CN209538451U - Column plate concrete combined type shear wall - Google Patents

Abstract

The utility model discloses column plate concrete combined type shear walls, including steel column, steel form, connection fastener and cast-in-place concrete layer；Steel column includes edge of a wing portion, and connection fastener is fixed with steel form, and connection fastener can be provided with retaining ring portion and expansion section along steel column length direction retaining ring in the portion of the steel column edge of a wing on fastener；Steel form includes internal model and external mold, and concrete layer is arranged between internal model and external mold.The advantage of the utility model is: first, quality stability is good, high production efficiency；It second, steel column provides face outer support power for the installation of steel form, can exempt to support when steel form is installed, improve construction efficiency；Third, being set to the steel column of shear wall left and right ends, it is ensured that shear wall is reliably connected with neighbouring girder steel；Fourth, steel form combines the template to form poured in place concrete layer with steel column, and it is the permanent primary structure member of shear wall skeleton, connection is combined by retaining ring mode with steel column, construction efficiency is high, and the two can be made to be reliably connected.

Description

Column slab concrete combined shear wall

technical field

The utility model relates to a column-slab concrete combined shear wall.

Background technique

Shear walls, also known as wind-resistant walls, earthquake-resistant walls or structural walls, are walls in houses or structures that mainly bear the horizontal loads caused by wind loads or earthquakes, and prevent structural shear (shear) damage. According to the structural materials, shear walls can be divided into steel plate shear walls, reinforced concrete shear walls and reinforced block shear walls. Among them, reinforced concrete shear walls are the most commonly used. Reinforced concrete shear walls are heavy, the cast-in-place construction procedures are cumbersome, and construction efficiency is low; prefabricated production, transportation and installation costs are high, and the reliability of on-site installation and connection of prefabricated concrete shear walls is poor.

Steel plate shear walls can be divided into single steel plate shear walls and double steel plate shear walls. Single steel plate shear walls need on-site formwork and steel bar binding. The construction process is cumbersome and the construction efficiency is low. It is not suitable for industrial production and assembly construction; The steel plate shear wall needs to be temporarily supported on site. At the same time, if the double steel plate is prefabricated in the factory, the weight of the single piece is relatively heavy. If it is combined on site, it needs to be connected by welding or bolts. It is difficult to set up the connection nodes between the double steel plate shear wall and the adjacent steel beam, and the reliability is difficult to guarantee.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a column-slab-concrete combined shear wall.

The purpose of this utility model is achieved through the following technical solutions:

Column slab concrete combined shear wall, including steel columns, steel formwork, connecting fasteners and cast-in-place concrete layer; steel columns include flanges, connecting fasteners and steel formwork are fixed, and connecting fasteners can be fastened along the length of steel columns It is set on the flange of the steel column, and the connecting fastener is provided with a buckle part and an enlarged part. The buckle part can be firmly buckled on the flange of the steel column to avoid The direction falls off, and the enlarged part can be quickly and accurately buckled on the flange of the steel column, avoiding the collision between the connecting fastener and the steel column when buckling the sleeve;

The steel formwork includes an inner formwork and an outer formwork, and a concrete layer is arranged between the inner formwork and the outer formwork to form a composite shear wall as a whole.

As a preferred manner, the connecting fasteners include middle fasteners and side fasteners.

As a preferred mode, the middle fastener includes an equal-width section and an enlarged section, the equal-width end includes a first body and L-shaped branches arranged on both sides of the first body, and the enlarged section includes a second body, a first trapezoidal portion, and a second trapezoidal portion , the first baffle and the second baffle;

The first trapezoidal part and the second trapezoidal part are arranged on two sides of the second body, the first baffle is connected to the first trapezoidal part, and the second baffle is connected to the second trapezoidal part.

As a preferred mode, the side fastener includes a shoe plate, a connecting plate and a bent baffle;

The shape of the shoe-shaped plate is composed of a rectangle and a right-angled trapezoid. The connecting plate includes a rectangular side plate and a trapezoidal side plate. The angle range between the rectangular side plate and the trapezoidal side plate is [130°, 180°); The range of angles between plate and quadrilateral plate, rectangular plate and quadrilateral plate is [130°, 180°).

As a preferred manner, the thickness of the steel template is h, and 1mm≤h≤12mm.

As a preferred manner, a convex portion or a concave portion is provided on the steel template.

