CN209227581U - Prefabricated Concrete Pyramid Foundation and Column Steel Connection Structure - Google Patents

Abstract

The utility model relates to prefabricated assembled concrete structural construction fields, specially a kind of assembly concrete prismoid shaped basis and column steel connection structure.Prefabricated post is by prefabricated component under Reinforcement, column tie-bar, column in column and coagulation local soil type at Reinforcement connects to form frame structure by column tie-bar in four columns vertically arranged that are square, and the bottom surface of frame structure is welded under column on prefabricated component.Prismoid shaped basis inner bolt bar assembly is set in Reinforcement in prismoid shaped basis, prismoid shaped basis inner bolt bar assembly constrains steel plate by stay bolt bar and is uniformly arranged stay bolt bar, form prefabricated prismoid shaped basic skeleton, it is poured concrete around prefabricated prismoid shaped basic skeleton, obtains prefabricated prismoid shaped basis.The utility model reduces the workload of wet construction as far as possible, greatly improves speed of application and construction quality under the premise of connecting between guaranteeing precast concrete.

Description

Prefabricated Concrete Pyramid Foundation and Column Steel Connection Structure

【Technical field】

The utility model relates to the field of prefabricated assembled concrete structure buildings, in particular to an assembled concrete prism foundation and column steel connection structure.

【Background technique】

The prefabricated concrete structure has the advantages of fast construction speed, energy saving and environmental protection, and small amount of wet work on site. It has developed rapidly in China in recent years. The foundations commonly used in construction include independent foundations, strip foundations, raft foundations, box foundations and pile foundations. Among them, the conical foundation is a kind of independent foundation, which has been widely used in the field of building structures. At present, the conical foundation is mainly cast on site, and there is no related technical invention of the prefabricated conical foundation used in the construction field. The construction requires wet work and the construction speed is slow. For this reason, the connection structure and assembly method of prefabricated concrete conical foundation and column steel are proposed. The force transmission at the connection of this method is completed by steel structural members, which has the advantages of fast installation speed, energy saving and environmental protection.

【Content of utility model】

The purpose of this utility model is to provide a connection structure between prefabricated concrete prism foundation and column steel, which can reduce the workload of wet work as much as possible and greatly improve the construction speed and construction quality under the premise of ensuring the connection between prefabricated concrete components. .

Technical scheme of the utility model:

A prefabricated concrete truss-type foundation and column steel connection structure, including prefabricated columns and prefabricated truss-type foundations, the prefabricated columns are inserted on the top of the prefabricated truss-shaped foundation through the prefabricated parts under the columns, the details are as follows:

The prefabricated column is composed of longitudinally stressed steel bars in the column, column stirrups, prefabricated parts under the column and concrete. The four longitudinally stressed steel bars in the columns arranged vertically in a square form a frame structure through column stirrups. The bottom surface of the frame structure Welded on the prefabricated part under the column, concrete is poured on the inside and outside of the frame structure to form a precast column;

The prefabricated truss foundation is composed of steel bars in the prefabricated truss foundation, bolt rod components in the truss foundation, and concrete. The internal stirrups and the steel mesh at the bottom of the truss-shaped foundation, the four vertically arranged square-shaped vertically-stressed steel bars in the truss-shaped foundation are connected by the internal stirrups of the truss-shaped foundation to form a frame structure, and the bottom of the frame structure is connected with the edge The steel mesh at the bottom of the platform foundation is welded to form an overall structure, and the inner bolt rod assembly of the pyramid foundation is arranged in the longitudinal force-bearing steel bar of the pyramid foundation, and the bolt rod assembly of the pyramid foundation is uniformly arranged with long bolts by constraining the steel plate through the long bolt rod rods to form a prefabricated truss-shaped foundation skeleton, and pour concrete around the prefabricated truss-shaped foundation skeleton to obtain a prefabricated truss-shaped foundation.

In the connection structure between the prefabricated concrete prism foundation and the column steel, the prefabricated parts under the column are welded by the perforated bottom plate, four lateral steel plates and four stiffeners, and the perforated bottom plate with reserved holes is welded A frame surrounded by four lateral steel plates, each outer surface of the frame is respectively welded with stiffeners, and the bottom surface of the stiffeners is welded with the bottom plate with holes.

The prefabricated concrete truss-type foundation and column steel connection structure, the long bolt rod constraining steel plate is welded by four rectangular perforated steel plates to form a frame structure, the long bolt rod constraining steel plates are uniformly reserved holes, the long bolt rod constraining The outer contour size, hole size and position of the steel plate are the same as the perforated bottom plate of the prefabricated part under the column.

