Structural design knowledge: what are the advantages of concrete-filled steel tube column shear wall structure?

- Feb 11, 2019-

What are the advantages of concrete-filled steel tube column shear wall structure?


(1) the shear wall of concrete-filled steel tubular columns has good compressive and shear properties.


(2) with excellent seismic performance and good ductility, it is possible to control the length-fineness ratio without limiting the axial compression ratio of steel tubes when it is applied to the shear wall of concrete-filled steel tubular columns in high-rise buildings.The hysteresis curve between horizontal force P and displacement can be full under cyclic load of compression, bending and shear of concrete-filled steel tubular shear wall, indicating that its energy absorption capacity is very good, with good seismic performance.


(3) it can give full play to the bearing capacity of high strength concrete and prevent its brittle failure.


(4) using ordinary steel plate material, the thickness is generally not more than 40mm, 50mm at most, easy to draw materials, easy to manufacture and installation.


(5) concrete-filled steel tube column shear wall is easy to construct, which creates conditions for rapid construction.


(6) good fire resistance, compared with reinforced concrete shear wall structure, can generally save 2/3 fire coatings, thus reducing the project cost.The fire resistance of concrete filled steel tubular column shear wall is better than that of reinforced concrete shear wall.This is because the steel pipe contains a lot of concrete, which can absorb a lot of heat.The thermal conductivity of concrete is low but the specific heat is high, so when a fire occurs, the temperature distribution in the section of shear wall is not uniform, the more to the center, the more the temperature lags, so the bearing capacity of shear wall decreases slowly, increasing the fire resistance time of shear wall, which is good for the safety of the structure.


(7) concrete-filled steel tube has better economic benefits than steel and reinforced concrete.Compared with the steel column, it can save 50% of the steel, reduce the cost about 45% : compared with the reinforced concrete, it can save about 70% of the concrete, reduce the dead weight 70%, save the template 100%, and the amount of steel used is equal or slightly more.


Cangzhou Steel Pipe Group (CSPG) Co., Ltd

Cangzhou Steel Pipe Group (CSPG) Co., Ltd. is a large-sized, key metallurgic enterprise of Hebei Province in North China, whose history dates back to 1994. CSPG currently em/paces six member companies with products varying from SSAW, LSAW, ERW, seamless steel pipes to 3PE pipes, galvanized pipes, casing pipes, etc. A Joint-stock corporation, CSPG occupies an area of 600,000 square meters with a total asset of $530 million.



Specialized in the production of straight welded pipe spiral pipe galvanized pipe 3PE/3PP/FBE/TPEP internal and external epoxy powder internal and external epoxy resin cement mortar two cloth three oil buried pipeline IPN8710 non-toxic drinking water internal and external plastic coated lining plastic and other anti-corrosion pipe fittings for oil and gas pipeline water conservancy projects



Executive standard :DIN30670 DIN30678 CSA Z245 AFNOR nf49-710/711 NACE rp0394/0490 AWWAC 210/C213GB/T9711 API 5L ISO 3183Material: Q235B/Q355BGR A GR B x42-x80 l245-l555

 

Business scope: 21.3mm-3620mmLSAW submerged arc welded pipe 325-2020mmERW straight welded pipe 6mm-711mmSMLS seamless tube 10-1120mmSSAW spiral steel tube 219-3620mmDemand for quality suppliers and partners

 


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