Steel bar structure of fabricated building cast-in-place wall

Abstract

The utility model discloses a steel bar structure of an assembly type building cast-in-place wall body, which comprises cast-in-place wall body longitudinal bars, the number of the cast-in-place wall body longitudinal bars is even, the cast-in-place wall body longitudinal bars are symmetrically arranged in two parallel planes, and the number of the cast-in-place wall body longitudinal bars in the same plane is larger than or equal to two; the cast-in-place wall body stirrups surround the outer edges of the cast-in-place wall body longitudinal bars, and a closed rectangle is formed on the outer edges of the cast-in-place wall body longitudinal bars and used for keeping the structure of the cast-in-place wall body longitudinal bars; the prefabricated wall horizontal bars are arranged in parallel and comprise first front end structures and first rear end structures, the first rear end structures are located on the outer sides of the cast-in-place stirrups, and the tail ends of the first rear end structures are reversely bent along the cast-in-place wall longitudinal bars and extend into the cast-in-place wall stirrups; and the pair of prefabricated beam longitudinal bars arranged in parallel comprises a second front end structure and a second rear end structure, and the second rear end structure is located on the inner side of the cast-in-place wall longitudinal bars.

Description

Technical Field

[0001] The utility model relates to the technical field of assembled buildings, in particular to a steel bar structure of a cast-in-place wall of an assembled building. Background Art

[0002] Prefabricated and assembled buildings are a new type of construction model that mainly utilizes an industrialized model for construction. The use of prefabricated and assembled buildings can ensure the performance of building construction through its excellent structural characteristics.

[0003] Prefabricated buildings are assembled from prefabricated components to form an integrated prefabricated building. At present, my country's prefabricated building industry has not fully considered the connection of different components and the arrangement of steel bars. There are many connected cast-in-place nodes during the construction process. Due to the inconsistency of the connection form, steel bar arrangement, and steel bar protection layer of each component, there are serious conflicts between the steel bars at the intersection of the cast-in-place nodes. For example, the protective layer of the cast-in-place hidden column stirrups at both ends of the wall in the design drawing is large; the horizontal bars of the prefabricated wall cannot be arranged on the outside of the cast-in-place hidden column according to the specification requirements; there is a conflict between the arrangement of the horizontal bars of the prefabricated wall and the cast-in-place hidden column steel bars. Therefore, when constructing the nodes between the cast-in-place hidden column and the prefabricated wall steel bars, it is necessary to increase the manual bending of the prefabricated wall horizontal bars and tie them with the cast-in-place hidden column steel bars (the horizontal bars of the wall are bent to the outside of the column bars). Or the inner surface of the cast-in-place hidden column longitudinal bars is small from the concrete edge; according to the steel bar arrangement rules, the longitudinal bars of the prefabricated beam conflict with the longitudinal bars of the hidden column, and the steel bar installation and binding cannot be met. Therefore, when constructing the nodes between the cast-in-place hidden column and the prefabricated beam steel bars, the longitudinal bars of the prefabricated beam need to be manually adjusted. This leads to an increase in the workload and difficulty of on-site construction, and does not meet the design concept of prefabricated buildings, which are fast, energy-saving, and labor-saving.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0005] The utility model aims to provide a steel reinforcement structure of a cast-in-place wall of an assembled building which can effectively avoid the conflict between the horizontal reinforcement of the prefabricated wall and the longitudinal reinforcement of the prefabricated beam and the main reinforcement of the cast-in-place hidden column.

[0006] To achieve the above-mentioned purpose, the utility model provides a steel bar structure of a cast-in-place wall of an assembled building, comprising: cast-in-place wall longitudinal bars, the number of which is an even number and symmetrically arranged in two parallel planes, and the number of the cast-in-place wall longitudinal bars in the same plane is greater than or equal to two; cast-in-place wall stirrups, the cast-in-place wall stirrups are encircled around the outer edges of the cast-in-place wall longitudinal bars, and a closed rectangle is formed on the outer edges of the cast-in-place wall longitudinal bars to maintain the structure of the cast-in-place wall longitudinal bars; a pair of parallel prefabricated wall horizontal bars, comprising a first front end structure and a first rear end structure, the first rear end structure is located on the outside of the cast-in-place wall stirrups, and the end of the first rear end structure is bent in the opposite direction along the cast-in-place wall longitudinal bars and extends into the inside of the cast-in-place wall stirrups; a pair of parallel prefabricated beam longitudinal bars, comprising a second front end structure and a second rear end structure, the second rear end structure is located on the inside of the cast-in-place wall longitudinal bars.

