| Project/Area Number |
06650621
|
|---|
| Research Category |
Grant-in-Aid for General Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Building structures/materials
|
|---|
| Research Institution | Shinshu University |
|---|
Principal Investigator |
NAKAGOMI Tadao Shinshu University, Faculty of Engineering, Prof., 工学部, 教授 (60111671)
|
|---|
| Project Period (FY) |
1994 – 1995
|
| Project Status |
Completed (Fiscal Year 1995)
|
| Budget Amount *help |
¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 1995: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1994: ¥1,700,000 (Direct Cost: ¥1,700,000)
|
|---|
| Keywords | nonlinear fracture mechanics / non-scallop method / J integraiion / safety to the earthquake / toughness of steel / charpy value / J積分 / シャルピー値 |
|---|
| Research Abstract |
Scallops of the beam-web at welded beam-to-column connections of steel frames bring partial loss of cross sections at the part subjected to large bending moments when a severe earthquake occurs. Therefore, they are not desirable from the point of view of mechanical behavior.
This report presents the bending tests performed using specimens of beam-to-column joints on shop assembling carried out to investigate the effect of non-scallop methods and beam-scallops on fracture behavior, ultimate strength and deformation capacity of the steel beam-ends. It is concluded that a beam without scallops has earlier brittle fracture and higher strength, and larger deformation capacity than a conventional beam with scallops. Finally, it recommends the details of the end of the beam of the non-scallop method of construction with the cost performance being based from the view point of the design, the building.
|
