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Recycled concrete L-shaped steel tube special-shaped column

A technology of recycled concrete and special-shaped columns, applied in the directions of columns, piers, pillars, etc., can solve the problems of low uniaxial compressive strength, easy occurrence of micro-cracks, affecting popularization and application, etc.

Inactive Publication Date: 2015-01-07
GUANGXI UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, due to the influence of the old mortar attached to the recycled aggregate, compared with ordinary concrete, recycled concrete is more prone to microcracks under uniaxial pressure, and the uniaxial compressive strength of recycled concrete is generally lower than that of ordinary concrete, which affects its promotional application

Method used

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  • Recycled concrete L-shaped steel tube special-shaped column
  • Recycled concrete L-shaped steel tube special-shaped column
  • Recycled concrete L-shaped steel tube special-shaped column

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Embodiment Construction

[0017] Such as Figures 1 to 3 As shown, the recycled concrete L-shaped steel pipe special-shaped column of the present invention includes an L-shaped special-shaped column, and the L-shaped special-shaped column is formed by welding a circular steel pipe 2 and two U-shaped steel channels 1, and the circular steel pipe is used as the corner of the L-shaped special-shaped column The two U-shaped steel channels are used as the two limbs of the L-shaped special-shaped column; ordinary aggregate concrete 3 is poured inside the U-shaped steel channel, and recycled aggregate concrete 5 is poured inside the circular steel pipe; the U-shaped steel channel is welded with shear Bolt 4, the diameter of the circular steel pipe is not less than 1.2 times the width of the U-shaped steel channel.

[0018] Production process

[0019] The U-shaped steel channel is welded by outsourcing steel plates. First, several rows of shear bolt connectors are welded on the steel plate, and then the steel...

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Abstract

The invention discloses a recycled concrete L-shaped steel tube special-shaped column. The special-shaped column is formed by welding a round steel tube and two U-shaped steel tanks, common aggregate concrete is poured into the U-shaped steel tanks, and recycled aggregate concrete is poured into the round steel tube; and anti-shear bolts are welded in the U-shaped steel tanks. Through the adoption of the steel tube with large diameter on the corner of the L-shaped special-shaped column, the recycled concrete is restrained, the force-bearing performance is improved, the torsion capacity is improved, and the bearing capacity and the shock resistance of the recycled concrete restrained by the steel tube are improved, the doubt of people on the poor performance of the recycled concrete is lowered, the recycled concrete can be popularized and applied to the high-rise buildings and the construction waste can be recycled. The recycled concrete L-shaped steel tube special-shaped column disclosed by the invention can be applied to the high-rise buildings and regions with high seismic intensity, and the application range of the recycled concrete is enlarged. Furthermore, the externally coated steel plate and steel tube can be used as templates, so that the templates are saved, the construction is accelerated, and the economic benefit is improved.

Description

technical field [0001] The invention belongs to the technical field of steel and concrete combined structure and mixed structure, and relates to a special-shaped column, in particular to a recycled concrete L-shaped steel pipe special-shaped column. Background technique [0002] The aggregate formed after crushing, cleaning and grading waste concrete blocks is called recycled aggregate; the concrete prepared with recycled aggregate partially or completely replacing natural aggregates such as sand and stone is called recycled aggregate concrete, or recycled concrete for short. The promotion and application of recycled concrete is conducive to the recycling of construction waste and meets the requirements of environmental protection and sustainable development. An important feature of sustainable development is environmental protection and protection of natural resources. Making full use of recycled concrete can not only effectively reduce the amount of construction waste, re...

Claims

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Application Information

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IPC IPC(8): E04C3/36C04B18/16
CPCY02W30/91
Inventor 应敬伟黎力韬孙志超李丽琳张喜德黄远杨涛覃维维
Owner GUANGXI UNIV
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