Tie rod

It is any rod or bar-shaped structural member designed to prevent the separation of two parts, as in a vehicle.

In general, because the ratio of the typical tie rod's length to its cross section is usually very large, it would buckle under the action of compressive forces.

An infamous structural failure involving tie rods is the Hyatt Regency walkway collapse in Kansas City, Missouri, on July 17, 1981.

The hotel had a large atrium with three walkways crossing it suspended from tie rods.

According to this model in linear elasticity, the application of a load compressing the square results in a deformation where the tie rods maintain their conjugate relations.