In the connection structure between the prefabricated concrete truss-type foundation and the column steel, the long bolt rod passes through the reserved hole on the long bolt rod restraint steel plate, and the long bolt rod and the long bolt rod restraint steel plate are connected by spot welding, and ensure The long bolt rod is perpendicular to the long bolt rod constraining steel plate.

In the prefabricated concrete truss-shaped foundation and column steel connection structure, the middle of the top of the prefabricated truss-shaped foundation is a groove-shaped structure, and the bottom of the groove-shaped structure exposes long bolt rods.

Advantage and beneficial effect of the present utility model are:

1. The on-site installation and connection of prefabricated components of the utility model requires very little wet work. During installation, the grouting material only plays a protective role and does not serve as a force transmission function. Therefore, during construction, construction can be continued without waiting for the grouting material to solidify, greatly Shortening the time required for on-site construction can greatly increase the construction speed, save costs, and meet the advantages of prefabricated concrete structures such as energy-saving, environmental protection, economical and safe green building development requirements.

2. The prefabricated column and the prefabricated truss-type foundation of the utility model are connected through the long bolt rod embedded in the prefabricated truss-type foundation through the bottom plate of the prefabricated part under the column and fixed with nuts, which can effectively realize the connection between the prefabricated column and the prefabricated truss. The transmission of bending moment, shear force and axial force between the truss-type foundations ensures the integrity of the two and meets the requirements of the structural force.

3. The parts of the utility model that require high manufacturing precision, including the manufacture of prefabricated columns and prefabricated truss-type foundations, are all completed in the factory. The difficulty of on-site assembly is not high, which can save the learning cost of construction personnel and greatly improve construction efficiency.

Description of drawings

Figure 1 is a three-dimensional view of the prefabricated part under the column.

Fig. 2 is a three-dimensional diagram of a steel plate constrained by a long bolt shank.

Figure 3 is a three-dimensional diagram of the arrangement of steel bars in the prefabricated column and its connection with Figure 1.

Figure 4 is a three-dimensional view of a prefabricated column.

Fig. 5 is a three-dimensional view of the connection between the bolt rod and Fig. 2 .

Fig. 6 is a three-dimensional diagram of the reinforcement arrangement in the prefabricated pyramid-type foundation.

Fig. 7 is a three-dimensional view of a prefabricated truss-shaped foundation.

Fig. 8 is a three-dimensional cross-sectional view of the prefabricated truss-shaped foundation.

Figure 9 is a three-dimensional view of the prefabricated column and the prefabricated truss-shaped foundation after installation.

Fig. 10 is a three-dimensional cross-sectional view of the prefabricated column and the truss-type foundation after hoisting.

Fig. 11 The three-dimensional diagram after the grouting material is poured between the prefabricated column and the prefabricated truss foundation.

In the figure, 1 prefabricated part under the column; 2 bottom plate with holes; 3 reserved holes; 4 lateral steel plates; 5 stiffening ribs; 6 long bolt rod restraint steel plates; Longitudinal stress-bearing steel bars in the platform-type foundation; 10 internal stirrups in the edge-shaped foundation; 11 reinforcement mesh at the bottom of the edge-shaped foundation; 12 long bolt rods; 13 grouting materials.

Detailed ways

As shown in Figures 1-11, the utility model's assembled concrete prism foundation and column steel connection structure mainly includes prefabricated columns and prefabricated prism foundations, as follows:

(1) As shown in Figure 1, the specific structure and manufacturing process of the prefabricated parts under the column are as follows:

The prefabricated part 1 under the column is welded by a perforated bottom plate 2, four lateral steel plates 4 and four stiffeners 5, and a frame surrounded by four lateral steel plates 4 is welded on the perforated bottom plate 2 with a reserved hole 3 Each outer surface of the frame is welded with a stiffener 5, and the bottom surface of the stiffener 5 is welded with the perforated bottom plate 2.

(2) As shown in Figure 2 and Figure 5, the specific structure and manufacturing process of the bolt rod assembly in the truss-shaped foundation are as follows:

(1) As shown in Figure 2, the long bolt rod constraining steel plate 6 is welded by four rectangular steel plates with holes to form a frame structure. The outline size and hole size and position are the same as those of the bottom plate with holes 2 .

