# Construction and Application of Safety Management Scenarios at Construction Sites
## 3 Results
### Basic Overview of the Production Base Project
(3) Comprehensive analysis of wind and climate conditions on construction sites  
Based on data analysis of the maximum indoor and outdoor temperatures, wind speed, wind direction, and other natural conditions, safety management scenarios for the production base project have been constructed using the climatic data parameters displayed in Table 2 to simulate the wind environment. The subsequent chapters incorporate spatial and temporal scenarios of the construction site and values derived from the data in Table 2. No further repetition of this data will occur. (4) Analysis of natural conditions during the foundation and basement construction phases  
By modelling the wind conditions present onsite during the construction of the foundation and basement phases, a 1.5 m air flow map was generated for the construction site (Figure 6). As Supporting Service Building Nos. 1 and 2 and Plant No. 3 have not yet reached the positive and negative 0 interface during the foundation and basement construction stages, only Plant Nos. 4 and 5 are affected by the XY direction wind field at 1.5 m from the construction site. During spring, the construction site experiences a prevailing southeast wind. As the wind advances, it encounters an obstruction to the east of Plant No. 5, causing the airflow to be redirected and create a phenomenon known as bypass in which part of the airflow passes through the middle of Plant Nos. 4 and 5 and both sides of the road, while the rest rises and forms a northeasterly wind towards the southwest. In the springtime on the construction site, the simulation scenario indicates the highest average wind speed. Supporting Services Building No. 1 experiences this situation, along with Plant No. 3, which are in the area of the highest wind speed, exceeding 4 m/s. Supporting Services Building No. 2 is situated in the second-highest wind speed area, although not as high as the aforementioned locations. The height of the second building is  
Figure 5: Wind Frequency Chart for the Four Seasons: (**a**) Spring (**b**) Summer (**c**) Autumn (**d**) Winter. approximately 0 with reduced wind speeds in the wind shadow area north of Plant Nos. 4 and 5 due to the influence of the northeast-southeast wind direction convergence. 2.3 Analysis of Artificial Conditions for the Construction of Scenarios in the Foundation and Basement Construction Phases of the Production Base Project  
(1) Analysis of mechanical arrangements during the foundation and basement construction phases  
Tower cranes are frequently utilized at the construction site of the production base project. Five tower cranes were arranged on the site, situated to the north of Building No. 1, between the main building and the podium of Building No. 2, east of Plant No. 5, and to the north of Plant No. 3. The boom length of Tower Crane No. 1 was 50 m, and that of Tower Crane No. 2 was 65 m. Tower Crane Nos. 3, 4, and 5 each had a 70 m boom length (Table 3). In the process of tower crane operation, for each tower crane, in any position within the swinging range of its big arm is dangerous. If the tower crane operator incorrectly directs the crane, the suspended goods may fall and injure the personnel. If the arm lifting height is not suitable, the arm may collide with the building. If the crane is not operated properly, the big arm could drop the goods, which is a serious situation that could even cause the tower crane to topple over. Therefore, with the tower crane base as the center of the circle and the tower crane arm length as the radius, the first level of the buffer zone is established; then, a secondary buffer zone was created with the intersection area of the five tower crane booms. Mobile truck cranes were employed to assist with the lifting operation at the production base construction site, where the tower crane's jib did not cover the necessary area. The Plant No. 4 is a steel structure, while the floor slabs of Plant Nos. 3 and 5 are made of steel trusses. The steel structure project uses the prefabricated component splicing technique.