with the check clamping hole or the backflow clamping hole and prompt the worker whether the rotating rod has rotated the valve core into place.

[0025] The second aspect of the present application provides a method for assembling a prefabricated steel truss-concrete composite floor, which adopts the following technical solution: S1. First, place the lower floor slab through the notch of the upper receiving groove into the interior of the box beam and abut it against the lower abutting ring. Then, use pins to connect the lower floor slab and the lower abutting ring. Next, place the box beam on the top plate of the lifting frame. Next, place the upper floor slab through the notch of the upper receiving groove into the interior of the box beam and abut it against the upper abutting ring. Finally, use pins to connect the upper floor slab and the upper abutting ring. S2. First, rotate the rotating rod to a state where the clamping joint is inserted into the non-return clamping hole, start the hydraulic system to input pressure-transmitting fluid into the telescopic cylinder, and after the bottom of the box beam is higher than the top of the beard rib on the top of the load-bearing column, close the hydraulic system, and then translate the lifting frame until the reinforcement hole on the box beam is located directly above the beard rib, then rotate the rotating rod to a state where the clamping joint is inserted into the return clamping hole, so that the piston rod of the telescopic cylinder is retracted into the cylinder body and the top plate of the lifting frame is lowered. After the top plate is separated from the bottom of the box beam, move the lifting frame away from under the box beam, and finally install the steel bar clamp and bolts on the beard rib inside the box beam through the operating hole; S3, repeat S1 to obtain another combination box to be installed, then rotate the rotating rod to the state that the card joint is inserted into the non-return card hole, start the hydraulic system to input pressure transmission fluid into the telescopic cylinder, wait for the bottom of the card block of the installed combination box to be higher than the top of the installed box beam, then turn off the hydraulic system, and then translate the lifting frame until the reinforcement hole on the combination box to be installed is located directly above the corresponding beard reinforcement and the card block on the combination box to be installed is located directly above the card groove of the installed box beam, then rotate the rotating rod to the state that the card joint is inserted into the return card hole, so that the piston rod of the telescopic cylinder is retracted into the cylinder body and the top plate of the lifting frame is lowered, after the top plate is separated from the bottom of the combination box, remove the lifting frame from the bottom of the combination box, and then install the steel bar clamp and bolts on the beard reinforcement inside the combination box from the operating hole; S4. Repeat S3 until all the combination boxes are assembled to form a floor.

[0026] By adopting the above technical solution, it is possible to realize the rapid construction of the floor slab, and it is only necessary to ensure that the bottoms of the load-bearing columns are flush so that the lower floor slabs at the bottom of each combination box are on the same plane, so that workers do not need to perform operations such as installing the ceiling later to level the lower bottom surface of the floor slab, which greatly reduces the construction burden; and because the combination box needs to accurately ensure the precise alignment between the rib holes and the beard ribs and between the clamping blocks and the clamping slots when lowering, workers can quickly rotate the rotating rod to the state where the clamping joint is inserted into the check hole when they find deviations between the rib holes and the beard ribs or between the clamping blocks and the clamping slots, so that the one-way valve can prevent the pressure-transmitting fluid in the near-cylinder section from flowing into the far-cylinder section, so that the combination box on the top plate maintains the current height unchanged, which is convenient for workers to perform secondary calibration, so that the installation between the rib holes and the beard ribs or between the clamping blocks and the clamping slots is not prone to deviations.

