CN110593596B - Interlayer frame structure and construction method thereof - Google Patents
Interlayer frame structure and construction method thereof Download PDFInfo
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- CN110593596B CN110593596B CN201910785897.6A CN201910785897A CN110593596B CN 110593596 B CN110593596 B CN 110593596B CN 201910785897 A CN201910785897 A CN 201910785897A CN 110593596 B CN110593596 B CN 110593596B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0266—Enlarging
Abstract
A frame structure of an interlayer and a construction method thereof relate to the field of civil engineering, the frame structure is arranged among a plurality of main columns of a floor, comprises a space structure and a plurality of groups of bearing structures, and comprises a plurality of vertical secondary columns, and each secondary column is adjacent to one main column; a plurality of structural beams are erected between the secondary columns, are in a grid shape and are positioned on the same plane; and the multiple groups of bearing structures are used for bearing the bottoms of the secondary columns, and each group of bearing structures is used for fixedly connecting the secondary columns with the adjacent main columns. The invention solves the technical problems that the structural secondary column generates larger pressure on the floor bottom plate and divides the floor space.
Description
Technical Field
The invention relates to the field of civil engineering, in particular to an interlayer frame structure and a construction method thereof.
Background
In the process of engineering construction and interior decoration, some floors with larger floor heights or underground buildings are often additionally provided with interlayers in order to better utilize floor space. For example, an interlayer is added in a residential floor with the floor height of 4.5m, and the floor is divided into an upper floor and a lower floor; the lower layer is designed to be 2.80m according to residential design code and is used for living people; the upper layer is designed to be 1.7m and is used for placing sundries. The existing method for adding the interlayer is mainly to build a plurality of structural secondary columns, wherein the bottoms of the secondary columns are supported on a floor bottom plate, and the tops of the secondary columns are used for supporting the interlayer. However, the method for adding the interlayer has the following defects:
1. the load generated by the sandwich structure is directly transmitted to the floor bottom plate through the structural secondary column, and larger pressure is generated on the floor bottom plate; the unit area of the contact surface of the structural secondary column and the floor bottom plate can generate larger pressure, and the requirement on the bearing capacity of the floor bottom plate is higher.
2. Many structure secondary posts form the partition to the floor space, have occupied the usage space of floor, have reduced the usable floor area of floor.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an interlayer frame structure and a construction method thereof, and solves the technical problems that a structural secondary column generates larger pressure on a floor bottom plate and divides a floor space.
In order to achieve the above object, an interlayer frame structure is adopted, installed between a plurality of main columns of a floor, comprising: a space structure comprising a plurality of vertical secondary columns, each of said secondary columns being adjacent to one of said primary columns; a plurality of structural beams are erected between the secondary columns, are in a grid shape and are positioned on the same plane; and the multiple groups of bearing structures are used for bearing the bottoms of the secondary columns, and each group of bearing structures is used for fixedly connecting the secondary columns with the adjacent main columns.
Preferably, the bearing structure contains bearing sleeve and L shaped steel board, bearing sleeve cover is located inferior post bottom, L shaped steel board contains two mutually perpendicular's panel, one of them panel fixed connection the principal post, another panel fixed connection the bearing sleeve.
Preferably, the frame structure further comprises anchor bolts and stud bolts, the L-shaped steel plate comprises a first panel provided with first screw holes and a second panel provided with second screw holes, the first panel is fixed to the main column by the anchor bolts penetrating through the first screw holes, and the second panel is fixed to the supporting sleeve by the stud bolts penetrating through the second screw holes.
Preferably, the first panel and the main column and the second panel and the supporting sleeve are bonded by chemical bonding agents.
Preferably, the bearing sleeve is a cavity with an upward opening, the bottom end of the secondary column is inserted and fixed in the cavity, and the contact surface of the bearing sleeve and the bottom end of the secondary column is bonded by chemical bonding agents or high-strength mortar.
Preferably, the chemical binder is grade A fast-curing structural adhesive.
Preferably, the studs extend through the second panel, the support sleeve and the secondary post and secure the three together.
The invention also discloses a construction method of the frame structure, which comprises the following steps:
fixedly mounting the bearing structures on the main columns, wherein the heights of the multiple groups of bearing structures from the floor bottom plate are consistent;
binding the reinforcing steel bars of the secondary columns above the bearing structure, and performing vertical mold pouring molding;
and constructing a plurality of latticed structural beams on the basis of the secondary columns to construct at least one space structure.
