CN111877556A - Assembly building bracket connecting piece - Google Patents

Abstract

The invention relates to an assembly building bucket arch connector, belonging to the field of assembly building. The technical scheme adopted in the present invention is: including upper arch and lower arch, the upper arch and lower arch are matched up and down, the joint surface of the upper arch and the lower arch is provided with a beam fixing groove into which H-shaped steel is inserted, and the tenon of the upper arch is inserted into the lower arch The beam is fixed in the groove and mortise, forming a cross arch and mortise and tenon combination. The beneficial effects of the present invention: the device adopts the bucket arch connector adapted to the circular column as the column beam connector of the assembled building to replace the problem of insufficient bending and tensile stress existing in the H-type column; H-beams and circular columns can replace welding, and the connection strength can meet the seismic requirements; it solves the technical problem that the bending force of the welding seam of the steel structure building is not equal to that of the weldment. The bucket arch connector of the device can be produced in a standardized manner, and can be manufactured by machining after cast steel, and then through the processes of heat treatment, hot-dip galvanizing, and dipping, and the product quality is stable.

Description

Assembly of building bucket arch connectors

technical field

The invention relates to an assembly building bucket arch connector, belonging to the field of assembly building.

Background technique

Modern steel structure buildings are mainly composed of section steel as the overall building frame, and prefabricated panels as walls and floor layers. The components or parts are usually connected by welding seams, screws and rivets. In the process of steel structure connection, steel beams and columns play a major role, which form the main body of the entire steel structure frame building.

The applicant found that H-beams are the most ideal beam-column materials for high-rise buildings due to their large wall thickness, many specifications, large profiles, large bearing capacity, large torque resistance, and large span. However, the proportion used in modern steel structure buildings is very low. The reason is that the wall thickness of H-beam is large, and it is difficult to achieve all the excellent guarantee factors in welding. Since the heat treatment process was not designed in the design, the advantages of H-beams cannot be reflected. In the field of steel structure building connection technology, a good method has not been found to replace the welding process.

The applicant has applied for a bucket arch connector of H-shaped steel (application number 201811415969X), but the column is made of H-shaped steel, and the supporting side of the column has slightly poor tensile and flexural performance. Improve the overall tensile and bending performance, reduce processing difficulty and cost.

SUMMARY OF THE INVENTION

In view of the above problems, we propose an assembly building bucket arch connector, which uses seamless steel columns as columns to replace H-beams to solve the connection problem between circular columns and H-beams.

In order to achieve the above-mentioned purpose, the technical scheme adopted in the present invention is: assembling a building bucket arch connector, including an upper arch and a lower arch, the upper arch and the lower arch are matched up and down, and the joint surface of the upper arch and the lower arch is provided with an H-shaped steel inserted beam for fixing. groove, and the tenon of the upper arch is inserted into the beam fixing groove of the lower arch to form a cross arch and tenon-and-mortise combination.

The upper side of the upper arch and the lower side of the lower arch are respectively provided with upright cylinders, the central hole of the upright cylinder is used as the upright slot for the bucket, the lower end of the circular upright is inserted into the upright slot of the upper bucket; the upper part of the circular upright is inserted into the lower bucket in the column slot. The arch and the bucket are on the same steel casting, so it is the bucket arch connection. The upper and lower bucket arch connectors are cross-shaped or T-shaped bucket arch parts formed by partial tenon and mortise rotation of the 90-degree arch, so there is no upper and lower distinction, only the profile specification.

Preferably, the lower side of the upper arch and the upper side of the lower arch are respectively provided with mutually intersecting surface grooves and deep grooves, and the column cylinder is on the back of the intersection of the surface grooves and the deep grooves of the upper arch and the lower arch. There are horizontal ribs between the grooves, the surface grooves protrude outwards higher than the plane of the horizontal ribs, the deep grooves concave the plane of the horizontal ribs inward, and the sides of the deep grooves are provided with card grooves for matching with the sides of the surface grooves. There are vertical ribs between the outer side of the column cylinder and the surface groove and the back of the deep groove. The surface groove of the upper arch is embedded in the deep groove of the lower arch, and the surface groove of the lower arch is embedded in the deep groove of the upper arch. The H-beam is inserted into the square slot hole formed by the deep groove and the surface groove.

