Manufacturing Mold and Construction Method for Installing a Sump Well Inside a Prefabricated Box Girder

Abstract

A manufacturing mold and construction method for setting a catch basin inside a precast box girder. The manufacturing mold includes: an inner mold of the precast box girder, an outer mold of the precast box girder, a steel bar structure of the precast box girder, and a catch basin mold; the catch basin mold includes: a top mold of the catch basin, a bottom mold of the catch basin, two end molds of the catch basin, and a neck mold of the catch basin. The top mold of the catch basin is detachably connected to the bottom mold of the catch basin. The two end molds of the catch basin are respectively arranged at both ends of the top mold of the catch basin and the bottom mold of the catch basin. A catch basin opening is formed on the top mold of the catch basin. The neck mold of the catch basin is arranged at the catch basin opening and extends outward from the catch basin opening. The catch basin mold forms a mold for the main structure of the catch basin. The detachable connection method between the top mold of the catch basin and the bottom mold of the catch basin is conducive to the assembly and disassembly of this mold, improves the turnover rate of this mold, and further improves the construction efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of sump molds, and particularly to a manufacturing mold and a construction method for setting a sump in a precast box girder. Background Art

[0002] During the main construction process of precast box girders, there are two construction methods. One is the on-site casting method, which is a traditional construction method with disadvantages such as large land area, high resource waste rate, great influence by environmental factors, high cost, and high operation difficulty. The other is the precast and assembled structure construction, where all components are produced in a factory, not affected by environmental factors, with high efficiency, high precision, and a significant reduction in labor dependence. The components of the main structure are prefabricated in a factory. Under the existing case background, the sumps in the main structure are all constructed by on-site casting, and there is no construction method of setting the sump in the precast component for prefabrication.

[0003] Meanwhile, most of the construction technologies for sumps exist in on-site cast-in-place operations, and the templates for sumps are all installed and fixed on the construction site, resulting in high labor consumption, long time consumption, low material turnover utilization rate, and difficult control of construction quality. Summary of the Invention

[0004] The main technical problem to be solved by the present invention is to provide a manufacturing mold and a construction method for setting a sump in a precast box girder, so as to improve the turnover utilization rate of the sump template, reduce the labor intensity, improve the construction efficiency, and improve the construction quality.

[0005] According to the first aspect of the present application, the present application provides a manufacturing mold for setting a sump in a precast box girder, including:

[0006] The inner mold of the precast box girder includes: an inner top mold, an inner bottom mold, two inner end molds, and an inner well neck mold. The inner top mold is detachably connected to the inner bottom mold. The two inner end molds are respectively arranged at both ends of the inner top mold and the inner bottom mold. An inner opening is provided on the inner top mold, and the inner well neck mold is arranged at the inner opening;

[0007] The outer mold of the precast box girder surrounds the outside of the inner mold of the precast box girder, and a precast box girder cavity for forming the precast box girder is enclosed between the outer mold of the precast box girder and the inside of the precast box girder. The outer mold of the precast box girder includes: an outer top mold, an outer bottom mold, two outer end molds, and an outer well neck mold. The outer top mold is detachably connected to the outer bottom mold. The two outer end molds are respectively arranged at both ends of the outer top mold and the outer bottom mold. An outer opening is provided on the outer top mold, the outer opening is directly opposite to the inner opening, and the outer well neck mold is arranged at the outer opening;

[0008] Precast box girder steel structure, and the precast box girder steel structure is arranged in the cavity of the precast box girder;

[0009] Sump mold, the sump mold is arranged inside the inner mold of the precast box girder, and a cavity for forming the well wall of the sump is formed between the sump mold and the inner mold of the precast box girder; the sump mold includes: a sump top mold, a sump bottom mold, two sump end molds and a sump neck mold, the sump top mold is detachably connected to the sump bottom mold, the two sump end molds are respectively arranged at both ends of the sump top mold and the sump bottom mold, a sump opening is formed on the sump top mold, and the sump neck mold is arranged at the sump opening and extends outwards from the sump opening.

