Steel-concrete combined frame and positioning device

Abstract

The invention discloses a steel-concrete combined frame and a positioning device, the steel-concrete combined frame comprises a PSC beam, a lower-layer column arranged at the end part of the PSC beam and an upper-layer column arranged at the end part of the lower-layer column, and a column connecting node is connected between the upper-layer column and the lower-layer column; the steel-concrete combined frame and the PSC beams are connected with the steel corbels through the web connecting steel plates, a lower rib plate is omitted for reinforcement, fireproof thermal insulation materials are saved, primary connection of the connecting steel plates and the steel corbels can be adjusted to be balanced through jacks, hoisting is not needed, and the construction difficulty is reduced; concrete pouring can be started at a grouting joint at the two-thirds height of the PSC beam without starting from the top, the construction difficulty is reduced, a pouring cavity is formed in the beam, and compared with an air bag, the inflation and deflation steps are omitted, and construction is easier and more convenient; the positioning device can be used as a transition fixing device of the constructional steel bars, the stirrups and the constructional steel bars can be welded conveniently, and the construction difficulty is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building steel, and in particular to a steel-concrete composite frame and positioning device. BACKGROUND

[0002] In prefabricated buildings, the connecting joint of the upper and lower prefabricated concrete columns is a key part of the structure, and the traditional connecting methods such as sleeve grouting connection and grout anchor connection have the following problems:

[0003] Insufficient grouting tightness: grouting in the joint area is prone to spillover or grout leakage, resulting in incomplete grouting and affecting the connection strength; Steel connection reliability: the positioning accuracy of steel butt joint is high, and if the connection process is improper, such as insufficient sleeve extrusion and deviation of steel extension length, it is easy to form a weak link in the structure;

[0004] At the same time, the construction of the joint area is complex, and it needs to be supported and poured with concrete on site, which is tedious and low in construction efficiency. The connection of PSC beams and prefabricated concrete columns usually relies on embedded parts or steel corbels, but the existing structure has insufficient connection stiffness, and the bolt connection between the steel corbel and the beam end web is prone to deformation under stress, affecting the overall structure cooperative performance. SUMMARY

[0005] This section aims to summarize some aspects of the embodiments of the present application and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of the specification to avoid obscuring the purpose of this section, abstract and title, and such simplifications or omissions cannot be used to limit the scope of the present application.

[0006] In view of the above problems existing in the prior art steel-concrete composite frame and positioning device, the present application is proposed.

[0007] Therefore, the purpose of the present application is to provide a steel-concrete composite frame and positioning device which can save the installation of the lower rib plate, save fireproof and thermal insulation materials, do not need to be hoisted, and do not need to start pouring from the top end, and the construction difficulty of pouring into the cavity is lower than that of the air bag.

[0008] To solve the above technical problems, the present application provides the following technical scheme: a steel-concrete composite frame comprising a PSC beam, a lower column arranged at the end of the PSC beam, and an upper column arranged at the end of the lower column, the upper column and the lower column being connected by a column connecting joint; the upper column and the lower column are connected into a whole through the column connecting joint, and the outer wall of the column connecting joint is provided with a column grouting connector, the column grouting connector is sleeved on the outer wall of the column connecting joint, and is used for assisting concrete pouring and preventing spillover.

[0009] As a kind of preferred scheme of the steel-concrete composite frame of the present application, wherein: the upper column and lower column both include prefabricated concrete column, column steel bars are arranged in the prefabricated concrete column for improving the strength of the prefabricated concrete column, and pouring cavity is formed in the prefabricated concrete column for pouring concrete.

[0010] As a kind of preferred scheme of the steel-concrete composite frame of the present application, wherein: the prefabricated concrete column is fixed with embedded steel plate, and the embedded steel plate is connected with steel bracket, the PSC beam is provided with web connecting steel plate at the end, the web connecting steel plate is connected with the steel bracket, and the PSC beam is fixed to the outer wall of the prefabricated concrete column.

[0011] As a kind of preferred scheme of the steel-concrete composite frame of the present application, wherein: the outer wall of the PSC beam is provided with upper wing steel plate and lower wing short plate, the end of the upper wing steel plate and the lower wing short plate is connected with rib plate, the rib plate is connected with the web connecting steel plate, the outer wall of the upper wing steel plate is fixed with stud, construction steel bar is arranged between the upper wing steel plate and the lower wing short plate, and the construction steel bar is further sleeved with stirrup.

