CN209227579U - Prefabricated prism foundation and column structure - Google Patents

Abstract

The utility model relates to prefabricated assembled concrete structural construction field, specially a kind of assembled prismoid shaped basis and rod structure.The structure includes prefabricated post and prefabricated prismoid shaped basis, prefabricated post is plugged in prefabricated prismoid shaped basis top, prefabricated post is made of built-in fitting casting concrete under Reinforcement, column tie-bar and column in column, the Reinforcement in four columns vertically arranged that is square connects to form frame structure by column tie-bar, built-in fitting under the bottom surface setting column of frame structure；Four pre-buried cast iron pipes vertically arranged that are square are set in the longitudinal reinforcement of prismoid shaped basis, pre-buried cast iron pipe passes through the fixed steel bars laterally arranged and connects, prefabricated prismoid shaped basic skeleton is formed, 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 being connected firmly between guaranteeing precast concrete.

Description

Prefabricated prism foundation and column structure

【Technical field】

The utility model relates to the field of prefabricated assembled concrete structure buildings, in particular to an assembled prism foundation and column 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. At present, 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 cone-shaped foundation is mainly based on on-site watering, and there is no related technical invention of the assembled cone-shaped foundation used in the construction field. The construction requires wet work and the construction speed is slow. To this end, the prefabricated conical foundation structure and the column structure connected with the prefabricated conical foundation are proposed, and the assembly method is proposed to speed up the construction progress and meet the requirements of green environmental protection and energy saving of contemporary prefabricated concrete buildings.

【Content of utility model】

The purpose of this utility model is to propose a prefabricated truss-type foundation and a column structure connected with this kind of prefabricated truss-type foundation, and reduce the work of wet work as much as possible under the premise of ensuring that the precast concrete components are firmly connected. Quantity, greatly improving the construction speed and construction quality.

Technical scheme of the utility model:

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

The prefabricated column is composed of longitudinally stressed steel bars in the column, column stirrups, embedded 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 frame structure The bottom surface is equipped with embedded parts under the column, and the inner and outer sides of the frame structure are poured with concrete to form prefabricated columns;

The prefabricated pyramid foundation is composed of steel bars, embedded cast iron pipes and concrete in the prefabricated pyramid foundation. The reinforcement in the prefabricated pyramid foundation includes vertical reinforcement of the pyramid foundation, transverse stirrup of the pyramid foundation and prefabricated pyramid Reinforcement mesh at the bottom of the truss-type foundation, four vertically arranged square-shaped foundation longitudinal reinforcements are connected through the truss-type foundation transverse stirrups to form a frame structure, and the bottom of the frame structure is welded with the prefabricated truss-type foundation bottom reinforcement mesh For the overall structure, four pre-embedded cast iron pipes arranged vertically in a square shape are arranged in the longitudinal steel bars of the truss-shaped foundation. Concrete is poured around the platform-shaped foundation skeleton to obtain a prefabricated truss-shaped foundation.

In the prefabricated truss-shaped foundation and column structure, the embedded parts under the column are made of two U-shaped steel plates: U-shaped steel plate Ⅰ and U-shaped steel plate Ⅱ, which are welded after vertical splicing, U-shaped steel plate Ⅰ and U-shaped steel plate Ⅱ They are all inverted U-shaped. A notch I is set in the middle of the top edge of the U-shaped steel plate I, and a notch II is set in the middle of the outer top edge of the U-shaped steel plate II. The top edge of the U-shaped steel plate I passes through the gap I and the top of the U-shaped steel plate II. Corresponding to the side notch Ⅱ, it is inserted vertically and then welded to form the embedded part under the column.

In the prefabricated truss-shaped foundation and column 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 the embedded cast iron pipe.

In the prefabricated truss-type foundation and column structure, the top of the pre-embedded cast iron pipe is buckled with a rubber plug.

Advantage and beneficial effect of the present utility model are:

1. The on-site installation and connection of the prefabricated components of the utility model has a small amount of wet work, and the grouting material solidification time is short, about 2 hours, which greatly shortens the time required for on-site construction, greatly improves the construction speed, and saves costs .

2. The prefabricated column and the prefabricated truss-shaped foundation of the utility model, by setting the embedded parts under the steel column between the prefabricated column and the prefabricated truss-shaped foundation, and then pouring concrete, the prefabricated column and the prefabricated truss-shaped foundation are completed. Basic connections. This connection method 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.

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.

4. The utility model mainly adopts the assembly operation, which is greatly reduced compared with the original cast-in-place operation, and meets the advantages of the prefabricated concrete structure such as energy saving, environmental protection, economical and safe green building development requirements.

Description of drawings

Figure 1 is a U-shaped steel plate I.

Figure 2 is a U-shaped steel plate II.

Figure 3 is a three-dimensional view of the embedded parts under the column.

Fig. 4 is a three-dimensional view of the rubber stopper.

Figure 5 is a three-dimensional diagram of the reinforcement arrangement in the prefabricated column.

Fig. 6 is a three-dimensional diagram of the reinforcement arrangement in the column of the welded embedded parts.

