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.
FAQ
1. What is 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.
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