CN216360884U - Building floor corner outer frame support system that encorbelments - Google Patents

Abstract

The utility model discloses a building floor corner overhanging outer frame supporting system which comprises a column side platform beam, a corner platform beam, a platform beam seat plate, a countersunk anchor bolt, a connecting plate, a supporting rod sleeve, an adjustable supporting rod sleeve, a pin, a supporting rod base plate, a vertical rod base, a vertical rod, a short transverse rod, a corner lapping beam, a platform pedal, a corner arc transverse rod and a long transverse rod. The overhanging outer scaffold replaces the traditional floor type scaffold, so that the cost is reduced, and the safety factor is increased; the triangular support system with the adjustable hypotenuse is adopted at the corner of the outer frame, the I-shaped steel beam does not need to go deep into a building floor to anchor, the bearing is carried through the triangular support frame, the problem that the outer frame is difficult to arrange at the corner is solved, and the application range is wide.

Description

Building floor corner outer frame support system that encorbelments

Technical Field

The utility model relates to the technical field of building construction, in particular to a building floor corner overhanging outer frame supporting system.

Background

With the development of the building industry in China, the building height is higher and higher, the floors are more and more, particularly, commercial residential buildings, and high-rise and super high-rise buildings are in a common form due to the reduction of the building land and the increase of the cost of investment and development. In the building construction, according to the requirements of construction procedures and engineering operation safety, an external frame is required to be built to protect the operation safety and the construction of external enclosure in the construction process of the building. In the construction of high-rise buildings, the building height is high, and if a floor type external scaffold is erected, the problems of high construction cost, high requirement on the stability of the external scaffold, potential safety hazards and the like can be caused. The overhanging outer scaffold takes place by delivery, adopts I-steel overhanging anchoring to overhang outwards on the floor as the foot point of the outer scaffold, but when meeting the external corner when setting up, if special treatment is not adopted, there are numerous drawbacks. To summarize the prior art, the following problems exist:

1. the floor type external scaffold has high cost, and the used materials and labor are increased as the building is higher;

2. the stability coefficient of the floor type external scaffold is continuously reduced along with the continuous increase of the height of a building, so that potential safety hazards exist;

the conventional cantilever outrigger has the following problems:

1. at the external corner of the floor, the large-section column blocks the arrangement of the I-shaped steel beam, so that the supporting points of the external frame at the external corner are insufficient, and the stress requirement of the base of the external frame cannot be met;

2. in the external corner, if the pillar is a small-section pillar, I-shaped steel beam supports are arranged on two sides of the pillar, the distance meets the requirement, but the I-shaped steel beams need a certain anchoring length, so that the I-shaped steel beams can be in cross collision in the floor and are not well processed;

3. the horizontal cross bars of the external frame at the external corner are crossed, so that the external frame needs to be staggered, the external frame is inconvenient to erect, and meanwhile, the space of the external frame is small, so that long objects cannot pass through the external frame;

4. if the I-shaped steel beam supported by the outer frame passes through the interior of the column, the arrangement of the ribs of the column is displaced, the bearing capacity of the column is affected, meanwhile, the column is not easy to disassemble, and if the I-shaped steel beam is cut off after construction is finished, material and labor are wasted;

some methods use a triangular fixed support frame, the length of the bevel edge of the triangular fixed support frame is fixed and cannot be adjusted, and the triangular fixed support frame is difficult to fix when meeting a concave-convex vertical surface or a staggered vertical surface.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one problem, the utility model provides a building floor corner overhanging outer frame supporting system.

The utility model can be realized by the following technical scheme:

the utility model provides a building floor corner overhanging outer frame supporting system which comprises a column side platform beam, a corner platform beam, a platform beam seat plate, a countersunk anchor bolt, a connecting plate, a supporting rod sleeve, an adjustable supporting rod sleeve, a pin, a supporting rod seat plate, a vertical rod base, a vertical rod, a short transverse rod, a corner lapping beam, a platform pedal, a corner arc transverse rod and a long transverse rod, wherein the column side platform beam is arranged on the column side; the column side platform beam is an I-shaped steel beam;

one end of the column side platform beam is anchored in the floor panel through embedded steel bars and steel bar elbows, and the other end of the column side platform beam extends towards the outer side of the floor panel to form an overhanging part;

the column side platform beams are arranged at intervals along the horizontal extending direction of the floor slab to form a bearing structure;

one end of the corner platform beam is welded with the platform beam seat plate, and the other end of the corner platform beam extends towards the outer side of the pillar to form an overhanging part;

