Efficiently reinforced laminated beam section reinforcement structure and construction method thereof

Abstract

The application discloses a high-efficiency lacing construction of a laminated beam section and a construction method thereof. For the laminated beam with a common section width of 400-800 mm in engineering, different numbers of composite stirrups are combined, and the hook forms and positions of the stirrups are changed to facilitate efficient lacing. Compared with the prior art, the application solves the problem of collision between the 135-degree hook of the traditional stirrup and the longitudinal reinforcement by optimizing the stirrup construction form of the laminated beam section, increases the operation space for lacing the top reinforcement of the laminated beam, reduces the construction difficulty, and effectively improves the on-site construction efficiency of the laminated beam. The lacing construction of the laminated beam section solves the construction pain point of the difficulty in lacing the laminated beam of the existing fabricated frame structure, can avoid the quality problems caused by the difficulty in lacing the stirrup on site, guarantees the safety of the structure, and meanwhile, the optimized composite stirrup construction of the laminated beam is simple, convenient to produce, and can realize efficient processing and efficient construction.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of building structures, and relates to a fabricated frame structure, in particular to a high-efficiency rebar-penetrating composite beam cross-section rebar structure and a construction method thereof. BACKGROUND

[0002] The prefabricated concrete composite beam is a structural component that is partially prefabricated in a factory and installed, rebar-penetrated and cast with a composite layer of concrete at a construction site to form a whole, has high installation efficiency, good coordination with the floor, can be combined with large steel molds, cast-in-place concrete columns, prefabricated concrete columns, concrete-filled steel tube columns and the like to form a frame structure, and is widely used in fabricated concrete structures.

[0003] Top rebar penetration is a key step in the on-site construction of the prefabricated concrete composite beam. In the design and construction process of the prefabricated concrete composite beam in the fabricated concrete structure, when the beam cross-section width exceeds 250 mm, a composite stirrup with a 135° hook needs to be used. However, due to the dense arrangement of the bottom rebar, the 135° hook of the composite stirrup is prone to rebar collision, and in the actual construction process, the hook needs to be arranged in the composite layer, which seriously affects the operation space of the top rebar penetration and greatly reduces the construction efficiency, or the top rebar penetration cannot be realized due to the rebar collision between the top rebar and the hook.

[0004] The prior art proposes to solve the rebar collision problem between the top rebar and the hook by using a 90° hook or a welded closed stirrup, but the 90° hook has the problems of insufficient bond strength after the protective layer is peeled off and anchoring failure, and the welded closed stirrup has unstable quality and high safety risk.

[0005] In addition, although the specification requires that the maximum limb distance of the stirrup be 200 mm or 250 mm, for a composite beam with a smaller cross-section width (such as 400 mm), considering the difficulty in binding the 135° rebar and the difficulty in ensuring the construction quality, two closed stirrups are still selected to form a four-limb composite stirrup in the current engineering, the limb distance of the stirrup is small, which further increases the difficulty of top rebar penetration. When the top rebar cannot be penetrated due to the obstruction of the stirrup, the construction site may adopt the method of cutting the stirrup first, penetrating the rebar and then welding the repair, which is difficult to ensure the welding quality of the stirrup and greatly increases the safety hazard of the structure.

[0006] Therefore, it is urgent to develop a high-efficiency rebar-penetrating composite beam cross-section structure to solve the problems of hook and longitudinal rebar rebar collision, top rebar penetration difficulty, low construction efficiency, high quality and safety risk and the like. SUMMARY

[0007] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the present application is to provide a high-efficiency rebar-penetrating composite beam cross-section rebar structure and a construction method thereof to solve the problems of top rebar penetration difficulty, rebar collision, low construction efficiency, high quality and safety risk and the like of the existing composite beam.

[0008] To achieve the above object, the technical scheme adopted by the present application is:

[0009] The high-efficiency penetrating bar composite beam section structure comprises a composite stirrup, a prefabricated layer concrete and a composite layer concrete, and is suitable for a composite beam section with a section width ranging from 400 to 800 mm.

[0010] When the section width ranges from 400 to 500 mm, the composite stirrup is a three-limb stirrup formed by a double-limb closed stirrup sleeve one and a tensile bar, and the hook of the double-limb closed stirrup sleeve one is folded twice and overlaps with the vertical segment of the tensile bar.

