Ribbed Reinforcing Deformed Steel Bar-BS4449:1997

Ribbed Reinforcing Deformed Steel Bar-BS4449:1997 System 1

Ribbed Reinforcing Deformed Steel Bar-BS4449:1997

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 28 m.t.

Supply Capability:: 30000 m.t./month

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Specifications

Ribbed Reinforcing Deformed Steel Bar-BS4449:1997
Size: from 8 to 32mm
Grade: HRB400, BIS460B, ASTMGR60,BS4449

Ribbed Reinforcing Deformed Steel Bar-BS4449:1997

Grade: HRB335 HRB400 HRB500 HPB235 ASTM A615 Gr.40 Gr.60 Gr.75 BS449B 460B 500B

SD345 SD390 SD490 SD235 SD295

Standard: ASTM JIS GB DIN

Diameter: 8mm-32mm

Length: 6m 9m 12m

Application: construction material, building material

Port of Loading: Tianjin

Delivery Time: 25 days after confirmng your order

Packing: in bundles

Ribbed Reinforcing Deformed Steel Bar-BS4449:1997

D	THEORETICAL WEIGHT	D	THEORETICAL WEIGHT	D	THEORETICAL WEIGHT
/mm	(kg/m)	/mm	(kg/m)	/mm	(kg/m)
8	0.395	18	2	32	6.31
10	0.617	20	2.47	36	7.99
12	0.888	22	2.98	40	9.87
14	1.21	25	3.85	50	15.42
16	1.58	28	4.83

Ribbed Reinforcing Deformed Steel Bar-BS4449:1997

Grade	Technical data of the original chemical composition(%)
	C	Mn	Si	S	P	B
HRB335	≤0.25	≤1.60	≤0.80	≤0.045	≤0.045	>0.00008
	Physics capability
	Yield Strength(N/cm2)		Tensile Strength(N/cm2)		Elongation (%)
	≥335		≥490		≥16

Ribbed Reinforcing Deformed Steel Bar-BS4449:1997

Grade	Technical data of the original chemical composition(%)
	C	Mn	Si	S	P	V
HRB400	≤0.25	≤1.60	≤0.80	≤0.045	≤0.045	>0.00008
	Physics capability
	Yield Strength(N/cm2)		Tensile Strength(N/cm2)		Elongation (%)
	≥400		≥570		≥14

Ribbed Reinforcing Deformed Steel Bar-BS4449:1997

Grade: HRB335 HRB400 HRB500 HPB235 ASTM A615 Gr.40 Gr.60 Gr.75 BS449B 460B 500B

SD345 SD390 SD490 SD235 SD295

Standard: ASTM JIS GB DIN

Diameter: 8mm-32mm

Length: 6m 9m 12m

Application: construction material, building material

Port of Loading: Tianjin

Delivery Time: 25 days after confirmng your order

Packing: in bundles

Ribbed Reinforcing Deformed Steel Bar-BS4449:1997

Ribbed Reinforcing Deformed Steel Bar-BS4449:1997

Q: Are there any limitations on the maximum number of steel rebars that can be used in a concrete element?: Yes, there are limitations on the maximum number of steel rebars that can be used in a concrete element. These limitations are usually specified by building codes, structural design standards, and engineering principles. The maximum number of rebars is determined by factors such as the size and dimensions of the concrete element, the load it needs to support, and the required spacing and arrangement of rebars to ensure proper reinforcement and structural integrity.

Q: Can steel rebars be used in the construction of road bridges or flyovers?: Steel rebars are indeed applicable in the construction of road bridges or flyovers. Owing to their remarkable strength and durability, they are widely utilized as reinforcement in concrete structures such as bridges and flyovers. By fortifying the concrete, these rebars amplify its structural integrity and load-bearing capacity, making it capable of withstanding heavy traffic loads and enduring the forces encountered by road bridges and flyovers. Furthermore, steel rebars furnish heightened resistance to corrosion, a vital attribute in bridge construction where exposure to environmental factors is prominent. In summary, the utilization of steel rebars guarantees the structural stability, longevity, and safety of road bridges and flyovers.

Q: What is the difference between steel rebars and FRP rebars?: Steel rebars are traditional reinforcement bars made of steel, while FRP rebars are reinforced polymer bars. The main difference lies in their composition and properties. Steel rebars are strong and durable, but they are prone to corrosion, requiring regular maintenance. On the other hand, FRP rebars are corrosion-resistant, lightweight, and possess high tensile strength. They also offer better thermal and electrical insulation. However, FRP rebars are relatively new in the construction industry and may be more expensive compared to steel rebars.