(2) As shown in Figure 5, the long bolt rod 12 passes through the reserved hole 3 above the long bolt rod constraining steel plate 6, and the long bolt rod 12 is connected to the long bolt rod constraining steel plate 6 by spot welding, and the long bolt rod is guaranteed to Rod 12 is perpendicular to long bolt rod constraining steel plate 6.

(3) As shown in Figure 3 to Figure 4, the specific structure and manufacturing process of the prefabricated columns are as follows:

(1) As shown in Figures 3 to 4, the prefabricated column is composed of longitudinally stressed steel bars 7 in the column, column stirrups 8, prefabricated parts 1 under the column and concrete. The reinforcement bars 7 are connected by column stirrups 8 to form a frame structure, the bottom surface of the frame structure is welded on the prefabricated part 1 under the column, and the inner and outer sides of the frame structure are poured with concrete to form a prefabricated column.

(2) The manufacturing process of the prefabricated column is as follows: firstly, welding the longitudinal steel bars 7 in the column of the precast column to the prefabricated part 1 under the column, and then binding the column stirrups 8 to complete the arrangement of the steel bars in the precast column.

The longitudinal stress reinforcement bars 7 in the four columns of the prefabricated column are quadrangular, and are respectively welded to the four vertices at the top of the lateral steel plate 4 of the prefabricated part 1 under the column.

The formwork is supported outside the longitudinally stressed steel bars 7 in the column, concrete is poured, and the formwork is removed after the concrete is solidified to complete the production of the prefabricated column. Wherein, concrete is also poured into the lateral steel plate 4 of the prefabricated part 1 under the column.

(4) As shown in Figure 6 to Figure 8, the specific structure and manufacturing process of the prefabricated truss-type foundation are as follows:

(1) As shown in Figure 6, the prefabricated truss-type foundation is composed of steel bars in the prefabricated truss-shaped foundation, bolt rod components in the truss-shaped foundation, and concrete. Longitudinal stressed steel bars 9, inner stirrups 10 of the pyramid-shaped foundation and steel mesh 11 at the bottom of the pyramid-shaped foundation, four longitudinally stressed steel bars 9 in the pyramid-shaped foundation arranged vertically in a square pass through the inner hoops of the pyramid-shaped foundation The ribs 10 are connected to form a frame structure, and the bottom of the frame structure (i.e. the lower end of the longitudinally stressed steel bars in the pyramid-shaped foundation) is welded with the steel mesh 11 at the bottom of the pyramid-shaped foundation to form an overall structure, and the longitudinally stressed steel bars in the pyramid-shaped foundation The internal bolt rod assembly of the truss-shaped foundation is arranged in 9, and the long bolt rods 12 are evenly arranged on the steel plate 6 constrained by the long bolt shank to form the prefabricated truss-shaped foundation skeleton. Around the prefabricated truss-shaped foundation skeleton, Concrete is poured to obtain a prefabricated truss-type foundation.

(2) As shown in Fig. 7 and Fig. 8, the manufacturing process of prefabricated pyramidal foundation is: at first, binding is used as the steel mesh 11 at the bottom of the pyramidal foundation of the bottom surface, and then the longitudinal stressed steel bars 9 and 9 in the vertical pyramidal foundation are bound The inner stirrup 10 of the truss-shaped foundation is welded to the steel mesh 11 at the bottom of the truss-shaped foundation to form an integral steel skeleton; secondly, the combined structure of the long bolt rod 12 and the long bolt rod constraint steel plate 6 in Fig. 5 is welded to the On the bottom reinforcement mesh 11, inside the longitudinally stressed steel bars 9 in the truss-type foundation; finally, support the formwork outside the prefabricated truss-type foundation, pour concrete, remove the formwork after the concrete solidifies, and complete the prefabrication of the prefabricated truss-type foundation. Wherein, the middle of the top of the prefabricated truss-shaped foundation is a groove-shaped structure, and the bottom of the groove-shaped structure exposes a long bolt rod 12 .

(5) As shown in Figure 9-11, the above-mentioned prefabricated components are prefabricated in the factory and then transported to the construction site for assembly. The specific hoisting process is as follows:

(1) As shown in Figure 9 and Figure 10, for the hoisting of the prefabricated column and the prefabricated truss-shaped foundation, the prefabricated column is hoisted to the top of the prefabricated truss-shaped foundation, and it falls. After falling, ensure the reserved hole of the prefabricated part 1 under the column 3 set in the long bolt rod 12;

(2) As shown in Figure 10, after the hoisting of the prefabricated column and the prefabricated truss-type foundation is completed, a fixing nut is installed on the long bolt rod 12 passing through the reserved hole 3 of the prefabricated part under the column to complete the prefabricated column and the prefabricated truss Fixed connections between foundations.