the platform beam seat plate is reserved with bolt holes and is connected with the platform beam seat plate through countersunk anchor bolts embedded in the pillars by bolts;

the two corner platform beams are respectively and vertically connected to different outer side surfaces of the column;

a plurality of upright rod bases are vertically arranged, and the lower ends of the upright rod bases are welded at two ends of the platform beam or two ends of the overhanging part of the platform beam;

the supporting rod sleeve and the adjustable supporting rod sleeve are provided with a row of holes in a straight line along the longitudinal direction at the end parts, the outer diameter of the supporting rod sleeve is smaller than the inner diameter of the adjustable supporting rod sleeve, the supporting rod sleeve is inserted into the adjustable supporting rod sleeve, the holes are aligned, and the length is fixed through pins;

the outer frame upright stanchion is vertically inserted to the outer side of the upright stanchion base from top to bottom for vertical fixed installation;

the corner arc-shaped cross rod and the long cross rod are connected with adjacent outer frame upright rods along the horizontal direction;

two ends of the corner lapping beam are lapped on the overhanging part of the corner platform beam and are welded and fixed through electric welding, and the height of the corner lapping beam is equal to the height of the upper skin of the short cross bar;

the platform pedal is arranged above the corner bridge and the short cross rod and supported by the corner bridge and the short cross rod.

Further, the openings are equally spaced.

Further, building floor corner outrigger support system still includes the fastener, pole setting, short horizontal pole, corner arc horizontal pole and long horizontal pole pass through the fastener to be connected, corner arc horizontal pole passes through fastener and pole setting overlap joint outside the corner.

Further, the building floor corner overhanging outer frame supporting system further comprises a cross rod connecting sleeve, and the cross rod connecting sleeve is connected with the long cross rod and the corner arc-shaped cross rod.

Further, the platform pedal is a glued wood board or a bamboo foot board.

Furthermore, the upright rod base is a small short pipe with two ends with different diameters, the diameter of the upper part is small, and the diameter of the lower part is large; the diameter of the lower part of the upright stanchion base is equal to the inner diameter of the upright stanchion of the outer frame so as to limit the looseness and the displacement of the lower end of the upright stanchion.

Further, the platform footboard includes the segmental arc that is used for setting up in the corner and connects the straightway at segmental arc both ends.

Furthermore, the building floor corner cantilever outer frame support system further comprises embedded steel bars and steel bar elbows, and one end of the column side platform beam is anchored in the floor panel through the embedded steel bars and the steel bar elbows.

The utility model provides a construction method of a building floor corner cantilever outer frame supporting system.

Further, the construction method of the building floor corner overhanging outer frame supporting system comprises the following steps:

a. installation preparation:

before the floor slab and the column are poured, the distance and the length of the platform beams are calculated, the anchoring points of the platform beams on the side of the positioning columns are pre-embedded with steel bars, the positions of the countersunk anchor bolts on the column surfaces are positioned, the countersunk anchor bolts are pre-embedded and fixed, the concrete pouring of the floor slab and the column is carried out, and if the floor slab is prefabricated, holes can be drilled for planting the steel bars;

when the strength of concrete meets the requirement, preparing materials for entering a field, cleaning the floor and the cylindrical surface, mechanically positioning personnel, and requiring special professionals to operate;

b. installing a column side platform beam:

the cantilever steel beams adopt No. 18I-shaped steel beams, the distance is 1.5m, the cantilever part is 1.3m, and the length of the cantilever part normally extending into the building main body is 1.7 m; the length of the I-shaped steel beam closest to the two sides of the column is 1.5m away from the I-shaped steel beam on the column, the length of the I-shaped steel beam extending into the building main body is determined according to the situation, if the length from the junction point to the edge of the floor is less than 1.7m, the I-shaped steel beam is anchored according to the actual length, and if the length from the junction point to the edge of the floor is more than 1.7m, the I-shaped steel beam extends into the building main body according to 1.7 m;

the I-shaped steel beam is cantilevered, one section of the building floor is reinforced twice by using embedded steel bars and steel bar elbows, and when the length is less than 1.7m, the I-shaped steel beam is reinforced three times;

c. corner platform roof beam fixed mounting and bracing installation:

according to the working procedure a, a countersunk anchor bolt is pre-embedded before the column is poured, and the countersunk anchor bolt is pre-embedded on the width central line of the column; the top of the platform beam seat plate is embedded with 6 bolts in double rows, the bottom of the platform beam seat plate is embedded with 2 bolts in double rows, and the waist of the base is additionally provided with 2 embedded bolts if necessary; 1 bolt is pre-embedded at each of four corners of a base plate of the support rod;

