Prefabricated concrete double-T plate and superposed beam combined structure

Abstract

The invention belongs to the technical field of building floor structures, and particularly relates to a prefabricated concrete double-T plate and superposed beam combined structure. Comprising a double-T plate body and superposed beams, and the multiple superposed beams are arranged in an array mode; the front ends and the rear ends of the double-T plate bodies are placed on two adjacent superposed beams, and the multiple double-T plate bodies are arranged side by side to form a floor structure. The double-T plate body comprises a panel, a left rib beam and a right rib beam, wherein the left rib beam and the right rib beam are fixedly arranged at the bottom of the panel. Pouring connection of the closed grooves can be facilitated, so that the whole floor is conveniently and rapidly formed, and meanwhile disassembly is convenient; according to the double-T plate, direction adjustment and straightening can be rapidly carried out under the condition that the two double-T plate bodies do not make contact, and rigid collision during installation can be avoided; according to the double-T plate, rigid collision of the two double-T plate bodies during installation can be avoided, meanwhile, the sealing performance of the sealing grooves between the adjacent panels can be kept, follow-up rapid concrete pouring connection and component disassembly are facilitated, and therefore follow-up template making operation is not needed.

Description

Technical Field

[0001] The invention belongs to the technical field of building floor structures, and particularly relates to a precast concrete double T-plate and composite beam combined structure. Background Art

[0002] Building floors are the horizontal structures between floors, typically made of concrete, reinforced concrete, or prestressed concrete. They support the superstructure and distribute loads. Double-T slabs are a common floor slab type, with a double-T cross-section. They offer high load-bearing capacity and large spans, making them widely used in industrial and large commercial building floor systems. Double-T slabs are often used as a floor slab.

[0003] Chinese patent application number 200910028173.3 discloses a prestressed reinforced concrete double-T slab for the construction industry, its formwork, and production method. The double-T slab comprises two ribs and a panel. The panel of the double-T slab is provided with lifting holes on both sides of the ribs. The formwork comprises a template and a prestressed pressure plate. The top surface of the template is provided with protrusions corresponding to the lifting holes of the double-T slab on both sides outside the mold groove. The mold groove of the template is provided with a demolding end plate at each end. The demolding end plate is provided with a steel bar hole and a lifting hole, a lifting ring, or a lifting hook. The method includes finally connecting the lifting holes, lifting ring, or lifting hook of the demolding end plate with a lifting device, and the double-T slab is lifted out of the formwork along with the demolding end plate. The prestressed reinforced concrete double-T slab disclosed in this patent is safe, reliable, low-cost, and has low formwork manufacturing costs. The method is efficient and has low production costs.

[0004] When installing double T-plates as floor panels, if they can be quickly used in conjunction with composite beams, the installation speed of the floor can be quickly improved. However, the connection between the composite beams and the double T-plates requires a large amount of formwork pouring operations, which makes subsequent operations troublesome. During operation, collisions often occur when the two double T-plates are docked, causing damage. At the same time, when the double T-plates are skewed, they are usually manually straightened by crane control, which is very challenging for the crane's operating skills. Summary of the Invention

[0005] In order to address the deficiencies in the prior art, the present invention provides a precast concrete double-T plate and composite beam combined structure. The present invention, through the structural design of the active buffer plate, the passive buffer plate, and the composite beam, can facilitate the pouring and connection of the closed groove, thereby facilitating the rapid formation of the entire floor, and can also facilitate the disassembly of the active buffer plate and the passive buffer plate. The present invention, through the cooperation of the double T plate body and the active sliding tube and the passive sliding rod, can not only achieve rapid adjustment and alignment of the two double T plate bodies without contact, but also avoid rigid collision during installation. The present invention, through the cooperation of the active sliding tube, the passive sliding rod and the locking mechanism, can not only avoid rigid collision during installation of the two double T plate bodies, but also maintain the sealing of the closed groove between adjacent panels, facilitate subsequent rapid concrete pouring and connection and component disassembly, greatly improve efficiency, and thus eliminate the need for subsequent formwork operation. The present invention, through the structural design of the limiting mechanism, can not only ensure the rapid disassembly and recycling of the active sliding tube and the passive sliding rod, but also maintain the stability of the subsequent rib beam, thereby preventing the occurrence of safety accidents.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: The lifting mechanism is a pair of fixedly mounted on two opposite sides of the vehicle frame, and the fixing mechanism can be adjusted accordingly. The two vehicle frames are used as the support frame of the vehicle frame. The fixing mechanism can be adjusted accordingly. The composite beam includes an upper beam body and a lower beam body fixed to each other, the long sides of the upper beam body and the lower beam body form a stepped groove, and the front and rear ends of the double T-plate body are placed on the stepped groove; the lengths of the active buffer plate and the passive buffer plate are both less than the spacing between two adjacent lower beam bodies, and the upper beam body is evenly provided with multiple steel frames.