[0027] In summary, this application includes at least one of the following beneficial technical effects: 1. It comprises at least one combined box, which comprises a box beam, at least one upper floor slab and at least one lower floor slab, the box beam being arranged on the load-bearing columns, an upper receiving groove being provided on the top of the box beam, and a lower receiving groove being provided on the bottom of the box beam, the upper floor slab being arranged in the upper receiving groove and connected to the box beam, and the lower floor slab being arranged in the lower receiving groove and connected to the box beam, so that when constructing the floor slab, workers can first install the upper floor slab and the lower floor slab on the box beam, so that the upper floor slab, the lower floor slab and the box beam are assembled to form a combined box, and then the combined boxes are fixed to the tops of the load-bearing columns one by one in turn, and the floor slab is formed by splicing and assembling these combined boxes, which can not only realize the rapid construction of the floor slab, but also only need to ensure that the bottoms of the load-bearing columns are flush so that the lower floor slabs at the bottom of each combined box are on the same plane, so that workers do not need to perform operations such as installing a suspended ceiling to level the lower bottom surface of the floor slab later, thereby greatly reducing the construction burden; 2. The driving part includes a moving shaft, a telescopic cylinder and a control valve. The bottom end of the movable scissor fork rod is hinged on the moving shaft. The cylinder body of the telescopic cylinder is arranged on the top plate surface of the base plate. The piston rod of the telescopic cylinder extends from the side of the telescopic cylinder close to the hinge of the fixed scissor fork rod and the base plate and is connected to the moving shaft. The cylinder body of the telescopic cylinder is provided with a liquid through hole leading to the inside of the cylinder body. The control valve includes a valve body, a valve core and a rotating rod. The valve body is provided with a liquid through hole, and a receiving groove is provided on the middle hole wall of the liquid through hole. The valve core is arranged inside the receiving groove and divides the liquid transmission hole into a near-cylinder section and a far-cylinder section. The liquid transmission hole is connected to the port of the near-cylinder section. The port of the far-cylinder section is connected to the hydraulic system through a pipeline and can receive the pressure transmission liquid output by the hydraulic system. A check hole and a reflux hole are relatively opened on the valve core with its own rotating shaft as the center. A one-way valve is arranged in the check hole. The rotating rod passes through the through hole opened on the valve body and extends into the receiving groove and is connected to the rotating shaft of the valve core. The rotating rod can drive the check hole on the valve core through self-rotation. Or the reflux hole enters the liquid transfer hole. When the check hole is located in the liquid transfer hole, the one-way valve can prevent the pressure transfer fluid in the near cylinder section from flowing into the far cylinder section. So that when the top plate needs to be raised, the worker can first rotate the rotating rod until the check hole is located in the liquid transfer hole, and then start the hydraulic system to input pressure transfer fluid into the telescopic cylinder. At this time, the pressure transfer fluid can drive the piston rod of the telescopic cylinder to extend from the cylinder body and push the bottom end of the scissor fork rod close to the hinge of the fixed scissor fork rod and the bottom plate, so that the top plate rises. After the hydraulic system stops pumping fluid, the one-way valve can prevent the pressure-transmitting fluid in the near-cylinder section from flowing into the far-cylinder section, so that the top plate can remain at a certain height; when the top plate needs to be lowered, the worker can rotate the rotating rod until the reflux hole is located in the fluid-transmitting through hole. At this time, the top plate descends under the action of gravity and drives the bottom end of the movable scissor rod away from the hinge between the fixed scissor rod and the bottom plate, thereby retracting the piston rod of the telescopic cylinder into the cylinder body, and the pressure-transmitting fluid in the telescopic cylinder passes through the near-cylinder section and the far-cylinder section and flows back to the hydraulic system. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1This is a three-dimensional diagram of an assembled steel truss-concrete composite floor of the present application, in which only one composite box and one box beam are shown; Figure 2 yes Figure 1 Front view of Figure 3 It is along Figure 2 A schematic cross-sectional view taken along the AA direction, showing only a portion of the box beam; Figure 4 yes Figure 3 A schematic enlarged view of area B, showing the steel bar clamp; Figure 5 yes Figure 3 Schematic enlargement of area C, showing the control valve.

