Selection method and anti-seismic cable system for anti-seismic cables used in masonry columns of ancient buildings

Abstract

The invention relates to the technical field of building construction, and discloses a selection method and an anti-seismic cable system for masonry columns of ancient buildings. By first selecting the cables according to the design experience, and then establishing a three-dimensional solid discrete element analysis model of the masonry column including the cables and solving it with the finite element method, the required cross-sectional area of ​​the cables placed on the top of the masonry columns can be judged And whether the value of the prestress that should be loaded is up to standard. It fills the gap in this field, enabling the cables to strengthen the seismic capacity of the masonry column while retaining the ductility of the masonry column. It can be applied to the reinforcement of ancient buildings and can be reinforced under the premise of minimal intervention and reversible principles of building repair and protection.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a method for selecting anti-seismic cables used for masonry columns of ancient buildings and an anti-seismic cable system. Background technique [0002] Reinforcement of buildings with prestressed cables is an emerging reinforcement scheme, which is especially suitable for ancient buildings. [0003] At present, the reinforcement of masonry ancient buildings in my country is mainly carried out by structural reinforcement, and reinforcement devices are embedded in the building body to reinforce the building. This method has serious flaws. Although it can enhance the safety performance of ancient buildings under normal loads and small earthquakes, it limits its inherent energy consumption capacity in abnormal natural disasters, such as major earthquakes. In the earthquakes, there were cases where the earthquake damage increased after the ancient buildings were reinfo...

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Problems solved by technology

However, the applied prestress value needs to be strictly calculated. If the prestress value is not selected properly, not only the strengthening effect will not be achieved, but also the building body may be damaged.

[0005] However, the current calculation method of the prestress applied by the prestressed cables is aimed at reinforced concrete, which needs to be calculated according to the number and type of steel bars, and there is no calculation method for masonry structures

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