Assembly type double-column connection node for MIC

Abstract

The utility model discloses an MIC assembly type double-column connecting node which comprises module columns, module beams, vertical module beams, laminated slabs, module column longitudinal bars, module beam support negative bars, module column abutted seams, concrete cast-in-place layers and composite steel plate hoops, and relates to the technical field of building structure design and construction. According to the MIC assembly type double-column connecting joint, hoisting can be conducted on site, the site workload is reduced, beam plate surface ribs are bound on site, then a concrete cast-in-place layer is poured, the structural integrity is enhanced, a factory is combined with the site, the structural safety is met, and meanwhile the construction period is shortened; by arranging the composite steel plate hoop, the problem that the strength of stirrups in the joint is insufficient or the stirrups of the construction joint cannot be placed is solved, and the MIC double-column joint is simple in structure and clear in stress.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of building structure design and construction technology, concretely to a MIC assembly type double column connecting joint. BACKGROUND

[0002] With the development of building industrialization in China, the assembly type building brings the assembly type building 4.0 era, and a large number of modular buildings have appeared in the industry, that is, MIC (Modular Integrated Construction), translated as "assembled synthetic building", which is defined as "modular integrated building". It refers to the fact that the building is divided into a three-dimensional space unit, and the decoration, water heating, mechanical and electrical processes of each space unit are completed in the factory at one time, and the construction site only needs to assemble each unit like "building blocks" to complete the construction of the whole project.

[0003] The MIC building first needs to combine the building function, stress system, transportation and lifting capacity, and split the structural members in the original main structure, that is, split a beam into two beams with smaller cross sections, and split a column into two columns with smaller cross sections, so as to realize the splitting of the structure. Due to the need for earthquake resistance, the site construction needs to connect the MIC modules into a whole, and the MIC modules are spliced with adjacent MIC modules in the horizontal direction, and the module column forms a double-spliced column, and the connecting joint of the double-spliced column is one of the most important joints of the MIC structure system.

[0004] The traditional such joint mostly uses stirrups to strengthen the joint force, when the diameter of the stirrup needs to be too large, the processing is difficult, and the thickness of the protective layer is too large, if the traditional multi-limb hoop is used, the height occupied by the upper and lower stacking is too large, and in the relatively thin cast-in-place layer, it cannot be placed, therefore, the utility model provides a MIC assembly type double column connecting joint to solve the above-mentioned problems. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a MIC assembly type double column connecting joint, which solves the problems mentioned in the above background art.

[0006] To achieve the above purpose, the utility model is implemented by the following technical scheme: a MIC assembly type double column connecting joint, comprising a module column, a module beam, a vertical direction module beam, a composite board, a module column longitudinal reinforcement, a module beam support negative reinforcement, a module column splicing joint, a concrete cast-in-place layer and a composite steel plate hoop, the module column splicing joint is connected at the top of the column through the composite steel plate hoop, the module beam support negative reinforcement and the concrete cast-in-place layer, and the module column is provided with two.

[0007] Preferably, the composite steel plate hoop comprises a steel plate outer hoop, a short inward hoop plate and a long inward hoop plate, the single limb steel plates of the steel plate outer hoop and the long inward hoop plate are full-length, the short inward hoop plate is broken when encountering the steel plate outer hoop and the long inward hoop plate, the sizes of each single hoop plate in the height direction are the same, and the single hoop plates are welded to form a closed and integral composite steel plate hoop in the same height range.

[0008] Preferably, the steel plate outer hoop is sleeved outside two module column longitudinal reinforcements, the number of the long inward hoop plates is not less than one, and the short inward hoop plate is arranged inside the module column longitudinal reinforcements on both sides of the module column joint.

[0009] Preferably, the two module columns are arranged in left-right symmetry.

[0010] Preferably, the two module beams are arranged in left-right symmetry.

[0011] Preferably, the two composite slabs are arranged in left-right symmetry.

