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江   峰 ， 蘇   麒

（ 中化學交建同安產城融合建設（ 安慶） 有限公司 ，安徽 安慶 246000)

摘   要 ：異型節點作為傳遞建筑結構內力的樞紐 ，滿足受力要求是結構安全的重要保證 。為了精準還原異  型節點的力學特征 ，提出鋼結構建筑異型節點極限承載特征多尺度非線性數值模擬方法 。考慮幾何結構 、材料  屬性等因素 ，構建鋼結構建筑異型節點的非線性有限元模型 。模擬異型節點荷載施加過程 ，多尺度分析節點的  受力機理 。從抗剪和抗彎兩個方面 ，計算異型節點的極限承載力 ，輸出異型節點的極限承載特征數值模擬結果。 結果表明 ，與傳統數值模擬方法相比 ，優化設計方法的極限承載力模擬誤差降低了 1 . 88 N ,  本文方法的應用能  夠有效控制異型節點的失穩概率。

關鍵詞 ：鋼結構建筑 ；異型節點 ；極限承載特征 ；多尺度模擬 ；非線性數值模擬

中圖分類號 ：TU391           

       文獻標志碼 ：A            

文章編號 ：1005- 8249  (2024)   01- 0134- 06

DOI : 10. 19860/j . cnki . issn1005- 8249. 2024. 01 . 023

 

 

JIANG Feng ,  SU Qi

( CNCCC -Tongan City-Industry Integration Construction  ( An qing)   Co.  ，Ltd. ，Anqing 246000 ,  China)

Abstract:As the hinge to transfer the internal force of the building structure, the special-shaped joint is an important guarantee for the safety of the structure to meet the stress requirements. In order to accurately restore the mechanical characteristics of special-shaped joints, a multi-scale nonlinear numerical simulation method is proposed for the ultimate bearing characteristics of special-shaped joints in steel structures. Considering geometric structure, material properties and other factors, a nonlinear finite element model of special-shaped joints in steel structure buildings is built. The loading process of special-shaped joints is simulated, and the mechanical mechanism of joints is analyzed at multi-scale. The ultimate bearing capacity of special-shaped joints is calculated from the aspects of shear resistance and bending resistance, and the numerical simulation results of the ultimate bearing characteristics of special-shaped joints are output. The results show that compared with traditional numerical simulation methods, the simulation error of the ultimate bearing capacity of the optimized design method has been reduced by 1.88N; The application of this method can effectively reduce the probability of instability of irregular nodes.

Keywords:steel structure building; special node; ultimate bearing characteristics; multi scale simulation; nonlinear numerical simulation;

作者簡介 ：江峰  ( 1985—) ,   男 ，本科 ， 高級工程師 ， 主要研究方向 ：建設工程安全管理與風險管理 ；建筑業安全文化與安 全行為 ；建設工程 、低碳建筑與綠色施工 ；弱形式求積元法的發 展與應用。

通信作者 ：蘇麒  ( 1987—) ,   男 ，本科 ， 高級經濟師 ， 主要研究方向： 系統工程學的發展與應用 ；企業全面風險管理 ；管理 系統的建模 、優化與仿真 ；工程項目管理。

收稿日期 ：2023- 10-25