一种装配式格构梁护坡结构研究  

Research on a Prefabricated Lattice Beam Slope Protection Structure

作　　者：秦宇 唐小微[1] 李靖[2] QIN Yu;TANG Xiao-wei;LI Jing(Institute of Geotechnical Engineering,Dalian University of Technology,Dalian 116024,China;School of Urban Construction,Wuchang University of Technology,Wuhan 430223,China)

机构地区：[1]大连理工大学岩土工程研究所,辽宁大连116024 [2]武昌理工学院城市建设学院,湖北武汉430223

出　　处：《水电能源科学》2020年第11期105-107,119,共4页Water Resources and Power

基　　金：国家重点研发计划(2018YFC1505300-5.3);湖北省高等学校省级教学研究项目(2016449)。

摘　　要：针对水利工程既有边坡防护结构破损问题,亟需一种快速替换现有护坡结构的轻型结构。对此,提出了一种装配式T型截面格构梁护坡结构,该结构减小了混凝土构件截面尺寸,提高了节点处强度,且可工厂预制,保证质量的同时提高了施工速度。通过对比既有模型试验,建立局部格构梁数值模型,验证了数值模拟的可靠性,及采用提出结构替换现有方形格构的可行性,并得出节点钢结构外伸长度取值为0.075倍跨长时最合理。Aiming at the problem of damage to the existing slope protection structure in water conservancy projects,there is an urgent need for a lightweight structure that can quickly replace the existing slope protection structure.This paper proposes a prefabricated T-section lattice beam slope protection structure,which reduces the cross-sectional size of concrete components,improves the strength at the joints,and can be prefabricated in the factory to ensure quality.It also increases construction speed.By comparing the model tests in the literature,the numerical model of the local lattice beam was established to verify the reliability of the numerical simulation.The numerical simulation shows that it is feasible to replace the existing square lattice with the structure proposed in this paper.The elongation of the structure is most reasonable when it is 0.075 times the span.

关 键 词：护坡结构 装配式格构梁 混凝土损伤模型 数值模拟 

分 类 号：TV334[水利工程—水工结构工程]