[0012] Preferably, the module column longitudinal reinforcements are arranged in the module columns, and four module column longitudinal reinforcements are arranged in each module column.

[0013] Beneficial effects

[0014] The utility model provides a kind of for MIC assembly type double-column connecting joint.Compared with prior art, it has the following beneficial effects:

[0015] The MIC assembly type double-column connecting joint is cooperated by prefabricated part and cast-in-place part, the module beam, module column, composite slab and corresponding bottom reinforcement, waist reinforcement and opening hoop reinforcement in the node are prefabricated in factory, and box or partially open box module is formed by combination. Hoisting can be carried out on site, reducing the amount of work on site, and beam and slab reinforcement is bound on site, and then cast-in-place concrete layer is poured, to enhance the overall structure, the combination of factory and site meets the safety of structure while shortening the construction period. By setting composite steel plate hoop, the problem of insufficient hoop reinforcement strength in node or unable to place hoop reinforcement at construction joint is solved, so that MIC double-column node structure is simple and stress is clear. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a node area on-site binding reinforcement and composite steel plate hoop schematic view of the utility model;

[0017] Figure 2 It is a node schematic view after cast-in-place concrete pouring of the utility model;

[0018] Figure 3 It is a composite steel plate hoop end partial schematic view of the utility model;

[0019] Figure 4 The schematic diagram of the node after the upper MIC module is installed.

[0020] In the figure: 1, module column; 2 module beam; 3 vertical direction module beam; 4, superimposed plate; 5, module column longitudinal reinforcement; 6, module beam support negative reinforcement; 7, module column joint; 8, concrete cast-in-situ layer; 9 composite steel plate hoop. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] Please refer to Figures 1-4 The utility model provides a kind of technical solutions: a MIC fabricated double-column connection node, including module column 1, module beam 2, vertical direction module beam 3, superimposed plate 4, module column longitudinal reinforcement 5, module beam support negative reinforcement 6, module column joint 7, concrete cast-in-situ layer 8, composite steel plate hoop 9.It is prefabricated in factory modularization to module column 1, module beam 2, vertical direction module beam 3, superimposed plate 4, module column longitudinal reinforcement 5, then transport to site assembly, form joint between adjacent MIC module, module beam support negative reinforcement 6, concrete cast-in-situ layer 8, composite steel plate hoop 9 are constructed in situ, module beam support negative reinforcement 6 and composite steel plate hoop 9 pass through module column joint 7, hide in concrete cast-in-situ layer 8.By module beam support negative reinforcement 6 and composite steel plate hoop 9 bear the tensile force at double-column node, strengthen the integrity of structure, guarantee structural deformation coordination.Site construction first hoists MIC fabricated module, secondly binds module beam support negative reinforcement 6 and composite steel plate hoop 9, pours concrete cast-in-situ layer 8 again, finally installs upper MIC module, so on and so forth to repeat construction upwards.MIC module is reinforced concrete prefabricated component, two MIC modules exist joint in site installation, module column joint 7 is connected at column top by composite steel plate hoop 9, module beam support negative reinforcement (6) and concrete cast-in-situ layer 8, the module beam support negative reinforcement 6 and composite steel plate hoop 9 are bound, fixed after prefabricated component is installed in place in situ.

[0023] The composite steel plate hoop 9 is composed of a steel plate outer hoop 91, a short inward hoop plate 92 and a long inward hoop plate 93. The hoop plate system of the composite steel plate hoop 9 is cut and welded from a steel plate, the cross section of a single hoop plate is rectangular, the vertical direction of the cross section is the height of the hoop plate, and the horizontal direction of the cross section is the thickness of the steel plate. In order to ensure that the thickness of the protective layer of the hoop plate meets the requirements and does not affect the effective arm of the module column longitudinal reinforcement 5, the thickness of the outer hoop 91 is not more than the diameter of the traditional hoop of the module column, and the thickness of the long inward hoop plate 93 can be adjusted according to the needs.