[0011] When the section width ranges from 500 to 700 mm, the composite stirrup is a four-limb stirrup formed by the double-limb closed stirrup sleeve one and a double-limb closed stirrup sleeve two, the hook of the double-limb closed stirrup sleeve one is folded twice and overlaps with one vertical segment of the double-limb closed stirrup sleeve two, and the two hooks of the double-limb closed stirrup sleeve two are folded twice and overlap with the two vertical segments of the double-limb closed stirrup sleeve two, respectively.

[0012] When the section width ranges from 700 to 800 mm, the composite stirrup is a five-limb stirrup formed by the double-limb closed stirrup sleeve one, the tensile bar and a double-limb closed stirrup sleeve three, the hook of the double-limb closed stirrup sleeve one is folded twice and overlaps with one vertical segment of the double-limb closed stirrup sleeve three, the hook of the double-limb closed stirrup sleeve three is folded twice and overlaps with one vertical segment of the double-limb closed stirrup sleeve three, and the hook of the double-limb closed stirrup sleeve three is folded twice and overlaps with the vertical segment of the tensile bar.

[0013] In each structure, the hook of the double-limb closed stirrup sleeve one is folded, and one of the folded segments overlaps with one vertical segment of the double-limb closed stirrup sleeve one.

[0014] In one embodiment, in the structure one, the hook of the tensile bar near the end of the composite layer concrete is folded twice and overlaps with one vertical segment of the double-limb closed stirrup sleeve one, and the hook of the tensile bar near the end of the prefabricated layer concrete is a 180° hook or is folded twice and overlaps with one vertical segment of the double-limb closed stirrup sleeve one. Similarly, in the structure three, the hook of the tensile bar near the end of the composite layer concrete is folded twice and overlaps with one vertical segment of the double-limb closed stirrup sleeve three, and the hook of the tensile bar near the end of the prefabricated layer concrete is a 180° hook or is folded twice and overlaps with one vertical segment of the double-limb closed stirrup sleeve three.

[0015] In one embodiment, in the structure one and the structure three, the hook of the tensile bar is located in the composite layer concrete or in the composite layer concrete and part of the prefabricated layer concrete, and the hook of the tensile bar is located in the prefabricated layer concrete.

[0016] In one embodiment, the last bending segment length of the hook one, hook two, hook three, hook four, hook five, hook six and hook seven is not less than 8 times of the diameter of the corresponding hoop or tendon.

[0017] In one embodiment, the two hook fives of the double limb closed hoop sleeve two are located in the precast layer concrete; the hook six and hook seven of the double limb closed hoop sleeve three are located in the precast layer concrete to reduce the influence of the hook on the top tendon.

[0018] In one embodiment, in each configuration, the hook two of the double limb closed hoop sleeve one is located in the superimposed layer concrete, or in the superimposed layer concrete and part of the precast layer concrete; the hook two of the double limb closed hoop sleeve one is located in the superimposed layer concrete after being bent once, or in the superimposed layer concrete and part of the precast layer concrete, or is anchored into the precast layer concrete after being bent twice.

[0019] In one embodiment, the high-efficiency perforated superimposed beam cross-section configuration further comprises a top tendon, a waist tendon and a bottom tendon, the top tendon uses high-strength steel with a tensile strength of 500 MPa or more to reduce the number of top tendons, or uses ordinary steel; the composite hoop uses high-strength steel with a tensile strength of 500 MPa or more to reduce the diameter of the composite hoop, or uses ordinary steel, and the bottom tendon and the waist tendon are ordinary steel or pre-tensioned prestressed steel strands.

[0020] In one embodiment, when the superimposed beam flange is not provided with a flange floor, the hook two of the double limb closed hoop sleeve one needs to be bent twice, the last bending segment bending angle is 90° or 45°, and the last bending segment is all anchored into the precast layer concrete and does not have a steel conflict with the waist tendon.

