CN219080602U

CN219080602U - ALC wallboard and girder steel and concrete floor connection structure

Info

Publication number: CN219080602U
Application number: CN202223566314.7U
Authority: CN
Inventors: 张相勇; 高占祥; 李豪; 陈华周; 杨冬冬; 俞浩; 杨华; 张鹏飞; 李静姝; 刘发起; 张旭
Original assignee: Harbin Institute of Technology; Yangzhou University; China Construction Science and Industry Corp Ltd
Current assignee: Harbin Institute of Technology; Yangzhou University; China Construction Science and Industry Corp Ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-05-26
Anticipated expiration: 2032-12-30

Abstract

The utility model relates to a connection structure of an ALC wallboard, a steel beam and a concrete floor slab, which belongs to the field of constructional engineering and comprises a steel beam, wherein pi-shaped pieces are detachably connected to the upper flange of the steel beam, positioning holes for mounting the pi-shaped pieces are formed in the upper flange of the steel beam, angle steel is arranged on the upper side and the lower side of the steel beam, the pi-shaped pieces are detachably connected with the ALC wallboard through the angle steel, and the steel beam is detachably connected with the ALC wallboard through the angle steel. The utility model can ensure reliable connection, reasonable stress and reduced welding quantity, the length of angle steel is reduced to half of the wall width, and the angle steel is arranged at intervals along the wall width direction, thereby not only reducing the thermal bridge effect, but also saving materials, the angle steel, the split bolt, the expansion bolt and the pi-shaped piece are all made of GFRP materials, not only ensuring the connection strength, but also reducing the thermal bridge effect, and the high-efficiency heat-insulating material layer, the fireproof veneer layer and the nanometer vacuum heat-insulating plate layer are arranged on the two sides of the steel beam so as to isolate local thermal bridges and improve the heat insulation of the wall body.

Description

ALC wallboard and girder steel and concrete floor connection structure

Technical Field

The utility model relates to an ALC wallboard, steel beam and concrete floor slab connection structure, and belongs to the field of building engineering.

Background

Two common connection modes of the ALC wall body and the steel frame are externally hung type and embedded type. In the externally hung connection, the ALC outer wall and the steel frame structure are connected in an out-of-plane mode, so that the effective space of the building is required to be additionally occupied, frame beams and columns possibly protrude out of the wall surface, and the building effect and the using function are affected. In embedded connection, the wall body can be flush with the steel frame, so that series of problems of exposed steel columns and steel beams are avoided, better building effects and building utilization rate can be obtained, meanwhile, the steel beams are directly arranged on the wall body, the use of temporary support can be reduced, construction procedures are simplified, and construction efficiency is improved. Therefore, the embedded connection is widely applied to the fabricated steel structure house.

For an embedded connection form of an ALC wall body and a steel structure frame, an atlas 19CJ85-1 'fabricated building autoclaved aerated concrete slab containment system' suggests three methods of embedded part nodes, steel pipe anchor nodes and flat bolt nodes, but the methods are complex in structure, more in connection parts, complex in construction procedures and high in requirements on plate production and installation accuracy. Traditional embedded connected node's construction way adopts the metal connecting piece to pass the wall body often, and rethread and wall body equal width lead to long equilateral angle steel and girder steel welded connection, and on-the-spot welding operation is more, and construction quality is more difficult to control, and has great conflagration hidden danger.

In the steel structure building outer enclosure wall, the heat conductivity coefficient of the beam, the column member and the node is far higher than that of the wallboard and the heat insulation material, and the connection part is extremely easy to form a heat bridge due to dense heat flow, becomes a weak part for heat transfer of the wall, seriously reduces the heat insulation performance of the wall, and can possibly cause condensation and dew formation in the wall. Particularly, it is important to attach importance to the embedded connection node of traditional ALC wallboard-girder steel, and the screw rod of metal material leads to long angle steel-girder steel to be connected, forms the communication path of heat transfer, probably causes apparent heat bridge effect, increases wall body heat transfer coefficient, makes the wall body internal surface form the low temperature strip with the same width of wall body in angle steel position department simultaneously, produces adverse effect to indoor thermal comfort.

Disclosure of Invention

The utility model aims to solve the problems of complex and complicated working procedures, high requirements on plate production and installation precision, obvious thermal bridge effect at the joint position and the like of the embedded connection construction of an ALC wall body and a steel structure frame, and further provides a connection structure of an ALC wallboard, a steel beam and a concrete floor slab.