As a preferred method, the steel column adopts hot-rolled H-shaped steel, hot-rolled I-shaped steel, welded H-shaped steel, cross-shaped column or other solid abdominal columns with open cross-sections, so as to ensure that the steel column has at least two flanges.

As a preferred mode, it also includes reinforcements and steel beam connectors, the reinforcements include steel bars and U-shaped pieces, the reinforcement bars and U-shaped pieces are arranged on the outside of the inner mold or the outer mold; the steel beam connectors include steel plates or H-shaped steel is respectively arranged on the outside of the inner and outer formwork and on the side columns.

The beneficial effects of the utility model are: the advantages of the utility model are: firstly, the column-slab-concrete composite structure is adopted, the steel column, the steel formwork and its connecting fasteners constitute the shear wall skeleton, and the components of the skeleton are prefabricated through industrialization, and the quality is Good stability and high production efficiency; secondly, as the hidden column in the shear wall, the steel column has mature installation and connection technology, which is convenient and reliable. Support-free, improving construction efficiency and reducing construction measures; thirdly, the steel columns set at the left and right ends of the shear wall can be used to connect the shear wall and adjacent steel beams. The steel columns have certain strength and rigidity, and they have wings. The edge part is conducive to the setting of connection nodes to ensure the reliable connection between the shear wall and the adjacent steel beams; Fourth, the steel formwork is combined with the steel column to form the formwork for the cast-in-place concrete layer, and is also a permanent force-bearing member of the shear wall skeleton , It is combined with the steel column through a buckle sleeve, no welding and bolt connection are required, the construction efficiency is high, and the two can be reliably connected by their own weight.

Description of drawings

Fig. 1 is a schematic sectional view of the structure of the utility model;

Fig. 2 is the utility model steel template structure schematic diagram;

Fig. 3 is the structural representation of middle part fastener;

Fig. 4 is the structural representation of side fastener;

Fig. 5 is a schematic diagram of the combination of steel formwork and connecting fasteners;

Figure 6 is one of the installation and construction processes;

Figure 7 is the second installation process;

Figure 8 is the third installation process;

Figure 9 is the fourth installation process;

Figure 10 is the fifth installation process;

In the figure, 1-steel formwork, 1.1-convex part, 2-steel column, 3-middle fastener, 3.1-equal width section, 3.2-expanded section, 4-side fastener, 4.1-shoe-shaped plate, 4.2- Bent baffle, 5-concrete layer.

Detailed ways

The technical scheme of the utility model is further described in detail below in conjunction with the accompanying drawings, but the protection scope of the utility model is not limited to the following description.

As shown in Figure 1 and Figure 5, the column-slab concrete combined shear wall includes steel columns 2, steel formwork 1, connecting fasteners and cast-in-place concrete layer 5; steel columns 2 include flanges, connecting fasteners and steel The template 1 is fixed, and the connecting fastener can be buckled on the flange of the steel column 2 along the length direction of the steel column 2. The connecting fastener is provided with a buckle part and an enlarged part, and the buckle part can be firmly buckled on the steel column 2. On the flange part, avoid falling off in other directions except the length direction of the steel column 2, and the enlarged part can be quickly and accurately buckled on the flange part of the steel column 2, so as to avoid the collision between the connecting fastener and the steel column 2 when buckling the sleeve;

The steel formwork 1 includes an inner mold and an outer mold, and a concrete layer 5 is arranged between the inner mold and the outer mold to form a composite shear wall as a whole.

In a preferred embodiment, the connecting fasteners include middle fasteners 3 and side fasteners 4 .

In a preferred embodiment, as shown in Figure 3, the middle fastener 3 includes an equal-width section 3.1 and an enlarged section 3.2, the equal-width section 3.1 includes the first body and L-shaped branches arranged on both sides of the first body, and the enlarged section 3.2 including a second body, a first trapezoidal portion, a second trapezoidal portion, a first baffle and a second baffle;

The first trapezoidal part and the second trapezoidal part are arranged on two sides of the second body, the first baffle is connected to the first trapezoidal part, and the second baffle is connected to the second trapezoidal part. (Preferably, the first body is rectangular, the section of the L-shaped branch is L-shaped; the second body is trapezoidal, the upper bottom of the second body is equal to the width of the first body, and the lower bottom of the second body is 1mm longer than the upper bottom -2mm)

In a preferred embodiment, as shown in Figure 4, the side fastener 4 includes a shoe-shaped plate 4.1, a connecting plate and a bent baffle 4.2;

The shape of the shoe-shaped plate 4.1 is composed of a rectangle and a right-angled trapezoid. The connecting plate includes a rectangular side plate and a trapezoidal side plate. The angle range between the rectangular side plate and the trapezoidal side plate is [130°, 180°), that is, the angle range is 130° ° to 180°, excluding 180°; bending baffle 4.2 includes rectangular plate and quadrilateral plate, the angle range between rectangular plate and quadrilateral plate is [130°, 180°), that is, the angle range is from 130° to Between 180°, not including 180°.

