摘要
随着城市化的快速发展,城市防洪排涝问题日益凸显。针对过去已建排涝泵站建设标准低、排涝能力下降而新建工程周期长、影响景观等问题,提出一种新型组装式地下排涝泵站,不仅施工周期短且具有结构简单、美化环境等优势。结合工程实际应用该新型泵站,基于ABAQUS建立三维有限元模型,对其结构进行动静力特性分析。结果表明:组装式地下泵站结构有着良好的力学特性,沉降量小且均匀,应力水平较低,结构受力合理,局部拉应力集中区域须进行适量配筋;分析地震工况下结构位移时程响应,结果表明位移响应值较低,振动幅度较小,结构变形量较小,混凝土损伤范围较小,泵站抗震能力较强。
With the rapid development of urbanization,the problems of urban flood control and drainage have become increasingly prominent. In view of the problem that the existing pumping stations＇ drainage capability goes down with a low construction standard but a new project takes a long time and affects landscape,this paper proposed a new assembled underground drainage pumping station with the advantages of quick construction,simple structure,and beautification of the environment. With an application example of the new pumping station,the three-dimensional finite-element model was established based on software ABAQUS and the static and dynamic characteristics of the structure were analyzed. The results showed that the new pumping station has good mechanical properties whose structure has good mechanical properties,with small and uniform settlement,low stress level and reasonable structural force. A proper amount of reinforcement is required in the area of tensile stress concentration. The displacement response in seismic conditions is analyzed. The results show that the displacement response value is low,the vibration amplitude is small,the deformation of the structure is small,and the concrete damage is of small range,which indicates that the pumping station has good anti-seismic performance.
作者
李欣娟
武永新
LI Xinjuan, WU Yongxin(State Key Laboratory of Hydraulic Engineering Simulation and safety, Tianjin University, Tianjin 300072, Chin)
出处
《水资源与水工程学报》
CSCD
2018年第1期138-143,共6页
Journal of Water Resources and Water Engineering
关键词
ABAQUS
组装式
地下
排涝泵站
静力
动力
ABAQUS
assembled
underground
drainage pumping station
static
dynamic
