Zhangjiajie observation point protection box supplier

Zhangjiajie observation point protection box supplier  

The settlement observation points shall be set firmly and properly protected to prevent them from being damaged during construction. Settlement observation points shall be generally set at the following locations: 1. Four corners, large corners, 1015m along the outer wall or every 23 column bases of the building; 2. Both sides of the junction of high and low rise buildings, new and old buildings, vertical and horizontal walls, etc; 3. Both sides of building cracks and settlement joints, places with great difference in foundation burial depth, places where artificial foundation and natural foundation are adjacent, boundaries between different structures, and boundaries between filling and excavation; 4. Set points on each or part of the column base of the frame structure building or along the vertical and horizontal axes; 5. Four corners and middle position of raft foundation, box foundation bottom plate or structural part close to the foundation; 6. For buildings with a width greater than or equal to 15m or less and complicated geology and land area, set interior wall points in the middle of the load-bearing interior partition wall, and set ground points in the center and around the interior ground; 7. Nearby stacked heavy objects, vibrating foundation, heavy equipment and power equipment foundation, etc. Last year, affected by the slowdown in macroeconomic growth, overcapacity in the steel industry, serious imbalance between supply and demand and other factors, steel prices fell, and the industry's deficit continued to expand; The selling price of steel is seriously linked to the cost, the cost advantage of self owned mines is gradually lost, the transportation and logistics costs are high, and the exchange loss caused by devaluation. A variety of factors have combined to significantly reduce the operating efficiency. According to the Iron and Steel Industry Association, the economic benefits of the iron and steel industry fell sharply last year. The total profits of domestic large and medium-sized steel enterprises were 64.534 billion yuan, compared with 22.589 billion yuan last year; In addition, at present, China's crude steel production capacity is about 1.2 billion tons, and the capacity utilization rate is less than 67% according to the 2015 output.