A stiff steel corbel structure for a fair-faced concrete column and a construction method thereof

Abstract

A kind of stiff steel bracket structure for fair-faced concrete column and its construction method, including fair-faced concrete column and stiff steel bracket of pre-embedded setting on fair-faced concrete column, the fair-faced concrete column includes bottom fair-faced column section, pouring section and top fair-faced column section in turn pouring and forming from bottom to top, and pouring section is hollow structure;The stiff steel bracket is set in the hollow structure of pouring section, and the bottom of stiff steel bracket and bottom fair-faced column section abut;Compared with prior art, by sectional type in turn construction of fair-faced concrete column, it is guaranteed that stiff steel bracket is accurately installed, while the visual effect of fair-faced concrete is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fair-faced concrete, in particular to a stiff steel corbel structure for a fair-faced concrete column and a construction method thereof. BACKGROUND

[0002] With the development of science and technology and the continuous improvement of productivity, people's requirements for products have become higher and higher, which promotes the updating and exploration of building materials. The fair-faced concrete, which is simple and concise, has unique characteristics and charm although it is not decorated. This makes the fair-faced concrete more and more applied in construction projects.

[0003] The fair-faced concrete, also known as decorative concrete, is named because of its excellent decorative effect. It is once poured into shape and does not need any external decoration. The natural surface effect of cast-in-place concrete is directly used as a finish, so it is different from ordinary concrete. The surface is flat and smooth, the color is uniform, the corners are clear, there is no damage and pollution, and only a layer or two layers of transparent protective agent is coated on the surface, which looks very natural and dignified.

[0004] In engineering construction, in order to meet more use requirements, it is often necessary to set a steel corbel in the concrete member. For the fair-faced concrete structure, it is necessary to ensure the precise reservation of the steel corbel and to make the fair-faced concrete performance not affected, which has certain technical barriers.

[0005] Compared with ordinary embedded parts, the difficulty of installing the stiff steel corbel in the fair-faced concrete column lies in that the stiff steel corbel has a larger volume and has a greater impact on the steel bars in the column, which makes the concrete pouring, vibrating and other aspects difficult, and easily produces concrete defects such as honeycomb and pitted surface, thereby affecting the finished product effect of the fair-faced concrete.

[0006] Chinese patent No. CN106049704A discloses a prefabricated cast-in-place combined fair-faced concrete outer wall structure and a construction method, which mainly includes a frame column, a prefabricated plate, a prefabricated plate connecting groove, a pre-buried nut, a corbel, a lateral flow pouring hole, a panel flat lifting ring, a cast-in-place plate, a separate type of shaped steel frame, an attached type of vibrator, a reinforcing angle steel, a sun angle protection formwork and the like.

[0007] The construction method disclosed above will affect the installation of the column steel bars when installing the corbel, and will also affect the reinforcement ratio of the fair-faced concrete column, thereby affecting the strength of the fair-faced concrete column. SUMMARY

[0008] The present application is to overcome the defects in the prior art, and to provide a stiff steel corbel structure for a fair-faced concrete column and a construction method thereof, which are convenient to construct, safe and reliable, and reasonable in design.

[0009] In order to achieve the above-mentioned purposes, the present application adopts the following technical solutions: a stiff steel corbel structure for a fair-faced concrete column, comprising a fair-faced concrete column and a stiff steel corbel embedded on the fair-faced concrete column, wherein the fair-faced concrete column comprises a bottom fair-faced column segment, a pouring segment and a top fair-faced column segment successively poured and formed from bottom to top, and the pouring segment is a hollow structure; the stiff steel corbel is arranged in the hollow structure of the pouring segment, and the bottom of the stiff steel corbel abuts against the bottom fair-faced column segment.

[0010] As a preferred scheme of the present application, the top of the bottom fair-faced column segment is provided with a rabbet joint line corresponding to the stiff steel corbel.