Fig. 7 is a three-dimensional view of the prefabricated column after pouring concrete.

Fig. 8 is a three-dimensional diagram of the reinforcement arrangement in the truss-shaped foundation.

Fig. 9 is a three-dimensional diagram of the distribution of steel bars in the truss-shaped foundation after installing the steel bar sleeve.

Fig. 10 is a three-dimensional view of the pyramidal foundation after pouring concrete.

Fig. 11 is a three-dimensional cross-sectional view of a truss-shaped foundation after pouring concrete.

Fig. 12 is a three-dimensional view of the installation process of prefabricated columns and prefabricated truss foundations.

Fig. 13 is a three-dimensional view of the prefabricated column and the prefabricated truss-shaped foundation after installation.

Fig. 14 is a three-dimensional view of the prefabricated column and the prefabricated truss-shaped foundation after grouting.

In the figure, 1. Embedded parts under the column; 2. Longitudinal stress reinforcement in the column; 3. Column stirrup; 4. Embedded cast iron pipe; 5. Longitudinal reinforcement of the truss-shaped foundation; 7. Reinforcement mesh at the bottom of the prefabricated truss-shaped foundation; 8. Fixed steel bar; 9. Rubber plug, 10. Grouting material, 11. U-shaped steel plate Ⅰ, 12, gap Ⅰ, 13, U-shaped steel plate Ⅱ, 14, gap II.

Detailed ways

As shown in Fig. 1-Fig. 14, the prefabricated truss-type foundation and column structure of the utility model mainly includes prefabricated columns and prefabricated truss-type foundation, as follows:

(1) As shown in Figure 1-Figure 3, the specific structure and production process of the embedded parts under the column are as follows:

(1) The embedded part 1 under the column is welded by two U-shaped steel plates (U-shaped steel plate Ⅰ11, U-shaped steel plate Ⅱ13) after vertical splicing. A notch I12 is set in the middle of the inner side of the top edge of the steel plate I11, and a notch II14 is set in the middle of the outer top edge of the U-shaped steel plate II13. The embedded part 1 under the column is formed by welding after insertion.

(2) The width of the embedded part 1 under the column is 10mm, 15mm, 20mm, 25mm or 30mm, the thickness is 10mm, 15mm, 20mm, and the height is 20mm. weight requirements.

(2) As shown in Figure 5-Figure 7, the specific structure and manufacturing process of the prefabricated columns are as follows:

(1) As shown in Figures 5 to 6, the prefabricated column is composed of longitudinally stressed steel bars 2, column stirrups 3, embedded parts 1 under the column and concrete. The stressed steel bars 2 are connected by column stirrups 3 to form a frame structure, the bottom surface of the frame structure is provided with an embedded part 1 under the column, and concrete is poured on the inside and outside of the frame structure to form a prefabricated column.

(2) The manufacturing process of the prefabricated column is as follows: firstly, the longitudinal stress reinforcement 2 in the prefabricated column is fixed, and then the column stirrup 3 is bound to complete the arrangement of the reinforcement in the prefabricated column. Then, the embedded part 1 under the column is fixed on the column stirrup 3 by welding.

As shown in Figure 7, the formwork is supported outside the longitudinally stressed steel bar 2 inside the column, concrete is poured, and the formwork is removed after the concrete solidifies to complete the production of the prefabricated column.

(3) As shown in Figure 8 to Figure 11, the specific structure and manufacturing process of the prefabricated truss foundation are as follows:

(1) As shown in Figures 8-9, the steel bars in the prefabricated truss-shaped foundation include truss-shaped foundation longitudinal reinforcement 5, truss-shaped foundation transverse stirrup 6 and prefabricated truss-shaped foundation bottom reinforcement mesh 7, four The longitudinal steel bars 5 of the pyramid-shaped foundation vertically arranged in a square form a frame structure through the horizontal stirrups 6 of the pyramid-shaped foundation. The reinforcement mesh 7 at the bottom of the foundation is welded to form an overall structure, and four embedded cast iron pipes 4 arranged vertically in a square shape are arranged in the longitudinal reinforcement bars 5 of the truss-shaped foundation, and the embedded cast iron pipes 4 are connected by fixed reinforcement bars 8 arranged horizontally. A prefabricated truss-shaped foundation skeleton is formed, and concrete is poured around the prefabricated truss-shaped foundation skeleton to obtain a prefabricated truss-shaped foundation.

(2) As shown in Figure 10 and Figure 11, the manufacturing process of the prefabricated truss-shaped foundation is as follows: firstly, the embedded cast iron pipe 4 is fixed with the fixed steel bar 8, and then the fixed embedded cast iron pipe 4 is spot welded to the prefabricated Reinforcement mesh 7 at the bottom of the truss-shaped foundation, and then buckle the rubber plug 9 on the top of the embedded cast iron pipe 4, then bind the longitudinal reinforcement 5 of the truss-shaped foundation and the transverse stirrup 6 of the truss-shaped foundation, and weld them to the prefabricated truss-shaped foundation On the steel mesh 7 at the bottom of the foundation, finally support the truss-shaped formwork outside the frame structure, pour concrete, remove the formwork after the concrete solidifies, and complete the prefabrication of the prefabricated truss-shaped foundation. Wherein, the purpose of buckling the rubber plug 9 is to prevent concrete from falling into the embedded cast iron pipe 4 when pouring concrete. The middle of the top of the prefabricated pyramid-shaped foundation is a groove-shaped structure, and the embedded cast iron pipe 4 is exposed at the bottom of the groove-shaped structure.

