The requirements of reinforced concrete construction was issued by the State to the contractor a strict compliance. The combination of concrete and steel offers many advantages for reinforced concrete. Steel and concrete coefficient of thermal expansion close to the same, thus avoiding the influence of environmental temperature. Concrete cover in reinforced outside and protect from erosion of the environment, positioning concrete and steel to prevent breakage. Concrete tensile and bending properties less, when reinforced this drawback will be overcome by material tensile steel is quite good. Therefore, concrete is widely used in construction today. The combination of reinforced concrete and steel structures created as the bearing structure of the building. And to ensure optimum performance of reinforced concrete in construction work in residential building, in addition to compliance with the regulations on standards, technical construction of concrete, Consultant Joint Stock Company CMC Construction management (specializing in designing, constructing villas, hotels in Nha Trang , Khanh Hoa) please add the required aggregate for reinforced following:
General provisions on Steel:
– Reinforcement of the right type to meet Vietnam’s Construction Regulations.
– Steel buildings used to ensure strength, size design.
– If builders can change the design of reinforced compared with (group, number, diameter rebar) or structural changes need to be anchored to the inspection and approval of the design unit previous design. At the same time need to comply with the following provisions:
+ When changing the group, number of groups reinforced, reinforced other numbers, should be based on computational reinforced strength in writing and design of reinforced strength to be used in practice to change the sectional area appropriately reinforced.
+ Investor note to the contractor is not arbitrarily change types of steel, in case of need to change the types of steel required the consent of the unit design.
Reinforced construction work:
– Reinforced worked as designed, clean surface at the site, the reinforcement should be installed according to design. In the case of solder joints must ensure regulations should be irrigation and less water for fire prevention Coppha . Conducted by the Statistics Department of Statistics steel precast concrete.
– Steel worked to prevent rust, dirt and grease. Armatures cutting, bending according to design by hand. The weld connection , ensuring the technical requirements: ensure weld > = 10D, wiring > = 30d (d is the diameter of the steel), steel weld cleaning. The first wait -protected plastic bags. Before the transplant formwork force available in precast concrete Statistics.
– Installation of reinforced floors, walls of water tanks: fixed measures the distance between the layers of steel together like dog legs, Department of Statistics concrete, granite, … in which the dog leg iron machining D8 , D10 to Statistics steel cap floor, Department of Statistics marble concrete or steel used to Statistics under the floor).
– The links in each position steel bar intersecting conducted by force or soldering connection methods.
– Number of joints, tie or stick welding is not less than 50% of the points of intersection alternating order. At the intersection between the reinforcing steel, welded or tie carefully.
– Check the reinforcement at the location as stairs, additional offices, wall mirrors, linen bowl … see proper position and height not before the concrete pour.
CMC