Preferably, the bottoms of the surface grooves and the deep grooves are provided with several horizontal fixing screw holes for connecting with the main beam or the sub-beam, and the surface grooves and the deep grooves are mutually intersected and arranged vertically.

Preferably, the outer contour of the horizontal bar and the vertical bar is arc-shaped, the middle of the vertical bar is provided with a fixing hole for connecting with the cross column or the inclined column, and the middle part of the horizontal bar is also provided with the cross beam or the inclined beam. Connected fixing holes.

Preferably, the upper arch and the lower arch are respectively an integral structure machined after cast steel.

Beneficial effects of the present invention: the device adopts the bucket arch connector adapted to the circular column as the column beam connector of the assembled building, which replaces the problem of insufficient bending and tensile stress existing in the H-shaped column;

The bucket arch connector of the device connects the standardized H-beam and the circular column instead of welding, and the connection strength meets the seismic requirements; it solves the technical problem that the bending force of the welding seam of the steel structure building is not equal to the bending force of the welding part.

The bucket arch connector of the device can be produced in a standardized manner, and can be manufactured by machining after cast steel, and then produced by heat treatment, hot-dip galvanizing, and hot-dip plastic processes, and the product quality is stable.

Description of drawings

Figure 1 is a schematic diagram of the assembly of a bucket arch connector, a circular column and an H-beam.

Figure 2 is a perspective view of the upper arch.

Figure 3 is a perspective view of the lower arch.

Figure 4 is a top view of the upper arch or the lower arch.

Figure 5 is a sectional view of the upper arch or lower bucket.

In the accompanying drawings: 1. Upper circular column; 2. Sub-beam; 3. Main beam; 4. Lower circular column; 5. Upper arch; 6. Lower arch; 501, Vertical bar; 502, Horizontal bar; 503, Column cylinder; 504, column slot; 505, fixed hole position; 506, horizontal fixing screw hole; 507, surface groove; 508, card groove; 509, deep groove; 510, chamfer.

Detailed ways

The present invention assembles the building bucket arch connector, which is used for the connection of the H-shaped steel as the beam and the circular column as the support column, so as to realize the integral installation of the components of the prefabricated building. The present invention adopts the traditional Chinese four beams and eight columns, bucket arch and tenon and tenon as the main features, and there is no welding spot welding seam at the connecting node position. The connector is fixed, but the bolt-fixed bucket arch connector and the beam and column themselves do not carry the load. The beam mainly bears the weight of the layer, and the column carries the weight above the layer through the bucket arch connector.

As shown in Figure 1, the device structure includes an upper arch and a lower arch, the upper arch and the lower arch are matched up and down, and the joint surface of the upper arch and the lower arch is provided with a square beam fixing slot into which H-shaped steel is inserted.

The upper side of the upper arch and the lower side of the lower arch are respectively provided with a column cylinder, a circular hole slot is opened in the middle of the column cylinder as a column slot, the lower end of the circular column is inserted into the column slot of the upper arch; the upper part of the circular column is inserted into the lower column. in the upright slot of the arch.

As shown in Figures 2 and 3, the lower side of the upper arch and the upper side of the lower arch are respectively provided with intersecting surface grooves and deep grooves, and the column cylinder is on the back of the intersection of the surface grooves and the deep grooves of the upper and lower arches. , a horizontal rib is arranged between the surface groove and the deep groove, the surface groove 507 protrudes outwards higher than the horizontal rib plane, the deep groove 509 is recessed inwards the horizontal rib plane, and the side of the deep groove 509 is used for connecting with the surface groove. 507 The matching slot 508 on the side of the column has vertical ribs 501 between the outer side of the column cylinder and the surface groove and the back of the deep groove; the surface groove of the upper arch is embedded in the deep groove of the lower arch, and the The surface groove is embedded in the deep groove of the upper arch, and the H-beam is inserted into the square beam fixing groove composed of the deep groove and the surface groove.