[0010] In one embodiment, the sump mold further includes: a plurality of support structures, the plurality of support structures are sequentially arranged at intervals along the length direction of the sump top mold and the sump bottom mold inside the sump top mold and the sump bottom mold, and the support structures are used to connect the sump top mold and the sump bottom mold.

[0011] In one embodiment, the sump top mold includes: a plurality of sump top formworks, and the plurality of sump top formworks are detachably connected in series.

[0012] In one embodiment, the sump top formwork includes: a top fixed formwork and two top side movable formworks, the two top side movable formworks are respectively rotatably installed on both sides of the top fixed formwork, and in adjacent two sump top formworks, one end of one top fixed formwork is detachably connected to the other end of the other top fixed formwork; among the plurality of sump top formworks, the top fixed formwork at the head end and the other ends of the two top side movable formworks at the head end are detachably connected to one sump end mold, and the top fixed formwork at the tail end and the one ends of the two top side movable formworks at the tail end are detachably connected to the other sump end mold.

[0013] In one embodiment, the sump bottom mold includes: a plurality of sump bottom formworks, and the plurality of sump bottom formworks are detachably connected in series.

[0014] In one embodiment, the bottom formwork of the sump includes: a bottom fixed top formwork and two bottom side movable formworks. The two bottom side movable formworks are respectively rotatably installed on both sides of the bottom fixed top formwork of the sump bottom formwork. In adjacent two sump bottom formworks, one end of one bottom fixed top formwork is detachably connected to the other end of the other bottom fixed top formwork; among the multiple sump bottom formworks, the bottom fixed top formwork at the head end and the other ends of the two bottom side movable formworks at the head end are detachably connected to one sump end formwork; the bottom fixed top formwork at the tail end and one ends of the two bottom side movable formworks at the tail end are detachably connected to the other sump end formwork.

[0015] In one embodiment, the sump neck formwork includes: four vertical sump neck formworks. The sump opening is a rectangular sump opening, and the four vertical sump neck formworks are respectively connected to the four sides of the rectangular sump opening.

[0016] In one embodiment, a sealing structure is provided between the sump top formwork and the sump bottom formwork, between the two sump end formworks and the sump top formwork and at both ends of the sump bottom formwork.

[0017] According to the second aspect of the present application, the present application provides a construction method for a manufacturing mold for arranging a sump in a precast box girder, including the following steps:

[0018] Install the inner bottom formwork;

[0019] Install the sump top formwork and the sump bottom formwork on the inner bottom formwork, install the two sump end formworks at both ends of the sump top formwork and the sump bottom formwork respectively, and install the sump neck formwork at the sump opening;

[0020] Assemble the precast box girder steel bar structure on the inner bottom formwork;

[0021] Connect the inner top formwork and the inner bottom formwork, install the two inner end formworks at both ends of the inner top formwork and the inner bottom formwork respectively, install the inner neck formwork at the inner opening, and connect the opening of the sump opening to the inner opening;

[0022] Connect the outer top formwork and the outer bottom formwork, install the two outer end formworks at both ends of the outer top formwork and the outer bottom formwork respectively, install the outer neck formwork at the outer opening, and make the outer opening face the inner opening;

[0023] Pour concrete into the cavity of the precast box girder.

[0024] According to the manufacturing mold and construction method for setting a sump well in a precast box girder provided by the above embodiments, the top mold of the sump well, the bottom mold of the sump well, and the two end molds of the sump well form the mold of the main structure of the sump well, and the well neck mold of the sump well forms the well neck mold of the sump well. A detachable connection method is adopted between the top mold and the bottom mold of the sump well, which is beneficial to the assembly and disassembly of this mold, improves the turnover rate of this mold, and further improves the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a perspective view of the manufacturing mold for setting a sump well in a precast box girder provided by this application;

[0026] Figure 2 is a perspective view of the sump well mold in the manufacturing mold for setting a sump well in a precast box girder provided by this application;

