Construction method of steel-concrete composite beam bridge deck slab
A construction method and panel technology, applied in bridges, bridge parts, bridge construction, etc., can solve problems that affect the service life of steel-concrete composite beams, time-consuming and labor-intensive, hidden dangers of steel-concrete composite beam bridge deck stress, etc.
Inactive Publication Date: 2020-07-07
CHINA 22MCC GROUP CORP
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Problems solved by technology
This construction method is time-consuming and labor-intensive, and it is easy to form a common construction joint at the position of the wet joint, which is likely to bring certain hidden dangers to the stress of the steel-concrete composite beam bridge deck, thereby affecting the service life of the steel-concrete composite beam
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[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings and examples.
[0020] see figure 1 , the present invention is a construction method of a steel-concrete composite girder deck, which is carried out as follows:
[0021] A. Lifting and welding the sections of the first steel box girder 1 and the second steel box girder 2 to form;
[0022] B. A connecting beam 4 is installed between the first steel box girder 1 and the flange 3 inside the second steel box girder 2
[0023] (1) Process connection holes with a diameter of 22 mm on the flange 3 inside the first steel box girder 1 and the second steel box girder 2 respectively. The center of the connection hole is 15 cm away from the inner edge of the flange 3 . Center distance is 60 cm apart;
[0024] (2) Make the connecting beam 4, the connecting beam 4 is composed of the first channel steel 4-1, the second channel steel 4-2 and the connecting plate 4-3, the fir...
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The invention relates to a bridge, in particular to a construction method of a steel-concrete composite beam bridge deck slab. The method comprises the following steps that: A, all sections of the steel box girder are hoisted, welded and formed; B, a connecting beam is installed between the wing plates on the inner side of the steel box girder; C, square timbers and scaffold tubes are laid on theconnecting beams, and formworks are erected according to the shape of the bridge deck slab; D, bridge deck slab reinforcing steel bars are bound on the erected formwork; E, after the steel bars are bound, bridge deck concrete pouring is conducted, the bridge deck is covered with a film after concrete pouring, and watering maintenance is conducted; and F, after the bridge deck concrete reaches thestrength, the connecting beams and the formworks are detached. According to the method, the construction procedure is shortened, the working intensity of constructors is reduced, the construction period is shortened, the engineering cost is saved, meanwhile, full-section construction joints of the bridge deck slab can be avoided, the construction quality of the bridge deck slab is guaranteed, andgood economic benefits and social benefits are achieved.
Description
technical field [0001] The invention relates to a bridge, in particular to a construction method for a steel-concrete composite girder deck. Background technique [0002] The steel-concrete combined small box girder structure bridge has the characteristics of a large amount of steel reinforcement and a long time for concrete pouring. In the past construction, the bridge deck was often divided into several small concrete unit slabs, and then according to the pre-divided The prefabricated unit plate size is prefabricated, and finally the prefabricated unit plate is hoisted and spliced to the top surface of the steel box girder, and finally the wet joints of the bridge deck are poured to connect the entire bridge deck into a whole. This construction method is time-consuming and labor-intensive, and it is easy to form a common construction joint at the position of the wet joint, which is likely to bring certain hidden dangers to the stress of the steel-concrete composite beam ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): E01D21/00E01D19/12E01D2/04
CPCE01D2/04E01D19/125E01D21/00
Inventor 宋有宏张志勃陈克斌
Owner CHINA 22MCC GROUP CORP