Failure Analysis of a Concrete Anchor under Severe Seismic Action
Source abstract
Abstract
We explored the usage of a response modification factor and overstrength factor for analyzing brittle or ductile failure of anchor system. Parametric studies on the tension and shear behaviors of anchor systems were compared in terms of elastic and ductile design using tuned Gyeongju earthquake data (ca. 0.3 g). We evaluated the yields of concrete anchors in terms of ductile failure and reviewed the various anchors, anchor attachments, and facilities and equipment that ensure anchor safety and functionality. The pseudo-static pushover test and elastic/inelastic dynamic tests revealed that a ductile design reduces the seismic demand relatively efficiently. As the DS-0050 design standards are based on strength design, no displacement limit for non-structural facilities/equipment is imposed. Despite the advantages of ductile design, large displacements of equipment or facilities during seismic action can cause permanent deformation and fall-out of major compartments; also, rapid functional recovery may be difficult. Thus, displacement limits for non-structural equipment or facilities should be included in the design code.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Structural Response to Dynamic Loads · Rock Mechanics and Modeling · Structural Behavior of Reinforced Concrete
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Civil Engineering, Chonnam National University, Gwangju 61186, Korea
Next Generation Transmission & Substation Laboratory, Korea Electric Power Research Institute, Daejeon 34056, Korea
Funding
NRF
References (30)
Show source-provided references
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