CN211665927U - Prestress assembling frame structure - Google Patents

Abstract

The application discloses prestressing force assembly frame construction relates to construction technical field. The prestress assembling frame structure comprises a prefabricated column, a prefabricated beam, a prefabricated connecting device and a prestress rib; the end surface of the prefabricated beam is detachably connected with the prefabricated connecting device; one end of the prefabricated connecting device, which is far away from the prefabricated beam, is detachably connected to the prefabricated column; the prestressed tendons sequentially penetrate through the prefabricated columns, the prefabricated connecting devices and the prefabricated cross beams and are fixed on the prefabricated columns, and the prefabricated connecting devices are used for bearing vibration deformation. The prestress assembling frame structure is convenient and fast to construct, controllability of connection quality between main body components and restorability of the whole structure can be improved, and the prestress assembling frame structure is suitable for building structures with higher requirements on construction performance and shock resistance.

Description

Prestress assembling frame structure

Technical Field

The application relates to the technical field of building construction, in particular to a prestress assembling frame structure.

Background

The prefabricated structure is a structural form commonly adopted in building construction, and adopts prefabricated components as main stressed components, and the prefabricated components are connected through different technical means to form an integral common bearing.

The existing prefabricated concrete structure has poor controllability of connection quality and poor recovery performance.

SUMMERY OF THE UTILITY MODEL

The application provides a prestressing force assembly frame construction is convenient, and can improve the controllability of the quality of connection between the main part component and the holistic recoverable performance of structure to be applicable to in the building structure that requires higher to workability and shock resistance.

The application provides a prestress assembling frame structure, which comprises prefabricated columns, prefabricated beams, prefabricated connecting devices and prestressed tendons; the end surface of the prefabricated beam is detachably connected with the prefabricated connecting device; one end of the prefabricated connecting device, which is far away from the prefabricated beam, is detachably connected to the prefabricated column; the prestressed tendons sequentially penetrate through the prefabricated columns, the prefabricated connecting devices and the prefabricated cross beams and are fixed on the prefabricated columns, and the prefabricated connecting devices are used for bearing vibration deformation.

According to the technical scheme, the prestress assembly frame structure consumes energy through plastic deformation of the prefabricated connecting device, the bending resistance bearing capacity of the whole frame is enhanced through the prestress ribs, and premature crack of an interface between the third connecting plate in the prefabricated beam and the first poured concrete body is prevented under the action of an earthquake. The prestress assembling frame structure is deformed or damaged only at the prefabricated connecting device under the action of an earthquake, a main body component is basically not damaged, the whole structure is clearly stressed, the earthquake resistance is good, and certain restorable performance is achieved. Prefabricated post, prefabricated crossbeam and prefabricated connecting device all can prefabricate in advance, can assemble fast at the scene, effectively improve prestressing force assembly frame construction's efficiency of construction. All adopt the detachable mode to connect between prefabricated crossbeam, prefabricated connecting device and the prefabricated post, shake back principal component structural damage little, can carry out the change restoration of destruction section fast after shaking for shake in the prestressing force assembly frame construction and to repair, shake greatly even and to repair, personnel and property safety when the guarantee shakes have good social and economic benefits, and good engineering using value and popularization and application prospect.

With reference to the present application, in a first possible implementation manner of the present application, the pre-stressed assembled frame structure includes a plurality of prefabricated columns; a plurality of prefabricated columns are arranged in an array; each prefabricated column is detachably connected with a plurality of prefabricated connecting devices at intervals along the vertical direction.

Above-mentioned technical scheme, prestressing force assembly frame construction is multilayer frame construction, and building construction's suitability is stronger.

With reference to the present application or the first possible implementation manner of the present application, in a second possible implementation manner of the present application, the prefabricated connecting device includes a first connecting plate, a second connecting plate, a first section steel and a stiffening rib; two ends of the first section steel are respectively connected to the first connecting plate and the second connecting plate; two ends of the stiffening rib are respectively connected with the flange of the first section steel and the first connecting plate; the first connecting plate is detachably connected to the prefabricated column, and the second connecting plate is detachably connected to the prefabricated beam.