[0029] 1. Assembly box; 11. Box beam; 111. Lower abutment ring; 112. Upper abutment ring; 113. Clamping block; 114. Operating hole; 12. Upper floor; 13. Lower floor; 14. Steel bar chuck; 2. Load-bearing column; 21. Beard bar; 3. Pin; 4. Lifting frame; 41. Bottom plate; 411. Roller; 42. Top plate; 43. Fixed scissor fork rod; 44. Moving scissor fork rod; 45. Driving part; 451. Moving shaft; 452. Telescopic cylinder; 453. Control valve; 4531. Valve body; 4532. Valve core; 4533. Rotating rod; 4534. One-way valve; 4535. Mounting cylinder; 4536. Card joint; 4537. Elastic part; 46. Slider. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-5 For further explanation: See also Figure 1 and Figure 2In one embodiment, an assembled steel truss-concrete composite floor is installed on the bearing columns of the top floor of a building. The assembled steel truss-concrete composite floor specifically includes a plurality of assembly boxes 1 and a lifting frame 4. Each assembly box 1 includes a box beam 11, three upper floor slabs 12, three lower floor slabs 13 and two steel bar clamps 14. The box beam 11 can be made of steel, and the upper floor slabs 12 and the lower floor slabs 13 can be prefabricated reinforced concrete slabs; an upper receiving groove is provided on the top of the box beam 11, and a lower receiving groove is provided on the bottom of the box beam 11. Both the upper receiving groove and the lower receiving groove lead to the interior of the box beam 11. A circle of lower abutment rings 111 are provided on the side wall of the lower receiving groove in the circumferential direction, and a lower receiving ring 111 is provided on the lower floor slab 13. The connecting through-hole allows workers to first place the lower floor slab 13 from the notch of the upper receiving groove into the interior of the box beam 11 and abut it with the lower abutment ring 111, and then pass the pin 3 through the lower connecting through-hole and weld it to the lower abutment ring 111 to connect the lower floor slab 13 and the lower abutment ring 111; a circle of upper abutment rings 112 are circumferentially provided on the side wall of the upper receiving groove, and an upper connecting through-hole is provided on the upper floor slab 12, so that the user can place the upper floor slab 12 from the notch of the upper receiving groove into the interior of the box beam 11 and abut it with the upper abutment ring 112 after installing all three lower floor slabs 13, and then pass the pin 3 through the upper connecting through-hole and weld it to the upper abutment ring 112 to connect the upper floor slab 12 and the upper abutment ring 112.

[0031] See also Figure 2 and Figure 3 The top of each slot extends to the top of the box beam 11 to form an opening, so that the user can connect two adjacent combined boxes 1 to form a whole by inserting the three blocks 113 into the corresponding slots. Specifically, the blocks 113 and the slots can be arranged on the two wide side walls of the box beam 11 as shown in the drawings, or on the two long side walls of the box beam 11, or on the two long side walls and the two wide side walls of the box beam 11. When the side wall of a box beam 11 needs to abut the wall at the edge of the building, there is no need to arrange the blocks 113 on the side wall. The blocks 113 and the slots can also be T-shaped blocks and T-shaped slots or dovetail blocks and dovetail slots.

[0032] See also Figure 3 and Figure 4Each combined box 1 corresponds to two load-bearing columns 2, and the top of each load-bearing column 2 has a plurality of beard ribs 21 extending from the column body, and each beard rib 21 is provided with an external thread. The bottom of the box beam 11 is provided with a plurality of through-rib holes leading to the interior of the box beam 11 at both ends along its own length direction. The through-rib holes at each end of the box beam 11 correspond one-to-one to the beard rib 21 of a load-bearing column 2; a plurality of retaining holes are provided on the steel bar clamp 14, and a retaining hole on each steel bar clamp 14 corresponds one-to-one to the beard rib 21 of a load-bearing column 2; the clamping block 113 located in the middle of the three clamping blocks 113 has a hole leading to the box beam 1 1, so that the user can put the steel bar clamp 14 through the operating hole 114 on the clamping block 113 into the box beam 11 and connect it with the beard bar 21 on the load-bearing column 2; the bottom of the clamping slot located in the middle of the three clamping slots is provided with an operating hole 114 leading to the interior of the box beam 11, so that the user can put the steel bar clamp 14 through the operating hole 114 in the clamping slot into the box beam 11 and connect it with the beard bar 21 on the load-bearing column 2, and then sequentially pass the beard bar 21 through the corresponding reinforcement holes and reinforcement clamping holes and screw them with bolts, and then abut the bottom wall of the box beam 11 between the steel bar clamp 14 and the load-bearing column 2.

[0033] See also Figure 4 and Figure 5 The lifting frame 4 includes a bottom plate 41, a top plate 42, a pair of fixed scissor fork rods 43, a pair of movable scissor fork rods 44, a slider 46 and a driving member 45. The roller 411 is arranged at the bottom of the bottom plate 41. The bottom ends of the pair of fixed scissor fork rods 43 are relatively hinged on the top plate surface of the bottom plate 41. The top of each fixed scissor fork rod 43 is hinged on the slider 46. The top of the slider 46 abuts against the bottom of the top plate 42 and can slide along the top plate 42. The top plate surface of the top plate 42 can abut against the bottom of the combination box 1. The movable scissor fork rods 44 correspond to the fixed scissor fork rods 43 one by one. The middle part of the rod body of each movable scissor fork rod 44 is hinged to the middle part of the rod body of the corresponding fixed scissor fork rod 43.

