Structural displacement response estimation method and device based on inclination angle monitoring data

Abstract

The invention relates to a structural displacement response estimation method and device based on inclination angle monitoring data. The structural displacement response estimation method based on inclination angle monitoring data comprises the following steps: constructing a slope at a node, and establishing a relationship between the slope and an inclination angle at the node; constructing a section node position curve mathematical model; determining a section node position curve according to the relationship between the slope and the inclination angle, the relationship between the slope andthe curve and the monitoring data, wherein the monitoring data comprises an inclination angle at an actual measurement point, the actually measured points are nodes which are provided with inclinometers in the divided sections of the space steel structure and can obtain inclination angle data; and determining the static displacement of the space steel structure according to the section node position curve.

Description

technical field [0001] The present application relates to the technical field of monitoring data processing of civil engineering structures, in particular to a method and device for estimating structural displacement responses based on inclination monitoring data. Background technique [0002] Due to the particularity of stress and the complexity of the structure, large-span space steel structures are prone to safety accidents during the construction process, and inevitably cause performance degradation during use, and even cause accidents such as structural collapse. Structural health monitoring technology determines the current health status of the structure by arranging sensors at key parts of the structure, collecting sensor data, and obtaining response information in the real environment of the structure. Among the commonly used monitoring items, displacement monitoring is a relatively intuitive monitoring method, because the actual changes of the structure during the c...

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Problems solved by technology

When the data obtained by deformation monitoring is small, the total station cannot be visually aimed due to the elevation angle factor

GPS measurement technology can better monitor the deformation of structures for a long time, but it is difficult to monitor high-frequency vibrations due to its low space-time sampling rate, and is affected by various non-modeling system errors, such as multipath errors, residual atmospheric delay errors, observation Noise, etc., the accuracy of dynamic measurement is difficult to guarantee, and for large-span space steel structures, when deformation monitoring is carried out through GPS, a large number of deformation measurement points need to be arranged, and the measurement cost is high

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