CN114991318A - Connecting device, steel concrete structure and steel concrete structure installation method - Google Patents
Connecting device, steel concrete structure and steel concrete structure installation method Download PDFInfo
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- CN114991318A CN114991318A CN202210667375.8A CN202210667375A CN114991318A CN 114991318 A CN114991318 A CN 114991318A CN 202210667375 A CN202210667375 A CN 202210667375A CN 114991318 A CN114991318 A CN 114991318A
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- 239000004567 concrete Substances 0.000 title claims abstract description 75
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 73
- 239000010959 steel Substances 0.000 title claims abstract description 73
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000009434 installation Methods 0.000 title claims abstract description 12
- 230000000994 depressogenic effect Effects 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 8
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 2
- 230000014759 maintenance of location Effects 0.000 claims 3
- 238000010008 shearing Methods 0.000 description 8
- 230000000452 restraining effect Effects 0.000 description 6
- 239000004568 cement Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 239000011374 ultra-high-performance concrete Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012994 photoredox catalyst Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The application relates to the technical field of constructional engineering, and relates to a connecting device, a steel concrete structure and a steel concrete structure installation method. The second limiting assembly is fixedly connected with the second side of the steel member and the concrete member, the second limiting assembly comprises a limiting space, the limiting space extends along the second direction, the second direction is crossed with the first direction, at least part of the first limiting assembly and the elastic part are arranged in the limiting space, when the connecting device is in a normal use stage, the volume modulus of the elastic part is constant, and at least one side of at least part of two sides in the second direction is abutted against the second limiting assembly through the elastic part. The application provides connecting device, steel concrete structure and steel concrete structure installation method, guarantees the gliding nature of first spacing subassembly in spacing space on the second direction, effectively reduces connecting device's the performance probability that fails that does not shear.
Description
Technical Field
The application relates to the technical field of constructional engineering, in particular to a connecting device, a steel concrete structure and a steel concrete structure installation method.
Background
Nowadays, steel concrete structures are widely used in the field of construction because they have the advantage of high compressive strength of concrete and the advantage of high tensile strength of steel. Today's steel concrete structures usually comprise steel members, concrete members and connecting means for connecting the steel members and the concrete members. In some parts or regions of the steel concrete structure (for example, regions where the steel concrete structure is subjected to a negative bending moment), the connecting device needs to have a pulling-out resistance and a non-shearing resistance, so that the steel member and the concrete member can relatively slide in a predetermined direction (i.e., the non-shearing resistance) on the premise of ensuring that the steel member and the concrete member cannot be separated (i.e., the pulling-out resistance), so as to prevent the concrete member from cracking.
However, it is difficult to predict the limit range of the shear stress to be applied to the connection device, so that the non-shear performance of the connection device is very likely to fail during the use of the steel reinforced concrete structure.
Disclosure of Invention
The application aims to provide a connecting device, a steel concrete structure and a steel concrete structure installation method, and solves the technical problem that the connecting device in the prior art is difficult to predict the limit range of the shear stress, so that the non-shearing performance of the connecting device is easy to lose efficacy in the use process of the steel concrete structure.
According to a first aspect of the present application there is provided a connection device for connecting a steel member and a concrete member, the connection device comprising:
a first stop assembly fixedly connected to a first one of the steel member and the concrete member, the first stop assembly extending in a first direction;
a second retaining assembly fixedly connected to a second of the steel member and the concrete member, the second retaining assembly including a retaining space extending in a second direction that intersects the first direction, at least a portion of the first retaining assembly being disposed within the retaining space;
the elastic part is arranged in the limiting space, when the connecting device is in a normal use stage, the volume modulus of the elastic part is constant, and at least one of two sides of the at least part of the connecting device in the second direction is abutted to the second limiting assembly through the elastic part.
Preferably, in a third direction, the length of the limiting space is equal to the sum of the length of the at least part and the tolerance length, and the third direction is perpendicular to the first direction and the second direction respectively;
the first direction is perpendicular to the second direction.
