Curvature radius adjustable prefabricated box-beam mold and construction method thereof
A construction method and a technology for adjusting the curvature, which are applied in the field of adjustable curvature radius molds to achieve the effects of smooth and beautiful surface, lower production costs, and higher production efficiency.
Active Publication Date: 2010-09-15
SHANGHAI CONSTR BUILDING MATERIALS TECH GRP CO LTD
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Problems solved by technology
[0007] The technical problem to be solved by the present invention is to provide a prefabricated box girder mold with low production cost, high production efficiency and good appearance quality of prefabricated products and its construction method, so as to solve various large curvature (small radius), variable (radius) curvature concrete prefabricated beams and slabs in the production process of cost, schedule, quality and production efficiency, etc., to overcome the above-mentioned defects existing in the prior art
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[0033] The specific implementation manner of the present invention will be further described below in conjunction with the accompanying drawings.
[0034] Such as figure 1 , figure 2 As shown, the adjustable radius of curvature prefabricated box girder mold of the present invention includes a bottom mold 1, a side mold and an end mold. side; the end mold includes a front mold 3 and a rear mold 3', which are respectively fixedly arranged at the front and rear ends of the bottom mold 1; Cavity 4;
[0035] The molds 2 and 2' on the left and right sides are fixedly connected to the floor 7 through the diagonal tie rods 6 respectively, and the molds on the left and right sides 2 and 2' are connected through the upper tie rod 8 connected to the upper part of the beam body and the lower part connected to the lower part of the bottom mold of the beam body. The pull rods 9 are fixedly connected to each other;
[0036] Such as image 3 , Figure 4 As shown, the bottom form 1 is s...
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The invention discloses a precast box girder mould with adjustable curvature radius and an installation method of the mould. Through adopting the conception of replacing the curve with a fold line with fixed length, the accurate lofting of the bottom mould, designing the side mould consisting of a plurality of fixed sections with a fixed length, providing elasticity changing sections and regulating and connecting bars between the fixed sections with a fixed length, the capacity of adjustable curvature radius of the fold line with a fixed length is realized. Meanwhile, through embedding regulating blocks on the side mould to realize the regulating of the length of an inner arc and an outer arc, the needs of fixed cross section and the prefabricated construction components with variable camber are met, and the manufacturing and constructing need of the continuous changing section faces and the prefabricated construction components are met. Adopting the prefabricated box girder mould with adjustable curvature radius of the invention, the general needs and accurate requirements of the designing curvature change is met, and the surface of the mould is smooth and beautiful with as less trace of a die plate joint as possible or no trace of the die plate joint.
Description
technical field [0001] The invention relates to the field of concrete prefabricated building component products in municipal construction. Specifically, it relates to an adjustable radius of curvature mold for prefabricated concrete building components, especially prefabricated box girders, which is suitable for box girders whose main surfaces on both sides are vertical straight lines and whose section conditions are continuously changing or fixed. ; The present invention also relates to a construction method for box girder prefabrication using the mold. Background technique [0002] With the needs of modern municipal construction, in construction projects such as elevated road box girders, bridge deck girders, and track girders (rail transit), various types of large curvature (small radius) and variable (radius) curvature curved beams, plates, etc. , will be widely used in various municipal construction projects. In particular, the curved beam with variable (radius) curva...
Claims
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IPC IPC(8): B28B7/22B28B7/02B28B7/26
Inventor 张耀生杨德建单晨晓张士晓周国河王君健
Owner SHANGHAI CONSTR BUILDING MATERIALS TECH GRP CO LTD