CN210767266U

CN210767266U - Prefabricated assembled type stiffening concrete column member node connecting structure

Info

Publication number: CN210767266U
Application number: CN201921343443.5U
Authority: CN
Inventors: 魏建军; 徐小明; 沈程; 徐苗苗
Original assignee: Changzhou Vocational Institute of Engineering
Current assignee: Changzhou Vocational Institute of Engineering
Priority date: 2019-08-19
Filing date: 2019-08-19
Publication date: 2020-06-16
Anticipated expiration: 2029-08-19

Abstract

The utility model discloses a prefabricated assembled strength nature concrete column component nodal connection structure, prefabricated assembled strength nature concrete column component includes prefabricated strength nature concrete column, the centre of prefabricated strength nature concrete column is provided with the cross shaped steel on the edge of a wing, and four corners of cross shaped steel are equipped with the hole that link up from top to bottom respectively, the peripheral a week of prefabricated assembled strength nature concrete column component is equipped with and bears actual load and the vertical atress reinforcing bar of evenly arranging according to the column unit, and the vertical atress reinforcing bar that is equipped with along the peripheral a week of prefabricated strength nature concrete column is at column terminal surface department joint bar welding point. The utility model can realize factory production and on-site assembly construction; the self weight of the column member is reduced, and meanwhile, the pipeline is conveniently laid in the prefabricated column; the matched assembling steel templates are designed for concrete pouring of the column member nodes, and the assembling and disassembling are convenient.

Description

Prefabricated assembled type stiffening concrete column member node connecting structure

Technical Field

The utility model relates to a concrete column component node connection structure, in particular to connection structure between assembled strength nature concrete component especially adjacent component node.

Background

The existing building structure usually adopts a structural form of a steel structure or a reinforced concrete structure, the steel structure has the defects of large steel consumption, poor fire resistance, high maintenance cost and the like, and for multi-story high-rise large-span buildings, the problem of overall stability of the structure is obvious because the section of a steel structural member is slightly smaller than that of a reinforced concrete member. The construction workload of the reinforced concrete structure is large, and particularly for multi-story and high-rise structures, the section size of a structural member is large, so that the structure is large in self weight, and the requirement on the bearing capacity of a foundation is high. The steel-concrete (stiff concrete) structure has the advantages of high steel structure bearing capacity, strong anti-seismic performance and the like, good concrete structure durability and the like, and meanwhile, the structure also has good fireproof performance. Along with the development of building industrialization, the reinforced concrete structure adopts precast concrete components to carry out the prefabricated construction, when improving construction speed, has avoided traditional concrete component cast in situ construction because the vibration is not closely knit, receive factors such as external climate influence and the concrete quality problem that causes. However, the existing steel-concrete (stiff concrete) structural member still adopts the traditional concrete cast-in-place, so that on one hand, the construction speed is slow, the trend of building industrialization development is not facilitated, and on the other hand, the quality of the on-site concrete structural member is difficult to control and guarantee.

Based on the reasons, in order to match with the development of building industrialization, the prefabricated assembled stiff concrete component is adopted, so that the factory production and the field assembly construction of the stiff concrete component can be realized, the quality of the stiff concrete component is ensured, the construction speed of a field structure is accelerated, and the trend of building industrialization development is met. However, few researchers are involved in the connection research of the assembled stiffened concrete members, particularly the connection between the nodes of the adjacent members, so that the problem to be solved is urgent.

SUMMERY OF THE UTILITY MODEL

When the superiority of make full use of steel-concrete (strength nature concrete) structure, for the quality of control and assurance concrete component, improve the construction speed of steel-concrete (strength nature concrete) structure, the utility model provides a "prefabricated assembled strength nature concrete column component nodal connection structure", this assembled strength nature concrete column component can realize batch production, and site assembly construction improves the construction speed greatly on the nodal connection intensity basis of assurance column component. Meanwhile, the middle part of the section of the prefabricated column member is provided with a hole which is communicated up and down, so that the self weight of the column member is reduced, and the laying of a pipeline in the prefabricated column is facilitated. In addition, the matched assembling steel templates are designed for concrete pouring of the column member nodes, and the assembling and disassembling are convenient.