Preferably, the bearing structure contains bearing sleeve and L shaped steel board, bearing sleeve cover is located inferior post bottom, L shaped steel board contains two mutually perpendicular's panel, one of them panel fixed connection the principal post, another panel fixed connection the bearing sleeve.
Preferably, the frame structure further comprises an anchor bolt and a stud bolt, the L-shaped steel plate comprises a first panel provided with a first screw hole and a second panel provided with a second screw hole, the first panel is fixed to the main column by the anchor bolt penetrating through the first screw hole, and the second panel is fixed to the bearing sleeve by the stud bolt penetrating through the second screw hole; and chemical bonding agents are further adopted for bonding between the first panel and the main column and between the second panel and the bearing sleeve.
The invention has the following beneficial effects:
1. compared with the prior art, the interlayer frame structure is suspended, the self gravity load of the interlayer is not directly transmitted to the floor bottom plate through the secondary column any more, the floor bottom plate does not bear larger pressure any more, and the requirement on the bearing capacity of the floor bottom plate is reduced.
2. The self gravity load of the interlayer is transmitted to the main column through the secondary column of the frame structure and the bearing structure to be connected; specifically, the load of the secondary column is transmitted to the bearing sleeve, and the bearing sleeve transmits the load to the main column through the L-shaped steel plate;
the frame structure is simple and safe in structure, clear in stress and convenient to construct, the floor space is prevented from being divided by the falling of the secondary column, and the using area of the floor is indirectly increased;
meanwhile, the anchoring bolt coated with the chemical bonding agent is anchored on the main column, and the stud bolt coated with the chemical bonding agent penetrates through the secondary column; the chemical adhesive with high-strength adhesive property enables the two bolts not to damage the main column and the secondary column, and the stress property of the frame structure is greatly enhanced.
Drawings
FIG. 1 is a schematic view of a sandwich structure according to an embodiment of the present invention.
Fig. 2 is a schematic view of the connection between the primary and secondary columns according to the embodiment of the present invention.
Fig. 3 is a schematic diagram of an L-shaped steel plate structure according to an embodiment of the present invention.
FIG. 4 is a schematic view of a support sleeve according to an embodiment of the present invention.
Fig. 5 is an expanded view of fig. 4.
FIG. 6 is a schematic view of an anchor bolt according to an embodiment of the present invention.
FIG. 7 is a schematic view of a stud according to an embodiment of the present invention.
Reference numerals: the structure comprises a main column 1, a secondary column 2, a 3-L-shaped steel plate, an anchor bolt 4, a bearing sleeve 5, a stud 6, a spatial structure 7, a first screw hole 17, a second screw hole 8, a bearing structure 10, a first panel 11, a second panel 12 and a structural beam 71.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1, a sandwich frame structure, which is installed between a plurality of main columns 1 of a floor, comprises a space structure 7 and a plurality of groups of supporting structures 10. The space structure 7 comprises a plurality of vertical secondary columns 2, and each secondary column 2 is adjacent to one main column 1; a plurality of structural beams 71 are erected between the secondary columns 2, and the structural beams 71 are in a grid shape and are positioned on the same plane. The multiple groups of bearing structures 10 are all supported at the bottom of the secondary column 2, and each group of bearing structures 10 is used for fixedly connecting the secondary column 2 with the adjacent main column 1.
In this embodiment, an interlayer divides a floor space into an upper layer and a lower layer, the interlayer may only include one frame structure, and one frame structure includes one space structure 7; in this case, the space structure 7 of the frame structure is fixedly connected to all the main columns 1 by means of a plurality of sets of supporting structures 10. After the construction of the frame structure is completed, structures such as laminates are paved on the frame structure, and a complete interlayer is formed. The interlayer can also comprise more than one frame structure, a structure such as a laminate is paved above each frame structure, one frame structure comprises a space structure 7, the space structure 7 of each frame structure is fixedly connected with part of the main columns 1 through a bearing structure 10, and the frame structures paved with the structures such as the laminate are arranged among more than one main columns 1 to form a complete interlayer.
As shown in fig. 1 and 2, the supporting structure 10 includes a supporting sleeve 5 and an L-shaped steel plate 3, the supporting sleeve 5 is sleeved on the bottom end of the secondary column 2, the L-shaped steel plate 3 includes two mutually perpendicular panels, one of the panels is fixedly connected to the main column 1, and the other panel is fixedly connected to the supporting sleeve 5.