Above-mentioned technical scheme, first connecting plate can be dismantled with prefabricated post and be connected, and the second connecting plate can be dismantled with prefabricated crossbeam and be connected, can carry out prefabricated connecting device fast and be connected with the assembly of prefabricated post and prefabricated crossbeam respectively. The stiffening rib is connected the edge of a wing and the first connecting plate of first shaped steel respectively, can strengthen prefabricated connecting device's bulk joint strength. When a large earthquake occurs, the flange of the first section steel can yield and flash outwards, so that plastic deformation is caused to consume energy, and a favorable failure mode in earthquake-resistant design is formed. The prefabricated connecting device can be quickly put into use or produced after being simply repaired, and the controllability of the connecting quality is ensured.

In combination with the second possible implementation manner of the present application, in the third possible implementation manner of the present application, the first connecting plate and the second connecting plate are both provided with the first through hole for the tendon to pass through.

According to the technical scheme, the prestressed tendons penetrate through the prefabricated connecting device through the first through holes, the prestressed tendons are convenient to cross, the prestressed tendons can be in an elastic state along the length direction of the cross beam of the prestressed assembly frame structure, and the prestressed assembly frame structure has strong bending rigidity and bearing capacity.

In combination with the second possible implementation manner of the present application, in a fourth possible implementation manner of the present application, the first connecting plate is locked to the prefabricated column through a bolt, and the second connecting plate is locked to the prefabricated beam through a bolt.

According to the technical scheme, as the core node area of the prestress assembly frame structure, the prefabricated columns are connected with the first connecting plate, and the prefabricated beam is connected with the second connecting plate in a bolt locking mode, the connection method is simple in structure, high in construction speed, good in connection bearing performance, and easy to guarantee in construction quality.

With reference to the present application or the first possible implementation manner of the present application, in a fifth possible implementation manner of the present application, the precast beam includes a third connecting plate, a second section steel, a first cast-in reinforcement frame, and a first cast-in concrete body; the first pouring steel bar frame is connected to the third connecting plate, and the second section steel is connected to the third connecting plate and located in the first pouring steel bar frame; the first pouring steel bar frame and the second section steel are arranged in the first pouring concrete body; and the third connecting plate is locked on the prefabricated connecting device through a bolt.

Above-mentioned technical scheme, prefabricated crossbeam can pour the manufacturing in advance in the mill.

With reference to the fifth possible implementation manner of the present application, in a sixth possible implementation manner of the present application, the precast beam further includes a reinforcing stud; the reinforcing bolt is fixed on the flange of the second section steel.

According to the technical scheme, the reinforcing studs can enhance the connection strength of the first poured concrete body and the third connecting plate, so that the first poured concrete body and the third connecting plate are firmly combined, and the phenomenon that the interface of the third connecting plate and the first poured concrete body is too early separated from a gap in an earthquake is avoided, so that the overall stress performance of the prefabricated beam is improved.

With reference to the fifth possible implementation manner of the present application, in a seventh possible implementation manner of the present application, the precast beam further includes a first embedded pipe for the tendon to pass through, and the first embedded pipe is located in the first pouring steel bar frame; the third connecting plate is provided with a second through hole for the prestressed tendon to pass through, and the first embedded pipe is connected to the second through hole.

According to the technical scheme, the prestressed tendons penetrate through the prefabricated beam through the first embedded pipe and the second through hole, the prestressed tendons are prevented from being contacted with concrete, the prestressed tendons can conveniently penetrate and stretch in the length direction of the beam of the prestressed assembly frame structure, the prestressed tendons can be in an elastic state after being deformed in the length direction of the beam of the prestressed assembly frame structure, and the prestressed assembly frame structure has strong bending rigidity and bearing capacity.

With reference to the seventh possible implementation manner of the present application, in an eighth possible implementation manner of the present application, the prefabricated column includes a second cast steel bar frame, a square steel pipe, a second embedded pipe, a third embedded pipe, and a second cast concrete body; the square steel pipe is sleeved on the second pouring reinforcing steel frame; the second embedded pipe and the third embedded pipe penetrate through the square steel pipe, the second embedded pipe is arranged corresponding to the first embedded pipe, and the third embedded pipe is used for allowing a bolt connected with the prefabricated connecting device to penetrate through; the second pouring reinforcing steel frame, the second embedded pipe and the third embedded pipe are arranged in the second pouring concrete body.

