A prefabricated staggered joint assembled segmental split column for underground structures
An underground structure and split technology, which is applied to underwater structures, infrastructure engineering, buildings, etc., can solve problems such as insufficient horizontal deformation capacity
Active Publication Date: 2021-05-14
BEIJING UNIV OF TECH
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The above-mentioned prefabricated staggered joint segmental split column is used to replace the traditional cast-in-place integral reinforced concrete column, which overcomes the defect of insufficient horizontal deformation capacity of the traditional reinforced concrete column under high axial compression
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0027] Such as Figure 1-13 As shown in Fig. 1, a prefabricated staggered segmental split column for underground structures, the split column consists of long segment prefabricated reinforced concrete columns (1), short segment prefabricated reinforced concrete columns (2), and rubber pads at the end of the columns layer (3), inter-column rubber cushion (4) and prestressed steel strands (5); the long section prefabricated reinforced concrete columns (1) are stacked in sequence along the height direction and a section of the short The segmental prefabricated reinforced concrete column (2) forms a split column unit; the four split column units are combined into a whole in two rows and two columns, and gaps are reserved between the split column units; the rubber cushion at the end of the column ( 3) It is arranged at the two ends of the split column unit, and is respectively connected with the top and bottom beams; the inter-column rubber cushion (4) is arranged in the middle of ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a segmental split column for prefabricated staggered seam assembly of underground structures. The split column is composed of a long-segment prefabricated reinforced concrete column, a short-segment prefabricated reinforced concrete column, a rubber cushion at the end of the column, a rubber cushion between columns and a prestressed steel strand. The long-segment prefabricated reinforced concrete columns are stacked sequentially along the height direction, and a short-segment prefabricated reinforced concrete column is placed at one end to form a split column unit. The four split column units are combined in two rows and two columns to form an integral column. The segmental prefabricated reinforced concrete columns in each split column unit are separated from each other by rubber cushions. Under the earthquake, the prefabricated reinforced concrete columns of each segment are freely opened and closed at the rubber cushion. The mutual staggering of the seams is beneficial to the horizontal shear resistance of the members. The invention is installed in the key part of the underground structure to reduce the damage of the underground structure under the action of earthquake.
Description
technical field [0001] The invention relates to the construction field of underground structure engineering, in particular to a segmental split column used for prefabricated staggered seam assembly for underground structures, and belongs to the field of anti-seismic technology of prefabricated subway stations. Background technique [0002] In recent years, with the continuous advancement of the urbanization process in various countries around the world, scholars at home and abroad have gradually realized that the development and utilization of underground space will become an important development direction. Underground structures have been more and more widely used in various fields such as urban construction, transportation, national defense projects, and water conservancy projects, such as railway tunnels, subway projects, underground shopping malls, and air defense projects. Practice shows that the 21st century is the century of underground space development and utilizat...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): E02D29/045
CPCE02D29/045
Inventor 许紫刚许成顺汪洋筱珊韩润波杜修力
Owner BEIJING UNIV OF TECH