[0007] Furthermore, two locking mechanisms are symmetrically installed at one end of the passive sliding rod, and the locking mechanism includes a locking rod and a return spring connected to each other; two accommodating grooves are symmetrically opened at one end of the passive sliding rod, and the bottom of each accommodating groove is fixedly connected to one end of the corresponding return spring.

[0008] Furthermore, two through slots are symmetrically opened on the active sliding tube, and the through slots correspond to the locking rods one by one; before the double T-plate body is placed on the stepped groove, the active buffer plate, the passive buffer plate and the panel are spaced apart; when the active buffer plate and the passive buffer plate are both in contact with the panel, the locking rod extends out of the corresponding through slots.

[0009] Furthermore, the limiting groove is installed with a limiting mechanism, and the limiting mechanism includes a semi-ring steel plate, and L-shaped steel plates are symmetrically fixed at both ends of the semi-ring steel plate; the semi-ring steel plate and the L-shaped steel plate are both fitted with the inner wall of the limiting groove; the two sides of the bottom of the L-shaped steel plate are fixedly connected to the bottom of the corresponding rib beam through anchor bolts; the middle of the bottom of the two L-shaped steel plates is fixedly connected to the adjusting steel plate through bolts; a threaded hole is opened in the middle of the adjusting steel plate, and a screw is screwed into the threaded hole, and the end of the screw is rotatably connected to the limiting block.

[0010] Furthermore, the limit block includes a semicircular arc block and a square block that are fixed to each other, and both sides of the square block are fitted with one side of the L-shaped steel plate; the bottom of the square block is fixed with a T-shaped slot, and the end of the screw is fixed with a rotating disk, and the rotating disk is rotatably connected to the T-shaped slot.

[0011] Furthermore, the limiting groove includes a semicircular arc surface groove and a straight surface groove that are connected to each other; the arc surface groove is arranged corresponding to the semi-ring steel plate, and the straight surface groove is arranged corresponding to the L-shaped steel plate.

[0012] Furthermore, an adjustment handle is fixedly provided on one end of the screw rod away from the limiting block.

[0013] Furthermore, there is a gap between the bottom outer end of the L-shaped steel plate and the front and rear ends of the corresponding rib beam, so as to be placed on the stepped groove.

[0014] Furthermore, the top ends of the active buffer plate and the passive buffer plate are higher than the bottom of the panel and lower than the top of the panel; the bottom ends of the active buffer plate and the passive buffer plate are lower than the bottom of the rib beam.

[0015] The present invention also claims a method for installing the prestressed concrete double T-plate with linkage adjustment function, comprising the following steps: S1. Use a crane to place the double T-plate bodies on the two step grooves in sequence. The placement method is to first align the ends of the left and right rib beams closely with the corresponding step grooves, and then move the double T-plate bodies along the direction of the step grooves. S2. The active buffer plate of the rear double T-plate body will first contact the passive buffer plate of the previously installed double T-plate body. If the rear double T-plate body is crooked, the active buffer plate of the rear double T-plate body will not be fully aligned with the passive buffer plate. At this time, the active buffer plate of the rear double T-plate body will be shortened to the rear double T-plate body, which is convenient for quickly discovering abnormalities; while the passive buffer plate of the front double T-plate body is elastically compressed for buffering; at this time, the two double T-plate bodies can be quickly adjusted and aligned without contact, until the active buffer plate of the rear double T-plate body is fully aligned with the passive buffer plate of the front double T-plate body, and the moving direction of the crane has also been adjusted; S3. Continue to move the next double T-plate body. The active buffer plate will first fit with one side of the panel of the next double T-plate body. Then, it will push the passive buffer plate of the previous double T-plate body until the passive buffer plate of the previous double T-plate body fits with one side of the panel of the previous double T-plate body. At this point, the fitting installation of the two double T-plate bodies is completed, and the locking rod extends out of the corresponding through slot, so that the buffer spring is finally locked. During this process, the buffer spring on the side of the passive buffer plate always plays a buffering role to avoid rigid collision. S4. Repeat S1 to S3 to complete the installation of multiple double T-plate bodies. At the same time, the gaps between the active and passive buffer plates and the stepped grooves are sealed to form a complete closed groove between the panel, the active and passive buffer plates and the composite beams. Then, concrete is poured into the closed groove. S5. After the concrete solidifies, the active sliding tube and the passive sliding rod are quickly disassembled by removing the adjusting steel plate; then the adjusting steel plate is installed, and the semicircular arc block is abutted against the semi-ring steel plate by controlling the screw; and the disassembled active sliding tube and passive sliding rod are reused.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention can realize the rapid adjustment of the orientation and alignment of the two double T-plate bodies without contacting each other through the cooperation of the double T-plate body, the active sliding tube and the passive sliding rod, and can also avoid rigid collision during installation; specifically, the double T-plate bodies are placed on the two step grooves in sequence by a crane, and the placement method is to first make the ends of the left rib beam and the right rib beam close to the corresponding step groove, and then move the double T-plate body along the direction of the step groove; at this time, the active buffer plate of the latter double T-plate body will first contact the passive buffer plate of the previously installed double T-plate body. If the latter double T-plate body is crooked, the active buffer plate of the latter double T-plate body will not be in contact with the passive buffer plate on all sides, and the active buffer plate of the latter double T-plate body will be shortened to the distance between the active buffer plate and the latter double T-plate body, so as to facilitate the rapid detection of abnormalities; and the passive buffer plate of the former double T-plate body Then the passive buffer plate of the previous double T-plate body is pushed until the passive buffer plate of the previous double T-plate body is fitted with the panel side of the previous double T-plate body, and the fitting installation of the two double T-plate bodies is completed at this time. During this process, the buffer spring on one side of the passive buffer plate always plays a buffering role to avoid rigid collision during installation.