Above-mentioned technical scheme, prefabricated post can pour the manufacturing in advance in the mill. The square steel pipe is used as a node core area and is used for connecting a first connecting plate in the prefabricated connecting device. The third embedded pipe penetrates through the square steel pipe, so that the bolt can conveniently penetrate through the third embedded pipe and then is connected with the square steel pipe and the first connecting plate. The second embedded pipe penetrates through the square steel pipe and is arranged corresponding to the first embedded pipe, so that the prestressed tendons sequentially penetrate through the prefabricated columns, the prefabricated connecting devices and the prefabricated beam along the length direction of the beam of the prestressed assembly frame structure and are fixed on one side of the square steel pipe.

With reference to the present application, in a ninth possible implementation manner of the present application, the prestressed assembly frame structure further includes an anchor; the anchorage device is used for fixing the prestressed tendons to the prefabricated column.

According to the technical scheme, the prestressed tendons are fixed on the square steel pipes of the prefabricated columns through the anchors so as to form tensile stress.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below.

FIG. 1 is a schematic structural view of a section of a node region in a pre-stressed assembled frame structure according to an alternative embodiment of the present application;

FIG. 2 is a schematic view of the overall construction of an alternative embodiment of the prestressed mounting frame construction of the present application;

FIG. 3 is a schematic diagram of a preformed column according to an alternative embodiment of the present application;

FIG. 4 is a schematic view of a prefabricated joint assembly according to an alternative embodiment of the present application;

FIG. 5 is a schematic structural view of a precast beam according to an alternative embodiment of the present application;

FIG. 6 is a front view of FIG. 1;

FIG. 7 is a sectional view taken along line A-A of FIG. 6;

FIG. 8 is a sectional view taken along line B-B of FIG. 6;

FIG. 9 is a cross-sectional view taken along line C-C of FIG. 6;

FIG. 10 is a sectional view taken along line D-D of FIG. 6;

fig. 11 is a sectional view taken along line E-E in fig. 6.

Icon: 1-prefabricating a column; 2-square steel tube; 3-a second pre-buried pipe; 4-a third pre-buried pipe; 5-longitudinal rib I; 6-stirrup I; 7-a second concreting body; 8-prefabricating a connecting device; 9-a first connection plate; 10, bolt one; 11-a first through hole; 12-a first section steel; 13-a stiffener; 14-a second connecting plate; 15-bolt two; 16-a second through hole; 17-prefabricating the cross beam; 18-a third connecting plate; 19-through hole three; 20-a second section steel; 21-reinforcing studs; 22-a first pre-buried pipe; 23-longitudinal rib two; 24-stirrup II; 25-a first cast concrete body; 26-prestressed tendons; 27-anchorage device.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The structural damage of the member is too large in the large earthquake in the current fabricated concrete structure, the controllability of the connection quality is poor, the restorability is basically absent, wet operation exists in a node area in the construction process, the construction mode is complex, and the efficiency is low.

An optional embodiment of this application provides a prestressing force assembly frame construction, prestressing force assembly frame construction uses prefabricated post 1, prefabricated crossbeam 17 and prefabricated connecting device 8 to form the node district as main structural component, and above-mentioned component is all in the scale production that becomes more meticulous of mill, and local welding and whole additional prestressing force can accomplish the construction after the on-the-spot concatenation, and the construction is simple and convenient, and is safe high-efficient, and the field work volume is few. The prestress assembly frame structure can guide deformation to be concentrated at the prefabricated connecting device 8, a favorable failure mode in earthquake-proof design is convenient to form, the prestress ribs 26 are always in an elastic stage in the deformation process of the whole structure, so that the main body member structure of the prestress assembly frame structure after earthquake is small in damage, the prestress assembly frame structure is not required to be repaired or simply repaired and then is quickly put into use or produced, the medium-earthquake repairable and even large-earthquake repairable in the earthquake-proof fortification target can be really achieved, the safety of personnel and property during earthquake is guaranteed, and the prestress assembly frame structure has good social benefit, economic benefit, good engineering application value and popularization and application prospect.

