Based on fastener type full steel tubular scaffolds of power transmission and transformation project, this paper discusses in detail the establishment process of three-dimensional finite element model, including steel pipes, semi-rigid connections, mass of fasteners and boundary conditions. The stability of scaffold is analyzed and the failure mode of instability and ultimate bearing capacity are calculated. Then the static analysis is carried out to analyze the displacement and axial force response of the scaffold during construction, and finally the measures to strengthen the stability and safety of the scaffolds are given.

For a nuclear power plant cold source intake interceptor gear style and collection material cleaning needs, parameters and working parameters, the design and selection of various parts of the suction equipment combined with the current situation of the interceptor net, analyzed the feasibility of the interceptor net trash pumping program, and proposed a net interceptor pumping equipment design program with impurity pump as the main body. Through the analysis of environmental parts were completed, and the equipment manufacturing and testing conditions were available, which can improve the efficiency of garbage salvage in normal times and during marine life outbreak, and reduce the risk of on-site operation.

Full tubular scaffolds are widely used in substation engineering. However, full hall steel tubular scaffolds collapse can lead mass casualties without effective safety management. The real-time monitoring system for full hall steel tubular scaffolds can prevent collapse accidents. Aiming at the monitoring demand of full hall steel tubular scaffolds, research on design of real-time monitoring system is carried out. This paper mainly discusses system design principle, system function design and system formwork design. The function design part refines the different function permissions of users in different roles, and the framework design part analyzes the composition of the system and the way of data transmission.

This paper establishes a 3D finite element model of a new-type metal-cooled fast reactor (MCFR) nuclear island plant for applied research of base isolation technology, and the research includes the base isolation scheme for the split base layer structure, the selection from different types of isolation bearings, etc. According to the mechanical characteristics of different isolation bearings and rigidity distribution of the structure itself, the layout of isolation bearing scheme is carried out. Dynamic analysis of nuclear plan has been done based on ANSYS, and the optimal isolation scheme is determined by repeated trial calculation, isolation design schemes adjustment, acceleration and displacement of key nodes comparison. The results show that: applying base isolation design to the nuclear island plant, natural vibration period of the structure increases, acceleration response of the key nodes of the superstructure and displacement between the layers of the structure significantly decreases, seismic resistance of the nuclear island plant is improved significantly; isolation effect of the scheme with multiple types of isolation bearings is much better than that of the scheme with only rubber bearings.

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