(4) As shown in Figure 12-14, the above 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 12, first hoist the truss-shaped foundation to the predetermined position, pull out the rubber plug 9, then hoist the prefabricated column to the top of the prefabricated truss-shaped foundation, and drop it to ensure the vertical force in the column The steel bar 2 extends into the embedded cast iron pipe 4;

(2) As shown in Figures 13-14, after the hoisting of the prefabricated column and the prefabricated truss-type foundation is completed, the embedded part 1 under the column of the prefabricated column is supported on the top surface of the groove of the prefabricated prism-shaped foundation, so that the bottom surface of the prefabricated column There is a gap between the groove top surface of the prefabricated truss-shaped foundation, and then the grouting material 10 is poured at the joint between the prefabricated column and the prefabricated truss-shaped foundation, and the grouting material 10 fills the embedded cast iron pipe 4 and the prefabricated column and the prefabricated truss-shaped foundation. The gap between the foundations completes the connection between the prefabricated column and the prefabricated truss-type foundation.

The force transmission mechanism of the utility model is as follows: the longitudinal steel bar of the prefabricated column extends into the pre-embedded cast iron pipe of the prefabricated truss-shaped foundation, and the two are firmly connected together through the grouting material, and the pre-embedded cylindrical steel pipe and the prefabricated truss-shaped foundation are firmly connected. connection, so that the longitudinal reinforcement of the prefabricated column is firmly connected with the prefabricated pyramid foundation, so that the bending moment of the prefabricated column is transmitted to the prefabricated pyramid foundation through the prefabricated longitudinal reinforcement; the axial force of the prefabricated column directly passes through The grouting material is transmitted to the top surface of the groove of the prefabricated pyramid-shaped foundation; the shear force of the prefabricated column is transmitted to the grouting material through the embedded parts under the column, and then transmitted to the prefabricated pyramid-shaped foundation by the grouting material. In this way, the transmission of bending moment, shear force and axial force between the prefabricated column and the prefabricated truss foundation is 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 (4)

1. a kind of assembled prismoid shaped basis and rod structure, which is characterized in that prefabricated including prefabricated post and prefabricated prismoid shaped basis Column is plugged in prefabricated prismoid shaped basis top by built-in fitting under column, specific as follows:

Prefabricated post is by built-in fitting under Reinforcement, column tie-bar, column in column and coagulation local soil type at be square four vertically to arrange Reinforcement connects to form frame structure by column tie-bar in a column, built-in fitting under the bottom surface setting column of frame structure, frame The inner side and outer side casting concrete of frame structure forms prefabricated post；

Prefabricated prismoid shaped basis by prefabricated prismoid shaped basis reinforcing bar, pre-buried cast iron pipe, coagulation local soil type is at prefabricated prismoid shaped base Reinforcing bar in plinth includes prismoid shaped basis longitudinal reinforcement, prismoid shaped basis lateral tie and prefabricated prismoid shaped foundation bottom reinforcing bar Net, four prismoid shaped basis longitudinal reinforcements vertically arranged that are square connect to form frame knot by prismoid shaped basis lateral tie Structure, the bottom of frame structure weld to form overall structure with prefabricated prismoid shaped foundation bottom steel mesh again, vertical on prismoid shaped basis Four pre-buried cast iron pipes vertically arranged that are square are set into reinforcing bar, and pre-buried cast iron pipe passes through the fixed steel bars laterally arranged and connects It connects, forms prefabricated prismoid shaped basic skeleton, be poured concrete around prefabricated prismoid shaped basic skeleton, obtain prefabricated prismoid shaped base Plinth.

2. assembled prismoid shaped basis described in accordance with the claim 1 and rod structure, which is characterized in that built-in fitting is by two pieces under column U-shaped steel plate: U-shaped steel plate I, U-shaped steel plate II vertically splicing after be welded, U-shaped steel plate I, U-shaped steel plate II be it is inverted U-shaped, Intermediate on the inside of the top margin of U-shaped steel plate I that notch I is arranged, the top margin outside of U-shaped steel plate II is intermediate to be arranged notch II, U-shaped steel plate I Top margin is corresponding with the top margin notch II of U-shaped steel plate II by notch I, and built-in fitting under the column that is welded after vertically inserting.

3. assembled prismoid shaped basis described in accordance with the claim 1 and rod structure, which is characterized in that prefabricated prismoid shaped basis Top center is groove type structure, and pre-buried cast iron pipe is exposed in the bottom of groove type structure.

4. assembled prismoid shaped basis described in accordance with the claim 1 and rod structure, which is characterized in that the top of pre-buried cast iron pipe Buckle rubber stopper.