scholarly journals Erratum: CONTINUOUS COLUMN EFFECTS OF GRAVITY COLUMNS IN U.S. STEEL MOMENT-RESISTING FRAME STRUCTURES [Journal of Structural and Construction Engineering (Transactions of AIJ) Vol. 75 (2010) , No. 650 pp.761-770]

2010 ◽  
Vol 76 (662) ◽  
pp. 720-720
Author(s):  
Hiroyuki TAGAWA ◽  
Gregory MACRAE ◽  
Laura LOWES
Keyword(s):  
Frame Structures ◽  
Construction Engineering ◽  
Moment Resisting Frame ◽  
Moment Resisting ◽  
Steel Moment Resisting Frame

Seismic Simulation of U.S. and Japanese Type Steel Moment-Resisting Frame Structures Using Practical FEM Macro Models

2018 ◽  
Vol 763 ◽  
pp. 557-565
Author(s):  
Hiroyuki Tagawa ◽  
Gregory A. MacRae
Keyword(s):  
The United States ◽  
Frame Structure ◽  
Frame Structures ◽  
Moment Connections ◽  
Type Steel ◽  
Moment Resisting Frame ◽  
Seismic Simulation ◽  
Moment Resisting ◽  
Steel Moment Resisting Frame ◽  
Complete Collapse

Building structures around the world have been designed using various framing methods. In Japan, the two-way moment-resisting frame structure, which is designed as a 3D seismic frame with beams connected to the columns, with moment connections in both directions, is traditionally constructed. In contrast, in the United States and many other countries in high seismic regions, the one-way moment-resisting frame structure, which is designed as separate seismic and gravity frame structure with only a few expensive moment connections in seismic frames, is typically constructed. Structures with these different framing systems are likely to exhibit different seismic response and collapse mechanism when subjected to large earthquake excitation. However, the simulation up to complete collapse has almost not been conducted and safety margin to complete collapse of these different framing systems has not been sufficiently understood. In this study, seismic simulation of U.S. and Japanese type three-story steel moment-resisting frame structures is conducted using general-purpose finite element analysis program. Practical macro models used for the simulation are based on beam and shell elements. It is found that composite effects of floor slab accelerate column yielding in both U.S. and Japanese type steel frame structures and drift concentration may occur at relatively small ground motion level and eventually result in complete collapse.

scholarly journals Accounting for the Flexibility of Beam-Column Joints within New Zealand Steel Moment-Resisting Frame Structures

2018 ◽  
Vol 763 ◽  
pp. 182-188 ◽  
Author(s):  
Lilliana Wiles ◽  
Jonathan Pethybridge ◽  
Timothy John Sullivan
Keyword(s):  
New Zealand ◽  
Joint Stiffness ◽  
Frame Structures ◽  
Moment Resisting Frame ◽  
Moment Resisting ◽  
Column Joint ◽  
Steel Moment Resisting Frame ◽  
Steel Mrf ◽  
The Impact ◽  
Potential Use

In New Zealand there currently appears to be no simplified, effective method of analysing the rotational stiffness of beam-column joints in steel moment resisting frame structures. Many practicing engineers use simplified design tables to detail beam-column joints for strength requirements, without accounting for the flexibility of joints. This tends to underestimate the flexibility of structures and hence the drifts they undergo in wind and earthquake events. To permit improved consideration of beam-column joint stiffness in a simplified manner, this work adapts the European component method to develop a series of tables that practitioners could look up to quickly identify beam-column joint stiffness values. The potential use for such stiffness values is highlighted by examining the impact of joint flexibility on the drifts expected in a 4-storey steel MRF subject to 1 in 500 year return period earthquake loading.

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