The correct use and maintenance of steel ropes in construction are directly related to construction safety and efficiency. The following is a specific operation guide, combined with its structural characteristics and construction scenario requirements, covering four aspects: usage standards, daily maintenance, troubleshooting, and storage management:

1、 Usage guidelines: Ensure safety and efficiency

1. Load and parameter matching

Clearly define the rated load: Before use, check the breaking force of the clamping steel rope (usually indicated on the product label) to ensure that the actual load does not exceed 80% of its rated load (leaving sufficient safety redundancy). For example, for a steel wire rope with a breaking force of 50kN, the lifting weight of a single rope should be controlled within 4 tons.

Avoid overloading and impact loads: It is strictly prohibited to suddenly brake or pull, to prevent the instantaneous impact force from exceeding the limit of the rope (the impact load may cause the actual force to reach 2-3 times the static load), especially when lifting heavy objects such as concrete components and steel, which need to be lifted slowly.

2. Installation and operation points

Check the appearance and connection:

Before installation, check if the outer fibers are damaged and if the steel wire is exposed. If local wear exceeds one-third of the fiber thickness or if the steel wire is corroded, it should be stopped immediately;

When connecting, priority should be given to using specialized rope clamps, shackles, or pulleys to avoid direct knotting (knotting may cause local stress concentration and reduce load-bearing capacity).

Avoid sharp angle friction and compression:

Rubber, canvas, and other protective materials should be added to the contact area between the rope and metal components to prevent sharp angles from cutting the outer fibers;

Ensure that the diameter of the pulley is not less than 15 times the diameter of the rope when passing through it (small diameter pulleys can exacerbate internal wire bending fatigue).

3. Special scenario operations

High altitude operation safety rope:

When used as a safety belt suspension rope, it should be paired with a buffer to avoid excessive impact force during a fall;

Regularly check the wear of the connection between the rope body and the safety hook (it is recommended to visually inspect before each operation).

Damp/Corrosive Environment:

Avoid prolonged immersion in water or contact with concrete slurry or chemical solvents; If accidentally touched, rinse with clean water and air dry in a timely manner.

2、 Daily maintenance: Extend service life

1. Cleaning and Inspection

Regular cleaning:

Use a soft bristled brush every week to remove dust, mud, and other debris from the surface of the rope to prevent particulate pollutants from embedding into the fiber gaps and exacerbating wear;

Oil stains can be wiped with neutral detergents (such as dishwashing detergent), and strong acid or alkali solvents are prohibited (which may corrode fiber or steel wire coatings).

Deep inspection cycle:

Daily visual inspection: focus on checking whether the outer fibers are broken, fuzzy, or discolored (such as yellowing of nylon fibers, which may indicate aging), and whether the steel wire ends are loose;

Monthly comprehensive inspection: Use a vernier caliper to measure the diameter of the rope. If the diameter decreases by more than 10% due to wear and tear, it needs to be downgraded or scrapped;

Annual professional inspection: Use non-destructive testing equipment (such as steel wire rope detector) to check the corrosion and breakage of internal steel wires, especially for frequently used lifting ropes.

2. Lubrication and rust prevention

Internal steel wire maintenance:

Spray steel wire rope specific anti rust lubricant (such as graphite grease) inside the rope body every 3 months, penetrating through the fiber gaps to the surface of the steel wire to prevent rusting;

During operation, the rope can be rotated in sections to ensure even distribution of lubricant.

Outer fiber maintenance:

Avoid direct sunlight that can cause fiber aging (UV rays can make materials such as polyester and nylon brittle), and use sunscreen cloth to cover idle ropes when working outdoors.