Double truss bridge construction beam launcher equipment

Double truss bridge construction beam launcher equipment is used in the erection of precast beam bridges for span by span method of construction for precast beam girders like T beam, U beam, etc. This self-beam launcher is suitable for bridge construction over river, valley or highway and so on.

Double truss bridge construction beam launcher equipment is suitable for the construction of bridge for roads, railways and other bridge erection construction site. Its main function is to lift the prefabricated beams, then transported onto the prefabricated pier. It has big difference from the general cranes. It requests high security.

Our Company
Henan Shenghua Heavy Crane Group is a big enterprise specialized in researching, developing, producing and exporting.

It mainly produces Double truss bridge construction beam launcher equipment, overhead crane and gantry crane, beam launcher, movable scaffolding system crane, form traveller, straddle carrier, tyre transporter, beam trolley, portal crane and electric winch, electric hoist and all kinds of accessories, which widely cover machinery, metallurgy, electric power, railway, water conservancy, ports, terminals and other industries.

Shenghua Heavy Crane Group have more than 600 staff, and covers 200,000 square meters.

Our advantages:
A. More than 50 R&D personnel with advanced Science and technology.
B. More than 400 sets advanced Production processing equipment and inspection equipment.
C. Independent intellectual property rights to develop energy saving bridge cranes, gantry cranes, and electric hoist
D. Obtain ISO 9001 certificate and more than 10 series of patent certificates.
E. Efficient service and competitive products.
F. Export more than 100 countries.


FAQ
1. What’s the information should I provide when inquiry about the Double truss bridge construction beam launcher equipment?
1.1 We need the Bridge Drawing, the Maximum longitudinal slope and the Maximum Transverse slope.
1.2 The Girder/beam drawing.

2. What are inspection standard for load test of Double truss bridge construction beam launcher equipment?
2.1 Dynamic load test
1.1 times rated load, main girder does not down deflection, all mechanisms work well, performance parameters meet the design demand, all limit switches and safety protection interlock devices are reliable, all spare parts does not have cracking and flexible connection, all motors and contactors are not overheat.

2.2 Static load test
1.25 times rated load, all mechanisms work well, the crane stops 20-30 min as trial load is lifted 10 cm high, then measure main girder down deflection(theodolite, ruler). Put down trial load to measure main girder upper camber, repeat 3 times, steel structure does not have permanent deformation;

3. How to make highway bridge concrete girders?
a. Full span prefabrication.
b. Segment girder prefabrication.
c. Full span cast-in-place girder.
d. Segment cast-in-situ.

4. How about maintenance of Double truss bridge construction beam launcher equipment?
4.1 Lubricating: Working performance and service life of all mechanisms of crane depend on lubricating to a big extent.
4.2 Steel wire rope: Fracture of wire has to be specially noticed. A new steel wire rope has to be changed immediately with the condition of broken wire, broken strands and wear loss to scrapping standard.
4.3 Spreader: The spreader has to be checked regularly.
4.4 Pulley block: Mainly check rope race wearing condition, check whether wheel flange is cracked and whether pulley could get stuck in the axle or not.
4.5 Wheels: Regularly check wheel flange and tread, a new wheel has to be immediately replaced as crack part or wearing in wheel flange reaches 10% of wheel thickness; Re-polishing has to be done as diameters between two driving wheels on tread differs more than D/600, or there are severe scar on the tread.
4.6 Brake: Check one time per shift; The brake should be in accurate movement, and pins do not allow to be stuck. Brake shoes shall fit brake wheels correctly; the brake shoes interval shall be equal to open them.

5. How many Personnel and equipment to assemble Double truss bridge construction beam launcher equipment in the worksite we need?
Personnel: 8 to 10 workers equipment
Truck crane > 50 t : 2 sets
Φ19.5 steel wire rope 8 m: 4 ropes
Sleepers: several
Electric welding machine: 1 set
Oxygen, acetylene: 1 set
Hammer(12 pound and 8 pound): 1 set for each
Wrench and pincher: several
Gradienter: 1 set