CN210857253U - Foundation fixing node of permanent box type house - Google Patents

Abstract

This utility model relates to the field of modular building technology and discloses a foundation fixing node for a permanent box-type house. The utility model includes a foundation ring beam and sequentially assembled modular houses located on the foundation ring beam. The modular houses include a steel structural frame and panels surrounding the surface of the steel structural frame. The steel structural frame is a cuboid frame formed by columns and beams. The bottom four corners of the cuboid frame are connected and fixed to embedded parts on the foundation ring beam via first connectors. The first connector includes a horizontal steel plate, a positioning pin perpendicular to the surface of the horizontal steel plate, and connecting bolts. The lower surface of the horizontal steel plate is welded and fixed to the upper surface of the embedded steel plate. The positioning pin is inserted into the column, and the head of the connecting bolt is welded and fixed to the upper surface of the horizontal steel plate. The end of the bolt passes vertically upward through the lower flange plate of the beam and is locked and fixed by a nut. This utility model has good connection firmness, strong stability, convenient and efficient construction, and good positioning accuracy.

Description

Foundation fixing nodes for permanent box houses

technical field

The utility model relates to the technical field of modular construction, in particular to a foundation fixing node of a permanent box-type house.

Background technique

The application of prefabricated buildings is becoming more and more extensive. Among them, box-type buildings are gradually used in permanent multi-storey and even high-rise buildings due to their advantages of high construction quality, fast construction speed, and environmental protection.

In the current box-type houses, the modules are mostly connected by standard matching corner pieces, and the bottom of the module house is usually set with steel legs at the four corners, which are connected and fixed with the ring beam, and the firmness of the connection is guaranteed. It directly affects the stability of the superstructure. However, the force area of the outrigger support is small, and there are problems of poor connection firmness and poor stability. The temporary box house can still meet the requirements of use, but as a permanent building, the outrigger that bears greater pressure, With the extension of the service life, the probability of damage is increasing, and there are certain safety hazards, which also limit the service life of the building to a certain extent.

Utility model content

The utility model provides a foundation fixing node of a permanent box-type house with good connection firmness, strong stability, convenient and efficient construction, and good positioning accuracy.

The technical problem to be solved is: the connection between the existing box-type house and the foundation is mostly suitable for temporary buildings, and the connection firmness is poor, the stability is poor, and the service life is short.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions:

The foundation fixing node of the permanent box-type house of the utility model comprises a foundation ring beam and a sequentially spliced modular house located on the foundation ring beam. The skeleton is a cuboid frame enclosed by columns and beams, the columns are square steel pipes, the beams are I-beam or H-beam, and the end faces of the beams are welded and fixed to the side walls of the columns;

Embedded parts are arranged in the foundation ring beam, and the embedded parts include a pre-embedded steel plate located on the top surface of the foundation ring beam, and shear keys and anchor bars arranged in the foundation ring beam;

The end corners around the bottom of the cuboid frame are connected and fixed with the embedded parts on the foundation ring beam through first connectors, the first connectors include horizontal steel plates, locating pins and connecting bolts arranged perpendicular to the surface of the horizontal steel plates; The surface is welded and fixed with the upper surface of the embedded steel plate, the locating pin is coaxially arranged with the column, inserted in the column, the head of the connecting bolt is welded and fixed with the upper surface of the horizontal steel plate, and the end of the rod part passes through the beam vertically upward. After the lower flange plate is locked and fixed by nuts;

The beam of the cuboid frame is connected and fixed with the basic ring beam through a second connecting piece, the second connecting piece is arranged at intervals along the length direction of the beam, and the second connecting piece includes an L-shaped corner code, and the vertical limb plate of the L-shaped corner code is welded and fixed with the beam , the horizontal limb plate is connected and fixed with the foundation ring beam through expansion bolts.

The foundation fixing node of the permanent box house of the utility model, further, the embedded steel plate is a rectangular steel plate, the minimum distance between the edge of the embedded steel plate and the edge of the adjacent foundation ring beam is not less than 200mm, and the length of the embedded steel plate is not less than 200mm. The horizontal central axis of the direction is in the same vertical plane as the axis of the foundation ring beam.

