CN212405501U - Stress-adjustable autoclaved aerated concrete plate mounting node - Google Patents
Stress-adjustable autoclaved aerated concrete plate mounting node Download PDFInfo
- Publication number
- CN212405501U CN212405501U CN202020156908.2U CN202020156908U CN212405501U CN 212405501 U CN212405501 U CN 212405501U CN 202020156908 U CN202020156908 U CN 202020156908U CN 212405501 U CN212405501 U CN 212405501U
- Authority
- CN
- China
- Prior art keywords
- aerated concrete
- autoclaved aerated
- nut
- gasket
- tie
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The stress-adjustable autoclaved aerated concrete plate mounting node comprises a first tie screw penetrating through a first autoclaved aerated concrete plate, a first expansion bolt positioned in a first building structure column or a shear wall, a first gasket, a first lengthened nut, a second tie screw penetrating through a second autoclaved aerated concrete plate, a second gasket, a second lengthened nut, a third tie screw penetrating through a third autoclaved aerated concrete plate, a third gasket, a third lengthened nut … …, an Nth tie screw penetrating through an Nth autoclaved aerated concrete plate, an Nth gasket and a common nut. The utility model discloses can prevent to evaporate the quality common fault that evaporates pressure aerated concrete wall fracture in the traditional structure, solve evaporate and to bond or the PU foamer carries out the wall fracture hidden danger problem that elastic connection exists through special bonding agent between autoclaved aerated concrete board and structure post, the shear force wall, can effectual prevention wall body crack, outer wall infiltration.
Description
Technical Field
The utility model relates to a building engineering technical field especially relates to a evaporate and press aerated concrete panel installation node that is used for concrete panel and structure post or shear force wall to be connected and is connected between the concrete panel.
Background
The autoclaved aerated concrete plate is a novel light porous green environment-friendly building material which takes cement, lime, silica sand and the like as main raw materials and is added with different quantities of steel bar meshes subjected to corrosion protection treatment according to structural requirements. The autoclaved aerated concrete slab with porous crystals is produced through high-temperature high-pressure steam curing and reaction, has the density lower than that of common cement materials, has excellent incomparable performances such as fire resistance, fire prevention, sound insulation, heat insulation and heat preservation, and meets the requirements of building industrialization and environmental protection.
In the prior art, the connection between the autoclaved aerated concrete plates and the building structure column or the shear wall mainly depends on a special adhesive or a PU foaming agent, the connection between the autoclaved aerated concrete plates mainly depends on the special adhesive, and the connection is carried out according to the specification: when the autoclaved aerated concrete plates are spliced, the plate seam width is not more than 5mm, the 5mm seam width has the problem of difficult pulp squeezing in actual construction, the fullness is difficult to control, and particularly, the autoclaved aerated concrete plates with the thickness of more than 200mm can be bonded, so that the problems of low tensile strength of bonded parts, untight bonding, easy cracking of walls and water leakage hidden trouble can occur in the construction process.
The invention discloses an integral large assembled plate (Chinese patent application publication No. CN 110306722A, referred to as a reference document later), which comprises a plurality of vertically arranged vertical prefabricated plates, wherein the vertical prefabricated plates are connected together through long lacing bars arranged on the inner/outer surfaces of the prefabricated plates, and the through long lacing bars are bonded with the prefabricated plates through adhesives. This solution has application value, and has been partially applied to real life, but it has the following problems:
1. the building structure column in real life is mainly divided into two forms: the utility model provides a be reinforced concrete post, the other kind is the post of steel construction, and in practical application, the integral big board of assembly among the comparison document can carry out better bonding with reinforced concrete post, but to the post of steel construction, the bonding of the integral big board of assembly is not firm, has the untight problem in connection position.
2. By utilizing the technical scheme provided by the comparison document, in the actual construction process, the large plate and the structural column are constructed together, which is not in accordance with the national standard, in the national standard process, the structural column is constructed firstly, and then the wall body is constructed, wherein the structures of the structural column and the beam play a role in supporting stress, and if the mode of constructing the large plate and the structural column together is adopted, the large plate also plays a role in stress, so that the disorder of the whole stress system of the building is caused.
3. The big board in the comparison file is assembled, and in order to guarantee the wholeness of the big board, the big board needs to be fixed through auxiliary parts such as reinforcing frames and board end connecting pieces, so that the production cost is improved.
4. The large plate assembly in the comparison document is completed in a factory, the whole large plate is extremely heavy in weight, large mechanical equipment needs to be matched in the construction process, and the construction cost is high.
5. The large plate in the comparison document is generally applied to an outer wall with higher performance requirement in a building due to higher manufacturing cost, and other concrete plates with lower manufacturing cost can be selected for an inner wall in the building.
Disclosure of Invention
An object of the utility model is to provide a stress adjustable evaporates presses aerated concrete panel installation node to solve the problem that provides among the above-mentioned background art.
In order to achieve the above purpose, the utility model adopts the technical scheme that the stress-adjustable autoclaved aerated concrete plate mounting node comprises a first tie screw penetrating through a first autoclaved aerated concrete plate, a first expansion bolt positioned in a first building structure column or a shear wall, a first gasket, a first lengthened nut, a second tie screw penetrating through a second autoclaved aerated concrete plate, a second gasket, a second lengthened nut, a third tie screw penetrating through a third autoclaved aerated concrete plate, a third gasket, a third lengthened nut … … penetrating through an Nth tie screw of the Nth autoclaved aerated concrete plate, an Nth gasket, a common nut (N is more than or equal to 2, and N is an integer);
one end of a first tie screw is connected with a first expansion bolt, the other end of the first tie screw is connected with one end of a first gasket and one end of a first lengthening nut, the connecting position of a first autoclaved aerated concrete slab and a first building structure column or a shear wall is coated with a special adhesive or a PU foaming agent, the other end of the first lengthening nut is connected with one end of a second tie screw, the other end of the second tie screw is connected with one end of a second gasket and one end of a second lengthening nut, the connecting position of the first autoclaved aerated concrete slab and the second autoclaved aerated concrete slab is coated with the special adhesive, the other end of the second lengthening nut is connected with a third tie screw … …, an Nth tie screw is connected with an Nth gasket and a common nut, and the connecting position of a (N-1) th autoclaved aerated concrete slab and an Nth autoclaved aerated concrete slab is coated with the special adhesive;
the first and second tie screws … … are inclined, and the first and second tie screws … … are on the same straight line.