Preferably, the first limiting assembly is fixedly connected with the concrete member, and the second limiting assembly is fixedly connected with the steel member;
the spacing subassembly of second includes fixed part and lid portion of closing, the spacing subassembly of second via the fixed part with the steel member is connected, the fixed part includes first depressed part, lid portion of closing includes the second depressed part, the fixed part with lid portion of closing both edges the third direction butt joint makes first depressed part with both enclose to establish and form between the second depressed part spacing space.
Preferably, the first recessed portion includes a first card slot, the second recessed portion includes a second card slot, and the first card slot and the second card slot are oppositely arranged in the third direction;
first spacing subassembly includes extension and bulge of fixed connection each other, the extension is followed first direction extends, the bulge is in the one end card of third direction is located first draw-in groove, the bulge is in the other end card of third direction is located the second draw-in groove.
Preferably, when viewed in the first direction, the first recessed portion and the second recessed portion enclose the limiting space to form a rectangular shape.
Preferably, the number of the elastic parts is two, and the two elastic parts are respectively arranged on two sides of the at least part in the second direction.
Preferably, the limiting device further comprises a covering portion, the covering portion is arranged on both sides of the second limiting assembly in the first direction, the covering portion on any one side of the two sides of the second limiting assembly in the first direction can cover a preset gap, and the preset gap is a gap between the first limiting assembly and the second limiting assembly when the limiting space is observed along the first direction.
Preferably, the second limiting assembly comprises a first predetermined number of limiting spaces, and the first predetermined number of limiting spaces are arranged at intervals along the second direction;
the connecting device comprises a second preset number of the first limiting assemblies, and the first preset number is greater than or equal to the second preset number;
the volume modulus is 1000 MPa-1500 MPa.
According to a second aspect of the present application, there is provided a steel reinforced concrete structure, comprising the connecting device according to any one of the above technical solutions, thereby having all the beneficial technical effects of the connecting device, and the details are not repeated herein.
According to a third aspect of the present application, there is provided a method of installing a steel concrete structure, the steel concrete structure including a steel member and a connection device, the connection device including:
the first limiting assembly comprises an extension part and a protruding part, and the extension part extends along a first direction;
the second limiting component comprises a fixing part and a covering part, the fixing part comprises a first concave part, the covering part comprises a second concave part, the fixing part and the covering part are in butt joint, so that the first concave part and the second concave part surround to form a limiting space, and the limiting space extends along a second direction;
the area of the covering part is larger than that of the preset gap observed along the first direction, and the preset gap is a gap between the first limiting assembly and the second limiting assembly of the limiting space;
an elastic portion having a constant bulk modulus in a use state of the connection device;
which comprises the following steps:
a processing step of processing the first concave portion on the fixing portion and the second concave portion at a position of the covering portion corresponding to the first concave portion, and fixing the protruding portion at a predetermined position of the extending portion;
an assembling step of clamping one end of the protruding part to a first one of the first concave part and the second concave part, arranging the elastic part on two sides of the protruding part in the second direction, and butting the first concave part and the second concave part to enable a second one of the first concave part and the second concave part to be clamped with the other end of the protruding part;
welding; welding and fixing the fixing part and the steel member, and welding and fixing the fixing part and the covering part;
a blocking step, namely, the covering parts are pasted on two sides of the second limiting component in the first direction, and gaps between the first limiting component and the second limiting component in the limiting space are completely covered by the covering parts when observed along the first direction;
a pouring step of pouring concrete on the side of the steel member where the connecting device is located so that the connecting device is wrapped by the concrete.
Compared with the prior art, the beneficial effects of this application do:
the application provides a connecting device at least partial be in at least one side via in the ascending both sides of second side the elastic part with the spacing subassembly butt of second, the bulk modulus through the elastic part is invariable, make the elastic part be in the elastic deformation state when connecting device is in the normal use stage on the one hand, on the other hand passes through the bulk modulus's of elastic part invariable, can predict the limit range that the elastic part can bear shear stress, can adapt to the bulk modulus of adjustment elastic part according to the atress distribution condition that connecting device set up the position, guaranteed the gliding nature of first spacing subassembly in spacing space on the second direction, effectively reduced connecting device's the probability of the performance inefficacy that does not shear.