The foundation fixing node of the permanent box-type house of the utility model, further, the shear key is a cross-shaped shear key, which is composed of two rectangular steel plates that are perpendicular to each other, one end is welded and fixed with the lower surface of the embedded steel plate, and the other end is welded and fixed. It extends vertically downward into the foundation ring beam, and the vertical central axis of the shear key overlaps with the geometric center of the embedded steel plate.

The foundation fixing node of the permanent box house of the utility model, further, the anchoring bars are arranged perpendicular to the board surface of the pre-embedded steel plate, and are evenly arranged in the board surface of the pre-embedded steel plate, and the top extends upward into the pre-embedded steel plate. The bottom end of the anchoring bar is bent vertically and extended horizontally to form an anchoring hook.

The foundation fixing node of the permanent box-type house of the present utility model, further, the length of the anchoring bar extending into the foundation ring beam is not less than 30 times the nominal diameter of the anchoring bar, the length of the anchoring hook is not less than 120mm, and the adjacent anchoring bar is not less than 120mm. The distance between them is not more than 300mm.

For the foundation fixing node of the permanent box-type house of the present invention, further, a pair of pull bolts are arranged between two adjacent vertical columns, and the pair of pull bolts horizontally pass through the adjacent columns and the internal positioning pins and then are locked by nuts. fixed.

The foundation fixing node of the permanent box house of the present utility model, further, the top and bottom of the vertical limb plate of the L-shaped corner yard are respectively welded and fixed with the end faces of the upper flange plate and the lower flange plate of the beam, and the vertical limbs are welded and fixed respectively. A pair of parallel connection plates are also arranged between the plate and the web of the beam. The plate surface of the connection plate is perpendicular to the plate surface of the vertical limb plate. The upper surface of the flange plate and the vertical limb plate are welded and fixed.

The foundation fixing node of the permanent box-type house of the utility model, further, a positioning cylinder is arranged between the two connecting plates, the positioning cylinder is a square steel pipe, and the central axis is perpendicular to the plate surface of the vertical limb plate, and is arranged with the vertical limb plate. The geometric centers of the vertical limb plates are overlapped and arranged, one end of the positioning cylinder is welded and fixed with the plate surface of the vertical limb plates, and the other end extends horizontally between the two connecting plates.

The foundation fixing node of the permanent box house of the utility model, further, a backing plate is arranged between the horizontal limb plate of the L-shaped corner code and the foundation ring beam, and the backing plate is a rectangular steel plate, and the edges on both sides are connected to the foundation ring beam. The edges of the two sides are aligned, and the thickness matches the height of the gap between the beam and the foundation ring beam.

The foundation fixing node of the permanent box-type house of the utility model, further, the second connecting piece further comprises stiffening plates symmetrically arranged on both sides of the L-shaped corner yard.

Compared with the prior art, the foundation fixing node of the permanent box-type house of the utility model has the following beneficial effects:

In the utility model, the steel structure skeleton of the modular house is directly seated on the foundation ring beam without a certain height of support feet. The middle part of the beam is connected to the foundation ring beam at intervals, realizing the direct connection between the steel structure skeleton and the ring beam foundation, the structure is more stable, the connection rigidity is stronger, and the service life of the modular house is greatly improved.

The first connecting piece of the utility model is connected with the pre-embedded piece, and the ground-floor modular house is precisely positioned through the positioning pins and connecting bolts on the first connecting piece. The connecting bolts are lowered and locked by nuts to complete the positioning and connection synchronously, which greatly reduces the difficulty of positioning during the installation process, improves the positioning accuracy, and avoids the deviation of the entire box from the base ring due to deviation of one point. Beam settings.

The foundation fixing nodes of the permanent box-type house of the present invention will be further described below with reference to the accompanying drawings.

Description of drawings

Fig. 1 is the structural representation of the permanent box-type house of the present utility model;

Fig. 2 is the structural representation of ring beam;

3 is a schematic cross-sectional view of the connection node between the embedded part and the first connector;

Fig. 4 is the structural schematic diagram of the embedded part;

5 is a schematic structural diagram of a first connector;

6 is a schematic diagram of the installation structure at the connection node between the embedded part and the first connector;

7 is a schematic structural diagram of a second connector;

FIG. 8 is a side view at the connection node of the second connector.