[0011] A construction method of a stiff steel corbel structure for a fair-faced concrete column, based on the stiff steel corbel structure for a fair-faced concrete column, comprising the following steps:

[0012] Step A: preparing a bottom formwork, a segment formwork and a top formwork, and preparing a rabbet joint line;

[0013] Step B: arranging fair-faced column steel bars, and after binding the fair-faced column steel bars, closing the bottom formwork to pour the fair-faced concrete column to obtain a bottom fair-faced column segment;

[0014] Step C: installing the rabbet joint line on the top of the bottom fair-faced column segment;

[0015] Step D: installing a core mold on the rabbet joint line, and erecting a segment formwork outside the bottom fair-faced column segment;

[0016] Step E: after installing the core mold and the segment formwork, inserting a grouting guide pipe from the top to perform grouting construction to obtain a pouring segment;

[0017] Step F: after pouring, removing the core mold, and installing a stiff steel corbel in the cavity formed after removing the core mold, and binding the stiff steel corbel with the fair-faced column steel bars;

[0018] Step G: installing a top formwork to pour fair-faced concrete to obtain a top fair-faced column segment;

[0019] Step H: removing the formwork after meeting the requirements of removing the formwork, and forming the fair-faced concrete column

[0020] As a preferred scheme of the present application, after installing the rabbet joint line, the concrete at the rabbet joint is leveled and polished, and the inner side of the bottom fair-faced column segment is chiseled.

[0021] As a preferred scheme of the present application, the core mold is made of steel bars and steel wire meshes, and the size of the core mold is adapted to the installation position of the fair-faced column steel bars.

[0022] As a preferred embodiment of the present invention, the core mold is fixed after its position and elevation are checked during placement.

[0023] As a preferred embodiment of the present invention, after the core mold is removed, the casting segment is cleaned and roughened.

[0024] As a preferred embodiment of the present invention, during the installation of the stiffened steel bracket in step F, the reinforcement bars of the clear water column corresponding to the bottom of the stiffened steel bracket are laid out and verified, and some of the stirrups on the clear water column reinforcement bars are repositioned and joined together.

[0025] In a preferred embodiment of the present invention, in step G, after the top template is installed, the exposed part of the rigid steel bracket and the joint between the top template are treated.

[0026] In a preferred embodiment of the present invention, step G involves using a vibrator to assist in compaction during the pouring of fair-faced concrete.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] 1. By constructing the fair-faced concrete column in segments, the installation of rigid steel brackets is ensured to be precise while maintaining the aesthetic appeal of the fair-faced concrete.

[0029] 2. The reinforcement configuration of the fair-faced concrete column is reasonable, and the stiff steel bracket does not affect the installation of the reinforcement of the fair-faced concrete column, thus ensuring the reinforcement ratio of the fair-faced concrete column.

[0030] 3. The installation space for the rigid steel bracket is reserved under the action of the core mold, so as to facilitate the installation of the rigid steel bracket while ensuring the installation accuracy of the rigid steel bracket. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the present invention;

[0032] Figure 2 This is a structural diagram of the bottom clear water column segment;

[0033] Figure 3 This is a schematic diagram of the installation of tongue and groove seam lines;

[0034] Figure 4 This is a schematic diagram of the core mold structure;

[0035] Figure 5 This is a schematic diagram of the core mold installation;

[0036] Figure 6 This is a schematic diagram showing the connection between the core mold and the bottom clear water column segment;

[0037] Figure 7 This is a schematic diagram of the segment template installation;

[0038] Figure 8 is a schematic diagram after core mold grouting;

[0039] Figure 9 is a schematic diagram of the installation of the stiff steel bracket;

[0040] Figure 10 is a schematic diagram of the installation of the top formwork;

[0041] Figure 11 is a schematic diagram of the positioning of the stiff steel bracket;

[0042] The figure mark: segment formwork 1, rabbet joint line 2, fair-faced concrete column 3, bottom fair-faced column segment 31, pouring segment 32, fair-faced column reinforcement 4, core mold 5, stiff steel bracket 6, top formwork 7. DETAILED DESCRIPTION

[0043] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0044] As shown in Figures 1-11 A stiff steel bracket structure for a fair-faced concrete column, comprising a fair-faced concrete column 3 and a stiff steel bracket 6 embeddedly arranged on the fair-faced concrete column 3, the fair-faced concrete column 3 comprises a bottom fair-faced column segment 31, a pouring segment 32 and a top fair-faced column segment successively poured and formed from bottom to top, and the pouring segment 32 is a hollow structure; the stiff steel bracket 6 is arranged in the hollow structure of the pouring segment 32, and the bottom of the stiff steel bracket 6 abuts against the bottom fair-faced column segment 31.

[0045] The bottom fair-faced column segment 31, the pouring segment 32 and the top fair-faced column segment are constructed in segments, the bottom fair-faced column segment 31 is directly constructed at the required position, the pouring segment 32 is poured on top of the bottom fair-faced column segment 31, and the top fair-faced column segment is poured on top of the pouring segment 32, and after the pouring of the top fair-faced column segment is completed, the required fair-faced concrete column 3 with the stiff steel bracket 6 is obtained.