As a preferred technical scheme, the stress-adjustable autoclaved aerated concrete plate mounting node comprises a first tie screw penetrating through a first autoclaved aerated concrete plate, a first expansion bolt positioned in a sixth building structure column or a shear wall, a first gasket, a first common nut, a second expansion bolt positioned in the first autoclaved aerated concrete plate, a second tie screw penetrating through a second autoclaved aerated concrete plate, a second gasket, a second common nut … … positioned in an nth expansion bolt of an (N-1) th autoclaved aerated concrete plate, an nth tie screw penetrating through the nth autoclaved aerated concrete plate, an nth gasket, an nth common nut (N is more than or equal to 2, and N is an integer);
one end of a first tie screw is connected with a first expansion bolt, the other end of the first tie screw is connected with a first gasket and a first common nut, the connecting position of a first autoclaved aerated concrete slab and a sixth building structure column or a shear wall is coated with a special adhesive or a PU foaming agent, one end of a second tie screw is connected with a second expansion bolt, the other end of the second tie screw is connected with a second gasket and a second common nut, the connecting position of the first autoclaved aerated concrete slab and the second autoclaved aerated concrete slab is coated with a special adhesive … …, one end of an Nth tie screw is connected with an Nth expansion bolt, the other end of the Nth tie screw is connected with an Nth gasket and an Nth common nut, and the connecting position of a (N-1) th autoclaved aerated concrete slab and an Nth autoclaved aerated concrete slab is coated with a special adhesive;
the first and second tie screws … … are parallel to each other.
As a preferred technical scheme, the stress-adjustable autoclaved aerated concrete plate mounting node comprises a first tie screw penetrating through a first autoclaved aerated concrete plate, a first expansion bolt positioned in a seventh building structure column or a shear wall, a first gasket, a lengthened bending nut, a second tie screw penetrating through a second autoclaved aerated concrete plate, a second gasket, a first lengthened nut, a third tie screw … … penetrating through a third autoclaved aerated concrete plate, an Nth tie screw penetrating through an Nth autoclaved aerated concrete plate, an Nth gasket, and a common nut (N is more than or equal to 3, and N is an integer);
one end of the first tie screw is connected with the first expansion bolt, the other end of the first tie screw is connected with the first gasket and the lengthened bending nut, the lengthened bending nut is connected with the second tie screw, the second tie screw is connected with the second gasket and the first lengthened nut, and the first lengthened nut is connected with the third tie screw … …, the Nth tie screw is connected with the Nth gasket and the common nut.
Further, the first tie screw is inclined, and the second and third tie screws … … are horizontal.
Furthermore, the lengthened bending nut is connected with the first tie screw rod and the second tie screw rod, and the lengthened bending nut is bent.
As a preferred technical scheme, the stress-adjustable autoclaved aerated concrete plate mounting node comprises a first tie screw penetrating through a first autoclaved aerated concrete plate, a first expansion bolt positioned in a seventh building structure column or a shear wall, a first gasket, a lengthened bending nut, a second tie screw penetrating through a second autoclaved aerated concrete plate, a second gasket and a common nut;
one end of the first tie screw is connected with the first expansion bolt, the other end of the first tie screw is connected with the first gasket and the lengthened bent nut, the lengthened bent nut is connected with the second tie screw, and the second tie screw is connected with the second gasket and the common nut.
As a preferred technical scheme, the stress-adjustable autoclaved aerated concrete plate mounting node comprises a first tie screw penetrating through a first autoclaved aerated concrete plate, a first expansion bolt positioned in an eighth building structure column or a shear wall, a first gasket, a first common nut, a first connecting rod penetrating through a second autoclaved aerated concrete plate, a second gasket, a second common nut and a second connecting rod mounted in the first autoclaved aerated concrete plate;
the first expansion bolt is connected to one end of the first tie screw, the first gasket and the lengthened bent nut are connected to the other end of the first tie screw, one end of the first connecting rod is connected with the second connecting rod, and the second gasket and the second common nut are connected to the other end of the first connecting rod.
Further, the first connecting rod and the second connecting rod are perpendicular to each other.
Furthermore, one end of the first connecting rod is provided with a round hole, and the other end of the first connecting rod is provided with threads.
Furthermore, a first through hole for installing a second connecting rod, a second through hole for installing the first connecting rod and a first tie hole for installing a first connecting screw rod are formed in the first autoclaved aerated concrete slab;
the first tie hole is parallel to the second communication hole, and the first communication hole is communicated with the second communication hole and is vertical to the second communication hole.
To sum up, the utility model has the advantages that: the utility model provides a stress adjustable evaporates presses aerated concrete panel installation node can be applicable to most building structure post, has solved the untight problem of steel structure post connection among the comparison file, in addition the utility model discloses the technical scheme who adopts can prevent the general quality of evaporating pressure aerated concrete wall fracture in traditional structure, has solved and has adhered through special adhesive between evaporating pressure aerated concrete slab and structure post, the shear force wall or the wall fracture hidden danger problem that PU foamer carries out elastic connection and exist, has greatly improved the ability that interior outer wall splits, anti-seismic performance and outer wall anti-wind load, can effectually prevent wall crack, outer wall infiltration, has accelerated evaporating pressure aerated concrete panel and has used widely on residential building; the installation node provided by the utility model follows the national standard process, the structure column is firstly built, then the autoclaved aerated concrete plate is built, and the autoclaved aerated concrete plate is not stressed after installation, thereby conforming to the national standard construction standard and improving the safety; the installation node provided by the utility model can splice concrete plates on the construction site, the weight of a single autoclaved aerated concrete plate is not large, the installation node can be moved by constructors, and other auxiliary connecting pieces do not need to be installed in the field installation process, thereby reducing the construction cost and the production cost; the integral cost of the autoclaved aerated concrete plate mounting node provided by the utility model is low, so that the autoclaved aerated concrete plate mounting node can be applied to the construction of the inner wall of a building, and the applicability is increased; specifically, each autoclaved aerated concrete plate in the utility model corresponds to a group of tie screw rods and nuts, so that the pre-tightening force adjustment of the autoclaved aerated concrete plate at the designated position can be realized, and the problem that cracks are formed on the surface of part of autoclaved aerated concrete plates with poor production quality under the same pre-tightening force is solved; the matching concave and convex design of the two connecting ends of the autoclaved aerated concrete slabs can enable one autoclaved aerated concrete slab to be embedded into the other autoclaved aerated concrete slab, so that the two autoclaved aerated concrete slabs are tightly attached, the surface of a wall body formed after splicing is kept flat, and in addition, the convex and concave can increase the effective bonding area between the two autoclaved aerated concrete slabs, so that the bonding is firmer.
