Inclined column foot connecting structure of stiff arch column

Abstract

The utility model discloses an inclined column foot connecting structure of a stiff arch column, which comprises a pile foundation, a bearing platform arranged on the pile foundation, a retaining wall arranged on the back surface of the bearing platform, an inclined steel reinforcement framework positioned in the bearing platform, an embedded steel plate arranged in the inclined steel reinforcement framework and an embedded steel column, one end of the embedded steel column is inserted into the inclined steel reinforcement framework and is connected with the embedded steel plate, and the other end of the embedded steel column is connected with the retaining wall. And the other end extends out of the bearing platform structure and is connected with the steel arch column. The pile foundation, the bearing platform and the inclined steel reinforcement framework are arranged in the arch springing mounting area and used for improving the bearing capacity of the arch springing, the arch springing is prevented from being damaged under the acting force of the steel arch column, meanwhile, the arch springing mounting area and the bearing platform structure can be effectively combined into a whole through the inclined steel reinforcement framework, local damage is avoided, and the service life of the arch springing is prolonged. The bearing capacity of the large-span and heavy-weight arch column structure is effectively improved, and the safety of the structure is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of arch foot installation, in particular to an inclined column foot connection structure of a stiffened arch column. Background Technique

[0002] The main entrances of places with dense population and large traffic flow such as airports, railway stations, stadiums, and exhibition centers are designed with magnificent shapes, with spans up to hundreds of meters, and the shapes are beautiful. The design elements of large-span structures have been more and more applied to engineering designs. In order to meet the usage and shape design requirements of the main entrances, it is generally necessary to reduce the number of support structures as much as possible.

[0003] This project is a certain airport terminal building. The roof structure is in the form of a large-span steel structure, with a plane size of 232m in the east-west direction, 72m in the north-south direction, and 31.9m in height. The top elevation of the roof in the east-west direction increases from both ends to the middle, with the elevation increasing from 19.3m to 31.9m. And the main entrance of the terminal building is designed on the east-west side. Arch columns are designed at the entrance, and the horizontal span of the arch columns is as long as 165m, with a large span and self-weight. How to design an arch foot structure that can support the arch columns is the problem faced at present. Content of the Utility Model

[0004] The utility model provides an inclined column foot connection structure of a stiffened arch column, which can bear the installation of arch columns with large spans and large weights, and ensure the large spatiality and structural safety of use.

[0005] The technical problem to be solved is: how to design an arch foot structure that can support arch columns with large spans and large weights.

[0006] To solve the above technical problems, the utility model adopts the following technical solutions:

[0007] The inclined column foot connection structure of the stiffened arch column of the utility model includes a pile foundation, a bearing platform arranged on the pile foundation, an inclined steel bar cage located in the bearing platform, a pre-embedded steel plate arranged in the inclined steel bar cage, and a pre-embedded steel column. One end of the pre-embedded steel column is inserted into the inclined steel bar cage and connected to the pre-embedded steel plate, and the other end extends out of the bearing platform structure for subsequent connection with the steel arch column.

[0008] For the inclined column foot connection structure of the stiffened arch column of the utility model, further, a plurality of pile foundations are arranged at intervals under the bearing platform, and the pile foundation steel bars are inserted into the bearing platform for anchoring.

[0009] For the inclined column foot connection structure of the stiffened arch column of the utility model, further, the bearing platform includes a lower bearing platform section cast first and an upper bearing platform section cast later on the lower bearing platform section.

[0010] The utility model provides a slanted column foot connection structure of a rigid arch column, and further, the lower pedestal section comprises a lower frame structure formed by enclosing a plurality of transverse steel bars and longitudinal steel bars, and a lower concrete structure.

[0011] The utility model provides a connection structure for the inclined column foot of a rigid arch column, and further, the upper pedestal section comprises an upper frame structure formed by enclosing a plurality of vertical steel bars and horizontal steel bars, and an upper concrete structure, and the lower ends of the vertical steel bars are inserted into the lower concrete structure.

