Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
|
Steel and Composite Structures Volume 42, Number 6, March25 2022 , pages 827-841 DOI: https://doi.org/10.12989/scs.2022.42.6.827 |
|
|
|
Cyclic loading behavior of high-strength steel framed-tube structures with replaceable shear links constructed using Q355 structural steel |
||
Yan Guo, Ming Lian, Hao Zhang and Qianqian Cheng
|
||
| Abstract | ||
| The rotation capacities of the plastic hinges located at beam-ends are significantly reduced in traditional steel framed-tube structures (SFTSs) because of the small span-to-depth ratios of the deep beams, leading to the low ductility and energy dissipation capacities of the SFTSs. High-strength steel framed-tube structures with replaceable shear links (HSSFTSRSLs) are proposed to address this issue. A replaceable shear link is located at the mid-span of a deep spandrel beam to act as a ductile fuse to dissipate the seismic energy in HSSFTS-RSLs. A 2/3-scaled HSSFTS-RSL specimen with a shear link fabricated of high-strength low-alloy Q355 structural steel was created, and a cyclic loading test was performed to study the hysteresis behaviors of this specimen. The test results were compared to the specimens with soft steel shear links in previous studies to investigate the feasibility of using high-strength low-alloy steel for shear links in HSSFTS-RSLs. The effects of link web stiffener spaces on the cyclic performance of the HSSFTS-RSLs with Q355 steel shear links were investigated based on the nonlinear numerical analysis. The test results indicate that the specimen with a Q355 steel shear link exhibited a reliable and stable seismic performance. If the maximum interstory drift of HSSFTS-RSL is designed lower than 2% under earthquakes, the HSSFTS-RSLs with Q355 steel shear links can have similar seismic performance to the structures with soft steel shear links, even though these shear links have similar shear and flexural strength. For the Q355 steel shear links with web height-tothickness ratios higher than 30.7 in HSSFTS-RSLs, it is suggested that the maximum intermediate web stiffener space is decreased by 15% from the allowable space for the shear link in AISC341-16 due to the analytical results. | ||
| Key Words | ||
| cyclic behaviors; high-strength low-alloy steel; high strength steel; numerical analysis; steel framed-tube structures | ||
| Address | ||
| Yan Guo: School of Civil and Geodesy Engineering, Shaanxi College of Communication Technology, Xi'an 710018, China Ming Lian: 1) School of Civil Engineering, Xi'an University of Architecture & Technology, Xian 710055, China 2) Key Lab of Structural Engineering and Earthquake Resistance, Ministry of Education (XAUAT), Xi'an 710055, China Hao Zhang: School of Civil Engineering, Xi'an University of Architecture & Technology, Xian 710055, China Qianqian Cheng:School of Civil Engineering, Xi'an University of Architecture & Technology, Xian 710055, China | ||