Drawings
FIG. 1 is an exploded view of the connection between two autoclaved aerated concrete slabs in example 1;
FIG. 2 is a left side view of the autoclaved aerated concrete slab of example 1;
FIG. 3 is a right side view of the autoclaved aerated concrete slab of example 1;
FIG. 4 is an implementation scenario of the autoclaved aerated concrete slab in example 1;
FIG. 5 is an implementation scenario of the autoclaved aerated concrete slab in example 2;
FIG. 6 is an implementation scenario of the autoclaved aerated concrete slab in example 3;
FIG. 7 is an implementation scenario of the autoclaved aerated concrete slab in example 4;
FIG. 8 is an implementation scenario of the autoclaved aerated concrete slab in example 5;
FIG. 9 is an exploded view of FIG. 8;
FIG. 10 is an implementation scenario of the autoclaved aerated concrete slab in example 6;
FIG. 11 is a partial exploded view of the joining method of the autoclaved aerated concrete slabs in example 6;
FIG. 12 is a schematic structural view of an autoclaved aerated concrete slab in example 6;
FIG. 13 is a cross-sectional view showing one practical connection in example 6;
FIG. 14 is a cross-sectional view of another practical attachment in example 6;
FIG. 15 shows an embodiment of the autoclaved aerated concrete slab in example 7;
FIG. 16 is an exploded view of FIG. 15;
FIG. 17 is a cross-sectional view of FIG. 15;
FIG. 18 is a schematic orthographic projection of a plane;
FIG. 19 is a first embodiment of example 8;
FIG. 20 is a second embodiment of example 8;
FIG. 21 is a third embodiment of example 8;
FIG. 22 is a fourth embodiment of example 8;
fig. 23 is an implementation scenario of the autoclaved aerated concrete slab in example 9;
FIG. 24 is a cross-sectional view of FIG. 23;
FIG. 25 is a schematic structural view of an autoclaved aerated concrete slab in example 9;
FIG. 26 is a view of one connection of the first connecting rod to the second connecting rod;
FIG. 27 is another connection of a first connecting rod to a second connecting rod.
Detailed Description
Embodiments of the invention will be described in further detail with reference to the drawings, it being understood that the examples are illustrative only and should not be taken as limiting the invention, and that all of the features disclosed in the examples or all of the steps in any method or process disclosed herein can be combined in any way, except for mutually exclusive features and/or steps.
Example 1, see figures 1-4.
The utility model provides a stress adjustable evaporates presses aerated concrete panel installation node for will evaporate and press aerated concrete panel and building structure post or shear force wall to be connected, building structure post in the real life mainly divide into two kinds of forms: firstly, the reinforced concrete post, secondly the post of steel construction, the utility model provides an evaporate and press aerated concrete panel installation node mainly used will evaporate and press aerated concrete panel and building structure post to carry out zonulae occludens, and adjacent evaporate and press aerated concrete panel to carry out zonulae occludens for solve in the prior art wall panel and between wallboard and the structure post wall crack, the outer wall scheduling problem that leaks that the bonding mortar plumpness is not enough to lead to, in this embodiment, give a unilateral building structure post evaporate and press aerated concrete panel implementation scene: a first building structure column 82 is arranged between the ceiling 80 and the floor 81, and the stress-adjustable autoclaved aerated concrete plate mounting node comprises a first tie screw 21 penetrating through a first autoclaved aerated concrete plate 12, a first expansion bolt 60 positioned in the first building structure column 82, a first gasket 30, a first lengthened nut 40, a second tie screw 22 penetrating through a second autoclaved aerated concrete plate 13, a second gasket 10 and a common nut 50;
one end of the first tie screw 21 is connected with the first expansion bolt 60, the other end of the first tie screw 21 is connected with one end of the first gasket 30 and one end of the first lengthening nut 40, the connecting position of the first autoclaved aerated concrete slab 12 and the first building structure column 82 is coated with a special adhesive or a PU foaming agent, the other end of the first lengthening nut 40 is connected with one end of the second tie screw 22, the other end of the second tie screw 22 is connected with the second gasket 10 and the common nut 50, and the connecting position of the first autoclaved aerated concrete slab 12 and the second autoclaved aerated concrete slab 13 is coated with the special adhesive.
The special binder is called as 'hard link' in the field, has good crack resistance, the PU foaming agent is called as 'soft link' in the field, has good anti-seismic performance, and the specific selection of the special binder and the PU foaming agent is selected according to the actual situation.
Preferably, although the single-sided building structure column in this embodiment only connects two autoclaved aerated concrete slabs, but not limiting the number of autoclaved aerated concrete slabs, the number of autoclaved aerated concrete slabs is selected according to actual construction conditions, in some other embodiments, a stress-adjustable autoclaved aerated concrete slab mounting node comprises a first tie screw penetrating through a first autoclaved aerated concrete slab, a first expansion bolt located in the first building structure column or the shear wall, a first gasket, a first extension nut, a second tie screw penetrating through a second autoclaved aerated concrete slab, a second gasket, a second extension nut, a third tie screw penetrating through a third autoclaved aerated concrete slab, a third gasket, a third extension nut … … penetrating through an nth tie screw, an nth gasket of the nth autoclaved aerated concrete slab, the nut is a common nut, wherein N is an integer and is greater than or equal to 2, and when N is 2, the common nut is an implementation scenario provided by the embodiment;
the special adhesive is coated at the connecting position of the first autoclaved aerated concrete slab and the second autoclaved aerated concrete slab, the special adhesive is coated at the other end of the second lengthened nut, the third drawknot screw … … is connected with the Nth drawknot screw to connect the Nth gasket and the common nut, and the special adhesive is coated at the connecting position of the (N-1) th autoclaved aerated concrete slab and the Nth autoclaved aerated concrete slab.
