An investigation of P-delta effect in conventional seismic design and direct displacement-based design using elasto-plastic SDOF systems

2018 ◽  
Vol 17 (1) ◽  
pp. 313-336
Author(s):  
Nasir Pourali ◽  
Horr Khosravi ◽  
Mehdi Dehestani
Keyword(s):  
Seismic Design ◽  
Direct Displacement Based Design ◽  
Displacement Based

DIRECT DISPLACEMENT-BASED DESIGN OF A BUILDING INCORPORATING VISCOUS DAMPERS

2020 ◽  
Vol 7 (2) ◽  
Author(s):  
Anagha Girish Malu ◽  
Satyabrata Choudhury
Keyword(s):  
Seismic Design ◽  
Structural Damage ◽  
Design Method ◽  
Performance Criterion ◽  
Design Tool ◽  
Viscous Dampers ◽  
Direct Displacement Based Design ◽  
Frame Building ◽  
Acceptable Method ◽  
Displacement Based

The Direct Displacement-Based Design (DDBD) method has become a popular seismic design tool for structures. It takes drift as the performance criterion while designing structures. This method overcomes the shortcomings of the traditional force-based seismic design method, which considers peak force as the design parameter. In terms of structural damage, deflection is a better indicator, and hence, DDBD is a more acceptable method for seismic design. In this paper, a 12-story RC frame building with supplemental damping has been designed and investigated using a direct procedure of calculation, while considering the displacement-based design method. The performance of building with and without viscous dampers for a particular performance level has been compared. The effects of the non-linearity of dampers have also been discussed, and the effect of constant and story proportional drift proportional damper forces have been investigated. The results of various cases have been compared. It has been found that drift proportional story shear proportional carried damper design leads to construction economy.

scholarly journals Displacement-based Design of Frames Consisting of Composite Beams and RC Columns

2015 ◽  
Vol 9 (1) ◽  
pp. 811-825
Author(s):  
Wei Li ◽  
Linzhu Sun ◽  
Kejia Yang
Keyword(s):  
Seismic Design ◽  
Design Method ◽  
Concrete Columns ◽  
Composite Beams ◽  
Seismic Performance Assessment ◽  
Direct Displacement Based Design ◽  
Composite Frame ◽  
Calculation Results ◽  
Performance Based Seismic Design ◽  
Displacement Based

Performance-based seismic design (PBSD) method has been widely recognized in recent years, it can be used for the future structural design. And the direct displacement-based design method (DDBD) is one of the most effective ways to implement the performance-based seismic design (PBSD) theory in current. In this paper, aiming to the composite frame consisting of composite beams and continuous compound spiral hoop reinforced concrete columns (CCSHRCS), its DDBD flowchart is presented, and the structure identified performance objectives in the preliminary design process and specific seismic performance assessment methods are given. Finally, through the calculation results of CCSHRCS frame case that demonstrated the reasonableness of the method. It provides an effective tool for the seismic design of CCSHRCS frame structures

scholarly journals Comparative Study of Direct Displacement Based and Forced Based Design Method for RC- Frame with Shear Wall

10.29007/lft5 ◽  
2018 ◽  
Author(s):  
Bijal Chaudhri ◽  
Dipali Patel
Keyword(s):  
Seismic Design ◽  
Design Method ◽  
Shear Wall ◽  
Performance Based Design ◽  
Rc Frame ◽  
Base Shear ◽  
Global Parameter ◽  
Direct Displacement Based Design ◽  
Moment Resisting ◽  
Displacement Based

The Seismic design of structure has conventionally been force based. Displacement is the major factor for the damage rather than force. The alternative procedure for seismic design, which becomes more popular, is performance based design method. Displacement is global parameter of performance based design method. Direct displacement based design method has been used for seismic design of structure. The paper attempts to design moment resisting RC-frame using Displacement based design method and Forced based design method. 15-storey building with shear wall has been taken for parametric study. The parameter like base shear and lateral load distribution are taken for the study. It is observed that base shear of RC building calculated by DDBD is less compared to FBD.

scholarly journals Performance based seismic design

2000 ◽  
Vol 33 (3) ◽  
pp. 325-346 ◽  
Author(s):  
M. J. N. Priestley
Keyword(s):  
Seismic Design ◽  
Performance Based Design ◽  
Limit States ◽  
Existing Structures ◽  
Direct Displacement Based Design ◽  
Capacity Spectrum ◽  
N2 Method ◽  
Performance Based Seismic Design ◽  
Force Reduction ◽  
Displacement Based

One of the major developments in seismic design over the past 10 years has been increased emphasis on limit states design, now generally termed Performance Based Engineering. Three techniques - the capacity spectrum approach, the N2 method and direct displacement-based design have now matured to the stage where seismic assessment of existing structures, or design of new structures can be carried out to ensure that particular deformation-based criteria are met. The paper will outline and compare the three methods, and discuss them in the context of traditional force-based seismic design and earlier design approaches which contained some elements of performance based design. Factors defining different performance states will be discussed, including the need, not yet achieved, to include residual displacement as a key performance limit. Some emphasis will be placed on soil-related problems, and the incorporation of soil/structure interaction into performance-based design. It will be shown that this is relatively straightforward and results in consistent design solutions not readily available with force-based designs using force-reduction factors.

fib Bulletin 25. Displacement-based seismic design of reinforced concrete buildings

2003 ◽  
Author(s):  
G. Michele Calvi ◽  
Daniel P. Abrams ◽  
Hugo Bachmann ◽  
Shaoliang Bai ◽  
Patricio Bonelli ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Seismic Design ◽  
Reinforced Concrete Buildings ◽  
Concrete Buildings ◽  
Displacement Based ◽  
Displacement Based Seismic Design
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