The technical scheme adopted by the utility model for solving the problems is as follows: the steel beam comprises a steel beam, wherein pi-shaped pieces are detachably connected to an upper flange of the steel beam, positioning holes for mounting the pi-shaped pieces are formed in the upper flange of the steel beam, angle steel is arranged on the upper side and the lower side of the steel beam, the pi-shaped pieces are detachably connected with an upper ALC wallboard through the angle steel, and the steel beam is detachably connected with a lower ALC wallboard through the angle steel.

The lower flange of the steel beam is detachably connected with the short side of the contacted angle steel through a split bolt, the pi-shaped piece is detachably connected with the short side of the contacted angle steel through an expansion bolt, and the long sides of the two angle steels are respectively detachably connected with the upper layer and the lower layer of the ALC wallboard through split bolts.

The method can reduce the difficulty of the field positioning technology, reduce the welding quantity, simplify the working procedures, improve the construction efficiency and ensure the connection reliability.

Furthermore, grooves are formed in the upper side and the lower side of the ALC wallboard, and the grooves are filled with repair mortar.

Through opening the recess on the ALC wallboard with split bolt, angle steel corresponding position department, guarantee that the connecting piece is installed and is less than wall body surface, avoid the influence to construction treatment such as wall internal surface plastering and veneer to utilize repair mortar to repair.

Further, a reinforced concrete floor slab is poured between the steel beam and the pi-shaped piece.

The distance between the upper surface of the flange of the steel beam and the upper surface of the pi-shaped member flat plate is adjusted to be the design thickness of the floor, and the reinforced concrete floor is poured to enable the pi-shaped member to be embedded into the floor, and the reinforced concrete floor is used as a shearing-resistant connecting piece of the steel beam and the floor, so that the integral reliable connection between the steel beam and the floor is realized.

Furthermore, high-efficiency heat-insulating materials are arranged on two sides of the steel beam web, a fireproof thin plate is arranged on the high-efficiency heat-insulating materials, and a nanometer vacuum heat-insulating plate is arranged on the fireproof thin plate.

The high-efficiency heat-insulating material is used as a sound insulation layer and a local heat-insulating layer; using the fireproof sheet as a fireproof layer of the steel beam area; the nanometer vacuum insulation panels are used for blocking structural heat bridges generated by the steel beams, and the outer surfaces of the nanometer vacuum insulation panels on two sides are flush with the ALC wallboard.

Further, gaps between the steel beams and the ALC wallboard are filled through polyurethane foam, and gaps between the ALC wallboard and the reinforced concrete floor slab are filled through polyurethane foam.

The polyurethane foam is used for blocking a through seam thermal bridge and reducing heat loss.

Further, the indoor surface of ALC wallboard is provided with the thick liquids screed-coat, is provided with the sea Ji cloth on the thick liquids screed-coat, and the ALC wallboard outside is provided with bonding mortar, is provided with outer insulation system on the bonding mortar. The external heat preservation system adopts an external heat preservation structure integrating heat preservation and decoration or a thin plastering external heat preservation structure and the like according to the requirements.

The sea Ji cloth is used as an indoor decoration surface layer, has the performances of safety, environmental protection, fire resistance, water resistance, corrosion resistance, crack resistance and the like, and has air permeability which can facilitate the volatilization of moisture in a wall and prevent the condensation and dew formation in the wall.

Further, the length of the upper layer angle steel and the lower layer angle steel is half-plate width of the ALC wallboard, the upper layer angle steel and the lower layer angle steel are arranged at intervals along the width direction of the ALC wallboard, and the split bolts, the angle steel, the expansion bolts and the pi-shaped pieces are all made of GFRP materials.

The length of the angle steel is reduced to half of the wall width, and the angle steel is arranged at intervals along the wall width direction, so that the heat bridge effect is reduced, and the material is saved; the angle steel, the split bolt, the expansion bolt and the pi-shaped piece are made of GFRP materials, so that the connection strength is ensured, and meanwhile, the heat bridge effect can be reduced.