Preferably, in the installation process, if the autoclaved aerated concrete plates need to be connected continuously subsequently, a lengthened nut is selected, if the autoclaved aerated concrete plates do not need to be connected subsequently, namely the autoclaved aerated concrete plate is the last autoclaved aerated concrete plate, a common nut is selected, the pre-tightening force between the adjacent autoclaved aerated concrete plates can be adjusted by rotating the nut at the autoclaved aerated concrete plate at the specified position, for example, in the embodiment, the pre-tightening force between the first autoclaved aerated concrete plate 12 and the first building structure column 82 can be adjusted by rotating the first lengthened nut 40, the pre-tightening force between the second autoclaved aerated concrete plate 13 and the first autoclaved aerated concrete plate 12 can be adjusted by rotating the common nut 50, so that the special adhesive or the PU foaming agent between the first autoclaved aerated concrete plate and the first autoclaved aerated concrete plate is filled, and the pre-tightening force adjusting mode only adjusts the pre-tightening force of the autoclaved aerated concrete plates at the adjusting position, the pre-tightening force of the autoclaved aerated concrete slabs at other positions cannot be influenced, constructors can accurately adjust the pre-tightening force at different positions according to actual construction conditions, and cracks formed on the surfaces of part of the autoclaved aerated concrete slabs with poor production quality under the same pre-tightening force are avoided.
Preferably, the gaskets (the first gasket 30 and the second gasket 10 … …) can increase the contact area between the nut (the first lengthened nut 40 … … and the common nut 50) and the autoclaved aerated concrete slab, and avoid the phenomenon that the nut with overlarge pressure is embedded into the autoclaved aerated concrete slab when a worker rotates the nut.
Preferably, in this embodiment, a connection hole is formed in the first building structure column 82 for installing the first expansion bolt 60, and the first expansion bolt 60 is preferably a metal expansion bolt, so as to ensure sufficient connection strength between the first building structure column 82 and the first tie screw 21, and in some other embodiments, the first tie screw 21 and the first building structure column 82 are cast and integrally formed simultaneously, so that the first expansion bolt 60 does not need to be disposed in the first building structure column 82.
Preferably, for convenience of production and construction, the first autoclaved aerated concrete slab, the second autoclaved aerated concrete slab 13 … … and the nth autoclaved aerated concrete slab are completely the same, the second tie screw and the third tie screw … … and the nth tie screw are completely the same, the first lengthening nut, the second lengthening nut and the nth lengthening nut are completely the same, the first gasket and the second gasket … … and the nth gasket are completely the same, the autoclaved aerated concrete slab, the lengthening nut and the gasket are completely the same, and comprise the same shape and the same structure, the tie screws are completely the same, and comprise the same length and the same thread pitch, furthermore, as shown in the attached drawings 2-3, the left end and the right end of the first autoclaved aerated concrete slab 12 are paired, the middle part of the left end of the first autoclaved aerated concrete slab 12 is convex, the middle part of the right end of the first autoclaved aerated concrete slab 12 is concave, when the first autoclaved aerated concrete slab 12 is connected with the second autoclaved aerated concrete slab 13, the second autoclaved aerated concrete plate 13 can be embedded into the first autoclaved aerated concrete plate 12 under the action of a pre-tightening force, so that the two autoclaved aerated concrete plates are tightly attached, the surface of a wall body formed after splicing is smooth, and in addition, the bulges and the depressions at the left end and the right end of the first autoclaved aerated concrete plate 12 can increase the effective bonding area between the two autoclaved aerated concrete plates, so that the bonding is firmer.
Preferably, the length of the first tie screw 21 is greater than the length of the subsequent second tie screw 22, since the first tie screw 21 needs to be connected with the first expansion bolt 60 in the first building structure column 82.
Preferably, a first tie hole 11 penetrating through the left and right is formed in the protruding and recessed positions of the first autoclaved aerated concrete slab 12, and the first tie screw 21 penetrates through the first tie hole 11.
Preferably, if only one tie screw is arranged in one autoclaved aerated concrete slab, the mounting angle of the autoclaved aerated concrete slab cannot be limited, so that one autoclaved aerated concrete slab is connected through at least two tie screws, specifically, in the embodiment, at least two first tie holes 11 are arranged on the first autoclaved aerated concrete slab 12, and the mounted first autoclaved aerated concrete slab 12 is perpendicular to the floor 81 and the ceiling 80.
Preferably, the two first tie holes 11 are located at a height of about one third and a height of about two thirds of the first autoclaved aerated concrete slab 12.
Preferably, the left end and the right end of the first autoclaved aerated concrete slab 12 are respectively provided with a first groove 14 and a second groove 15 at the positions of the first tie holes 11, the first groove 14 and the second groove 15 can respectively accommodate a first lengthening nut 40 and a first gasket 30, generally, the axial radius of the first gasket 30 is larger than that of the first lengthening nut 40, and therefore, the area of the second groove 15 is larger than that of the first groove 14;
when the first autoclaved aerated concrete slab 12 and the second autoclaved aerated concrete slab 13 are spliced together, the second groove 15 in the first autoclaved aerated concrete slab 12 is communicated with the first groove 14 in the second autoclaved aerated concrete slab 13, and the first lengthening nut 40 can be accommodated in a space formed by the first groove 14 and the second groove 15, so that the first lengthening nut 40 is ensured not to influence the assembly of the adjacent first autoclaved aerated concrete slab 12 and the second autoclaved aerated concrete slab 13.
Preferably, after the final autoclaved aerated concrete slab is assembled, the common nut 50 therein is received in the second groove 15 therein.
Preferably, the connection mode or the construction mode of other positions, for example, evaporate the bonding of pressing aerated concrete slab upper and lower extreme and ceiling 80 and floor 81, evaporate the wallboard installation at the aerated concrete slab front, the back, for conventional technical means, not the utility model discloses the place of protection.
Example 2, see figure 5.
