With the continuous improvement of people's material living standards, the actual demand for buildings has gradually begun to show an intelligent and diversified development trend. In order to meet this demand, it is necessary to improve and perfect the existing building structure. Modern large-scale buildings have higher requirements for civil structures, which have a direct impact on the safety, reliability and stability of buildings. The application of intelligent civil structure conforms to the development trend of the times, makes up for the defects and deficiencies of traditional building structures, and plays a vital role in improving the performance and quality of buildings.
1 Introduction to Intelligent Civil Structure
Intelligent civil structure is an important product of the continuous development of science and technology and modern structure. At present, mankind has stepped into the information society, and in the process of producing information materials, the integration of manufacturing and design has been gradually realized. These changes also provide creative inspiration and power source for civil engineers. In recent years, in the process of designing building structure, people no longer pay attention to its durability, but require it to have certain analytical ability, computational ability and perceptual ability. Through the continuous optimization and adjustment of these capabilities, the self-adjustment and control of the building structure can be realized. To this end, designers also try to help the building structure achieve this goal through sensors, signal amplifiers and control circuits.
The so-called intelligent building structure requires that the building can carry out self-diagnosis and self-adjustment through in-depth analysis, which is also called "self-repair ability". A building with this function can adjust and change the stress distribution, stiffness and strength of its own structure, thus improving the whole building. Intelligent civil structure endows the building with certain self-adjustment ability, which is precisely the concrete embodiment of its intelligence. Give full play to the advantages and characteristics of information materials, and meet the actual needs of people for architecture in today's era [1].
2 intelligent civil structure classification
In the specific application process, intelligent civil structures can usually be divided into the following categories: First, intelligent material coupling structures. The structure makes full use of some characteristics of structural materials, and when these characteristics are detected, the changing characteristics of the structure can be clearly defined, thus realizing the self-adjustment of the structure. Second, the embedded intelligent civil structure. Its main principle is: put the sensor into reinforced concrete, and optimize and adjust the structure of the building through some material instruments, computers, software and hardware. In the concrete implementation process, the structure is mainly improved and adjusted on the basis of the traditional structure, and it is not necessary to analyze and study the original performance of the building, and it is directly transferred from the traditional structure to the intelligent structure, which fully meets the actual needs of residents. There are some differences between the above two intelligent civil structures. For example, the embedded intelligent civil structure needs to make full use of information materials, while the intelligent material coupling structure pays more attention to the characteristics of raw materials used in the building itself.
But their ultimate goals are basically the same. In addition to the two mentioned above, combined with the differences of intelligent civil structures, they can be divided in detail, and these structures all belong to the category of intelligent concrete. Functionally, it can be divided into stress and strain self-diagnosis, self-healing function, self-diagnosis function, life early warning function and damage self-diagnosis function. This classification method can generally judge its structural performance from its name. In the specific application process, designers can choose the most suitable civil structure according to the actual needs of the project, so as to maximize its advantages and specialties [2].
3 intelligent civil structure in the modern building structure application status
3. 1 application of intelligent sensor
In civil engineering, technicians often add the application analysis of intelligent civil structures in modern building structures to building structures. Application and Analysis of Fintelligent Civil Structure Rein Moder Nar Architectural Structure (Shandong Jianzhu University, Jinan, Shandong, 250 10 1) Abstract: As a big building country, with the continuous improvement of national economic level, people pay attention to the safety, convenience and comfort of living and working environment, so as to realize the health inspection of buildings. While ensuring the accuracy of the results, it is necessary to comprehensively evaluate the safety and stability of the building and ensure the accuracy of the data in order to be practical for the building. For some large-scale engineering buildings, because of the long construction time and outdated equipment, it is often inconsistent with the actual situation if sensors are added here. At this time, it is necessary to select a sensor with strong performance (as shown in figure 1) for structural inspection. The sensor made of optical fiber intelligent material has strong performance. Applying it to civil engineering can get twice the result with half the effort, which provides a new opportunity for the development of civil engineering.
For example, connecting optical fiber to concrete as a sensing element can realize automatic early warning, detection and control of vibration, deformation, damage, cracks and corrosion of building structures. At the same time, driving elements can be added to effectively integrate with the information processing system to form an intelligent concrete structure and realize the functions of self-detection, self-repair and self-diagnosis of buildings. At present, the practical application of this technology in foreign countries has achieved remarkable results, and optical fiber materials have gradually become the ideal materials for designing sensors in vibration automatic control and health diagnosis of civil engineering structures. With the continuous improvement of application effect, this material is also widely used in safety measurement and health monitoring of dam projects, which provides a good guarantee for the safety and stability of buildings. For example, a steel structure building in Guangzhou is built on a deep soft soil foundation, which is mainly muddy soil with poor mechanical properties. The excavation depth of foundation pit is 1 1m, and the I-beam is about 25m. This project mainly uses distributed optical fiber sensing technology to optimize and transform H-beam, improve its deformation sensing ability, and realize real-time acquisition of horizontal position, bending moment and strain data of H-beam, as shown in Figure 2.
3.2 Modern building energy-saving technology
The application of intelligent civil structure not only provides a good guarantee for the improvement of building safety detection performance, but also provides a large number of energy-saving technologies, which can be popularized in future practice and development. Through the application of this structure, the energy-saving consciousness of architectural engineers has also been improved. The so-called energy-saving building refers to the unified use of energy-saving appliances and materials in the process of construction and design, and the application of intelligent civil structures gives the building the ability of self-monitoring, so that it can flexibly respond to changes in the external environment and minimize energy consumption. The practical application of intelligent civil structure provides strong technical support for energy-saving buildings, accelerates the realization of green building goals, and lays a good foundation for building a sustainable and environment-friendly society [3].
