What is the basic principle of building structure reinforcement and remodeling

In the building reinforcement industry, building structure reinforcement remodeling has been a very common project. Nowadays, with the growth of the building with the use of time, there will be some problems, the use of the building structure of the function can not meet the needs of the building structure should be reinforced to do remodeling treatment. In the building reinforcement remodeling, there are some principles need to comply with, so as to ensure the effect of building reinforcement remodeling. The following reinforcement home for everyone to introduce the four principles of building structure reinforcement remodeling.

1. Principle of identification before reinforcement

Before the reinforcement of the building structure should be the first safety assessment of the building, a comprehensive understanding of the structural design of the building structure is in line with the structural design codes and standards, structural measures, the performance of various materials to meet the "building seismic monitoring standards" of the minimum requirements of the building for a level of identification, if the first level of identification does not meet the second level of identification needs to be carried out. The first level of identification of the building, if the first level of identification is not satisfied, then the second level of identification is required.

The actual strength value of the structural components should be used in the second level appraisal, and according to the results of the calculation of the building's load-bearing capacity to determine the safety of the building, and take the necessary reinforcement measures for the components with potential safety hazards, so as to improve the reliability of the building. Identification is the premise of structural components for reinforcement, only a comprehensive understanding of the structure, the structural components and even the building as a whole have a full grasp, in order to better choose the reinforcement program, to achieve good reinforcement results.

2. Structural system of the overall effect of the principle

In the design of reinforcement should be comprehensive consideration of the impact of a single component on the overall structure, can not be confined to a single component after reinforcement of their own safety, while ignoring the impact of its other components.

When the building is reinforced, not only for the dangerous components of the reinforcement treatment, should also be considered when the components of the reinforcement of its effect on the whole, such as a - building A - layer of columns for reinforcement, its reinforcement may lead to a change in the characteristics of the entire floor, easy to weak layer, affecting the seismic capacity of the entire floor, resulting in a chain of damage.

3. Principle of bearing capacity calculation

When calculating the structural bearing capacity, the calculation should be based on the actual force, section size and actual strength of the members. The actual cross-section size should be used to fully consider the adverse effects of various defects, in the bearing capacity calculation for the original components should be based on the actual strength of the material to calculate the bearing capacity, for the new part of the new part should be considered for the stress hysteresis phenomenon and the synergistic capacity of the old and new parts. At the same time, in the new part of the calculation of its strength value should be multiplied by a certain reduction factor and consider the component eccentric force, section deformation and other adverse effects.

4. Optimization principle of reinforcement program

The optimization principle of reinforcement program mainly refers to the construction environment of the site, the reliability of the reinforcement method, the economic reasonableness of the reinforcement method, and the economic benefits generated by the solid. Before selecting the reinforcement program should be fully cognizant of the force characteristics of the structure before reinforcement and the force characteristics of the reinforcement, clear overall structural force transmission path, to ensure that the original components of the reinforcement and the reinforcement part of the reliable connection, and at the same time should take into account the level of construction technology, try to shorten the construction time, reduce construction costs.

With the development of society, the use of the building requirements are also higher and higher, for the use of functionality to meet the current stage of the requirements of the building is the need to do reinforced transformation processing. In the building structure reinforcement remodeling, the need to comply with the principles of reinforcement remodeling, only in this way can ensure the quality of building reinforcement remodeling, improve the effect of building reinforcement remodeling.