[0007] In one or more embodiments, the first front end structure is located in the prefabricated wall, the end of the first front end structure is bent outward and connected to the first rear end structure, the first rear end structures are parallel, and the spacing between the first rear end structures is greater than the spacing between the first front end structures.

[0008] In one or more embodiments, the second front end structure is disposed in a prefabricated beam, the end of the second front end structure is bent inward and connected to the second rear end structure, the second rear end structures are parallel, and the spacing of the second rear end structures is smaller than the spacing of the second front end structures.

[0009] In one or more embodiments, the diameter of the precast beam longitudinal reinforcement is larger than the diameter of the precast wall horizontal reinforcement.

[0010] In one or more embodiments, the bending ratio of the prefabricated wall horizontal reinforcement and the prefabricated beam longitudinal reinforcement is 1:6.

[0011] In one or more embodiments, two of the precast beam longitudinal bars are fixed by a plurality of stirrups perpendicular to the precast beam longitudinal bars.

[0012] In one or more embodiments, a plurality of longitudinal sleeve main bars are evenly spaced on one side of the prefabricated wall horizontal bars, and a plurality of total longitudinal structural bars are evenly spaced on the other side. The spacing between the longitudinal sleeve main bars and the total longitudinal structural bars is equal, and the two horizontal bars face opposite directions.

[0013] In one or more embodiments, two of the prefabricated wall horizontal reinforcements are staggered, the longitudinal sleeve main reinforcement of one prefabricated wall horizontal reinforcement and the total longitudinal structural reinforcement of another prefabricated wall horizontal reinforcement have the same horizontal position, and a wall hook is provided between a pair of the longitudinal sleeve main reinforcements and the total longitudinal structural reinforcement.

[0014] In one or more embodiments, the wall hooks are arranged at intervals between the prefabricated wall horizontal ribs.

[0015] The utility model provides a steel bar structure for cast-in-place walls of prefabricated buildings. When the prefabricated wall is processed, the horizontal bars of the prefabricated wall are bent toward the outside of the wall at a ratio of 1:6 at both ends of the prefabricated wall (in the prefabricated section). After bending, the protective layer of the horizontal bars is the same as the protective layer of the cast-in-place hidden column stirrups, which can effectively avoid the conflict between the horizontal bars of the prefabricated wall and the main bars of the cast-in-place hidden column. The main bars and waist bars of the beam are bent toward the inside of the beam at a ratio of 1:6 at the two sections of the prefabricated beam (in the prefabricated section), ensuring that the thickness of the protective layer of the main bars and waist bars after leaving the prefabricated section is ≥ the protective layer of the cast-in-place wall + the diameter of the cast-in-place wall stirrups + the diameter of the cast-in-place wall longitudinal bars, which can effectively avoid the conflict between the main bars and waist bars of the beam and the main bars of the cast-in-place wall. While ensuring the rigidity and bearing capacity of the building components, the ductility is also expanded to a certain extent, solving the construction technology of the cast-in-place parts of the prefabricated structure, thereby reducing the technical problem of high-speed implementation of prefabricated and assembled buildings due to the problem of connecting nodes of the cast-in-place parts, improving the construction speed, and avoiding the extra labor caused by the conflict of steel bars. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of a steel reinforcement structure of a cast-in-place wall of an assembled building provided in an embodiment of the utility model.

[0017] Figure 2 It is a schematic diagram of a prefabricated wall portion of a steel structure of a cast-in-place wall of an assembled building provided in an embodiment of the utility model.

[0018] Figure 3 It is a schematic diagram of the prefabricated beam portion of the steel structure of a cast-in-place wall of an assembled building provided in an embodiment of the utility model.