Reference number:

1- Foundation ring beam; 2- Embedded parts; 21- Embedded steel plates; 22- Shear keys; 23- Anchor bars; 24- Anchor hooks; 3- The first connecting piece; 31- Horizontal steel plates; ;33-connecting bolts;4-tension bolts;5-second connecting piece;51-L-shaped angle code;52-stiffening plate;53-positioning cylinder;54-expansion bolts;6-connecting plate;7-backing plate ; 8-column; 9-beam.

Detailed ways

As shown in Fig. 1 and Fig. 2, the foundation fixing node of the permanent box-type house of the present utility model includes a foundation ring beam 1, a modular house which is located on the foundation ring beam 1 and spliced in sequence, and the module house is connected to the foundation ring through a connector Beam 1 is connected and fixed.

As shown in FIG. 3 , the foundation ring beam 1 can be cast-in-place or factory prefabricated. The foundation ring beam 1 is provided with an embedded part 2 , as shown in FIG. The pre-embedded steel plate 21, the shear key 22 and the anchoring bar 23 arranged in the foundation ring beam 1; The minimum distance between them is not less than 200mm, and the horizontal central axis of the embedded steel plate 21 in the longitudinal direction and the axis of the foundation ring beam 1 are located in the same vertical plane; the shear key 22 is a cross-shaped shear key, consisting of two perpendicular pieces. It is composed of a rectangular steel plate with a thickness of not less than 16mm, one end is welded and fixed to the lower surface of the embedded steel plate 21, and the other end extends vertically downward into the foundation ring beam 1. The vertical axis of the shear key 22 and the geometry of the embedded steel plate 21 The center is overlapped and the height of the shear key 22 is not less than 200mm; the anchoring bars 23 are arranged perpendicular to the surface of the embedded steel plate 21, and are evenly arranged in the surface of the embedded steel plate 21, and the top extends upward into the embedded steel plate 21 The bottom end extends downward into the foundation ring beam 1, and the length extending into the foundation ring beam 1 is not less than 30 times the nominal diameter of the anchoring rib 23. The bottom end of the anchoring rib 23 is bent vertically and extends horizontally to form The anchoring hook 24, the length of the anchoring hook 24 is not less than 120mm, and the distance between the adjacent anchoring bars 23 is not more than 300mm.

The modular house includes a steel structure skeleton and panels arranged around the surface of the steel structure skeleton. The steel structure skeleton is a cuboid frame enclosed by a column 8 and a beam 9, the column 8 is a square steel pipe, and the beam 9 is I-beam or H Section steel, the end face of the beam 9 and the side wall of the column 8 are welded and fixed.

The corners around the bottom of the cuboid frame are connected and fixed with the embedded part 2 on the foundation ring beam 1 through the first connector 3. As shown in Figures 5 and 6, the first connector 3 includes a horizontal steel plate 31, which is perpendicular to the horizontal The positioning pins 32 and the connecting bolts 33 are arranged on the surface of the steel plate 31; the horizontal steel plate 31 is a rectangular steel plate with a thickness of not less than 6 mm, the lower surface is welded and fixed to the upper surface of the embedded steel plate 21, and the bottom end of the positioning pin 32 is connected to the upper surface of the horizontal steel plate 31. It is welded and fixed, the top end extends upward into the column 8, and the positioning pin 32 is coaxially arranged with the column 8, which is convenient for the hoisting and positioning of the modular house, which greatly reduces the construction difficulty and improves the positioning accuracy; the height of the positioning pin 32 is not less than 50mm. A pair of pull bolts 4 are arranged between the two adjacent columns 8, and the pair of pull bolts 4 pass through the adjacent columns 8 and the internal positioning pins 32 horizontally and then are locked and fixed by nuts, so as to realize the connection between the adjacent modular houses, which can effectively The integrity between the modular houses is enhanced, and the part of the bending moment at the connection node is assumed, and the tension bolt 4 passes through the column 8 and the internal positioning pin 32 at the same time, which greatly improves the connection rigidity; the head of the connection bolt 33 is connected to the horizontal steel plate. The upper surface of 31 is welded and fixed, and the end of the rod part passes through the lower flange plate of the beam 9 vertically and is locked and fixed by nuts, which not only realizes the fixed connection between the beam 9 and the basic ring beam 1, but also undertakes the partial shearing at the connection node. It also plays a role in positioning, which is convenient for hoisting and positioning, simplifies the process of laying out and calibration, reduces the difficulty of construction, and improves the construction efficiency.