The bottom of the surface groove and the deep groove are provided with several horizontal fixing screw holes for connecting with the frame or sub-beam, and the surface groove and the deep groove are arranged vertically by crossing each other.

The outer contours of the horizontal rib 502 and the vertical rib 501 are circular arcs. Fixed holes for inclined beam connections.

The upper arch and the lower arch are one-piece structures machined after cast steel respectively. Specifically, the blanks with the machining dimensions are cast from steel first, and then the CNC machine tools are used for fine machining, which is convenient for the size matching of each position during installation.

The installation and processing requirements of this device,

As shown in Figure 1, the girder 3 and sub-beam 2 composed of H-shaped steel are inserted into the square beam fixing groove of the bucket arch connector, and the two are arranged in a "cross" cross, and the horizontal and vertical square beam fixing grooves are arranged up and down. Split H-beams.

The length of the circular column is based on the height of the floor, minus the height of the inner pad of the girder, sub-beam and bucket arch connector is the length of the column; the size and model of the seamless steel pipe used for the circular column is determined according to the weight of the building, and the thickness of the circular column is determined by the weight of the building. The bearing capacity is set by the sum of the strength of the main beam and the sub-beam.

In Figure 1, the main beam and the sub-beam are installed at a 90-degree cross, and can also be installed in different degrees and different slopes according to the design requirements.

On the flange and web surfaces of each beam, the dimensions are positioned according to technical standards, and two rows of plane fixing screw holes for connecting with bucket arch connectors are machined. The number and size of the plane fixing screw holes are specially standardized and standardized according to the height and weight of the overall prefabricated building. The beams and columns connected by the bucket arch connector must be processed by heat treatment to improve the bending strength.

The surface groove and the deep groove are provided with four horizontal ribs 502 whose outer contours are arc-shaped on the same horizontal plane at the intersecting position to form a plane rib to enhance the overall strength.

The bucket arch connector is two pieces up and down with the same structure. It is used to rotate 90 degrees up and down. The surface groove of the upper bucket arch is matched with the deep groove of the lower bucket arch, and the deep groove of the upper bucket arch is matched with the surface groove of the lower bucket arch.

As shown in Fig. 3, the tenon edge protruding from the surface groove of the lower arch connector is inserted into the groove 508 of the riveted edge of the deep groove 509 of the upper bucket arch connector to form a tenon-and-mortise fit. In this way, the four side grooves are matched with each other through the upper and lower two bucket arch connectors to form four square tubular grooves with tenon and tenon joints to clamp the main beam and the auxiliary beam, and then pass the horizontal fixing screws on the horizontal plane of each clamping groove. The hole 506 is used to penetrate the H steel with bolts to fix the upper and lower bucket arch connectors and the beam together.

The bucket arch connector can also be made into a T-shaped connector; it can also be made into a corner-shaped non-right-angle bucket arch connector with less than two slots, and it can also be made into an oblique bucket arch connector with different slopes. For the purpose of body design, as long as the cast steel mold is changed, the design of the installation position change can be realized.

As shown in Figure 5, the bottom of the column cylinder is in a closed shape, which is used to install and support the upper circular column. Since the column bears the weight of the building above the column, the gravity carried by the column is transmitted to the sub-beam, the main beam and the circular column on the lower side through the whole of the bucket arch connector to increase the bearing area capacity of the beam and column.

During installation at the construction site, the upper and lower bucket arch connectors and the two ends of the cylindrical column are pressed together by a movable horizontal hydraulic press to form an interference fit.

After the bucket arch connector shown in Figure 1 is assembled with the upper and lower circular columns, the main beam and the sub-beam, this connection and assembly method is fully assembled on each column of the entire building to form a resultant force. When the earthquake strongly fluctuates or parallel pushes the swing, the column resists the lever force, the beam resists the shear force and the wave force, and is combined with the cross column, the inclined column and the butterfly swing shock absorber. The girders and sub-beams are all through structures, and the floor slabs and wall panels are all through the bamboo rafts to form an overall shear force floor slab and shear force wall panel. Moreover, the weight of the building is only one-seventh of the existing building. Under the action of the butterfly swing shock absorber (Patent Application No. 2018109477866), no matter how strong it is, the earthquake can be shaken like a cradle. That's all, so the bucket arch connector is the technical core of the H-shaped steel building, which determines the earthquake resistance of the H-shaped steel building, and is the core safety guarantee for people's living homes.