[0027] Figure 3 is a partial structural cross-section of the sump well mold in the manufacturing mold for setting a sump well in a precast box girder provided by this application Figure 1 ;

[0028] Figure 4 is a partial structural cross-section of the sump well mold in the manufacturing mold for setting a sump well in a precast box girder provided by this application Figure 2 ;

[0029] Figure 5 is a cross-sectional view of the sump well mold in the manufacturing mold for setting a sump well in a precast box girder provided by this application from a top view angle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings through specific embodiments. Similar elements in different embodiments are labeled with related similar element numbers. In the following embodiments, many detailed descriptions are provided to enable a better understanding of this application. However, those skilled in the art can easily recognize that some of these features can be omitted in different situations, or can be replaced by other elements, materials, or methods. In some cases, some operations related to this application are not shown or described in the specification to avoid overwhelming the core part of this application with excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0031] In addition, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can also be reordered or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and drawings are only for clearly describing a particular embodiment and do not mean that they are the necessary sequences, unless it is otherwise stated that a certain sequence must be followed.

[0032] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meaning. And as used in this application, "connection" and "coupling", unless otherwise specified, both include direct and indirect connection (coupling).

[0033] See Figures 1-3 As shown, the manufacturing mold for setting a sump well in a precast box girder provided in this embodiment includes: a precast box girder inner mold, a precast box girder outer mold 200, a precast box girder steel bar structure, and a sump well mold.

[0034] The precast box girder inner mold includes: an inner top mold, an inner bottom mold, two inner end molds, and an inner well neck mold. The inner top mold and the inner bottom mold are detachably connected. The two inner end molds are respectively arranged at both ends of the inner top mold and the inner bottom mold. An inner opening is formed on the inner top mold, and the inner well neck mold is arranged at the inner opening.

[0035] The precast box girder outer mold 200 surrounds the outside of the precast box girder inner mold. And a precast box girder cavity for forming the precast box girder is enclosed between the precast box girder outer mold 200 and the inside of the precast box girder. The precast box girder outer mold 200 includes: an outer top mold 201, an outer bottom mold 202, two outer end molds 203, and an outer well neck mold. The outer top mold 201 and the outer bottom mold 202 are detachably connected. The two outer end molds 203 are respectively arranged at both ends of the outer top mold 201 and the outer bottom mold 202. An outer opening 2011 is formed on the outer top mold 201, and the outer opening 2011 is directly opposite to the inner opening. The outer well neck mold is arranged at the outer opening.

[0036] The precast box girder steel bar structure is arranged in the precast box girder cavity.

[0037] The sump well mold is arranged inside the precast box girder inner mold. A well wall cavity for forming the well wall of the sump well is formed between the sump well mold and the precast box girder inner mold.

[0038] See Figure 2As shown in the figure, in the manufacturing mold for setting a catch basin in a precast box girder provided in this embodiment, the catch basin mold includes: a catch basin top mold 10, a catch basin bottom mold 20, two catch basin end molds 30, and a catch basin neck mold 40. The catch basin top mold 10 is detachably connected to the catch basin bottom mold 20. The two catch basin end molds 30 are respectively arranged at both ends of the catch basin top mold 10 and the catch basin bottom mold 20. The catch basin top mold 10, the catch basin bottom mold 20, and the two catch basin end molds 30 enclose a catch basin cavity 101 for forming a catch basin (as Figure 5 shown), as Figure 1 shown, the catch basin top mold 10 and the catch basin bottom mold 20 form the top surface, bottom surface, and side surface of this mold. The two catch basin end molds 30 are respectively located at both ends in the length direction of this mold. A catch basin opening 100 is formed on the catch basin top mold 10. The catch basin neck mold 40 is arranged at the catch basin opening 100 and extends outward from the catch basin opening 100.