The beneficial effects of the utility model are as follows: through utilizing parts such as angle steel, split bolt, pi shape spare, realize the bolted connection between wallboard and girder steel, girder steel and the concrete floor, concrete floor and the wallboard, can guarantee that the connection is reliable, the atress is reasonable, reduces on-the-spot welding operation simultaneously, convenient construction. The two sides of the ALC wallboard are provided with the split bolts and the grooves at the positions of the angle steel, and the repair mortar is used for filling joints, so that the bolts can be prevented from being exposed, and the construction treatment such as leveling, plastering, facing and the like can be conveniently carried out on the surface of the wall body.

The length of the angle steel is reduced to half of the wall width, and the angle steel is arranged at intervals along the wall width direction, so that the heat bridge effect is reduced, and the material is saved; the angle steel, the split bolt, the expansion bolt and the pi-shaped piece are made of GFRP materials, so that the connection strength is ensured, and meanwhile, the heat bridge effect can be reduced. The high-efficient heat preservation material layer, fire prevention veneer layer and nanometer vacuum heat insulation board layer of girder steel both sides adoption are adopted, and the girder steel adopts polyurethane foam to fill with the gap between ALC wallboard, ALC wallboard and the concrete floor, can show the partition structure thermal bridge, improves wall body thermal insulation performance.

Drawings

FIG. 1 is a schematic illustration of the connection of the ALC side fascia to steel beams and concrete floor slabs of the present utility model;

FIG. 2 is a schematic illustration of the installation position of the angle of the present utility model in a single piece ALC wall panel facade;

FIG. 3 is a schematic illustration of the planar installation of the upper layer angle of the floor of the present utility model on a single piece of ALC wallboard;

FIG. 4 is a schematic illustration of the planar installation of the floor lower angle of the present utility model on a single piece of ALC wallboard;

FIG. 5 is a schematic view of the angle construction of the present utility model;

fig. 6 is a schematic view of a pi-shaped member configuration of the present utility model.

Detailed Description

The technical solutions in the embodiments of the present utility model will be further clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model:

example 1

The utility model acts on the building outer wall, is used for connecting steel beams, concrete floors and ALC walls, and compared with the traditional embedded connection mode, the connection part adopts a detachable structure for connection, thereby reducing the on-site positioning difficulty, avoiding on-site welding operation, simplifying construction procedures, improving the construction efficiency and ensuring the connection reliability. Meanwhile, the manufacturing materials of the connecting parts (angle steel, split bolts, expansion bolts, pi-shaped parts and the like) are changed, and the GFRP material which is low in heat conductivity, high in specific heat, small in thermal expansion coefficient, light in weight, high in strength, high in temperature resistance and corrosion resistance is adopted, so that the connection strength between the components can be ensured, the thermal expansion deformation difference between the connecting parts and a wall body can be reduced, the thermal bridge effect can be further reduced, and the heat loss of a building can be further reduced.

