What Are The Key Safety Points for On-site Operation of Water Bags for Weight Testing?

1. Pre-test inspection:

• Check the water bags for cuts, pinholes, and weld cracks;

• Inspect the lifting points, slings, and shackles for flaws;

• Clean sharp edges and corners to prevent puncturing the water bags.

2. Slow, staged water filling, never fill completely at once:

• Load in stages, monitoring structural deformation, abnormal noises, davit brakes, and wire rope elongation in real time;

• Stop immediately if any abnormality occurs, drain and depressurize, do not continue pressurizing.

3. Control environmental conditions:

• Do not conduct suspension tests in strong winds (>6) or high waves, as water swaying will generate additional impact loads;

• In low-temperature environments, prevent freezing and expansion that could damage the water bags; add compliant antifreeze if necessary.

4. Uniform load:

• Fill multiple bags evenly with water to avoid uneven loading;

• Place the water bags evenly inside the davit to simulate the actual distribution of personnel; do not pile them on one side.

5. Work Isolation and Emergency Response Plan

• Set up a warning zone below the test area, prohibiting personnel from standing there;

• Prepare drainage plans and emergency venting valves, and develop an emergency response procedure for water bag rupture.