The connections are essential in conventional structures and when it comes to earthquake-resistant structures, even more so. The strength of a connection must be much higher than that of the structural member since the latter is required to be ductile.
Essencial connections in convencional structures. Ry and Rt Values for Steel and Steel Reinforcement Materials.
The requirements of Technical Specifications of a project – where a ductility-based design is contemplated – must be well-elaborated, adapted to the level of quality required.
The weakest element of the brace connections must allow the diagonal to easily reach its maximum capacity allowing rotation in the direction perpendicular to its plane.
The beam-to-column connection is decisive for the structure – the transfer is made by an orthogonal shear mechanism in the common rectangle.
In MF systems, rigidity in the bases of the columns is very important, since it influences the displacements and the buckling effective length.
About the author
Civil Engineer, Phd.
Chief Technical Engineer Steel Structures in SENER Ingeniería y Sistemas. Lecturer and author of the book Naves Industriales con Acero and several articles. He has an outstanding track record as a professor at the Escuela Técnica Superior de Ingenieros de Caminos, Canales y Puentes de la Universitat Politècnica de Catalunya (UPC).
Director of the Global Master’s in Structural Projects at Zigurat Global Institute of Technology.