[0017] (2) The present invention can avoid the rigid collision of the two double T-plate bodies during installation by cooperating with the active sliding tube, the passive sliding rod and the locking mechanism, while maintaining the sealing of the closed groove between the adjacent panels, facilitating the subsequent rapid pouring of concrete and connection and the disassembly of components, greatly improving efficiency, and thus eliminating the need for subsequent template operations; specifically, when the two double T-plate bodies are fitted together, only the docking operation is realized at this time. Due to the rebound effect of the buffer spring, a gap may be generated at any time. Therefore, through the cooperation of the invented locking mechanism, at the same time as the docking is completed, the locking rod will extend out of the corresponding through groove, so that the buffer spring is finally locked and cannot play an elastic role. At this time, the sealing of the closed groove between the adjacent panels can be guaranteed. At this time, concrete can be directly poured into the closed groove to achieve a rapid pouring connection; at the same time, after the pouring connection is completed, due to the action of the locking mechanism, the buffer spring is locked and cannot play an elastic role. Therefore, without the restriction of the applied force, the active sliding tube and the passive sliding rod can be quickly disassembled through the limit groove, greatly improving efficiency, and thus eliminating the need for subsequent template operations.

[0018] (3) The present invention can ensure the rapid disassembly and recycling of the active sliding tube and the passive sliding rod through the structural design of the limiting mechanism, and at the same time can maintain the stability of the subsequent rib beam and prevent the occurrence of safety accidents. Specifically, when the active sliding tube and the passive sliding rod need to be disassembled, after the concrete solidifies, the limiting groove is opened by disassembling the adjusting steel plate, thereby realizing the rapid disassembly of the active sliding tube and the passive sliding rod, and the disassembled active sliding tube and the passive sliding rod can be reused. When the disassembly is completed, the adjusting steel plate is installed, and a supporting structure is formed by the semi-circular steel plate, the L-shaped steel plate and the adjusting steel plate, thereby preliminarily preventing the limit groove from breaking. At the same time, by controlling the screw, since the two sides of the block are in contact with one side of the L-shaped steel plate, and the rotating disk on the screw is rotatably connected to the T-shaped groove of the block, the screw can be continuously lifted and pushed by the rotation of the screw, so that the semi-circular block abuts the semi-circular steel plate. At the same time, the filling of the semi-circular block and the block improves the stability of the force on the limiting groove, comprehensively maintains the stability of the subsequent rib beam and prevents the occurrence of safety accidents.

[0019] (4) The present invention can facilitate the pouring connection of the closed groove through the structural design of the active buffer plate, the passive buffer plate and the composite beam, thereby facilitating the rapid formation of the entire floor, and also facilitates the disassembly of the active buffer plate and the passive buffer plate; specifically, after the double T-plate body is installed on the composite beam, the upper beam body and the panels on both sides are in contact with each other, and the active buffer plate and the passive buffer plate are in contact with the lower beam body. Therefore, it is only necessary to seal the gap between the active buffer plate and the passive buffer plate and the step groove to form a complete closed groove between the panels, the active buffer plate and the passive buffer plate and the composite beam, and then the adjacent double T-plate bodies and the composite beams can be connected into a whole through subsequent pouring, thereby forming a floor structure; at the same time, since the active buffer plate and the passive buffer plate are in contact with the lower beam body, the active sliding tube, the passive sliding rod, the active buffer plate and the passive buffer plate can be quickly disassembled by operating the limiting mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a precast concrete double T-plate and composite beam combined structure of the present invention; Figure 2 This is a schematic diagram of a composite beam structure of a precast concrete double T-plate and composite beam combined structure according to the present invention; Figure 3 This is a schematic diagram of the overall structure of a double T-plate combined with a precast concrete double T-plate and a composite beam according to the present invention; Figure 4 This is a schematic diagram of a double T-plate dispersed structure of a precast concrete double T-plate and composite beam combined structure according to the present invention; Figure 5 This is a schematic diagram of a double T-plate installation structure of a precast concrete double T-plate and composite beam combined structure according to the present invention; Figure 6 This is a schematic diagram of a partially dispersed structure of a precast concrete double T-plate and composite beam combined structure of the present invention; Figure 7 This is a schematic cross-sectional view of a locking mechanism for a combined structure of a precast concrete double T-plate and a composite beam according to the present invention; Figure 8 This is a partial structural diagram of a precast concrete double T-plate and composite beam combined structure of the present invention; Figure 9 This is a schematic structural diagram of a limiting mechanism of a precast concrete double T-plate and composite beam combined structure according to the present invention; Figure 10 This is a schematic diagram of the dispersed structure of the limiting mechanism of a precast concrete double T-plate and composite beam combined structure of the present invention.