[0012] As a kind of preferred scheme of the steel-concrete composite frame of the present application, wherein: the column connecting node is provided with column lower part protruding steel bar and column upper part protruding steel bar, the end of the column lower part protruding steel bar and the column upper part protruding steel bar is in contact, and the outer wall of the column lower part protruding steel bar and the column upper part protruding steel bar is sleeved with extruded steel sleeve, and the outer wall of the column lower part protruding steel bar and the column upper part protruding steel bar is further sleeved with densified steel bar.

[0013] As a kind of preferred scheme of the positioning device, wherein: the fixing assembly includes outer cylinder, fixing ring arranged on the outer cylinder, adjusting rod arranged in the outer cylinder, limiting rod arranged on the outer cylinder and spring arranged between the outer cylinder and the adjusting rod; the positioning assembly includes telescopic air cylinder fixedly connected with the outer cylinder, guide cylinder fixedly connected with the fixed end of the telescopic air cylinder, telescopic cylinder sleeved in the guide cylinder, guide rod fixed to the outer wall of the telescopic cylinder, rotating rod fixed to the telescopic end of the telescopic air cylinder and positioning rod fixed to the end of the telescopic cylinder.

[0014] As a kind of preferred scheme of the positioning device, wherein: the outer wall of the top of the outer cylinder is provided with screw thread, the rod part of the outer cylinder is further provided with cavity, and the outer cylinder is further fixed with handle; the fixing ring is connected with the outer cylinder through screw thread, the adjusting rod is slidingly connected with the outer cylinder, and the bottom of the adjusting rod is provided with limiting ring.

[0015] As a kind of preferred scheme of the positioning device, wherein: the limiting rods are symmetrically arranged in the cavity, the limiting rods are rotationally connected with the inner wall of the outer cylinder, the limiting rods are further provided with protrusions, and the protrusions are embedded in the limiting ring.

[0016] As a preferred scheme of the positioning device, the guide cylinder is provided with a shaped sliding groove on the side wall, the telescopic cylinder is slidably connected with the guide cylinder, the guide rod is embedded in the sliding groove, and a rotating cavity is further formed in the telescopic cylinder, and two threaded grooves are formed in the inner wall of the rotating cavity.

[0017] As a preferred scheme of the positioning device, the guide rod is embedded in the sliding groove, and the positioning rod is symmetrically arranged on the end face of the telescopic cylinder.

[0018] The beneficial effects of the present application are as follows:

[0019] In the steel-concrete composite frame, the PSC beam is connected with the steel plate and the steel bracket through the web plate, the installation of the lower rib plate for reinforcement is saved, the fireproof and thermal insulation materials are saved, the initial connection of the steel plate and the steel bracket can be adjusted and balanced by the jack, hoisting is not needed, the construction difficulty is reduced, the concrete pouring can be started at the grouting joint at two-thirds of the height of the PSC beam, the pouring from the top is not needed, the construction difficulty is reduced, the pouring cavity is arranged in the beam, compared with the air bag, the inflation and deflation steps are saved, and the construction is more convenient; the positioning device can be used as a transition fixing device of the structural steel bars, the stirrups and the structural steel bars are conveniently welded, and the construction difficulty is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. Among them:

[0021] Figure 1 It is a schematic diagram of the overall structure of the steel-concrete composite frame.

[0022] Figure 2 It is a schematic diagram of the prefabricated concrete column structure of the steel-concrete composite frame.

[0023] Figure 3 It is a schematic diagram of the PSC beam structure of the steel-concrete composite frame.

[0024] Figure 4 It is a side view of the PSC beam structure of the steel-concrete composite frame.

[0025] Figure 5 It is a sectional view of the PSC beam A of the steel-concrete composite frame.

[0026] Figure 6 It is a schematic diagram of the column connection node structure of the steel-concrete composite frame.

[0027] Figure 7 Positioning device of the present application.

[0028] Figure 8 Positioning device of the present application.

[0029] Figure 9 Positioning device of the present application.

[0030] Figure 10 Positioning device of the present application.

[0031] Figure 11 Positioning device of the present application.

[0032] Figure 12 Positioning device of the present application.

