本文選題：大跨度門(mén)式剛架 + 斜梁　； 參考：《沈陽(yáng)大學(xué)》2017年碩士論文

【摘要】：近幾年,經(jīng)濟(jì)建設(shè)快速發(fā)展帶來(lái)了我國(guó)建筑產(chǎn)業(yè)的蓬勃進(jìn)步,輕型鋼結(jié)構(gòu)產(chǎn)業(yè)優(yōu)化尤其明顯。門(mén)式剛架是輕型鋼結(jié)構(gòu)之中非常重要的體系,其具有其他體系所無(wú)法比擬的眾多優(yōu)勢(shì),例如質(zhì)量輕,制作快捷,安裝、施工周期短,建筑風(fēng)格靈活多變,適合進(jìn)行大空間設(shè)計(jì),節(jié)能效果好,性價(jià)比高等優(yōu)勢(shì)。門(mén)式剛架結(jié)構(gòu)的跨度正在不斷擴(kuò)大,對(duì)于跨度超過(guò)《門(mén)式剛架輕型房屋鋼結(jié)構(gòu)技術(shù)規(guī)程》(CECS102:2002)規(guī)定的剛架最大跨度36m的門(mén)式剛架的設(shè)計(jì)相關(guān)的資料還是很缺乏。因此大跨度門(mén)式剛架的研究會(huì)對(duì)我國(guó)鋼結(jié)構(gòu)領(lǐng)域發(fā)展帶來(lái)深遠(yuǎn)影響。通過(guò)收集大量與門(mén)式剛架相關(guān)的資料和文獻(xiàn),進(jìn)一步研究門(mén)式剛架的發(fā)展歷程、性能特點(diǎn)以及門(mén)式剛架的發(fā)展前景。收集大量的塑性理論與塑性設(shè)計(jì)的相關(guān)資料以及文獻(xiàn),分析塑性理論的特點(diǎn)、應(yīng)用條件以及研究現(xiàn)狀。本文通過(guò)運(yùn)用PKPM-STS軟件模擬分析,對(duì)實(shí)際工程中跨度為120m的連續(xù)大跨度門(mén)式剛架斜梁進(jìn)行塑性承載力研究,其研究主要內(nèi)容包括:(1)根據(jù)受彎構(gòu)件彎曲應(yīng)力分析過(guò)程、《鋼結(jié)構(gòu)設(shè)計(jì)規(guī)范》(GB50017-2003)以及《鋼結(jié)構(gòu)設(shè)計(jì)規(guī)范送審稿》(GB50017-201X)等塑性理論資料,深入研究其中彈塑性理論、塑性理論部分條文。(2)運(yùn)用PKPM軟件之中的STS模塊,針對(duì)跨度為120m的連續(xù)大跨度門(mén)式剛架的連續(xù)斜梁,針對(duì)不同截面進(jìn)行彈塑性承載力分析以及塑性模擬分析并比較。(3)在相同條件下,比較斜梁同一截面彈塑性和塑性的極限承載力,強(qiáng)度應(yīng)力比δ/f、剪應(yīng)力比τ/f及整體穩(wěn)定性應(yīng)力比。(4)在相同條件下,比較斜梁不同截面塑性極限承載力,強(qiáng)度應(yīng)力比δ/f、剪應(yīng)力比τ/f及整體穩(wěn)定性應(yīng)力比。(5)比較該連續(xù)大跨度門(mén)式剛架結(jié)構(gòu)斜梁采用不同截面時(shí)的用鋼量。通過(guò)對(duì)跨度為120m的連續(xù)大跨度門(mén)式剛架斜梁進(jìn)行塑性及彈塑性設(shè)計(jì)的比較,分析此類(lèi)結(jié)構(gòu)進(jìn)行塑性設(shè)計(jì)的經(jīng)濟(jì)性、實(shí)用性及發(fā)展空間。
[Abstract]:In recent years, the rapid development of economic construction has brought about the vigorous progress of construction industry in China, especially in the optimization of light steel structure industry. Portal frame is a very important system in light steel structure. It has many advantages that cannot be compared with other systems, such as light quality, quick manufacture, installation, short construction period, flexible architectural style, and suitable for large space design. Good energy-saving effect, high cost-performance and other advantages. The span of portal frame structure is expanding continuously, and there is still a lack of relevant data on the design of portal frame with a maximum span of 36 m over and beyond the technical specification for steel structure of light building with portal frame (CECS 102: 2002). Therefore, the research of large-span portal frame will bring profound influence to the development of steel structure in China. Through collecting a large number of information and literature related to portal frame, the development history, performance characteristics and development prospect of portal frame are further studied. The characteristics, application conditions and research status of plastic theory are analyzed by collecting a large number of relevant materials and literature about plastic theory and plastic design. By using PKPM-STS software, the plastic bearing capacity of 120m continuous large-span oblique beam of portal frame is studied in this paper. The main research contents are as follows: (1) according to the plastic theory data of bending stress analysis process of bending members, Code for Design of Steel structures (GB50017-2003) and draft of Code for Design of Steel structures (GB50017-201X), the elastic-plastic theory is deeply studied. (2) using the STS module of PKPM software, aiming at the continuous oblique beam with 120m span and large span portal frame, The elastic-plastic bearing capacity analysis and plastic simulation analysis of different sections are carried out and compared. (3) under the same conditions, the elastic plastic and plastic ultimate bearing capacity of oblique beams with the same section is compared. The strength stress ratio 未 / f, the shear stress ratio 蟿 / f and the global stability stress ratio. (4) under the same conditions, the plastic ultimate bearing capacity of different sections of oblique beams is compared. The strength stress ratio 未 / f, the shear stress ratio 蟿 / f and the global stability stress ratio are compared. (5) the amount of steel used in this continuous large-span portal frame structure with different sections is compared. By comparing the plastic and elastic-plastic design of the continuous large-span portal frame oblique beam with a span of 120m, this paper analyzes the economy, practicability and development space of the plastic design of this kind of structure.
【學(xué)位授予單位】：沈陽(yáng)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：TU392.5

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