High Performance Modular Expansion Joint To Nigeria - China

I

Q: Please describe the types of the type steel expansion joint?

A: Type steel expansion joint can be divided into the following types according to the performance and installation methods:

GQF-C type, GQF-Z type, GQF-L type, GQF-F type.

In these types, GQF-MZL type steel expansion joint device is made of hot-rolled overall forming profiled bar design of bridge expansion joint device.

The GQF-C type, GQF-Z type, GQF-L type, GQF-F type steel expansion joint apply to the bridge joint which expansion volume is less than 80mm.

GQF-MZL type steel expansion device is the type steel expansion joint which is made of edge beam, beam, beam and linkage mechanism.

It's suitable the medium and large span bridge which its expansion volume is between 80mm with 1200mm.

II

Q: What's the main function of the type steel expansion joint? How to realize the function?

A:

The function of the type steel expansion joint is to to prevent the housing cracks due to climate change.

To realize this function, a gap is reserved at certain distance along the length of the building.

The building from the roof, walls, floors and other floors above all the components are disconnected.

Because the foundation of the building is affected by the temperature change in the ground, it is not necessary to disconnect.

Expansion joint width is generally 2 cm to 3 cm, and there are thermal insulation materials in joint.

The distance between the two expansion joints is clearly defined in the specification of the building structure.

III

Q: What are the structural requirements of type steel expansion joint?

A:

1 - In the two directions of being parallel and being perpendicular to the axis of the bridge are free to flex.

2 - Firm and reliable.

3 - There is smooth and there has no sudden jump or noise when the vehicle is passing by.

4 - Waterproof and prevent infiltration of debris blocking.

5 - It's simple and convenient to Installation, inspection, maintenance and removal of dirt.

IV

Q: What are the matters should be attention to about the type steel expansion joint?

A: The following matters should be attention to:

1 - If the position of the embedded steel bars on the beam plate is incorrect or there is no pre embedded reinforcement, you need to use the reinforced fill bar.

2 - Clean and link the anchor after cutting.

3 - The welding seam of reinforcing steel should be enough and the welding should be firm.

4 - The surface elevation of concrete should be correct .

5 - If you want the effective telescopic performance, you should ensure the anchor should be firm.

6 - The curing time of concrete should be enough.

Don't open the traffic because of the lack of maintenance time.


V

Q: What are the Construction procedures of the type steel expansion joint?

A:

1 - Dig slot and clean slot.

2 - Punch Positioning hole.

3 - Lay anti crack reinforcement net.

4 - Water bottom.

5 - Install steel plate.

6 - Water concrete on both sides of the transition section.

7 - Maintenance and maintenance.


VI

Q: What matters should to do before the installation of type steel expansion joint?

A: The preparation work before installation of expansion joints must be adequate.

Before installing the expansion joint:

1 - Construction of the staff must be familiar with the drawings of the bridge and the installation of operating procedures of highway bridge expansion joints.

Check the smoothness, the straight and the gap between the joints of the expansion joints.

2 - Check mechanical equipment and Small equipment are complete or not.

Especially to guarantee quality of construction vehicle passing the bridge must be strengthened and abundant, to ensure the smooth progress of the construction.

3 - The materials of canvas, plastic sheeting, tape to prevent the pollution of the road should be prepared adequate.

4 - Plastic film maintenance, straw mats and water transport tools should be prepared adequate.


Contact information

Sales Manager: Miss.

lurywen

Company: Hengshui Jianfeng Engineering Rubber Co., LTD.D.

Company Contact:

• Posted By: Hengshui Jianfeng Engineering Rubber Co.,LTD

• Phone: 86-13323183257

• Address: Renmin road No.1657, Hengshui , Hebei , China

• Email:

• Business Description: Hengshui Jianfeng Engineering Rubber Co., LTD., a manufacturing company built
  
  in the year 1999, Located in the North of China, which is a professional manufacturer of water stop, waterproof materials and China association of rubber products waterproofing material association member units as well.
  
  Its annual production capacity is about 10000 tons.
  
  The company's operating philosophy is " Work once, Trust all lives ", relying on excellent technology, high quality products and excellent service to get the user's consistent high praise.
  
  Products are mainly used in water conservancy, electric power, environmental protection, ore smelting, machinery, municipal, transportation, airports, ports, stadiums, gardening and irrigation infrastructure industry.
  
  .
  
  in order to ensure product quality, not only has advanced testing equipment, and has passed ISO9001 international quality management system certification.
  
  The company established a perfect quality guarantee system, to ensure the engineering quality.
  
  We can also meet different standrad.