An existing stone wall seismic reinforcement structure and method thereof

Abstract

The invention relate to an existing stone wall seismic reinforcement structure and method. The method comprises the steps that steel angles are taken to be cut to be made into L-shaped pin keys, and two L-shaped pin keys are taken to be welded into a T-shaped pin key; the L-shaped pin keys and the T-shaped pin keys are embedded into paving seams intersecting transversely and longitudinally in the stone wall; reinforcement steel bars are arranged at single-faced or double-faced horizontal paving seams of the stone wall, the reinforcement steel bars are tensioned, and the two ends of the reinforcement steel bars and the L-shaped pin keys or the T-shaped pin keys are welded; the paving seams in the stone wall are filled with mortar. The adopted pin keys are easy to manufacture and low in price, upper and lower brickworks are tied through the reinforcement steel bars and the pin keys to form a whole so as to resist shearing force jointly, and the anti-seismic performance of the wall body is improved; meanwhile, the existing stone wall seismic reinforcement structure can be disassembled at any time, damage to an original structure is small, the reinforcement steel bars can be embedded into the paving seams, the influence on the stone structure appearance is small, and the higher application value is achieved for ancient architecture seismic reinforcement.

Description

technical field [0001] The invention relates to an existing stone wall anti-seismic reinforcement structure and a method thereof. Background technique [0002] Stone structure buildings spread all over the coastal areas of southern Fujian. They are one of the main forms of urban residences and account for a large proportion of the ancient buildings in Fujian. They have strong local architectural characteristics and a long history. At present, some existing ancient stone structures are built with gasket dry masonry. The integrity and earthquake resistance of dry masonry houses are extremely poor. Therefore, improving the seismic performance of stone structures is an important issue that urgently needs to be solved for existing ancient buildings. [0003] For the dry masonry structure, since there is no mortar filling in the joints, the upper and lower blocks are prone to slide under the action of earthquakes, which is the weak link of the structure. In this regard, scholar...

AI Technical Summary

Problems solved by technology

However, these reinforcement methods have the following disadvantages: (1) The size, interface properties and masonry methods of stone masonry are significantly different from those of traditional brick masonry, and there are obvious limitations in using brick masonry reinforcement methods; (2) It is difficult to maintain stone masonry. The original rustic and beautiful appearance of the structure

However, when an earthquake occurs, under the action of horizontal and vertical alternating vibrations, the connection between blocks is easily damaged, resulting in loose blocks and wall damage.

In addition, the chemical components contained in the polymer mortar are easy to damage the building materials, so it is not suitable for use in the anti-seismic reinforcement of ancient buildings

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