利用鋼板剪力墻耗能的自復(fù)位結(jié)構(gòu)體系的抗震和復(fù)位性能
發(fā)布時間：2018-11-13 08:57
【摘要】：利用鋼板剪力墻耗能的自復(fù)位結(jié)構(gòu)體系結(jié)合了鋼板剪力墻結(jié)構(gòu)和自復(fù)位結(jié)構(gòu)的優(yōu)點,兼具良好的抗震和復(fù)位性能,應(yīng)用前景廣泛。本文采用蝴蝶型鋼板剪力墻做為自復(fù)位結(jié)構(gòu)體系的耗能器。對于這種新型的結(jié)構(gòu)體系,目前已經(jīng)進(jìn)行了單層結(jié)構(gòu)的研究,為了研究多層結(jié)構(gòu)體系的抗震和復(fù)位性能,本文在結(jié)合國內(nèi)外理論研究的基礎(chǔ)上,提出其簡化模型和建模方法,選取了相關(guān)試驗?zāi)Ｐ瓦M(jìn)行了模擬驗證。從自復(fù)位框架,蝴蝶型鋼板剪力墻的相關(guān)理論入手,研究了結(jié)構(gòu)體系的耗能與復(fù)位機(jī)理。在模擬驗證和理論分析的基礎(chǔ)上建立多層結(jié)構(gòu)體系模型,并進(jìn)行了靜力非線性分析,分析了其抗震和復(fù)位性能以及影響結(jié)構(gòu)體系性能的參數(shù)。選取地震波分析了結(jié)構(gòu)體系在多遇地震,中震和大震下的抗震和復(fù)位性能。結(jié)論如下:(1)采用蝴蝶型鋼板剪力墻耗能的自復(fù)位結(jié)構(gòu)體系的滯回曲線形狀與自復(fù)位結(jié)構(gòu)理論相一致,形狀接近雙旗幟型,且有一定量的層間殘余側(cè)移角。通過計算結(jié)構(gòu)體系能量耗散系數(shù)及層間殘余位移角,表明其具有較好的抗震和復(fù)位性能,可以運用于高層結(jié)構(gòu)體系的抗震中。(2)蝴蝶型鋼板剪力墻及預(yù)拉力鋼絞線對結(jié)構(gòu)體系的抗震和復(fù)位性能都有影響,需要相互匹配。在自復(fù)位框架一定的情況下,鋼板剪力墻的屈服承載力和抗側(cè)剛度有較優(yōu)的取值范圍。無論是鋼絞線的面積還是初始預(yù)拉力,當(dāng)結(jié)構(gòu)體系滿足復(fù)位要求之后,再過量增加對結(jié)構(gòu)體系綜合性能的提升很小。結(jié)構(gòu)體系隨層高的增加耗能性能增加而復(fù)位性能降低,跨度改變對體系耗能性能和復(fù)位性能影響較小。(3)利用鋼板剪力墻耗能的自復(fù)位結(jié)構(gòu)體系在地震作用下的復(fù)位性能較好,最大層間位移角小于各個性能目標(biāo),且在中震和大震作用下結(jié)構(gòu)體系滯回環(huán)都較為飽滿,表明體系抗震性能較好。鋼絞線在地震作用下均保持彈性狀態(tài),為結(jié)構(gòu)體系提供了復(fù)位能力,使結(jié)構(gòu)體系的復(fù)位性能較好。(4)分析表明,本文所提出的利用鋼板剪力墻耗能的自復(fù)位結(jié)構(gòu)體系的抗震和復(fù)位性能較好,可以用于工程結(jié)構(gòu)的抗震中。
[Abstract]:The self-reset structure system with steel plate shear wall energy dissipation combines the advantages of the steel plate shear wall structure and the self-reset structure, and has good seismic and restoration performance, so it has a wide application prospect. In this paper, butterfly steel plate shear wall is used as energy dissipation device of self-reset structure system. In order to study the aseismic and reset performance of the multi-story structure system, the simplified model and modeling method are put forward on the basis of theoretical research at home and abroad. The related test model is selected to be simulated and verified. Based on the theory of self-reset frame and butterfly steel plate shear wall, the energy dissipation and reset mechanism of structural system are studied. On the basis of simulation verification and theoretical analysis, the model of multi-story structure system is established, and the static nonlinear analysis is carried out. The aseismic and reset performance of the model and the parameters affecting the performance of the structure system are analyzed. Seismic wave is selected to analyze the seismic and reset performance of the structural system under frequent earthquakes, moderate earthquakes and large earthquakes. The conclusions are as follows: (1) the hysteretic curve shape of the structure system with butterfly steel plate shear wall dissipation energy is consistent with the theory of self-reduction structure, the shape is close to double banners, and there is a certain amount of residual lateral angle between layers. By calculating the energy dissipation coefficient and the residual displacement angle of the structure system, it is shown that it has better seismic and reset performance. It can be applied to the earthquake resistance of high-rise structure system. (2) Butterfly steel plate shear wall and pretension steel strand have influence on the seismic and reset performance of the structure system and need to match each other. The yield bearing capacity and lateral stiffness of steel plate shear wall have an optimum value range under the condition of self-reset frame. No matter the area of the steel strand or the initial pretension, the improvement of the comprehensive performance of the structural system is very small when the structural system meets the reset requirement. With the increase of the layer height, the energy dissipation performance of the structure system increases, but the reset performance decreases. The change of span has little effect on the energy dissipation performance and reset performance of the system. (3) the self-reset structure system with steel plate shear wall dissipation has better restoration performance under earthquake, and the maximum interstory displacement angle is smaller than each performance target. The hysteretic loop of the structure is full under the action of moderate earthquake and strong earthquake, which indicates that the seismic performance of the system is better. The steel strands maintain elastic state under seismic action, which provides the reset ability for the structural system and makes the structural system have better reset performance. (4) the analysis shows that, In this paper, the self-reset structural system with steel plate shear wall dissipation has good aseismic and reposition performance, and can be used in the seismic resistance of engineering structures.