[0021] The reference numerals are as follows: Double T-plate body 100, panel 110, left rib beam 120, right rib beam 130, limit groove 140, arc groove 141, straight groove 142, active buffer plate 200, passive buffer plate 300, active slide tube 400, through groove 410, outer limit ring 420, passive slide rod 500, accommodating groove 510, buffer spring 520, limit mechanism 600, semi-ring steel plate 6 10. L-shaped steel plate 620, semicircular block 630, block 640, T-slot 650, screw 660, rotating disk 661, adjusting handle 670, adjusting steel plate 680, threaded hole 681, locking mechanism 700, locking rod 710, return spring 720, composite beam 800, lower beam 810, upper beam 820, stepped groove 830, reinforcement frame 840. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the embodiments. Of course, the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0023] Although the steps in the present invention are arranged with numbers, they are not intended to limit the order of the steps. Unless the order of the steps is clearly stated or the execution of a step requires other steps as a basis, the relative order of the steps can be adjusted. It is understood that the term "and / or" used herein refers to and covers any and all possible combinations of one or more of the associated listed items. Example 1

[0024] like Figures 1 to 10As shown, a precast concrete double T-plate and composite beam combined structure includes a double T-plate body 100 and a composite beam 800, with multiple composite beams 800 arranged in an array; the front and rear ends of the double T-plate body 100 are placed on two adjacent composite beams 800, and multiple double T-plate bodies 100 are arranged side by side to form a floor structure; the double T-plate body 100 includes a panel 110 and a left rib beam 120 and a right rib beam 130 fixed to the bottom of the panel 110; the bottom of the left rib beam 120 and the bottom of the right rib beam 130 are each provided with two limiting grooves 140, thereby forming two groups of front and rear; each group of limiting grooves 140 are connected together in a sliding manner There are active sliding tubes 400, the left ends of the two active sliding tubes 400 are commonly fixedly connected to the active buffer plate 200, and the right ends of the two active sliding tubes 400 are fixedly provided with outer limit rings 420, and the outer limit rings 420 are limited and abutted against the outer sides of the adjacent limit grooves 140; the right ends of the two active sliding tubes 400 are slidably connected to the insides of the two passive sliding rods 500, and the ends of the two passive sliding rods 500 are commonly fixedly connected to the passive buffer plate 300; the passive sliding rods 500 are sleeved with buffer springs 520, and the buffer springs 520 are located between the corresponding outer limit rings 420 and the passive buffer plate 300; The composite beam 800 includes an upper beam body 820 and a lower beam body 810 fixed to each other, the long sides of the upper beam body 820 and the lower beam body 810 form a stepped groove 830, and the front and rear ends of the double T-plate body (100) are placed on the stepped groove 830; the lengths of the active buffer plate 200 and the passive buffer plate 300 are both less than the distance between two adjacent lower beam bodies 810, and the upper beam body 820 is evenly provided with a plurality of steel bars 840.