[0021] In one embodiment, the high-efficiency perforated superimposed beam adopting the high-efficiency perforated superimposed beam cross-section configuration is combined with various frame columns to form beam-column joints and frame structures, such as a steel pipe concrete column, a precast concrete column, a cast-in-situ concrete column, a steel reinforced concrete column, etc.

[0022] The application also provides a construction method of the high-efficiency perforated superimposed beam, comprising the following steps:

[0023] Step 1, binding and fixing the hoop sleeve of each component of the composite hoop and the tendon to form an integral whole, and fixing all the composite hoops of the superimposed beam on the mold bottom plate of the superimposed beam;

[0024] Step 2, perforating the bottom tendon and the waist tendon of the superimposed beam, moving the composite hoop to the corresponding position according to the design requirements, and binding the steel cage;

[0025] Step 3, supporting the side mold of the superimposed beam, and pouring the precast layer concrete;

[0026] Step 4, after the composite beam is installed in place, the top bar is arranged, and then the composite layer concrete is poured.

[0027] In one embodiment, when the bottom bar and the waist bar adopt the pre-tensioning method prestressed steel strand, the step 2 pre-tensioning steel strand is pulled, and then the composite stirrup and the binding steel reinforcement cage are moved.

[0028] Compared with the prior art, the operation space for arranging the top bar is increased, the construction difficulty is reduced, and the quality and safety hidden danger caused by cutting the stirrup due to the failure of arranging the top bar on the construction site is eliminated under the condition of ensuring the section bearing capacity by optimizing the arrangement of the composite stirrup.

[0029] The application can also use high-strength steel bars as top bars to further reduce the number of top bars that need to be arranged on site and improve construction efficiency.

[0030] The node component of the application is simple, the force transmission path is clear, and the construction is convenient, which solves the application pain points of the existing modular semi-rigid connection nodes of concrete. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a plane schematic view of the composite beam section structure one of the application.

[0032] Figure 2 It is a plane schematic view of another method of the composite beam section structure one of the application.

[0033] Figure 3 It is a plane schematic view of the composite beam section structure two of the application.

[0034] Figure 4 It is a plane schematic view of the composite beam section structure three of the application.

[0035] Figure 5 It is a plane schematic view of the composite beam section structure of the application, in which only one side is provided with a flange floor.

[0036] Figure 6 It is a plane schematic view of the composite beam section structure of the application, in which neither side is provided with a flange floor.

[0037] In the figure:

[0038] 1-composite beam section; 11-composite stirrup; 12-top bar; 13-waist bar; 14-bottom bar; 15-precast layer concrete; 16-composite layer concrete; 17-flange floor; 2-double limb closed stirrup sleeve one; 21-hook one; 22-hook two; 3-tensioning bar; 31-hook three; 32-hook four; 4-double limb closed stirrup sleeve two; 41-hook five; 5-double limb closed stirrup sleeve three; 51-hook six; 52-hook seven. DETAILED DESCRIPTION

[0039] The specific technical solutions of the present application are described below in combination with examples.

[0040] The high-efficiency penetrating bar composite beam section structure of the present application aims to solve the problem of collision between the traditional 135° hook and the longitudinal reinforcement by optimizing the configuration form of the stirrup of the composite beam section, increase the operation space of the penetrating top bar of the composite beam, reduce the construction difficulty, effectively improve the on-site construction efficiency of the composite beam, and is suitable for the composite beam section with a section width range of 400-800 mm.

