CAJ | 학술논문

在空间钢桁架上铺混凝土楼板的结构中,钢桁架上弦与楼板采用连接件相连,楼板通过连接件对桁架在平面内及平面外的变形提供约束,这种约束效应的强弱与连接的强弱有关.楼板对桁架的约束效应对桁架自身的动力特性以及桁架在恒载和地震作用下各杆件的内力大小及分布均产生显著影响.通过改变楼板材料的弹性模量大小的方式模拟这种约束效应,对此类结构在恒载和地震作用下的结构反应和各杆件的内力分布进行探讨,得出了一些有益的结论.
재공간강항가상포혼응토루판적결구중,강항가상현여루판채용련접건상련,루판통과련접건대항가재평면내급평면외적변형제공약속,저충약속효응적강약여련접적강약유관.루판대항가적약속효응대항가자신적동력특성이급항가재항재화지진작용하각간건적내력대소급분포균산생현저영향.통과개변루판재료적탄성모량대소적방식모의저충약속효응,대차류결구재항재화지진작용하적결구반응화각간건적내력분포진행탐토,득출료일사유익적결론.
In the structure of spatial steel truss paved with concrete floor, the floor and upper chords are connected by connectors to provide constraints to the truss in the plane and out of plane direction. The magnitude of the constraint effect is determined by the strength of the connection. The constraint effect has significant influence on distribution of internal forces of the truss members under static and dynamic actions. Using the method of varying the elastic modulus of the concrete to simulate the constraint effect of concrete floor on special steel truss under static and dynamic actions, some beneficial ennelusions are drawn to provide reference to similar projects.