Specifically, the length and width dimensions of the support sleeve 5 are determined by the dimensions of the secondary column 2, and the height is determined by the weight load transmitted by the secondary column 2.
Preferably, the L-shaped steel plate 3 and the bearing sleeve 5 both use low-carbon steel, and the raw materials have wide sources, strong weldability and convenient manufacture.
As shown in fig. 2 and 3, the frame structure further includes an anchor bolt 4 and a stud bolt 6, the L-shaped steel plate 3 includes a first panel 11 and a second panel 12, the first panel 11 has a first screw hole 17, and the second panel 12 has a second screw hole 8. The first panel 11 is fixed to the main column 1 by the anchor bolt 4 passing through the first screw hole 17, and the second panel 12 is fixed to the support sleeve 5 by the stud bolt 6 passing through the second screw hole 8.
In particular, the first threaded hole 17 is just matched with the anchor bolt 4 and the second threaded hole 8 is just matched with the stud bolt 6 with only a small clearance. Preferably, the diameter and number of the anchor bolts 4 and the stud bolts 6 are determined by the weight load of the secondary posts 2.
Preferably, the anchor bolts 4 (shown in fig. 6) and the stud bolts 6 (shown in fig. 7) are made of high-strength alloy steel, so that the anchor bolts 4 and the stud bolts 6 have good shear performance.
Further, the height of the L-shaped steel plate 3 is consistent with that of the bearing sleeve 5; the diameter and the distance between the second screw holes 8 of the second plate 12 are identical to those of the second screw holes 8 of the support sleeve 5.
In this embodiment, the first panel 11 and the main column 1 and the second panel 12 and the support sleeve 5 are bonded by chemical adhesives, so that a large adhesive force is generated between the first panel 11 and the main column 1 and between the second panel 12 and the support sleeve 5. In this embodiment, the anchor bolt 4 and the main column 1 are anchored by using a chemical adhesive, so that a large pulling resistance is generated between the anchor bolt 4 and the main column 1, and the concrete of the main column 1 is prevented from being cracked and damaged.
In this embodiment, bearing sleeve 5 is the cavity that the opening faces up, and the bottom of secondary post 2 is inserted and is established and be fixed in the cavity, and bearing sleeve 5 adopts chemical binder or high strength mortar bonding with the bottom contact surface of secondary post 2. In particular, the contact surfaces comprise the inner wall surface and the inner wall bottom surface of the cavity of the bearing sleeve 5.
As shown in fig. 4 and 5, the support sleeve 5 is rectangular and is formed by welding five steel plates of equal size, and includes a bottom plate and four side plates. Wherein two blocks of curb plates that set up relatively have seted up second screw 8, and bottom plate and two other blocks of curb plates do not have the trompil.
Preferably, the chemical adhesive is grade A fast-curing structural adhesive.
Preferably, the stud 6 penetrates the second panel 12, the bearing bush 5 and the secondary post 2 and fixes them together.
After the frame structure of the embodiment of the invention is constructed, the load transmission is as follows:
the space structure 7 has larger dead weight, and the gravity load of the space structure is transmitted to the bearing sleeve 5 through the secondary column 2, the stud 6 and the chemical adhesive; the force transmission between the secondary column 2 and the bearing sleeve 5 is mainly through the adhesive force, and the stud 6 only bears a small part;
the double-headed bolt 6 is also connected and bonded between the bearing sleeve 5 and the second panel 12; the bearing sleeve 5 transmits the load to the L-shaped steel plate 3;
the first panel 11 of the L-shaped steel plate 3 is connected with the main column 1 in an adhesion and anchoring mode; the L-shaped steel plate 3 transmits the load to the main column 1 (existing structural column);
compared with the prior art, the self gravity load of the interlayer frame structure is transmitted to the bearing sleeve 5 through the secondary column 2, and the bearing sleeve 5 transmits the load to the main column 1 through the L-shaped steel plate 3; the frame structure has simple and safe structure, is definitely stressed and is convenient for construction, the secondary column 2 is prevented from falling to the ground to form partition of the floor space, and the using area of the floor is indirectly increased.
The invention also discloses a construction method of the frame structure, which comprises the following steps:
fixedly mounting the bearing structures 10 on the main columns 1, wherein the heights of the multiple groups of bearing structures 10 from the floor bottom plate are consistent;
binding the reinforcing steel bars of the secondary column 2 above the bearing structure 10, and performing vertical mold pouring molding;
on the basis of the secondary pillars 2, a plurality of lattice-shaped structural beams 71 are constructed to construct at least one space structure 7.