during installation, the corner platform beam and the platform beam seat plate are in full-welding connection and are fixed on the structural column through bolts, and nuts are screwed tightly to prevent looseness; the support rod sleeve is connected with the connecting plate through a bolt, and a nut is screwed tightly; then installing a supporting rod base plate and connecting the supporting rod base plate with the column by using a bolt; next, the support rod sleeve is connected with the adjustable support rod sleeve, the orifices are aligned, the length is adjusted, when the lower end of the adjustable support rod sleeve falls into the middle position of the support rod base plate, a pin is inserted, and the lower end of the adjustable support rod sleeve is welded with the support rod base plate;

d. welding the small short pipe:

welding small short pipe upright bases on the overhanging section of the overhanging steel beam and the corner platform beam to serve as fulcrums of the uprights, wherein the distance between an outer fulcrum and the outer end of the I-shaped steel beam is 100mm, the distance between two fulcrums is 0.8m, and the distance between an inner fulcrum and a wall is 0.3 m;

e. and (3) mounting a corner lapping beam:

according to the actual length, two ends of the corner lapping beam are lapped on the platform beam base plate and fixed by spot welding;

f. upright rod fixed mounting and cross rod mounting

Setting up according to a conventional external frame setting method, wherein the maximum length of the upright rods, the large cross rods and the inclined rods is 6.5m, and the length of the small cross rods is 1.5 m; the distance between the vertical rods is 0.8m, the longitudinal distance is 1.5m, the step distance between the large cross rods is 1.8m, the small cross rods are arranged close to the vertical rods and are lapped on the large cross rods, the distance between the small cross rods and the large cross rods is 0.75m, and all the rod pieces are fastened by fasteners.

The utility model has the following technical effects:

1. the overhanging outer scaffold replaces the traditional floor type scaffold, so that the cost is reduced, and the safety factor is increased;

2. the triangular support system with the adjustable bevel edge is adopted at the corner of the outer frame, the I-shaped steel beam does not need to go deep into the building floor for anchoring, and the bearing is carried by the triangular support frame, so that the difficulty in arrangement of the outer frame at the corner is solved, and the application range is wide;

3. the triangular support frame is fixed in shape and high in stability.

4. The triangular support frame has adjustable bevel edge, is suitable for erecting the outer frame platform base when the vertical surface is concave and convex or the plane is staggered, and is flexible to arrange;

5. the two important end points of the triangular support frame are connected to the main structure of the building through bolts, so that the triangular support frame is convenient to disassemble and high in turnover rate;

6. corner lapping beams are arranged on the two platform beams at the corners to support the scaffold boards, so that the bearing capacity is improved, and the operation safety coefficient of the corners is increased;

7. the long transverse rods outside the corners are made into arc-shaped protection, so that the width of the channel is increased, and personnel and materials can pass through the channel conveniently;

8. the cross rod connecting sleeve for the corner arc-shaped cross rod solves the problem that cross rods are staggered and not beneficial to overlapping.

Drawings

FIG. 1: the utility model provides a top view of a building floor corner overhanging outer frame supporting system;

FIG. 2: FIG. 1 is a sectional view taken along line A-A;

FIG. 3: FIG. 2 is a cross-sectional view taken along line C-C;

FIG. 4: FIG. 1 is a sectional view taken along line B-B;

FIG. 5: the utility model provides an explosion diagram of a building floor corner overhanging outer frame supporting system;

the reference numbers in the drawings include:

1-column side platform beam (used for connecting with floor slab, main bearing function); 2-embedded steel bars (used for fixing connecting pieces connected with the floor slab, generally steel bars); 3-steel bar elbow (used for connecting and anchoring the column side platform beam to the floor slab connecting piece); 4-corner platform beam (2 pieces are generally needed); 5-platform beam seat board (column is connected with corner platform beam), 6-countersunk anchor bolt (platform beam is connected with column connecting bolt), 7-connecting bolt (corner platform beam is connected with support); 8, connecting plates (for connecting the corner platform beam with the support); 9- -supporting rod sleeve (supporting corner platform beam); 10-adjustable supporting rod sleeve (supporting corner platform beam, adjustable length); 11- -pin (for connecting and fixing the support rod); 12- -support bar base plate (for connecting the post and the support bar); 13- -upright stanchion base (for the fixed connection of scaffold upright stanchion and platform beam); 14-uprights (scaffold uprights); 15-fasteners (for connecting and fixing the scaffold); 16- -short ledgers (scaffold ledgers); 17-corner bridge (for supporting corner platform footplate); 18- -platform deck (plywood or bamboo baseboard); 19-Cross bar connecting sleeve (for scaffold long cross bar connection)

Use); 20-corner arc cross bar (steel pipe); 21-long ledgers (scaffold ledgers).