3.3 Engineering Health Monitoring
The application of intelligent civil structure in building engineering plays a vital role in health detection and structural damage. In civil engineering, building inspection is often mainly based on visual inspection, and at the same time, it will also assist acoustic emission, X-ray, ultrasonic and other technologies. Through the application of this method, many defects can be effectively avoided, and the damage of building structures can be dynamically monitored, which not only meets people's actual needs, but also ensures the accuracy and efficiency of the detection results. For example, when a building is destroyed, its internal structure will rupture accordingly. Under the influence of external force, the damage intensity usually increases, and these changes will be sensed by sensors, so that the staff can grasp and understand the actual situation of the building for the first time, and take targeted adjustment measures on this basis to effectively avoid casualties caused by safety accidents in the building. A large number of investigation data show that shape memory alloys have high phase transformation resilience, up to 400MPa.
Based on the above characteristics, passive energy dissipation control system with deformation ability and passive energy dissipation device of memory alloy can be developed to realize seismic control of civil engineering structures. In the process of concrete application, these structures are usually installed at the bottom or between floors of the structure, so that when the building structure is deformed, it will be quickly sensed by the energy dissipator, thus consuming earthquake energy to the maximum extent. According to the investigation, installing memory alloy energy dissipators in building structures can absorb about 60% of earthquake energy, effectively restraining the displacement and deformation of building structures. At present, in many foreign countries, the equipment has been applied to the earthquake-proof and seismic design of buildings, and the effect is remarkable.
4 Effective measures to improve the application effect of intelligent civil structures
4. 1 Improve the level of intelligent perception
In modern building structures, in order to maximize the application effect of intelligent civil structures, the primary task is to improve the level of intelligent sensing technology. Therefore, it is necessary to optimize the performance of the sensor. From the standpoint of bionics, for modern architecture, the sensor is equivalent to an organ of itself. In order to improve the perception ability of the whole building, it is necessary to improve the level of sensing technology, start from the direction of systematization, strengthen the processing ability, recognition ability and perception ability of sensors, and on this basis, enhance the sensitivity and reliability of their systems. When intelligent sensing elements are applied to modern building engineering, attention should be paid to prohibiting the influence on the building shape, and at the same time, the compatibility of the building structure should be ensured to continuously improve its anti-interference ability [4].
4.2 Intelligent Control Integrated Development
If the building is compared to the human body, the intelligent control system is the nerve center system of the human brain. As the core part, it not only controls the motor system program and sensory system, but also directly affects the coordination function and operation function of the whole nerve. When the intelligent integrated system is installed in the intelligent civil structure of the building, it can greatly improve the external resistance of the building, such as storm and rain, so that it can respond at the first time, avoid casualties to the maximum extent and reduce economic losses. Based on the above situation, the relevant technical departments in China should focus on the research and development of intelligent control system, and increase the promotion and application. On this basis, the optimal control of the whole building environment will be realized, which will provide a strong guarantee for the stability and safety of the building structure.
4.3 Vigorously develop new energy-saving technologies
With the continuous growth of social economy, the shortage of ecological energy and the deterioration of environmental pollution are becoming more and more serious, threatening people's survival and development environment. In recent years, people pay more and more attention to the concept of energy conservation and environmental protection. In this context, green buildings came into being. However, in China's current modern building structure, new energy-saving technologies have not been popularized, the application rate needs to be improved, and the problem of energy waste is still widespread. Therefore, we should strengthen the development and innovation of energy-saving technologies, enhance the innovative consciousness of technicians, adapt new energy-saving technologies to modern intelligent civil structures, and provide convenient conditions for the development of green buildings. The specific analysis is as follows: First, when applying energy-saving technology to modern building structures, we should ensure the normal operation of building structures, ensure the accuracy of their positioning, minimize waste and reduce energy consumption. Secondly, combined with the actual situation and specific requirements of building structure, new energy-saving technologies and new ideas are introduced in a targeted manner to enhance the effectiveness and adaptability of technologies.
Finally, in the specific application process, we should also fully consider the changes of the external environment of the building, update and adjust the energy-saving technology in time according to its specific conditions, maximize its energy-saving and environmental protection performance, and provide a strong guarantee for the development of green buildings [5]. Intelligent civil structure is a new type of structure. Although its practical application in modern building structures has achieved good results, on the whole, because the application of this structure is still in the primary development stage, there are still many defects and problems in some fields, such as low application technology level and improper structure selection, which restrict and affect the full play of the application advantages and values of intelligent civil structures. In order to avoid the above problems, technicians should intensify their research on the structure, comprehensively analyze its applicable conditions, types and structural connotations, and select a reasonable civil structure in combination with the different scales, properties and functions of the building, so as to improve the application effect.
In addition, the application of intelligent civil structure can also provide energy-saving technology, realize the environmental protection and ecological functions of buildings, and greatly reduce energy consumption. In the process of energy-saving technology research, the application efficiency of wind energy, geothermal energy and solar energy can be improved, the application rate of fossil fuels can be minimized, and environmental pollution problems can be avoided, thus making contributions to improving the urban environment.
5 conclusion
With the development of science and technology and the popularization of intelligent technology, great changes have been brought to people's daily life and production. Intelligent civil structure integrates all kinds of advanced technologies and materials, which can greatly improve the safety and health detection ability of buildings and meet people's diversified needs for buildings when applied to modern building structures. This paper mainly analyzes the intelligent civil structure and its classification, expounds its application status in modern building structure, and finally puts forward effective measures to improve the application effect, with a view to providing support and guarantee for the development of green buildings and the construction of an environment-friendly society.
For more information about project/service/procurement bidding, and to improve the winning rate, please click on the bottom of official website Customer Service for free consultation:/#/? source=bdzd