The beam 9 of the cuboid frame is connected and fixed with the basic ring beam 1 through the second connecting piece 5. As shown in FIG. More than 2m, the second connecting piece 5 includes an L-shaped corner 51 and stiffening plates 52 symmetrically arranged on both sides of the L-shaped corner 51. The top and bottom of the vertical limbs of the L-shaped corner 51 are respectively connected with the upper wing of the beam 9. The end faces of the flange plate and the lower flange plate are welded and fixed. As shown in Figure 8, a pair of connecting plates 6 parallel to each other are also arranged between the vertical limb plate and the web plate of the beam 9, and the plate surface of the connecting plate 6 is perpendicular to the vertical limb plate. The four peripheral edges are respectively welded and fixed with the lower surface of the upper flange plate, the side surface of the web, the upper surface of the upper flange and the surface of the vertical limb plate of the beam 9, and a positioning cylinder is arranged between the two connecting plates 6. 53. The positioning cylinder 53 is a square steel pipe, the central axis is set perpendicular to the plate surface of the vertical limb plate, and is arranged to overlap with the geometric center of the vertical limb plate. One end of the positioning cylinder 53 is welded and fixed with the plate surface of the vertical limb plate, and the other One end extends horizontally between the two connecting plates 6 . A backing plate 7 is arranged between the horizontal limb plate of the L-shaped corner 51 and the foundation ring beam 1. The backing plate 7 is a rectangular steel plate, the edges on both sides are aligned with the two sides of the foundation ring beam 1, and the thickness is the same as that of the cross beam 9 and the foundation ring beam 1. The gaps between the ring beams 1 are matched in height; the horizontal leg plate is connected and fixed with the base ring beam 1 through expansion bolts 54 , and the outer side of the horizontal leg plate does not exceed the side elevation of the foundation ring beam 1 .

Since the connecting plate 6 has already been set on the beam 9 during prefabrication of the modular house, when it is installed and fixed on site, it is only necessary to insert the positioning cylinder 53 on the second connecting piece 5 between the two connecting plates 6, and then perform welding to complete the first step. The setting of the second connecting piece 5 saves the process of measuring and positioning, greatly reduces the on-site workload, and improves the construction efficiency.

The basic ring beam 1 is set wider than the width of the cross beam 9, and the installation width of the second connector 5 is left on the outside, which not only facilitates the installation of the second connector 5, improves the connection rigidity between the modular house and the basic ring beam 1, but also reduces the The pressure of the small module house on the edge of the foundation ring beam 1 can avoid the damage of the foundation ring beam 1 which is easy to occur after the service life is too long, and can effectively improve the stability and service life of the module house setting.

The above-mentioned embodiments 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 design spirit of the present invention, those of ordinary skill in the art can understand the technical solutions of the present invention. Various modifications and improvements made shall fall within the protection scope determined by the claims of the present utility model.

Claims (10)

1. Basic fixed node in box house of permanent, its characterized in that: the modular house comprises a foundation ring beam (1) and a modular house sequentially spliced on the foundation ring beam (1), wherein the modular house comprises a steel structure framework and a panel arranged on the surface of the steel structure framework in an enclosing manner, the steel structure framework is a cuboid frame formed by enclosing upright columns (8) and cross beams (9), the upright columns (8) are square steel tubes, the cross beams (9) are I-shaped steel or H-shaped steel, and the end surfaces of the cross beams (9) are welded and fixed with the side walls of the upright columns (8);

an embedded part (2) is arranged in the foundation ring beam (1), the embedded part (2) comprises an embedded steel plate (21) positioned on the top surface of the foundation ring beam (1), a shear key (22) and an anchoring rib (23) which are arranged in the foundation ring beam (1);