This device can be produced on the automated assembly line of the workshop according to product technical standards, quality standards, process standards, and measurement standards. The site is only a building block installation. It has ten times the speed, ten times the accuracy, and one tenth of the existing concrete buildings. The amount of labor, one-seventh of the weight, and the service life of more than 100 years.

The bucket arch connectors in prefabricated buildings are produced in workshops and processed by heat treatment process. Their tensile strength is five times that of ordinary Q235 steel, and the amount of steel used for the main structure is less than 100 kg. The construction cost of a 30-storey rough building is only half that of a reinforced concrete building; if it is converted into a 100-year-life time cost, it is only 20% of that of a concrete building, achieving a substantial reduction in the overall cost of modern buildings.

This assembly building bucket arch connector technology adopts the method of top beam and column, takes H-beam and circular column as the frame, and takes the bucket arch connector as the technical core, which realizes the overall standardized design and manufacture of the assembly building, which is an indispensable key to factory production. technology.

The above-mentioned embodiments and implementation methods are only to describe the preferred embodiments of the present invention, and do not limit the scope of the present invention. On the premise of not departing from the spirit of the technology of the present invention, engineers and technicians in the field can deduce the technical solutions of the present invention. Various modifications and improvements of the invention should fall within the protection scope determined by the claims of the present invention.

Claims (5)

1. A connecting piece for bucket arches of assembly buildings comprises an upper bucket arch (5) and a lower bucket arch (6), wherein the upper bucket arch (5) is matched with the lower bucket arch (6) up and down, a square beam fixing groove into which H-shaped steel is inserted is arranged on the joint surface of the upper bucket arch (5) and the lower bucket arch (6),

the bucket is characterized in that the upper side surface of the upper bucket arch (5) and the lower side surface of the lower bucket arch (6) are respectively provided with a stand column cylinder, the middle part of the stand column cylinder is provided with a groove as a stand column slot, and the lower end of the round stand column is inserted into the stand column slot of the upper bucket arch (5); the upper part of the round upright post is inserted into an upright post slot of the lower bracket (6).

2. The assembly building hopper-arch connecting piece as claimed in claim 1, wherein the lower side surface of the upper hopper arch (5) and the upper side surface of the lower hopper arch (6) are respectively provided with a surface groove and a deep groove which are intersected with each other, the upright post cylinder is arranged on the back surface of the intersection position of the surface groove and the deep groove of the upper hopper arch (5) and the lower hopper arch (6), a horizontal rib is arranged between the surface groove and the deep groove, the surface groove (507) protrudes outwards and is higher than the horizontal rib plane, the deep groove (509) is recessed inwards and is provided with a horizontal rib plane, the side edge of the deep groove (509) is provided with a clamping groove (508) which is matched with the side edge of the surface groove (507), and a vertical rib (501) is arranged; the surface groove of the upper bucket arch (5) is embedded into the deep groove of the lower bucket arch (6), the surface groove of the lower bucket arch (6) is embedded into the deep groove of the upper bucket arch (5), and the H-shaped steel is inserted into the square beam fixing groove formed by the deep groove and the surface groove.

3. The fitting building bracket connector of claim 2, wherein the surface groove and the deep groove are provided at the bottom with a plurality of horizontal fixing screw holes for connecting with the girder or the sub-girder, and the surface groove and the deep groove are arranged to intersect with each other vertically.

4. The assembly building hopper arch connecting piece as claimed in claim 2, wherein the horizontal ribs (502) and the vertical ribs (501) are arc-shaped in outline, the middle parts of the vertical ribs (501) are provided with fixing hole sites (505) for connecting with cross columns or oblique columns, and the middle parts of the horizontal ribs (502) are also provided with fixing hole sites for connecting with cross beams or oblique beams.

5. An assembled building bracket connection according to claim 2, characterized in that the upper bracket (5) and the lower bracket (6) are each cast steel and then machined to form the structure.

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