Rocking damage-free steel column base with friction devices: design procedure and numerical evaluation
نویسندگان
چکیده
منابع مشابه
Effect of column-foundation connection stiffness on seismic performance of rocking steel braced frame
Residual drifts after severe earthquakes interrupt serviceability of buildings. Retrofitting of such buildings is in many cases very difficult and consumes lots of time and money. Recently, there are some attempts to develop the seismic design procedures to not only satisfy life safety criteria but also lead to more economical buildings. One of these modern methods of improving seismic performa...
متن کاملDamage Avoidance Design Steel Beam-Column Moment Connection Using High-Force-To-Volume Dissipators
Existing welded steel moment frames are designed to tolerate substantial yielding and plastic rotation under earthquake loads. This sacrificial design approach can lead to permanent, and often irreparable damage when interstory drifts exceed 2%. The experimental seismic performance of a 50% full-scale damage avoidance designed structural steel beam-column connection is presented. The beamcolumn...
متن کاملBi-directional Seismic Analysis and Design of Bridge Steel Truss Piers Allowing a Controlled Rocking Response
4-legged bridge steel truss piers provide support for gravity, transverse, and longitudinal lateral loads of bridges. Allowing a controlled rocking response for seismic resistance of 4-legged truss piers requires the development of design equations considering ground motions in two horizontal directions and vertical excitation. First, the static kinematic and hysteretic bi-directional behavior ...
متن کاملProbabilistic Seismic Performance of Rocking-Foundation and Hinging-Column Bridges
Many engineers are hesitant to specify rocking foundations for ordinary bridges because of the unsubstantiated notion that rocking bridges are more susceptible to instability than conventional fixed-base bridges. A parametric study using a finite element model including large deformation effects compares the performance and stability of stiff, flexible, tall, and short hinging-column and rockin...
متن کاملFree Rocking of Prismatic Blocks
This paper investigates both experimentally and theoretically the free rocking of a prismatic block supported by a stationary , horizontal foundation: the block is tilted, almost to the point of overturning, and released from this position. It is shown that the standard mathematical model for this problem is often inaccurate. A critical review of the implicit assumptions behind the standard mod...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Earthquake Engineering & Structural Dynamics
سال: 2017
ISSN: 0098-8847
DOI: 10.1002/eqe.2904