[0033] Figure 13 Positioning device of the present application.

[0034] Figure 14 Positioning device of the present application.

[0035] Figure 15 Positioning device of the present application. DETAILED DESCRIPTION

[0036] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0037] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without the specific details and other implementations can be employed. Therefore, the present application is not limited to the details described herein and can be practiced with variations that are within the scope and spirit of the claims.

[0038] Secondly, the "one embodiment" or "embodiment" referred to herein can include specific features, structures or characteristics in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments.

[0039] Thirdly, the present application is described in detail in combination with the schematic diagram, in the detailed description of the embodiments of the present application, for the convenience of description, the sectional view of the device structure will be partially enlarged without the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present application. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in actual production.

[0040] Embodiment 1

[0041] Reference Figures 1-6 For the first embodiment of the present application, a steel-concrete composite frame is provided, including a PSC beam 100, a lower column 101 arranged at the end of the PSC beam 100 and an upper column 102 arranged at the end of the lower column 101, and a column connecting node 103 connected between the upper column 102 and the lower column 101; the upper column 102 and the lower column 101 are connected into a whole through the column connecting node 103, and the outer wall of the column connecting node 103 is provided with a column grouting joint 104, which is sleeved on the outer wall of the column connecting node 103, for assisting concrete pouring and preventing overflow. The upper column 102 and the lower column 101 both include a prefabricated concrete column 105, which is internally arranged with column steel bars 105a for improving the strength of the prefabricated concrete column 105, and is internally provided with a pouring cavity 105b for concrete pouring. The prefabricated concrete column 105 is fixedly provided with a pre-embedded steel plate 105c outside the wall, and the pre-embedded steel plate 105c is externally connected with a steel corbel 105d. The end of the PSC beam 100 is provided with a web connecting steel plate 101a, and the web connecting steel plate 101a is connected with the steel corbel 105d. The PSC beam 100 is fixed to the outer wall of the prefabricated concrete column 105. The outer wall of the PSC beam 100 is provided with an upper wing steel plate 100a and a lower wing short plate 100b, the ends of which are connected with a rib plate 100c, and the rib plate 100c is connected with the web connecting steel plate 101a. The outer wall of the upper wing steel plate 100a is fixedly arranged with a stud 100d, and the upper wing steel plate 100a and the lower wing short plate 100b are provided with a construction steel bar 100e and a stirrup 100f.

[0042] Among them, the PSC beam 100 is fixedly installed on the surface of the upper column 102 and the lower column 101, such as Figure 1As shown, after the PSC beam 100 is installed and fixed, a floor is installed on the surface of the PSC beam 100. Before the floor is installed and fixed, the upper column 102 and the lower column 101 are connected together through the column connecting joint 103, and then the annular column grouting joint 104 is sleeved outside the column connecting joint 103, and the column connecting joint 103 is sealed and wrapped through the column grouting joint 104, so as to prevent leakage during subsequent pouring.

[0043] The upper column 102 and the lower column 101 are both composed of a prefabricated concrete column 105, a plurality of column steel bars 105a arranged inside, which are used to form a grid-shaped framework of the column, and a mold for pouring a pouring cavity 105b is embedded at the center position of the grid-shaped framework. Through the mold for pouring the pouring cavity 105b, the pouring of concrete is completed, and the concrete passes through the prefabricated concrete column 105 into the middle of the column connecting joint 103, and through the protection of the column grouting joint 104, the pouring of concrete is completed and the upper column 102 and the lower column 101 are connected to form a whole.

[0044] The advantage of the above scheme is that the original pouring through the air bag needs to be inflated and deflated to form a cavity, while directly pouring into the pouring cavity 105b does not need to be inflated and deflated, and can be directly poured; the original pouring of the column needs to be poured from the top end, while the present scheme can start pouring at the column grouting joint 104, which is originally two-thirds of the column body, thereby reducing the construction difficulty.

