Stress testing typically refers to the technical method of monitoring stress changes in structural components during the construction process of buildings and structures, such as steel structure installation, unloading, modification, reinforcement, and concrete pouring. This involves using monitoring equipment to detect stress variations in the loaded structures. An alarm is triggered when the monitored values approach the control values, ensuring the safety of the construction process and also verifying the rationality of the construction procedures.

Purpose of Stress Test

Purpose of Static Stress-Strain Test

1. Obtain the stress-strain distribution law and stress concentration conditions of structures or components.

2. Inspect the strength reserve of structures or components.

3. Validate the rationality of structural or component design.

Dynamic Stress-Strain Test Purpose

1. Determine the law of dynamic strain variation over time, conduct a spectral analysis, and study the strength and stiffness of structures or components based on statistical characteristics.

2. Validate the rationality of structural or component design.

Method of Stress Testing

The primary testing methods currently in use include electrical testing, fiber Bragg grating, and vibration wire strain measurement.