[0025] The present invention cooperates with the double T-plate body 100, the active sliding tube 400 and the passive sliding rod 500, so that the two double T-plate bodies 100 can be quickly adjusted and aligned without contact, and rigid collision during installation can be avoided. Specifically, the double T-plate body 100 is placed on the two stepped grooves 830 in sequence by a crane. The placement method is to first make the ends of the left rib beam 120 and the right rib beam 130 close to the corresponding stepped grooves 830, and then move the double T-plate body 100 along the direction of the stepped grooves 830. When the active buffer plate 200 of the next double T plate body 100 is in contact with the passive buffer plate 300 of the previous installed double T plate body 100, if the next double T plate body 100 is crooked, the active buffer plate 200 of the next double T plate body 100 will not be in contact with the passive buffer plate 300 on all sides, and the active buffer plate 200 of the next double T plate body 100 will be closer to the next double T plate body 100, which is convenient for quickly finding abnormalities; and the passive buffer plate 300 of the previous double T plate body 100 will be closer to the previous double T plate body 100. The buffer plate 300 is elastically compressed for buffering; at this time, the two double T-plate bodies 100 can be quickly adjusted and aligned without contact, until the active buffer plate 200 of the rear double T-plate body 100 is fully aligned with the passive buffer plate 300 of the front double T-plate body 100, and the moving direction of the crane has been adjusted; thereby, the two double T-plate bodies 100 can be quickly adjusted and aligned without contact; then continue to move the rear double T-plate body 100, the active buffer plate 200 of the rear double T-plate body 100 is fully aligned with the passive buffer plate 300 of the front double T-plate body 100, and the moving direction of the crane has been adjusted. The buffer plate 200 will first fit with one side of the panel 110 of the rear double T-plate body 100, and then push the passive buffer plate 300 of the front double T-plate body 100 until the passive buffer plate 300 of the front double T-plate body 100 fits with one side of the panel 110 of the front double T-plate body 100. At this time, the fitting installation of the two double T-plate bodies 100 is completed. During this process, the buffer spring 520 on one side of the passive buffer plate 300 always plays a buffering role to avoid rigid collision during installation.

[0026] It is worth noting that both the active buffer plate 200 and the passive buffer plate 300 can be made of wood structures, thereby improving a certain buffering performance, and the drawings in this application specification are only schematic diagrams and do not limit specific dimensions, so they will not be described in detail here.

[0027] Furthermore, two locking mechanisms 700 are symmetrically installed at one end of the passive sliding rod 500, and the locking mechanism 700 includes a locking rod 710 and a return spring 720 connected to each other; two accommodating grooves 510 are symmetrically opened at one end of the passive sliding rod 500, and the bottom of each accommodating groove 510 is fixedly connected to one end of the corresponding return spring 720.

[0028] The present invention cooperates with the active sliding tube 400, the passive sliding rod 500 and the locking mechanism 700 to avoid rigid collision during installation of the two double T-plate bodies 100, while maintaining the sealing of the closed groove between adjacent panels 110, facilitating the subsequent rapid pouring of concrete and connection and disassembly of components, greatly improving efficiency, and eliminating the need for subsequent template operations; a detailed description will be given later.

[0029] Furthermore, two through slots 410 are symmetrically opened on the active sliding tube 400, and the through slots 410 correspond one-to-one to the locking rods 710; before the double T-plate body 100 is placed on the stepped groove 830, the active buffer plate 200, the passive buffer plate 300 and the panel 110 are spaced apart; when the active buffer plate 200 and the passive buffer plate 300 are both in contact with the panel 110, the locking rod 710 extends out of the corresponding through slots 410.

[0030] When the present invention completes the fitting installation of the two double T-plate bodies 100, only the docking operation is realized. Due to the rebound effect of the buffer spring 520, a gap may be generated at any time. Therefore, through the cooperation of the inventive locking mechanism 700, when the docking is completed, the locking rod 710 will extend out of the corresponding through groove 410, so that the buffer spring 520 is finally locked and cannot play an elastic role. At this time, the sealing of the closed groove between the adjacent panels 110 can be guaranteed. At this time, concrete can be directly poured into the closed groove to achieve a quick pouring connection; at the same time, after the pouring connection is completed, due to the action of the locking mechanism 700, the buffer spring 520 is locked and cannot play an elastic role. Therefore, in the absence of force restrictions, the active sliding tube 400 and the passive sliding rod 500 can be quickly disassembled through the limit groove 140, which greatly improves efficiency and eliminates the need for subsequent template operations.

[0031] Furthermore, the limiting groove 140 is installed with a limiting mechanism 600, and the limiting mechanism 600 includes a semi-ring steel plate 610, and L-shaped steel plates 620 are symmetrically fixed at both ends of the semi-ring steel plate 610; the semi-ring steel plate 610 and the L-shaped steel plate 620 are both fitted with the inner wall of the limiting groove 140; the two sides of the bottom of the L-shaped steel plate 620 are fixedly connected to the bottom of the corresponding rib beam through anchor bolts; the middle of the bottom of the two L-shaped steel plates 620 is fixedly connected to the adjusting steel plate 680 through bolts; a threaded hole 681 is opened in the middle of the adjusting steel plate 680, and a screw 660 is screwed to the threaded hole 681, and the end of the screw 660 is rotatably connected to the limiting block.

[0032] The present invention can ensure the rapid disassembly and recycling of the active sliding tube 400 and the passive sliding rod 500 through the structural design of the limiting mechanism 600, while also maintaining the stability of the subsequent rib beams to prevent the occurrence of safety accidents; a detailed description will be given later.