As shown in fig. 1 to 6, the connection structure of the ALC wallboard, the steel beam and the concrete floor slab according to the embodiment of the utility model comprises the steel beam 1, the steel beam 1 is an i-beam, the upper flange of the steel beam 1 is detachably connected with the pi-shaped member 15, the upper flange of the steel beam 1 is provided with a positioning hole for mounting the pi-shaped member 15, the shape of the pi-shaped member 15 is similar to that recommended in an atlas, but the size of the top plate of the pi-shaped member 15 and the number and length of the bottom connecting rods are different from those of the atlas, and the common pi-shaped members are required to be connected through welding. According to the utility model, the pi-shaped piece connecting rod is changed into the bolt, the requirement on the production and installation precision of the plate can be reduced by the bolt connection, the field welding operation can be reduced, the construction quality can be controlled conveniently, the fire hazard is reduced, the steel beam 1 and the ALC wallboard 13 are connected through the connecting rod end part of the pi-shaped piece 15, the steel beam 1 and the ALC wallboard 13 are connected through the pi-shaped piece 15, the connection between the steel beam 1 and the ALC wallboard 13 is firmer, and the connection integrity of the ALC wallboard 13 and the steel beam 1 is improved. Meanwhile, the dimension of the flat plate at the top of the pi-shaped piece 15 along the wall width direction is consistent with the length of the angle steel 10, and is half of the width of the single ALC wallboard, three bolt holes are formed in the same position of the flat plate of the pi-shaped piece 15 corresponding to the short side of the angle steel 10, and meanwhile, two pairs of connecting screws are arranged at the bottom side of the flat plate at the top of the pi-shaped piece 15, so that interlayer shearing force can be transferred more efficiently, and the shearing resistance of the wall body is improved. In addition, the dimension of the pi-shaped piece 15 plate along the wall thickness direction is consistent with the thickness of the ALC wallboard 13, so that the installation and the positioning of the ALC wallboard 13 can be facilitated, and the construction difficulty is reduced. The upper and lower both sides of girder steel 1 all are provided with angle steel 10, and pi shape 15 passes through angle steel 10 with ALC wallboard 13 and can dismantle the connection, girder steel 1 passes through angle steel 10 with ALC wallboard 13 and can dismantle the connection. The length of the angle steel 10 is shortened to be half of the width of the ALC wallboard 13, and the angle steel is only arranged at the middle position of the wallboard at intervals along the width direction of the wallboard, so that the material consumption can be reduced, the manufacturing cost can be saved, meanwhile, the low-temperature strips caused by the angle steel are reduced, and the indoor thermal comfort is improved. The midpoint of the long side of the angle steel 10 is provided with a vertical waist-shaped hole corresponding to the split bolt 9, the short side is provided with three horizontal waist-shaped holes, the position adjustment in the vertical and horizontal directions is convenient to install, the installation accuracy is reduced, the construction efficiency is improved, and the long sides of the two angle steels 10 are respectively detachably connected with the upper layer and the lower layer of the ALC wallboard 13 through the split bolt 9. The lower flange of the steel beam 1 is detachably connected with the short side of the contacted angle steel 10 through three opposite pull bolts 9, the pi-shaped piece 15 is detachably connected with the short side of the contacted angle steel 10 through expansion bolts 12, three waist-shaped grooves perpendicular to the pi-shaped piece 15 are formed in the waist-shaped groove positions of the short side of the corresponding angle steel 10, the position adjustment in two directions along the wall thickness and the wall width can be facilitated when the ALC wallboard 13 is installed, the installation accuracy is reduced, the construction efficiency is improved, and the short side of the angle steel 10 is connected with the ALC wallboard 13 through the three waist-shaped grooves of the pi-shaped piece 15 in a penetrating mode through the three expansion bolts 12. Grooves are formed in the upper side and the lower side of the ALC wallboard 13, the ALC wallboard 13 is convenient to be connected with the angle steel 10, the split bolt 9, the expansion bolt 12 and the pi-shaped piece 15, the grooves are filled with repair mortar 11, and the flatness of the wall surface can be guaranteed, so that plastering and interior decoration can be conveniently carried out. And a reinforced concrete floor slab 16 is poured between the steel beam 1 and the pi-shaped piece 15, and before the reinforced concrete floor slab 16 is poured, the pi-shaped piece 15 is buried in the reinforced concrete floor slab, so that reliable shearing connection between the floor slab and the steel beam is realized. The split bolt 9, the angle steel 10, the expansion bolt 12 and the pi-shaped piece 15 are all made of GFRP materials.

Example 2

This embodiment differs from embodiment 1 in that:

the connecting structure further comprises functional fillers, wherein the functional fillers comprise high-efficiency heat-insulating materials 2, fireproof thin plates 3, nanometer vacuum heat-insulating plates 4, bonding mortar 5, an external heat-insulating system 6, a slurry leveling layer 7, haiji cloth 8 and polyurethane foam 14, the high-efficiency heat-insulating materials 2 are arranged on two sides of a web plate of the steel beam 1, the fireproof thin plates 3 are arranged on the high-efficiency heat-insulating materials 2, and the nanometer vacuum heat-insulating plates 4 are arranged on the fireproof thin plates 3. The high-efficiency heat-insulating material 2 serves as a sound-insulating layer for improving sound-insulating performance of the wall body, and can be used as a local heat-insulating layer to reduce the heat bridge effect at the steel beam. The fireproof thin plate 3 is stuck on the surface of the high-efficiency heat-insulating material 2 and serves as a position fireproof layer of the steel beam, so that the fireproof performance of the steel beam can be ensured. The nanometer vacuum heat insulation plate 4 is stuck to the outer side of the fireproof sheet 3 to serve as a heat insulation layer, the outer surface of the fireproof sheet is flush with the wall surface, the nanometer vacuum heat insulation plate 4 is used for blocking the heat bridge effect of the steel girder flange, the indoor heat loss can be reduced, and the heat insulation performance of the wall body can be improved. Gaps between the steel beam 1 and the ALC wallboard 13 are filled through polyurethane foam 14, and gaps between the ALC wallboard 13 and the reinforced concrete floor slab 16 are filled through the polyurethane foam 14, so that a through-gap thermal bridge is blocked, and heat loss is reduced. The indoor surface of ALC wallboard 13 is provided with thick liquids screed-coat 7, is provided with sea Ji cloth 8 on the thick liquids screed-coat 7, and the ALC wallboard 13 outside is provided with bonding mortar 5, is provided with outer insulation system 6 on the bonding mortar 5. The slurry leveling layer 7 is stuck with the sea Ji cloth 8 as an inner decoration layer, so that the wall is waterproof and breathable, and condensation and dew formation in the wall are prevented; the external heat preservation system 6 is a heat preservation and decoration integrated external heat preservation structure or a thin plastering external heat preservation structure and the like according to the requirements.