The technical scheme of the utility model as follows:

the prefabricated assembled stiff concrete column member node connection structure comprises a plurality of prefabricated stiff concrete column members, wherein each prefabricated stiff concrete column member comprises a prefabricated stiff concrete column, cross-shaped steel with flanges is arranged in the middle of each prefabricated stiff concrete column, holes which are communicated up and down are formed in four corners of each cross-shaped steel, longitudinal stressed steel bars which are evenly distributed according to actual load borne by the column members are arranged on the periphery of the prefabricated stiff concrete column members, and the longitudinal stressed steel bars arranged on the periphery of the prefabricated stiff concrete column are connected with steel bar welding points at the end faces of the columns.

Furthermore, the cross-shaped steel end parts of the adjacent prefabricated column components are fixedly connected end to end, and reinforcing steel bars are welded between the opposite welding connection points reserved on the end faces of the upper column and the lower column.

Furthermore, the steel formwork assembly column further comprises steel formworks, the steel formworks are assembled through corners and standards, the steel formworks with discharge openings in the upper portions are provided with steel formworks, grooves used for assembling the formworks are formed in the upper ends and the lower ends of each steel formwork, concrete protruding blocks penetrating through the outer sides of the columns are arranged at the positions, close to the end faces, of each prefabricated column, the steel formworks are assembled at the four corners of the columns through the corners, the assembled steel formworks with discharge openings in the upper portions are assembled in the middle of each face of the columns, and the steel formworks are assembled through standards in other positions according to the actual sizes of the columns.

Furthermore, the cross-shaped steel protrudes from the end face of the column by 300-400 mm.

Furthermore, the U-shaped steel member connecting piece is used for connecting the upper and lower column cross-shaped steel members through bolts.

Furthermore, PVC pipes are used to connect the holes of the upper and lower columns together.

Furthermore, the template assembling machine further comprises a fastener, wherein a handle is arranged on the outer side of the middle part of each template, and the fastener is inserted into the handle of the adjacent template in the template assembling process.

The utility model discloses mainly adopt following technical scheme and beneficial effect as follows:

the utility model discloses according to the trend of current building industrialization development, design out the assembled strength nature concrete column component that is rational in infrastructure, the strutting of template when having solved connection and nodal connection department concrete placement between upper and lower adjacent column component node has guaranteed the intensity of connected node department and concrete placement's quality, has improved the efficiency of construction.

The utility model relates to a design and two parts of adjacent post nodal connection of prefabricated assembled strength nature concrete post. The prefabricated assembled stiff concrete column is reasonable in structural design, the middle of the prefabricated stiff concrete column is provided with the through hole, on one hand, the dead weight of the column can be reduced, and on the other hand, laying of a pipeline in the hole is facilitated during post-assembly of the column. Adjacent post node is from top to bottom through a series of optimal design, realizes the high-speed joint of post node shaped steel, and the quick assembly of node steel form is fixed, when guaranteeing quality and the intensity that adjacent prefabricated post node is connected from top to bottom, has reduced the process of construction and to the influence of all ring edge borders, improves the efficiency of construction greatly, accords with the trend of building industrialization development, consequently the utility model discloses have very showing engineering application meaning and society and economic benefits.

Drawings

FIG. 1 is a schematic view of a prefabricated stiffened concrete column end structure;

FIG. 2 is a schematic view of a prefabricated stiff concrete column connection structure;

FIG. 3 is a first schematic view of a precast stiffened concrete column connection point;

FIG. 4 is a second schematic view of a prefabricated stiffened concrete column connection point;

FIG. 5 is a third schematic view of the connection point of a precast stiffened concrete column;

FIG. 6 is a schematic diagram of a matched steel form structure;

FIG. 7 is a schematic view of the assembly of steel forms at the connection points of adjacent columns;

FIG. 8 is a schematic view of the fixation of steel forms at the connection points of adjacent columns;

fig. 9 is a schematic illustration of steel form fastener attachment.

