兩邊連接鋼—聚氨酯組合剪力墻抗震性能研究
本文選題:新型剪力墻 + 聚氨酯。 參考:《江蘇科技大學(xué)》2017年碩士論文
【摘要】:鋼-聚氨酯組合剪力墻是一種新型結(jié)構(gòu)形式的組合剪力墻,它是將聚氨酯材料注入雙層鋼板中所形成的剪力墻結(jié)構(gòu)。聚氨酯能改善鋼板鼓曲現(xiàn)象,鋼板和聚氨酯兩種材料相得益彰。本文將兩邊連接鋼-聚氨酯組合剪力墻與傳統(tǒng)鋼板剪力墻進(jìn)行對比,系統(tǒng)研究鋼-聚氨酯組合新型剪力墻的靜力性能及抗震性能,主要研究工作和成果如下:1.利用有限元分析軟件ANSYS,分別建立新型剪力墻和普通鋼板剪力墻的數(shù)值分析模型,計(jì)算并對比分析二者在循環(huán)荷載作用下的抗震性能。結(jié)果表明:與普通鋼板剪力墻相比,新型剪力墻具有較高的承載能力和初始剛度,具有更好的耗能能力,證明了新型剪力墻的優(yōu)越性。2.對新型剪力墻進(jìn)行單調(diào)加載有限元模擬分析,研究面板芯材彈模比、聚氨酯厚度、鋼面板厚度和跨高比對其抗剪靜力性能的影響。分析得到:新型剪力墻中面板芯材彈模比宜選取在103以下,鋼面板是主要受力構(gòu)件,鋼面板厚度和剪力墻跨高比越大,新型剪力墻的抗剪靜力性能越好。3.通過改變新型剪力墻的參數(shù),研究聚氨酯厚度、鋼面板厚度、跨高比對新型剪力墻在循環(huán)荷載作用下抗震性能的影響,分析得到:聚氨酯厚度宜取為25mm,隨著鋼面板厚度和跨高比增大,新型剪力墻的抗震性能越優(yōu)。4.給出新型剪力墻的初始剛度和屈服承載力計(jì)算公式,計(jì)算結(jié)果與有限元分析結(jié)果能較好吻合,并簡要介紹了新型剪力墻的簡化模型和設(shè)計(jì)方法,以供設(shè)計(jì)參考。
[Abstract]:The steel polyurethane composite shear wall is a new type of composite shear wall, which is the shear wall structure formed by injecting polyurethane material into the double deck steel plate. The polyurethane can improve the drum drum phenomenon. The steel plate and the two kinds of polyurethane can complement each other. In this paper, the steel and polyurethane composite shear walls are connected with the traditional steel plate shear wall. The static and seismic performance of the new steel - polyurethane composite shear wall are systematically studied. The main research work and results are as follows: 1. the numerical analysis model of the new shear wall and the common steel plate shear wall is established by the finite element analysis software ANSYS, and the aseismic behavior of the two people under cyclic loading is calculated and compared. The results show that compared with the ordinary steel plate shear wall, the new shear wall has higher bearing capacity and initial stiffness, and has better energy dissipation capacity. It is proved that the superiority of the new shear wall.2. has the finite element simulation analysis on the new shear wall, and studies the elastic modulus ratio of the core material, the thickness of the polyurethane, the thickness of the steel plate and the span height. It is found that the elastic modulus ratio of the plate core material in the new shear wall should be selected below 103, the steel plate is the main force member, the thickness of the steel plate and the span height ratio of the shear wall are greater, the better the shear static performance of the new shear wall is.3., through changing the parameters of the new shear wall, the thickness of the polyurethane and the steel plate are studied. The effect of thickness and cross height ratio on the seismic performance of the new shear wall under cyclic loading is analyzed. The thickness of the polyurethane should be taken as 25mm. With the increase of the thickness of the steel plate and the cross height ratio, the better the seismic performance of the new shear wall is.4., the calculation formula of the initial stiffness and the flexion bearing capacity of the new shear wall is given, and the calculation results and the finite element analysis are given. The results are in good agreement, and a brief introduction to the simplified model and design method of the new shear wall is provided for design reference.
【學(xué)位授予單位】:江蘇科技大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:TU973.16
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