| Project/Area Number |
24760453
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Building structures/materials
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| Research Institution | Kobe University |
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Principal Investigator |
ASADA HAYATO 神戸大学, 工学(系)研究科(研究院), 助教 (70620798)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2013: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2012: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | ブレース接合部 / 耐震設計法 / ガセットプレート / 引張耐力 / 塑性変形能力 / ブレース骨組 / 接合部耐力 / 鋼構造 / ブレース構造 / 接合部 |
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| Research Abstract |
This project aims to develop the seismic design of connections in steel concentrically braced frames and extracted the main aspects to evaluate residual seismic performance of braced frames based on observed damage processes of brace members. First, cyclic loading tests of tension-only-bracing were conducted to evaluate effects of connection details on ultimate strength and plastic deformation capacity of brace members, It is clarified that brace connections should be designed taking into account out-of-plane stiffness of gusset plate since additional bending moment due to the local deformation of gusset plate occurred at net section of brace. Second, Strength of Interface weld of gusset plate connections was studied. Improved stress identification model of interface weld was proposed and is applicable to various gusset plates connected to main frame with various stiffness and strength. Based on the proposed models, Strength can be estimated in good accuracy.
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