Saddle surface building damage identification method based on digitized modal coordinate
A Technology of Damage Identification and Coordinate Surface
Inactive Publication Date: 2018-02-16
WUHAN UNIV
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Problems solved by technology
The existing monitoring method using sensors is difficult to accurately judge the degree of disease of the saddle building, and the physical parameters to be measured are not easy to determine, and there is a lack of effective monitoring standards
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[0016] In order to facilitate those of ordinary skill in the art to understand and implement the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the implementation examples described here are only for illustration and explanation of the present invention, and are not intended to limit this invention.
[0017] please see figure 1 and figure 2 , a kind of saddle surface building damage recognition method based on digitized modal coordinates provided by the present invention comprises the following steps:
[0018] Step 1: Carry out grid division on the basic coordinate plane;
[0019] First, the mode of the saddle building is taken as the basic coordinate plane, which is the basic inherent state of the structure. Then, divide the basic coordinate plane into m parts in the horizontal direction; divide it into n layers in the height direction; at this t...
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The invention discloses a saddle surface building damage identification method based on a digitized modal coordinate. The method comprises the following steps that: firstly, carrying out mesh generation on a basic coordinate surface to obtain a plurality of curved surfaces; then, establishing a modal equation, calculating the curvature modal of the basic coordinate surface, and measuring the coordinate surface with a damaged structure; and finally, defining a damage degree index. By use of the method, the curvature change of the basic coordinate surface before and after a building is damaged is used for judging the damage degree of a curved surface building, and a damaged position can be accurately positioned. By use of the method, the local damage situation of the structure can be effectively reflected, the method can be used for researching the change situations of physical parameters, including the stress, the rigidity and the like of an area near the damage of the structure, so asto finish contents which can not be finished by other types of monitoring methods. All key points on the building can be simultaneously monitored, monitoring efficiency is improved, and cost is saved.
Description
technical field [0001] The invention belongs to the technical field of building damage recognition, and in particular relates to a saddle surface building damage recognition method based on digitized modal coordinates. Background technique [0002] The saddle building is favored for its unique active space, beautiful curved surface, flexible layout, and reasonable force. Because the structure of the saddle surface will accumulate micro damages during long-term service, these micro damages will evolve into macro damages that endanger the reliable operation and safety of the overall structure. The existing monitoring method using sensors is difficult to accurately judge the degree of disease of the saddle building, and the physical parameters to be measured are not easy to determine, and there is a lack of effective monitoring standards. Contents of the invention [0003] In order to solve the above-mentioned technical problems, the present invention provides a saddle surfa...
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IPC IPC(8): G06T7/00G06T17/20
Inventor 王若林朱道佩桑农
Owner WUHAN UNIV