CN204357000U - A kind of precast and assembled reinforced concrete spinous process of the seventh cervical vertebra frame - Google Patents

Abstract

A kind of precast and assembled reinforced concrete spinous process of the seventh cervical vertebra frame, comprise high performance concrete skeleton, high performance concrete skeleton is the column structure of hollow, some vertical muscle are provided with along its length in high performance concrete skeleton, in high performance concrete skeleton, its cross-sectional direction is provided with some reinforcing bars and stirrup, vertical muscle and stirrup embed in the sidewall of high performance concrete skeleton, vertical muscle is positioned among the encirclement of stirrup, reinforcing bar strides across the center cavity of prefabricated high performance concrete hollow column, the termination of reinforcing bar is connected to the inner side of stirrup, the utility model belongs to the outside frame portion be prefabricated in the factory, can install at building-site, and and beam, plate is together whole to be watered, be suitable for different project situation demand, there is easy construction, with low cost, the feature of function admirable.

Description

A prefabricated assembled reinforced concrete column skeleton

technical field

The utility model belongs to the technical field of buildings, in particular to a prefabricated and assembled reinforced concrete column skeleton.

Background technique

In the modern reinforced concrete structure, the earliest and most widely used structural form is the cast-in-place reinforced concrete structure, which is a structure formed by setting up formwork on site and integrally pouring, and has the advantages of good overall performance, high rigidity, and good seepage resistance. , At the same time, it is also highly adaptable to buildings with irregular shapes and flexible spaces. However, there are also many disadvantages in the process of use, such as on-site formwork and construction, many construction procedures, a large amount of labor, a large amount of materials, a long cycle, and high costs, which have not played a role in creating a resource-saving and environment-friendly society. positive impetus.

Therefore, with the development of building construction technology, prefabricated concrete structures can appear and develop. It is a concrete structure assembled and connected by prefabricated concrete components or components. Compared with the cast-in-place concrete structure, the prefabricated structure can make the production of building components not affected and restricted by seasons, and realize industrial production. Since the components are poured and maintained in the factory, the quality of the components can be guaranteed, and the construction period is greatly shortened. Speeding up the construction progress saves a lot of formwork support, but it also has many shortcomings, such as poor overall performance, poor impermeability, unfavorable earthquake resistance, and certain deficiencies in use and aesthetics.

Contents of the invention

In order to overcome the above-mentioned shortcomings of the prior art, the purpose of this utility model is to provide a prefabricated and assembled reinforced concrete column skeleton. It is installed on site and cast together with beams and slabs. It is suitable for different engineering conditions and has the characteristics of simple construction, low cost and excellent performance.

In order to achieve the above object, the technical solution adopted by the utility model is:

A prefabricated reinforced concrete column framework, including a high-performance concrete framework 1, the high-performance concrete framework 1 is a hollow columnar structure, a number of longitudinal bars 2 are arranged in the high-performance concrete framework 1 along its length direction, and the high-performance concrete framework 1 1 is provided with a number of steel bars 3 and stirrups 4 along its cross-sectional direction, the longitudinal bars 2 and stirrups 4 are embedded in the side wall of the high-performance concrete skeleton 1, the longitudinal bars 2 are located in the surround of the stirrups 4, and the steel bars 3 span Through the central cavity of the prefabricated high-performance concrete hollow column 1, the end of the steel bar 3 is connected to the inner side of the stirrup 4.

The longitudinal reinforcement 2 is arranged at least at the connection position of the reinforcement 3 and the stirrup 4 .

The stirrups 4 are welded composite stirrups or continuous spiral high-strength stirrups.

Compared with the prior art, the beneficial effects of the utility model are:

1) Each component can be prefabricated and combined on site. It can not only ensure the integrity, but also greatly improve the anti-seismic performance.

2) Easy construction. The prefabricated steel skeleton parts are all prefabricated in the factory. On the construction site, the steel bars of the prefabricated part are directly connected to the nodes or steel columns (or transitionally connected to the concrete columns), and then the hollow part inside the concrete is poured to complete the construction and installation of the reinforced concrete columns. Compared with the traditional column construction and installation, there is no need to bind steel bars, support formwork, remove formwork and erect temporary supports under the column on site. After rational design, the construction and installation of reinforced concrete columns will be as convenient and fast as steel columns, and the construction performance will be greatly improved.

3) Function improvement. High-performance concrete can be used in the prefabricated part, and ordinary-strength concrete can be used in the cast-in-place part, and the strength grades of the two concretes can be different. Therefore, in practical engineering applications, the choice of floor concrete can be independent of the strength of the concrete in the column, and various types of concrete with different characteristics can be selected to effectively improve the functional requirements of the structure. For example, for the cast-in-place concrete of reinforced concrete columns, recycled concrete can be used to save resources and energy; lightweight aggregate concrete can be used to reduce self-weight; rubber concrete or sound-absorbing concrete can be used to improve vibration and sound insulation effects; Insulation performance, thermal insulation concrete can be used.

3) The construction quality is good. In the traditional column construction, due to many column construction procedures and high construction difficulty, quality problems such as poor concrete vibration in the column web, insufficient concrete strength, and dislocation of steel bars in the column often occur, and the construction quality is not easy to control. In the prefabricated reinforced concrete column of the present invention, the frame part of the reinforced concrete column is prefabricated in the factory, the concrete is poured and vibrated conveniently and can be cured by steam, and the quality of concrete construction is easy to control, especially when high performance concrete is used, the reinforced concrete column The advantages in construction quality control are more obvious.