[0034] See also Figure 4 and Figure 5The driving member 45 includes a moving shaft 451, a telescopic cylinder 452 and a control valve 453. The bottom end of each movable scissor fork rod 44 is hinged on the moving shaft 451. The top ends of a pair of movable scissor fork rods 44 are relatively hinged on the bottom plate surface of the top plate 42. The cylinder body of the telescopic cylinder 452 is arranged on the top plate surface of the bottom plate 41. The piston rod of the telescopic cylinder 452 extends from one side of the telescopic cylinder 452 near the hinge point of the fixed scissor fork rod 43 and the bottom plate 41 and is connected to the moving shaft 451. The cylinder body of the telescopic cylinder 452 is provided with a liquid hole leading to the inside of its own cylinder body; the control valve 45 3 includes a valve body 4531, a valve core 4532, a rotating rod 4533, a one-way valve 4534, a mounting tube 4535, a clamping joint 4536 and an elastic member 4537. The valve body 4531 is provided with a liquid transmission hole. A receiving groove is provided on the middle hole wall of the liquid transmission hole. The valve core 4532 is arranged inside the receiving groove and divides the liquid transmission hole into a near-cylinder section and a far-cylinder section. The liquid transmission hole is connected to the port of the near-cylinder section. The port of the far-cylinder section is connected to the hydraulic system through a pipeline and can receive the pressure transmission fluid output by the hydraulic system. The valve core 4532 is relatively open with its own rotation axis as the center. A check hole and a reflux hole are provided, and the one-way valve 4534 is provided in the check hole. The rotating rod 4533 extends through the through hole opened on the valve body 4531 into the interior of the accommodating groove and is connected to the rotating shaft of the valve core 4532, and the rotating rod 4533 can enter the liquid transmission hole through the self-rotation driving valve core 4532. When the check hole is located in the liquid transmission hole, the one-way valve 4534 can prevent the pressure transmission liquid in the near cylinder section from flowing into the far cylinder section; a check hole and a reflux hole that are compatible with the clamping joint 4536 are relatively opened on the rod body of the rotating rod 4533, The mounting cylinder 4535 is arranged on the valve core 4532, one end of the clamping joint 4536 is inserted into the mounting cylinder 4535 and can slide along the mounting cylinder 4535, and the elastic member 4537 is arranged between the clamping joint 4536 and the inner wall of the mounting cylinder 4535. The elastic member 4537 can be a compression spring so as to apply a force to the clamping joint 4536 close to the rotating rod 4533; when the check hole is located in the liquid transfer hole, the clamping joint 4536 can be inserted into the check hole, and when the reflux hole is located in the liquid transfer hole, the clamping joint 4536 can be inserted into the reflux hole.

[0035] The operating principle of the lifting frame 4 of this application is: When the top plate 42 needs to be raised, the worker can first rotate the rotating rod 4533 to the state where the card joint 4536 is inserted into the check card hole. At this time, the check hole is located in the liquid transmission hole. Then the hydraulic system is started to input pressure transmission fluid into the telescopic cylinder 452. At this time, the pressure transmission fluid can drive the piston rod of the telescopic cylinder 452 to extend from the cylinder body and push the bottom end of the scissor fork rod 44 close to the hinge between the fixed scissor fork rod 43 and the bottom plate 41, so that the top plate 42 rises; and after the hydraulic system stops infusing fluid, the one-way valve 4534 can prevent the pressure transmission fluid in the near-cylinder section Flows into the distal cylinder section so that the top plate 42 can remain at a certain height; when the top plate 42 needs to be lowered, the worker can rotate the rotating rod 4533 to make the card joint 4536 inserted into the reflux card hole. At this time, the reflux hole is located in the liquid transfer hole, and the top plate 42 will drop under the action of gravity and drive the bottom end of the movable scissor fork rod 44 away from the hinge between the fixed scissor fork rod 43 and the bottom plate 41, thereby retracting the piston rod of the telescopic cylinder 452 into the cylinder body, and the pressure transfer fluid in the telescopic cylinder 452 passes through the proximal cylinder section and the distal cylinder section and flows back to the hydraulic system.

[0036] The implementation principle of the assembled steel truss-concrete composite floor in this application is: When constructing the floor, workers can first install the upper floor 12 and the lower floor 13 on the box beam 11, so that the upper floor 12, the lower floor 13 and the box beam 11 are assembled to form a combination box 1, and then the combination boxes 1 are placed and fixed to the top of the load-bearing column 2 one by one through the lifting frame 4, and then these combination boxes 1 are spliced and combined to form the floor. This can not only realize the rapid construction of the floor, but also only need to ensure that the bottom of each load-bearing column 2 is flush so that the lower floor 13 at the bottom of each combination box 1 is on the same plane, so that workers do not need to perform operations such as installing the ceiling later to level the lower bottom surface of the floor, which greatly reduces the construction burden.