In a still further particular embodiment, the first and second,
s1, fixing a first panel 11 of an L-shaped steel plate 3 on a main column 1 by using an anchor bolt 4; the anchor bolt 4 and the main column 1 are anchored by chemical bonding agent; the contact surface of the first panel 11 and the main column 1 can be bonded by chemical bonding agents or high-strength mortar;
s2, connecting the bearing sleeve 5 with a second panel 12 of the L-shaped steel plate 3 by using a stud 6; the contact surface of the bearing sleeve 5 and the second panel 12 is bonded by chemical adhesive;
s3, binding the steel bars of the secondary columns 2; erecting a mould and pouring concrete to form a secondary column 2;
and S4, continuously binding reinforcing steel bars, erecting a mould and pouring concrete on the basis of the secondary columns 2, constructing a plurality of latticed structural beams 71, and constructing at least one space structure 7.
In another embodiment, when the secondary column 2 and the space structure 7 are existing structures and the bottom of the secondary column 2 is supported on the floor, the construction method for transforming the existing structures into the frame structure comprises the following steps:
fixedly mounting the bearing structures 10 between the main column 1 and the secondary columns 2, wherein the heights of the multiple groups of bearing structures 10 from the floor bottom plate are consistent;
the support structure 10 is used as a boundary to cut off the lower part of the secondary pillars 2.
In particular, the amount of the solvent to be used,
s1, removing a steel plate on the bottom surface of a bearing sleeve 5, and fixing the bearing sleeve 5 and a second panel 1 of an L-shaped steel plate 3 on a secondary column 2 by using a stud 6; the stud 6 and the secondary column 2 are bonded by chemical bonding agents; the bearing sleeve 5 and the secondary column 2 are bonded by chemical bonding agents, and can also be bonded by high-strength mortar;
s2, utilizing an anchor bolt 4 to anchor and connect the L-shaped steel plate 3 and the main column 1, and bonding the anchor bolt 4 and the main column 1 by adopting a chemical bonding agent;
s3, sawing off the secondary column 2 below the bearing sleeve 5;
and S4, welding a bottom plate of the bearing sleeve 5 to complete transformation.
Specifically, bearing structure 10 contains bearing sleeve 5 and L shaped steel board 3, and 2 bottoms on the secondary post are located to bearing sleeve 5 cover, and L shaped steel board 3 contains two mutually perpendicular's panel, one of them panel fixed connection principal post 1, another panel fixed connection bearing sleeve 5.
Furthermore, the frame structure also comprises anchor bolts 4 and stud bolts 6, the L-shaped steel plate 3 comprises a first panel 11 provided with a first screw hole 17 and a second panel 12 provided with a second screw hole 8, the first panel 11 is fixed on the main column 1 by the anchor bolts 4 penetrating through the first screw hole 17, and the second panel 12 is fixed on the bearing sleeve 5 by the stud bolts 6 penetrating through the second screw hole 8; the first panel 11 is also bonded to the main column 1 and the second panel 12 is bonded to the support sleeve 5 using chemical adhesives.
Compared with the prior art, the construction method is simple and easy to popularize, the frame structure of the interlayer is suspended, the self gravity load of the interlayer is not directly transmitted to the floor bottom plate through the secondary column any more, the floor bottom plate does not bear larger pressure any more, and the requirement on the bearing capacity of the floor bottom plate is reduced.
The present invention is not limited to the above-described embodiments, and it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and such modifications and improvements are also considered to be within the scope of the present invention. Those not described in detail in this specification are within the skill of the art.
Claims (8)
1. An interlayered frame structure, to be installed between a plurality of main columns (1) of a floor, comprising:
-a spatial structure (7) comprising a plurality of vertical secondary columns (2), each secondary column (2) being immediately adjacent to one primary column (1); a plurality of structural beams (71) are erected between the secondary columns (2), and the structural beams (71) are in a grid shape and are positioned on the same plane;
the multiple groups of bearing structures (10) are used for bearing the bottoms of the secondary columns (2), and each group of bearing structures (10) fixedly connects the secondary columns (2) with the adjacent main column (1);
bearing structure (10) contain bearing sleeve (5) and L shaped steel board (3), bearing sleeve (5) cover is located inferior post (2) bottom, L shaped steel board (3) contain two mutually perpendicular's panel, one of them panel fixed connection principal post (1), another panel fixed connection bearing sleeve (5).
