Connecting structure of cast-in-place hidden column and prefabricated part and construction method
阅读说明：本技术 现浇暗柱与预制构件连接结构及施工方法 (Connecting structure of cast-in-place hidden column and prefabricated part and construction method ) 是由 恽燕春 丁泓 魏爽 方松青 周轩 于 2019-11-06 设计创作，主要内容包括：本发明涉及一种现浇暗柱与预制构件连接结构,预制构件为预制双面叠合墙板,预制双面叠合墙板的端部设有一对预留企口,预留企口部位预埋有一垂直贯穿双面叠合墙板的对拉PVC套管；所述预留企口用于现浇时现浇暗柱模板贴合定位的部位；所述预留企口以及所述现浇暗柱的外侧设有相平齐的抹灰层。本发明现浇暗柱与预制构件连接结构的节点处理均在工厂生产完成,现场操作得以简化；减少了现场抹灰的工作量和工作时间,提高了工作效率；现场施工更加简洁,操作方便。(The invention relates to a cast-in-place hidden column and prefabricated component connecting structure, wherein a prefabricated component is a prefabricated double-sided superposed wallboard, a pair of reserved grooves and tongues are arranged at the end part of the prefabricated double-sided superposed wallboard, and a counter-pull PVC sleeve which vertically penetrates through the double-sided superposed wallboard is pre-embedded in the reserved groove and tongue part; the reserved tongue-and-groove is used for the position where the cast-in-place hidden column template is attached and positioned during cast-in-place; and the outer sides of the reserved rabbet and the cast-in-place hidden column are provided with parallel and level plastering layers. The node treatment of the cast-in-place hidden column and prefabricated part connecting structure is completed in factory production, so that the field operation is simplified; the workload and the working time of field plastering are reduced, and the working efficiency is improved; the site operation is more concise, and the operation is convenient.)
1. The utility model provides a cast-in-place dark post and prefabricated component connection structure which characterized in that:
the prefabricated component is a prefabricated double-sided superposed wallboard (1), a pair of reserved rabbet (6) is arranged at the end part of the prefabricated double-sided superposed wallboard (1), and a split PVC sleeve (2) which vertically penetrates through the double-sided superposed wallboard (1) is embedded in the position of the reserved rabbet (6);
the reserved rabbet (6) is used for the position where the cast-in-place hidden column template (13) is attached and positioned during cast-in-place;
and the outer sides of the reserved rabbet (6) and the cast-in-place hidden column are provided with parallel and level plastering layers.
2. The cast-in-place dark post and prefabricated component connection structure of claim 1, characterized in that: the reserved rabbet (6) is rectangular.
3. The cast-in-place dark post and prefabricated component connection structure of claim 1, characterized in that: cast-in-place hidden post reinforcing steel bars (12) are arranged inside the cast-in-place hidden posts.
4. A construction method of a cast-in-place hidden column and prefabricated part connecting structure according to claim 1, characterized by comprising the following steps:
s1, prefabricating a double-faced superposed wallboard (1) with a reserved tongue-and-groove (6) at the end part;
s2, building a mold on site by using the reserved tongue-and-groove (6) and pouring;
s3, removing the mould, and reinforcing the junction of the prefabricated part and the cast-in-place hidden column through a steel wire mesh sheet (17);
and S4, performing plastering construction at the rabbet part and the outer side of the cast-in-place hidden column, and enabling the height of the plastering layer to be flush with the height of the reserved rabbet (6).
5. The construction method of a cast-in-place dark post and prefabricated part connecting structure according to claim 4, wherein: in step S1, the reserve groove (6) is formed by providing a plastic template (10) on a mold table (11).
6. The construction method of a cast-in-place dark post and prefabricated part connecting structure according to claim 4, wherein: in step S2, the method sequentially includes the following steps: s2-1, hoisting and adjusting the prefabricated part; s2-2, binding hidden column reinforcing steel bars; s2-3, closing the prefabricated part rabbet and the hidden column; s2-4, reinforcing and fixing the template; s2-5, pouring concrete.
7. The construction method of a cast-in-place dark post and prefabricated part connecting structure according to claim 6, wherein: in the step S2-4, a plurality of wood purlins (15) are arranged on the outer side of the cast-in-place concealed column template (13), steel pipes (14) are arranged on the outer sides of the wood purlins (15), counter-pulling bolts (16) are adopted to penetrate through the steel pipes (14), the cast-in-place concealed column template (13) and the counter-pulling PVC sleeves (2), and the steel pipes (14) are tightly pressed through matched nuts.