Please refer to fig. 1, fig. 2 and fig. 6 simultaneously. Fig. 1 shows a specific structure of a section of a node region in a prestressed mounting frame structure provided in an alternative embodiment of the present application, fig. 2 shows a specific structure of an entirety of the prestressed mounting frame structure provided in an alternative embodiment of the present application, and fig. 6 is a front view of fig. 1.

As shown in fig. 1, the prestressed assembly frame structure comprises a precast column 1, two precast connecting devices 8, two precast cross beams 17 and a prestressed tendon 26, which form a section of node area in the same linear direction of a horizontal plane, wherein the prestressed tendon 26 sequentially passes through one precast cross beam 17, one precast connecting device 8, the precast column 1, the other precast connecting device 8 and the other precast cross beam 17.

Referring to fig. 2, in a construction site, a plurality of prefabricated columns 1 are arranged in an array, a plurality of prefabricated connecting devices 8 can be arranged at intervals along the vertical direction of each prefabricated column 1, and a prefabricated beam 17 and two prefabricated connecting devices 8 are arranged between every two adjacent prefabricated columns 1 along the same horizontal plane, so that an integral transverse and longitudinal multi-layer type prestressed assembly frame structure is finally formed, and the prefabricated transverse and longitudinal multi-layer type prestressed assembly frame structure is suitable for building construction with different construction requirements. The precast columns 1 located at the outer edge ends of the prestressed assembly frame structure are used as anchoring points of the prestressed tendons 26, and two ends of the prestressed tendons 26 are respectively anchored on the square steel pipes 2 of the two precast columns 1 located in front and at the back as shown in fig. 2 through anchors 27 to form tensile stress. In the embodiment of the present application, the prestressed tendons 26 are prestressed steel strands or prestressed steel tendons, and the anchorage device 27 may be a clip-type anchorage device, a pier head anchorage device, or a nut.

The prestress assembling frame structure bears the vibration deformation through the prefabricated connecting device 8, energy can be consumed in the process that the prefabricated connecting device 8 generates plastic deformation, deformation is guided to be concentrated at the prefabricated connecting device 8 by the prestress assembling frame structure, a favorable failure mode in the anti-seismic design is convenient to form, the whole stress is clear, and the anti-seismic performance is good. The bending resistance bearing capacity of the integral frame is enhanced through the prestressed tendons 26, premature seam forming of the interface between the third connecting plates 18 on the two sides in the prefabricated beam 17 and the first pouring concrete body 25 under the action of an earthquake is prevented, the prestressed assembly frame structure is deformed or damaged only at the prefabricated connecting device 8 under the action of the earthquake (the first connecting plate 9 and the flange of the first section steel 12 yield in the failure mode of the connecting mode), the main body components are basically not damaged, the integral stress of the structure is clear, the anti-seismic performance is good, and the structure has certain restorable performance. The prefabricated column 1, the prefabricated beam 17 and the prefabricated connecting device 8 can be prefabricated in advance, and can be assembled quickly on site, so that the construction efficiency of the prestress assembling frame structure is effectively improved. All adopt detachable mode to connect (please refer to the following description for concrete connection mode) between prefabricated crossbeam 17, prefabricated connecting device 8 and the prefabricated post 1, the major structure structural component structural damage is little after the shake, can carry out the change restoration of destruction section fast after the shake for shake in the prestressing force assembly frame construction and repairable, even the major earthquake can be repairable, personnel and property safety when guaranteeing to shake has good social and economic benefits, and good engineering using value and popularization and application prospect.

Please continue to refer to fig. 3 and 11. FIG. 3 shows a specific structure of a prefabricated column 1 provided in an alternative embodiment of the present application; fig. 11 is a sectional view taken along line E-E in fig. 6, i.e., a schematic sectional view of the precast column 1.

The prefabricated column 1 comprises a second pouring steel bar frame, a square steel pipe 2, a second embedded pipe 3, a third embedded pipe 4 and a second pouring concrete body 7.

