High pier moving formwork supporting device and method
A technology for moving formwork and supporting devices, which is applied in the erection/assembly of bridges, bridges, buildings, etc., which can solve the problems of few support points, difficult installation of support structures, difficulty in dispersing stress concentration, etc., so that it is not easy to deform or break, and avoid deformation Or fracture, the effect of uniform stress distribution
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Embodiment 1
[0033] The high pier mobile formwork support device provided by the present invention includes a base 4, a main leg arranged on the base 4 and a support seat arranged at one end of the main leg, and an auxiliary leg arranged on the main leg. One end of the outrigger is flexibly connected with the main outrigger, and a swivel seat is arranged on the other end of the auxiliary outrigger. The device adds auxiliary legs to the main legs, and uses the auxiliary legs to increase the stress point according to the change of the force point, so that the stress distribution is uniform, and the deformation and fracture of the formwork caused by stress concentration are avoided.
[0034] see figure 1 , figure 2 as well as image 3 , in this embodiment, the main legs include the first main leg 1, the second main leg 2 and the third main leg 3; one end of the first main leg 1, one end of the second main leg 2 and the third main leg One end of the supporting leg 3 is flexibly connected t...
Embodiment 2
[0039] The supporting method of the high pier mobile formwork supporting device provided by the present invention comprises the following steps:
[0040] 1) After the mobile formwork is lowered, the base is placed in a suitable position, and the support seat on the main leg is in contact with the deformation point at the bottom of the formwork and fixed to support the formwork;
[0041] The specific operation is that, according to the shape of the protective plates on both sides of the template, the corresponding first support seat 11, second support seat 21 and second support seat 11 on the first main leg 1, the second main leg 2 and the third main The three support seats 31 are in contact with the corresponding stress deformation points on the bottom of the formwork and are fixed by thread or welding, and a certain support structure is formed between the first main leg 1, the second main leg 2 and the third main leg 3, It can play a good role in supporting the stress of the ...
Embodiment 3
[0047] The supporting device of the present invention and its use will be described based on its application in specific construction.
[0048] The main bridge of a highway bridge is a cable-stayed bridge with a main span of 820m. Transition piers are set between the Nan’an Beach Bridge and the cable-stayed bridge. Transition piers are set between the Nan’an Beach Bridge and the continuous girder bridge across the South Embankment. The Nan’an Beach Bridge has a 50m continuous box girder In the bridge section, every five spans of the box girders are connected, with a total length of 750m, which is constructed with mobile formwork.
[0049] The mobile formwork system is mainly composed of main beams, nose bridges, corbels, push flat cars, beams, and outer formwork. The total length of this set of mobile formwork is 168m. The front and rear nose bridges are box-shaped truss structures. During the process, the entire formwork is supported and the load it bears is transferred to t...
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