[0019] Description of main reference numerals:

[0020] 1-cast-in-place wall longitudinal reinforcement, 2-cast-in-place wall stirrups, 3-precast wall horizontal reinforcement, 31-first front end structure, 32-first rear end structure, 33-longitudinal sleeve main reinforcement, 34-total longitudinal structural reinforcement, 35-wall hook, 4-precast beam longitudinal reinforcement, 41-second front end structure, 42-second rear end structure, 43-precast beam stirrups, 5-precast wall, 6-precast beam. DETAILED DESCRIPTION

[0021] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation modes.

[0022] Unless explicitly stated otherwise, throughout the specification and claims, the term “comprise” or variations such as “include” or “comprising”, etc., will be understood to include the stated elements or components but not to exclude other elements or components.

[0023] A steel structure for cast-in-place walls of an assembled building, such as Figures 1 to 3 As shown, it includes: cast-in-place wall longitudinal reinforcement 1, the number of which is an even number and is symmetrically arranged in two parallel planes, and the number of the cast-in-place wall longitudinal reinforcement 1 in the same plane is greater than or equal to two; cast-in-place wall stirrups 2, the cast-in-place wall stirrups 2 are wrapped around the outer edge of the cast-in-place wall longitudinal reinforcement 1, and form a closed rectangle on the outer edge of the cast-in-place wall longitudinal reinforcement 1, for maintaining the structure of the cast-in-place wall longitudinal reinforcement 1; a pair of parallel prefabricated wall horizontal reinforcements 3, including a first front end structure 31 and a first rear end structure 32, the first rear end structure 32 is located on the outside of the cast-in-place wall stirrups 2, and the end of the first rear end structure 32 is bent in the opposite direction along the cast-in-place wall longitudinal reinforcement 1 and extends into the inside of the cast-in-place wall stirrups 2; a pair of parallel prefabricated beam longitudinal reinforcements 4, including 41 and a second rear end structure 42, the second rear end structure 42 is located on the inside of the cast-in-place wall longitudinal reinforcement 1.

[0024] Specifically, as a preferred embodiment, the number of the cast-in-place wall longitudinal reinforcements 1 is six, which are divided into two groups and symmetrically arranged in two parallel planes to form a rectangular structure. The first rear end structure 32 of the prefabricated wall horizontal reinforcement 3 is located outside the cast-in-place wall stirrups, that is, outside the hidden column, which meets the requirements of building specifications. The second rear end structure 42 of the prefabricated beam longitudinal reinforcement 4 is located inside the cast-in-place wall stirrups, that is, inside the hidden column, which meets the requirements of building specifications.

[0025] As an optional embodiment, the first front end structure 31 is located in the prefabricated wall 5, the end of the first front end structure 31 is bent outward and connected to the first rear end structure 32, the first rear end structure 32 is parallel, and the spacing of the first rear end structure 32 is greater than the spacing of the first front end structure 31.

[0026] Specifically, the two prefabricated wall horizontal bars 3 are parallel to each other, and the ends are bent in two sections, the first section is bent outward, and the second section is bent inward, so that the non-parallel horizontal bars are parallel again after the first section is bent. The structure between the first section bend and the first section to the second section bend is the first front structure 31, which is located inside the prefabricated wall 5, and the structure after the second section bend is the first rear structure 32, which is located outside the prefabricated wall 5, so that the spacing between the two prefabricated wall horizontal bars 3 at the first rear structure 32 is greater than the spacing between the two prefabricated wall horizontal bars 3 at the first front structure, so that the prefabricated wall horizontal bars 3 are bent outward to avoid hidden columns while maintaining the thickness of the protective layer, which meets the construction specifications.

[0027] As an optional embodiment, the second front end structure 41 is arranged in the prefabricated beam 6, the end of the second front end structure 41 is bent inward and connected to the second rear end structure 42, the second rear end structure 42 is parallel, and the spacing of the second rear end structure 42 is smaller than the spacing of the second front end structure 41.

[0028] Specifically, the two precast beam longitudinal bars 4 are parallel to each other, and the ends are bent in two sections, the first section is bent inward, and the second section is bent outward, so that the longitudinal bars that are not parallel after the first section bend become parallel again. The structure between the first section bend and the first section to the second section bend is the second front end structure 41, which is located inside the precast beam 6, and the structure after the second section bend is the second rear end structure 42, which is located outside the precast beam 6. Under the premise of maintaining the thickness of the protective layer, the precast beam longitudinal bars 4 are bent inward to avoid the hidden column, which meets the construction specifications.

