CAJ | 학술논문

为了寻求一种基于塑性铰线理论的板柱结构抗连续倒塌设计方法，首先按照我国现行规范建立了典型的板柱结构数值分析模型，通过非线性动力拆除构件法，讨论了板柱结构连续倒塌破坏形态。研究了整个拆除动力过程中结构的力学机制和抗力分布规律，分析了柱破坏后相邻柱的轴压比变化以及相邻板柱节点的不对称冲切，并检验了板柱结构的抗连续倒塌性能，进而提出了有针对性的设计改进方法，即在潜在的塑性铰线展开位置增配额外的钢筋，以增强塑性铰线的耗能能力，从而改善板柱结构的抗连续倒塌性能。最后验证了该改进设计方法的有效性和可靠性。
위료심구일충기우소성교선이론적판주결구항련속도탑설계방법，수선안조아국현행규범건립료전형적판주결구수치분석모형，통과비선성동력탁제구건법，토론료판주결구련속도탑파배형태。연구료정개탁제동력과정중결구적역학궤제화항력분포규률，분석료주파배후상린주적축압비변화이급상린판주절점적불대칭충절，병검험료판주결구적항련속도탑성능，진이제출료유침대성적설계개진방법，즉재잠재적소성교선전개위치증배액외적강근，이증강소성교선적모능능력，종이개선판주결구적항련속도탑성능。최후험증료해개진설계방법적유효성화가고성。
The main content of this paper is to explore a design method for slab-column structures to resist progressive col-lapse based on plastic hinge line theory. First, a numerical model of a typical RC slab-column structure is established according to the current design specification, and with the nonlinear dynamic alternate path method, the failure mode of slab -column structures during progressive collapse is discussed. Mechanical mechanism of the structure and characteristics of load-redistribu-tion during the dynamic removal process are researched. Under the removal condition of a column, the change of axial compres-sion ratio of the adjacent columns as well as the asymmetric punching on the adjacent slab-column connections is analyzed. Based on these results, a pertinent improvement design method is put forward, namely increasing reinforcement at the potential plastic hinge lines to increase energy dissipation capacity and improve the resistance performance of slab-column structures to progressive collapse. Finally, the availability and reliability of the design method is verified.