Multi-objective seismic design of BRBs-reinforced concrete buildings using genetic algorithms

Leyva, Herian; Bojórquez, Edén; Reyes‐Salazar, Alfredo; Carrillo, Julián; Almansa, Francisco López

doi:10.1007/s00158-021-02965-5

Cited by 16 publications

(3 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Various approaches (e.g., force-based, [40][41][42][43] displacement-based, [44][45][46] energy-based, [47][48][49][50] and many more [51][52][53][54][55][56] ) have been proposed so far for the optimal design of building structures equipped with BRBs in the form of performance-based design methods. These approaches are often derived from the first generation of Performance-Based Earthquake Engineering (PBEE) 57,58 and evaluate the seismic performance of a building by defining limit states for different structural response parameters in a limited number of seismic hazard levels.…”

Section: Introductionmentioning

confidence: 99%

Life cycle cost‐based optimization framework for seismic design and target safety quantification of dual steel buildings with buckling‐restrained braces

Amiri

Estekanchi

2023

Earthq Engng Struct Dyn

View full text Add to dashboard Cite

This study proposes an efficient risk‐targeted framework for integrated optimal seismic design and quantifying target safety of Special Moment‐Resisting Frames (SMRFs) with Buckling‐Restrained Braces (BRBs) in the typical dual steel buildings. This framework provides an automated design procedure formulated as a constrained single‐objective optimization problem to achieve the minimum Life Cycle Cost (LCC) within the Particle Swarm Optimization (PSO) algorithm and can be the basis of current seismic codes for target safety calibration. LCC includes initial construction cost and lifetime seismic losses such as repair cost, repair time, and casualties. FEMA P‐58 methodology is employed for the LCC analysis of the building under possible earthquakes during its lifetime, which is able to take into account potential uncertainties in the hazard‐response‐damage‐loss relationship. An appropriate cost model is developed to estimate the initial and repair cost of the studied BRBs. Minimum requirements of ASCE and AISC codes are considered as design constraints. Nonlinear response history analysis through the Endurance Time (ET) method is utilized to estimate the structural responses versus seismic intensity. Three 4‐, 8‐, and 12‐story steel buildings with dual seismic force‐resisting system consisting of SMRF and BRB (called steel SMRF‐BRB) are selected as the case study. Each building is optimally designed with two approaches: (1) LCC‐based design within the proposed framework and (2) code‐based design to minimize initial construction cost. Comparison of optimized buildings with the two design approaches in terms of structural responses and seismic consequences demonstrates that fulfilling the minimum code requirements at a given seismic hazard level is not sufficient to minimize lifetime seismic losses of steel SMRF‐BRBs. This is because the optimal designs obtained from the code‐based approach are associated with damage concentration, irreparability, and high collapse probability, especially in seismic events more severe than the design level. The proposed LCC‐based approach provides useful information for improving the lifetime seismic performance of steel SMRF‐BRBs.

show abstract

Section: Introductionmentioning

confidence: 99%

Life cycle cost‐based optimization framework for seismic design and target safety quantification of dual steel buildings with buckling‐restrained braces

Amiri

Estekanchi

2023

Earthq Engng Struct Dyn

View full text Add to dashboard Cite

show abstract

“…This is illustrated in damage assessments of buildings in the countries of Turkey [4][5][6], Greece [7], Iran [8], Mexico [9], Korea [10], Pakistan [11], and Nepal [12]. Numerous scholars have extensively researched the seismic resilience of engineering structures [13][14][15][16]. The analysis of structures for seismic resistance utilizes a range of methodologies, encompassing response spectrum analysis, the base shear method (quasi-static method), and time history analysis.…”

Section: Introductionmentioning

confidence: 99%

Effect of Soil Anisotropy on Ground Motion Characteristics

Xie,

Cao,

2023

Buildings

View full text Add to dashboard Cite

Soil transverse isotropy results in different stiffness characteristics in horizontal and vertical directions. However, the effect is usually neglected in seismic motion analysis. In this study, an equivalent linear anisotropic soil model was established based on the finite element method, and we investigated the impact of anisotropic parameters on ground motion at the site under various seismic wave inputs. It was found that the anisotropic parameters have a more significant effect on seismic waves, with the dominant frequency being closer to the fundamental frequency of the site. As an example, the soil dynamic parameters in Shanghai Yangshan Port were calibrated by a series of bending elements, resonance columns, and cyclic triaxial tests. The influences of anisotropy on the peak ground acceleration (PGA) and response spectrum were studied for Yangshan Port. Additionally, the standard design response spectra considering the soil anisotropy were provided. A comparison reveals that the existing isotropic design response spectrum may lead to dangerous seismic design for the structures at Yangshan port.

show abstract

“…A genetic algorithm (GA) is a useful technique in engineering to solve the problems of multi-variable optimisation. In the irrigation field, several researchers (Ferdyn-Grygierek & Grygierek, 2017;Leyva et al, 2021;Zhang et al, 2020) has applied a GA successfully to optimise designs. Valipour & Montazar (2012) proposed a new methodology using MS Visual Basic and the GA of the MATLAB software and concluded that it could optimise water distribution and farm size to achieve maximum irrigation status.…”

Section: Introductionmentioning

confidence: 99%

Irrigation Uniformity Optimisation of a Mini-Centre Pivot System

Salah¹,

Guerrah²,

Atia³

2021

Eng. Agríc.

View full text Add to dashboard Cite

In El Oued, southern Algeria, the traditional Mini-Centre Pivot System (MCPS) is widely used for the irrigation of agricultural crops, and its use has been growing continuously. However, these systems have a constant nozzle diameter along the lateral pipe, which affects productivity directly, besides decreasing both the quantity and quality of agricultural products by irrigation heterogeneity. Therefore, optimising the design of the MCPS nozzles is linked strongly to the desired uniform irrigation. This study aims to determine the optimal configuration of nozzles for high irrigation uniformity. To achieve this goal, a genetic algorithm was used for maximising the uniformity of MCPS-mediated irrigation. The optimisation is carried out according to water distribution modelling, calculation of the Heermann and Hein uniformity coefficient (CUH), and existing nozzle diameters. To verify the accuracy of the proposed model, three existing MCPS (60 m, 50 m, and 46 m in length) are investigated experimentally. The developed code findings in terms of CUH are in agreement with those obtained by experimental tests. The analysis indicated that the nozzle diameter should vary from 5 to 15 mm along the lateral pipe. In these optimal conditions, the CUH was improved by 29.77%, 33.99%, and 19.36%, respectively, for the existing 60, 50, and 46 m irrigation systems. The most obvious findings to emerge from this study is that using a genetic algorithm to optimise the design based on the nozzle size improves water application uniformity by more than 19% in terms of the CUH.

show abstract

Multi-objective seismic design of BRBs-reinforced concrete buildings using genetic algorithms

Cited by 16 publications

References 49 publications

Life cycle cost‐based optimization framework for seismic design and target safety quantification of dual steel buildings with buckling‐restrained braces

Life cycle cost‐based optimization framework for seismic design and target safety quantification of dual steel buildings with buckling‐restrained braces

Effect of Soil Anisotropy on Ground Motion Characteristics

Irrigation Uniformity Optimisation of a Mini-Centre Pivot System

Contact Info

Product

Resources

About