【學(xué)位授予單位】：蘇州科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TU352.11;TU398.2
本文編號：2328624
[Abstract]:The self-reset structure system with steel plate shear wall energy dissipation combines the advantages of the steel plate shear wall structure and the self-reset structure, and has good seismic and restoration performance, so it has a wide application prospect. In this paper, butterfly steel plate shear wall is used as energy dissipation device of self-reset structure system. In order to study the aseismic and reset performance of the multi-story structure system, the simplified model and modeling method are put forward on the basis of theoretical research at home and abroad. The related test model is selected to be simulated and verified. Based on the theory of self-reset frame and butterfly steel plate shear wall, the energy dissipation and reset mechanism of structural system are studied. On the basis of simulation verification and theoretical analysis, the model of multi-story structure system is established, and the static nonlinear analysis is carried out. The aseismic and reset performance of the model and the parameters affecting the performance of the structure system are analyzed. Seismic wave is selected to analyze the seismic and reset performance of the structural system under frequent earthquakes, moderate earthquakes and large earthquakes. The conclusions are as follows: (1) the hysteretic curve shape of the structure system with butterfly steel plate shear wall dissipation energy is consistent with the theory of self-reduction structure, the shape is close to double banners, and there is a certain amount of residual lateral angle between layers. By calculating the energy dissipation coefficient and the residual displacement angle of the structure system, it is shown that it has better seismic and reset performance. It can be applied to the earthquake resistance of high-rise structure system. (2) Butterfly steel plate shear wall and pretension steel strand have influence on the seismic and reset performance of the structure system and need to match each other. The yield bearing capacity and lateral stiffness of steel plate shear wall have an optimum value range under the condition of self-reset frame. No matter the area of the steel strand or the initial pretension, the improvement of the comprehensive performance of the structural system is very small when the structural system meets the reset requirement. With the increase of the layer height, the energy dissipation performance of the structure system increases, but the reset performance decreases. The change of span has little effect on the energy dissipation performance and reset performance of the system. (3) the self-reset structure system with steel plate shear wall dissipation has better restoration performance under earthquake, and the maximum interstory displacement angle is smaller than each performance target. The hysteretic loop of the structure is full under the action of moderate earthquake and strong earthquake, which indicates that the seismic performance of the system is better. The steel strands maintain elastic state under seismic action, which provides the reset ability for the structural system and makes the structural system have better reset performance. (4) the analysis shows that, In this paper, the self-reset structural system with steel plate shear wall dissipation has good aseismic and reposition performance, and can be used in the seismic resistance of engineering structures.
【學(xué)位授予單位】：蘇州科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TU352.11;TU398.2
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，本文編號：2328624
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