Reinforcing system for reinforcing existing masonry building through outer door type rigid frame and construction method

Abstract

The invention discloses a reinforcing system for reinforcing an existing masonry building through an outer door type rigid frame and a construction method, and belongs to the technical field of reinforcing of existing masonry buildings. The system comprises reinforced concrete door type rigid frame columns, door type rigid frame beams and inhaul cable components. The reinforced concrete door typerigid frame columns are arranged on the outer side of an original outer longitudinal wall in the direction of an original transverse wall, extend to a roof from bottom to top and are connected with original balcony cantilever beams through longitudinal anchor bars. The door type rigid frame beams are arranged at the tops of the reinforced concrete door type rigid frame columns in the direction ofthe original transverse wall. The inhaul cable components penetrate through the original transverse wall on the lower portion of an original floor slab, and the two ends of each inhaul cable componentpenetrate through the corresponding reinforced concrete door type rigid frame column and are anchored. According to the reinforcing system, the lateral stiffness and the seismic bearing capacity of the structure are improved while the building area is not increased and the self weight is not increased basically, and part of the seismic action and part of the vertical load borne by the main structure are transmitted to the reinforced concrete door type rigid frame structure.

Description

technical field [0001] The invention relates to the technical field of reinforcement of existing masonry buildings, in particular to a reinforcement system and a construction method for reinforcing existing masonry buildings with a portal-type rigid frame. Background technique [0002] Due to its low cost, masonry structures are widely used in my country. Due to the long history of construction and low design requirements, there are many problems such as low material strength, poor structural integrity, and seismic capacity that cannot meet the requirements of seismic identification. Reinforcement treatment is urgently needed. [0003] Traditional seismic strengthening methods for masonry structures include shotcrete reinforcement, slab wall reinforcement, reinforced mesh mortar surface reinforcement, external seismic transverse wall reinforcement, and external cast-in-place concrete ring beam-constructive column method. The slab wall reinforcement method is to remove the pl...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a reinforcement system and construction method for strengthening existing masonry buildings with a portal frame, so as to solve the limitations of traditional reinforcement methods, including many wet operations, home reinforcement, earthquake isolation reinforcement, Pile driving inside and around the building, and it is necessary to carry out soft connection transformation of building water, electricity and gas pipelines, and suspension transformation of elevators and stairs. The amount of pile foundation construction and earthwork excavation is large, the comprehensive transformation cost is high, and the disturbance is large; fiber-reinforced composite materials The reinforcement method needs to polish the external wall surface, which causes environmental pollution, and the project cost is high; the steel strand-polymer mortar reinforcement method has high requirements for structural adhesives, and the reinforcement effect depends on the bonding effect, and the cost is high

Images