[0033] Furthermore, the limit block includes a semicircular arc block 630 and a square block 640 that are fixed to each other, and both sides of the square block 640 are in contact with one side of the L-shaped steel plate 620; a T-shaped slot 650 is fixedly provided at the bottom of the square block 640, and a rotating disk 661 is fixedly provided at the end of the screw rod 660, and the rotating disk 661 is rotatably connected to the T-shaped slot 650.

[0034] Furthermore, the limiting groove 140 includes a semicircular arc surface groove 141 and a straight surface groove 142 that are connected to each other; the arc surface groove 141 is corresponding to the semi-ring steel plate 610, and the straight surface groove 142 is corresponding to the L-shaped steel plate 620.

[0035] According to the present invention, when the active sliding tube 400 and the passive sliding rod 500 need to be disassembled, after the concrete solidifies, the adjusting steel plate 680 is disassembled to open the limiting groove 140, thereby realizing the rapid disassembly of the active sliding tube 400 and the passive sliding rod 500, and the disassembled active sliding tube 400 and the passive sliding rod 500 can be reused; after the disassembly is completed, the adjusting steel plate 680 is installed, and a support structure is formed by the semi-ring steel plate 610, the L-shaped steel plate 620 and the adjusting steel plate 680, so as to preliminarily prevent the limiting groove 140 from breaking; at the same time, By controlling the screw 660, since both sides of the block 640 are in contact with one side of the L-shaped steel plate 620, and the rotating disk 661 on the screw 660 is rotatably connected to the T-shaped slot 650 of the block 640, the screw 660 can continuously rise and push the block 640 through the rotation of the screw 660, so that the semi-circular block 630 abuts against the semi-ring steel plate 610; at the same time, the filling of the semi-circular block 630 and the block 640 improves the stability of the force applied to the limit groove 140, comprehensively maintains the stability of the subsequent rib beams, and prevents the occurrence of safety accidents.

[0036] Furthermore, an adjustment handle 670 is fixedly provided on one end of the screw rod 660 away from the limit block. The adjustment handle 670 facilitates the adjustment of the screw rod 660.

[0037] Furthermore, the bottom outer end of the L-shaped steel plate 620 is spaced apart from the front and rear ends of the corresponding rib beam so as to be placed on the stepped groove 830 .

[0038] Furthermore, the top ends of the active and passive buffer plates 200 and 300 are higher than the bottom and lower than the top of the panel 110, and the bottom ends of the active and passive buffer plates 200 and 300 are lower than the bottom of the ribs. This structural design facilitates the formation of a completely closed slot.

[0039] A method for installing the prestressed concrete double T-plate floor with linkage adjustment function comprises the following steps: S1. Use a crane to place the double T-plate body 100 on the two stepped grooves 830 in sequence. The placement method is to first align the ends of the left rib beam 120 and the right rib beam 130 closely with the corresponding stepped grooves 830, and then move the double T-plate body 100 along the direction of the stepped grooves 830; S2, the active buffer plate 200 of the rear double T-plate body 100 will first contact the passive buffer plate 300 of the previously installed double T-plate body 100. If the rear double T-plate body 100 is crooked, the active buffer plate 200 of the rear double T-plate body 100 will not be in full contact with the passive buffer plate 300. At this time, the active buffer plate 200 of the rear double T-plate body 100 will be shortened to the distance from the rear double T-plate body 100, which is convenient for quickly discovering abnormalities; and the passive buffer plate 300 of the front double T-plate body 100 is elastically compressed for buffering; at this time, the orientation can be quickly adjusted and aligned without the two double T-plate bodies 100 contacting each other, until the active buffer plate 200 of the rear double T-plate body 100 is fully in contact with the passive buffer plate 300 of the front double T-plate body 100, and the moving direction of the crane has also been adjusted; S3. Continue to move the next double T-plate body 100. The active buffer plate 200 will first fit with one side of the panel 110 of the next double T-plate body 100. Then, it will push the passive buffer plate 300 of the previous double T-plate body 100 until the passive buffer plate 300 of the previous double T-plate body 100 fits with one side of the panel 110 of the previous double T-plate body 100. At this time, the fitting installation of the two double T-plate bodies 100 is completed, and the locking rod 710 extends out of the corresponding through slot 410, so that the buffer spring 520 is finally locked. During this process, the buffer spring 520 on one side of the passive buffer plate 300 always plays a buffering role to avoid rigid collision. S4. Repeat steps S1 to S3 to complete the installation of multiple double-T panel bodies 100. At the same time, the gaps between the active buffer panels 200, the passive buffer panels 300, and the stepped grooves 830 are sealed to form a complete closed groove between the panel 110, the active buffer panels 200, the passive buffer panels 300, and the composite beam 800. Concrete is then poured into the closed groove. S5. After the concrete solidifies, the active sliding tube 400 and the passive sliding rod 500 are quickly disassembled by removing the adjusting steel plate 680. Then, the adjusting steel plate 680 is installed again, and the semicircular block 630 is brought into contact with the semi-annular steel plate 610 by controlling the screw 660. The disassembled active sliding tube 400 and the passive sliding rod 500 are reused.

