Building Structure

Highway traffic system is an important infrastructure of the city and one of the key elements of urban sustainable development. However, for a long time, the concepts and methods of highway traffic planning and management are relatively lagging behind, leading to the serious traffic congestion, environmental pollution, energy consumption and land use conflict problems in the highway traffic system. Therefore, it is necessary to re-examine the traditional concepts and methods of highway traffic planning and management, and formulate a more scientific and reasonable highway traffic planning and management scheme from the perspective of sustainable development.

Under the current background of The Times, China's economic and social development presents a good situation, the construction of transportation infrastructure has been better developed, and the highway transportation industry has made outstanding achievements. At the present stage, the highway transportation industry has become an important pillar industry of China's national economy, and is an important guarantee to promote economic growth and facilitate people's travel. Highway transportation infrastructure is an important foundation for China's national economic and social development, especially in the process of "Belt and Road" construction, highway transportation infrastructure has played a vital role. Under the influence of the increasing number of expressways and heavy-haul transport vehicles, there are also some problems in the highway traffic infrastructure. Therefore, this paper studies and analyzes the health monitoring and maintenance strategy of highway structure, aiming to provide some reference for further improving the health monitoring and maintenance work of highway structure in China.

Quality management and technological innovation in concrete structure construction is a complex and systematic process, which requires comprehensive measures from multiple perspectives to ensure construction quality. Through continuous technological innovation and quality management practices, the overall quality of concrete structure construction can be effectively improved, contributing to the sustainable development of the construction industry.

Architectural design and construction should be harmonious with nature. Green building is a new architectural concept put forward on the basis of the concept of sustainable development. The design of green building requires that on the premise of following the concept of sustainable development, the use of more scientific architectural design scheme, through the comprehensive consideration of ecological and environmental factors, the use of advanced technology to ensure the effective improvement of resource and energy utilization efficiency and environmental protection performance in the process of construction engineering.

Highway tunnel is an important part of highway engineering, and its safety detection and management play a pivotal role in the construction and maintenance process of the whole project. However, due to the particularity of the tunnel itself, the engineering quality is difficult to guarantee, and there are many safety risks. With the continuous development of China's traffic industry, there are more and more highway tunnel construction, so safety detection and management is particularly important.

In recent years, due to the rapid growth of traffic volume, the use frequency and load of Bridges have been significantly increased, and the service state of the bridge structure has deteriorated sharply. At present, there is no corresponding standard specification for the health monitoring and maintenance of Bridges in China, so the safety, durability and normal performance of Bridges are still the focus of people's attention. This paper summarizes the research results of health monitoring and maintenance at home and abroad, summarizes and analyzes the highway bridge health monitoring and maintenance, and introduces the bridge health monitoring system in China.

Recently, during the commissioning period of a 350MW DC boiler in a certain power plant, multiple abnormal situations occurred, which are relatively rare. For example, in normal operation, when the oil pressure of the supply fan suddenly rises to 10MPa full range, the moving blades of the supply fan cannot be adjusted, resulting in an automatic decrease in fan output, negative pressure fluctuations, and a decrease in unit load; Oil leakage in the control oil pipe of the air supply fan, causing a decrease in system oil pressure; A large amount of steam leakage occurs in the water valve of the warm valve; Leakage and other issues with the cooling water control valve of the superheater. Serious impact on the safe operation of the unit. Through summary and analysis, the root cause problem was ultimately discovered and thoroughly solved. This article mainly summarizes the analysis of abnormal causes and the sharing of experience in the handling process.

Aiming at the shortcomings of the current particle dampers and the needs of civil engineering vibration damping, while considering the damping in the non-ideal inertial vessel, a new type of non-ideal particle tuned inerter damper (NPTID) is proposed. Firstly, the construction and technical realization of NPTID are introduced, the mechanical model of NPTID is proposed based on the principle of energy dissipation by particle collision, and the motion control equations of the single-degree-of-freedom structure with an additional NPTID are established; then three natural seismic waves and one artificial seismic wave are selected as the external excitations, and the damping performance of the NPTID is analyzed; finally, the influence of key parameters on the control effect of the NPTID is investigated by parametric analysis. The results show that NPTID has good control effect, and can realize the reduction ratio of more than 43% by utilizing a 0.1% particle mass ratio.

This article explores the feasibility of using aluminum profiles to design a new type of foldable scaffolding system. To verify the ultimate bearing capacity and failure mode of structural node connectivity points, mechanical performance tests were conducted on the tensile strength of cast aluminum and angle iron nodes to clarify the ultimate bearing capacity and failure mode of the nodes, providing a reference for using aluminum profiles to make new types of scaffolding.