[0037] Based on the structure of the above-mentioned prefabricated steel truss-concrete composite floor, the second aspect of the present application further provides a method for assembling the prefabricated steel truss-concrete composite floor. The method is implemented using the above-mentioned prefabricated steel truss-concrete composite floor, and the method specifically includes: S1. First, place the lower floor slab 13 through the notch of the upper receiving groove into the box beam 11 and abut it against the lower abutting ring 111. Then, use the pin 3 to connect the lower floor slab 13 and the lower abutting ring 111. Next, place the box beam 11 on the top plate 42 of the lifting frame 4. Next, place the upper floor slab 12 through the notch of the upper receiving groove into the box beam 11 and abut it against the upper abutting ring 112. Finally, use the pin 3 to connect the upper floor slab 12 and the upper abutting ring 112. S2. First, rotate the rotating rod 4533 to the state where the clamping joint 4536 is inserted into the non-return clamping hole, start the hydraulic system to input pressure-transmitting fluid into the telescopic cylinder 452, and turn off the hydraulic system after the bottom of the box beam 11 is higher than the top of the beard rib 21 at the top of the load-bearing column 2. Then, translate the lifting frame 4 until the reinforcement hole on the box beam 11 is located directly above the beard rib 21. Then, rotate the rotating rod 4533 to the state where the clamping joint 4536 is inserted into the return clamping hole, so that the piston rod of the telescopic cylinder 452 is retracted into the cylinder body and the top plate 42 of the lifting frame 4 is lowered. After the top plate 42 is separated from the bottom of the box beam 11, move the lifting frame 4 away from the bottom of the box beam 11, and finally install the steel bar clamping disc 14 and bolts on the beard rib 21 inside the box beam 11 through the operating hole 114. After the top plate 42 is separated from the bottom of the combined box 1, the lifting frame 4 is removed from the bottom of the combined box 1, and the steel bar clamp 14 and bolts are installed on the steel bar 21 inside the combined box 1 through the operating hole 114; S4. Repeat S3 until all the combination boxes 1 are assembled to form a floor.

[0038] Since the assembly method of the assembled steel truss-concrete composite floor of the present application is implemented by the above-mentioned assembled steel truss-concrete composite floor, it can also have all the technical effects of the above-mentioned assembled steel truss-concrete composite floor, especially it can realize the rapid construction of the floor, and only needs to ensure that the bottom of each load-bearing column 2 is flush so that the lower floor slab 13 at the bottom of each combination box 1 is on the same plane, so that workers do not need to perform operations such as installing the ceiling later to level the lower bottom surface of the floor, which greatly reduces the construction burden; and since the combination box 1 needs to be accurately lowered when it is lowered To ensure precise alignment between the rib hole and the beard rib 21, as well as between the block 113 and the slot, workers can quickly rotate the rotating rod 4533 to insert the card joint 4536 into the check hole when they find deviation between the rib hole and the beard rib 21 or between the block 113 and the slot, so that the one-way valve 4534 can prevent the pressure-transmitting fluid in the near-cylinder section from flowing into the far-cylinder section, thereby keeping the current height of the combination box 1 on the top plate 42 unchanged, making it convenient for workers to perform secondary calibration, so that the installation between the rib hole and the beard rib 21 or between the block 113 and the slot is less likely to deviate.

[0039] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. An assembled steel truss-concrete composite floor, installed on the load-bearing columns of a building, characterized by: The invention comprises at least one combined box (1), wherein the combined box (1) comprises a box beam (11), at least one upper floor slab (12) and at least one lower floor slab (13); the box beam (11) is arranged on the load-bearing column (2); an upper receiving groove is provided at the top of the box beam (11); and a lower receiving groove is provided at the bottom of the box beam (11); The upper floor plate (12) is arranged in the upper receiving groove and connected to the box beam (11); The lower floor plate (13) is arranged in the lower accommodating groove and connected to the box beam (11).

