本文選題：生態(tài)復(fù)合墻結(jié)構(gòu)　切入點(diǎn)：新型裝配式混凝土結(jié)構(gòu)　出處：《西安建筑科技大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著我國“建筑工業(yè)化、住宅產(chǎn)業(yè)化”進(jìn)程加快,一批適合我國國情和地域特點(diǎn)的新型裝配整體式混凝土結(jié)構(gòu)體系應(yīng)運(yùn)而生。生態(tài)復(fù)合墻結(jié)構(gòu)主要采用裝配整體式施工方案,由預(yù)制的生態(tài)復(fù)合墻板和混凝土邊緣連接構(gòu)件及樓板裝配現(xiàn)澆而成,在特有的構(gòu)造組合以及不同材料的使用下具有良好的抗震性能;新型裝配式混凝土結(jié)構(gòu)是針對生態(tài)復(fù)合墻結(jié)構(gòu)高度限制(18層以下)而提出,具有施工快捷、連接可靠、耗能減震等優(yōu)勢,采用裝配整體式施工方案,由預(yù)制混凝土板、現(xiàn)澆邊緣約束構(gòu)件及樓板(現(xiàn)澆或疊合)現(xiàn)澆而成。本文在課題組前期研究基礎(chǔ)上,建立兩種裝配式墻體結(jié)構(gòu)宏觀單元數(shù)值模型;對兩種裝配式墻體結(jié)構(gòu)和異形柱框架結(jié)構(gòu)進(jìn)行了隨機(jī)振動(dòng)響應(yīng)分析;通過結(jié)構(gòu)反應(yīng)功率譜增大輸入激勵(lì)幅值,提出基于反應(yīng)功率譜的重要抽樣法,并兩種裝配式墻體結(jié)構(gòu)和異形柱框架結(jié)構(gòu)進(jìn)行動(dòng)力可靠度對比分析。本文主要研究內(nèi)容有:1.提出兩種裝配式墻體結(jié)構(gòu)宏觀單元模型。對于生態(tài)復(fù)合墻結(jié)構(gòu),在彈性階段,將生態(tài)復(fù)合墻板等效為復(fù)合彈性板力學(xué)模型,在彈塑性階段,將生態(tài)復(fù)合墻板等效為等效斜撐力學(xué)模型;對新型裝配式混凝土墻體結(jié)構(gòu)模型,將新型裝配式混凝土墻板等效為改進(jìn)多豎桿力學(xué)模型。試驗(yàn)結(jié)果與數(shù)值分析表明:兩種結(jié)構(gòu)宏觀單元模型均能滿足結(jié)構(gòu)的彈塑性全過程計(jì)算精度要求,可用于兩種裝配式墻體結(jié)構(gòu)的隨機(jī)地震響應(yīng)和動(dòng)力可靠度分析。2.對幾種主要隨機(jī)地震輸入動(dòng)模型進(jìn)行總結(jié)和研究,選取Clough-Penzien模型作為地震動(dòng)輸入模型,進(jìn)行兩種裝配式墻體結(jié)構(gòu)和異形柱框架結(jié)構(gòu)的隨機(jī)地震響應(yīng)分析,探討兩種裝配式墻體結(jié)構(gòu)和異形柱框架結(jié)構(gòu)在四種不同場地類別構(gòu)成的四種地震動(dòng)工況下結(jié)構(gòu)隨機(jī)響應(yīng)。計(jì)算分析結(jié)果表明:兩種裝配式結(jié)構(gòu)位移、速度響應(yīng)遠(yuǎn)小于異形柱框架結(jié)構(gòu),且新型裝配式混凝土結(jié)構(gòu)小于生態(tài)復(fù)合墻結(jié)構(gòu);兩種裝配式結(jié)構(gòu)加速度響應(yīng)遠(yuǎn)大于框架結(jié)構(gòu),新型裝配式混凝土結(jié)構(gòu)大于生態(tài)復(fù)合墻結(jié)構(gòu);兩種裝配式結(jié)構(gòu)位移、速度結(jié)構(gòu)功率譜密度曲線峰值遠(yuǎn)小于異形柱框架結(jié)構(gòu),新型裝配式混凝土結(jié)構(gòu)小于生態(tài)復(fù)合墻結(jié)構(gòu);兩種裝配式結(jié)構(gòu)加速度結(jié)功率譜密度曲線峰值大于異形柱框架結(jié)構(gòu),新型裝配式混凝土結(jié)構(gòu)大于生態(tài)復(fù)合墻結(jié)構(gòu)。3.本文通過對結(jié)構(gòu)反應(yīng)功率譜增大其輸入激勵(lì)幅值,提出結(jié)構(gòu)基于反應(yīng)功率譜的重要抽樣法,并根據(jù)均勻調(diào)制非平穩(wěn)地震動(dòng)模型求得兩種裝配式墻體結(jié)構(gòu)和異形柱框架結(jié)構(gòu)基于首次超越破壞準(zhǔn)則的隨機(jī)反應(yīng)頂點(diǎn)位移動(dòng)力可靠度。計(jì)算分析結(jié)果表明:在概率意義上,新型裝配式混凝土結(jié)構(gòu)性能優(yōu)于生態(tài)復(fù)合墻結(jié)構(gòu),生態(tài)復(fù)合墻結(jié)構(gòu)的性能優(yōu)于異形柱框架結(jié)構(gòu)。
[Abstract]:With the acceleration of the process of "building industrialization and housing industrialization" in our country, a batch of new assembled integral concrete structure system, which is suitable for the national conditions and regional characteristics of our country, came into being. The ecological composite wall structure mainly adopts the assembly integral construction scheme. It is made of prefabricated ecological composite wall panels and concrete edge connecting members and floor slabs assembled and cast-in-place, which has good seismic performance under the special structural combination and the use of different materials. A new type of prefabricated concrete structure is put forward to limit the height of ecological composite wall structure below 18 stories. It has the advantages of quick construction, reliable connection, energy dissipation and shock absorption, etc. The cast-in-place edge restrained member and floor slab (cast-in-place or superimposed) are cast-in-situ. On the basis of the previous research of the research group, two kinds of macro-element numerical models of prefabricated wall structure are established in this paper. The random vibration responses of two kinds of fabricated wall structures and special-shaped column frame structures are analyzed, and