[0039] In this embodiment, the direction in which the catch basin neck mold 40 extends outward is an external extension direction of this mold. The catch basin top mold 10, the catch basin bottom mold 20, and the two catch basin end molds 30 form a mold for the main structure of the catch basin. The catch basin neck mold 40 forms a catch basin neck mold of the catch basin. The detachable connection method between the catch basin top mold 10 and the catch basin bottom mold 20 is beneficial to the assembly and disassembly of this mold, improves the turnover rate of this mold, and further improves the construction efficiency.

[0040] In this embodiment, a sealing structure is provided between the catch basin top mold 10 and the catch basin bottom mold 20, and between the two catch basin end molds 30 and both ends of the catch basin top mold 10 and the catch basin bottom mold 20.

[0041] As Figure 3 and Figure 4 shown, in one embodiment, the manufacturing mold and construction method for setting a catch basin in a precast box girder provided in this application further include: a plurality of support structures 50. Each support structure 50 is sequentially arranged at intervals along the length direction of the catch basin top mold 10 and the catch basin bottom mold 20 inside the catch basin top mold 10 and the catch basin bottom mold 20. The support structure 50 is used to connect the catch basin top mold 10 and the catch basin bottom mold 20 to support the catch basin top mold 10 and the catch basin bottom mold 20, and improve the structural strength of this mold.

[0042] Continuing to refer to Figure 3 and Figure 4 shown, in this embodiment, the catch basin top mold 10 includes: a plurality of catch basin top templates 11. The catch basin top templates 11 are detachably connected in series. Four catch basin top templates 11 are shown in the figure. The catch basin top templates 11 are detachably connected to facilitate the disassembly, transportation, and improvement of the product turnover rate of the catch basin top mold 10.

[0043] Continue to refer to Figure 3 and Figure 4 As shown, in one embodiment, each top formwork 11 of the sump includes: a top fixed formwork 111 and two top side movable formworks 112. The two top side movable formworks 112 are respectively rotatably installed on both sides of the top fixed formwork 111 through rotating shafts. Among adjacent two top formworks 11 of the sump, one end of the top fixed formwork 111 in one top formwork 11 of the sump is detachably connected to the other end of the top fixed formwork 111 in another top formwork 11 of the sump; in each top formwork 11 of the sump, the other ends of the top fixed formwork 111 at the head end and the two top side movable formworks 112 at the head end are detachably connected to a sump end form 30, and one ends of the top fixed formwork 111 at the tail end and the two top side movable formworks 112 at the tail end are detachably connected to another sump end form 30.

[0044] Refer to Figure 2 As shown, in this embodiment, the bottom formwork 20 of the sump includes: a plurality of bottom formworks 21 of the sump. The bottom formworks 21 of the sump are detachably connected in series. Four bottom formworks 21 of the sump are also shown in the figure. The bottom formworks 21 of the sump are detachably connected to facilitate the disassembly and transportation of the bottom formwork 20 of the sump and improve the product turnover rate.

[0045] Continue to refer to Figure 3 and Figure 4 As shown, in this embodiment, the bottom formwork 21 of the sump includes: a bottom fixed formwork 211 and two bottom side movable formworks 212. The two bottom side movable formworks 212 are respectively rotatably installed on both sides of the bottom fixed formwork 211 of the sump. Among adjacent two bottom formworks 21 of the sump, one end of the bottom fixed formwork 211 in one bottom formwork 21 of the sump is detachably connected to the other end of the bottom fixed formwork 211 in another bottom formwork 21 of the sump; in each bottom formwork 21 of the sump, the other ends of the bottom fixed formwork 211 at the head end and the two bottom side movable formworks 212 at the head end are detachably connected to a sump end form 30; one ends of the bottom fixed formwork 211 at the tail end and the two bottom side movable formworks 212 at the tail end are detachably connected to another sump end form 30.

[0046] As Figure 2 and Figure 3 As shown, in this embodiment, the well neck formwork 40 of the sump includes: four vertical well neck formworks 41 of the sump. The sump opening 100 provided on the sump top form 10 is a rectangular sump opening, and the four vertical well neck formworks 41 are respectively connected to the four side edges of the rectangular sump opening.