2. The assembled steel truss-concrete composite floor according to claim 1, characterized in that: The upper accommodating groove and the lower accommodating groove both lead to the interior of the box beam (11); a circle of lower abutting rings (111) is circumferentially provided on the sidewall of the lower accommodating groove; a lower connecting through hole is provided on the lower floor plate (13); and the lower floor plate (13) can be connected to the box beam (11) via a pin (3) passing through the lower connecting through hole and connected to the top of the lower abutting ring (111); An upper abutment ring (112) is circumferentially provided on the side wall of the upper receiving groove, an upper connecting through hole is provided on the upper floor plate (12), and the upper floor plate (12) can be connected to the box beam (11) via a pin (3) passing through the upper connecting through hole and connected to the top of the upper abutment ring (112).

3. The assembled steel truss-concrete composite floor according to claim 2, characterized in that: A clamping block (113) is provided on one side wall of the box beam (11), and a clamping groove adapted to the clamping block (113) is provided on the other side wall of the box beam (11), wherein the top end of the clamping groove extends to the top of the box beam (11) to form an opening.

4. The assembled steel truss-concrete composite floor according to claim 3, characterized in that: The combined box (1) further comprises a steel bar clamp (14), at least one beard bar (21) is extended from the column body at the top of the load-bearing column (2), and the beard bar (21) is provided with an external thread, and at least one through-bar hole leading to the interior of the box beam (11) is provided at the bottom of the box beam (11), and at least one bar clamping hole is provided on the steel bar clamp (14), and the through-bar hole and the bar clamping hole are in one-to-one correspondence with the beard bar (21), and the beard bar (21) can sequentially pass through the corresponding through-bar hole and the bar clamping hole and be screwed to the bolt, and the bottom wall of the box beam (11) is abutted between the steel bar clamp (14) and the load-bearing column (2).

5. The assembled steel truss-concrete composite floor according to claim 4, characterized in that: An operation hole (114) leading to the interior of the box beam (11) is provided on the outer side wall of the box beam (11), and the steel bar clamp (14) can pass through the operation hole (114) and enter the interior of the box beam (11).

6. The assembled steel truss-concrete composite floor according to claim 5, characterized in that: It also includes a lifting frame (4), the top of which can support the combined box (1) and drive the combined box (1) to rise and fall, and the bottom of which is provided with a roller (411).

7. The assembled steel truss-concrete composite floor according to claim 6, characterized in that: The lifting frame (4) includes a bottom plate (41), a top plate (42), a fixed scissor fork rod (43), a movable scissor fork rod (44) and a driving member (45), wherein the roller (411) is arranged at the bottom of the bottom plate (41), the bottom end of the fixed scissor fork rod (43) is hinged on the top plate surface of the bottom plate (41), the top end of the fixed scissor fork rod (43) is in contact with the bottom plate surface of the top plate (42) and can slide along the top plate (42), and the top end of the top plate (42) is hinged on the top plate surface of the bottom plate (41). The upper plate surface can abut against the bottom of the combined box (1), the top end of the movable scissor fork rod (44) is hinged on the bottom plate surface of the top plate (42), the middle part of the rod body of the movable scissor fork rod (44) is hinged to the middle part of the rod body of the fixed scissor fork rod (43), and the driving member (45) is connected to the bottom end of the movable scissor fork rod (44) and can drive the bottom end of the movable scissor fork rod (44) to approach or move away from the hinge between the fixed scissor fork rod (43) and the bottom plate (41).

8. The assembled steel truss-concrete composite floor according to claim 7, characterized in that: The driving member (45) includes a moving shaft (451), a telescopic cylinder (452) and a control valve (453); the bottom end of the movable scissor fork rod (44) is hinged on the moving shaft (451); the cylinder body of the telescopic cylinder (452) is arranged on the top plate surface of the bottom plate (41); the piston rod of the telescopic cylinder (452) extends from one side of the telescopic cylinder (452) close to the hinge between the fixed scissor fork rod (43) and the bottom plate (41) and is connected to the moving shaft (451); and the cylinder body of the telescopic cylinder (452) is provided with a liquid hole leading to the inside of the cylinder body; The control valve (453) includes a valve body (4531), a valve core (4532) and a rotating rod (4533). The valve body (4531) is provided with a liquid transmission hole. A receiving groove is provided on the middle hole wall of the liquid transmission hole. The valve core (4532) is arranged inside the receiving groove and divides the liquid transmission hole into a near-cylinder section and a far-cylinder section. The liquid transmission hole is connected to the port of the near-cylinder section. The port of the far-cylinder section is connected to the hydraulic system through a pipeline and can receive the pressure transmission liquid output by the hydraulic system. The valve core (4532) is relatively centered on its own rotation axis. A check hole and a reflux hole are provided, and a one-way valve (4534) is provided in the check hole. The rotating rod (4533) passes through the through hole provided on the valve body (4531) and extends into the interior of the accommodating groove and is connected to the rotating shaft of the valve core (4532). The rotating rod (4533) can drive the check hole or the reflux hole on the valve core (4532) to enter the liquid transmission hole through self-rotation. When the check hole is located in the liquid transmission hole, the one-way valve (4534) can prevent the pressure transmission liquid in the near-cylinder section from flowing into the far-cylinder section.

