一种桁架式型钢混凝土柱柱脚连接结构
By setting up a small steel composite space truss structure within the foundation, the problem of excessive embedment depth of steel-concrete columns was solved, achieving the effects of reducing project costs and risks, enhancing the anchoring force of the column foundation, and simplifying the construction process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY SHANGHAI DESIGN INST GRP CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, excessively deep embedment of steel-concrete composite columns leads to an increase in the height of the foundation, which increases project investment and foundation pit engineering risks, and makes it difficult to meet the requirements of the floor height and stiffness ratio of the upper and lower floors of the vehicle base.
The truss-type steel-concrete column base connection structure is adopted. By setting a small steel composite space truss in the foundation and connecting it with the steel, the embedment depth of the steel is reduced, forming an integral structure, enhancing the anchorage force of the column foundation, and reducing the project cost.
By reducing the embedment depth of the steel sections, the difficulty and risk of project implementation are reduced, the project cost is lowered, and the efficiency of hoisting and positioning is improved.
Smart Images
Figure CN224514429U_ABST
Abstract
Claims
1. A connection structure of a steel reinforced concrete column to a pile cap, comprising a steel reinforced concrete column and a pile cap, the steel reinforced concrete column being disposed above the pile cap, characterized in that: The bottom of the steel-concrete column is provided with vertical small steel sections. The small steel sections are arranged in two or more layers of horizontal small steel sections at intervals along the vertical within the height range of the foundation. The horizontal small steel sections are fixedly connected to form a spatial truss structure. The foundation is provided with a prefabricated integral support structure around it. The prefabricated integral support structure contains embedded steel sections. The spatial truss structure is connected with the embedded steel sections to form an integral whole.
2. The connection structure of the steel reinforced concrete column and the base according to claim 1, wherein: The horizontal small steel sections of each layer are connected by anchor bolts or small connecting steel sections to form a space truss structure.
3. The connection structure of the truss type steel reinforced concrete column and column base according to claim 1, characterized in that: The vertical small steel profiles include several small steel profiles arranged longitudinally and laterally within the planar projection range of the steel-concrete column, and the small steel profiles in the longitudinal and transverse directions are fixedly connected to form an integral structure.
4. The connection structure of the truss-shaped steel reinforced concrete column and the column base according to claim 1, characterized in that: The vertical small steel section is embedded in the foundation by 500mm to 1 times the cross-sectional height of the steel-concrete column.
5. The connection structure of a truss-shaped steel reinforced concrete column and a column base according to claim 4, characterized in that: Horizontal stiffening ribs and reinforcing stirrups are provided at the top surface of the vertical small steel section embedded in the foundation.
6. The connection structure of a truss-shaped steel reinforced concrete column and a column base according to claim 4, characterized in that: A column base plate is installed at the bottom of the vertical small steel section embedded in the foundation.