Principles of reinforcement design for old buildings

1. on the basis of the results of identification

The plan must be analyzed through the comprehensive analysis and testing results, and the reinforcement plan should be selected according to the specific conditions and conditions, so as to enhance the integrity of the building and improve the stress status of the members, so as to strengthen the whole building, reinforce the section or reinforce the components.

2. elimination of adverse influence factors

For the layout of reinforcement members, whether or not new members are added, we should reduce or even eliminate the overall adverse factors, and prevent structural stiffness or strength abrupt changes due to local reinforcement.

3. ensure that the reinforcement is reliable

The connection between the new components and the original components must be firm and reliable, and there should be a reliable foundation, such as the new aseismic wall, column and other vertical components.

4. strength improvement of material

If the material type of the reinforced component is in accordance with the original structure, the strength grade must not be lower than the actual strength grade of the original structure material.

5. dismantling redundant hidden danger components

Do not meet the requirements of the appraisal firm removed parapet, and non structural components Menlian roof chimney etc. there is a big security risk, must be retained to try to reduce the height and the use of reliable reinforcement measures.