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Proper use of the bridge in the loadable range

  • Categories:Zhongrui News
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  • Time of issue:2019-05-28 13:48
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(Summary description)The bearing capacity of the bridge shall be verified in accordance with the load test. The load at the initial permanent deformation of the bridge shall be divided by the safety factor of 1.5 and shall not be less than the rated uniform load. All types of supports and hangers shall be able to withstand the corresponding specifications of the pallets and ladder frames, the rated uniform load of the number of layers and their own weight.

Proper use of the bridge in the loadable range

(Summary description)The bearing capacity of the bridge shall be verified in accordance with the load test. The load at the initial permanent deformation of the bridge shall be divided by the safety factor of 1.5 and shall not be less than the rated uniform load.

All types of supports and hangers shall be able to withstand the corresponding specifications of the pallets and ladder frames, the rated uniform load of the number of layers and their own weight.

  • Categories:Zhongrui News
  • Author:
  • Origin:
  • Time of issue:2019-05-28 13:48
  • Views:
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The bearing capacity of the bridge shall be verified in accordance with the load test. The load at the initial permanent deformation of the bridge shall be divided by the safety factor of 1.5 and shall not be less than the rated uniform load.
 
All types of supports and hangers shall be able to withstand the corresponding specifications of the pallets and ladder frames, the rated uniform load of the number of layers and their own weight.
 
The force attachments such as the connecting plate and the connecting bolt should be compatible with the strength of the body structure such as the tray, the ladder frame and the support arm.
 
The manufacturer shall give the relationship curves or data sheets for the different spans of the various types of pallets and cable-conductor ladders and the uniform load allowed.
 
The relative deflection of pallets and ladder frames when subjected to the rated uniform load shall not exceed 1/200.
 
The ratio of the maximum deflection value of the weight of the hanger rail or the side wall of the bracket to the rated load of the pallet and the ladder shall not exceed 1/100.
 
The manufacturer shall give the deflection values ​​of the pallets and ladder frames of various types and specifications in different loads and branches and hanger spans.
 
When the pallets and ladders need to withstand short-term additional concentrated loads, they shall comply with the provisions of the second paragraph.
 
The technical quality of hot-dip galvanizing and anti-corrosion treatment of cable-conductor bridges is the most important and should meet the requirements of the table.
 
For other galvanized nickel-intermediate gold, high passivation and other anti-corrosion treatment of the bridge, it should be tested and verified according to the regulations, and should have clear technical quality indicators and testing methods.

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