In the figure: 1. prefabricating a stiff concrete column; 2. cross-shaped steel with flange plates; 3. welding connection points of upper and lower adjacent column steel bars; 4. the column is internally provided with a through hole from top to bottom; 5. the customized steel template rectangular lug is used for assembling and fixing concrete poured at the joint; 6. a screw hole for connecting the cross-shaped steel of the upper column and the lower column; 7. longitudinal steel bars in the column; 8. PVC sleeves; 9. a U-shaped steel member; 10. a connecting bolt; 11. the upper and lower column nodes are connected with longitudinal bars; 12. assembling a steel template on the left side with a discharge opening; 13. assembling a steel template on the right side with a discharge opening; 14. 1/2 assembling steel templates in standard; 15. assembling a steel template at a corner; 16. assembling a steel template in a standard way; 17. a discharge opening; 18. A steel form handle; 19. and fixing the steel template fastener.

Detailed Description

For a further understanding of the contents of this patent, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

The utility model discloses mainly include the steel form design of novel assembled strength nature concrete column component, adjacent post component nodal connection mode and nodal connection department, assemble and fix the three. The prefabricated stiff concrete column component is prefabricated in a factory, assembled vertically on site, U-shaped connecting pieces are adopted to connect cross-shaped steel sections at the end parts of upper and lower adjacent columns through bolts, the steel templates in a matched design are assembled and fixed at the joint of prefabricated column joints, and the concrete content and implementation mode of each part are as follows:

a first part: and (5) prefabricating an assembled type stiff concrete column member. The prefabricated stiffened concrete column component adopts cross-shaped steel 2 with flange plates in the middle, four corners of the cross-shaped steel are respectively provided with holes 4 which are communicated up and down in the column, on one hand, the dead weight of the column component is reduced, on the other hand, pipelines are convenient to lay in the column, concrete pouring outside the cross-shaped steel is realized in a factory, the periphery of the prefabricated column component is provided with in-column longitudinal steel bars 7 which are uniformly distributed according to actual load borne by the column component, the protruding column end faces of the cross-shaped steel at two ends of the column component are controlled to be 300-400mm, longitudinal stressed steel bars arranged along the periphery of the prefabricated stiffened concrete column 1 are connected with steel bar welding points at the column end faces, the welding points 3 of the upper column steel bar and the lower column steel bar are used for welding connection of upper column node connection longitudinal bars 11, and for assembling later-stage column component node connection position templates, a customized steel template which is communicated along the column outer side and has the width of 100mm is arranged at the position 300 Shaped bumps 5 (shown in figure 1).

A second part: connection of adjacent column element nodes. The connection of the upper prefabricated column component and the lower prefabricated column component is divided into two steps: firstly, vertically hoisting a column member by using a vertical hoisting machine, connecting cross-shaped steel of an upper column and a lower column by using a U-shaped steel member 9 through a screw hole 6 and a connecting bolt 10 for connecting the cross-shaped steel of the upper column and the lower column (as shown in figures 2 and 4), and sleeving the holes of the upper column and the lower column together by using PVC sleeves 8 in advance (as shown in figure 3) in order to avoid blocking the holes at the corners of the cross-shaped steel when concrete is poured at joints at later stages. After the connection of the section steels at the end parts of the upper and lower columns is finished, the welding connection reserved on the end surfaces of the upper and lower columns is connected together in a spot welding manner by adopting bolt steel bars, so that the connection of the longitudinal bars of the upper and lower columns is realized (as shown in fig. 5). After the welded connection of the steel bars is completed, a set of steel templates is designed for facilitating concrete pouring at the concrete part of the column connecting joint (as shown in fig. 6). The set of steel templates comprises a corner assembling steel template 15 with the width of 50 mm; the steel templates (including a left assembled steel template 12 with a discharge opening and a right assembled steel template 13 with a discharge opening) with the discharge opening 17 and the width of 200mm on the upper part; standard fabricated steel forms (including 1/2 standard fabricated steel form 14 with a width of 100mm and standard fabricated steel form 16 with a width of 200 mm). The lower extreme is equipped with the tongue that is used for the template to assemble and the width is 100mm on every steel form, and the outside at template middle part is equipped with steel form handle 18, makes things convenient for workman's operation and steel form's fixed. The template assembly at the joint of the column nodes is shown in figure 7, corner templates are assembled at the four corners of the column, templates with discharge openings are assembled in the middle of each surface of the column, and standard templates with the width of 100mm (200mm) are reasonably selected for assembly at other places according to the actual size of the column. The prefabricated column joint steel formworks are assembled and fixed by utilizing a customized steel formwork combination series formwork (as shown in figure 6) and assembling the formworks through rectangular convex blocks arranged on the periphery of the end parts of upper and lower adjacent columns (as shown in figure 7), and special U-shaped fixed steel formwork fasteners 19 are adopted to be inserted into handles arranged in the middle of the outer sides of two adjacent steel formworks one by one along the periphery of the column joint (as shown in figures 8 and 9). In the assembling process of the templates, special fasteners (shown in figure 9) are sequentially inserted into handles of adjacent templates to fix the templates (shown in figures 8 and 9). After the above processes are completed, concrete is poured at the discharging opening reserved in the template, and after the concrete is vibrated compactly and maintained, the node connection of the upper prefabricated stiff concrete column and the lower prefabricated stiff concrete column can be realized.