[0041] Reference Figure 1 As shown in the figure, when the section width range is 400-500 mm, it is configuration one, which adopts the three-limb composite stirrup 11 formed by the combination of the double-limb closed stirrup sleeve one 2 and the tension bar 3. Among them, the hook one 21 of the double-limb closed stirrup sleeve one 2 is folded twice and overlaps with the vertical section of the tension bar 3, and the last folded section is a 90° hook, which avoids the problem of collision between the traditional 135° hook and the longitudinal reinforcement, minimizes the influence of the hook one 21 on the space of the penetrating top bar 12, and at the same time, the last end of the hook one 21 is anchored into the core area of the concrete by being folded twice, preventing the anchoring failure of the stirrup caused by the peeling of the protective layer; the hook two 22 of the double-limb closed stirrup sleeve one 2 is folded, and one of the folded sections overlaps with one of the vertical sections of the double-limb closed stirrup sleeve one 2, as shown in the figure. Although the anchoring position of the hook two 22 is located at the edge area of the composite beam section, it is still anchored in the core concrete as a whole due to the existence of the flange floor, and there is no risk of anchoring failure after the protective layer peels off. A 90° hook is bent once to meet the anchoring requirement, saving the amount of steel used for the stirrup; unlike the traditional tension bar with 135° hooks at both ends, the hook three 31 of the tension bar 3 near one end of the composite layer concrete 16 is folded twice and overlaps with one of the vertical sections of the double-limb closed stirrup sleeve one 2, avoiding collision with the top bar and facilitating binding. The hook four 32 near one end of the prefabricated layer concrete 15 adopts a 180° hook, which anchors in the core area of the concrete while trying to avoid the bottom bar as much as possible. When there is still a problem of steel conflict after adopting a 180° hook, it can be folded twice and overlap with one of the vertical sections of the double-limb closed stirrup sleeve one 2, as shown in the figure. Figure 2 .

[0042] Reference Figure 3As shown, when the cross-section width ranges from 500 to 700 mm, it is structure two, which adopts four-limb composite stirrup 11 composed of double-limb closed stirrup sleeve one 2 and double-limb closed stirrup sleeve two 4. The hook one 21 of the double-limb closed stirrup sleeve one 2 is folded twice and overlaps with a vertical segment of the double-limb closed stirrup sleeve two 4, which shortens the length of the first folded segment, reduces the amount of steel and cost while ensuring to reduce the anchoring of the hook one 21 into the core concrete and reduce the influence on the top bar. The hook two 22 of the double-limb closed stirrup sleeve one 2 is folded, and one of the folded segments overlaps with a vertical segment of the double-limb closed stirrup sleeve one 2, as shown in the figure. The two hooks five 41 of the double-limb closed stirrup sleeve two 4 are folded twice and overlap with two vertical segments of the double-limb closed stirrup sleeve two 4, respectively.

[0043] Reference Figure 4 As shown, when the cross-section width ranges from 700 to 800 mm, it is structure three, which adopts five-limb composite stirrup 11 composed of double-limb closed stirrup sleeve one 2, tension bar 3 and double-limb closed stirrup sleeve three 5. The hook one 21 of the double-limb closed stirrup sleeve one 2 is folded twice and overlaps with a vertical segment of the double-limb closed stirrup sleeve three 5. The hook two 22 of the double-limb closed stirrup sleeve one 2 is folded, and one of the folded segments overlaps with a vertical segment of the double-limb closed stirrup sleeve one 2, as shown in the figure. The hook six 51 of the double-limb closed stirrup sleeve three 5 is folded twice and overlaps with a vertical segment of the double-limb closed stirrup sleeve three 5. The hook seven 52 is folded twice and overlaps with a vertical segment of the tension bar 3. Similarly, the hook three 31 of the tension bar 3 near one end of the composite layer concrete 16 is folded twice and overlaps with a vertical segment of the double-limb closed stirrup sleeve three 5. The hook four 32 near one end of the prefabricated layer concrete 15 adopts a 180° hook, or is folded twice and overlaps with a vertical segment of the double-limb closed stirrup sleeve three 5.

[0044] In this structure, for the composite beam cross-section 1, when the cross-section width is 500 mm, structure one or structure two can be selected, and structure two is preferred. When the cross-section width is 700 mm, structure two or structure three can be selected, and structure three is preferred.

[0045] In this structure, for each structure, according to the diameter of the stirrup, to meet the anchoring length requirement of the hook, the hook two 22 of the double-limb closed stirrup sleeve one 2 is located in the composite layer concrete 16, or in the composite layer concrete 16 and part of the prefabricated layer concrete 15. The hook two 22 of the double-limb closed stirrup sleeve one 2 is folded once and located in the composite layer concrete 16, or in the composite layer concrete 16 and part of the prefabricated layer concrete 15, or is folded twice and anchored in the prefabricated layer concrete 15.