The second pouring reinforcing steel frame is a reinforcing steel framework formed by binding a plurality of longitudinal bars I5 and a plurality of stirrups I6. Four are no less than to indulge muscle 5 quantity, indulge muscle 5 intervals and extend along vertical direction, and 6 covers of stirrup are in the outside of indulging muscle one 5, and a plurality of stirrups 6 equidistance intervals set up on vertical direction, and non-compound stirrup or compound stirrup form can be chooseed for use to stirrup 6. The second casting reinforcing frame extends along the vertical direction. The square steel tube 2 is sleeved on the second casting reinforcement frame, and the vertical length of the square steel tube 2 is not less than the height of the first connecting plate 9 (please refer to fig. 4) in the prefabricated connecting device 8.

In the present embodiment, the second buried pipe 3 is a corrugated pipe, and the third buried pipe 4 is a PVC (polyvinyl chloride) pipe. Holes are formed in the two sides of the square steel pipe 2, so that the second embedded pipe 3 and the third embedded pipe 4 can be embedded conveniently. The second embedded pipe 3 and the third embedded pipe 4 are arranged in parallel in the square steel pipe 2, the length direction of the second embedded pipe is parallel to the length direction of the prefabricated beam 17 (please refer to fig. 1 or fig. 2), and the end ports of the second embedded pipe 3 and the third embedded pipe 4 are flush with the outer surface of the square steel pipe 2. The second embedded pipe 3 is used for the tendon 26 (please refer to fig. 1) to pass through, and the pipe diameter of the second embedded pipe 3 is slightly larger than the diameter of the tendon 26. The third embedded pipe 4 is used for a first bolt 10 (shown in reference to fig. 4) for connecting the prefabricated connecting device 8 to pass through, and the pipe diameter of the third embedded pipe 4 is slightly larger than that of the first bolt 10.

The second pouring reinforcing steel frame, the second embedded pipe 3 and the third embedded pipe 4 are arranged in a second pouring concrete body 7 to form the prefabricated column 1, and the second pouring concrete body 7 can be formed by formwork filling pouring through common concrete, recycled concrete or high-strength concrete.

The prefabricated column 1 can be cast in advance in a factory. The square steel pipe 2 is used as a node core area of the prestress assembly frame structure and is used for connecting a first connecting plate 9 in the prefabricated connecting device 8. Wherein the third pre-buried pipe 4 passes through the square steel pipe 2, thereby being convenient for the bolt to be connected the square steel pipe 2 with the first connecting plate 9 after passing through the third pre-buried pipe 4. The second pre-buried pipe 3 passes through the square steel pipe 2 and is arranged corresponding to the first pre-buried pipe 22 (see fig. 5), so that the pre-stressed tendons 26 sequentially pass through the precast columns 1, the precast connecting devices 8 and the precast beams 17 along the length direction of the beams of the pre-stressed assembled frame structure and are fixed on one side of the square steel pipe 2.

Please continue to refer to fig. 4, fig. 7 and fig. 8. FIG. 4 illustrates a specific configuration of a prefabricated coupling device 8 provided in an alternative embodiment of the present application; fig. 7 and 8 are a sectional view taken along a-a and a sectional view taken along B-B in fig. 6, respectively, i.e., a schematic sectional view of the prefabricated connecting device 8.

The prefabricated connecting device 8 comprises a first connecting plate 9, a second connecting plate 14, a first section steel 12 and a stiffening rib 13. In the embodiment of the present application, the first section steel 12 may be an H-section steel or an i-section steel, and the stiffening ribs 13 are right-angled triangular steel plates.

One end of the first section steel 12 is welded to a central position of the first connection plate 9, and the other end of the first section steel 12 is welded to a central position of the second connection plate 14 such that webs of the first section steel 12 are perpendicular to the first connection plate 9 and the second connection plate 14, respectively. A common stiffening rib 13 is arranged on the upper flange and the lower flange of the first section steel 12 respectively, and two right-angle sides of the stiffening rib 13 are welded on the flange of the first section steel 12 and the plate surface of the first connecting plate 9 respectively. The stiffening ribs 13 can enhance the overall connection strength of the prefabricated connecting device 8. When a large earthquake occurs, the flange of the first section steel 12 can yield and flash outwards, so that plastic deformation is caused to consume energy, and a favorable failure mode in earthquake-resistant design is formed. The prefabricated connecting device 8 can be quickly put into use or produced after being simply repaired, and the controllability of the connecting quality is ensured.