8. The construction method of a cast-in-place dark post and prefabricated part connecting structure according to claim 4, wherein: in step S4, the height of the plastering layer (18) is the same as the position of the groove edge of the reserved rabbet, and the plastering layer is kept horizontal.
Technical Field
The invention relates to an installation structure of a prefabricated part, in particular to a connecting structure of a cast-in-place hidden column and the prefabricated part and a construction method, which are used for constructing a double-faced superposed shear wall.
Background
In the use process of the assembled superposed shear wall, due to the arrangement of the edge constraint members (hidden columns), the two ends of the double-faced superposed shear wall are respectively provided with cast-in-place hidden columns, as shown in fig. 1.
Currently, the edge configuration of a typical double-sided, overlapping shear wall is shown in fig. 2.
According to the current construction procedure, ① overlapped wall board hoisting and adjusting → ② cast-in-place embedded column reinforcement → ③ cast-in-place embedded column formwork mounting → ④ formwork reinforcing and fixing → ⑤ concrete pouring → ⑥ formwork removal → ⑦ junction reinforcing mesh → ⑧ surface plastering.
The setting position of the cast-in-place hidden column template is arranged on the outer side of the superposed wall, namely after the casting is finished, the boundary of the cast-in-place hidden column and the superposed wall plate are kept flush, as shown in figures 3-4.
However, in actual construction, according to relevant specifications of construction quality acceptance, the treatment of the connection part of the cast-in-place part and the prefabricated part has the following two problems:
1. the allowable deviation of general plastering meeting the requirements in the acceptance standard of the quality of architectural decoration and finishing engineering is 3-4mm, the surface flatness of the prefabricated part can meet the requirements according to different processes, the surface flatness of the prefabricated part and the surface flatness of the cast-in-place member of the cast-in-place structural wall body are respectively 3mm and 8mm according to the allowable deviation requirements of the acceptance standard of the quality of construction of concrete structural engineering, and the wall body can meet the acceptance requirements of subsequent procedures after plastering treatment is needed;
2. the 'quality acceptance standard of building decoration project' clearly states that 'when the reinforcing net is adopted, the lap joint width of the reinforcing net and each base body is not less than 100 mm', the reinforcing measures for preventing cracking should be adopted when the plastering on the surface of the joint of the base bodies made of different materials is adopted.
Therefore, although the double-sided superposed shear wall surface meets the requirement of plastering-free, integral plastering is still needed, as shown in fig. 5. The construction is still troublesome and the cost is high.
Disclosure of Invention
The purpose of the invention is: the connecting structure of the cast-in-place hidden column and the prefabricated part and the construction method thereof are provided, the advantage of plastering-free surface of the prefabricated part is exerted to the greatest extent, and the requirements of the specifications of the two points are met, so that the double-sided superposed shear wall and the hidden column construction node are improved.
The invention adopts the following technical scheme:
a cast-in-place hidden column and prefabricated component connection structure, the prefabricated component is a prefabricated double-sided superposed
Preferably, the
Preferably, cast-in-place hidden column reinforcing
A construction method of the cast-in-place hidden column and prefabricated part connecting structure comprises the following steps:
s1, prefabricating a double-sided laminated
s2, building a mold on site by using the reserved tongue-and-
s3, removing the die, and reinforcing the junction of the prefabricated part and the cast-in-place hidden column through a
and S4, performing plastering construction at the rabbet part and the outer side of the cast-in-place hidden column, and enabling the height of the plastering layer to be flush with the height of the
Preferably, in step S1, the
Preferably, step S2 includes the following steps in sequence: s2-1, hoisting and adjusting the prefabricated part; s2-2, binding hidden column reinforcing steel bars; s2-3, closing the prefabricated part rabbet and the hidden column; s2-4, reinforcing and fixing the template; s2-5, pouring concrete.
Further, in step S2-4, a plurality of
Preferably, in step S4, the height of the
The invention has the beneficial effects that:
1) the node treatment of the cast-in-place hidden column and prefabricated part connecting structure is finished in factory production, and the field operation is simplified;
2) the node of the connecting structure of the cast-in-place hidden column and the prefabricated part reduces the workload and the working time of field plastering and improves the working efficiency;
3) the cast-in-place hidden column and prefabricated part connecting structure has the advantages of simpler site construction, strong practicability and convenient operation;
4) the design is ingenious, the implementation is convenient, and the method has a wide popularization and application prospect.