(3) As shown in Figure 11, after the fixing nuts are installed, the grouting material 13 is poured in the gap between the prefabricated column and the prefabricated truss-type foundation, and after the grouting material is solidified, the fabrication of the prefabricated truss-type foundation is completed . The main function of the grouting material is to protect the prefabricated parts and assist force transmission.

The force transmission mechanism of the utility model is: the bending moment and shear force received by the prefabricated column are transmitted to the bottom plate with holes through the lateral steel plate of the prefabricated part under the column, and the bending moment and shear force received by the bottom plate with holes pass through the bolt rods connected to it. Transfer to prefabricated pyramid-type foundations. The axial force of the prefabricated column is directly transmitted to the groove top surface of the prefabricated pyramid foundation through the perforated steel plate of the prefabricated part under the column. In this way, the transmission of bending moment, shear force and axial force between the prefabricated column and the prefabricated truss foundation can be realized.

The implementation results show that the utility model can effectively realize the transmission of bending moment, shear force and axial force between the prefabricated column and the prefabricated truss foundation, ensure the integrity of the two, and fully meet the requirements of the structural force. On-site installation and connection, the amount of wet work is very small, the time required for on-site construction is less, the construction speed is greatly improved, the cost is saved, the learning cost of construction personnel is saved, and the construction efficiency is greatly improved. The advantages of prefabricated concrete structures that meet the requirements of energy-saving, environmental protection, economical and safe green building development.

Claims (5)

1. A prefabricated concrete truss-type foundation and column steel connection structure, characterized in that it includes a prefabricated column and a prefabricated truss-shaped foundation, and the prefabricated column is inserted on the top of the prefabricated truss-shaped foundation through prefabricated parts under the column, as follows : The prefabricated column is composed of longitudinally stressed steel bars in the column, column stirrups, prefabricated parts under the column and concrete. The four longitudinally stressed steel bars in the columns arranged vertically in a square form a frame structure through column stirrups. The bottom surface of the frame structure Welded on the prefabricated part under the column, concrete is poured on the inside and outside of the frame structure to form a precast column; The prefabricated truss foundation is composed of steel bars in the prefabricated truss foundation, bolt rod components in the truss foundation, and concrete. The internal stirrups and the steel mesh at the bottom of the truss-shaped foundation, the four vertically arranged square-shaped vertically-stressed steel bars in the truss-shaped foundation are connected by the internal stirrups of the truss-shaped foundation to form a frame structure, and the bottom of the frame structure is connected with the edge The steel mesh at the bottom of the platform foundation is welded to form an overall structure, and the inner bolt rod assembly of the pyramid foundation is arranged in the longitudinal force-bearing steel bar of the pyramid foundation, and the bolt rod assembly of the pyramid foundation is uniformly arranged with long bolts by constraining the steel plate through the long bolt rod rods to form a prefabricated truss-shaped foundation skeleton, and pour concrete around the prefabricated truss-shaped foundation skeleton to obtain a prefabricated truss-shaped foundation. 2. The connection structure between prefabricated concrete prism foundation and column steel according to claim 1, characterized in that, the prefabricated part under the column is welded by perforated bottom plate, four lateral steel plates and four stiffeners, and the opening A frame surrounded by four lateral steel plates is welded on the perforated base plate with reserved holes, each outer surface of the frame is welded with stiffeners, and the bottom surface of the stiffeners is welded to the perforated base plate. 3. According to claim 2, the connection structure between prefabricated concrete truss-type foundation and column steel is characterized in that, the long bolt rod constraining steel plate is welded by four rectangular perforated steel plates to form a frame structure, and the long bolt rod constraining steel plate forms a frame structure. Holes are evenly distributed, and the outer contour size, hole size and position of the long bolt rod constrained steel plate are the same as the perforated bottom plate of the prefabricated part under the column. 4. The connection structure between prefabricated concrete prism foundation and column steel according to claim 3, characterized in that, the long bolt rod passes through the reserved hole above the long bolt rod constraining steel plate, and the long bolt rod and the long bolt rod constrain The steel plates are connected by spot welding, and the long bolt rods are guaranteed to be perpendicular to the long bolt rods constraining the steel plates. 5. The connection structure between prefabricated concrete truss-shaped foundation and column steel according to claim 1, characterized in that, the middle of the top of the prefabricated truss-shaped foundation is a groove-shaped structure, and the bottom of the groove-shaped structure exposes long bolt rods .