9. The assembled steel truss-concrete composite floor according to claim 8, characterized in that: The control valve (453) further comprises a mounting cylinder (4535), a clamping joint (4536) and an elastic member (4537); a check hole and a reflux hole adapted to the clamping joint (4536) are provided on the rod body of the rotating rod (4533); the mounting cylinder (4535) is provided on the valve core (4532); one end of the clamping joint (4536) is inserted into the mounting cylinder (4535) and is capable of sliding along the mounting cylinder (4535); the elastic member (4537) is provided between the clamping joint (4536) and the inner wall of the mounting cylinder (4535) and is capable of applying a force to the clamping joint (4536) to move it closer to the rotating rod (4533); When the check hole is located in the liquid transfer through hole, the card connector (4536) can be inserted into the check hole; when the reflux hole is located in the liquid transfer through hole, the card connector (4536) can be inserted into the reflux hole.

10. A method for assembling a prefabricated steel truss-concrete composite floor, implemented using the prefabricated steel truss-concrete composite floor according to claim 9, characterized in that: include: S1. First, place the lower floor plate (13) from the notch of the upper receiving groove into the interior of the box beam (11) and abut against the lower abutting ring (111), then use the pin (3) to connect the lower floor plate (13) and the lower abutting ring (111), then place the box beam (11) on the top plate (42) of the lifting frame (4), then place the upper floor plate (12) from the notch of the upper receiving groove into the interior of the box beam (11) and abut against the upper abutting ring (112), and finally use the pin (3) to connect the upper floor plate (12) and the upper abutting ring (112); S2. First, rotate the rotating rod (4533) to a state where the card joint (4536) is inserted into the check hole, start the hydraulic system to input the pressure-transmitting fluid into the telescopic cylinder (452), and close the hydraulic system after the bottom of the box beam (11) is higher than the top of the beard rib (21) on the top of the load-bearing column (2). Then, translate the lifting frame (4) until the rib hole on the box beam (11) is located directly above the beard rib (21), and then rotate the rotating rod (4533) to a state where the card joint (4536) is inserted into the check hole. The clamping joint (4536) is inserted into the return clamping hole, so that the piston rod of the telescopic cylinder (452) is retracted into the cylinder body and the top plate (42) of the lifting frame (4) is lowered. After the top plate (42) is separated from the bottom of the box beam (11), the lifting frame (4) is moved away from the bottom of the box beam (11), and finally the steel bar clamping disc (14) and bolts are installed on the beard bar (21) located inside the box beam (11) through the operation hole (114); S3, repeat S1 to obtain another combination box (1) to be installed, then rotate the rotating rod (4533) to a state where the card joint (4536) is inserted into the check card hole, start the hydraulic system to input pressure transmission fluid into the telescopic cylinder (452), wait for the bottom of the card block (113) of the installed combination box (1) to be higher than the top of the installed box beam (11), then turn off the hydraulic system, and then translate the lifting frame (4) until the rib hole on the combination box (1) to be installed is located directly above the corresponding beard rib (21), and the card block (113) on the combination box (1) to be installed is Located just above the card slot of the installed box beam (11), the rotating rod (4533) is then rotated to a state where the card joint (4536) is inserted into the return card hole, so that the piston rod of the telescopic cylinder (452) is retracted into the cylinder body and the top plate (42) of the lifting frame (4) is lowered. After the top plate (42) is separated from the bottom of the combined box (1), the lifting frame (4) is removed from the bottom of the combined box (1), and then the steel bar clamp (14) and bolts are installed on the beard rib (21) located inside the combined box (1) through the operating hole (114); S4, repeat S3 until all the combination boxes (1) are assembled to form a floor.

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