In a preferred embodiment, the steel formwork 1 is a steel formwork 1, the thickness of the steel formwork 1 is h, and 1mm≤h≤12mm.

In a preferred embodiment, the steel template 1 is provided with a convex portion 1.1 or a concave portion, and preferably, the cross-sectional shape of the convex portion 1.1 or the concave portion is U-shaped, V-shaped, arc-shaped or trapezoidal.

In a preferred embodiment, the steel column 2 is made of hot-rolled H-shaped steel, hot-rolled I-shaped steel, welded H-shaped steel, cross-shaped column or other solid-web columns with an open cross-section, ensuring that the steel column 2 has at least two flanges.

In a preferred embodiment, the utility model also includes reinforcements and steel beam connectors, the reinforcements include steel bars and U-shaped pieces, and the steel bars and U-shaped pieces are arranged on the outside of the inner mold or the outer mold to play a reinforcing role; The steel beam connectors include steel plates or H-shaped steels, which are respectively arranged on the outer sides of the inner and outer formworks and on the side columns.

In the utility model, the two inner and outer steel formworks 1 forming the shear wall are combined and connected on site, and the individual weight is relatively light, which is convenient for transportation, hoisting and installation. The steel formwork 1 and the steel column 2 are inserted and connected from top to bottom through buckle sleeves, without welding and bolt connection, and the connection between the two is firm and reliable through self-weight.

The construction method of the column-slab concrete combined shear wall, as shown in Figure 6-Figure 10, includes the following steps:

Step 1: Fix the prefabricated connecting fasteners (including middle fasteners 3 and side fasteners 4) to the steel formwork 1;

Step 2: Install the steel formwork 1 on the steel column 2 by connecting fasteners;

Step 3: Concrete is poured between the inner and outer steel formwork 1 and the steel column 2 to form the composite shear wall as a whole.

In a preferred embodiment, as shown in FIG. 2 , a steel formwork 1 with a convex portion 1.1 or a concave portion is formed by pressing or bending a steel plate, so that the entire steel formwork 1 is wave-shaped or tooth-shaped, so that it is formed on the steel formwork 1. It has a certain rigidity outside the plane, and is used as a permanent steel formwork 1 for the skeleton of the shear wall. The thickness of the steel formwork 1 is relatively thin, usually not more than 12mm (the minimum thickness is 1mm). The steel formwork 1 and the steel column 2 are connected by the middle fastener 3 and the side fastener 4 to form a shear wall skeleton. The pressed or bent steel formwork 1 can play the following functions: (1) increase the out-of-plane rigidity of the steel formwork 1; (2) increase the friction surface with concrete, and improve the slip resistance between concrete and steel formwork 1 .

In a preferred embodiment, hot-rolled H-shaped steel, hot-rolled I-shaped steel, welded H-shaped steel, cross column or other open-type solid web columns are used, so that the middle fastener 3 and the side fastener 4 are buckled on the steel column. 2 on the flange. The steel column 2 is perpendicular to the direction of the corrugated rib of the steel formwork 1 or the convex part 1.1 or the concave part, forming a two-way strengthening effect and providing two-way out-of-plane rigidity for the shear wall.

In a preferred embodiment, the middle fastener 3 is processed by welding, bending or stamping, which is similar to a C shape, and is characterized in that it has an equal width section 3.1 and an enlarged section 3.2 in the length direction, and the inner dimension of the equal width section 3.1 is the same as The flange part is equivalent to that of the steel column 2 (preferably, the inner dimension width of the equal width section 3.1 is h1, and the width of the flange part is h2, h2+1mm≤h1≤h2+5mm) The enlarged section 3.2 is trumpet-shaped, which is convenient to buckle and cover the flange of the steel column 2 more accurately and quickly.

