Out-of-plane reinforcing device for section conversion position of semi-filled steel tube concrete latticed column

By designing an off-surface reinforcement device for the cross-section conversion of semi-filled steel pipe concrete lattice columns, the steel pipe stress is evenly distributed by cross-dividing plates and reinforced angle steel, and filling concrete with the bottom lift method, the problem of explosive pipes of high-rise steel pipe concrete columns is solved, and the stability and seismic resistance of the column are improved.

CN222701576UActive Publication Date: 2025-04-01CHINA NEW ERA INT ENG CORP +1
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Patent Information

Application Number
CN202420786718.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-16
Publication Date
2025-04-01
Estimated Expiration
2034-04-16

AI Technical Summary

Technical Problem

When the height of the concrete column of the steel pipe is too high, the concrete pouring method of bottom lifting can easily lead to excessive pressure of the bottom steel pipe, causing pipe burst.

Method used

A semi-filled steel pipe concrete lattice column cross-section conversion device is designed, including left and right separated limb steel pipes, reinforced angle steel, transverse partitions, small-span and large-span lattice column inclined rod steel pipes, and concrete filling structures. Through the combination of transverse partitions and reinforced angle steel, the stress of the steel pipe is evenly distributed to avoid slippage, and the concrete is filled by bottom hoisting to form a semi-filled structure.

Benefits of technology

The stability and seismic resistance of steel pipe concrete columns are improved, and the stiffness sudden changes caused by cross-sectional conversion can be reduced, which can increase the stable out-of-plane bearing capacity of the lattice column by about 10%.

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Abstract

The utility model relates to an out-of-plane reinforcing device for a section conversion position of a semi-filled steel tube concrete latticed column. The out-of-plane reinforcing device is characterized by comprising a latticed column basic unit, wherein the latticed column basic unit consists of limb column steel tubes (1), reinforcing angle steel (2), a transverse partition plate (3), concrete (10), a small-span latticed column diagonal web member steel tube (5) and a small-span latticed column transverse web member steel tube (6); small-span latticed column diagonal web member steel pipes (5) are connected between the left and right branch column steel pipes (1), the lower end steel pipes of the left and right branch column steel pipes (1) are filled with concrete (4), reinforcing angle steel (2) is arranged on the outer side of a section from the upper ends of the left and right branch column steel pipes (1) to the filled concrete (4), and different structures of the upper section and the lower section are connected through the reinforcing angle steel (2). According to the out-of-plane reinforcing device for the section conversion position of the semi-filled concrete-filled steel tube latticed column, when the height of the concrete-filled steel tube column is too high, the stability and the anti-seismic property of the concrete-filled steel tube column are improved.
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