Mounting mold for precast beam wedge block and embedding bolts and construction method of mounting mold
A technology of pre-embedded bolts and prefabricated beams, applied in molds, manufacturing tools, ceramic molding machines, etc., can solve the problems of poor appearance of the beam bottom, unfavorable support installation, low precision, etc., to save construction time and simplify the overall structure of the mold , the effect of improving the quality
Pending Publication Date: 2019-01-04
CHINA CONSTR FIRST GRP THE SECOND CONSTR
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Problems solved by technology
The conventional method is to reserve holes for wedge-shaped blocks on the prefabricated pedestal, fill the reserved holes with medium-coarse sand, control the elevation and slope of the wedge-shaped blocks according to the filling amount of medium-coarse sand, and fix the pre-embedded support bolts on the steel skeleton. This method is more accurate. Low, the appearance of the bottom of the beam is poor and it is not conducive to the installation on the subsequent support
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[0028] This embodiment is described by taking the wedge block and embedded bolt of the prefabricated box girder as an example, as figure 1 and figure 2 As shown, the rectangular frame 1 in the auxiliary mold is made of 20# channel steel closed and welded, the length is not less than 13000mm, the width is not small, the bottom width of the prefabricated beam is not small, and the composite plate 2 on the top surface of the rectangular frame 1 port is 5+1 composite steel plate , fixed by welding, in which the composite steel plate is reserved for the pre-embedded hole for installing the main mold; the inclined plate 3 is chamfered with a 50×50mm plate, and the support rod 7 welded with the channel steel is ø12 steel bar.
[0029] Such as image 3 and Figure 4 As shown, in this embodiment, the lower formwork 4 adopts a 2cm steel formwork with a size of 700 × 600mm, and an operation hole 13 with a diameter of 300mm is opened at the center of the 2cm steel formwork, and at the ...
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Abstract
The invention provides a mounting mold for a precast beam wedge block and embedding bolts and a construction method of the mounting mold. The mounting mold comprises a main mold body and an auxiliarymold body, wherein the auxiliary mold body comprises a rectangular frame and a composite plate which is completely spread and provided with embedding holes; the main mold body comprises an upper formwork and a lower formwork which are both arranged in the embedding holes of the rectangular frame; the upper formwork and the lower formwork are rectangular plates; adjusting holes allowing embedding bolts to penetrate through are formed in the position, corresponding to the embedding bolts, of the plate surface of the lower mold body, and an operation hole is formed in the center position of the plate surface of the lower mold body; adjusting sleeves are correspondingly arranged at four corners of the bottom plate of the lower mold body; and the upper formwork is correspondingly provided withpositioning holes for the embedding bolts. During construction operation, the main mold body and the auxiliary mold body are both arranged on a precast beam bottom seat, the height of the main mold body can be changed through rising and falling of adjusting bolts connected with the adjusting sleeves so as to adapt to the thickness of the wedge block, and the embedding bolts are positioned throughthe adjusting holes. The work time is effectively shortened as the auxiliary mold body is integrally precast, and the main mold body is adjustable and easy and convenient to operate, and high practicability is achieved.
Description
technical field [0001] The invention relates to the field of civil construction, in particular to a prefabricated beam wedge and pre-embedded bolt installation mold and a construction method thereof. Background technique [0002] With the development of bridge engineering, its application in railways, highways and urban roads is increasing, and in the implementation of bridge engineering, standard section prefabrication methods are often used, and prefabricated box girders, T girders and hollow slab girders have appeared. In the structural form, the beam bottom of these prefabricated beams is generally provided with wedge-shaped blocks and fixing bolts for the support. The conventional method is to reserve holes for wedge-shaped blocks on the prefabricated pedestal, fill the reserved holes with medium-coarse sand, control the elevation and slope of the wedge-shaped blocks according to the filling amount of medium-coarse sand, and fix the pre-embedded support bolts on the ste...
Claims
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Login to view more IPC IPC(8): B28B7/22B28B23/00
CPCB28B7/22B28B23/0056
Inventor 潘伟于德强李金元郑平张波肖源
Owner CHINA CONSTR FIRST GRP THE SECOND CONSTR
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