The thickness of the first connecting plate 9 is calculated theoretically and is generally thin. A plurality of first bolts 10 are arranged on one side of the first connecting plate 9, which is far away from the first section steel 12, and the plurality of first bolts 10 are uniformly and symmetrically arranged on the first connecting plate 9 and correspond to the position of the third embedded pipe 4 (see fig. 3) on the square steel pipe 2.

The cross-sectional dimension of the second connecting plate 14 is larger than that of the prefabricated beam 17 (please refer to fig. 1), a plurality of second bolts 15 are arranged on one side of the second connecting plate 14, which is far away from the first section steel 12, the number of the second bolts 15 is not less than six, and the plurality of second bolts 15 are uniformly and symmetrically arranged on the first second connecting plate.

The first connecting plate 9 and the second connecting plate 14 are both provided with first through holes for the prestressed tendons 26 to pass through. The first through hole comprises a first through hole 11 and a second through hole 16, and the first through hole 11 corresponds to the second through hole 16. The prestressed tendons 26 pass through the prefabricated connecting device 8 through the first through holes, so that the prestressed tendons 26 can be conveniently connected in a penetrating way, the prestressed tendons 26 can be in an elastic state after being deformed along the length direction of the cross beam of the prestressed assembly frame structure, and the prestressed assembly frame structure has strong bending rigidity and bearing capacity.

The first connecting plate 9 is locked on the square steel tube 2 of the prefabricated column 1 through a first bolt 10, the second connecting plate 14 is locked on the prefabricated beam 17 through a second bolt 15, and the prefabricated connecting device 8 can be quickly assembled and connected with the prefabricated column 1 and the prefabricated beam 17 respectively. As a core node area of the prestress assembly frame structure, the connection between the prefabricated column 1 and the first connecting plate 9 and the connection between the prefabricated beam 17 and the second connecting plate 14 are formed in a bolt locking mode, the connection method is simple in structure, high in construction speed, good in connection bearing performance and easy to guarantee construction quality.

Please continue to refer to fig. 5, 9 and 10. Fig. 5 shows a concrete structure of the precast beam 17 provided in an alternative embodiment of the present application; fig. 9 and 10 are a cross-sectional view taken along C-C and a cross-sectional view taken along D-D in fig. 6, respectively, that is, a cross-sectional view of the precast beam 17.

The prefabricated beam 17 comprises a third connecting plate 18, a second section steel 20, a first casting reinforcing frame, a first casting concrete body 25 and a first embedded pipe 22 for a prestressed tendon 26 to pass through. In the embodiment of the present application, the second type steel 20 may be H-shaped steel or i-shaped steel. The first cast-in concrete body 25 can be formed by formwork filling and casting with ordinary concrete, recycled concrete or high-strength concrete. The first pre-buried pipe 22 is a corrugated pipe.

The first casting reinforcing frame is surrounded by the second longitudinal bar 23 and the second stirrup 24. The second longitudinal ribs 23 extend along the length direction of the prefabricated transverse beam 17, and the end parts of the second longitudinal ribs 23 are welded at the inner side fixing positions of the third connecting plates 18. The second stirrups 24 are sleeved on the outer sides of the second longitudinal reinforcements 23 and are arranged at equal intervals.

One end of the second type steel 20 is welded at the central position of the third connecting plate 18 and is positioned in the middle of the plurality of longitudinal ribs 23 which are arranged at intervals up and down. A plurality of reinforcing studs 21 are welded to the upper and lower flange plates of the second type steel 20. The reinforcing studs 21 can enhance the connection strength of the first cast concrete body 25 and the third connecting plate 18, so that the first cast concrete body 25 and the third connecting plate 18 are firmly combined, and the interface between the third connecting plate 18 and the first cast concrete body 25 is prevented from being separated from a gap too early in an earthquake, so that the overall stress performance of the prefabricated beam 17 is improved.