[0045] The embedded steel plate 105c is fixed outside the prefabricated concrete column 105, and one is placed on each side where the PSC beam 100 needs to be installed. A steel corbel 105d is arranged on the surface of the embedded steel plate 105c for connecting with the PSC beam 100, and the web connecting plate 101a at the end of the PSC beam 100 is connected with the steel corbel 105d, so that the PSC beam 100 is fixed outside the prefabricated concrete column 105. The advantage of the above scheme is that the steel corbel 105d is connected with the PSC beam 100, and after forming, there is no need to install a lower rib plate. After the normal beam and column are fixed, a reinforcing rib or a lower rib plate needs to be installed at the angle between the beam and the column to strengthen and fix, so that the lower rib plate and the corresponding fireproof and thermal insulation materials can be omitted. In addition, during installation, hoisting is not required, and only one end of the PSC beam 100 is pre-connected with the steel corbel 105d without being fixed, and then the balance can be adjusted through a jack, thereby omitting the hoisting installation step and reducing the construction difficulty.

[0046] Reference Figures 4-5The outer wall of the PSC beam 100 is provided with an upper wing steel plate 100a and a lower wing short plate 100b, the end of the upper wing steel plate 100a and the lower wing short plate 100b is connected with a rib plate 100c, the rib plate 100c is connected with an abdominal plate connecting steel plate 101a, the outer wall of the upper wing steel plate 100a is arrayed and fixed with a stud 100d, a construction steel bar 100e is arranged in the upper wing steel plate 100a and the lower wing short plate 100b, the construction steel bar 100e is further sleeved with a stirrup 100f, the stirrup 100f is matched with the stud 100d and is used for fixing the construction steel bar 100e, and the commonly used is mutual welding. When the factory is standardized, the steel bracket 105d has been installed on the prefabricated concrete column 105 at the time of leaving the factory, so that the influence of site welding on concrete can be reduced, the PSC beam 100 is bolted with the steel bracket 105d through the abdominal plate connecting steel plate 101a, and after the PSC beam 100 is fixedly arranged through the steel bracket 105d, the upper wing steel plate 100a and the lower wing short plate 100b are welded on the PSC beam 100. The lower wing short plate 100b can adopt the same length of plate material as the upper wing steel plate 100a, or two short plates arranged at both ends can be adopted, preferably, in the embodiment, referring to Figure 3 , one short plate is arranged at each end, which can maximize the influence of welding on concrete.

[0047] The PSC beam 100 is composed of the upper wing steel plate 100a and the lower wing short plate 100b, as shown in Figure 5 , the construction steel bar 100e is arranged in the middle of the upper wing steel plate 100a and the lower wing short plate 100b, the construction steel bar 100e is arranged in multiple bundles, in this embodiment, three layers and two bundles per layer are taken as an example, a plurality of stirrups 100f are arranged on the surface, the construction steel bar 100e is wrapped by the stirrups 100f, meanwhile, a plurality of studs 100d are fixed on the surface of the upper wing steel plate 100a and the lower wing short plate 100b, one side of each stirrup 100f is fixed with a stud 100d, the construction steel bar 100e is limited by the cooperation of the stud 100d and the stirrup 100f, so that the construction steel bar 100e is fixed between the upper wing steel plate 100a and the lower wing short plate 100b, then the concrete material is injected in the middle, after the concrete material is fixed and formed, the thin fireproof paint is added on the surface to improve the fireproof performance.

[0048] The column lower part extending steel bar 103a is actually the steel bar part extending from the bottom of the upper layer column 102, and the column upper part extending steel bar 103b is the steel bar part extending from the top of the lower layer column 101, during installation, the column lower part extending steel bar 103a of the upper layer column 102 is aligned with the column upper part extending steel bar 103b at the bottom of the lower layer column 101, then the extruded steel sleeve 103c is well sleeved outside, and the extruded steel sleeve 103c is fixed on the upper surface by gradually extruding to complete the connection and fixation.

[0049] In summary, in use, first tie the column steel bars 105a to form a grid-shaped framework, pre-embed the mold for pouring the cavity 105b at the center position, fix the pre-embedded steel plate 105c at the designated position of the outer wall of the precast concrete column 105, i.e. the side of the designed installation position of the PSC beam 100, connect the pre-embedded steel plate 105c with the steel corbel 105d, then pre-connect the steel corbel 105d with the web connecting steel plate 101a, adjust the balance by the jack, fix after adjustment, then pour the precast concrete column 105, and maintain to the designed strength.

