scholarly journals The seismic response of inelastic structures

1975 ◽  
Vol 8 (3) ◽  
pp. 192-203
Author(s):  
R. D. Sharpe ◽  
A. J. Carr
Keyword(s):  
Seismic Design ◽  
Design Method ◽  
Plastic Hinge ◽  
Degree Of Freedom ◽  
Axial Loads ◽  
Earthquake Excitation ◽  
Inelastic Structures ◽  
Dynamic Analyses ◽  
Non Linear ◽  
Seismic Design Method

A thirteen storey, two bay, reinforced concrete framed structure is subjected to a series of non-linear, dynamic analyses in an attempt to find some correlation between the damaging potential of various digitised earthquakes and their relative strengths which have been computed in a variety of ways. Much of the previous work in this field has been with respect to simple one degree of freedom systems and these do not appear to give any indication of the correlation that could be expected for a non-linear multi-degree of freedom structure. The results show the effects of the different scalings of the various earthquakes and compare these with those obtained for the familiar North-South component of the May 18, 1940 El Centro earthquake. These results highlight the difficulty of trying to relate the use of such a dynamic earthquake analysis to the present pseudo-static code requirements. Further, the results of the analyses show also the great difference between the present assumption of the plastic hinge distributions, used in the ultimate seismic design method, and those observed during the earthquake excitation with the consequences on the lower-floor column axial loads.

Shape Optimization and Seismic Design of Concrete-Filled Square Tubular Column and Reduced Beam Section with Cut Web

2010 ◽  
Vol 163-167 ◽  
pp. 2397-2403
Author(s):  
Yan Li Guo ◽  
Xing You Yao
Keyword(s):  
Seismic Design ◽  
Design Method ◽  
Plastic Hinge ◽  
Von Mises Stress ◽  
Reduced Beam Section ◽  
Weak Beam ◽  
Beam Section ◽  
Ultimate Load Carrying Capacity ◽  
Seismic Design Method ◽  
Von Mises

According to anti-seismic design principle of strong column and weak beam, and of strong joint and weak member, reduced beam section(RBS) is often used to shift away plastic hinge from end of beam to weaken region of the beam. Reduced beam section with cut web are analyzed by non-linear finite element method(FEM) in this paper. Two kinds of effective suggested joints of reduced beam section(circled hole and long-circled hole) are put forward by comparing the results of mechanical behavior of reduced beam section with which of traditional RBS, including of ultimate load-carrying capacity, Von-mises stress distribution and the place of largest stress of beam end of the beam-column joints. A proposed seismic design method is put forward according to related chinese codes.

scholarly journals Seismic Design Method of Self-Centring-Segment Bridge Piers with Tensile-Type Viscoelastic Dampers

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Huixing Gao ◽  
Yang Song ◽  
Wenting Yuan ◽  
Hongxu Lu ◽  
Shuo Cao
Keyword(s):  
Seismic Design ◽  
Design Method ◽  
Element Model ◽  
Bridge Pier ◽  
Bridge Piers ◽  
Earthquake Excitation ◽  
Viscoelastic Dampers ◽  
Displacement Based ◽  
Seismic Design Method ◽  
Stiffness And Damping

This paper aims to study the deformational behaviour of tensile-type viscoelastic dampers under different earthquake excitation directions. A method for calculating the corresponding equivalent additional stiffness and damping of a self-centring-segment bridge pier is derived. Using the displacement-based seismic design method, a design method for self-centring-segment bridge piers with tensile-type viscoelastic dampers is proposed. Using the proposed method, a self-centring-segment bridge pier is designed. Based on dynamic analysis of the finite element model by OpenSees, the effectiveness of the proposed seismic design method is validated.

