Novel multibarrel tube-confined concrete pier column

A concrete-filled steel tube and concrete technology, which is applied to piers, columns, pillars, etc., can solve the problems of poor restraint performance and can not ensure the three-dimensional stress state of concrete, achieve high anti-collapse ability, reduce engineering costs, and be economical. Effect

Inactive Publication Date: 2016-06-08
HEBEI UNIV OF TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

It can take advantage of the good confinement performance of circular steel pipes, overcome the disadvantages of poor confinement performance of rectangular steel pipes that cannot ensure t

Method used

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  • Novel multibarrel tube-confined concrete pier column
  • Novel multibarrel tube-confined concrete pier column
  • Novel multibarrel tube-confined concrete pier column

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Embodiment Construction

[0012] The present invention will be described in detail below with reference to the accompanying drawings. The compound concrete-filled steel pipe pier of the present invention is a cross-sectional form of double-circular steel pipes inside a rectangular concrete-filled steel pipe, including two layers of steel pipes inside and outside, the outer steel pipe 1 is a rectangular steel pipe, the inner steel pipe 2 is two round steel pipes, and the steel pipes are filled with concrete 3. Such as figure 1 , 2 Shown is the plan view of the composite steel pipe concrete pier.

[0013] Such as image 3 , 4 It is the elevation view of the composite steel pipe concrete pier structure. Two round steel pipes are symmetrically arranged at both ends of the rectangular steel pipe in the longitudinal direction, which can improve the compression, bending and shear resistance of the pier.

[0014] In the novel composite steel pipe concrete pier column, the outer steel pipe is a rounded rec...

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Abstract

The invention discloses a novel multibarrel tube-confined concrete pier column which adopts a section form of a rectangular concrete-filled steel tube sleeving double circular steel tubes inside, the novel multibarrel tube-confined concrete pier column can have the advantage of good confining performance of circular steel tubes, overcome the defect that a rectangular concrete-filled steel tube poor in confining performance cannot ensure that concrete is in a three-direction stress state, and also have the characteristic of neat and attractive appearance of the rectangular concrete-filled steel tube, which facilitates construction. The pier column provided by the invention has high rigidity, high strength, good seismic performance and simple structure, can greatly lower the cost of structure construction and reduce difficulties in construction, and is suitable for large-diameter columns in bridge piers and buildings, as well as other related high-rising buildings or column components thereof.

Description

technical field [0001] The invention relates to a civil engineering component, in particular to a composite steel tube concrete pier component. Background technique [0002] In modern road, railway, bridge and building structures, piers are the most vulnerable components in the structural system to be damaged by earthquakes. At present, reinforced concrete structures are commonly used in pier columns at home and abroad. Such pier columns have large cross-sectional dimensions, insufficient bending and shear bearing capacity, and poor ductility, which is not conducive to earthquake resistance; on the other hand, steel pier columns are often due to Its local deformation capacity is not enough to cause local buckling, and it is prone to overall instability and local buckling damage in earthquakes, and the price of steel is relatively expensive. It can be seen that both reinforced concrete piers and steel piers have their own shortcomings, and the steel tube concrete structure h...

Claims

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Application Information

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IPC IPC(8): E01D19/02E04C3/34E01D101/24E01D101/30
CPCE01D19/02E01D2101/268E04C3/34
Inventor 张玉芬王富
Owner HEBEI UNIV OF TECH
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