A reinforced steel arrangement structure for strengthening existing building beams and columns by increasing their cross-sections.

By setting triangular prism steel reinforcement structures and closed-loop column stirrups at the beam-column joints of existing buildings, the problems of excessive rebar installation that easily damages the original structure and long construction period in traditional reinforcement methods are solved, achieving efficient and economical reinforcement results and improving seismic performance and overall bearing capacity.

CN224514814UActive Publication Date: 2026-07-17HUALAN DESIGN GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUALAN DESIGN GRP CO LTD
Filing Date
2025-07-29
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In traditional beam and column reinforcement methods using enlarged cross-sections, the stirrups do not meet the specifications, excessive rebar installation can easily damage the original structure, the construction period is long and the efficiency is low, and some structures cannot be reinforced with rebar, making construction complex and the seismic performance insufficient.

Method used

At the beam-column joints of existing buildings, the enlarged cross-section is divided into four areas, and triangular prism steel reinforcement structures are set up. These are connected by closed-loop column stirrups, combined with column longitudinal reinforcement, beam top reinforcement and beam bottom reinforcement to form an integral connection, reducing the number of rebars and enhancing the bond between new and old concrete.

Benefits of technology

Simplify the construction process, reduce rebar installation work, shorten the construction period, improve seismic performance, meet the stirrup spacing requirements of the specifications, reduce costs, and enhance the overall load-bearing capacity of beam-column connections.

✦ Generated by Eureka AI based on patent content.

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Abstract

A reinforced steel reinforcement arrangement for strengthening existing building beams and columns with enlarged cross-sections is disclosed. At the joints between existing columns and lapped four-way existing beams, four areas separated by the existing beams are respectively designated as enlarged cross-section zones for the existing columns. The reinforcement in each enlarged cross-section zone includes a triangular prism steel reinforcement structure composed of three longitudinal column bars and several triangular stirrups. The four triangular prism steel reinforcement structures are connected by several closed-loop column stirrups. This invention solves the problems of traditional methods, such as stirrup placement not meeting specifications, excessive rebar installation easily damaging the original structure, and long construction periods with low efficiency. It improves construction efficiency and seismic performance, achieving the goal of optimized process and reduced construction period for reinforcement construction.
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