[0029] As an optional implementation, the diameter of the prefabricated beam longitudinal reinforcement 4 is larger than the prefabricated wall horizontal reinforcement 3 .

[0030] Specifically, since the prefabricated beam longitudinal reinforcement 4 has a load-bearing function, it needs greater strength, so the diameter of the prefabricated beam longitudinal reinforcement 4 is greater than the prefabricated wall horizontal reinforcement 3.

[0031] As an optional implementation, the bending ratio of the prefabricated wall horizontal reinforcement 3 and the prefabricated beam longitudinal reinforcement 4 is 1:6.

[0032] Specifically, the bottom longitudinal reinforcement of the precast beam 6 and the horizontal reinforcement of the precast wall 3 are bent horizontally at a ratio of 1:6 to meet the stress requirements of the specification.

[0033] As an optional implementation, the two precast beam longitudinal reinforcements 4 are fixed by a plurality of precast beam 6 stirrups 43 that are perpendicular to the precast beam longitudinal reinforcements 4 .

[0034] Specifically, the plurality of precast beam 6 stirrups 43 perpendicular to the two precast beam longitudinal reinforcements 4 exert only a longitudinal tensile force on the precast beam longitudinal reinforcement 4 and have no transverse component force, thereby achieving the best effect of maintaining the structure of the precast beam longitudinal reinforcement 4 and preventing the precast beam longitudinal reinforcement 4 from producing transverse displacement.

[0035] As an optional embodiment, a plurality of longitudinal sleeve main reinforcements 33 are evenly spaced on one side of the prefabricated wall horizontal reinforcement 3, and a plurality of total longitudinal structural reinforcements 34 are evenly spaced on the other side. The spacing between the longitudinal sleeve main reinforcements 33 and the total longitudinal structural reinforcements 34 is equal, and the two horizontal reinforcements are in opposite directions.

[0036] Specifically, the opposite orientation means that the longitudinal sleeve main reinforcement 33 of the two prefabricated wall horizontal reinforcements 3 are located on opposite sides, and the total longitudinal structural reinforcement 34 of the two prefabricated wall horizontal reinforcements 3 are also located on opposite sides. As a preferred embodiment, the longitudinal sleeve main reinforcement 33 is located on the inner side of the prefabricated wall horizontal reinforcement 3, and the total longitudinal structural reinforcement 34 is located on the outer side of the prefabricated wall horizontal reinforcement 3. The inner side refers to the position where the two prefabricated wall horizontal reinforcements 3 are sandwiched, and the outer side refers to the position where the two prefabricated wall horizontal reinforcements 3 are sandwiched.

[0037] As an optional embodiment, the two prefabricated wall horizontal reinforcements 3 are staggered, the longitudinal sleeve main reinforcement 33 of one prefabricated wall horizontal reinforcement 3 is at the same horizontal position as the total longitudinal structural reinforcement 34 of another prefabricated wall horizontal reinforcement 3, and a wall hook 35 is provided between a pair of the longitudinal sleeve main reinforcements 33 and the total longitudinal structural reinforcement 34.

[0038] Specifically, the positions of the longitudinal sleeve main reinforcement 33 of one prefabricated wall horizontal reinforcement 3 and the total longitudinal structural reinforcement 34 of another prefabricated wall horizontal reinforcement 3 overlap after translation, so that when setting the wall hook, the wall hook is perpendicular to the prefabricated wall horizontal reinforcement 3, so that the wall hook has only a longitudinal pulling force on the prefabricated wall horizontal reinforcement 3, and does not cause lateral displacement. A pair of the longitudinal sleeve main reinforcement 33 and the total longitudinal structural reinforcement 34 refers to a longitudinal sleeve main reinforcement 33 and a total longitudinal structural reinforcement 34 with the same horizontal position on two prefabricated wall horizontal reinforcements 3.

[0039] As an optional implementation, the wall hooks 35 are arranged at intervals between the prefabricated wall horizontal ribs 3 .

