With the increasing global demand for renewable energy, photovoltaic systems have been widely used in various buildings as an efficient and environmentally friendly way of energy utilization. However, the installation of photovoltaic systems on the roof of buildings will undoubtedly put forward new requirements for the bearing capacity of the original roof. Failure to accurately assess the load-bearing capacity of the roof can lead to structural instability and even safety incidents. Therefore, the detection and identification of the bearing capacity of rooftop photovoltaics can ensure the overall stability of the building structure after the installation of the photovoltaic system and avoid potential safety risks.
The long-term stable operation of a photovoltaic system depends on the load-bearing capacity of the roof. If the load-bearing capacity of the roof is insufficient, the PV system may be damaged, leading to a decrease in power generation efficiency and even a safety incident. Through the detection and identification of the bearing capacity of rooftop photovoltaics, potential problems can be found in time and corresponding reinforcement measures can be taken to ensure the long-term stable operation of the photovoltaic system.
Guangdong Fang 10When testing and identifying the bearing capacity of rooftop photovoltaics, a testing institution with the following conditions and qualifications should be selected:
1. Professionalism and authority: The testing institution should focus on the field of building structure safety appraisal and photovoltaic system testing, and have corresponding professional qualifications and certifications. For example, you can look for a testing institution with nationally recognized laboratory qualifications and building structure testing qualifications.
2. Rich experience: The testing institution should have many years of experience in testing and identification, and be familiar with the structural characteristics of various types of buildings and the installation requirements of photovoltaic systems. This ensures that potential safety hazards are accurately identified during the inspection process and reliable identification results are provided.
3. Advanced testing equipment and means: The testing institution should have advanced testing equipment and means, such as non-destructive testing equipment, stress testing equipment, vibration analysis instruments, etc. These devices can help inspectors accurately obtain structural data and improve the accuracy and reliability of inspection results.
4. Professional testing team: The testing institution should have a professional testing team, including structural engineers, construction experts, material scientists, etc. These professionals should have a wealth of professional knowledge and practical experience, be able to independently complete the testing and identification work, and provide professional advice and solutions.
5. High-quality service and service: Testing institutions should provide high-quality service and reasonable service. When choosing a testing agency, you can compare the charging standards and service quality of different institutions, and choose a cost-effective institution for cooperation.
The process of rooftop PV inspection generally includes the following steps:
On-site investigation of the type of house structure, number of floors, address of the house, age of construction, orientation of the house, general situation of house decoration and use of the house.
According to the drawings provided by the entrusting party, review the layout of the steel structure, the size of the components, and the height of the floor; If the design drawings cannot be provided, the layout of the existing superstructure, the size of the components, the height of the floors, etc., will be measured on the spot and the structural drawings will be drawn.
Inspect and identify the cracks, damages, coating peeling, steel corrosion, node damage, welding appearance defects, connection fastening conditions and other appearance damage of the steel components of the house.
Based on the data collected in the field, modeling software is used for modeling, calculation and analysis.
Based on the on-site inspection situation and data analysis results, the safety and reliability of the inspected building structure are evaluated, the detection conclusions are drawn, and relevant suggestions are put forward.