The utility model discloses at first, propose assembled strength nature concrete column component notion, through reasonable cross-sectional design, the effectual dead weight that alleviates the column component makes things convenient for the pipeline to lay inside the component. Secondly through the bolted connection of column member tip shaped steel and the concrete of shaped steel outside node pour the connection, can effectual assurance node connection department intensity and quality. The utility model discloses the supporting steel form of well design's post node department, it is convenient to assemble, and is fixed reliable, has reduced the degree of difficulty of step and workman's operation that the template was strutted. Consequently the utility model discloses accord with building industrial production's direction and trend, this prefabricated strength nature concrete column assembly is swift, connects reliably, when can effectively improve the efficiency of construction, strengthens the reliability of node junction greatly, consequently, the utility model discloses have the application value of actual engineering to social and economic benefits who is showing have.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Prefabricated assembled strength nature concrete column component node connection structure, including a plurality of prefabricated assembled strength nature concrete column component, its characterized in that: the prefabricated assembly type stiff concrete column component comprises a prefabricated stiff concrete column, cross-shaped steel with flanges is arranged in the middle of the prefabricated stiff concrete column, holes which are communicated up and down are respectively formed in four corners of the cross-shaped steel, longitudinal stress steel bars which are uniformly distributed according to actual load bearing of the column component are arranged on the periphery of the prefabricated assembly type stiff concrete column component, and the longitudinal stress steel bars arranged on the periphery of the prefabricated stiff concrete column are connected with steel bar welding points at the end face of the column.

2. The prefabricated assembled stiff concrete column member node connection structure of claim 1, characterized in that: the cross-shaped steel end parts of the adjacent prefabricated column components are fixedly connected with the end parts, and reinforcing steel bars are welded between the opposite welding connection points reserved on the end surfaces of the upper column and the lower column.

3. The prefabricated assembled stiff concrete column member node connection structure of claim 1, characterized in that: still include the steel form, the steel form is assembled including the corner to the steel form, the steel form is assembled to the standard, upper portion has the steel form of assembling of discharge opening, the lower extreme is equipped with the recess that is used for the template to assemble on every steel form, the position that every prefabricated post is close to the terminal surface is equipped with along the concrete lug that the post outside link up, the corner is assembled the steel form and is assembled in the four corners of post, the steel form is assembled in the centre of every face of post to assemble that upper portion has the discharge opening, other positions adopt the standard to assemble the steel form and assemble according to the actual size of post.

4. The prefabricated assembled stiff concrete column member node connection structure of claim 1, characterized in that: the cross-shaped steel protrudes from the end face of the column by 300-400 mm.

5. The prefabricated assembled stiff concrete column member node connection structure of claim 1, characterized in that: and the cross-shaped steel of the upper column and the lower column is connected by a U-shaped steel member connecting piece through bolts.

6. The prefabricated assembled stiff concrete column member node connection structure of claim 1, characterized in that: PVC pipes are adopted in advance to sleeve and connect the holes of the upper and lower columns together.

7. The prefabricated assembled stiff concrete column member node connection structure of claim 3, wherein: still include the fastener, the outside at template middle part is equipped with the handle, assembles the in-process at the template, and the fastener inserts in the handle of adjacent template.