[0046] In the structure, for the configuration one and the configuration three, according to the different diameters of the tensile reinforcement, the hook three 31 of the tensile reinforcement 3 is located in the composite layer concrete 16 or in the composite layer concrete 16 and the partial prefabricated layer concrete 15 to meet the requirement of the anchoring length of the hook; and the hook four 32 is located in the prefabricated layer concrete 15.

[0047] In the structure, the configuration two, by setting the two hooks five 41 of the double-limb closed stirrup sleeve two 4 in the prefabricated layer concrete 15 at the bottom of the cross section, the influence of the hook five 41 on the setting of the top reinforcement 12 can be further reduced, and the overlapping of the hooks at the same position is avoided; when the process is limited, the hook five 41 can also be set at the top of the cross section; the configuration three, similarly, to increase the setting space of the top reinforcement 12, the hook six 51 and the hook seven 52 of the double-limb closed stirrup sleeve three 5 are all set in the prefabricated layer concrete 15; when the process is limited, the hook six 51 and the hook seven 52 can also be set at the top of the cross section.

[0048] In the structure, the length of the last bending segment of the hook one 21, the hook two 22, the hook three 31, the hook four 32, the hook five 41, the hook six 51 and the hook seven 52 is not less than 8 times of the diameter of the corresponding stirrup or tensile reinforcement 3 to ensure the anchoring performance and prevent the structure from being damaged due to anchoring failure.

[0049] In the structure, the high-efficiency reinforced composite beam cross section structure further comprises a top reinforcement 12, a waist reinforcement 13 and a bottom reinforcement 14; the top reinforcement 12 is made of high-strength steel reinforcement with a tensile strength of 500 MPa or more to reduce the number of the top reinforcement 12, or made of ordinary steel reinforcement; the composite stirrup 11 is made of high-strength steel reinforcement with a tensile strength of 500 MPa or more to reduce the diameter of the composite stirrup 11, or made of ordinary steel reinforcement; and the bottom reinforcement 14 and the waist reinforcement 13 are ordinary steel reinforcement or pre-tensioned prestressed steel strands. Through the reasonable application of high-strength steel reinforcement, the reinforcement amount of the cross section can be further reduced, and the construction performance can be improved.

[0050] In some embodiments of the present application, there can be a situation that the composite beam has a flange floor 17 on one side or has no flange floor 17 on both sides; when the protection of the flange floor 17 is lacking, the hook three 31 of the double-limb closed stirrup sleeve one 2 is located at the edge of the cross section, and structural safety problems are prone to occur after the protection layer cracks and peels off. Therefore, for the composite beam with a flange floor 17 on one side as shown in the figure, the hook three 31 should be arranged on the side close to the flange floor 17; for the composite beam with no flange floor 17 on both sides as shown in the figure, the hook three 31 should be bent twice, the bending angle of the last bending segment is 90° or 45°, the last bending segment is all anchored into the prefabricated layer concrete 15, and no steel reinforcement conflict occurs with the waist reinforcement 13. Figure 5 Figure 6

[0051] ​​In some embodiments of the present application, the high-efficiency penetrating rib composite beam with the high-efficiency penetrating rib composite beam section structure is combined with various frame columns to form beam-column joints and frame structures, such as concrete-filled steel tube columns, precast concrete columns, cast-in-situ concrete columns, and steel reinforced concrete columns.

[0052] The present application further provides a construction method for the high-efficiency penetrating rib composite beam section structure, which improves the construction efficiency based on the optimized section structure. Specifically, the construction method comprises the following steps:

[0053] Step 1: Prepare the steel reinforcement materials and the mold base plate.

[0054] Ensure that all stirrups and tensile reinforcement materials meet the design requirements, including specifications, quantities, and strength grades. The surfaces of the stirrups and tensile reinforcement should be clean to avoid rust and contamination, ensuring good connection. Prepare the mold base plate for fixing the composite stirrups, ensuring its flatness and stability.

[0055] Bind the stirrup sleeves of each component of the composite stirrup 11 with the tensile reinforcement 3 to form a whole, and fix all the composite stirrups 11 of the composite beam on the mold base plate of the composite beam, ensuring accurate position and avoiding displacement during the subsequent pouring process. The binding quality of this step directly affects the structural performance.

[0056] Step 2: Set the bottom reinforcement and the waist reinforcement, and bind the steel reinforcement cage.