2. The frame structure of claim 1, wherein: the frame construction still contains anchor bolt (4) and stud (6), L shaped steel board (3) contain first panel (11) of seting up first screw (17) and set up second panel (12) of second screw (8), first panel (11) are passed anchor bolt (4) of first screw (17) are fixed in king post (1), second panel (12) are passed stud (6) of second screw (8) are fixed in bearing sleeve (5).
3. The frame structure of claim 2, wherein: the first panel (11) and the main column (1) and the second panel (12) and the bearing sleeve (5) are bonded by chemical adhesives.
4. The frame structure of claim 2, wherein: the bearing sleeve (5) is a cavity with an upward opening, the bottom end of the secondary column (2) is inserted and fixed in the cavity, and the contact surface of the bearing sleeve (5) and the bottom end of the secondary column (2) is bonded by chemical bonding agents or high-strength mortar.
5. The frame structure of claim 3 or 4, wherein: the chemical binder adopts A-grade fast-curing structural adhesive.
6. The frame structure of claim 4, wherein: stud (6) run through second panel (12), bearing sleeve (5) and secondary post (2) to fix the three together.
7. A method of constructing a frame structure according to claim 1, characterized by the steps of:
fixedly mounting the bearing structures (10) on the main column (1), wherein the heights of the multiple groups of bearing structures (10) from the floor bottom plate are consistent;
binding the reinforcing steel bars of the secondary columns (2) above the bearing structure (10), and performing vertical mold pouring molding;
building a plurality of latticed structural beams (71) on the basis of the secondary columns (2), and building at least one space structure (7).
8. The construction method according to claim 7, wherein: the frame structure further comprises anchor bolts (4) and stud bolts (6), the L-shaped steel plate (3) comprises a first panel (11) provided with a first screw hole (17) and a second panel (12) provided with a second screw hole (8), the first panel (11) is fixed to the main column (1) through the anchor bolts (4) penetrating through the first screw hole (17), and the second panel (12) is fixed to the bearing sleeve (5) through the stud bolts (6) penetrating through the second screw hole (8); the first panel (11) and the main column (1) and the second panel (12) and the bearing sleeve (5) are bonded by chemical adhesives.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910785897.6A CN110593596B (en) | 2019-08-23 | 2019-08-23 | Interlayer frame structure and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910785897.6A CN110593596B (en) | 2019-08-23 | 2019-08-23 | Interlayer frame structure and construction method thereof |
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| CN110593596A CN110593596A (en) | 2019-12-20 |
| CN110593596B true CN110593596B (en) | 2021-08-03 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4640070A (en) * | 1986-03-21 | 1987-02-03 | Ian Moffat | Method of adding extra floors on existing buildings |
| CN202416577U (en) * | 2012-02-27 | 2012-09-05 | 山东同圆设计集团有限公司 | Suspended type equipment layer |
| CN203583730U (en) * | 2013-11-14 | 2014-05-07 | 四川华铁钢结构有限公司 | Embedded-type floor slab structure |
| WO2016036564A1 (en) * | 2014-09-02 | 2016-03-10 | Brigham Young University | Moment-resiting frames, kits for assembling the same, and methods of repairing the same |
| CN105951983A (en) * | 2016-06-01 | 2016-09-21 | 四川省第四建筑工程公司 | Building frame structure and construction method thereof |
| CN209211935U (en) * | 2018-11-01 | 2019-08-06 | 广州市众润房屋科技有限公司 | A kind of installation interlayer of workshop |
-
2019
- 2019-08-23 CN CN201910785897.6A patent/CN110593596B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4640070A (en) * | 1986-03-21 | 1987-02-03 | Ian Moffat | Method of adding extra floors on existing buildings |
| CN202416577U (en) * | 2012-02-27 | 2012-09-05 | 山东同圆设计集团有限公司 | Suspended type equipment layer |
| CN203583730U (en) * | 2013-11-14 | 2014-05-07 | 四川华铁钢结构有限公司 | Embedded-type floor slab structure |
| WO2016036564A1 (en) * | 2014-09-02 | 2016-03-10 | Brigham Young University | Moment-resiting frames, kits for assembling the same, and methods of repairing the same |
| CN105951983A (en) * | 2016-06-01 | 2016-09-21 | 四川省第四建筑工程公司 | Building frame structure and construction method thereof |
| CN209211935U (en) * | 2018-11-01 | 2019-08-06 | 广州市众润房屋科技有限公司 | A kind of installation interlayer of workshop |
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| CN110593596A (en) | 2019-12-20 |
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