High-seismic-resistance light high-intensity reinforced column

A reinforced concrete column, high seismic technology, applied in the direction of columns, piers, pillars, etc., can solve the problem of less research on load-bearing structures, achieve high seismic performance, reduce the weight of the structure, and save time in construction

Inactive Publication Date: 2012-07-11
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, so far, concrete containing light aggregates is mostly used in beams, slabs and other com

Method used

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  • High-seismic-resistance light high-intensity reinforced column
  • High-seismic-resistance light high-intensity reinforced column
  • High-seismic-resistance light high-intensity reinforced column

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0031] Example 1:

[0032] A high-seismic, lightweight, high-strength reinforced concrete column, as attached figure 1 As shown, the cross-section of the column is rectangular, the size is 450mm×450mm, and the column height is 1100mm. It is made by tying steel cages and then pouring concrete; the steel cage is composed of 4 equal cross-section split stirrups, center positioning stirrups and longitudinal reinforcements. The split stirrups are rectangular spiral split stirrups with center positioning. Stirrups are central circular spiral positioning stirrups; the distance between the outer limbs of two adjacent split stirrups is 30mm; the center positioning stirrups are staggered and partially overlapped with the limbs of 4 split stirrups of equal section , 12 longitudinal bars are set on the inner side of each split stirrup, and 3 longitudinal bars are set on the overlapping part of the center positioning stirrup and the split stirrups; the side length of the split stirrups is 190...

Example Embodiment

[0044] Example 2:

[0045] A high-seismic, lightweight, high-strength reinforced concrete column, as attached figure 2 As shown, the cross section of the column is rectangular, the side length is 450 mm, and the column height is 1100 mm. It is made by tying steel cages and then pouring concrete; the steel cages (in the form of reinforcement) are composed of 4 split stirrups of equal cross-section, central positioning stirrups and longitudinal reinforcements. The split stirrups are rectangular spiral splits. Body stirrups, the center positioning stirrup is the center rectangular closed positioning stirrup; the distance between the outer limbs of the two adjacent split stirrups is 35mm, the side length of the split stirrups is 180mm, and the stirrup spacing is 45mm, each A total of 12 longitudinal bars are set on the inner side of the split spiral stirrups; the side length of the center positioning stirrup is 190mm, the spacing between the stirrups is 40mm, and the overlapping par...

Example Embodiment

[0050] Example 3:

[0051] A high-seismic, lightweight, high-strength reinforced concrete column, as attached image 3 As shown, the cross-section of the column is rectangular, the size is 450mm×450mm, and the column height is 1100mm. It is made by tying a steel cage and then pouring concrete; the steel cage is composed of 4 split stirrups of equal section, center positioning stirrups and longitudinal reinforcements. The split stirrups are circular closed split stirrups, and the center The positioning stirrup is a central circular spiral positioning stirrup; the distance between the outer limbs of two adjacent split stirrups is 25mm, the diameter of the split stirrups is 180mm, the spacing between the stirrups is 40mm, and the inside of each split stirrup A total of 8 longitudinal ribs are set; the diameter of the central positioning stirrup is 190mm, the spacing between the stirrups is 50mm, and the overlapping part of the positioning stirrup and the split stirrup is set with 2 ...

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Abstract

The invention relates to a high-seismic-resistance light high-intensity reinforced column and is characterized in that the high-seismic-resistance light high-intensity reinforced column is formed by depositing concrete after a reinforcement cage is assembled, wherein the reinforcement cage comprises four fission stirrups with equal sections, a center positioning stirrup, and longitudinal bards, the space between the external limbs of the two adjacent fission stirrups ranges from 25 mm to 200 mm; the center positioning stirrup is partially overlapped with the stirrup part of each limb of the four fission stirrups with equal sections, a plurality of longitudinal ribs are arranged on the inner sides of the fission stirrups and the positioning stirrup; at least one longitudinal rib is arranged in the overlapping part between the fission stirrup and the positioning stirrup, and the fission stirrup and the positioning stirrup are fixed into a whole; and the weights of the raw materials in the concrete are as follows: 130 kg/m3 to 180 kg/m of water, 160 kg/m3 to 500 kg/ms of cement, 50 kg/m3 to 250 kg/m of mineral admixtures, 100 kg/m3 to 400 kg/m of light aggregates, 300 kg/m3 to 900 kg/m of broken stones, 650 kg/m3 to 850 kg/m of sand, and 4 kg/m3 to 15 kg/m3 of water reducers. The high-seismic-resistance light high-intensity reinforced column has the advantages of high seismic performance, deformability, strong bearing capacity, and lightness.

Description

technical field [0001] The invention relates to the field of concrete buildings, in particular to a high-seismic light-weight high-strength reinforced concrete column. Background technique [0002] The seismic performance of a building mainly depends on the ability of the structure to absorb seismic energy, which is determined by the product of its bearing capacity and deformation capacity. A structure with low bearing capacity but high ductility can absorb more energy. Although it is damaged earlier, it can withstand large deformation and avoid collapse; on the contrary, a brittle structure with high bearing capacity and low deformation capacity , the absorbed energy is limited, and once it encounters an earthquake that exceeds the design level, it is prone to brittle failure and suddenly collapses, which violates the design principle of "a big earthquake will not collapse" in the building code. [0003] The split-column technique is a method in which a full-section column...

Claims

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Application Information

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IPC IPC(8): E04C3/34E04B1/98
Inventor 王发洲吴静胡曙光付军周孝军
Owner WUHAN UNIV OF TECH
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