[0012] The utility model provides a diagonal column foot connection structure of a rigid arch column, further, the diagonal steel bar skeleton comprises a plurality of diagonal steel bars and stirrups connected to the outside of the plurality of diagonal steel bars, and the lower ends of the diagonal steel bars extend downward to the edge of the pedestal.

[0013] The utility model provides a slanted column foot connection structure for a rigid arch column, further, the embedded steel plate is provided with embedded anchor bolts.

[0014] The utility model provides a connection structure for the inclined column foot of a rigid arch column, further, a retaining wall is provided on the side of the lower pedestal section away from the steel arch column.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The present application arranges a plurality of pile foundations at intervals under the pedestal to serve as the main load-bearing structure of the arch column. A pedestal is arranged on the pile foundation and a retaining wall is arranged on the side to serve as a force transmission structure for transmitting the force of the arch column to the pile foundation and the installation space of the column foot and to increase the horizontal resistance of the arch foot. An inclined steel frame is arranged as a reinforcement structure to improve the bearing capacity of the arch foot and avoid damage to the arch foot under the force of the arch column. At the same time, the inclined steel frame can effectively combine the arch foot installation area and the pedestal structure into a whole to avoid local bending and torsion damage, effectively improve the bearing capacity of the arch column structure with a large span and a large weight, and ensure the safety of the structure.

[0017] The utility model will be further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the steel bar structure of the utility model.

[0020] Reference numerals:

[0021] 1. Pile foundation; 2. Cap; 2.1. Lower cap section; 2.2. Upper cap section; 2.3. Transverse reinforcement; 2.4. Longitudinal reinforcement; 2.5. Vertical reinforcement; 2.6. Horizontal reinforcement; 3. Oblique reinforcement skeleton; 3.1. Oblique reinforcement; 3.2. Stirrups; 4. Embedded steel plates; 5. Embedded steel columns; 6. Retaining wall. DETAILED DESCRIPTION

[0022] like Figure 1 - Figure 2 As shown, the utility model discloses an inclined column foot connection structure of a rigid arch column, comprising a pile foundation 1, a cap 2 arranged on the pile foundation 1, an inclined steel bar skeleton 3 located in the cap 2, an embedded steel plate 4 arranged in the inclined steel bar skeleton 3, and an embedded steel column 5. The embedded steel column 5 is inclinedly arranged, one end of which is inserted into the inclined steel bar skeleton 3 and connected to the embedded steel plate 4, and the other end extends out of the cap 2 structure for subsequent connection with the arch column.

[0023] A plurality of pile foundations 1 are arranged at intervals at the bottom of the pedestal 2, which are used as the main load-bearing structure of the arch column. The pedestal 2 includes a lower pedestal section 2.1 cast in advance, an upper pedestal section 2.2 cast on the lower pedestal section 2.1, and a retaining wall 6. The lower pedestal section 2.1 includes a lower frame structure and a lower concrete structure enclosed by a plurality of transverse steel bars 2.3 and longitudinal steel bars 2.4; the upper pedestal section 2.2 is located in the middle of the top surface of the lower pedestal section 2.1, and the upper pedestal section 2.2 includes an upper frame structure and an upper concrete structure enclosed by a plurality of vertical steel bars 2.5 and horizontal steel bars 2.6. The lower end of the vertical steel bar 2.5 is inserted into the lower concrete structure to combine the upper pedestal section 2.2 and the lower pedestal section 2.1 into a whole. The pedestal is used as a force transmission structure for transmitting the force of the arch column to the pile foundation 1 and an installation space for the column foot.

[0024] The retaining wall 6 is arranged on the side of the lower pedestal section 2.1 away from the steel arch column, and the lower end of the steel frame of the retaining wall 6 is inserted into the lower pedestal section 2.1 and anchored to increase the soil pressure.

