交通工程长条形地下结构平面框架计算问题探讨  

Discussion on Calculation of Plane Frame of Long Strip Underground Structures for Transportation Engineering

作　　者：卢恺 Lu Kai

机构地区：[1]上海市交通建设工程安全质量监督站

出　　处：《交通与港航》2024年第S01期17-22,共6页Communication & Shipping

摘　　要：交通工程长条形地下结构具有荷载大、恒载占总荷载比例高、构件截面尺寸及配筋量大、通常采用平面框架计算模型的特点,结合现行设计规范要求,通过典型工程算例对比对这类模型中杆件计算长度取值、节点刚域处理及结构正截面配筋计算中压应力考虑原则对计算结果的影响进行探讨。进而对这一类地下结构的设计计算提出优化建议,提高结构设计经济性及施工便利性,提升交通工程建设碳效益。Long strip underground structures for transportation engineering are characterized by heavy load,high proportion of dead load to total load,large section size and high reinforcement quantity,and usually make use of a plane frame model for calculation.Referring to clause requirements in current design codes,the influence of calculation principle of rod length value,processing method of rigid zone in beam-column node are explored,together with the influence of taking compressive stress into consideration in the calculation of component normal section reinforcement.Thus,optimization suggestions for the design and calculation of such underground structures are proposed to improve economic efficiency and construction convenience,through which the carbon efficiency of transportation engineering construction can be enhanced.

关 键 词：交通工程 地下结构 平面框架计算模型 节点刚域 正截面配筋 压弯构件 

分 类 号：TU3[建筑科学—结构工程]