The third connecting plate 18 is provided with a second through hole (not shown in the figure) for the tendon 26 to pass through, and the first embedded pipe 22 extends along the length direction of the precast beam 17 and is connected to the second through hole. The second through hole is arranged corresponding to the second through hole 16 (see fig. 4), so that the tendon 26 can sequentially pass through the second embedded pipe 3, the first through hole 11, the second through hole 16 and the first embedded pipe 22 on one side of the prestressed assembly frame structure (see fig. 2) until passing out of the prefabricated column 1 on the other side. The prestressed tendons 26 penetrate through the prefabricated beam 17 through the first embedded pipe 22 and the second through holes, so that the prestressed tendons 26 are prevented from contacting with concrete, the prestressed tendons 26 are convenient to penetrate and stretch in the length direction of the beam of the prestressed assembly frame structure, the prestressed tendons 26 can be in an elastic state after being deformed in the length direction of the beam of the prestressed assembly frame structure, and the prestressed assembly frame structure has strong bending rigidity and bearing capacity.

The width and the height of the third connecting plate 18 are both larger than the width and the height of the middle part of the prefabricated beam 17 after pouring. The upper side and the lower side of the third connecting plate 18 are respectively provided with a row of through holes III 19, and the first pouring reinforcing frame is positioned in the middle of the two rows of through holes III 19. The third through hole 19 is disposed corresponding to the second bolt 15 (see fig. 4), and when the third connecting plate 18 and the second connecting plate 14 (see fig. 4) are locked and connected by the second bolt 15.

The first cast-in steel reinforcement and the second section steel 20 are arranged in the first cast-in concrete body 25 to form the precast beam 17.

An alternative embodiment of the present application also provides a construction method of a prestressed fabricated frame structure, the construction method including the steps of:

(1) the prefabricated columns 1, the prefabricated transverse beams 17 and the prefabricated connecting devices 8 are prefabricated in the factory.

For the prefabricated column 1, firstly binding a longitudinal bar I5 and a stirrup I6 to form a second pouring reinforcing frame, then sleeving an upper steel pipe 2, penetrating a second embedded pipe 3 and a third embedded pipe 4, fixing the distance between the square steel pipe 2 and the second pouring reinforcing frame, and erecting a formwork to pour concrete to form a second pouring concrete body 7, thereby completing the prefabrication of the prefabricated column 1.

For the prefabricated beam 17, the third connecting plate 18 is welded to one end of the second section steel 20, and the reinforcing studs 21 are welded to the upper flange plate and the lower flange plate of the second section steel 20. And welding the end part of the second longitudinal rib 23 on the third connecting plate 18, and sleeving the second stirrup 24 on the outer side of the second longitudinal rib 23 at equal intervals. The first embedded pipe 22 is then penetrated, and concrete is cast by formwork to form a first cast concrete body 25, thereby completing prefabrication of the precast beam 17.

For the prefabricated connecting device 8, the first connecting plate 9 and the second connecting plate 14 are welded to both ends of the first section steel 12, respectively, and the reinforcing ribs 13 are welded between the first connecting plate 9 and the upper and lower flanges of the first section steel 12. Then, a first through hole 11 and a second through hole 16 are provided at the fixing positions of the first connecting plate 9 and the second connecting plate 14, and a first bolt 10 and a second bolt 15 are respectively arranged on the first connecting plate 9 and the second connecting plate 14 in a punching manner. The positions of the first through hole 11 and the second through hole 16 correspond to each other, and the diameters of the first through hole and the second through hole are slightly larger than the diameter of the prestressed tendon 26.

(2) A plurality of prefabricated columns 1 are fixed in an array on a foundation structure of a construction site.

(3) Connecting the precast cross beam 17 with the precast connecting device 8. The second connecting plate 14 and the third connecting plate 18 are connected by the second bolts 15, wherein each second bolt 15 needs to be tightened by a torque wrench to a calculated torque value to ensure the reliability of the connection.

(4) And hoisting the connected combined body of the prefabricated beam 17 and the prefabricated connecting device 8 to a fixed position between two adjacent prefabricated columns 1, and then, screwing the first bolt 10 through the third embedded pipe 4 by using a torque wrench to calculate a torque value.

(5) And (5) repeating the steps (3) to (4) to gradually complete the construction of the integral early-stage non-tensioning prestress stage of the prestress assembling frame structure.

