Steel Rod Energy Dissipating Element Design and Performance Research of Array Type Metal Damper(PDF)
《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]
- Issue:
- 2018年05期
- Page:
- 225-232
- Research Field:
- Publishing date:
Info
- Title:
- Steel Rod Energy Dissipating Element Design and Performance Research of Array Type Metal Damper
- Author(s):
- SUN Wei; FU Teng-yan; JU Li-hong; SUN Li; MA Jing-yue
- School of Civil Engineering, Shenyang Jianzhu University
- Keywords:
- array type metal damper; steel rod energy dissipation element; numerical simulation; orthogonal test; energy dissipation coefficient
- PACS:
- -
- DOI:
- -
- Abstract:
- 5 kinds of steel rod energy dissipating elements with Q235 steel were designed, which included 1 kind of equal cross-section element RED A and 4 kinds of variable cross-section elements RED B, RED C, RED D and RED E. Firstly, the methods of numerical simulation and orthogonal test were used to analyze the influence of elements’ geometric parameters such as diameter d0, slenderness ratio δ, anchorage length in the plate lm, internal shrinkage diameter d1, extension length of anchorage section l1 and middle equal cross-section length l2 on their energy dissipation performances. Secondly, the influence of steel mechanics property parameters on energy dissipation performances of elements was also researched. The energy dissipation performances of elements with low yield point steel LYP100, LYP160 and LYP225 materials were compared with those of Q235 steel element. The results show that the energy dissipation performance of RED D is the best among all kinds of elements. When its geometric parameters are diameter d0=40 mm, slenderness ratio δ=4, internal shrinkage diameter d1=20 mm, and middle equal cross-section length l2=20 mm, its energy dissipation performance is optimal, the energy dissipation coefficient is 2.71. When the material of energy dissipation elements is low yield point steel, the energy dissipation performance is increased further. When RED D is made with LYP160 steel and optimal geometrical parameters, the energy dissipation coefficient is as high as 3.12.
Last Update: 2018-09-03