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the following detailed description of the present invention is provided with reference to the accompanying drawings.

The utility model provides an overhanging outer scaffold, which replaces the traditional floor type scaffold, reduces the cost and increases the safety factor; the triangular support system with the adjustable bevel edge is adopted at the corner of the outer frame, the I-shaped steel beam does not need to go deep into the building floor for anchoring, and the bearing is carried by the triangular support frame, so that the difficulty in arrangement of the outer frame at the corner is solved, and the application range is wide; the triangular support frame is fixed in shape and high in stability. The triangular support frame has adjustable bevel edge, is suitable for erecting the outer frame platform base when the vertical surface is concave and convex or the plane is staggered, and is flexible to arrange; the triangle-shaped support frame, two important endpoints use bolted connection in building major structure, convenient to detach, turnover rate is high simultaneously.

As shown in fig. 1-5, the utility model provides a building floor corner overhanging outer frame supporting system, which comprises a column side platform beam 1, a corner platform beam 4, a platform beam seat plate 5, a countersunk anchor bolt 6, a connecting bolt 7, a connecting plate 8, a supporting rod sleeve 9, an adjustable supporting rod sleeve 10, a pin 11, a supporting rod base plate 12, a vertical rod base 13, a vertical rod 14, a short transverse rod 16, a corner lapping beam 17, a platform pedal 18, a corner arc-shaped transverse rod 20 and a long transverse rod 21; one end of the column side platform beam 1 is anchored in the floor panel through embedded steel bars 2 and steel bar elbows 3, and the other end of the column side platform beam extends towards the outer side of the floor panel to form an overhanging part; the column side platform beams 1 are multiple, and the column side platform beams 1 are arranged at intervals along the horizontal extension direction of the floor slab to form a bearing structure; one end of the corner platform beam 4 is connected with the platform beam seat plate 5 in a welding mode, and the other end of the corner platform beam extends towards the outer side of the column to form an overhanging part; a bolt hole is reserved in the platform beam seat plate 5, and the platform beam seat plate 5 is connected with a countersunk anchor bolt 6 pre-embedded in a column through a bolt; the two corner platform beams 4 are respectively and vertically connected to different outer side surfaces of the column; a plurality of upright rod bases 13 are vertically arranged, and the lower ends of the upright rod bases are welded at two ends of the platform beam 4 or two ends of the overhanging part of the platform beam 1; the end parts of the support rod sleeve 9 and the adjustable support rod sleeve 10 are provided with a row of holes along the longitudinal straight line, the outer diameter of the support rod sleeve 9 is smaller than the inner diameter of the adjustable support rod sleeve 10, the support rod sleeve 9 is inserted into the adjustable support rod sleeve 10, the hole openings are aligned, and the length is fixed through a pin 11; the outer frame upright stanchion 14 is vertically inserted to the outer side of the upright stanchion base 13 from top to bottom for vertical fixed installation; the corner arc cross bar 20 and the long cross bar 21 are connected with the adjacent outer frame upright stanchions 14 along the horizontal direction; two ends of the corner lapping beam 17 are lapped on the overhanging part of the corner platform beam 4 and are welded and fixed by electric welding, and the height of the corner lapping beam is equal to the height of the upper skin of the short cross bar 16; the deck foot plate 18 is disposed above and supported by the corner bridge 17 and the short cross bar 16. The openings are equally spaced. The building floor corner cantilever outer frame support system further comprises a fastener 15, the upright rod 14, the short cross rod 16, the corner arc cross rod 20 and the long cross rod 21 are connected through the fastener 15, and the corner arc cross rod 20 is lapped outside a corner through the fastener 15 and the upright rod 14. The building floor corner overhanging outer frame supporting system further comprises a cross rod connecting sleeve 19, and the cross rod connecting sleeve 19 is connected with a long cross rod 21 and a corner arc-shaped cross rod 20. The platform deck 18 is a plywood or bamboo board. The upright rod base 13 is a small short pipe with two ends with different diameters, the upper part is small in diameter, and the lower part is large in diameter; the diameter of the lower part of the upright base 13 is equal to the inner diameter of the outer frame upright 14 so as to limit the loosening and displacement of the lower end of the upright 14. The platform deck 18 includes an arc-shaped section for being disposed at a corner and straight sections connected to both ends of the arc-shaped section. The building floor corner cantilever outer frame support system further comprises embedded steel bars 2 and steel bar elbows 3, and one end of the column side platform beam 1 is anchored in the floor panel through the embedded steel bars 2 and the steel bar elbows 3.

