This study proposes a new tension member with buckling-free function using carbon fiber reinforced polymer for the seismic bracing system. Firstly, concept of composite brace; partially fibred brace, is introduced. Secondly, material strength brace molded by modified pultrusion investigated. Finally, cyclic loading tests to simulate are conducted. As result, it was demonstrated that system can ...

Abstract—Nowadays, energy dissipation devices are commonly used in structures. High rate of energy absorption during earthquakes is the benefit of using such devices, which results in damage reduction of structural elements, specifically columns. The hysteretic damping capacity of energy dissipation devices is the key point that it may adversely make analysis and design process complicated. Thi...

A structural soundness monitoring system for building steel structures is effective a quick inspection just after large earthquakes. damage-controlled structure can be monitored effectively because damage strictly concentrated in energy-absorbed members, and that, this case, the physical quantity suitable displacements of those energy absorbed members. Buckling-restrained braces (also, BRB usin...

A case study of retrofitting a 20-story pre-Northridge steel moment-frame building is presented. Twelve retrofit 4 schemes are developed with varying degrees of intervention. Three retrofitting techniques are considered: up5 grading the brittle beam-to-column moment resisting connections, and implementing either conventional or 6 buckling-restrained brace elements within the existing moment-fra...

The equivalent force control (EFC) method replaces numerical iteration with a feedback control strategy to solve the nonlinear equations of motion in pseudodynamic and real-time substructure tests (RST) using an implicit integration method. The EFC method and its further development with an energy conserving integration method are presented in this paper. The effectiveness and accuracy of the E...

Compared with traditional buckling-restrained brace (BRB), the steel-angle-assembled (SAA-BRB) is an innovative BRB light-weight, accurate control of geometrical dimensions, easy installation, and convenient disassembly. The SAA-BRB comprises external restraining system a cruciform-sectional inner core. Four steel angles assemble connection high-strength bolts, spacers are installed between cor...