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      저자 : Zhenke Xin (검색결과 1 건)
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        Study on Mechanical Properties of Press-Bending Members Based on Transmission Towers Diagonal Member Reinforcement In-Situ

        Zhenke Xin,Huanhuan Wei,Yunhe Liu,Gang Liang 한국강구조학회 2022 International Journal of Steel Structures Vol.22 No.4

        According to the reinforcement requirements of load-bearing members of existing transmission tower, a new type of in-situ reinforcement scheme for the angle steel T-shaped composite section is proposed. Through the compression test of 10 groups of members, the infl uence of slenderness ratio, the number of fi xtures, the number of bolt rows and other parameters on the failure mode and bearing performance of members was studied. A simulation model was established using ABAQUS software, the load-displacement curve, failure models and other aspects verify the reliability and validity of simulation results. The results show that when the slenderness ratio of member reaches a certain value, the ultimate bearing capacity of member reinforced with the reinforcement angle steel of same specifi cation and strength can be multiplied and increased several times, the slenderness ratio has little eff ect on the force transmission effi ciency of reinforcement angle steel. The number of bolt rows has a small eff ect on the ultimate bearing capacity of member, the increase rate of ultimate bearing capacity, the failure mode and the force transmission effi ciency of reinforcement angle steel, the infl uence of strength of reinforcement angle steel, the specifi cation of reinforcement angle steel on the ultimate bearing capacity, and the increase rate of ultimate bearing capacity of member obviously, the higher strength and specifi cation of reinforcement, the greater the ultimate bearing capacity of reinforced member, and the higher the rate of improvement of ultimate bearing capacity, the smaller the thickness of fi ller plate, that is the smaller the eccentricity, the higher force transmission effi ciency of reinforcement. The research results can provide experimental and theoretical basis for the reinforcement of tower structure and engineering design.

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