[0040] Specifically, the interval arrangement means that the wall hook 35 is not arranged between each pair of the longitudinal sleeve main reinforcement 33 and the total longitudinal structural reinforcement 34. As a preferred embodiment, a pair of the longitudinal sleeve main reinforcement 33 and the total longitudinal structural reinforcement 34 is arranged between two adjacent wall hooks 35. The interval arrangement can reduce the use of wall hooks while ensuring the structural strength, which is convenient for saving raw materials.

[0041] The foregoing description of specific exemplary embodiments of the utility model is for the purpose of illustration and illustration. These descriptions are not intended to limit the utility model to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the utility model and various different options and changes. The scope of the utility model is intended to be defined by the claims and their equivalents.

Claims

1. A steel bar structure for cast-in-place walls of an assembled building, characterized in that: include: Cast-in-place wall longitudinal reinforcement, the number of which is an even number and is symmetrically arranged in two parallel planes, and the number of which in the same plane is greater than or equal to two; Cast-in-place wall stirrups, the cast-in-place wall stirrups are wrapped around the outer edge of the cast-in-place wall longitudinal reinforcements and form a closed rectangle at the outer edge of the cast-in-place wall longitudinal reinforcements to maintain the structure of the cast-in-place wall longitudinal reinforcements; A pair of parallel prefabricated wall horizontal reinforcements, comprising a first front end structure and a first rear end structure, wherein the first rear end structure is located outside the cast-in-place wall stirrups, and the end of the first rear end structure is reversely bent along the cast-in-place wall longitudinal reinforcement and extends into the cast-in-place wall stirrups; A pair of parallel precast beam longitudinal reinforcements comprises a second front end structure and a second rear end structure, wherein the second rear end structure is located inside the cast-in-place wall longitudinal reinforcements.

2. The steel bar structure of the cast-in-place wall of an assembled building as claimed in claim 1, characterized in that: The first front end structure is located in the prefabricated wall, the end of the first front end structure is bent outward and connected to the first rear end structure, the first rear end structures are parallel, and the spacing between the first rear end structures is greater than the spacing between the first front end structures.

3. The steel bar structure of the cast-in-place wall of an assembled building as claimed in claim 1, characterized in that: The second front end structure is arranged in the prefabricated beam, the end of the second front end structure is bent inwardly and connected to the second rear end structure, the second rear end structures are parallel, and the spacing of the second rear end structures is smaller than the spacing of the second front end structures.

4. The steel bar structure of the cast-in-place wall of an assembled building according to claim 1, characterized in that: The diameter of the prefabricated beam longitudinal reinforcement is greater than the diameter of the prefabricated wall horizontal reinforcement.

5. The steel bar structure of the cast-in-place wall of an assembled building as claimed in claim 1, characterized in that: The bending ratio of the prefabricated wall horizontal reinforcement and the prefabricated beam longitudinal reinforcement is 1:

6.

6. The steel bar structure of the cast-in-place wall of an assembled building as claimed in claim 1, characterized in that: The two prefabricated beam longitudinal reinforcements are fixed by a plurality of stirrups perpendicular to the prefabricated beam longitudinal reinforcements.

7. The steel bar structure of the cast-in-place wall of an assembled building as claimed in claim 1, characterized in that: A plurality of longitudinal sleeve main bars are evenly spaced on one side of the prefabricated wall horizontal bars, and a plurality of total longitudinal structural bars are evenly spaced on the other side. The spacing between the longitudinal sleeve main bars and the total longitudinal structural bars is equal, and the two horizontal bars face opposite directions.

8. The steel bar structure of the cast-in-place wall of an assembled building as claimed in claim 7, characterized in that: The two prefabricated wall horizontal bars are staggered, the longitudinal sleeve main bars of one prefabricated wall horizontal bar and the total longitudinal structural bars of another prefabricated wall horizontal bar have the same horizontal position, and a wall hook is provided between a pair of the longitudinal sleeve main bars and the total longitudinal structural bars.

9. The steel bar structure of the cast-in-place wall of an assembled building as claimed in claim 8, characterized in that: The wall hooks are arranged at intervals between the horizontal reinforcements of the prefabricated wall.

Images