Plastic Bearing Capacity Of Steel Bridge Support Members

Safety protection is done on both sides of the bridge head, and reflective signs at night are pasted on both sides of the bridge head to ensure the strict implementation of load limit and speed limit and the safety of the bridge body. The middle of the steel sheet pile is combined with I-section steel to improve the bending stiffness of the steel sheet pile. The bolt of the connecting rod is also reinforced with a long airbag shock absorber rod. The tighter the connecting rod bolt is, the better. The unearthed ramp is close to the bottom of the pit with conventional road, and the upper part near the top of the pit with steel bridge.

The structure with pumping columns should appropriately increase the horizontal support of similar floors and roofs, and set up vertical support between adjacent columns. The support bar between columns shall be made of whole material, and the length specification of the material may be made of strong splicing such as butt weld, and the connection between the support bar and the member shall not be less than the plastic bearing capacity of the support bar. The support structure of the steel platform should meet the requirements and be solid and reliable under the premise of meeting these conditions, so as to play a good supporting role.

Steel platform in the process of construction requires a certain support of steel structure to be stable and firm, the support structure of steel platform should meet the requirements, the column support should be arranged in the column with large load, and in the same column through the upper and lower, not through, should be staggered after the continuous arrangement, and should be appropriately increased similar floor, roof horizontal support. The horizontal seismic action undertaken can be transmitted to the foundation.

The steel used in the overall process is less, the oriented parts can be reassembled and recycled, and the steel bridge can be used when digging deeper soil. Compared with the conventional concrete trestle bridge, the steel bridge has a short service period and more cycles, and the project cost is greatly reduced. When it has a certain depth, the construction method of steel bridge should be used, and the conventional unearthed road should be used in the rest stages, and the service cycle of steel members is short.