A method for dynamic testing and bearing capacity evaluation of high-rise and high-rise structures

Abstract

The invention discloses a method for evaluating the bearing capacity of high-rise and high-rise structures through dynamic detection. Based on the dynamic detection technology, the evaluation of the load-carrying capacity of high-rise and high-rise structures is realized by combining the parameter identification method and the finite element correction technology. The method includes the following steps: designing high-rise and high-rise structures According to the construction acceptance data, the finite element analysis of model modification can be carried out to preliminarily determine the mode shape parameters and frequency parameters of high-rise and high-rise structures, and to preliminarily determine the areas with significant mode response and stress deformation hot spots of high-rise and high-rise structures; Towering structure power input vibration pickup setup. The invention has the advantages of solving the limitations of the evaluation of the load-carrying capacity of high-rise and towering structures based on the static detection technology, strong operability, less time-consuming evaluation process, lower evaluation cost, and wider application range.

Description

technical field [0001] The invention relates to a technical method for engineering detection and evaluation, and more specifically relates to a method for evaluating the dynamic detection and bearing capacity of high-rise and high-rise structures. Background technique [0002] Due to carbonation of concrete, corrosion of steel bars, repeated and increased wind loads, traffic loads, and lack of daily maintenance, high-rise and high-rise structures will suffer from various structural damages after a period of service, resulting in reduced structural bearing capacity and operating conditions that cannot meet the specifications Require. However, direct research on existing high-rise and high-rise structures affects normal operations and is time-consuming and labor-intensive. Numerical simulation analysis in the studio can not only get rid of the inconvenience of the actual complex situation, reduce costs and improve efficiency, but also can repeatedly study the damage mechanism...

AI Technical Summary

Problems solved by technology

The static evaluation method mainly tests the static parameters of high-rise and high-rise structures, and evaluates the bearing capacity of high-rise and high-rise structures from components to the whole. , the application of the static evaluation method in the evaluation of the bearing capacity of high-rise and high-rise structures has significant limitations

The dynamic evaluation method is mainly to detect the dynamic parameters of high-rise and high-rise structures, and indirectly obtain the performance and bearing capacity of the structure. However, due to the variability of dynamic parameters of high-rise and high-rise structures, there is no complete set of effective high-rise and high-rise structures based on dynamic detection technology. High-rise structure bearing capacity evaluation method, which greatly limits the application of dynamic evaluation methods in the evaluation of high-rise and high-rise structure bearing capacity

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