本文選題：擴展基礎(chǔ) + 優(yōu)化設(shè)計　； 參考：《東北林業(yè)大學》2014年碩士論文

【摘要】：科學技術(shù)的不斷創(chuàng)新,推動經(jīng)濟不斷向前快速發(fā)展,人們對物質(zhì)生存環(huán)境提出了更高的要求,而建筑是人類物質(zhì)生存環(huán)境的重要載體。近年來,節(jié)能環(huán)保型社會建設(shè)理念的不斷深入人心,進一步加劇了建筑的需求者和供應(yīng)者對結(jié)構(gòu)優(yōu)化設(shè)計的需要。結(jié)構(gòu)的優(yōu)化設(shè)計,不僅滿足了投資者控制建筑投資成本的目標,而且更加符合使用者對建筑本體功能的需求,從而實現(xiàn)了社會整體經(jīng)濟效益的最大化。因此,建筑結(jié)構(gòu)的優(yōu)化設(shè)計,在市場經(jīng)濟下的節(jié)能環(huán)保型社會越來越成為可行。 本文針對擴展基礎(chǔ)傳統(tǒng)設(shè)計方法在優(yōu)選過程存在中的不足之處,在明確以基礎(chǔ)高度和基礎(chǔ)底板配筋為擴展基礎(chǔ)優(yōu)化設(shè)計的設(shè)計變量后,確定以擴展基礎(chǔ)的總造價(基礎(chǔ)總造價為混凝土總造價與鋼筋總造價之和)最低為最優(yōu)指標的目標函數(shù),和以基礎(chǔ)底板的抗彎強度、抗沖切強度和抗剪強度作為優(yōu)化設(shè)計中的約束條件,應(yīng)用拉格朗日乘子法,提出了擴展基礎(chǔ)的優(yōu)化設(shè)計方法,有效地解決了傳統(tǒng)設(shè)計方法(由主觀假設(shè)基礎(chǔ)尺寸到被動的承載力校核的設(shè)計過程)所帶來的弊端。 結(jié)果表明：提出的擴展基礎(chǔ)的優(yōu)化設(shè)計方法,不僅滿足現(xiàn)行規(guī)范中對基礎(chǔ)承載力要求,而且使基礎(chǔ)造價最節(jié)約,達到安全經(jīng)濟的雙重標準。這為擴展基礎(chǔ)的優(yōu)化設(shè)計提供一種新途徑,據(jù)此已編制擴展基礎(chǔ)優(yōu)化設(shè)計程序,可以減少設(shè)計人員的工作量,將會產(chǎn)生一定的經(jīng)濟效益。
[Abstract]:The continuous innovation of science and technology promotes the rapid development of economy, and people put forward higher requirements for material living environment, and architecture is an important carrier of human material living environment. In recent years, the idea of energy-saving and environment-friendly society has been deeply rooted in people's mind, which further intensifies the needs of the building demanders and suppliers for structural optimization design. The optimal design of the structure not only meets the goal of controlling the investment cost of the building by investors, but also meets the needs of the users for the function of the building ontology, thus realizing the maximization of the overall economic benefits of the society. Therefore, the optimization design of building structure is becoming more and more feasible in the energy saving and environmental protection society under the market economy. In this paper, aiming at the shortcomings of the traditional design method of extended foundation in the process of optimization, after defining the design variables of the optimum design of the extended foundation, the height of the foundation and the reinforcement of the foundation plate are defined. Determining the objective function of the minimum of the total cost of the expanded foundation (the sum of the total cost of the foundation and the total cost of the reinforcement) as the optimum index, and the flexural strength of the foundation slab, The impact shear strength and shear strength are the constraints in the optimization design. The Lagrange multiplier method is applied to the optimization design of the extended foundation. The drawback of traditional design method (from subjective assumption of foundation size to passive bearing capacity checking process) has been solved effectively. The results show that the proposed optimization design method not only meets the requirements of foundation bearing capacity in the current code, but also makes the foundation cost the most economical, and achieves the double standard of safety and economy. This provides a new way for the optimization design of the extended foundation, according to which a program has been compiled for the optimization design of the extended foundation, which can reduce the workload of the designers and will produce certain economic benefits.
【學位授予單位】：東北林業(yè)大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TU47

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本文編號：1966420