Abstract
High strength steel with the nominal yield strength higher than 460 MPa has been increasingly
applied in many construction projects. However, there are only limited research works on global stability behavior
of high strength structural steel beams currently. This paper investigates the stability behavior of welded
H-shaped section beams fabricated from Q460GJ structural steel plates. In this study, a series of experimental
tests, numerical simulations and parametric studies have been conducted. To examine the global
stability behavior of Q460GJ structural steel unrestrained beams under 3-point bending, a total of eight doubly
symmetric welded H-section beams with different lengths and different sectional dimensions were tested
under a concentrated force at middle-span. It was found that the global stability design methods in GB50017-
201X (2012) and EC3 (2005) for rolled sections or equivalent welded sections may be appropriate for
Q460GJ structural steel beams. In addition, the design methods in GB50017-2003 (2003) and the American
code (ANSI/AISC360-10, 2010) may not be conservative for Q460GJ structural steel beams.
applied in many construction projects. However, there are only limited research works on global stability behavior
of high strength structural steel beams currently. This paper investigates the stability behavior of welded
H-shaped section beams fabricated from Q460GJ structural steel plates. In this study, a series of experimental
tests, numerical simulations and parametric studies have been conducted. To examine the global
stability behavior of Q460GJ structural steel unrestrained beams under 3-point bending, a total of eight doubly
symmetric welded H-section beams with different lengths and different sectional dimensions were tested
under a concentrated force at middle-span. It was found that the global stability design methods in GB50017-
201X (2012) and EC3 (2005) for rolled sections or equivalent welded sections may be appropriate for
Q460GJ structural steel beams. In addition, the design methods in GB50017-2003 (2003) and the American
code (ANSI/AISC360-10, 2010) may not be conservative for Q460GJ structural steel beams.
| Original language | English |
|---|---|
| Title of host publication | Mechanics of Structures and Materials XXIV |
| Subtitle of host publication | Proceedings of the 24th Australian Conference on the Mechanics of Structures and Materials |
| Editors | H Hao, C Zhang |
| Place of Publication | London |
| Publisher | CRC Press |
| Pages | 259-263 |
| Number of pages | 5 |
| Volume | 1 |
| ISBN (Print) | 9781138029934 |
| Publication status | Published - 2017 |
| Event | The 24th Australian Conference on the Mechanics of Structures and Materials (ACMSM) - Perth, Australia Duration: 6 Dec 2016 → 9 Dec 2016 |
Conference
| Conference | The 24th Australian Conference on the Mechanics of Structures and Materials (ACMSM) |
|---|---|
| Country/Territory | Australia |
| City | Perth |
| Period | 6/12/16 → 9/12/16 |