In this embodiment, an implementation scenario of installing autoclaved aerated concrete slabs between two building structure columns is provided: a first building structure column 82 and a second building structure column 83 are arranged between the ceiling 80 and the floor 81, a side of the first building structure column 82, which is provided with the first autoclaved aerated concrete plate 12, is defined as a first installation area, a side of the second building structure column 83, which faces the first building structure column 82, is defined as a second installation area, and the orthographic projection of the first installation area and the orthographic projection of the second installation area are defined by edges of planes and a set of straight lines perpendicular to the planes, as shown in fig. 18.
When the autoclaved aerated concrete plates are installed, a first installation area of a first building structure column 82 is selected to start installation of a first autoclaved aerated concrete plate 12, a second autoclaved aerated concrete plate 13 … … and an Nth autoclaved aerated concrete plate, when the Nth autoclaved aerated concrete plate is installed, the minimum distance between a second building structure column 83 and the Nth autoclaved aerated concrete plate is 10-30mm, and then material filling is carried out on a width gap, so that the first building structure column 82 and the second building structure column 83 are completely connected together. In the present embodiment, N is 3.
Other embodiments of this example are the same as example 1.
Example 3, see figure 6.
In this embodiment, an implementation scenario of installing an "L-shaped" autoclaved aerated concrete slab between two building structure columns is given: a first building structure column 82 and a third building structure column 84 are arranged between the ceiling 80 and the floor 81, and define that the side where the first autoclaved aerated concrete slab 12 is installed on the first building structure column 82 is a first installation area, and the side where the (N +1) th autoclaved aerated concrete slab is installed on the third building structure column 84 is a third installation area. In the implementation scenario provided by this embodiment, the orthographic projection of the first installation area and the orthographic projection of the third installation area are perpendicular to each other.
When the autoclaved aerated concrete plates are installed, a first installation area of a first building structure column 82 is selected to start to install a first autoclaved aerated concrete plate, a second autoclaved aerated concrete plate … … and an Nth autoclaved aerated concrete plate, a third installation area of a third building structure column 84 is selected to start to install a (N +1) th autoclaved aerated concrete plate, a (N +2) th autoclaved aerated concrete plate … … and an Mth autoclaved aerated concrete plate (M is more than N, M is an integer), the Nth autoclaved aerated concrete plate props against the Mth autoclaved aerated concrete plate, and an Mth tie screw in the Mth autoclaved aerated concrete plate penetrates through the Nth autoclaved aerated concrete.
In this embodiment, N is 3 and M is 6.
It should be noted that in order to stagger the tie bolts inside the first, second and third autoclaved aerated concrete panels and the fourth, fifth and sixth autoclaved aerated concrete panels, the tie holes inside the first, second and third autoclaved aerated concrete panels should be arranged at different heights from the tie holes inside the fourth, fifth and sixth autoclaved aerated concrete panels.
Other embodiments of this example are the same as example 1.
Example 4, see figure 7.
In this embodiment, an implementation scenario of installing a "T-shaped" autoclaved aerated concrete slab between two building structure columns is given: a first building structure column 82 and a fourth building structure column 85 are arranged between the ceiling 80 and the floor 81, and define that the side of the first building structure column 82 where the first autoclaved aerated concrete slab 12 is installed is a first installation area, and the side of the fourth building structure column 85 where the (N +1) th autoclaved aerated concrete slab is installed is a fourth installation area. In the implementation scenario provided by this embodiment, the orthographic projection of the first installation area and the orthographic projection of the third installation area are perpendicular to each other.
When the autoclaved aerated concrete plates are installed, a first installation area of a first building structure column 82 is selected to start to install a first autoclaved aerated concrete plate, a second autoclaved aerated concrete plate …, an Xth autoclaved aerated concrete plate …, an Nth autoclaved aerated concrete plate (N is more than X and is more than or equal to 2, X is an integer), a fourth installation area of a fourth building structure column 85 is selected to start to install a (N +1) th autoclaved aerated concrete plate, a (N +2) th autoclaved aerated concrete plate … …, an Mth autoclaved aerated concrete plate (M is more than N and M is an integer), the Xth autoclaved aerated concrete plate props against the Mth autoclaved aerated concrete plate, and an Mth tie screw rod in the Mth autoclaved aerated concrete plate penetrates through the Xth autoclaved aerated concrete, so that the connection mode can greatly improve the connection strength of a junction position.
In this embodiment, N is 3, X is 2, and M is 6.
It should be noted that the tie holes in the autoclaved aerated concrete slabs are similar to those in example 3, the tie holes in the first, second and third autoclaved aerated concrete slabs should be arranged at different heights from those in the fourth, fifth and sixth autoclaved aerated concrete slabs, and other embodiments of this embodiment are the same as those in example 1.
Example 5, refer to fig. 8 and 9.
In this embodiment, a technical solution is provided for solving the problem that the wall surface of the narrow wall buttress (in this embodiment, the fifth autoclaved aerated concrete slab 18 with a width less than 600 mm) in the connection door and window position is prone to cracking: a stress-adjustable autoclaved aerated concrete slab mounting node comprises a fifth tie screw 20 penetrating through a fifth autoclaved aerated concrete slab 18, a first expansion bolt 60 positioned in a fifth building structure column 86, a first gasket 30 and a common nut 50;
the fifth tie screw 20 is connected with the first expansion bolt 60, the other end of the fifth tie screw 20 is connected with the first gasket 30 and the common nut 50, one side of the fifth autoclaved aerated concrete slab 18 is connected with the fifth building structure column 86, the other side of the fifth autoclaved aerated concrete slab 18 is connected with the door 70, the connecting position of the fifth autoclaved aerated concrete slab 18 and the fifth building structure column 86 is coated with a special adhesive or a PU foaming agent, and the pretightening force between the fifth autoclaved aerated concrete slab 18 and the fifth building structure column 86 is applied through the fifth tie screw 20 and the common nut 50, so that the problem that a narrow wall pile is prone to cracking can be solved.
Example 6, refer to fig. 10-14.
In example 1, the first tie screw 21 and the second tie screw 22 in the first autoclaved aerated concrete slab 12 and the second autoclaved aerated concrete slab 13 are horizontally arranged, and the tie screws on the upper side and the lower side are parallel to each other, so that the transverse pre-tightening force between the first autoclaved aerated concrete slab 12 and the first building structure column 82 and between the adjacent autoclaved aerated concrete slabs can be adjusted.