[0050] Weld the upper wing steel plate 100a, the lower wing short plate 100b and the end rib plate 100c to form a beam body steel frame, weld and fix the rib plate 100c with the web connecting steel plate 101a, weld the dowel 100d on the surface of the upper wing steel plate 100a according to the designed interval, pass the structural steel bars 100e into the upper and lower wing short plates, and set the outer layer with the stirrup 100f to fix the position of the structural steel bars through the dowel 100d and the stirrup 100f. Pour the concrete material into the steel frame, maintain to the designed strength, then brush the thin fireproof paint on the surface, and then assemble with the column.

[0051] Embodiment 2

[0052] Reference Figures 7-15 For the second embodiment of the application, which is different from the first embodiment, a positioning device comprises a fixing assembly 200, including an outer cylinder 201, a fixing ring 202 arranged on the outer cylinder 201, an adjusting rod 203 arranged in the outer cylinder 201, a limiting rod 204 arranged on the outer cylinder 201, a spring 205 arranged between the outer cylinder 201 and the adjusting rod 203; a positioning assembly 300, including a telescopic cylinder 301 fixedly connected with the outer cylinder 201, a guide cylinder 302 fixedly connected with the fixed end of the telescopic cylinder 301, a telescopic cylinder 303 sleeved in the guide cylinder 302, a guide rod 304 fixed to the outer wall of the telescopic cylinder 303, a rotating rod 305 fixed to the telescopic end of the telescopic cylinder 301, and a positioning rod 306 fixed to the end of the telescopic cylinder 303.

[0053] Further compared with embodiment 1, the outer cylinder 201 is provided with threads on the top outer wall, a cavity 201a is further formed on the rod of the outer cylinder 201, and a handle 201b is further fixed on the outer cylinder 201; the fixing ring 202 is connected with the outer cylinder 201 through threads, the adjusting rod 203 is slidingly connected with the outer cylinder 201, and a limiting ring 203a is formed on the bottom of the adjusting rod 203. The limiting rods 204 are symmetrically arranged in the cavity 201a, the limiting rods 204 are rotatably connected with the inner wall of the outer cylinder 201, the limiting rods 204 are further provided with protrusions 204a, and the protrusions 204a are embedded in the limiting ring 203a. The L-shaped sliding groove 302a is formed on the side wall of the guide cylinder 302, the telescopic cylinder 303 is slidingly connected with the guide cylinder 302, the guide rod 304 is embedded in the sliding groove 302a, and the rotating cavity 303a is further formed in the telescopic cylinder 303, and two thread grooves 303b are formed on the inner wall of the rotating cavity 303a. The rotating rods 305 are respectively embedded in one of the thread grooves 303b, and the positioning rods 306 are symmetrically arranged on the end face of the telescopic cylinder 303.

[0054] The structural steel bars 100e close to the inner side walls of the upper wing steel plate 100a and the lower wing short plate 100b are very close to the studs 100d, and can be directly welded with the studs 100d after the studs 100d are punched, the structural steel bars 100e in the central row are not crossed by the studs 100d, cannot be preliminarily positioned and fixed, and are too long to be welded with all the stirrups 100f and the studs 100d at the same time, and are actually welded step by step, so that the positioning device is needed to preliminarily position the structural steel bars 100e and then weld them step by step. Figure 5 It can be seen that the structural steel bars 100e are divided into three rows, the top and bottom rows are very close to the studs 100d and can be directly positioned by the studs 100d and the stirrups 100f and then directly welded, the structural steel bars 100e in the central row are not crossed by the studs 100d and cannot be preliminarily positioned and fixed, and are too long to be welded with all the stirrups 100f and the studs 100d at the same time, and are actually welded step by step, so that the positioning device is needed to preliminarily position the structural steel bars 100e and then weld them step by step. Figure 7 That is, the positioning device can preliminarily position the structural steel bars 100e in the central row of the upper wing steel plate 100a and the lower wing short plate 100b, the studs 100d are welded with the structural steel bars 100e close to the inner side walls of the upper wing steel plate 100a and the lower wing short plate 100b first, then the positioning device can be gradually removed, and the studs 100d are gradually replaced, and the positioning device plays a transitional role.

