【摘要】：影響建筑所采取的抗震措施的因素有很多,其中場(chǎng)地條件就著重要的影響,因此如何快速準(zhǔn)確的進(jìn)行場(chǎng)地類別的劃分是建筑設(shè)計(jì)中的一項(xiàng)重要任務(wù)。由于影響場(chǎng)地類別的劃分條件較多,根據(jù)現(xiàn)行的建筑抗震設(shè)計(jì)規(guī)范要求,一般選取兩到三個(gè)條件進(jìn)行考慮,作為場(chǎng)地類別劃分的依據(jù)。本課題選取等效剪切波速vse和場(chǎng)地覆蓋層厚度dov兩個(gè)條件作為場(chǎng)地分類的依據(jù),基于單片機(jī)控制器設(shè)計(jì)出了操作簡(jiǎn)單、使用方便的手持式建筑場(chǎng)地分類儀。在工程人員需要確定場(chǎng)地特征時(shí),只要輸入等效剪切波速vse和場(chǎng)地覆蓋層厚度dov兩個(gè)參數(shù),即可直接得到所需的場(chǎng)地分類。 論文中以作者研究的基于單片機(jī)的場(chǎng)地分類儀設(shè)計(jì)課題為背景,通過(guò)基于模糊分類特征建立的二維隸屬函數(shù),作出了便攜式的場(chǎng)地分類儀。課題主要完成了以下幾項(xiàng)工作： (1)綜述了基于單片機(jī)的場(chǎng)地分類儀設(shè)計(jì)項(xiàng)目研究的目的、意義和國(guó)內(nèi)外研究現(xiàn)狀。 (2)探討了項(xiàng)日所需的關(guān)鍵技術(shù)。首先介紹了系統(tǒng)的硬件設(shè)計(jì)方案及所需核心硬件的特點(diǎn)；其次是軟件系統(tǒng)的設(shè)計(jì)方案和設(shè)計(jì)架構(gòu)。 (3)完成了基于單片機(jī)的場(chǎng)地分類儀設(shè)計(jì),包括系統(tǒng)的硬件設(shè)計(jì)和軟件設(shè)計(jì),系統(tǒng)采用模塊化的設(shè)計(jì)方法,便于以后的升級(jí)和維護(hù)。在該系統(tǒng)的硬件設(shè)計(jì)中,主要包括硬件系統(tǒng)的選型、單片機(jī)控制板及其輔助電路的設(shè)計(jì)、供電系統(tǒng)設(shè)計(jì)、鍵盤模塊設(shè)計(jì)、液晶顯示模塊設(shè)計(jì)、通信接口設(shè)計(jì)等內(nèi)容；軟件設(shè)計(jì)中,重點(diǎn)介紹了軟件系統(tǒng)的設(shè)計(jì)思想及系統(tǒng)中各個(gè)功能子程序的實(shí)現(xiàn),并詳細(xì)說(shuō)明了基于場(chǎng)地模糊化分類所建立的二維隸屬函數(shù),最后通過(guò)編寫程序?qū)崿F(xiàn)二維隸屬函數(shù)中的土層等效剪切波速vse和場(chǎng)地覆蓋層厚度dov兩個(gè)參數(shù)在不同數(shù)值下對(duì)應(yīng)的四類標(biāo)準(zhǔn)場(chǎng)地土的隸屬度向量u的數(shù)據(jù)采集,并根據(jù)得出的隸屬度向量μ的數(shù)值來(lái)區(qū)分場(chǎng)地類型。 (4)進(jìn)行了硬件系統(tǒng)和軟件系統(tǒng)的仿真調(diào)試,在此基礎(chǔ)上制作出了手持式的場(chǎng)地分類儀,并進(jìn)行了工程實(shí)例的應(yīng)用分析,其結(jié)果表明與抗震設(shè)計(jì)規(guī)范中的結(jié)果一致。 基于單片機(jī)的場(chǎng)地分類儀具有結(jié)構(gòu)簡(jiǎn)單,體積小,使用攜帶方便的特點(diǎn),對(duì)新型場(chǎng)地分類儀的設(shè)計(jì)作出了一定的探索。
[Abstract]:There are many factors affecting the seismic measures taken by buildings, among which the site conditions play an important role, so how to quickly and accurately classify the site types is an important task in architectural design. Three conditions are considered as the basis of site classification. In this paper, two conditions, equivalent shear wave velocity VSE and site cover thickness dov, are selected as the basis of site classification. As long as two parameters of equivalent shear wave velocity VSE and site cover thickness Dov are input, the required site classification can be obtained directly.
In this paper, a portable site classifier is designed on the basis of two-dimensional membership function based on fuzzy classification features. The main tasks are as follows:
(1) The purpose, significance and research status of site classifier design project based on MCU are summarized.
(2) Discussed the key technologies needed for the project day. Firstly, introduced the hardware design scheme of the system and the characteristics of the required core hardware; secondly, the software system design scheme and design framework.
(3) The design of site classifier based on MCU is completed, including the hardware design and software design of the system. The system adopts modular design method to facilitate the upgrade and maintenance in the future. Module design, LCD module design, communication interface design, etc. In software design, the design idea of software system and the realization of each function subroutine in the system are mainly introduced, and the two-dimensional membership function based on site fuzzy classification is explained in detail. Finally, the two-dimensional membership function is realized by programming. Data acquisition of four types of standard site soil membership vector u corresponding to two parameters of soil equivalent shear wave velocity VSE and site cover thickness Dov under different values, and site types are distinguished according to the values of membership vector U.
(4) The hardware system and software system are simulated and debugged, and the hand-held site classifier is made on the basis of which, and the application analysis of an engineering example is carried out. The results show that the results are consistent with those in the seismic design code.
The site classifier based on single chip microcomputer has the characteristics of simple structure, small volume and easy to use and carry.
【學(xué)位授予單位】：南京理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TP368.1;TU197

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