Seismic design method for multi-story SMA braced frames based on inelastic displacement ratio

2021 ◽  
Vol 147 ◽  
pp. 106794
Author(s):  
Canxing Qiu ◽  
Xiuli Du ◽  
Jun Teng ◽  
Zuohua Li ◽  
Cheng Chen
Keyword(s):  
Seismic Design ◽  
Design Method ◽  
Braced Frames ◽  
Inelastic Displacement ◽  
Displacement Ratio ◽  
Seismic Design Method ◽  
Inelastic Displacement Ratio

Prestressed concrete wall system with friction devices: Seismic performance and direct displacement–based seismic design

2021 ◽  
pp. 136943322110427
Author(s):  
Gang Xu ◽  
Tong Guo ◽  
Aiqun Li
Keyword(s):  
Seismic Design ◽  
Prestressed Concrete ◽  
Relative Strength ◽  
Concrete Wall ◽  
Residual Displacement ◽  
Inelastic Displacement ◽  
Displacement Ratio ◽  
Displacement Based ◽  
Inelastic Displacement Ratio ◽  
Wall System

It is convenient to use the inelastic displacement ratio spectra and residual displacement ratio spectra to predict the maximum inelastic displacement and residual displacement of building structures based on linear elastic analysis directly. The prestressed concrete wall system with friction devices (PCW-FD system) can be simulated by single-degree-of-freedom (SDOF) model with self-centering behavior. To investigate the seismic performance of PCW-FD system, the SDOF models with fully and non-fully self-centering behavior are analyzed firstly, and it is concluded that the hysteresis parameters (strength reduction coefficient, post-yield stiffness coefficient, energy dissipation coefficient, and period) have significant influence on the seismic responses (such as constant relative strength inelastic displacement ratio, constant relative strength residual displacement ratio, maximum absolute acceleration, the hysteretic energy, and site classifications) during short period, and the trends of the seismic responses are similar at different site classifications. Then a large amount of the result data is summarized, and the constant relative strength inelastic displacement ratio spectra and the constant relative strength residual displacement ratio spectra with enough precision (the correlation coefficients are 0.957 and 0.947, respectively) are established by conducting regression analysis. Finally, the direct displacement–based seismic design method is improved and verified to be suitable for PCW-FD system.

scholarly journals Seismic Response and Design of Steel Multi-Tiered Concentrically Braced Frames of the Conventional Construction Category in Moderate Seismic Regions of Eastern Canada

2021 ◽  
Author(s):  
Eshagh Derakhshan Houreh ◽  
Ali Imanpour
Keyword(s):  
Seismic Response ◽  
Seismic Design ◽  
Design Method ◽  
Braced Frames ◽  
Concentrically Braced Frames ◽  
Eastern Canada ◽  
Concentrically Braced ◽  
Seismic Regions ◽  
Moderate Seismic Regions ◽  
Seismic Design Method

This paper examines the seismic behaviour of steel Multi-Tiered Concentrically Braced Frames (MT-CBFs) of the Conventional Construction category (Type CC) in moderate seismic regions of eastern Canada and proposes a new seismic design method for such structures. A total of 32 prototype MT-CBFs part of a single-storey building are selected and designed in accordance with the 2019 Canadian steel design standard (CSA S16-19) provisions for Type CC structures, excluding the design requirements prescribed for frames taller than 15m, namely the amplification of seismic forces varying by the frame height and the amplification of the column factored seismic force. Nonlinear response history analyses are then performed to examine their seismic response. The results confirmed that tiers experience limited lateral deformation, intermediate horizontal struts are required between tiers, and columns are subjected to combined axial force and bi-axial bending, which in some cases led to column buckling. The results are used to propose a new seismic design method in the framework of CSA S16.

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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