Behavior of Roof Deck Diaphragms under Quasistatic Cyclic Loading
| Autor: | Hesham S. Essa, Robert Tremblay, Colin A. Rogers |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Engineering
Cantilever business.industry Mechanical Engineering Building and Construction Structural engineering Welding Dissipation Horizontal plane Diaphragm (structural system) law.invention Deck Mechanics of Materials law General Materials Science business Roof Quasistatic process Civil and Structural Engineering |
| Zdroj: | Journal of Structural Engineering. 129:1658-1666 |
| ISSN: | 1943-541X 0733-9445 |
| DOI: | 10.1061/(asce)0733-9445(2003)129:12(1658) |
| Popis: | A series of 18 large-scale tests was carried out on corrugated cold-formed steel deck diaphragms for single-story buildings to investigate the diaphragm’s ability to function as the main source for absorbing earthquake induced energy through inelastic behavior. Tests were performed using a cantilever type configuration for the test setup, in which the steel deck was laid in a horizontal plane. Diaphragm assemblies made with 0.76 and 0.91 mm thick metal deck sheets and with nine combinations of deck-to-frame and deck-to-deck (side lap) fasteners were tested. For each fastening combination, two tests were conducted: monotonic and quasistatic cyclic. Both the strength and failure modes under quasistatic cyclic loading are different from those under monotonic loading. Test results indicate that diaphragms with welded deck-to-frame fasteners without washers have limited ductility and cannot sustain cyclic loading at relatively large displacement amplitudes. The use of mechanical and welded-with-washer deck-to-frame fasteners enhances the strength, ductility and energy dissipation characteristics of the diaphragm considerably. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|