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Common sense of steel bar joint construction in construction engineering

Common sense of steel bar joint construction in construction engineering 1. Joint use regulations (1) For steel bars with a diameter greater than 12mm, Hufeng Machinery should preferably use welded joints or mechanically connected joints. (2) When the diameter of the tension steel bar is greater than 28mm and the diameter of the compression steel bar is greater than 32mm, it is not suitable to use lap joints. (3) Lap joints shall not be used for longitudinally stressed steel bars of axial tension and small eccentric tension members (such as trusses and arch tension rods). (4) Among the structural members directly bearing dynamic loads, the longitudinal tensile reinforcement shall not be bound with lap joints. 2. The joint area allows the percentage of the same connection section

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The company's first half year summary commendation meeting

The company's first half year summary commendation meeting

Award speech: This is an excellent team, a united and upward group; they know how to cherish and are good at grasping, as long as it is beneficial to the development of the company, they will never look back; every Thursday at noon, they use the rest time to clean the staff accommodation aisle and clean the second floor Garbage, etc.; in the high temperature days this year, I sent cold mung bean soup to the front-line employees almost every day, and also sent care for the employees; they had no rhetoric, no great achievements, and some were just dedication. They are: The Executive Building Team

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Several benefits of using straight thread sleeves in the construction industry

Now steel connection is becoming more and more common, basically occupying the entire market, and welding is ruthlessly replaced or eliminated. Sleeve connection is mainly superior to welding mainly in: 1. The use of steel bar connecting sleeves in the construction industry can greatly reduce the use of materials, and it is easy to operate and is not limited by the type of steel bar composition. It can be prefabricated in advance, does not occupy the construction period, and has high processing efficiency. the 2. The straight thread sleeve has the advantages of convenient, fast and simple connection, no electricity is required for construction, and it can be constructed in all weathers regardless of the weather. the 3. It can connect horizontal, vertical and oblique HRB335, HRB400 steel bars of the same diameter or different diameters. the Our company (Hufeng Machinery) can produce the following specifications and models of straight screw rebar connecting sleeves: φ16-φ40 common rebar connecting sleeves, adjustable rebar connecting sleeves, different diameter rebar connecting sleeves, and special rebar connecting sleeves. And provide thread rolling machine products with the specifications of steel bar straight thread processing equipment. And responsible for construction site technical training and equipment maintenance services.

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Features and functions of steel bar connection sleeve

The steel connection sleeve produced by our company Shanghai Hufeng Machinery Co., Ltd. has the advantages of high joint strength, fast connection speed, strong applicability, high construction efficiency, material saving, energy saving, and economy. The steel bar connection sleeve is suitable for various steel bar connection projects. The steel connection sleeves we produce have passed the inspection of the National Construction Engineering Quality Supervision and Inspection Center, and all items meet the standards. It is made of carbon structural steel with performance not lower than 45. Its mechanical properties and chemical composition meet the GB699 standard. The standard values of bearing capacity and tensile bearing capacity are 1.10 times greater than the corresponding bearing capacity standards of steel bars. The tensile strength of the joint made of the steel bar connecting sleeve is greater than the tensile strength of the steel bar base material, and greater than 0.9 times the measured value of the tensile strength of the steel bar base material. the The thread matching accuracy is in accordance with GB197, the internal thread of the steel sleeve is 6H, the thread head thread is 7g, the surface roughness of the tooth profile is in accordance with the provisions of GB/T1031, the Ra value is 6.3um, and the Ra value of the rest of the processed parts is 12.5um . The surface has been treated with anti-embroidery, no rust, oil stains, cracks, black skin and other defects. Plastic protection plugs are added to the screw holes at both ends. the The function of the steel bar connection sleeve: Rib stripping and rolling straight thread connection of steel bar is to peel off a part of the longitudinal rib and transverse rib at the end of the steel bar to be connected by cutting, and then directly roll into ordinary straight thread, and connect it with a special straight thread sleeve to form Rebar connection. The rib stripping and rolling straight thread connection technology of steel bar is the first technological invention at home and abroad, reaching the international advanced level; the stripping rib rolling straight thread connection technology is efficient, convenient and fast construction method and energy saving and consumption reduction, improving efficiency, stable and reliable connection quality, etc. The advantages have been favored by the majority of construction units and owners. It is a new product of straight thread connection technology. the Features of steel bar connection sleeve: 1. The use of our steel bar connection sleeve can greatly reduce the use of materials, and the operation is simple and not limited by the type of steel bar composition. the 2. The steel connection sleeve can be prefabricated in advance, which does not occupy the construction period and has high processing efficiency. the 3. The connection is convenient, fast and simple, no electricity is needed for construction, and it can be constructed all-weather regardless of the weather. the 4. It can connect horizontal, vertical and oblique HRB335, HRB400 steel bars of the same diameter or different diameters.

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Rolled Straight Thread Connecting Socket Technology Rolled Straight Thread Connecting Socket Technology

Normative Standards Cited "JGJ-107-96 General Technical Regulations for Mechanical Connection of Steel Bars"; "Q/BSJJ06-2000 Technical Regulations for Steel Bar Rolling Straight Thread Joints".

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On-site safety management regulations for stripping ribs and rolling straight threads of steel bars

On-site Safety Management Regulations for Rib Stripping and Rolling Straight Thread 1) Operators should strictly abide by all safety management regulations on the construction site; 2) Operators must undergo technical training, receive safety education, and work with certificates after passing the assessment; 3) When the maintenance personnel are repairing the equipment, no one else is allowed to touch the power switch; 4) Operators should always check whether the machine head screws are loose, and tighten them in time if they are loose; 5) Do not hammer any part of the thread rolling machine; 6) Operators are strictly prohibited from wearing gloves to operate; 7) The electrical appliance/power supply of the equipment should be operated and maintained by an electrician. Non-electricians are not allowed to touch electrical appliances at will, and are not allowed to open the distribution box of the thread rolling machine privately to prevent electric shocks; 8) During the rolling operation, the steel bar must be clamped. If the steel bar is found to be loose and rotated during the rolling process, it is not allowed to touch the steel bar with your hands. 9) Comply with the on-site fire safety regulations, and smoking is not allowed on site. 10) Do not work outdoors in rainy days to prevent electrical leakage. Shanghai Hufeng Machinery Co., Ltd. is mainly engaged in construction machinery, building materials, construction engineering, and welding construction engineering. It is a construction unit with Shanghai's first-level professional qualification. The rib stripping and rolling straight thread connection technology of steel bars is a new technology for steel bar connection that is promoted by the Ministry of Construction. It has the characteristics of high joint strength, simple and convenient operation, safety and environmental protection. The quality of the steel bar rib stripping and rolling straight thread machine and sleeves produced by the company has reached the domestic leading level, and is widely loved and respected by customers. The company has a professional steel bar connection technician with superb technology and high efficiency, which has been unanimously recognized by everyone

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