the important sampling method based on the response power spectrum is proposed to increase the input excitation amplitude through the structural response power spectrum. The dynamic reliability of two kinds of fabricated wall structures and special-shaped column frame structures are compared and analyzed. The main contents of this paper are: 1.The macroscopical element models of two kinds of fabricated wall structures are put forward. For ecological composite wall structures, in the elastic stage, The ecological composite wall plate is equivalent to the composite elastic plate mechanical model, and in the elastoplastic stage, the ecological composite wall board is equivalent to the equivalent oblique bracing mechanical model. The new fabricated concrete wall slab is equivalent to an improved multi-bar mechanical model. The experimental results and numerical analysis show that the two kinds of macroscopical element models can meet the requirements of the elastic-plastic calculation accuracy of the whole process of the structure. It can be used to analyze the random seismic response and dynamic reliability of two kinds of prefabricated wall structures. 2. Several main random earthquake input dynamic models are summarized and studied. The Clough-Penzien model is selected as the ground motion input model. The random seismic response analysis of two kinds of fabricated wall structures and special-shaped column frame structures is carried out. The random responses of two fabricated wall structures and special-shaped column frame structures under four ground motion conditions with four different site types are discussed. The results of calculation and analysis show that the displacement of the two prefabricated structures is different. The velocity response is much smaller than the special-shaped column frame structure, and the new fabricated concrete structure is smaller than the ecological composite wall structure, the acceleration response of the two fabricated structures is much greater than the frame structure, the new type of prefabricated concrete structure is larger than the ecological composite wall structure. The peak value of power spectral density curve of velocity structure is much smaller than that of special-shaped column frame structure, and the new fabricated concrete structure is smaller than ecological composite wall structure. The peak value of acceleration junction power spectrum density curve of two fabricated structures is greater than that of special-shaped column frame structure, and the new fabricated concrete structure is larger than that of ecological composite wall structure. An important sampling method based on reactive power spectrum is proposed. Based on the uniformly modulated non-stationary ground motion model, the dynamic reliability of random response vertex displacement of two fabricated wall structures and special-shaped column frame structures based on the first transcendental failure criterion is obtained. The results of calculation and analysis show that, in the sense of probability, The performance of the new type of prefabricated concrete structure is better than that of the ecological composite wall structure and the ecological composite wall structure is superior to the special-shaped column frame structure.
【學(xué)位授予單位】：西安建筑科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TU37;TU311.3

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