[0055] When the positioning device is used, the adjusting rod 203 is first pushed to be inserted into the outer cylinder 201 and to press the spring 205. Since the protrusion 204a of the limiting rod 204 is embedded into the limiting ring 203a of the adjusting rod 203, when the adjusting rod 203 moves, the protrusion 204a is driven to move, the limiting ring 203a is extended to be equivalent to pressing the protrusion 204a, the limiting rod 204 is rotated, the limiting rod 204 is received into the cavity 201a and is no longer unfolded. At this time, the positioning device can be inserted into the reserved hole of the upper wing steel plate 100a. When the limiting rod 204 is completely extended and is between the upper wing steel plate 100a and the lower wing short plate 100b, the adjusting rod 203 is loosened, the spring 205 rebounds, the adjusting rod 203 is reset, the limiting ring 203a is lifted, the protrusion 204a in the limiting ring 203a is lifted, the limiting rod 204 is rotated, the limiting rod 204 is unfolded from the cavity 201a. At this time, the outer cylinder 201 is pulled by the handle 201b to make the limiting rod 204 abut against the steel plate, the fixed ring 202 is rotated to make the fixed ring 202 abut against the other side of the steel plate, until the fixed ring 202 and the limiting rod 204 press the steel plate, the installation and fixation of the positioning device in the reserved hole are completed.

[0056] The positioning assembly 300 is extended into the upper wing steel plate 100a and the lower wing short plate 100b, at this time, the telescopic cylinder 301 is started, the telescopic end of the telescopic cylinder 301 is extended into the telescopic cylinder 303, the telescopic end of the telescopic cylinder 301 is fixed with the rotating rod 305, the rotating rod 305 is extended into the telescopic cylinder 303, the outer wall of the telescopic cylinder 303 is fixed with the guide rod 304, and the guide rod 304 is embedded into the L-shaped sliding groove 302a, the initial position of the guide rod 304 is in the straight groove in the same direction as the telescopic direction of the telescopic cylinder 301, the guide rod 304 is limited to not make the telescopic cylinder 303 rotate, therefore the rotating rod 305 cannot relatively move in the threaded groove 303b, the rotating rod 305 pushes the threaded groove 303b, that is, the telescopic cylinder 303 is extended out, at this time, the positioning rod of the end surface of the telescopic cylinder 303 extends to both sides of the structural steel bar 100e, when the guide rod 304 moves to the top of the straight groove, it enters the groove perpendicular to it, that is, the L-shaped corner, at this time, the telescopic cylinder 303 is no longer limited and can rotate, the telescopic cylinder 301 continues to push the rotating rod 305, at this time, the telescopic cylinder 303 cannot continue to extend out due to being limited by the L-shaped sliding groove 302a, the rotating rod 305 drives the threaded groove 303b to rotate, that is, the extension of the rotating rod 305 is converted into the rotation of the threaded groove 303b, that is, the rotation of the telescopic cylinder 303, the end surface positioning rod 306 starts to rotate, until the two rods are respectively abutted with the structural steel bar 100e between the two rods, that is, one positioning rod 306 is on the left side of the structural steel bar 100e, and one positioning rod 306 is on the right side of the structural steel bar 100e, it should be noted that the positioning rod 306 can be provided with a groove similar to the shape of the structural steel bar 100e on the side wall to increase the clamping effect on the structural steel bar 100e, through the above scheme, the initial positioning of the structural steel bar 100e is completed, then every other stud 100d has a positioning device for positioning and clamping the extended structural steel bar 100e, after the overall installation is completed, the structural steel bar 100e is gradually welded, after the stirrup 100f is welded, the above operation can be performed in reverse, the positioning device is disassembled, the stud 100d is replaced with the stirrup 100f, the structural steel bar 100e is welded and fixed with the stirrup 100f, and the stirrup 100f is welded and fixed with a plurality of studs 100d, thus the positioning device completes the transition positioning and fixing of the structural steel bar 100e, which facilitates the welding operation of the stirrup 100f on the structural steel bar 100e, and all the positioning devices are gradually replaced by the stud 100d in the subsequent process, after the positioning device is disassembled, it can be recycled.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and not limit the present application, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A steel-concrete composite frame, characterized in that: include, A PSC beam (100), a lower column (101) located at the end of the PSC beam (100) and an upper column (102) located at the end of the lower column (101), and a column connection node (103) connecting the upper column (102) and the lower column (101). The upper column (102) and the lower column (101) are connected into a whole through the column connection node (103), and a column grouting joint (104) is provided on the outer wall of the column connection node (103). The column grouting joint (104) is sleeved on the outer wall of the column connection node (103) to assist in concrete pouring and prevent overflow.