the bottom peripheral end corners of the rectangular frame are fixedly connected with embedded parts (2) on a foundation ring beam (1) through first connecting parts (3), each first connecting part (3) comprises a horizontal steel plate (31), and a positioning pin (32) and a connecting bolt (33) which are perpendicular to the plate surface of the horizontal steel plate (31); the lower surface of the horizontal steel plate (31) is fixedly welded with the upper surface of the embedded steel plate (21), the positioning pin (32) and the upright post (8) are coaxially arranged and are inserted into the upright post (8), the head of the connecting bolt (33) is fixedly welded with the upper surface of the horizontal steel plate (31), and the end of the rod part vertically penetrates through the lower flange plate of the cross beam (9) upwards and then is locked and fixed through a nut;

crossbeam (9) of cuboid frame are connected fixedly through second connecting piece (5) and basic circle roof beam (1), and second connecting piece (5) set up along crossbeam (9) length direction interval, and second connecting piece (5) include L shape angle sign indicating number (51), and the vertical limb board and crossbeam (9) welded fastening of L shape angle sign indicating number (51), and horizontal limb board passes through expansion bolts (54) and is connected fixedly with basic circle roof beam (1).

2. The foundation attachment node of a permanent box house according to claim 1 wherein: the embedded steel plate (21) is a rectangular steel plate, the minimum distance between the edge of the embedded steel plate (21) and the edge of the adjacent foundation ring beam (1) is not less than 200mm, and the horizontal central axis of the embedded steel plate (21) in the length direction and the axis of the foundation ring beam (1) are located in the same vertical plane.

3. The foundation attachment node of a permanent box house according to claim 1 wherein: shear key (22) are cross shear key, constitute by two mutually perpendicular's rectangle steel sheets, one end and pre-buried steel sheet (21) lower surface welded fastening, in the other end vertically extends foundation ring roof beam (1) downwards, the vertical axis of shear key (22) overlaps with the geometric center of pre-buried steel sheet (21) and sets up.

4. The foundation attachment node of a permanent box house according to claim 1 wherein: the face setting of anchor muscle (23) perpendicular to pre-buried steel sheet (21) to evenly arrange in the face of pre-buried steel sheet (21), the top upwards stretches into in pre-buried steel sheet (21) and welded fastening, and in the base girth beam (1) was stretched into downwards to the bottom, the bottom of anchor muscle (23) was buckled perpendicularly and horizontal extension formed anchor hook (24).

5. The foundation attachment node of a permanent box house according to claim 4 wherein: the length of the anchoring ribs (23) extending into the foundation ring beam (1) is not less than 30 times of the nominal diameter of the anchoring ribs (23), the length of the anchoring hooks (24) is not less than 120mm, and the distance between adjacent anchoring ribs (23) is not more than 300 mm.

6. The foundation attachment node of a permanent box house according to claim 1 wherein: and a split bolt (4) is arranged between every two adjacent upright columns (8), and the split bolt (4) horizontally penetrates through the adjacent upright columns (8) and the positioning pin (32) inside and is locked and fixed through a nut.

7. The foundation attachment node of a permanent box house according to claim 1 wherein: the vertical limb plate top and the bottom of L shape angle sign indicating number (51) respectively with the top flange board and the bottom flange board terminal surface welded fastening of crossbeam (9), still be provided with a pair of connecting plate (6) that are parallel to each other between vertical limb board and crossbeam (9) web, the face setting of connecting plate (6) face perpendicular to vertical limb board, all around the border respectively with the top flange board lower surface of crossbeam (9), web side, top flange board upper surface and vertical limb board face welded fastening.

8. The foundation attachment node of a permanent box house according to claim 7 wherein: two be provided with a location section of thick bamboo (53) between connecting plate (6), a location section of thick bamboo (53) are square steel pipe, and the face setting of the vertical limb board of axis perpendicular to overlap the setting with the geometric center of vertical limb board, a location section of thick bamboo (53) one end and the face welded fastening of vertical limb board, the other end level extends between two connecting plates (6).

9. The foundation attachment node of a permanent box house according to claim 1 wherein: be provided with backing plate (7) between the horizontal limb board of L shape angle sign indicating number (51) and basic circle roof beam (1), backing plate (7) are the rectangle steel sheet, and both sides border aligns the setting with the both sides border of basic circle roof beam (1), and thickness highly cooperatees with the gap between crossbeam (9) and the basic circle roof beam (1).

10. The foundation attachment node of a permanent box house according to claim 1 wherein: the second connecting piece (5) further comprises stiffening plates (52) symmetrically arranged on two sides of the L-shaped corner connector (51).

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