[0025] The inclined steel bar skeleton 3 is tied inside the structure of the upper pedestal section 2.2, and its inclination direction is the same as the inclination direction of the column foot. It includes multiple inclined steel bars 3.1 and stirrups 3.2 connected to the outside of the multiple inclined steel bars 3.1. The lower ends of the inclined steel bars 3.1 extend downward to the bottom of the lower pedestal section 2.1, and the inclined steel bar skeleton 3 is respectively connected to the lower pedestal section 2.1 and the upper pedestal section 2.2 as a whole. The inclined steel bar skeleton 3 serves as a reinforcement structure to improve the bearing capacity of the arch foot and avoid damage to the arch foot under the force of the arch column. At the same time, the inclined steel bar skeleton 3 can effectively combine the arch foot installation area with the pedestal 2 structure as a whole, avoid local bending and torsion damage, effectively improve the bearing capacity of the arch column structure with a large span and heavy weight, and ensure the safety of the structure.

[0026] The back of the embedded steel plate 4 is provided with embedded anchor bolts. When pouring the concrete of the bearing platform 2, the embedded steel plate 4 is embedded into the previously poured concrete structure. The embedded steel column 5 is connected to the embedded steel plate 4 and is arranged along the inclined direction of the inclined steel bar framework 3, which is used as the connection corner point of the arch column and is convenient for installation.

[0027] The construction steps are as follows:

[0028] First, construct the lower pile foundation 1. After the pile foundation 1 reaches the required strength, excavate and chisel the pile foundation 1, pour the cushion layer, bind the steel bar framework of the lower bearing platform section 2.1 and pre-insert the steel bars of the upper bearing platform section 2.2 and the side retaining wall, pour the concrete, and then carry out the binding of the remaining steel bars of the upper bearing platform section 2.2 and the side retaining wall and the construction of the embedded steel plate 4, pour the concrete, hoist the embedded steel column 5, carry out the subsequent steel bar installation, pour the remaining concrete, and finally carry out the earth backfilling.

[0029] The embodiments described above are only used to describe the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. The inclined column foot connection structure of a stiffening arch column, characterized in that: The invention comprises a pile foundation (1), a cap (2) arranged on the pile foundation (1), an inclined steel frame (3) located in the cap (2), an embedded steel plate (4) arranged in the inclined steel frame (3), and an embedded steel column (5), wherein one end of the embedded steel column (5) is inserted into the inclined steel frame (3) and connected to the embedded steel plate (4), and the other end extends out of the cap (2) structure for subsequent connection with a steel arch column.

2. The inclined column base connection structure of the stiffened arch column according to claim 1, characterized in that: A plurality of pile foundations (1) are arranged at intervals at the bottom of the cap (2), and the steel bars of the pile foundations are inserted into the cap (2) and anchored.

3. The inclined column base connection structure of the stiffened arch column according to claim 1, characterized in that: The foundation (2) comprises a lower foundation section (2.1) cast in advance and an upper foundation section (2.2) cast on the lower foundation section (2.1) afterwards.

4. The inclined column foot connection structure of the stiffened arch column according to claim 3, characterized in that: The lower pedestal section (2.1) comprises a lower frame structure formed by enclosing a plurality of transverse steel bars (2.3) and longitudinal steel bars (2.4) and a lower concrete structure.

5. The inclined column base connection structure of the stiffened arch column according to claim 3, characterized in that: The upper pedestal section (2.2) comprises an upper frame structure formed by enclosing a plurality of vertical steel bars (2.5) and horizontal steel bars (2.6) and an upper concrete structure, wherein the lower ends of the vertical steel bars (2.5) are inserted into the lower concrete structure.

6. The inclined column base connection structure of the stiffened arch column according to claim 3, characterized in that: The inclined steel bar skeleton (3) comprises a plurality of inclined steel bars (3.1) and stirrups (3.2) connected to the outside of the plurality of inclined steel bars (3.1), and the lower ends of the inclined steel bars (3.1) extend downward to the edge of the cap (2).

7. The inclined column base connection structure of the stiffened arch column according to claim 1, characterized in that: The embedded steel plate (4) is provided with embedded anchor bolts.

8. The inclined column foot connection structure of the stiffened arch column according to claim 3, characterized in that: A retaining wall (6) is provided on the side of the lower platform section (2.1) facing away from the steel arch column.

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