In a preferred embodiment, the side fastener 4 is half of the middle fastener 3 and is mainly used for connecting the side column of the shear wall skeleton (steel column 2 ) with the steel formwork 1 .

The features of the utility model are as follows:

(1) The structure and combination form of the column-slab concrete combined shear wall:

Advantage 1: For the first time, the steel column 2 and steel formwork 1 are combined to form a steel plate shear wall skeleton. The steel column 2, steel formwork 1 and connecting fasteners can be prefabricated in the factory, realizing the industrial production of the main parts of the steel plate shear wall;

Advantage 2: The steel column 2 is used as the vertical force framework of the shear wall. The installation and connection technology of the steel column 2 is mature and reliable. At the same time, the steel column 2 can be used not only as the side formwork of the shear wall, but also as a shear wall The side columns are convenient for setting connection nodes and form reliable connections with adjacent steel beams.

Advantage 3: The two internal and external steel formworks 1 that make up the shear wall are combined and connected on site, which is light in weight and easy to transport, lift and install;

Advantage 4: The steel formwork 1 and the steel column 2 are combined and connected by buckle sleeves, without welding and bolt connection, and the connection between the two can be made firm and reliable by self-weight.

(2) As shown in Figure 5, the connection between the steel formwork 1 and the connecting fasteners is prefabricated in the factory, usually by welding. The welding is fillet welding, four-sided welding or intermittent welding to reduce the heat input caused by welding and reduce The steel formwork 1 is deformed.

(3) The unique trumpet-like shape of the fastener is conducive to fast and accurate fastening and fitting on the flange of the steel column 2.

The above is only a preferred embodiment of the utility model, and is not intended to limit the utility model. It should be pointed out that any modification, equivalent replacement and improvement made within the spirit and principles of the utility model, etc., All should be included within the protection scope of the present utility model.

Claims (8)

1. column plate concrete combined type shear wall, it is characterised in that: including steel column, steel form, connection fastener and cast-in-place concrete layer；

Steel column includes edge of a wing portion, and connection fastener is fixed with steel form, and connection fastener can be along steel column length direction retaining ring in steel In the edge of a wing portion of column, retaining ring portion and expansion section are provided on fastener；

Steel form includes internal model and external mold, and concrete layer is arranged between internal model and external mold.

2. column plate concrete combined type shear wall according to claim 1, it is characterised in that: fastener includes middle part fastener and side Fastener.

3. column plate concrete combined type shear wall according to claim 2, it is characterised in that: middle part fastener includes wide section and expands Big section, wide section includes the first noumenon and the L shape branch that the first noumenon two sides are arranged, and expanding reach includes the second ontology, the first ladder Shape portion, the second trapezoidal portion, first baffle and second baffle；

The two sides of the second ontology are arranged in first trapezoidal portion and the second trapezoidal portion, and first baffle is connect with the first trapezoidal portion, and second Baffle is connect with the second trapezoidal portion.

4. column plate concrete combined type shear wall according to claim 2 or 3, it is characterised in that: side fastener include boot-shaped plate, Connecting plate and bending baffle；

The shape of boot-shaped plate is made of rectangle and right-angled trapezium, and connecting plate includes rectangular side panels and trapezoidal side plate, rectangular side panels and Angular range between trapezoidal side plate be [130 °, 180 °)；Bending baffle includes rectangular slab and quadrangular plate, rectangular slab and four sides Angular range between shape plate be [130 °, 180 °).

5. column plate concrete combined type shear wall according to claim 1, it is characterised in that: steel form with a thickness of h, 1mm≤h ≤12mm。

6. column plate concrete combined type shear wall according to claim 5, it is characterised in that: protrusion or recessed is arranged on steel form Portion.

7. column plate concrete combined type shear wall described according to claim 1 or 2 or 3 or 5 or 6, it is characterised in that: steel column uses Hot rolled H-shaped, hot rolling I-steel, welded H section steel, cross column or other sections are open-type reality abdomen column, guarantee that steel column has At least two edges of a wing portion.

8. column plate concrete combined type shear wall described according to claim 1 or 2 or 3 or 5 or 6, it is characterised in that: it further includes adding Strong part and girder steel connector, the reinforcer include reinforcing bar and U-shaped part, and the outside of internal model or external mold is arranged in reinforcing bar and U-shaped part； The girder steel connector includes steel plate or H profile steel, is separately positioned on the outside of inner and outer template and on edge column.