[0047] This embodiment also provides a construction method for a manufacturing mold of a sump arranged in a precast box girder. The method comprises the following steps:

[0048] Install the inner bottom formwork.

[0049] Install the sump top formwork 10 and the sump bottom formwork 20 on the inner bottom formwork. Install two sump end formworks 30 at both ends of the sump top formwork 10 and the sump bottom formwork 20 respectively, and install the sump neck formwork 40 at the sump opening 100.

[0050] Assemble the precast box girder steel bar structure on the inner bottom formwork. The steel bars used in the precast box girder steel bar structure are usually processed in a steel bar processing workshop, and are processed by equipment such as a numerical control steel bar shearing line, a numerical control steel bar bending center, a numerical control steel bar straightening and bending integrated machine, a numerical control steel bar straightening machine, and a steel bar straight thread rolling machine.

[0051] Connect the inner top formwork and the inner bottom formwork. Install two inner end formworks at both ends of the inner top formwork and the inner bottom formwork respectively, install the inner neck formwork at the inner opening, and connect the opening of the sump opening 100 to the inner opening.

[0052] Connect the outer top formwork 201 and the outer bottom formwork 202. Install two outer end formworks 203 at both ends of the outer top formwork 201 and the outer bottom formwork 202 respectively, install the outer neck formwork at the outer opening 2011, and make the outer opening 2011 face the inner opening.

[0053] Pour concrete into the precast box girder cavity. After the concrete cures, a component with a sump arranged in the precast box girder is formed.

[0054] In summary, in the manufacturing mold and construction method for arranging a sump in a precast box girder provided by this application, the sump top formwork, the sump bottom formwork, and the two sump end formworks form the mold of the main structure of the sump, the sump neck formwork forms the sump neck mold of the sump, and a detachable connection method is adopted between the sump top formwork and the sump bottom formwork, which is beneficial to the assembly and disassembly of this mold, improves the turnover rate of this mold, and further improves the construction efficiency.

[0055] The above uses specific examples to elaborate on the present invention, which is only used to help understand the present invention and is not intended to limit the present invention. For those skilled in the technical field to which the present invention belongs, according to the idea of the present invention, several simple deductions, deformations, or substitutions can also be made.

Claims

1. A manufacturing mold for setting a sump well inside a precast box girder, characterized in that, Comprising: An internal formwork for precast box girders, comprising: an internal top formwork, an internal bottom formwork, two internal end formworks and an internal well neck formwork. The internal top formwork is detachably connected to the internal bottom formwork. The two internal end formworks are respectively arranged at two ends of the internal top formwork and the internal bottom formwork. An internal opening is formed on the internal top formwork, and the internal well neck formwork is arranged at the internal opening. An external formwork for precast box girders, which surrounds the outside of the internal formwork for precast box girders, and a cavity for forming a precast box girder, i.e., a precast box girder cavity, is formed between the external formwork for precast box girders and the inside of the precast box girders. The external formwork for precast box girders comprises: an external top formwork, an external bottom formwork, two external end formworks and an external well neck formwork. The external top formwork is detachably connected to the external bottom formwork. The two external end formworks are respectively arranged at two ends of the external top formwork and the external bottom formwork. An external opening is formed on the external top formwork, and the external opening is directly opposite to the internal opening. The external well neck formwork is arranged at the external opening. A steel bar structure for precast box girders, which is arranged in the precast box girder cavity. A sump mold, which is arranged inside the internal formwork for precast box girders. A cavity for forming a well wall of a sump, i.e., a well wall cavity, is formed between the sump mold and the internal formwork for precast box girders. The sump mold comprises: a sump top formwork, a sump bottom formwork, two sump end formworks and a sump well neck formwork. The sump top formwork is detachably connected to the sump bottom formwork. The two sump end formworks are respectively arranged at two ends of the sump top formwork and the sump bottom formwork. A sump opening is formed on the sump top formwork, and the sump well neck formwork is arranged at the sump opening and extends outwards from the sump opening. The opening of the sump opening is connected to the internal opening.