[0057] Set the bottom reinforcement 14 and the waist reinforcement 13 of the composite beam in place, then move the composite stirrup 11 to the corresponding position according to the design requirements, ensuring that the stirrup matches the position of the bottom reinforcement and the waist reinforcement, and bind the bottom reinforcement 14, the waist reinforcement 13, and the composite stirrup 11 to form a complete steel reinforcement cage. The setting of the bottom reinforcement 14 and the waist reinforcement 13 in this step is a key technology to ensure the structural strength and stability of the composite beam. By arranging the spacing and position reasonably, the load-carrying capacity of the structure can be improved.

[0058] Step 3: Set up the side mold of the composite beam, and pour the precast layer concrete 15.

[0059] The side mold is set up on both sides of the steel reinforcement cage, ensuring its perpendicularity and stability. The support system can be used to fix the side mold to prevent displacement or deformation of the side mold during pouring. Then, the concrete is poured evenly into the mold, ensuring the density and uniformity of the concrete. The vibrator is used to vibrate the concrete to remove air bubbles and improve the density and strength of the concrete. After pouring, the concrete is properly maintained in a wet state to prevent cracking and insufficient strength.

[0060] Step 4: After the composite beam is installed in place, set the top reinforcement 12, and then pour the composite layer concrete 16.

[0061] In some embodiments of the present application, when the bottom reinforcement 14 and the waist reinforcement 13 are made of pre-tensioned steel strands, in order to avoid interfering with the tensioning of the steel strands, the steel strands are first tensioned in step 2, and then the composite stirrup 11 is moved and the steel reinforcement cage is bound.

[0062] The above merely provides the preferred embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of the changes and replacements within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A high-efficiency reinforced composite beam cross-section structure, comprising composite stirrups (11), prefabricated layer concrete (15) and composite layer concrete (16), which is suitable for a composite beam cross-section (1) with a cross-section width ranging from 400 to 800 mm, characterized in that: when the cross-section width ranges from 400 to 500 mm, it is structure one, the composite stirrups (11) are three-limb stirrups formed by the combination of double-limb closed stirrup set one (2) and tensile reinforcement (3), the hook one (21) of the double-limb closed stirrup set one (2) is folded twice and overlaps with the vertical segment of the tensile reinforcement (3), wherein the hook three (31) of the tensile reinforcement (3) near the end of the composite layer concrete (16) is folded twice and overlaps with one vertical segment of the double-limb closed stirrup set one (2), and the hook four (32) near the end of the prefabricated layer concrete (15) is a 180° hook or is folded twice and overlaps with one vertical segment of the double-limb closed stirrup set one (2); when the cross-section width ranges from 500 to 700 mm, it is structure two, the composite stirrups (11) are four-limb stirrups formed by the combination of double-limb closed stirrup set one (2) and double-limb closed stirrup set two (4), the hook one (21) of the double-limb closed stirrup set one (2) is folded twice and overlaps with one vertical segment of the double-limb closed stirrup set two (4), and the two hook fives (41) of the double-limb closed stirrup set two (4) are each folded twice and overlaps with two vertical segments of the double-limb closed stirrup set two (4); when the cross-section width ranges from 700 to 800 mm, it is structure three, the composite stirrups (11) are five-limb stirrups formed by the combination of double-limb closed stirrup set one (2), tensile reinforcement (3) and double-limb closed stirrup set three (5), the hook one (21) of the double-limb closed stirrup set one (2) is folded twice and overlaps with one vertical segment of the double-limb closed stirrup set three (5), the hook six (51) of the double-limb closed stirrup set three (5) is folded twice and overlaps with one vertical segment of the double-limb closed stirrup set three (5), and the hook seven (52) is folded twice and overlaps with the vertical segment of the tensile reinforcement (3), wherein the hook three (31) of the tensile reinforcement (3) near the end of the composite layer concrete (16) is folded twice and overlaps with one vertical segment of the double-limb closed stirrup set three (5), and the hook four (32) near the end of the prefabricated layer concrete (15) is a 180° hook or is folded twice and overlaps with one vertical segment of the double-limb closed stirrup set three (5); in each structure, the hook two (22) of the double-limb closed stirrup set one (2) is folded, and one of the folded segments overlaps with one vertical segment of the double-limb closed stirrup set one (2); in the structure one and the structure three, the hook three (31) of the tensile reinforcement (3) is located in the composite layer concrete (16) or in the composite layer concrete (16) and part of the prefabricated layer concrete (15); and the hook four (32) is located in the prefabricated layer concrete (15); the last folded segment of each of the hook one (21), the hook two (22), the hook three (31), the hook four (32), the hook five (41), the hook six (51) and the hook seven (52) is not less than 8 times the diameter of the corresponding stirrup or tensile reinforcement (3). ​ ​ ​ ​ 2. The high-performance perforated laminated beam cross-section configuration according to claim 1, characterized in that, ​ 3. The high-performance perforated laminated beam cross-section configuration according to claim 1, characterized by the fact that, ​ 4. The high-performance perforated laminated beam cross-section configuration according to claim 1, characterized by, The two hooks five (41) of the double-limb closed stirrup sleeve two (4) are located in the prefabricated layer concrete (15); the hook six (51) and the hook seven (52) of the double-limb closed stirrup sleeve three (5) are located in the prefabricated layer concrete (15), so as to reduce the influence of the hooks on the top reinforcement (12).