[0040] The present invention can facilitate the pouring connection of the closed groove through the structural design of the active buffer plate 200, the passive buffer plate 300, and the composite beam 800, thereby facilitating the rapid formation of the entire floor, and at the same time facilitates the disassembly of the active buffer plate 200 and the passive buffer plate 300; specifically, when the double T plate body 100 is installed on the composite beam 800, the upper beam body 820 is fitted with the panels 110 on both sides, and the active buffer plate 200, the passive buffer plate 300 is fitted with the lower beam body 810, so it is only necessary to fit the active buffer plate 200, the passive buffer plate 300 and the stepped groove 830. By sealing the gaps between them, a complete closed groove can be formed between the panel 110, the active buffer plate 200, the passive buffer plate 300, and the composite beam 800, and then the adjacent double T-plate bodies 100 and the composite beam 800 can be connected into a whole through subsequent pouring and reinforcement of the steel frame 840, thereby forming a floor structure; at the same time, since the active buffer plate 200 and the passive buffer plate 300 are fitted with the lower beam body 810, the active sliding tube 400, the passive sliding rod 500, the active buffer plate 200, and the passive buffer plate 300 can be quickly disassembled through the operation of the limiting mechanism 600.

[0041] It is worth noting that during pouring, the slight gaps between the double T-plate body 100, the active buffer plate 200, the passive buffer plate 300 and the composite beam 800 of the present invention can be temporarily handled by conventional sealing operations, which are conventional operations and will not be described in detail here.

[0042] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this field, several improvements and changes can be made without departing from the creative concept of the present invention, which all fall within the scope of protection of the present invention.

Claims

1. A precast concrete double T-plate and composite beam combined structure, characterized in that: The invention comprises a double T-plate body (100) and a composite beam (800), wherein a plurality of composite beams (800) are arranged in an array; the front and rear ends of the double T-plate body (100) are placed on two adjacent composite beams (800), and a plurality of double T-plate bodies (100) are arranged side by side to form a floor structure; the double T-plate body (100) comprises a panel (110) and a left rib beam (120) and a right rib beam (130) fixed at the bottom of the panel (110); the bottoms of the left rib beam (120) and the right rib beam (130) are each provided with two limiting grooves (140), thereby forming two front and rear groups; an active sliding pipe (400) is slidably connected in each group of limiting grooves (140), and the two groups The left ends of the two active sliding tubes (400) are fixedly connected to the active buffer plate (200), and the right ends of the two active sliding tubes (400) are fixedly provided with an outer limiting ring (420), and the outer limiting ring (420) is limited and abutted against the outer side of the adjacent limiting groove (140); the right ends of the two active sliding tubes (400) are slidably connected to the passive sliding rods (500), and the ends of the two passive sliding rods (500) are fixedly connected to the passive buffer plate (300); the passive sliding rods (500) are sleeved with a buffer spring (520), and the buffer spring (520) is located between the corresponding outer limiting ring (420) and the passive buffer plate (300); The composite beam (800) includes an upper beam body (820) and a lower beam body (810) fixed to each other. The long sides of the upper beam body (820) and the lower beam body (810) form a stepped groove (830), and the front and rear ends of the double T-plate body (100) are placed on the stepped groove (830); the lengths of the active buffer plate (200) and the passive buffer plate (300) are both less than the distance between two adjacent lower beam bodies (810), and the upper beam body (820) is evenly provided with a plurality of steel bars (840).

2. The precast concrete double T-plate and composite beam combined structure according to claim 1, characterized in that: Two locking mechanisms (700) are symmetrically installed at one end of the passive sliding rod (500), and the locking mechanism (700) includes a locking rod (710) and a return spring (720) connected to each other; two accommodating grooves (510) are symmetrically opened at one end of the passive sliding rod (500), and the bottom of each accommodating groove (510) is fixedly connected to one end of the corresponding return spring (720).

3. The precast concrete double T-plate and composite beam combined structure according to claim 2, characterized in that: Two through slots (410) are symmetrically provided on the active sliding tube (400), and the through slots (410) correspond to the locking rods (710) one by one. Before the double T-plate body (100) is placed on the stepped groove (830), the active buffer plate (200), the passive buffer plate (300) and the panel (110) are spaced apart. When the active buffer plate (200) and the passive buffer plate (300) are in contact with the panel (110), the locking rods (710) extend out of the corresponding through slots (410).

