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Masonry structure building group safety assessment method based on geometry and performance similarity

A technology of safety assessment and masonry structure, applied in the direction of instruments, data processing applications, resources, etc., can solve the problems of long time-consuming, inapplicable building group safety assessment, long detection and appraisal time, etc.

Pending Publication Date: 2021-10-15
ARCHITECTURAL DESIGN RES INST OF GUANGDONG PROVINCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the inspection and appraisal takes a long time, and detailed inspection of the house is required on site, and the results can be obtained only after careful calculation and analysis based on the inspection data. The process is relatively redundant and time-consuming, and the appraisal method is not suitable for a large number of buildings security assessment

Method used

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  • Masonry structure building group safety assessment method based on geometry and performance similarity
  • Masonry structure building group safety assessment method based on geometry and performance similarity
  • Masonry structure building group safety assessment method based on geometry and performance similarity

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0086] The 7#, 8#, 9# and 10# masonry structure houses for reliability appraisal of a building group are taken as examples. Among them, buildings 7#, 8#, 9# and 10# are rated as grade IV in reliability because the bearing capacity of the upper load-bearing structure does not meet the requirements. The 7# house is regarded as a known building, and the 8#, 9# and 10# houses are regarded as unknown buildings, and the similarity index is scored according to Table 5, and the scoring results are shown in Table 6 below.

[0087] Table 6 Building similarity calculation case 1

[0088]

[0089] Through the calculation of similarity, it is found that the Pearson similarity of buildings 7#, 8#, 9#, and 10# are all greater than 95%, which can be considered as similar buildings with similar security. Only 7# buildings can be evaluated for safety. The subsequent repair and reinforcement plans for 7#, 8#, 9#, and 10# can be compiled with reference to the safety assessment results of 7#, ...

Embodiment 2

[0094] Similarly, the 12# east and 12# south masonry structure houses for reliability appraisal of the building group in engineering example 1 are taken as an example. The structure of 12# east building meets the requirements of bearing capacity, and its reliability is grade II. 12# South, because the bearing capacity of the upper load-bearing structure does not meet the requirements, the reliability is rated as IV.

[0095]The 12# east house is regarded as a known building, and the 12# south house is regarded as an unknown building, and the similarity index is scored according to Table 5, and the scoring results are shown in Table 8 below.

[0096] Table 8 Building similarity calculation case 2

[0097] 12# East (known building) Score 12# South (unknown building) Score Era early 80s 1 early 80s 1 purpose of use warehouse 1 dormitory 0 Building height / m 4.5 1 17.5 0 building plan rectangle 1 L-shaped 0 Floors 1...

example 3

[0100] Carry out similarity analysis with another masonry structure building group. 4 buildings in this group of buildings are owing to do not have original blueprint data, and identification level all can't be graded, but can evaluate the similarity degree of these 4 buildings by the method of the present invention. From the information in Table 9 below, it can be seen that buildings 1#, 3# and 4# were all built in the 1980s. Except for the slightly different structural length, width and usage, the rest of the indicators are the same, and finally judged to be similar, so 1# , 3# and 4# houses have similar safety performance, and similar reinforcement methods can be adopted for subsequent renovation and upgrading. The safety performance of 2# building is not similar to that of the other 3 buildings due to cracks found in some parts, and the 2# building needs to be reinforced and reconstructed in the follow-up.

[0101] Table 9 Building similarity calculation case 3

[0102] ...

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Abstract

The invention discloses a masonry structure building group safety assessment method based on geometry and performance similarity, and the method comprises the steps: S1, investigating the following descriptive indexes X1-X12 of buildings in a building group; S2, preliminarily classifying the buildings in the building group according to three descriptive indexes of building use purposes, structural materials and structural systems; S3, typical buildings are selected from all categories after preliminary classification for structural safety detailed evaluation or identification, and building evaluation grades are obtained; S4, taking the building subjected to detailed structural safety evaluation or identification as a known building, and performing similarity comparison on the known building and an unknown building to obtain a classification and normalization score of similarity comparison; S5, calculating Pearson correlation coefficients of the known building and the unknown building; and S6, carrying out safety evaluation on the unknown building, and if the similarity is greater than 95%, considering that the unknown building is similar to the known building in safety condition.

Description

technical field [0001] The invention relates to a safety assessment method for masonry structure buildings based on geometric and performance similarity. Background technique [0002] my country has a complete quality supervision system for newly-built houses, which can ensure the safety of houses that pass the inspection and acceptance. However, neither the owners nor the relevant institutions have data on the safety status of existing houses during the use period, and they have no awareness of regular "health checks" for houses. [0003] Houses built in the 1980s and 1990s have reached the middle of their design service life. Due to the normal aging of houses and inadequate management and maintenance, the safety factor of houses is decreasing year by year, and house safety risks are gradually accumulating over time. Due to the lack of long-term refined monitoring, evaluation and management, a large number of urban and rural building safety issues continue to ferment. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/08
CPCG06Q10/0635G06Q10/06393G06Q50/08
Inventor 焦柯袁辉赖鸿立吴桂广谭丽红王文波彭子祥胡承恩
Owner ARCHITECTURAL DESIGN RES INST OF GUANGDONG PROVINCE