External-stretching-beam buried column base construction for reducing height of bearing table and construction method

A technology of overhanging beams and column feet, which is applied in the direction of basic structure engineering, columns, pier columns, etc., can solve the problems of large cap height, inconvenient construction, waste, etc., and achieve shortened construction period, reduced construction difficulty, and high cap height. Reduced effect

Pending Publication Date: 2020-01-03
BEIJING GENERAL MUNICIPAL ENG DESIGN & RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] In order to overcome the defects and deficiencies of the above-mentioned technologies, the present invention provides a design and structure based on effectively reducing the height of the cap and transmitting the internal force of the column to the foundation pile. The standard structure requires that the height of the platform is too large, causing unnecessary waste and inconvenient technical problems for construction

Method used

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  • External-stretching-beam buried column base construction for reducing height of bearing table and construction method
  • External-stretching-beam buried column base construction for reducing height of bearing table and construction method
  • External-stretching-beam buried column base construction for reducing height of bearing table and construction method

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Comparison scheme
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Embodiment 1

[0092] The land used for a depot in a certain place is in an irregular rectangle, 950m long from north to south, and 440m wide from east to west; the land area is about 28.01 hectares. The parking and train inspection depot, joint maintenance depot, throat area and surrounding roads in the site adopt an overall sinking scheme of 5.0m. Non-residential buildings such as office or commercial buildings will be developed on top of the depot storage area and throat area. The entire storage area, throat area and access section line are planned to be divided into 10 structural units. Among them, section 3 of the joint maintenance depot, section 4 of the parking train inspection depot, and part of the frame columns of the throat area 5 and 6 adopt steel-steel concrete members, and the throat area 7 adopts steel pipe concrete members. Pillar node. Here is an example of a steel-concrete frame column at a in area 4 of the parking and train inspection depot, see Figure 6(a1), Figure 6(a2)...

Embodiment 2

[0100] The west side of a certain depot area is the throat area, the central part is the joint inspection depot and the application depot (a two-story car depot is developed above the depot); the east and north sides are the turning line, and the south side of the depot is the test line; the east side The living area is between the turning line and the storage area. Residential buildings will be developed on top of the depot reservoir area, and the entire reservoir area and throat area are planned to be divided into 17 structural units. The frame columns of the combined maintenance warehouses A1-1, A1-2, A2-1, A2-2, A3-1, and A3-2 are partly steel concrete members, and the embedded column foot nodes are designed according to the method of the present invention. Here is an example of the steel concrete frame column foot joint at A2-1 area a of the joint maintenance depot, see Figure 7(a1) , 7(a2) ; 1 example of steel concrete frame column foot joint at b in area A2-2, see Fi...

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Abstract

The invention discloses an external-stretching-beam buried column base construction for reducing the height of a bearing table and a construction method. The construction includes the bearing table, aframe column, and base piles, the frame column comprises section steel, the section steel at the root of the frame column is inserted into the bearing table, the base piles are symmetrically arrangedat the lower portion of the bearing table in a dispersed mode with the frame column as the center, the pile top of each base pile penetrates through a cushion layer and is embedded into the bottom ofthe bearing table, an external-stretching steel beam is arranged on the part, buried in the bearing table, of the section steel with the axis of the section steel as the center towards each base column at the periphery, and the cross section of the external-stretching steel beam is in an H or a square-pipe shape; and one end of each external-stretching steel beam is fixedly connected with the section steel on the frame column to form a whole steel component with the section steel, the other end of each external-stretching steel beam extends above the pile head of the corresponding base columnand makes the end of each external-stretching steel beam stretch out of the center of the corresponding base column, and the section steel at the root of the frame column and the external-stretchingsteel beams are supported on the cushion layer at the lower portion through a supporting steel frame at the bottom of the section steel and poured into the bearing table in an overall mode with concrete. The external-stretching-beam buried column base construction can solve the problems of unnecessary waste and inconvenient construction due to the too-large height of a bearing table in the prior art.

Description

technical field [0001] The invention relates to the technical field of building structure design and civil engineering construction, in particular to an outrigger beam-type embedded column foot structure and a construction method for reducing the height of a cap. Background technique [0002] The rational design of embedded column foot joints of composite structural columns or steel structural columns is the key to ensure the safety and reliability of the overall structure. For frame columns of composite structures, the current "Code for Design of Composite Structures" JGJ138 requires that the embedded column feet of steel reinforced concrete columns and rectangular steel pipe concrete columns should not be less than 2.0 times the section height of the column-shaped steel; for the embedded column foot of the circular steel tube concrete column, the embedded depth of the section steel in the foundation should not be less than 2.5 times the section height of the column-shaped ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D27/42E02D27/14E04C3/36
CPCE02D27/14E02D27/42E04C3/36
Inventor 李宗凯张伯英温雅歌巩同川刘金栓田磊朗晴鲁广周牧杜军杰
Owner BEIJING GENERAL MUNICIPAL ENG DESIGN & RES INST
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