4. The precast concrete double T-plate and composite beam combined structure according to claim 1, characterized in that: The limiting groove (140) is installed with a limiting mechanism (600), and the limiting mechanism (600) includes a semi-ring steel plate (610), and L-shaped steel plates (620) are symmetrically fixed at both ends of the semi-ring steel plate (610); the semi-ring steel plate (610) and the L-shaped steel plate (620) are both fitted with the inner wall of the limiting groove (140); the two sides of the bottom of the L-shaped steel plate (620) are fixedly connected to the bottom of the corresponding rib beam through anchor bolts; the middle of the bottom of the two L-shaped steel plates (620) is fixedly connected to the adjustment steel plate (680) through bolts; a threaded hole (681) is opened in the middle of the adjustment steel plate (680), and a screw (660) is screwed to the threaded hole (681), and the end of the screw (660) is rotatably connected to the limiting block.

5. The precast concrete double T-plate and composite beam combined structure according to claim 4, characterized in that: The limit block comprises a semicircular arc block (630) and a square block (640) fixedly connected to each other, and both sides of the square block (640) are in contact with one side of the L-shaped steel plate (620); a T-shaped slot (650) is fixedly provided at the bottom of the square block (640), and a rotating disk (661) is fixedly provided at the end of the screw rod (660), and the rotating disk (661) is rotatably connected to the T-shaped slot (650).

6. The precast concrete double T-plate and composite beam combined structure according to claim 5, characterized in that: The limiting groove (140) comprises a semicircular arc surface groove (141) and a straight surface groove (142) which are connected to each other; the arc surface groove (141) is arranged corresponding to the semi-annular steel plate (610), and the straight surface groove (142) is arranged corresponding to the L-shaped steel plate (620).

7. The precast concrete double T-plate and composite beam combined structure according to claim 4, characterized in that: An adjustment handle (670) is fixedly provided at one end of the screw rod (660) away from the limiting block.

8. The precast concrete double T-plate and composite beam combined structure according to claim 4, characterized in that: The bottom outer end of the L-shaped steel plate (620) is spaced from the front and rear ends of the corresponding rib beam, and is used to be placed on the stepped groove (830).

9. The precast concrete double T-plate and composite beam combined structure according to claim 1, characterized in that: The top ends of the active buffer plate (200) and the passive buffer plate (300) are higher than the bottom of the panel (110) and lower than the top of the panel (110); the bottom ends of the active buffer plate (200) and the passive buffer plate (300) are lower than the bottom of the rib beam.

10. A method for installing a floor prestressed concrete double T-plate with a linkage adjustment function according to any one of claims 1 to 9, characterized in that: The steps include: S1. Place the double T-plate body (100) on the two stepped grooves (830) in sequence by using a crane. The placement method is to first place the ends of the left rib beam (120) and the right rib beam (130) close to the corresponding stepped grooves (830), and then move the double T-plate body (100) along the direction of the stepped grooves (830); S2. The active buffer plate (200) of the next double T plate body (100) will first contact the passive buffer plate (300) of the previous installed double T plate body (100). If the next double T plate body (100) is crooked, the active buffer plate (200) of the next double T plate body (100) will not fit all the surfaces with the passive buffer plate (300). At this time, the active buffer plate (200) of the next double T plate body (100) will contact the next double T plate body. (100) The distance is shortened, which facilitates the rapid detection of abnormalities; and the passive buffer plate (300) of the previous double T plate body (100) is elastically compressed for buffering; at this time, the two double T plate bodies (100) can be quickly adjusted and aligned without contact, until the active buffer plate (200) of the next double T plate body (100) and the passive buffer plate (300) of the previous double T plate body (100) are all aligned, and the moving direction of the crane has also been adjusted; S3, continue to move the next double T-plate body (100), the active buffer plate (200) will first be fitted with one side of the panel (110) of the next double T-plate body (100), and then push the passive buffer plate (300) of the previous double T-plate body (100) until the passive buffer plate (300) of the previous double T-plate body (100) is fitted with one side of the panel (110) of the previous double T-plate body (100), at which point the fitting installation of the two double T-plate bodies (100) is completed, and the locking rod (710) extends out of the corresponding through slot (410), so that the buffer spring (520) is finally locked; during this process, the buffer spring (520) on one side of the passive buffer plate (300) always plays a buffering role to avoid rigid collision; S4, continuously looping S1 to S3, completing the installation of multiple double T-plate bodies (100), and simultaneously blocking the gaps between the active buffer plate (200), the passive buffer plate (300) and the stepped groove (830), so that a complete closed groove is formed between the panel (110), the active buffer plate (200), the passive buffer plate (300), and the composite beam (800); and then pouring concrete into the closed groove; S5. After the concrete solidifies, the active sliding tube (400) and the passive sliding rod (500) are quickly disassembled by disassembling the adjusting steel plate (680); the adjusting steel plate (680) is then installed, and the semicircular arc block (630) is abutted against the semi-annular steel plate (610) by controlling the screw rod (660); and the disassembled active sliding tube (400) and the passive sliding rod (500) are reused.

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