本文選題：移動式防洪墻 + 材料性能　； 參考：《華北水利水電大學》2017年碩士論文

【摘要】：移動式防洪墻作為一種安裝便捷、美觀的防洪方式在國外較多應用,但在國內為首次應用,其工作性能、施工工藝在國內研究甚少,因此急需對此開展研究,旨在為實際工程提供理論支撐,為工程施工提供參考。本文通過解析進口移動式防洪墻的產品性能,提煉出相應的性能指標,同時專門設計、建造了移動式防洪墻試驗基地,開展移動式防洪墻系統(tǒng)的力學性能試驗分析研究和施工工藝研究。具體包括以下內容:1.根據德國、歐洲標準,進口移動式防洪墻的說明書、檢測報告,對進口移動式防洪墻各部件的材料性能展開研究,解析進口移動式防洪墻的產品性能,提煉出相應的性能指標屈服強度及抗拉強度。2.在移動式防洪墻安裝完成后,分步蓄水至設計標高,測定不同蓄水高度下各部位受力狀態(tài)。實驗結果表明,在蓄水正常后,混凝土基礎埋設鋼筋計受力均不大,在正常蓄水位1.8m時,最大拉應力為0.87MPa,遠小于鋼筋抗拉強度,混凝土基礎未出現裂縫,結構安全可靠。3.通過立柱錨固試驗區(qū),對單獨立柱進行靜力試驗,逐級加載至設計荷載,試驗結果表明,立柱及基礎的變位及應變正常,立柱及基礎外觀無裂縫產生,加載過程中立柱應變隨荷載變化,均呈現直線分布,處于彈性階段,可以保證防洪墻正常運行。有限元仿真結果表明,6種工況組合中流速+撞擊+溢流三種荷載組合螺栓承受的總剪力最大,擋板跨中撓度最大,為最危險工況,可根據此工況基礎受力進行配筋。4.通過不銹鋼預埋件、鋁合金相關規(guī)范引讀,結合工程施工現場情況,提出預埋件安裝的兩種方法:1)預留槽孔安裝法,2)直接安裝法。在試驗基地對兩種安裝方法進行試驗,結果表明:第一種方法能夠在預埋件不能按期進場的情況下,滿足形象進度及工期要求,第二種方法適用于預埋件按時進場,與基礎鋼筋混凝土通過鋼筋提前固定,整體澆筑效果好。在試驗基地建成后,對移動式防洪墻系統(tǒng)的立柱擋板進行實地的安裝測試,結果表明這種型式的防洪墻安裝方便,效率高。
[Abstract]:As a convenient and beautiful flood control method, mobile flood control wall is widely used in foreign countries, but it is the first application in China. The research on its working performance and construction technology is very few in China, so it is urgent to carry out research on it. The aim is to provide theoretical support for practical engineering and provide reference for engineering construction. In this paper, by analyzing the product performance of imported movable flood control wall, the corresponding performance indexes are refined, and the test base of mobile flood control wall is designed and built. The mechanical performance test and construction technology of mobile flood control wall system are studied. This includes the following: 1. According to the German and European standards, the specifications and testing reports of imported mobile flood control walls, the material properties of various components of imported mobile flood control walls are studied, and the product performance of imported mobile flood control walls is analyzed. The yield strength and tensile strength. 2. After the installation of the movable flood control wall, the loading state of each part under different storage height was measured by step to the design elevation. The experimental results show that after the water storage is normal, the stress of the reinforced gauge embedded in the concrete foundation is not large, and the maximum tensile stress is 0.87 MPa when the normal storage water level is 1.8 m, which is far less than the tensile strength of the steel bar, and there is no crack in the concrete foundation, and the structure is safe and reliable. The static test of single column is carried out in the anchor test area, and the load is loaded to the design load step by step. The test results show that the displacement and strain of the column and foundation are normal, and there are no cracks in the appearance of the column and foundation. In the loading process, the strain of the columns varies with the load, and all of them are linear distribution, and they are in the elastic stage, which can ensure the normal operation of the flood control wall. The finite element simulation results show that the combined bolt bearing the maximum total shear force and the maximum midspan deflection of the baffle is the most dangerous condition, and the reinforcement. 4 can be carried out according to the stress on the basis of the working condition. Through the introduction of relevant codes for stainless steel embedded parts and aluminum alloys, and combined with the construction site, two methods of installation of the embedded parts are put forward: one is the reserved slot installation method and the other is the direct installation method. The results show that the first method can meet the requirements of image schedule and time limit when the embedded parts can not come into the field on time. The second method is suitable for the embedded parts to enter the field on time. With the foundation reinforced concrete fixed in advance through the reinforcement, the overall pouring effect is good. After the construction of the test base, the installation test of the vertical column baffle of the mobile flood control wall system is carried out. The results show that this type of flood control wall is easy to install and high efficiency.
【學位授予單位】：華北水利水電大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TV32;TV52

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