The utility model also provides a construction method of the building floor corner overhanging outer frame supporting system. The construction method of the building floor corner overhanging outer frame supporting system comprises the following steps:

a. installation preparation:

before the floor slab and the column are poured, the distance and the length of the platform beams are calculated, the anchoring points of the platform beams on the side of the positioning columns are pre-embedded with steel bars, the positions of the countersunk anchor bolts on the column surfaces are positioned, the countersunk anchor bolts are pre-embedded and fixed, the concrete pouring of the floor slab and the column is carried out, and if the floor slab is prefabricated, holes can be drilled for planting the steel bars;

when the strength of concrete meets the requirement, preparing materials for entering a field, cleaning the floor and the cylindrical surface, mechanically positioning personnel, and requiring special professionals to operate;

b. installing a column side platform beam:

the column side platform beam 1 adopts 18-number I-shaped steel beams, the distance is 1.5m, the overhanging part is 1.3m, and the length of the overhanging part normally extending into the building main body is 1.7 m; the length of the I-shaped steel beam closest to the two sides of the column is 1.5m away from the I-shaped steel beam on the column, the length of the I-shaped steel beam extending into the building main body is determined according to the situation, if the length from the junction point to the edge of the floor is less than 1.7m, the I-shaped steel beam is anchored according to the actual length, and if the length from the junction point to the edge of the floor is more than 1.7m, the I-shaped steel beam extends into the building main body according to 1.7 m;

the I-shaped steel beam is cantilevered, the embedded steel bars 2 and the steel bar elbows 3 are used for carrying out two-way reinforcement on one section of the building floor, and when the length is less than 1.7m, three-way reinforcement is carried out;

c. corner platform roof beam fixed mounting and bracing installation:

according to the process a, a countersunk head anchor bolt 6 is pre-embedded before the column is poured, and the countersunk head anchor bolt is pre-embedded on the width central line of the column; 6 bolts are embedded in the top of the platform beam seat plate 5, the platform beam seat plate is arranged in a double-row mode, 2 bolts are embedded in the bottom of the platform beam seat plate, and if necessary, 2 bolts are additionally embedded in the waist of the base; 1 bolt is pre-embedded at each of four corners of the base plate 12 of the support rod;

during installation, the corner platform beam 4 and the platform beam seat plate 5 are in full-welding connection and fixed on the structural column through bolts, and nuts are screwed tightly to prevent looseness; the support rod sleeve 9 is connected with the connecting plate 8 through a bolt, and a nut is screwed tightly; then installing a supporting rod base plate 12 and connecting the supporting rod base plate with the column by using bolts; next, the support rod sleeve 9 is connected with the adjustable support rod sleeve 10, the orifices are aligned, the length is adjusted, when the lower end of the adjustable support rod sleeve 10 falls at the middle position of the support rod base plate 12, the pin 11 is inserted, and the lower end of the adjustable support rod sleeve 10 is welded with the support rod base plate 12;

d. welding the small short pipe:

welding small short pipe upright bases 13 serving as fulcrums of upright rods 14 on overhanging sections of the column side platform beams 1 and the corner platform beams 4, wherein the distance between an outer fulcrum and the outer end of an I-shaped steel beam is 100mm, the distance between the two fulcrums is 0.8m, and the distance between an inner fulcrum and a wall is 0.3 m;

e. and (3) mounting a corner lapping beam:

according to the actual length, two ends of the corner lapping beam 17 are lapped on the platform beam seat plate 5 and fixed by spot welding;

f. upright rod fixed mounting and cross rod mounting

Setting up according to a conventional external frame setting method, wherein the maximum length of the upright rods, the large cross rods and the inclined rods is 6.5m, and the length of the small cross rods is 1.5 m; the distance between the vertical rods is 0.8m, the longitudinal distance is 1.5m, the step distance between the large cross rods is 1.8m, the small cross rods are arranged close to the vertical rods and are lapped on the large cross rods, the distance between the small cross rods and the large cross rods is 0.75m, and all the rod pieces are fastened by fasteners.