In this embodiment, a sixth building structure column 87 is disposed between the ceiling 80 and the floor 81, a first expansion bolt 60 is installed in the sixth building structure column 87, a first tie hole 11 is disposed in the first autoclaved aerated concrete slab 12, a first tie screw 21 having one end connected to the first expansion bolt 60 is disposed in the first tie hole 11, and a first gasket 30 and a common nut 50 are connected to the other end of the first tie screw 21, wherein the first tie screw 21 is not horizontally disposed, and the width of the gap between the first autoclaved aerated concrete slab 12 and the ceiling 80 or the floor 81 and the stress between the first autoclaved aerated concrete slab 12 and the ceiling 80 or the floor 81 can be adjusted by rotating the common nut 50, for example, in the construction of a bathroom wall, the water resistance of the wall near the floor 81 is much more important than the water resistance of the wall near the ceiling 80, so that the first autoclaved aerated concrete slab 12 can apply a downward response to the floor 81 by adjusting the nut 50 Force, to saturate the dedicated adhesive between them.
Preferably, a mounting hole 71 is formed in the first autoclaved aerated concrete slab 12, a second expansion bolt can be mounted in the mounting hole 71, and the second expansion bolt can be connected with the second autoclaved aerated concrete slab 13 … … through a second tie screw, a second gasket and a common nut, and the Nth expansion bolt can be connected with the Nth autoclaved aerated concrete slab through an Nth tie screw, an Nth gasket and a common nut.
The first autoclaved aerated concrete plate 12 and the second autoclaved aerated concrete plate 13 … … are completely the same as the Nth autoclaved aerated concrete plate.
Preferably, two mounting holes 71 and two first tie holes 11 are symmetrically arranged in the first autoclaved aerated concrete plate 12 from top to bottom, and referring to fig. 13 and 14, two embodiments of mounting nodes with opposite tie directions are provided.
Preferably, the first tie hole 11 in the first autoclaved aerated concrete slab 12 is provided with a counter bore 72 at one side where the first gasket 30 and the common nut 50 are installed, and the counter bore 72 is used for accommodating the first gasket 30 and the common nut 50, so that two adjacent autoclaved aerated concrete slabs can be completely spliced together.
Other embodiments of this example are the same as example 1.
The implementation scenario of this embodiment may be the scenarios in embodiments 1 to 5.
Example 7, see fig. 15-17.
The function of this embodiment is similar to that of embodiment 6, but the technical solution adopted is different, and compared with the technical solution of embodiment 6, the technical solution provided by this embodiment does not require installing expansion bolts many times, and is more convenient in construction, in this embodiment, a seventh building structure column 88 is provided between a ceiling 80 and a floor 81, the seventh building structure column 88 is provided with a first autoclaved aerated concrete plate 12, the seventh building structure column 88 is internally provided with a first expansion bolt 60, the first autoclaved aerated concrete plate 12 is internally provided with a first tied hole 11, the first tied hole 11 is internally provided with a first tied screw 21 with one end connected with the expansion bolt 60, the other end of the first tied screw 21 is connected with an elongated bent nut 41 and a gasket, the first autoclaved aerated concrete plate 12 is connected with a second autoclaved aerated concrete plate 13, the second autoclaved aerated concrete plate 13 is internally provided with a second tied hole 16, the lengthened bent nut 41 is connected with a second tie screw 17, and the second tie screw 17 penetrates through a second tie hole 16 to be connected with a common nut 50 and a gasket;
note that, unlike the first elongated nut 40 in example 1, the elongated bent nut 41 in the first autoclaved aerated concrete slab 12 in this embodiment is bent inside, and the elongated bent nut 41 in example 1 is a straight elongated nut without being bent inside.
Preferably, the first knotting screw 21 is not arranged horizontally, and the second knotting screw 17 is arranged horizontally.
Preferably, the technical scheme for connecting the second autoclaved aerated concrete slab 13 with the subsequent autoclaved aerated concrete slabs is the same as that in example 1, and is not described again, and other embodiments of this embodiment are also the same as those in example 1.
The implementation scenario of this embodiment may be the scenarios in embodiments 1 to 5.
Example 8, refer to fig. 19-22.
The function of this embodiment is similar to that of embodiments 6 and 7, but the technical scheme adopted is different, in embodiment 6, an installation hole 71 needs to be reserved in each autoclaved aerated concrete slab, and an expansion bolt needs to be driven in, but because the strength of the autoclaved aerated concrete slab is low, the autoclaved aerated concrete slab is easily damaged in the process of drilling and installing the bolt, and the rejection rate is high.
In this embodiment, the specific implementation is the same as that in example 1, except that the corresponding tie screws in each autoclaved aerated concrete slab are inclined (the first tie screw in the first autoclaved aerated concrete slab and the second tie screw … … in the second autoclaved aerated concrete slab), referring to fig. 19 and fig. 20, the tie screws on the upper and lower sides in each autoclaved aerated concrete slab are parallel to each other, and the connection manner in fig. 19 is adopted to facilitate adjusting the stress between the autoclaved aerated concrete slab and the ceiling 80 and filling mortar into the gap between the autoclaved aerated concrete slab and the floor 81; the connection mode shown in the attached figure 20 is adopted to conveniently increase the stress between the autoclaved aerated concrete slab and the floor 81, so that the special adhesive is full and is suitable for being applied to the bathroom wall body for water proofing; referring to fig. 21, the tie screws on the upper and lower sides inside the autoclaved aerated concrete slab are symmetrical to each other, so that the stress between the autoclaved aerated concrete slab and the ceiling 80 and the stress between the autoclaved aerated concrete slab and the floor 81 can be adjusted.
Preferably, referring to fig. 22, each autoclaved aerated concrete slab is provided with at least one inclined tie screw and at least one horizontal tie screw, and the horizontal tie screws can enhance the pre-tightening force between the autoclaved aerated concrete slabs and the building structure column and the pre-tightening force between the adjacent autoclaved aerated concrete slabs and prevent the dislocation between the adjacent autoclaved aerated concrete slabs.
The implementation scenario of this embodiment may be the scenarios in embodiments 1 to 5.
Example 9, refer to fig. 23-27.
