GALVANIZED STEEL WIRE ROPE
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- Q: What is the difference between cable stayed bridge and suspension bridge?
- Finally, the gravity of the main beam becomes the two vertical force of the tower, so that the force passes to the pier under the tower.There are more cables, and the same reason. There are a lot of bars, that's to distract the main girder from the cables.As a kind of cable of cable-stayed bridge, more than beam bridge spanning capacity is the main bridge of long span bridges. The cable stayed bridge is composed of many cables which are directly connected to the tower. The cable-stayed bridge is composed of pylon, main beam and stay cable. The types of pylon are A, inverted Y, H and single column. The materials are steel and concrete. There are single cable plane, parallel double cable plane and inclined cable plane in the stay cable. The first modern cable-stayed bridge was built in Sweden in 1955 and has a span of 182 meters. At present, the largest span cable-stayed bridge built in the world is the Normandy bridge in France, with a main span of 856 meters. The Shanghai Yangpu bridge, built in 1993, is the largest cable-stayed bridge in China, with a main span of 602 meters
- Q: How much is the crane arm of the tower from the residential building recently?
- (1) hook safety device: a sling that prevents the hook from slipping and is automatically slipped from the hook. A spring is arranged at the opening of the hook head to seal the opening; the spring sheet can only be pressed downwards and can not be turned upwards after being put into the sling to prevent the sling from falling off automatically.(2): reel insurance device is effective measure to prevent accidents caused by improper wire rope winding drum out outside. There are different ways to do this. The main reason is that a steel bar is welded outside the drum to restrict the wire rope to move within the reel range.(3) fixed foundation: the depth of digging pit is 600mm, the concrete is poured on the lime soil, the surface is smooth, and the waterproof and earthing protection measures are adopted.
- Q: They are used for slings, ropes, chains, suspenders, hand hoists, right?
- A variety of commonly used wire rope phosphating coating steel wire rope, galvanized steel wire, stainless steel wire rope or coated steel wire rope.
- Q: What torture refers to the lever and the sling
- The sling hanging and torture half pig "(only one side of the body hanging victims), pawn (tied hanging arm and feet) and so on, all belong to the suspension of torture throughout human skin nerve endings, the feeling is very sensitive, in the daily life of people on the outside of the pain, is the nerve end suspension shoot at work. Some nerve endings, such as fingers, toes, sexual organs, etc., are more acute and abnormal. The distribution of the human nerve network also forms many subcutaneous sensitive areas, such as the two sides of the spine, the armpit, the medial thigh, the two rib, and so on. Therefore, the users of torture also torture people according to these physiological characteristics of the human body, and bring great suffering to the sufferers with more labor-saving means. The vast majority of the torture we know fall into this category, and the torture against women is basically the same.
- Q: What are the precautions for rigging in hoisting works?
- 1. develop good hoisting habits and plan how to hang, lift and unload before lifting.2. prepare: determine the weight of the hanging object and its center of gravity, read the attached document carefully, mark the lifting point and weight data. Only when the center of gravity has been determined can the hook be hung at the right place!3. the crane operator shall be informed of the weight of the suspended object.4. the crane hook shall be hung vertically above the center of gravity of the suspended object.5. lifting heavy pieces, both to avoid damage to lifting objects, but also to prevent damage to the rigging itself. The following conditions shall be observed in order to avoid rotation or fall:(a) single leg rigging, the lifting point shall be perpendicular to the center of gravity of the lifting object.(b) if it is a two leg rigging, the suspension point shall be on either side of the lifting object, with the lifting point above the center of gravity.(c) if it is a three leg and four leg rigging, the suspension point shall be evenly located at the center of gravity of the lifting object, and above the center of gravity of the suspended object.Attention must be paid to the lifting angle, between the vertical and the leg): the greater the lifting angle, the smaller the lifting capacity. Lifting angles of more than 60 degrees are absolutely not allowed!
- Q: Is the sling the same thing as the rigging?
- I say you should be able to understand the sling, lifting heavy rigid fetching device operation means, that is to say can directly take hanging items, mainly include: grab, clamp, suction and special sling and rigging, etc.; refers to the lifting items, tie hook combination device with flexible. In the article, usually made from high strength flexible parts (steel wire rope, lifting chain, artificial fiber tape) with end ring, hook, shackle assembly.
- Q: Why are the suspension bridges a main cable, even a n multi sling, not a bridge directly from the tower?
- The main weight of a bridge is not the car or train on it, but the road itself, that is, the road we see. Now let's analyze this:We analyze it with a pylon. The two sides of the pylon are symmetrical stay cables which connect the main beam of the pylon through the stay cables. Now suppose that only two towers on both sides of the cable, symmetrical each one of the two cables subjected to beam gravity, two symmetrical of the cable along the direction of the force, according to the stress analysis, the stress can be decomposed into a horizontal and vertical force to a downward force a vertical force; and the same on the right side of the force can be decomposed into the right level of a downward force; the two force is symmetrical, so the two level of the left and right horizontal force cancel each other out,
- Q: What are the specifications for the rigging?
- Crane users need high quality steel wire rope, it should be long life and high quality stable and reliable wire rope. Fretting fatigue is the main cause of wire rope failure in atmospheric environment
- Q: Notice of tower crane?
- After the tower crane is installed, the whole machine should be inspected and adjusted, and shall be ready for delivery after passing the inspection in stages and through the whole machine. In the case of no load, the deviation of the verticality between the tower and the ground shall not exceed 4/1000.. The motor and hydraulic unit of the tower crane shall be carried out in accordance with the relevant provisions concerning the motor and hydraulic device.
- Q: Types of slings for slings
- Slings are mainly made of metal slings and synthetic fiber slings in two main categories.
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GALVANIZED STEEL WIRE ROPE
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
OKorder Financial Service
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