The working principle of the utility model is as follows:

1. the platform beam is similar to a traditional cantilever outer frame beam, I-shaped steel with good bending performance is used as a material, and the I-shaped steel beam bears the vertical load of the outer frame.

2. When the platform beam at the column side is cantilevered, one end of the platform beam at the column side 1 is anchored in a floor panel through the embedded steel bar 2 and the steel bar elbow 3 to bear the load of bending moment. The embedded steel bars 2 are embedded in the floor slab, and after the column side platform beam 1 is placed, the embedded steel bars 2 and the steel bar elbows 3 are connected in a welding mode to hoop the column side platform beam 1 and can be welded and reinforced when necessary.

3. Corner, 4 one ends of corner platform roof beam and 5 welded connection of platform roof beam bedplate, the bolt hole is reserved to platform roof beam bedplate 5, through pre-buried countersunk anchor 6 on the post with 5 bolted connection of platform roof beam bedplate, fixed corner platform roof beam 4 positions. The connecting bolts bear shearing force, and meanwhile, the upper row of bolts bear the tensile force. The corner platform beam 4 transfers the load to the column through the platform beam seat plate 5 and the bolts.

4. The lower wing at the other end of the corner platform beam 4 is provided with a bolt hole, a support rod sleeve 9 and a connecting plate 8 are welded to form a whole, and the connecting plate 8 is connected with the platform beam 4 through a connecting bolt 7.

5. The support rod sleeve 9 and the adjustable support rod sleeve 10 are provided with a row of holes along a longitudinal straight line at the end part, the hole opening distance is equal, the outer diameter of the support rod sleeve 9 is slightly smaller than the inner diameter of the adjustable support rod sleeve 10, the support rod sleeve 9 is inserted into the adjustable support rod sleeve 10, the hole openings are aligned, and the pin 11 is fixed in length to play a role in adjusting the length of the support diagonal rod.

6. The adjustable supporting rod sleeve 10 is connected with a supporting rod base plate 12 in a welding mode, and the supporting rod base plate 12 is fixedly connected with a pre-buried countersunk head anchor bolt 6 through a bolt. The supporting rod sleeve pipe 9 and the adjustable supporting rod sleeve pipe 10 are used as the inclined rods of the triangular supporting frame, the shape is fixed, the tension is borne, and the pressure is transmitted to the column through the supporting rod base plate 12.

7. The upright base 13 is a section of small short pipe with two ends of different diameters, the diameter of the upper part is smaller, and the diameter of the lower part is larger and is equal to the inner diameter of the outer frame upright 14. The pole setting base 13 welds in 4 both ends of platform roof beam and the partial both ends of encorbelmenting of platform roof beam 1, and the outrigger pole setting 14 is inserted and is carried out upright fixed mounting on the pole setting base 13, and the pole setting base 13 lower part diameter equals the internal diameter restriction pole setting 14 of outrigger pole setting lower extreme not hard up and displacement, increases stability and factor of safety.

8. The upright 14, short 16, corner arc rails 20 and long rails 21 are connected by fasteners 15.

9. The two ends of the corner lapping beam 17 are lapped on the corner platform beam 4 and are welded and fixed in a spot welding mode, the height of the corner lapping beam is equal to the height of the upper skin of the short cross rod 16, the platform pedal 18 is supported together, and potential safety hazards caused by the fact that the platform pedal 18 has no stress point due to the fact that the span is large on the outer side of the corner are prevented.

10. The crossbar connector sleeve 19 is used to connect the long crossbar 21 to the corner arc crossbar 20.

11. The corner arc-shaped cross bar 20 is lapped outside the corner with the upright stanchion 14 through the fastener 15, and plays the role of protecting and increasing the width of the channel.

The construction process of the utility model is as follows:

installation preparation → installation of a column side platform beam → fixed installation of a corner platform beam → installation of an inclined strut → welding of a small short pipe → installation of a corner lapping beam → fixed installation of a vertical rod → installation of a cross rod → pavement of a scaffold board → installation of a complete frame body.

The method comprises the following specific steps:

1. preparation for installation

Before floor and post were pour, carry out platform roof beam interval and length and calculate, the anchor point of reference column side platform roof beam carries out the reinforcing bar pre-buried, and the countersunk anchor position of reference column face is pre-buried and fixed countersunk anchor, carries out the concrete placement of floor and post, if prefabricated floor, can carry out the trompil bar planting.

