Device for cyclic testing with axial load and bending on walls and structural connections

Higher moment-shear ratio: Unlike other systems that apply the load at the height of the specimen, this technology allows loads to be applied at a greater height. This increases the ratio between the applied moment and shear, improving the simulation of real-world conditions during an earthquake and more accurately reflecting the behavior of structural elements. This higher ratio is crucial for accurately representing seismic performance, which is fundamental for optimizing earthquake-resistant design. More realistic simulation: The simultaneous and controlled application of axial loads and additional bending through a pair of vertical loads improves the replication of the loading conditions that structural elements will face during an earthquake. This allows for more accurate results on how walls and connections behave under cyclic stresses and bending moments, which are characteristic of seismic events. Scalability and full-scale testing: This technology facilitates full-scale testing, eliminating the need for reduced-scale tests due to technical limitations. This is a significant advantage, as full-scale tests provide more accurate and direct information about the structural behavior of the tested elements. Reduced space requirements and costs: By eliminating the need for large reinforced concrete structures or prefabricated steel frames, such as those used in many laboratories, this technology significantly reduces construction costs and the space required for testing. This allows laboratories with more limited resources to perform complex tests without compromising the quality of the results. Flexibility in test signals: Tests can be performed with monotonic or cyclic signals, adjusting to different frequency content (from 0 Hz to 0.05 Hz) and amplitudes, providing flexibility to adapt to different testing protocols. This versatility allows for the simulation of various seismic scenarios and improves the analysis of structural behavior under different loading conditions. Taken together, these advantages position this technology as an innovative and more efficient tool for seismic assessment and structural design, enabling more accurate and relevant results compared to conventional systems.