2. The manufacturing mold for arranging a catch basin inside a precast box girder according to claim 1, wherein, The sump mold further comprises: a plurality of support structures, which are sequentially arranged at intervals along the length direction of the sump top formwork and the sump bottom formwork inside the sump top formwork and the sump bottom formwork. The support structures are used for connecting the sump top formwork and the sump bottom formwork.

3. The manufacturing mold for arranging a catch basin in a precast box girder as described in claim 1, characterized in that, The sump top formwork comprises: a plurality of sump top formwork plates, which are detachably connected in series.

4. The manufacturing mold for setting a catch basin inside a precast box girder according to claim 3, characterized in that, Each sump top formwork plate comprises: a top fixed formwork plate and two top side movable formwork plates. The two top side movable formwork plates are respectively rotatably installed on two sides of the top fixed formwork plate. Among adjacent two sump top formwork plates, one end of one top fixed formwork plate is detachably connected to the other end of the other top fixed formwork plate. Among the plurality of sump top formwork plates, one end of the top fixed formwork plate at the first end and the other ends of the two top side movable formwork plates at the first end are detachably connected to one sump end formwork, and one end of the top fixed formwork plate at the last end and the other ends of the two top side movable formwork plates at the last end are detachably connected to the other sump end formwork.

5. The manufacturing mold for arranging a catch basin in a precast box girder as described in claim 1, characterized in that, The sump bottom formwork comprises: a plurality of sump bottom formwork plates, which are detachably connected in series.

6. The manufacturing mold for arranging a catch basin in a precast box girder according to claim 5, characterized in that, The bottom formwork of the sump includes: a bottom fixed top formwork and two bottom side movable formworks. The two bottom side movable formworks are respectively rotatably installed on both sides of the bottom fixed top formwork of the sump bottom formwork. In adjacent two bottom formworks of the sump, one end of one bottom fixed top formwork is detachably connected to the other end of the other bottom fixed top formwork; among the multiple bottom formworks of the sump, the bottom fixed top formwork at the head end and the other ends of the two bottom side movable formworks at the head end are detachably connected to one end formwork of the sump; one end of the bottom fixed top formwork at the tail end and the other ends of the two bottom side movable formworks at the tail end are detachably connected to the other end formwork of the sump.

7. The manufacturing mold for arranging a sump well inside a precast box girder as described in claim 1, characterized in that, The well neck formwork of the sump includes: four vertical well neck formworks of the sump. The sump opening is a rectangular sump opening, and the four vertical well neck formworks of the sump are respectively connected to the four side edges of the rectangular sump opening.

8. The manufacturing mold for arranging a catch basin in a precast box girder as claimed in claim 1, characterized in that, A sealing structure is provided between the top formwork of the sump and the bottom formwork of the sump, between the two end formworks of the sump and the top formwork and the bottom formwork of the sump at both ends.

9. A construction method for a manufacturing mold for arranging a catch basin in a precast box girder according to any one of claims 1-8, characterized in that, It includes the following steps: Install the inner bottom formwork; Install the top formwork and the bottom formwork of the sump on the inner bottom formwork, install the two end formworks of the sump at both ends of the top formwork and the bottom formwork of the sump respectively, and install the well neck formwork of the sump at the sump opening. Assemble the precast box girder steel bar structure on the inner bottom formwork; Connect the inner top formwork and the inner bottom formwork, install the two inner end formworks at both ends of the inner top formwork and the inner bottom formwork respectively, install the inner well neck formwork at the inner opening, and connect the opening of the sump opening to the inner opening; Connect the outer top formwork and the outer bottom formwork, install the two outer end formworks at both ends of the outer top formwork and the outer bottom formwork respectively, install the outer well neck formwork at the outer opening, and make the outer opening face the inner opening; Pour concrete into the cavity of the precast box girder.

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