Q: Are steel bars used more in high-rise buildings or steel?: Look at the architectural design requirements and seismic grade, light steel reinforcement is mainly stirrups, columns, beams, shear walls generally use thread steel, plate bars and distribution bars are generally cold and twisted steel bars

Q: Are steel rebars suitable for use in structures with aggressive soil conditions?: Structures facing aggressive soil conditions should generally consider the suitability of steel rebars. The specific characteristics of the soil and its potential impact on the rebars must be taken into account. Aggressive soil conditions often involve excessive moisture, acidity, or corrosive substances, which can lead to corrosion and compromise the structural integrity of the construction. To prevent corrosion, several measures can be employed. One effective approach is the use of corrosion-resistant steel rebars, including stainless steel or epoxy-coated rebars. These materials offer an additional layer of protection against aggressive soil conditions. In addition, proper design and construction techniques can help minimize the adverse effects of aggressive soil conditions on the rebars. Implementing adequate drainage systems, waterproofing measures, and protective coatings can prevent direct contact between the soil and the rebars. It is crucial to seek advice from structural engineers and soil science experts when assessing the suitability of steel rebars in structures facing aggressive soil conditions. Their expertise and recommendations are invaluable for ensuring the longevity and safety of the structure.

Q: What are the different methods of reinforcing concrete with steel rebars?: There are several methods for reinforcing concrete with steel rebars. The most common method is to place the rebars in a grid pattern throughout the concrete structure. This can be done by tying the rebars together with wire or using rebar chairs to hold them in place. Another method is to use precast concrete elements with embedded rebars that are then connected together. Additionally, steel mesh or fiber reinforcement can be used to reinforce the concrete. These methods all help to improve the strength and durability of the concrete structure.

Q: Can steel rebars be used in nuclear power plants?: Yes, steel rebars can be used in nuclear power plants. Steel rebars are commonly used in construction projects, including nuclear power plants, to reinforce concrete structures. These rebars provide added strength and stability to the concrete, enhancing its ability to withstand various loads and forces. However, it is important to note that the use of steel rebars in nuclear power plants must comply with specific regulations and standards to ensure the safety and integrity of the plant. These regulations may include requirements for the type of steel used, its composition, and mechanical properties. Additionally, the rebars must undergo rigorous quality control measures to ensure they meet the required standards and are free from any defects that could compromise the structural integrity of the plant. Overall, steel rebars can be safely used in nuclear power plants as long as they meet the necessary regulatory requirements and quality control measures.

Q: What is the process of calculating the required quantity of steel rebars for a project?: The process of calculating the required quantity of steel rebars for a project involves several key steps. Firstly, you need to determine the design requirements and specifications of the project. This includes understanding the structural drawings, plans, and any relevant building codes or regulations. Next, you need to identify the specific areas where steel rebars will be used. This can include foundations, columns, beams, slabs, and any other structural elements that require reinforcement. Once the areas are identified, you need to calculate the total length of rebars required for each element. This is done by measuring the dimensions of the elements and determining the required spacing and overlap of the rebars. After obtaining the lengths, you need to consider the bar diameter and spacing requirements, as specified in the design. This will help you calculate the number of rebars needed for each element. In addition to the length and number of rebars, you also need to consider wastage and additional reinforcement requirements. It is common practice to add a percentage of wastage (usually around 2-5%) to account for cutting and bending of the rebars. You may also need to add extra bars for special conditions or to meet the design requirements. Finally, you should create a detailed bar bending schedule (BBS) that includes all the necessary information such as bar sizes, lengths, shapes, and placement details. This schedule acts as a guide for the construction team during the installation process. It is important to note that the process of calculating the required quantity of steel rebars may vary depending on the complexity and size of the project. It is recommended to consult with a structural engineer or a professional rebar detailer to ensure accurate calculations and adherence to the project's specifications.

Q: How do steel rebars contribute to the strength of concrete?: The strength of concrete is enhanced in various ways by steel rebars. Firstly, they increase the tensile strength of concrete, which is otherwise relatively low. Although concrete is excellent at withstanding compression, it is weak when it comes to resisting tension. This is where steel rebars come into play. By embedding them within the concrete, they provide extra strength and help prevent cracks from forming and spreading. Secondly, the bond between concrete and the reinforcement material is improved by steel rebars. The ribbed surface of the rebars creates a better grip with the concrete, ensuring a stronger bond. This bond is crucial as it allows the concrete and steel to work together, distributing the loads and minimizing the risk of structural failure. Furthermore, the overall durability and longevity of concrete structures are increased by steel rebars. They are resistant to corrosion, which is a major concern in coastal or high humidity areas. The corrosion resistance of rebars ensures that the concrete remains structurally sound for a longer period, reducing maintenance costs and extending the lifespan of the structure. In addition to their strength-enhancing abilities, steel rebars also contribute to the structural stability of concrete elements. They help reinforce critical areas such as beams, columns, and foundations, where high loads and forces are present. By providing additional support and reinforcement, steel rebars help prevent excessive deflection, bending, or failure of these elements under heavy loads. To summarize, steel rebars are crucial in enhancing the strength of concrete structures by improving tensile strength, bond strength, durability, and overall structural stability. Incorporating them into concrete elements is essential to ensure the longevity and safety of various construction projects.

Q: Can steel rebars be used in structures with high humidity levels?: Yes, steel rebars can be used in structures with high humidity levels. However, it is important to ensure proper corrosion protection measures are in place to prevent rusting and deterioration of the rebars over time. This can include using corrosion-resistant coatings or stainless steel rebars, as well as proper concrete cover to create a barrier between the rebar and the surrounding environment. Regular maintenance and inspections are also necessary to monitor and address any signs of corrosion.

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