When the strength of the concrete meets the requirement, materials are prepared for entering a field, floors and cylindrical surfaces are cleaned, personnel are mechanically in place, and special professionals are required to operate.

2. Column side platform beam mounting

The column side platform beam 1 is an 18-number I-shaped steel beam, the distance is 1.5m, the overhanging part is 1.3m, and the length of the overhanging part normally extending into the building main body is 1.7 m. The length of the I-shaped steel beams closest to the two sides of the column is 1.5m away from the I-shaped steel beams on the column, the length of the I-shaped steel beams extending into the building main body is determined according to the situation, if the length from the junction point to the edge of the floor is less than 1.7m, the I-shaped steel beams are anchored according to the actual length, and if the length from the junction point to the edge of the floor is more than 1.7m, the I-shaped steel beams extend into the building main body according to 1.7 m.

I-shaped girder steel encorbelments uses embedded bar 2 and reinforcing bar elbow 3 to carry out twice to consolidate at building floor one section, when length is less than 1.7m, carries out three times and consolidates.

3. Corner platform beam fixed mounting and diagonal bracing mounting

According to the process 1, a countersunk head anchor bolt 6 is embedded before the column is poured, and the countersunk head anchor bolt is embedded on the width central line of the column. Platform beam bedplate 5, the pre-buried 6 bolts in top, the double is arranged, the pre-buried 2 bolts in bottom, and the base waist adds establishes pre-buried 2 bolts if necessary. Four corners of the base plate 12 of the support rod are embedded with 1 bolt respectively.

During installation, the corner platform beam 4 and the platform beam seat plate 5 are in full-welding connection, fixed on the structural column through bolts, and the nuts are screwed up to prevent looseness. The support rod sleeve 9 is connected with the connecting plate 8 through a bolt, and a nut is screwed up. The support pole base plate 12 is then installed and bolted to the column. Next, the support rod sleeve 9 is connected to the adjustable support rod sleeve 10, the openings are aligned, the length is adjusted, the pin 11 is inserted when the lower end of the adjustable support rod sleeve 10 falls into the middle position of the support rod base plate 12, and the lower end of the adjustable support rod sleeve 10 is welded to the support rod base plate 12.

4. Welding small short pipe

And small short pipe upright base seats 13 are welded on the overhanging sections of the column side platform beams 1 and the corner platform beams 4 to serve as fulcrums of the upright rods 14, the distance between the outer fulcrums and the outer end of the I-shaped steel beam is 100mm, the distance between the two fulcrums is 0.8m, and the distance between the inner fulcrums and the wall is 0.3 m.

5. Corner lap beam mounting

The two ends of the corner lapping beam 17 are lapped on the platform beam seat plate 5 according to the actual length and are fixed by spot welding.

6. Upright rod fixed mounting, cross rod mounting and the like

The erection is carried out according to the conventional external frame erection method, the maximum length of the upright stanchion, the big cross bar and the diagonal bar is 6.5m, and the length of the small cross bar is 1.5 m. The distance between the vertical rods is 0.8m, the longitudinal distance is 1.5m, the step distance between the large cross rods is 1.8m, the small cross rods are arranged close to the vertical rods and are lapped on the large cross rods, the distance between the small cross rods and the large cross rods is 0.75m, and all the rod pieces are fastened by fasteners.

The innovation of the utility model is that:

1. the building floor cantilever outer frame is characterized in that a platform beam at a corner is connected to a column through bolts and does not extend into the building main body;

2. the corner platform beam bears the load of the frame body through the bolts and the inclined struts of the triangular supports;

3. the platform beam is welded with the platform beam seat, and the lower sleeve of the inclined strut is welded with the inclined strut base;

4. the platform beam seat and the diagonal brace base are connected through countersunk anchor bolts embedded in the columns by using bolts, the tops of the bolts of the platform beam seat are arranged in two rows, the waist is supplemented, the bottom of the platform beam seat is arranged in a single row, and the bolts of the diagonal brace base are arranged on four angular points;

5. the length of the inclined strut is adjustable, the outer diameter of an upper rod of the inclined rod is slightly smaller than the inner diameter of a lower rod, holes are formed in the connection position along a straight line, the holes are aligned during installation, the upper rod is inserted into the lower rod to adjust the length, and then a pin is inserted for fixation;

6. the corner lapping beams are arranged on the two platform beams at the corner and used for supporting the scaffold board outside the corner;

7. the long transverse rods outside the corners are made into arc-shaped protection, so that the width of the channel is increased;

8. the corner arc cross rod is connected with the sleeve by a cross rod.

