發(fā)布時間：2018-06-21 11:34

  本文選題：鋼筋桁架混凝土樓板 + 施工階段�。� 參考：《鄭州大學(xué)》2015年碩士論文

【摘要】：鋼筋桁架混凝土樓板是一種最近幾年才出現(xiàn)的組合樓板形式,具有施工方便、縮短施工工期和適用范圍廣等優(yōu)點(diǎn),在國內(nèi)已有較多的應(yīng)用,但目前對這種樓板的認(rèn)識還是與普通鋼筋混凝土一樣,對它受力性能的分析研究還比較少,這也就影響了鋼筋桁架混凝土樓板的推廣使用。為了研究鋼筋桁架混凝土樓板的受力性能,本文利用有限元分析軟件,對鋼筋桁架混凝土樓板進(jìn)行建模,模擬了在受靜力作用下的性能,對底部壓型鋼板對樓板的作用進(jìn)行了分析計算。本文對比了在施工階段分別不考慮底部壓型鋼板、考慮底部壓型鋼板以及考慮壓型鋼板有效截面的作用。通過考慮底部壓型鋼板的有效寬度,研究鋼筋桁架混凝土樓板的剛度公式。論文還研究了施工時鋼筋桁架混凝土樓板有無支撐的受力性能,通過對比有無支撐施工工況,得到在撓度控制條件下,鋼筋桁架混凝土樓板的最大適用跨度。論文對鋼筋桁架混凝土樓板使用階段分別考慮無底部壓型鋼板、底部壓型鋼板完全受力、考慮底部壓型鋼板有效截面以及在界面焊接節(jié)點(diǎn)抗剪承載力影響下的受力性能,給出了正截面受彎承載力公式,并通過有限元軟件建模分析,與推導(dǎo)出的理論計算公式對比分析,給出計算鋼筋桁架混凝土樓板正截面受彎承載力的推薦公式。根據(jù)有效慣性矩法,計算鋼筋桁架混凝土樓板在使用階段的剛度,并結(jié)合有限元軟件計算結(jié)果,提出了剛度計算公式。本文還建立了無底部壓型鋼板、考慮底部壓型鋼板拼接與不考慮底部壓型鋼板拼接的鋼筋桁架混凝土雙向板使用階段模型,對比分析計算結(jié)果,得到底部壓型鋼板對鋼筋桁架混凝土雙向板使用階段受力的影響規(guī)律。
[Abstract]:The reinforced truss concrete floor slab is a kind of composite floor form that appeared in recent years. It has the advantages of convenient construction, short construction period and wide application scope, and has been widely used in China. However, at present, the understanding of this kind of floor is the same as that of ordinary reinforced concrete, and the analysis and research on its mechanical performance is still relatively few, which also affects the popularization and use of reinforced truss concrete floor. In order to study the mechanical behavior of reinforced truss concrete floor slab, the finite element analysis software is used to model the reinforced truss concrete floor slab, and the static behavior of reinforced truss concrete floor slab is simulated. The effect of bottom profiled steel plate on floor is analyzed and calculated. In this paper, the effect of considering the effective section of the bottom profiled steel plate and the bottom profiled steel plate is compared respectively in the construction stage without the consideration of the bottom profiled steel plate and the consideration of the bottom profiled steel plate. The stiffness formula of reinforced truss concrete floor slab is studied by considering the effective width of bottom profiled steel plate. The paper also studies the mechanical behavior of reinforced truss concrete floor with or without support during construction. By comparing the construction conditions with or without bracing, the maximum applicable span of reinforced truss concrete floor is obtained under the condition of deflection control. In the use of reinforced truss concrete floor, the full force is taken into account without bottom profiled steel plate and bottom profiled steel plate, the effective section of bottom profiled steel plate and the mechanical behavior under the influence of shear bearing capacity of interface welded joints are considered in this paper. The formula of flexural bearing capacity of normal section is given, and the formula of flexural bearing capacity of normal section of reinforced truss concrete floor slab is given by means of finite element modeling and analysis, and compared with the theoretical calculation formula derived from the formula, and the recommended formula for calculating flexural bearing capacity of normal section of reinforced truss concrete floor slab is given. According to the effective moment of inertia method, the stiffness of reinforced truss concrete floor slab in service stage is calculated, and the stiffness calculation formula is put forward in combination with the results of finite element software. In this paper, the model of concrete two-way slab without bottom profiled steel plate is established, and the model of concrete two-way slab without bottom profiled steel plate splicing and without considering bottom profiled steel plate is established, and the calculation results are compared and analyzed. The influence of bottom profiled steel plate on the stress of reinforced truss concrete bidirectional slab is obtained.
【學(xué)位授予單位】：鄭州大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TU398

【引證文獻(xiàn)】

相關(guān)期刊論文 前1條

1 史慶軒;楊超望;;可拆式鋼筋桁架模板截面力學(xué)性能試驗(yàn)和計算方法[J];土木建筑與環(huán)境工程;2016年06期

，

本文編號：2048471