Generally speaking, compared with traditional columns, reinforced concrete columns using prefabricated assembly technology simplifies the construction process and construction difficulty, and can give full play to and effectively improve the significant performance of columns in terms of mechanical performance, durability, fire resistance and economic performance. Advantages, can be widely used in various types of reinforced concrete and steel structures, especially for long-span, heavy-load or complex, irregular high-rise buildings and super high-rise buildings. Therefore, it is of great engineering practical significance to carry out in-depth research on the prefabricated reinforced concrete column of the present invention to promote its popularization and application.

Description of drawings

Fig. 1 is a structural schematic diagram of the prefabricated assembled reinforced concrete column skeleton of the utility model.

Fig. 2 is a top view of the skeleton of the prefabricated and assembled reinforced concrete column of the present invention.

Fig. 3 is a top view of the prefabricated assembled reinforced concrete column obtained by using the skeleton of the prefabricated assembled reinforced concrete column of the present invention.

Detailed ways

The implementation of the utility model will be described in detail below in conjunction with the accompanying drawings and examples.

The utility model is a prefabricated assembled reinforced concrete column framework, as shown in Figure 1 and Figure 2, comprising a high-performance concrete framework 1, the high-performance concrete framework 1 is a hollow columnar structure, in the high-performance concrete framework 1 along its length direction A number of longitudinal bars 2 are provided, and a number of steel bars 3 and stirrups 4 are arranged in the high-performance concrete skeleton 1 along its cross-sectional direction. The longitudinal bars 2 and stirrups 4 are embedded in the side wall of the high-performance concrete skeleton 1. Surrounded by the stirrup 4, the steel bar 3 spans the central cavity of the prefabricated high-performance concrete hollow column 1, and the end of the steel bar 3 is connected to the inner side of the stirrup 4. Longitudinal bars 2 are arranged at least at the connection position between steel bars 3 and stirrups 4. Longitudinal bars 2 protrude from both ends of prefabricated high-performance concrete hollow column 1 in the column length direction. Stirrups 4 can be welded composite stirrups or continuous spiral High-strength stirrups.

The high-performance concrete skeleton 1, longitudinal bars 2, steel bars 3 and stirrups 4 of the utility model are prefabricated in a factory at one time, and the formed skeleton is transported to the construction site to be spliced with columns and beams, and poured in the center of the high-performance concrete skeleton 1 Concrete 5, to obtain prefabricated steel concrete columns, as shown in Figure 3. The prefabricated assembled steel concrete column adopts the idea of partial prefabricated assembly and part cast-in-place, which can obtain better overall performance.

in:

1) The high-performance concrete on which the high-performance concrete skeleton 1 is based can improve the crack resistance, durability and fire resistance of prefabricated steel concrete columns.

2) The stirrup 4 can be welded composite stirrup or continuous spiral high-strength stirrup, which can ensure the integrity of the prefabricated part and save steel.

3) In order to facilitate the fabrication of the hollow part of the prefabricated high-performance concrete hollow column 1, the concrete rubber mandrel can be used repeatedly.

To sum up, the prefabricated and assembled reinforced concrete column framework of the present invention produces an effective circumferential binding force on the secondary poured concrete, thereby improving its bearing capacity. At the same time, high-performance concrete has good durability and ductility. The stirrups can use welded composite stirrups and continuous spiral high-strength stirrups to save the amount of steel bars, and at the same time provide a certain degree of protection against lateral damage to the precast high-performance concrete frame. It effectively improves the overall performance and seismic performance of the structure structurally, and at the same time greatly improves the deformation capacity of components during transportation and hoisting, and realizes the overall improvement and enhancement of the mechanical performance and service performance of prefabricated reinforced concrete components. The utility model has many significant performance advantages such as convenient construction, wide applicability, and high overall performance, and can be widely used in various reinforced concrete engineering structures such as buildings, workshops, bridge columns, etc., has wide application prospects, and has important engineering practice significance and social economy benefit.

Claims (3)

1. A prefabricated assembled reinforced concrete column skeleton is characterized in that it comprises a high-performance concrete skeleton (1), and the high-performance concrete skeleton (1) is a hollow columnar structure, along its lengthwise direction in the high-performance concrete skeleton (1). A number of longitudinal bars (2) are arranged, and a number of steel bars (3) and stirrups (4) are arranged in the high-performance concrete skeleton (1) along its cross-sectional direction, and the longitudinal bars (2) and stirrups (4) are embedded in the height In the side wall of the performance concrete skeleton (1), the longitudinal reinforcement (2) is located in the surround of the stirrup (4), the reinforcement (3) spans the central cavity of the prefabricated high-performance concrete hollow column (1), and the reinforcement (3 ) is connected to the inner side of the stirrup (4). 2. The prefabricated assembled reinforced concrete column skeleton according to claim 1, characterized in that, the longitudinal reinforcement (2) is at least provided at the connecting position of the reinforcement (3) and the stirrup (4). 3. The prefabricated assembled reinforced concrete column skeleton according to claim 1, characterized in that, the stirrups (4) are welded composite stirrups or continuous spiral high-strength stirrups.