The technical scheme and the technical effect that can reach that this embodiment adopts are similar with embodiment 6 to can solve the easy damaged problem in connection position behind the autoclaved aerated concrete slab pours into expansion bolts into.
In the embodiment, an eighth building structure column 89 is arranged between the ceiling 80 and the floor 81, a first expansion bolt 60 is installed in the eighth building structure column 89, a first tie hole 11 is arranged in the first autoclaved aerated concrete slab 12, the first tie hole 11 is inclined, a first tie screw 21 with one end connected with the first expansion bolt 60 is arranged in the first tie hole 11, the other end of the first tie screw 21 is connected with a first gasket 30 and a common nut 50, the width of a seam between the first autoclaved aerated concrete slab 12 and the ceiling 80 or the floor 81 and the stress between the first autoclaved aerated concrete slab 12 and the ceiling 80 or the floor 81 can be adjusted by rotating the common nut 50, the first autoclaved aerated concrete slab 12 is connected with a second autoclaved aerated concrete slab 13, a first through hole 61 is arranged in the first autoclaved aerated concrete slab 12, a second through hole 62 is arranged in the first through hole 61, the first through hole 61 is perpendicular to the second through hole 62, the second through hole 62 is parallel to the first tie hole 11, a first connecting rod 51 is installed in the second through hole 62, one end of the first connecting rod 51 is provided with a round hole, the other end of the first connecting rod 51 is provided with threads, the round hole end of the first connecting rod 51 is inserted into the second through hole 62, a second connecting rod 52 is installed in the first through hole 61, the second connecting rod 52 is inserted into the round hole of the first connecting rod 51, a second tie hole 16 is arranged in the second autoclaved aerated concrete slab 13, and the threaded end of the first connecting rod 51 penetrates through the second tie hole 16 to be connected with a second gasket and a common nut.
The first autoclaved aerated concrete plate 12 and the second autoclaved aerated concrete plate 13 … … are completely the same as the Nth autoclaved aerated concrete plate.
Preferably, two sets of the first tie holes 11, the first communicating holes 61 and the second communicating holes 62 may be provided, and similarly to embodiment 8, the first tie holes 11, the first communicating holes 61 and the second communicating holes 62 which are provided up and down are also parallel to each other or symmetrical to each other.
Preferably, referring to fig. 27, the spacers (first spacer, second spacer … …) may be replaced with the metal plate 53.
Other embodiments of this example are the same as example 6.
The implementation scenario of this embodiment may be the scenarios in embodiments 1 to 5.
The above is only the concrete embodiment of the utility model, but the protection scope of the utility model is not limited to this, and any change or replacement that does not come into mind through the creative work should be covered within the protection scope of the utility model, therefore, the protection scope of the utility model should be subject to the protection scope defined by the claims.
Claims (10)
1. The stress-adjustable autoclaved aerated concrete plate mounting node is characterized by comprising a first tie screw penetrating through a first autoclaved aerated concrete plate, a first expansion bolt positioned in a first building structure column or a shear wall, a first gasket, a first lengthened nut, a second tie screw penetrating through a second autoclaved aerated concrete plate, a second gasket, a second lengthened nut, a third tie screw penetrating through a third autoclaved aerated concrete plate, a third gasket, a third lengthened nut … …, an N-th tie screw penetrating through an N-th autoclaved aerated concrete plate, an N-th gasket, a common nut, wherein N is more than or equal to 2, and N is an integer;
one end of a first tie screw is connected with a first expansion bolt, the other end of the first tie screw is connected with one end of a first gasket and one end of a first lengthening nut, the connecting position of a first autoclaved aerated concrete slab and a first building structure column or a shear wall is coated with a special adhesive or a PU foaming agent, the other end of the first lengthening nut is connected with one end of a second tie screw, the other end of the second tie screw is connected with one end of a second gasket and one end of a second lengthening nut, the connecting position of the first autoclaved aerated concrete slab and the second autoclaved aerated concrete slab is coated with the special adhesive, the other end of the second lengthening nut is connected with a third tie screw … …, an Nth tie screw is connected with an Nth gasket and a common nut, and the connecting position of a (N-1) th autoclaved aerated concrete slab and an Nth autoclaved aerated concrete slab is coated with the special adhesive;
the first and second tie screws … … are inclined, and the first and second tie screws … … are on the same straight line.
2. The stress-adjustable autoclaved aerated concrete plate mounting node is characterized by comprising a first tie screw penetrating through a first autoclaved aerated concrete plate, a first expansion bolt positioned in a sixth building structure column or a shear wall, a first gasket, a first common nut, a second expansion bolt positioned in the first autoclaved aerated concrete plate, a second tie screw penetrating through the second autoclaved aerated concrete plate, a second gasket, a second common nut … … positioned in an Nth expansion bolt of an (N-1) th autoclaved aerated concrete plate, an Nth tie screw penetrating through the Nth autoclaved aerated concrete plate, an Nth gasket, an Nth common nut, wherein N is more than or equal to 2, and N is an integer;
one end of a first tie screw is connected with a first expansion bolt, the other end of the first tie screw is connected with a first gasket and a first common nut, the connecting position of a first autoclaved aerated concrete slab and a sixth building structure column or a shear wall is coated with a special adhesive or a PU foaming agent, one end of a second tie screw is connected with a second expansion bolt, the other end of the second tie screw is connected with a second gasket and a second common nut, the connecting position of the first autoclaved aerated concrete slab and the second autoclaved aerated concrete slab is coated with a special adhesive … …, one end of an Nth tie screw is connected with an Nth expansion bolt, the other end of the Nth tie screw is connected with an Nth gasket and an Nth common nut, and the connecting position of a (N-1) th autoclaved aerated concrete slab and an Nth autoclaved aerated concrete slab is coated with a special adhesive;
the first and second tie screws … … are parallel to each other.
3. The stress-adjustable autoclaved aerated concrete plate mounting node is characterized by comprising a first tie screw penetrating through a first autoclaved aerated concrete plate, a first expansion bolt positioned in a seventh building structure column or a shear wall, a first gasket, a lengthened bending nut, a second tie screw penetrating through a second autoclaved aerated concrete plate, a second gasket, a first lengthened nut, a third tie screw … … penetrating through a third autoclaved aerated concrete plate, an Nth tie screw penetrating through an Nth autoclaved aerated concrete plate, an Nth gasket and a common nut, wherein N is more than or equal to 3, and N is an integer;
one end of the first tie screw is connected with the first expansion bolt, the other end of the first tie screw is connected with the first gasket and the lengthened bending nut, the lengthened bending nut is connected with the second tie screw, the second tie screw is connected with the second gasket and the first lengthened nut, and the first lengthened nut is connected with the third tie screw … …, the Nth tie screw is connected with the Nth gasket and the common nut.
