【摘要】：玻璃幕墻作為一種新型的建筑外圍結(jié)構(gòu)被大量使用,特別是構(gòu)件式玻璃幕墻因其技術(shù)成熟、施工簡單用之更多。然而,在眾多已建成的幕墻工程中時常有玻璃墜落、橫梁扭轉(zhuǎn)等不安全現(xiàn)象發(fā)生。因此,如何保證幕墻的安全性能成為幕墻行業(yè)特別關(guān)注的問題。本文結(jié)合工程實(shí)例,針對構(gòu)件式玻璃幕墻在設(shè)計過程中存在的問題進(jìn)行了一系列的研究。構(gòu)件式玻璃幕墻中的立柱是支承幕墻的關(guān)鍵構(gòu)件,其受力計算正確與否不僅影響幕墻的安全可靠性,也是影響幕墻建設(shè)投資的主要因素。本文結(jié)合實(shí)際工程的設(shè)計結(jié)果,經(jīng)過理論分析比較,得出多跨鉸接梁力學(xué)模型與立柱實(shí)際受載情況比較吻合,并且應(yīng)用有限單元法對立柱結(jié)構(gòu)進(jìn)行應(yīng)力、撓度數(shù)值分析,使得多跨鉸接梁力學(xué)模型的數(shù)值計算簡單易行;對于超高層建筑,風(fēng)荷載對立柱的結(jié)構(gòu)設(shè)計有較大影響,應(yīng)根據(jù)工程實(shí)際條件,按照等剛度原理進(jìn)行立柱的設(shè)計。針對已有工程上出現(xiàn)的橫梁扭轉(zhuǎn)現(xiàn)象,對橫梁及其連接件的偏心受力進(jìn)行了研究,并且結(jié)合實(shí)例計算驗(yàn)證了玻璃板塊的自重對橫梁產(chǎn)生的偏心作用較大,在構(gòu)件式玻璃幕墻設(shè)計過程中,應(yīng)當(dāng)對橫梁及其連接件進(jìn)行偏心受力校核。在幕墻工程設(shè)計中,通常只對通用樓層的單個構(gòu)件進(jìn)行有限元分析,忽視了不同位置幕墻受力情況以及構(gòu)件之間相互作用對整體系統(tǒng)的影響。本文通過編制命令流的方法對玻璃幕墻整體系統(tǒng)進(jìn)行了有限元分析,獲得了整體系統(tǒng)的受力分布情況,與傳統(tǒng)設(shè)計方法對比后可知:構(gòu)件間的相互作用可以提高構(gòu)件的承載力,并且支座位置不同對幕墻整體系統(tǒng)受力具有一定影響。因此,建議在幕墻設(shè)計時應(yīng)當(dāng)根據(jù)工程具體條件合理設(shè)置支座的位置。
[Abstract]:As a new type of building peripheral structure, glass curtain wall is widely used, especially because of its mature technology, the construction of component glass curtain wall is more and more. However, in many completed curtain wall projects, there are often unsafe phenomena such as glass fall, beam torsion and so on. Therefore, how to ensure the safety performance of curtain wall has become a special concern of curtain wall industry. In this paper, a series of research on the problems existing in the design of component glass curtain wall is carried out with an engineering example. The column in component glass curtain wall is the key component of supporting curtain wall. Whether its force calculation is correct or not only affects the safety and reliability of curtain wall, but also affects the main factor of curtain wall construction investment. In this paper, combined with the design results of practical engineering, through theoretical analysis and comparison, it is concluded that the mechanical model of multi-span bonded beam is in good agreement with the actual load of column, and the finite element method is used to analyze the stress and deflection of column structure. The numerical calculation of the mechanical model of multi-span bonded beams is simple and feasible. For super high-rise buildings, wind load has a great influence on the structural design of columns. According to the actual engineering conditions, the design of columns should be carried out according to the principle of equal stiffness. In view of the torsional phenomenon of the beam in the existing engineering, the eccentric force of the beam and its connectors is studied, and the eccentric effect of the weight of the glass plate on the beam is verified by an example. In the design process of component glass curtain wall, the eccentric force of crossbeam and its connectors should be checked. In the curtain wall engineering design, the finite element analysis of only a single component of the general floor is usually carried out, neglecting the stress of the curtain wall at different positions and the influence of the interaction between the components on the whole system. In this paper, the finite element analysis of the whole system of glass curtain wall is carried out by means of compiling command flow, and the force distribution of the whole system is obtained. compared with the traditional design method, it can be seen that the interaction between components can improve the bearing capacity of members. And the different position of the support has a certain influence on the force of the whole curtain wall system. Therefore, it is suggested that the position of support should be set reasonably according to the specific conditions of the project in the design of curtain wall.
【學(xué)位授予單位】：河北工程大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TU227;TU318

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本文編號：2492290