2. The steel-concrete composite frame as described in claim 1, characterized in that: Both the upper column (102) and the lower column (101) include precast concrete columns (105). The precast concrete columns (105) are internally arranged with column steel bars (105a) to improve the strength of the precast concrete columns (105). The precast concrete columns (105) are also internally provided with casting cavities (105b) for concrete pouring.

3. The steel-concrete composite frame as described in claim 2, characterized in that: The precast concrete column (105) has an embedded steel plate (105c) fixed to its outer wall, and the embedded steel plate (105c) is connected to a steel bracket (105d). The PSC beam (100) has a web connecting steel plate (101a) at its end, and the web connecting steel plate (101a) is connected to the steel bracket (105d). The PSC beam (100) is fixed to the outer wall of the precast concrete column (105).

4. The steel-concrete composite frame as described in claim 3, characterized in that: The outer wall of the PSC beam (100) is provided with an upper wing steel plate (100a) and a lower wing short plate (100b). The ends of the upper wing steel plate (100a) and the lower wing short plate (100b) are connected to ribs (100c), and the ribs (100c) are connected to the web connecting steel plate (101a). The outer wall of the upper wing steel plate (100a) is fixed with an array of studs (100d). A structural steel bar (100e) is provided between the upper wing steel plate (100a) and the lower wing short plate (100b). The structural steel bar (100e) is also fitted with stirrups (100f).

5. The steel-concrete composite frame as described in claim 4, characterized in that: The column connection node (103) is provided with a lower column extension bar (103a) and an upper column extension bar (103b). The lower column extension bar (103a) and the upper column extension bar (103b) are abutted at their ends and are fitted with extruded steel sleeves (103c) on their outer walls. The lower column extension bar (103a) and the upper column extension bar (103b) are also fitted with reinforced steel bars (103d) on their outer walls.

6. A positioning device for a steel-concrete composite frame as described in claim 5, characterized in that: include, The fixing assembly (200) includes an outer cylinder (201), a fixing ring (202) disposed on the outer cylinder (201), an adjusting rod (203) disposed inside the outer cylinder (201), a limiting rod (204) disposed on the outer cylinder (201), and a spring (205) disposed between the outer cylinder (201) and the adjusting rod (203); The positioning assembly (300) includes a telescopic cylinder (301) fixedly connected to the outer cylinder (201), a guide cylinder (302) fixedly connected to the fixed end of the telescopic cylinder (301), a telescopic cylinder (303) sleeved inside the guide cylinder (302), a guide rod (304) fixed to the outer wall of the telescopic cylinder (303), a rotating rod (305) fixed to the telescopic end of the telescopic cylinder (301), and a positioning rod (306) fixed to the end of the telescopic cylinder (303).

7. The steel-concrete composite frame and positioning device as described in claim 6, characterized in that: The outer cylinder (201) has a threaded top outer wall, and a cavity (201a) is also provided on the rod part of the outer cylinder (201). A handle (201b) is also fixed on the outer cylinder (201). The fixing ring (202) is connected to the outer cylinder (201) by a thread, and the adjusting rod (203) is slidably connected to the outer cylinder (201). A limit ring (203a) is provided at the bottom of the adjusting rod (203).

8. The steel-concrete composite frame and positioning device as described in claim 7, characterized in that: The limiting rod (204) is symmetrically arranged in the cavity (201a). The limiting rod (204) is rotatably connected to the inner wall of the outer cylinder (201). The limiting rod (204) is also provided with a protrusion (204a), which is embedded in the limiting ring (203a).

9. The steel-concrete composite frame and positioning device as described in claim 8, characterized in that: The guide cylinder (302) has an L-shaped groove (302a) on its side wall, and the telescopic cylinder (303) is slidably connected to the guide cylinder (302); the guide rod (304) is embedded in the groove (302a); the telescopic cylinder (303) also has a rotating cavity (303a), and the inner wall of the rotating cavity (303a) has two threaded grooves (303b).

10. The steel-concrete composite frame and positioning device as described in claim 9, characterized in that: The rotating rod (305) has two ends embedded in a threaded groove (303b), and the positioning rod (306) is symmetrically arranged on the end face of the telescopic cylinder (303).

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