[0046] The height of the bottom fair-faced column segment 31 is set according to actual needs, and according to the height of the required stiff steel bracket 6, the bottom fair-faced column segment 31 is directly poured to the bottom of the required stiff steel bracket 6 under the action of one-time pouring.

[0047] The bottom of the bottom fair-faced column segment 31 is provided with a rabbet joint line 2 corresponding to the stiff steel bracket 6, and the rabbet joint line 2 is arranged at the construction joint between the bottom of the stiff steel bracket 6 and the bottom fair-faced column segment 31 to weaken the external performance of the construction joint, so as to ensure the appearance of the construction joint.

[0048] A construction method of a stiff steel bracket structure for a fair-faced concrete column, based on the stiff steel bracket structure for the fair-faced concrete column, comprising the following steps:

[0049] Step A: Prepare the bottom template, segment template 1 and top template 7, and prepare the rabbet joint line 2, the bottom template, segment template 1 and top template 7 are designed according to the design size, wherein the segment template 1 is designed according to the size of the corresponding stiff steel corbel 6.

[0050] Step B: Set the clear column steel bar 4, and after binding the clear column steel bar 4, the bottom template is closed, the clear concrete column 3 is poured to obtain the bottom clear column segment 31, and the size of the bottom clear column segment 31 to be poured is obtained under the action of the bottom template, and the strength of the bottom clear column segment 31 to be poured is ensured under the action of the clear column steel bar 4.

[0051] Step C: Install the rabbet joint line 2 on the top of the bottom clear column segment 31, and after installing the rabbet joint line 2, the rabbet joint concrete is leveled and polished, and the inside of the bottom clear column segment 31 is chiseled, which ensures the beauty of the joint and the effective connection of the new and old concrete.

[0052] Step D: Install the core mold 5 on the rabbet joint line 2, and set up the segment template 1 outside the bottom clear column segment 31, and fix the core mold 5 after checking the point and elevation, the size of the core mold 5 is matched with the installation position of the clear column steel bar 4, the size of the core mold 5 is determined according to the clear column steel bar 4, which does not affect the installation of the clear column steel bar 4, the elevation of the core mold 5 should be within the allowable error, which does not affect the installation of the stiff steel corbel 6.

[0053] Step E: After installing the core mold 5 and the segment template 1, insert the grouting pipe from the top for grouting construction, pay attention to vibration and compaction during pouring process to avoid affecting the visual quality of the clear concrete, and obtain the pouring segment 32, the core mold 5 is made of steel bars and steel wire mesh, the steel bars of the core mold 5 include horizontal steel bars, vertical steel bars and vertical steel bars, two of which are perpendicular, and under the action of welding, a three-dimensional steel bar structure with the required size is obtained, and the three-dimensional steel bar structure is wrapped with steel wire mesh to obtain the required core mold 5, the core mold 5 is an integral structure to prevent the core mold 5 from moving after grouting.

[0054] During the grouting construction process of the grouting pipe, pay attention to vibration and compaction during pouring process to avoid affecting the visual quality of the clear concrete.

[0055] Step F: after the pouring is completed, the core mold 5 is removed, and the stiff steel bracket 6 is installed in the cavity formed after the core mold 5 is removed, the stiff steel bracket 6 is tied with the clear water column steel bar 4, during the installation of the stiff steel bracket 6, the clear water column steel bar 4 corresponding to the bottom of the stiff steel bracket 6 is surveyed and reviewed, and the position of part of the stirrup on the clear water column steel bar 4 is transformed and combined, after the core mold 5 is removed, the pouring section 32 is cleaned and chipped.

[0056] During the tying of the stiff steel bracket 6 and the clear water column steel bar 4, the elevation of the clear water column steel bar 4 at the bottom of the stiff steel bracket 6 is strictly controlled according to a single steel bar, and the site is surveyed and reviewed.

[0057] Step G: the top formwork 7 is installed, the clear water concrete is poured, the top clear water column section is obtained, after the top formwork 7 is installed, the joint between the exposed part of the stiff steel bracket 6 and the top formwork 7 is treated to prevent slurry leakage, and during the pouring of the clear water concrete, due to the small space at the corner of the stiff steel bracket 6, a vibrator is used for auxiliary vibration, and a 35 small vibrator rod and other measures are used for auxiliary vibration.

[0058] Step H: after the demolding requirement is met, the formwork is removed, and the clear water concrete column 3 is formed.

