本文選題：裝配式結(jié)構(gòu) + 拼裝柱　； 參考：《華僑大學(xué)》2013年碩士論文

【摘要】：為適應(yīng)我國高層建筑產(chǎn)業(yè)工業(yè)化發(fā)展的需求，在鋼筋混凝土柱-鋼梁(Reinforced concrete column-steel beam, RCS)混合框架結(jié)構(gòu)這一新型結(jié)構(gòu)形式基礎(chǔ)上，，提出一種在柱中反彎點附近拼裝的RC柱-柱拼裝節(jié)點。該拼裝節(jié)點由下柱的杯口定位，通過榫柱連接，焊接縱筋，后澆拼裝段，以實現(xiàn)結(jié)構(gòu)沿豎向拼裝。該拼裝節(jié)點拼裝效率高、性能可靠。 本文完成了7個足尺拼裝柱軸壓性能試驗和1個偏壓性能試驗，重點開展了以下四方面研究工作：(1)拼裝柱后澆前軸壓及偏壓性能試驗；(2)后澆段不同養(yǎng)護時間下，拼裝柱軸壓性能試驗，重點研究拼裝柱在不同階段的施工性能；(3)分析了拼裝柱軸壓性能的抵抗機理，推導(dǎo)了拼裝柱的軸壓承載力計算公式；(4)提出了相關(guān)設(shè)計和施工建議。試驗研究表明：拼裝柱后澆前，軸心抗壓承載力為2564kN，為整澆RC柱承載力的46.2%；RC柱拼裝節(jié)點軸心抗壓承載力略低于整澆柱，并隨后澆段養(yǎng)護時間的增加而增加；與整澆柱的整體壓潰不同，RC柱拼裝節(jié)點的破壞形態(tài)為上部榫柱“擠入”下部后澆部分，導(dǎo)致下部后澆部分向外膨脹，并最終發(fā)生劈裂破壞，破壞過程有明顯預(yù)兆，表現(xiàn)出較好的延性。 完成了6個足尺拼裝柱抗剪及抗彎性能試驗，重點研究了拼裝段配箍構(gòu)造對拼裝柱抗剪性能的影響和拼裝構(gòu)造對試件抗彎性能的影響�？辜粜阅茉囼灲Y(jié)果表明，RC柱拼裝節(jié)點抗剪強度隨拼裝段箍筋數(shù)量的增加而提高，拼裝段設(shè)置2道復(fù)合箍即可保證試件抗剪強度高于整澆柱�？箯澬阅茉囼灲Y(jié)果表明，拼裝試件屈服承載力比整澆試件提高5.3%，且拼裝試件彎曲剛度與整澆試件基本相同，可滿足使用要求。
[Abstract]:In order to meet the needs of industrialization development of high-rise building industry in China, a new type of RC column-column assembly joint is proposed on the basis of reinforced concrete column-steel beam (RC) hybrid frame structure, which is assembled near the reverse bending point in the column. The joint is located by the cup mouth of the lower column, joined by tenon post, welded longitudinal reinforcement and cast-in-place assembly section after pouring, so that the structure can be assembled along the vertical direction. The assembly node has high efficiency and reliable performance. In this paper, seven full-scale column axial compression tests and one bias performance test have been completed. The following four aspects of research work have been carried out emphatically: 1) Pre-axial compression test and biasing compression performance test of post-pouring column with different curing time. This paper analyzes the resistance mechanism of the axial compression performance of the assembled columns, deduces the formula for calculating the axial compression capacity of the assembled columns, and puts forward the relevant design and construction suggestions. The experimental results show that the axial compression bearing capacity is 2564kN before post-pouring, which is a little lower than that of cast-in-place RC column assembly joints, and then increases with the increase of curing time of cast-in-place section. Different from the integral crushing of the cast-in-place column, the failure pattern of the RC column assembly joint is that the upper tenon column "squeezes" into the lower part of the post-pouring part, which causes the lower part of the post-pouring part to expand outwards, and finally the splitting failure occurs, and the failure process has obvious foreboding. It shows good ductility. The shear and flexural properties of six full-scale assembled columns were tested, and the influence of the hoop structure on the shear resistance and the flexural behavior of the assembled columns were studied. The results of shear test show that the shear strength of the joints of RC columns increases with the increase of stirrups, and the shear strength of the joints is higher than that of cast-in-place columns. The results of flexural properties test show that the yield bearing capacity of the assembled specimens is 5.33% higher than that of the cast-in-place specimens, and the bending stiffness of the assembled specimens is basically the same as that of the cast-in-situ specimens, which can meet the requirements of application.
【學(xué)位授予單位】：華僑大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：TU973.2

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本文編號：2010888