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    楊佑發(fā)，趙忠華，徐典
    (重慶大學(xué)土木工程學(xué)院，重慶400045)

[摘要] 密肋壁板結(jié)構(gòu)是一種全新的節(jié)能建筑結(jié)構(gòu)體系，密肋復(fù)合墻體是密肋壁板結(jié)構(gòu)的主要組成部分和受力部分。針對(duì)單片密肋復(fù)合墻體進(jìn)行基于抗震性能的優(yōu)化設(shè)計(jì)研究。在優(yōu)化過(guò)程中，選取墻體構(gòu)件幾何參數(shù)為設(shè)計(jì)變量，建立以墻體造價(jià)最小為優(yōu)化目標(biāo)、承載力和墻體截面尺寸為約束條件的密肋復(fù)合墻體構(gòu)件優(yōu)化設(shè)計(jì)數(shù)學(xué)模型。針對(duì)優(yōu)化問(wèn)題類型，采用序列二次規(guī)劃法(SQP)在MATLAB軟件系統(tǒng)上進(jìn)行優(yōu)化計(jì)算。對(duì)優(yōu)化結(jié)果分析、比較，提出造價(jià)影響系數(shù)的概念，就各設(shè)計(jì)變量對(duì)密肋復(fù)合墻體造價(jià)的影響進(jìn)行討論。
[關(guān)鍵詞] 密肋復(fù)合墻體；優(yōu)化設(shè)計(jì)；抗剪承載力；造價(jià)影響系數(shù)

Optimization design and influence analysis of cost of multi-ribbed composite wall based on seismic performance
Yang Youfa, Zhao Zhonghua, Xu Dian
(College of Civil Engineering, Chongqing University, Chongqing 400045, China)

Abstract: Multi-ribbed slab structure (MRSS), as a new structural system showing good structural property, is very potential. Multi-ribbed composite wallis a mayor component and stressed member ofMRSS. The optimum design based on seismic performance of a single multi-ribbed composite wall was developed. During the process of subsection optimization, based on the selection of optimization design variables with geometric parameter of multi-ribbed composite wall, the mathematical model whose objective is minimum cost and constraint conditions are load capacity and section size was set up. Besides this, the optimization computation was also performed by sequential quadratic programming method with MATLAB. Finally, based on the analysis and comparison of the optimal solutions and the introduction of influence coefficients of cost, the influence of design variables on cost was discussed.
Keywords: multi-ribbed composite wall; optimization design; shear bearing capacity; influence coefficients of cost