[0059] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application; therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0060] Although the terms such as segment formwork 1, tongue-and-groove joint line 2, clear water concrete column 3, bottom clear water column section 31, pouring section 32, clear water column steel bar 4, core mold 5, stiff steel bracket 6, top formwork 7, etc. are used more frequently in the drawings, the possibility of using other terms is not excluded. The use of these terms is only for the convenience of describing and explaining the essence of the present application; any kind of additional limitation is contrary to the spirit of the present application.

Claims

1. A construction method for a rigid steel bracket structure for a fair-faced concrete column, comprising a fair-faced concrete column (3) and a rigid steel bracket (6) pre-embedded on the fair-faced concrete column (3), characterized in that, The fair-faced concrete column (3) includes a bottom fair-faced concrete column segment (31), a casting segment (32), and a top fair-faced concrete column segment, which are cast sequentially from bottom to top. The casting segment (32) is a hollow structure. The rigid steel bracket (6) is set inside the hollow structure of the casting segment (32), and the bottom of the rigid steel bracket (6) abuts against the bottom fair-faced concrete column segment (31). The column also includes the following steps: Step A: Prepare the bottom template, segment template (1) and top template (7), and prepare the tongue and groove seam line (2); Step B: Set up the fair water column reinforcement (4), and after the fair water column reinforcement (4) is tied, close the bottom formwork and pour the fair water concrete column (3) to obtain the bottom fair water column segment (31). Step C: Install the tongue and groove seam line (2) on the top of the bottom clear water column section (31); Step D: Install the core mold (5) on the tongue and groove joint line (2), and set up the segment template (1) on the outside of the bottom clear water column segment (31). The size of the core mold (5) is adapted to the installation position of the clear water column reinforcement (4). The size of the core mold (5) is determined according to the clear water column reinforcement (4). The core mold (5) does not affect the installation of the clear water column reinforcement (4). Step E: After the core mold (5) and segment template (1) are installed, the grouting pipe is inserted from the top to carry out grouting construction and the casting segment (32) is obtained. The core mold (5) is made of steel bars and wire mesh. The steel bars of the core mold (5) include horizontal steel bars, longitudinal steel bars and vertical steel bars. The horizontal steel bars, longitudinal steel bars and vertical steel bars are perpendicular to each other and, under the action of welding, a three-dimensional steel bar structure of the required size is obtained. The three-dimensional steel bar structure is wrapped with wire mesh. The core mold (5) is an integral structure. Step F: After the casting is completed, remove the core mold (5) and install the rigid steel bracket (6) in the cavity formed after removing the core mold (5). The rigid steel bracket (6) is tied to the water column reinforcement (4). Step G: Install the top template (7) and pour fair-faced concrete to obtain the top fair-faced column segment; Step H: After meeting the demolding requirements, remove the formwork and form the fair-faced concrete column (3).

2. The construction method for a rigid steel bracket structure for fair-faced concrete columns according to claim 1, characterized in that, The bottom clear water column segment (31) has a tongue and groove seam line (2) corresponding to the rigid steel bracket (6) at the top.

3. The construction method for a rigid steel bracket structure for fair-faced concrete columns according to claim 1, characterized in that, In step C, after the tongue and groove joint line (2) is installed, the concrete at the tongue and groove joint is leveled and polished, and the inner side of the bottom clear water column section (31) is roughened.

4. The construction method for a rigid steel bracket structure for fair-faced concrete columns according to claim 1, characterized in that, The core mold (5) is placed and fixed after the position and elevation are checked.

5. A construction method for a rigid steel bracket structure for fair-faced concrete columns according to claim 4, characterized in that, After the core mold (5) is removed, the casting segment (32) is cleaned and roughened.

6. A construction method for a rigid steel bracket structure for fair-faced concrete columns according to claim 1, characterized in that, During the installation of the stiff steel bracket (6) in step F, the clear water column steel bar (4) corresponding to the bottom of the stiff steel bracket (6) is laid out and checked, and the position of some of the stirrups on the clear water column steel bar (4) is changed and the bars are joined together.

7. A construction method for a rigid steel bracket structure for fair-faced concrete columns according to claim 1, characterized in that, In step G, after installing the top template (7), the exposed part of the rigid steel bracket (6) and the joint between the top template (7) are treated.

8. A construction method for a rigid steel bracket structure for fair-faced concrete columns according to claim 7, characterized in that, In step G, a vibrator is used to assist in compaction during the pouring of fair-faced concrete.

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