(6) And sequentially passing the prestressed tendons 26 through the second embedded pipe 3, the first through hole 11, the second through hole 16 and the first embedded pipe 22 from one side of the prestressed assembly frame structure until the tendons penetrate out from the other side of the prestressed assembly frame structure.

Then, arranging anchorage devices 27 on two sides of the prestress assembly frame structure, tensioning the prestressed tendons 26 by using a feed-through jack to a designed initial prestress value, and then releasing tension and anchoring to complete the construction of the whole structure.

The construction method is used for construction of the prestress assembly frame structure, manufacturing and site construction of the prestress assembly frame structure can be efficiently carried out, construction is convenient, construction quality is high, and cost is lower.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. A pre-stressed assembly frame structure, characterized in that:

the prestress assembling frame structure comprises prefabricated columns, prefabricated beams, prefabricated connecting devices and prestressed tendons;

the end surface of the prefabricated beam is detachably connected with the prefabricated connecting device;

one end of the prefabricated connecting device, which is far away from the prefabricated cross beam, is detachably connected to the prefabricated column;

the prestressed tendons sequentially penetrate through the prefabricated columns, the prefabricated connecting devices and the prefabricated beams and are fixed on the prefabricated columns, and the prefabricated connecting devices are used for bearing vibration deformation.

2. The prestressed fitting frame structure of claim 1, wherein:

the pre-stressed assembly frame structure comprises a plurality of the prefabricated columns;

a plurality of the prefabricated columns are arranged in an array;

and a plurality of prefabricated connecting devices are detachably connected to each prefabricated column at intervals along the vertical direction.

3. The prestressed fitting frame structure according to claim 1 or 2, wherein:

the prefabricated connecting device comprises a first connecting plate, a second connecting plate, first section steel and a stiffening rib;

two ends of the first section steel are respectively connected to the first connecting plate and the second connecting plate;

two ends of the stiffening rib are respectively connected to the flange of the first section steel and the first connecting plate;

the first connecting plate is detachably connected to the prefabricated column, and the second connecting plate is detachably connected to the prefabricated beam.

4. The prestressed fitting frame structure of claim 3, wherein:

the first connecting plate and the second connecting plate are provided with first through holes for the prestressed tendons to pass through.

5. The prestressed fitting frame structure of claim 3, wherein:

the first connecting plate is locked on the prefabricated column through a bolt, and the second connecting plate is locked on the prefabricated beam through a bolt.

6. The prestressed fitting frame structure according to claim 1 or 2, wherein:

the prefabricated beam comprises a third connecting plate, second section steel, a first pouring reinforcing steel frame and a first pouring concrete body;

the first pouring steel bar frame is connected to the third connecting plate, and the second section steel is connected to the third connecting plate and located in the first pouring steel bar frame;

the first pouring steel bar frame and the second section steel are arranged in the first pouring concrete body;

and the third connecting plate is locked on the prefabricated connecting device through a bolt.

7. The pre-stressed assembly frame structure of claim 6, wherein:

the precast beam further comprises reinforcing studs;

the reinforcing stud is fixed on the flange of the second type steel.

8. The pre-stressed assembly frame structure of claim 6, wherein:

the prefabricated beam further comprises a first embedded pipe for the prestressed tendons to penetrate through, and the first embedded pipe is located in the first pouring steel bar frame;

and the third connecting plate is provided with a second through hole for the prestressed tendon to pass through, and the first embedded pipe is connected with the second through hole.

9. The prestressed fitting frame structure of claim 8, wherein:

the prefabricated column comprises a second pouring reinforcing steel frame, a square steel pipe, a second embedded pipe, a third embedded pipe and a second pouring concrete body;

the square steel pipe is sleeved on the second pouring reinforcing steel frame;

the second embedded pipe and the third embedded pipe penetrate through the square steel pipe, the second embedded pipe is arranged corresponding to the first embedded pipe, and the third embedded pipe is used for allowing a bolt connected with the prefabricated connecting device to penetrate through;

the second pouring reinforcing steel frame, the second embedded pipe and the third embedded pipe are arranged in the second pouring concrete body.

10. The prestressed fitting frame structure of claim 1, wherein:

the pre-stressed assembled frame structure further comprises an anchor;

the anchorage device is used for fixing the prestressed tendons to the prefabricated column.

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