本文選題：型鋼混凝土　切入點：栓釘連接件　出處：《寧波大學(xué)》2013年碩士論文

【摘要】：本文制定了一套合理可行的帶栓釘連接件的型鋼混凝土縱向剪力傳遞性能的試驗測試和研究方案，從帶栓釘連接件的型鋼混凝土結(jié)構(gòu)理論分析入手，在型鋼混凝土推出試驗的基礎(chǔ)上分析和研究了帶栓釘連接件的型鋼混凝土縱向剪力傳遞機理。 設(shè)計了15個帶栓釘連接件的型鋼混凝土短柱在單調(diào)荷載下的推出試驗及1個自然粘結(jié)試件的對比試驗，根據(jù)帶栓釘連接件的型鋼混凝土受力性能，在試件加載端與自由端放置了位移傳感器進行端部位移測量，部分試件型鋼表面粘貼電阻應(yīng)變片以測量型鋼沿縱向的應(yīng)力分布，并在試驗過程中對裂縫的分布及發(fā)展規(guī)律進行記錄，較全面地研究了帶栓釘連接件型鋼混凝土試件的破壞形態(tài)、裂縫模式、荷載-滑移特性、型鋼應(yīng)變分布、剪力傳遞承載力等特性。并比較型鋼表面與混凝土隔離試件以及未隔離試件的承載力，確定不同破壞模式下型鋼與混凝土的自然粘結(jié)以及栓釘?shù)目辜糇饔迷诳v向剪力傳遞中各自的貢獻和二者的組合效應(yīng)。 參考國內(nèi)外已有的研究成果，，在確定了型鋼和混凝土材料的本構(gòu)關(guān)系的基礎(chǔ)上，運用有限元分析軟件ANSYS，通過對試驗試件進行計算分析，驗證計算模型的正確性。然后利用建立的模型對不同試件內(nèi)部型鋼應(yīng)力分布、箍筋應(yīng)力發(fā)展及混凝土裂縫形態(tài)進行分析，最終形成一套完整的帶栓釘連接件的型鋼混凝土ANSYS有限元分析的建模、運算和分析方法。在試驗結(jié)果和計算分析結(jié)果的基礎(chǔ)上，推導(dǎo)出帶栓釘連接件型鋼混凝土推出試件的抗剪承載力計算方法及具體的防止栓釘外側(cè)混凝土劈裂破壞的構(gòu)造措施。
[Abstract]:In this paper, a set of reasonable and feasible test and research scheme of longitudinal shear transfer performance of steel reinforced concrete with stud connectors is established, and the theoretical analysis of steel reinforced concrete structure with studs is carried out.Based on the rolling test of SRC, the longitudinal shear force transfer mechanism of SRC with stud joint is analyzed and studied.Based on the mechanical behavior of steel reinforced concrete (SRC) with studs, 15 STRC short columns with stud connections were designed under monotonic load and 1 natural bonded specimen was tested.Displacement sensors are placed at the loading end and free end of the specimen to measure the displacement of the end, and the resistive strain gauges are pasted on the surface of some specimens to measure the longitudinal stress distribution of the steel.In the course of the test, the distribution and development of cracks are recorded, and the failure pattern, crack mode, load-slip characteristics, strain distribution of section steel are studied comprehensively.Shear transfer bearing capacity and other characteristics.And compare the bearing capacity of steel surface with concrete isolated specimen and unisolated specimen,The contribution and combination effect of the natural bond between steel and concrete and the shear resistance of bolt in longitudinal shear transfer under different failure modes are determined.Referring to the existing research results at home and abroad and on the basis of determining the constitutive relations of the steel and concrete materials, the correctness of the calculation model is verified by using the finite element analysis software ANSYS. through the calculation and analysis of the test specimens.Then, the stress distribution, stirrups stress development and crack morphology of different specimens are analyzed by using the established model. Finally, a set of ANSYS finite element analysis models of SRC with stud connections are established.Methods of calculation and analysis.On the basis of the experimental results and the results of calculation and analysis, the calculation method of shear bearing capacity of steel reinforced concrete (SRC) with stud connections and the concrete structural measures to prevent the splitting failure of concrete outside the bolt are derived.
【學(xué)位授予單位】：寧波大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：TU398.9

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