Displacement Based Seismic Design Method of RC Frame with Friction Dampers

2011 ◽  
Vol 194-196 ◽  
pp. 1365-1368
Author(s):  
Chang Lin Fan ◽  
Hui Ji
Keyword(s):  
Seismic Design ◽  
Design Method ◽  
Response Spectra ◽  
Degree Of Freedom ◽  
Equivalent Linearization ◽  
Rc Frame ◽  
Friction Damper ◽  
Displacement Based ◽  
Seismic Design Method ◽  
Displacement Based Seismic Design

Displacement based seismic design of RC frame with friction damper is proposed in this paper based on the displacement shape of RC frame. and multi-degree-of-freedom system is transformed into an effective single-degree-of-freedom system. Based on equivalent linearization equivalent period is determined by using the elasto-plastic displacement response spectra, and then the structural members are designed. At the same time, target deformability of the frame and friction damper device is obtained by decomposing the structural storey drift. And the expected deformability of the structure can be guaranteed by appropriate the friction energy dissipation brace. This method could effectively control the seismic performance of the structure in earthquakes.

Seismic Design Method for Hybrid Viaduct in Japanese Railways

2000 ◽  
Vol 16 (20) ◽  
pp. 338-346
Author(s):  
Kiyomitsu MURATA ◽  
Masato YAMADA ◽  
Tomohiro TAKAYAMA ◽  
Masanori KINOSHITA
Keyword(s):  
Seismic Design ◽  
Design Method ◽  
Seismic Design Method

Research Situation on the Performance-Based Seismic Design Method for Reinforced Concrete Structure

2010 ◽  
Vol 163-167 ◽  
pp. 1757-1761
Author(s):  
Yong Le Qi ◽  
Xiao Lei Han ◽  
Xue Ping Peng ◽  
Yu Zhou ◽  
Sheng Yi Lin
Keyword(s):  
Reinforced Concrete ◽  
Seismic Design ◽  
Design Method ◽  
Concrete Structures ◽  
Reinforced Concrete Structures ◽  
Seismic Evaluation ◽  
Seismic Codes ◽  
Performance Based Seismic Design ◽  
Capacity Calculation ◽  
Seismic Design Method

Various analytical approaches to performance-based seismic design are in development. Based on the current Chinese seismic codes，elastic capacity calculation under frequent earthquake and ductile details of seismic design shall be performed for whether seismic design of new buildings or seismic evaluation of existing buildings to satisfy the seismic fortification criterion “no damage under frequent earthquake, repairable under fortification earthquake, no collapse under severe earthquake”. However, for some special buildings which dissatisfy with the requirements of current building codes, elastic capacity calculation under frequent earthquake is obviously not enough. In this paper, the advanced performance-based seismic theory is introduced to solve the problems of seismic evaluation and strengthening for existing reinforced concrete structures, in which story drift ratio and deformation of components are used as performance targets. By combining the features of Chinese seismic codes, a set of performance-based seismic design method is established for reinforced concrete structures. Different calculation methods relevant to different seismic fortification criterions are adopted in the proposed method, which solve the problems of seismic evaluation for reinforced concrete structures.

scholarly journals Seismic Design Method for CFS Diagonal Strap-Braced Stud Walls: Experimental Validation

2016 ◽  
Vol 142 (3) ◽  
pp. 04015154 ◽  
Author(s):  
Luigi Fiorino ◽  
Ornella Iuorio ◽  
Vincenzo Macillo ◽  
Maria Teresa Terracciano ◽  
Tatiana Pali ◽  
...  
Keyword(s):  
Seismic Design ◽  
Experimental Validation ◽  
Design Method ◽  
Seismic Design Method

scholarly journals STUDY ON SEISMIC DESIGN METHOD OF ANCHORED SHEET PILE QUAY WALL AT FISHING PORTS

2018 ◽  
Vol 74 (2) ◽  
pp. I_240-I_245
Author(s):  
Kimiyasu SAEKI ◽  
Hidemasa SATO ◽  
Teruhisa FUJII ◽  
Kunitomo ASAKURA ◽  
Masayuki FUDO ◽  
...  
Keyword(s):  
Seismic Design ◽  
Design Method ◽  
Sheet Pile ◽  
Quay Wall ◽  
Seismic Design Method
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