【作者】 张丽；

【导师】 熊进刚； 杨涛；

【作者基本信息】 南昌大学 ， 建筑与土木工程（专业学位）， 2017， 硕士

【摘要】 随着经济的快速发展和科学技术的进步,大跨钢结构在工程中的应用越来越多,钢结构的结构构造体系也向着新颖化、复杂化和规模化的方向发展。由于钢结构施工过程中需要在现场进行吊装和拼接,节点工程较多,不稳定因素也相伴而生,所以对大跨度钢结构工程实施监测是必不可少,它是钢结构工程施工质量和安全的保障。本文首先分析总结大跨钢结构施工的方法,研究在施工过程中监测系统的构成及监测技术的作用。结合某市大跨钢结构滑雪场工程的施工,通过建立控制网、控制轴线、标高控制与传递、内控制点投侧等方法,得出钢结构施工过程中构件的位移、沉降值、挠度值、应力/应变值,根据各项监测数据,分析构件的位移、应力/应变产生的原因,及对施工的影响。通过使用监测技术和无线网络传感技术,实时在线监测大跨钢结构施工中的各项数据,及时进行数据分析,纠正在施工过程中钢柱的扭转、错位与垂直度的偏差等,为后续各个阶段主要构件、关键节点安装施工提供有力保障,将施工监测值与设计值进行实时对比、分析,对可能出现的险情及时预警,做到科学设计、信息化施工管理,保障工程的质量和安全。更多还原

【Abstract】 With the rapid development of economy and the progress of technology,large-scale steel structures are increasingly applied in engineering.With the advance of large-span construction,the structural system of steel structure is developing towards being new,complex and in large scale.In its construction process,filed hoisting and stitching are needed,so engineering monitoring technology is essential,it is the guarantee of quality and safety in the process of steel-structured engineering construction.This paper firstly analyzes and summarizes the method of large-span steel structure,and studies the composition of monitoring system and the role of monitoring technology in the construction process.By Combining with the construction of a large span steel structure ski project in the city and establishing the methods such as control network,axis control,level control in the basis as well as the techniques of transmitting and the investment side of the control points,It is obtained that displacement,settlement value,deflection value in the process of construction of steel structure.Through the use of wireless network monitoring technology and sensor technology,we can real-time online monitor the data of large span steel structure,analyze data timely,correct the torsion of steel column in the process of construction,dislocation and verticality deviation,which can provide a strong guarantee for subsequent stages.The construction monitoring value and design value in real time contrast,analysis,the possible danger in a timely warning,which can help to achieve scientific design,information construction management,to ensure the quality and safety of the project.更多还原