[0024] The single limb steel plate of the steel plate outer hoop 91 and the long inward hoop plate 93 is full-length, the short inward hoop plate 92 is broken when encountering the steel plate outer hoop 91 and the long inward hoop plate 93, the size of each single hoop plate in the height direction is the same, and in the same height range, they are welded to form a closed and integral composite steel plate hoop 9, thereby avoiding the problems of construction difficulty caused by the stacking of traditional multi-limb hoop reinforcement. The steel plate outer hoop 91 is sleeved outside the two module column longitudinal reinforcements 5, which also provides a transverse restraint effect on the concrete in the joint area. The number of the long inward hoop plate 93 is not less than one, and more than one can also be provided according to the stress needs. The short inward hoop plate 92 is arranged inside the module column longitudinal reinforcement 5 on both sides of the module column joint 7, so as to enclose the module column longitudinal reinforcement 5 on both sides of the module column joint 7, thereby providing a hoop restraint effect for the concrete at the joint.

[0025] The hoop plate system constituting the composite steel plate hoop 9 is cut and welded from a steel plate, the cross section of a single hoop plate is rectangular, the vertical direction of the cross section is the height of the hoop plate, and the horizontal direction of the cross section is the thickness of the steel plate. In order to ensure that the thickness of the protective layer of the hoop plate meets the requirements and does not affect the effective arm of the module column longitudinal reinforcement 5, the thickness of the outer hoop 91 is not more than the diameter of the traditional hoop of the module column, and the thickness of the long inward hoop plate 93 can be adjusted according to the needs.

[0026] The area of the module beam support negative reinforcement 6 passing through the module column joint 7 is determined by the calculated area of the support beam on both sides, and the total cross-sectional area of the composite steel plate hoop 9 passing through the module column joint 7 is determined by calculation after comprehensively considering the area of the module beam support negative reinforcement 6 passing through the module column joint 7.

[0027] Meanwhile, the contents not described in detail in the specification all belong to the prior art known to those skilled in the art.

[0028] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0029] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A MIC fabricated double column connection node, characterized in that: The utility model provides a kind of prefabricated reinforced concrete composite wall, including module column (1), module beam (2), vertical direction module beam (3), superimposed board (4), module column longitudinal reinforcement (5), module beam support negative reinforcement (6), module column joint (7), concrete cast-in-place layer (8), composite steel plate hoop (9), the module column joint (7) is connected at column top by composite steel plate hoop (9), module beam support negative reinforcement (6) and concrete cast-in-place layer (8), the module column (1) is provided with two.

2. The MIC fabricated double column connection node of claim 1, wherein: The composite steel plate hoop (9) includes steel plate outer hoop (91), short inward hoop plate (92) and long inward hoop plate (93), the single limb steel plate of steel plate outer hoop (91) and long inward hoop plate (93) is full-length, the short inward hoop plate (92) is broken when meeting steel plate outer hoop (91) and long inward hoop plate (93), each single hoop plate is same in size along height direction, in the same height range, mutually welded to form closed, integral composite steel plate hoop (9).

3. The MIC fabricated dual column connection node of claim 2, wherein: The steel plate outer hoop (91) is sleeved outside two module column longitudinal reinforcements (5), the number of long inward hoop plate (93) is not less than one, and the short inward hoop plate (92) is arranged inside the module column longitudinal reinforcement (5) on both sides of the module column joint (7).

4. The MIC fabricated dual column connection node of claim 1, wherein: The two module columns (1) are symmetrically arranged.

5. The MIC fabricated dual column connection node of claim 1, wherein: The module beam (2) is provided with two, and the two module beams (2) are symmetrically arranged.

6. The MIC fabricated dual column connection node of claim 1, wherein: The superimposed board (4) is also provided with two, and the two superimposed boards (4) are symmetrically arranged.

7. The MIC fabricated dual column connection node of claim 1, wherein: The module column longitudinal reinforcement (5) is arranged in the module column (1), and four module column longitudinal reinforcements (5) are arranged in each module column (1).

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