5. The high-performance perforated laminated beam cross-section configuration of claim 1, wherein, In each structure, the hook two (22) of the double-limb closed stirrup sleeve one (2) is located in the composite layer concrete (16), or in the composite layer concrete (16) and part of the prefabricated layer concrete (15); the hook two (22) of the double-limb closed stirrup sleeve one (2) is located in the composite layer concrete (16) after being bent once, or in the composite layer concrete (16) and part of the prefabricated layer concrete (15), or is anchored in the prefabricated layer concrete (15) after being bent twice.

6. The high-performance perforated laminated beam cross-section configuration according to any one of claims 1 to 5, characterized in that, The high-efficiency reinforced composite beam sectional structure further comprises the top reinforcement (12), the waist reinforcement (13) and the bottom reinforcement (14), the top reinforcement (12) is made of high-strength steel with a tensile strength of 500 MPa or more so as to reduce the number of the top reinforcement (12), or is made of ordinary steel; the composite stirrup (11) is made of high-strength steel with a tensile strength of 500 MPa or more so as to reduce the diameter of the composite stirrup (11), or is made of ordinary steel, and the bottom reinforcement (14) and the waist reinforcement (13) are ordinary steel or pre-tensioned prestressed steel strands.

7. The high-performance perforated laminated beam cross-section configuration according to claim 6, characterized by When the flange of the composite beam is not provided with a flange floor slab (17), the hook two (22) of the double-limb closed stirrup sleeve one (2) is bent twice, the bending angle of the last bending segment is 90° or 45°, and the last bending segment is entirely anchored in the prefabricated layer concrete (15) and does not collide with the waist reinforcement (13).

8. The high-performance perforated laminated beam cross-section construction according to claim 1, characterized by the fact that, The high-efficiency reinforced composite beam with the high-efficiency reinforced composite beam sectional structure is combined with various frame columns to form a beam-column joint and a frame structure.

9. The construction method of the high-performance perforated laminated beam according to any one of claims 1 to 8, characterized in that, The method comprises the following steps: Step 1, the stirrup sleeve of each component of the composite stirrup (11) is fixed and bound with the tensile reinforcement (3) to form an integral whole, and all the composite stirrups (11) of the composite beam are fixed on the mold bottom plate of the composite beam; Step 2, the bottom reinforcement (14) and the waist reinforcement (13) of the composite beam are arranged, the composite stirrup (11) is moved to the corresponding position according to the design requirements, and the steel reinforcement cage is bound; when the bottom reinforcement (14) and the waist reinforcement (13) are pre-tensioned prestressed steel strands, the steel strands are tensioned, and then the composite stirrup (11) is moved and the steel reinforcement cage is bound; Step 3, the side mold of the composite beam is supported, and the prefabricated layer concrete (15) is poured; Step 4, after the composite beam is installed in place, the top reinforcement (12) is arranged, and then the composite layer concrete (16) is poured.

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