Drawings
Fig. 1 is a schematic view of the joint of a double-sided superimposed shear wall and a hidden column.
Fig. 2 is a schematic view of the edge configuration of a double-sided overlapping shear wall of the prior art.
FIG. 3 is a schematic view of a prior art preform opening and closing of a blind stud.
Fig. 4 is a schematic view of pouring at the joint of a double-faced superposed shear wall and a cast-in-place embedded column in the prior art.
Figure 5 is a schematic representation of plastering at the junction of a double-sided laminated shear wall and a cast-in-place structural column of the prior art.
FIG. 6 is a schematic view of a structure of a node at the edge of a double-sided stacked shear wall according to the present invention.
Fig. 7 is a schematic view when making a reserve groove and tongue.
Fig. 8 is a schematic combination diagram of edge nodes of a double-sided superimposed shear wall and cast-in-place section reinforcing steel bars.
Fig. 9 is a schematic view after covering the cast-in-place section formwork.
Fig. 10 is a schematic view of the cast-in-place section formwork being compressed using tie bolts and steel pipes.
Fig. 11 is a schematic view of fig. 10 after the concrete has been poured.
Fig. 12 is a schematic view of fig. 11 with the counter-pulling bars removed.
FIG. 13 is a schematic view of FIG. 12 after laying of the reinforcing mesh.
Fig. 14 is a schematic view of fig. 13 after the application of the render coat.
Fig. 15 is a perspective view of the edge node structure of the double-sided stacked shear wall according to the present invention.
FIG. 16 is a combined perspective view of edge nodes of a double-faced superimposed shear wall and cast-in-place section reinforcing steel bars
In the drawing, 1, a prefabricated double-faced overlapped wallboard, 2, a counter-pull screw rod pvc pipe sleeve, 3, a vertical distribution rib, 4, a horizontal distribution rib, 5, a steel bar truss, 6, a reserved rabbet, 7, a steel frame side die, 8, concrete, 9, a steel bar, 10, a plastic template, 11, a die table, 12, a cast-in-place section steel bar, 13, a cast-in-place section template, 14, a steel pipe, 15, a wood purlin, 16, a counter-pull bolt, 17, a reinforcing mesh and 18, a plastering layer are arranged.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Referring to fig. 6, 8, 9, 12 and 13-16, a cast-in-place hidden column and prefabricated component connecting structure, the prefabricated component is a prefabricated double-sided superposed
In this embodiment, the
In this embodiment, referring to fig. 8-9, the cast-in-place dark column is internally provided with cast-in-place dark column reinforcing
A construction method of the cast-in-place hidden column and prefabricated part connecting structure comprises the following steps:
s1, prefabricating a double-sided laminated
s2, building a mold on site by using the reserved tongue-and-
s3, removing the die, and reinforcing the junction of the prefabricated part and the cast-in-place hidden column through a
s4, performing plastering construction at the rabbet part and the outer side of the cast-in-place hidden column, and enabling the height of the plastering layer to be flush with the height of the
In step S1, the
In step S2, the method sequentially includes the following steps: s2-1, hoisting and adjusting the prefabricated part; s2-2, binding hidden column reinforcing steel bars; s2-3, closing the prefabricated part rabbet and the hidden column; s2-4, reinforcing and fixing the template; s2-5, pouring concrete, as shown in figure 9.
In the step S2-4, a plurality of
In step S4, the height of the
The invention furthest exerts the advantage of plastering-free surface of the prefabricated part and simultaneously meets the standard requirement, thereby improving the double-sided superposed shear wall and the hidden column construction node. The outer sides of the inner and outer leaf wall boards of the double-sided superposed shear wall are respectively provided with a tongue-and-groove from bottom to top, wherein the tongue-and-groove is 10mm deep and 250mm wide. Through the node treatment, the subsequent plastering only needs to be carried out on the edge of the groove, so that the surface smoothness of the cast-in-place member and the standard requirement that a reinforcing net needs to be added at the joint of two material matrixes are ensured, the plastering is reduced to the maximum extent, and the advantages of the fabricated building are exerted.
While the preferred embodiments of the present invention have been described, those skilled in the art will appreciate that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
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