The construction method can be applied to the erection of the construction platform of the overhanging outer frame with the structural columns at the corners of the building floor; the building outer wall surface is the shear force wall, and I-shaped steel beam need not to go deep into the outer platform of putting up of encorbelmenting of building floor.

In the description of the present invention, it is to be understood that the terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the referenced protective system or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, is not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The above embodiments are only specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications are possible without departing from the inventive concept, and such obvious alternatives fall within the scope of the utility model.

Claims (10)

1. A building floor corner cantilever outer frame supporting system is characterized by comprising a column side platform beam, a corner platform beam, a platform beam seat plate, a countersunk anchor bolt, a connecting plate, a supporting rod sleeve, an adjustable supporting rod sleeve, a pin, a supporting rod base plate, a vertical rod base, a vertical rod, a short transverse rod, a corner lapping beam, a platform pedal, a corner arc transverse rod and a long transverse rod; one end of the column side platform beam is anchored in the floor panel, and the other end of the column side platform beam extends towards the outer side of the floor panel to form an overhanging part; the column side platform beams are arranged at intervals along the horizontal extending direction of the floor slab to form a bearing structure; one end of the corner platform beam is welded with the platform beam seat plate, and the other end of the corner platform beam extends towards the outer side of the pillar to form an overhanging part; a bolt hole is reserved in the platform beam seat plate and is connected with the platform beam seat plate through a countersunk anchor bolt pre-embedded in the column; the two corner platform beams are respectively and vertically connected to different outer side surfaces of the column; a plurality of upright rod bases are vertically arranged, and the lower ends of the upright rod bases are welded at two ends of the platform beam or two ends of the overhanging part of the platform beam; the supporting rod sleeve and the adjustable supporting rod sleeve are provided with a row of holes in a straight line along the longitudinal direction at the end parts, the outer diameter of the supporting rod sleeve is smaller than the inner diameter of the adjustable supporting rod sleeve, the supporting rod sleeve is inserted into the adjustable supporting rod sleeve, the hole openings of the supporting rod sleeve are aligned, and the length of the supporting rod sleeve is fixed through pins; the outer frame upright stanchion is vertically inserted to the outer side of the upright stanchion base from top to bottom for vertical fixed installation; the corner arc cross rod and the long cross rod are connected with adjacent outer frame upright rods along the horizontal direction; two ends of the corner lapping beam are lapped on the overhanging part of the corner platform beam and are welded and fixed by electric welding, and the height of the corner lapping beam is equal to the height of the upper skin of the short cross bar; the platform pedal is arranged above and supported by the corner bridge and the short cross rod; the column side platform beam is an I-shaped steel beam.

2. The building floor corner cantilever outrigger outer frame support system of claim 1 wherein the openings are equally spaced.

3. The building floor corner overhanging outer frame supporting system of claim 2, wherein the building floor corner overhanging outer frame supporting system further comprises fasteners, and the upright posts, the short cross bars, the corner arc cross bars and the long cross bars are connected through the fasteners.

4. The building floor corner cantilever outrigger outer frame support system of claim 3, wherein the corner arc cross bar is lapped outside the corner with the vertical bar through a fastener.

5. The building floor corner overhanging outer frame supporting system of claim 4, wherein the building floor corner overhanging outer frame supporting system further comprises a cross bar connecting sleeve, and the cross bar connecting sleeve connects the long cross bar and the corner arc cross bar.

6. The building floor corner cantilever outrigger outer frame support system of claim 5, wherein the platform tread is a plywood or bamboo tread.

7. The building floor corner cantilever outer frame support system according to claim 6, wherein the upright rod base is a small short pipe with two ends of different diameters, the upper part of the short pipe is small in diameter, and the lower part of the short pipe is large in diameter.

8. The building floor corner overhanging outer frame support system of claim 7 wherein the diameter of the lower portion of the upright base is equal to the inner diameter of the outer frame upright to limit loosening and displacement of the lower end of the upright.

9. The building floor corner cantilever outrigger outer frame support system of claim 8, wherein the platform deck includes a curved section for being disposed at a corner and straight sections connected to both ends of the curved section.

10. The building floor corner cantilever outer frame support system according to claim 9, wherein the building floor corner cantilever outer frame support system further comprises embedded steel bars and steel bar elbows, and one end of the column side platform beam is anchored in the floor panel through the embedded steel bars and the steel bar elbows.

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