The present utility model is not limited to the preferred embodiments, but is capable of modification and variation in detail, and other embodiments, such as those described above, of making various modifications and equivalents will fall within the spirit and scope of the present utility model.

Claims

1. An ALC wallboard and girder steel and concrete floor connection structure, its characterized in that: including girder steel (1), can dismantle on the top flange of girder steel (1) and be connected with pi shape spare (15), be provided with the locating hole that is used for pi shape spare (15) installation on the top flange of girder steel (1), the upper and lower both sides of girder steel (1) all are provided with angle steel (10), pi shape spare (15) can dismantle through angle steel (10) with ALC wallboard (13) and be connected, girder steel (1) can dismantle through angle steel (10) with ALC wallboard (13).

2. The ALC wall panel-to-steel girder and concrete floor slab connection structure according to claim 1, wherein: the lower flange of the steel beam (1) is detachably connected with the short side of the contacted angle steel (10) through a split bolt (9), the pi-shaped piece (15) is detachably connected with the short side of the contacted angle steel (10) through an expansion bolt (12), and the long sides of the two angle steels (10) are respectively detachably connected with the upper layer and the lower layer of the ALC wallboard (13) through the split bolt (9).

3. The ALC wall panel-to-steel girder and concrete floor slab connection structure according to claim 1, wherein: grooves are formed in the upper side and the lower side of the ALC wallboard (13), and filling treatment is carried out in the grooves by using repair mortar (11).

4. The ALC wall panel-to-steel girder and concrete floor slab connection structure according to claim 1, wherein: and a reinforced concrete floor slab (16) is poured between the steel beam (1) and the pi-shaped piece (15).

5. The ALC wall panel-to-steel girder and concrete floor slab connection structure according to claim 1, wherein: high-efficiency heat-insulating materials (2) are arranged on two sides of a web plate of the steel beam (1), a fireproof thin plate (3) is arranged on the high-efficiency heat-insulating materials (2), and a nanometer vacuum heat-insulating plate (4) is arranged on the fireproof thin plate (3).

6. The ALC wall panel-to-steel girder and concrete floor slab connection structure according to claim 1, wherein: gaps between the steel beam (1) and the ALC wallboard (13) are filled through polyurethane foam (14), and gaps between the ALC wallboard (13) and the reinforced concrete floor slab (16) are filled through the polyurethane foam (14).

7. The ALC wall panel-to-steel girder and concrete floor slab joint construction according to claim 6, wherein: the indoor surface of ALC wallboard (13) is provided with thick liquids screed-coat (7), is provided with on thick liquids screed-coat (7) and is provided with sea Ji cloth (8), and the ALC wallboard (13) outside is provided with bonding mortar (5), is provided with outer insulation system (6) on bonding mortar (5).

8. The ALC wall panel-to-steel girder and concrete floor slab joint construction according to claim 7, wherein: the external heat preservation system (6) adopts a heat preservation and decoration integrated external heat preservation structure or a thin plastering external heat preservation structure according to the requirement.

9. The ALC wall panel-to-steel girder and concrete floor slab connection structure according to claim 2, characterized in that: the length of the two angle steels (10) is half-plate width of the single ALC wallboard (13) and is arranged at intervals along the width direction of the ALC wallboard (13), and the split bolts (9), the angle steels (10), the expansion bolts (12) and the pi-shaped pieces (15) are all made of GFRP materials.