4. The autoclaved aerated concrete slab mounting node with adjustable stress as claimed in claim 3, wherein the first tie screw is inclined, and the second and third tie screws … … are horizontal.
5. The autoclaved aerated concrete slab mounting node with adjustable stress as set forth in claim 3, wherein the lengthened bending nut is connected with the first tie screw and the second tie screw, and the lengthened bending nut is bent inside.
6. The stress-adjustable autoclaved aerated concrete plate mounting node is characterized by comprising a first tie screw penetrating through a first autoclaved aerated concrete plate, a first expansion bolt positioned in a seventh building structure column or a shear wall, a first gasket, a lengthened bending nut, a second tie screw penetrating through a second autoclaved aerated concrete plate, a second gasket and a common nut;
one end of the first tie screw is connected with the first expansion bolt, the other end of the first tie screw is connected with the first gasket and the lengthened bent nut, the lengthened bent nut is connected with the second tie screw, and the second tie screw is connected with the second gasket and the common nut.
7. The stress-adjustable autoclaved aerated concrete plate mounting node is characterized by comprising a first tie screw penetrating through a first autoclaved aerated concrete plate, a first expansion bolt, a first gasket, a first common nut, a first connecting rod penetrating through a second autoclaved aerated concrete plate, a second gasket, a second common nut and a second connecting rod mounted in the first autoclaved aerated concrete plate, wherein the first expansion bolt, the first gasket, the first common nut and the second connecting rod are positioned in an eighth building structure column or a shear wall;
the first expansion bolt is connected to one end of the first tie screw, the first gasket and the lengthened bent nut are connected to the other end of the first tie screw, one end of the first connecting rod is connected with the second connecting rod, and the second gasket and the second common nut are connected to the other end of the first connecting rod.
8. The autoclaved aerated concrete slab mounting node with adjustable stress as set forth in claim 7, wherein the first connecting rod and the second connecting rod are perpendicular to each other.
9. The autoclaved aerated concrete slab mounting node with adjustable stress as set forth in claim 7, wherein the first connecting rod is provided with a round hole at one end and a screw thread at the other end.
10. The stress-adjustable autoclaved aerated concrete slab mounting node as claimed in claim 7, wherein a first connecting hole for mounting a second connecting rod is arranged in the first autoclaved aerated concrete slab, a second connecting hole for mounting the first connecting rod is arranged, and a first tie hole for mounting the first connecting screw rod is arranged;
the first tie hole is parallel to the second communication hole, and the first communication hole is communicated with the second communication hole and is vertical to the second communication hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020156908.2U CN212405501U (en) | 2020-02-07 | 2020-02-07 | Stress-adjustable autoclaved aerated concrete plate mounting node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020156908.2U CN212405501U (en) | 2020-02-07 | 2020-02-07 | Stress-adjustable autoclaved aerated concrete plate mounting node |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212405501U true CN212405501U (en) | 2021-01-26 |
Family
ID=74400490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020156908.2U Active CN212405501U (en) | 2020-02-07 | 2020-02-07 | Stress-adjustable autoclaved aerated concrete plate mounting node |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212405501U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116044186A (en) * | 2023-03-02 | 2023-05-02 | 北京城建建设工程有限公司 | Narrow area high and large slat installation construction structure and method |
-
2020
- 2020-02-07 CN CN202020156908.2U patent/CN212405501U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116044186A (en) * | 2023-03-02 | 2023-05-02 | 北京城建建设工程有限公司 | Narrow area high and large slat installation construction structure and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206655314U (en) | The board-like assembling building systems of DGC | |
| CN107119826B (en) | Autoclaved aerated concrete plate filling wall and column connecting node structure and construction method thereof | |
| CN212405501U (en) | Stress-adjustable autoclaved aerated concrete plate mounting node | |
| US4691490A (en) | Cementitious modular panel and panel assembly for building walls and method of construction | |
| CN105804239A (en) | L-shaped light-steel frame, L-shaped light-steel assembled composite wallboard and installation method of L-shaped light-steel assembled composite wallboard | |
| CN111173147A (en) | Evaporate and press aerated concrete panel installation node | |
| CN211816995U (en) | Evaporate and press aerated concrete panel installation node | |
| CN111734016A (en) | Anti-cracking inner partition wall applied to assembled steel structure and construction method thereof | |
| CN110284725B (en) | Reinforced concrete frame node beam hogging moment assembly steel structure and reinforcing method thereof | |
| CN111749364A (en) | Assembly type composite wall based on C-shaped steel and construction method thereof | |
| CN115506488B (en) | Method for connecting prefabricated sandwich heat-insulating peripheral retaining wall | |
| EP2672038A2 (en) | A building seismic strengthening system | |
| CN101586369A (en) | Combined wall having both pliability and hardness | |
| CN210049379U (en) | Steel concrete combined frame column assembly type structure system | |
| CN211646711U (en) | Steel construction building and steel column cold bridge prevention structure | |
| CN110670758A (en) | Fabricated steel structure building based on fiber reinforced clad wood substrate and construction method | |
| CN210421381U (en) | Evaporate and press whole house of aerated concrete slab | |
| CN211229117U (en) | Assembled composite floor and node structure | |
| CN219196419U (en) | External wall board composite heat-insulation curtain wall system | |
| CN110984609B (en) | Method for improving earthquake resistance of building masonry | |
| CN220247286U (en) | Bidirectional hidden connecting node of precast concrete heat-insulating wallboard and steel frame | |
| CN212896868U (en) | Integral light partition plate | |
| CN213143405U (en) | Connecting box for prefabricated building and upper and lower prefabricated part connecting structure | |
| CN210597865U (en) | Light composite wall board with skeleton in core layer | |
| CN210049380U (en) | Steel concrete combined frame column and reinforced concrete frame column combined assembly type structure system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |