Energy Conservation and Environmental Protection

This study investigates the steel structure hoisting and installation challenges beneath a long-span elevated floor in a commercial complex project in Changning District Shanghai. Through comprehensive analysis, we optimized hoisting point layouts and material storage areas. The integrated implementation of tower cranes and mobile cranes, combined with the erection of temporary supports and phased load release protocols, enabled precise positioning of large-span steel structures. This methodology effectively resolved complications including restricted hoisting operations in complex elevated spaces, stringent installation accuracy requirements, and confined construction site conditions. Furthermore, the steel structure installation procedures and technical specifications were concluded. It can provide valuable references for analogous steel construction projects.

Under the pressure of energy shortage and environmental protection, energy-saving transformation of electrical equipment has become an important direction in power engineering. This article analyzes the energy-saving potential of equipment such as transformers, motors, and lighting from both technical and management perspectives. It proposes renovation plans such as reactive power compensation, variable frequency speed regulation, and intelligent monitoring, and explores ways to improve energy-saving benefits. Research can provide theoretical and practical references for the fields of industry and architecture.