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic axial view of a steel concrete structure according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a connection device provided in an embodiment of the present application, viewed along a first direction;
fig. 3 is a schematic axial view of a fixing portion according to an embodiment of the present disclosure;
fig. 4 is a schematic axial structure diagram of a second limiting assembly according to an embodiment of the present disclosure;
FIG. 5 is a schematic view of an assembled structure of the connecting device according to the embodiment of the present application, as viewed along a first direction;
FIG. 6 is a schematic view of another assembly structure of the connecting device according to the embodiment of the present application, as viewed along a first direction;
fig. 7 is a schematic flow chart of a method for installing a rigid concrete structure according to an embodiment of the present disclosure.
Reference numerals:
111-a spacing space; 112-a cover part; 113-a stationary part; 113 a-a first card slot; 120-a second stop assembly; 121-an extension; 122-a projection; 130-an elastic portion; 140-a cover portion; 200-a steel member; 300-concrete member.
F1 — first direction; f2 — second direction; f3-third direction.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments.
The components of the embodiments of the present application, as generally described and illustrated in the figures herein, could be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The connecting device, the steel concrete structure, and the steel concrete structure installation method according to some embodiments of the present application are described below with reference to fig. 1 to 7.
Referring to fig. 1 to 6, a first aspect of an embodiment of the present application provides a connecting apparatus for connecting a steel member 200 and a concrete member 300. The connecting device includes a first stopper assembly, a second stopper assembly 120, and an elastic portion 130. Specifically, a first stop assembly is fixedly coupled to a first one of the steel member 200 and the concrete member 300, the first stop assembly extending in a first direction F1. A second restraining assembly 120 is fixedly coupled to a second one of the steel member 200 and the concrete member 300, the second restraining assembly 120 including a restraining space 111, the restraining space 111 extending in a second direction F2, the second direction F2 intersecting the first direction F1, at least a portion of the first restraining assembly being disposed within the restraining space 111. The elastic portion 130 is disposed in the position-limiting space 111, and when the connection device is in a normal use stage, the volume modulus of the elastic portion 130 is constant, and at least one of two sides of the at least part in the second direction F2 abuts against the second position-limiting component 120 via the elastic portion 130.
Based on the above-mentioned connecting device, at least one of the two sides of the at least part in the second direction F2 is abutted with the second limiting component 120 via the elastic part 130, and the volume modulus of the elastic part 130 is constant, so that on one hand, when the connecting device is in a normal use stage, the elastic part 130 is in an elastic deformation state, and on the other hand, the limit range of the shearing stress which can be borne by the elastic part 130 can be estimated through the constant volume modulus of the elastic part 130, the volume modulus of the elastic part 130 can be adaptively adjusted according to the stress distribution condition of the setting position of the connecting device, the slidability of the first limiting component in the limiting space 111 in the second direction F2 is ensured, and the failure probability of the non-shearing performance of the connecting device is effectively reduced.
Referring to fig. 1, there is shown an axial view of an example of a steel concrete structure in which a concrete member 300 of fig. 1 is transparently processed in order to facilitate the observation of the detailed structure of the above-described coupling device. Hereinafter, a structure in which the first stopper assembly is fixedly coupled to the concrete member 300 and the second stopper assembly 120 is fixedly coupled to the steel member 200 will be described as an example. However, without limitation, the first stop assembly may also be fixedly connected to the steel member and the second stop assembly may also be fixedly connected to the concrete member (not shown).
The following will describe by way of example the orientations shown in fig. 1 to 6, and the direction of F1 shown in the drawings is defined as a first direction F1, the direction of F2 is defined as a second direction F2, and the direction of F3 is defined as a third direction F3. Preferably, any two of the first direction F1, the second direction F2, and the third direction F3 are perpendicular.
In an embodiment, as shown in fig. 1, 5 and 6, the second stop assembly 120 may include a fixing portion 113 and a covering portion 112, and the second stop assembly 120 is connected to the steel member 200 via the fixing portion 113 so as to be engaged with the first stop assembly 111.
Preferably, the fixing portion 113 may include a first recess portion, and the covering portion 112 may include a second recess portion. When the fixing portion 113 and the covering portion 112 are abutted along the third direction F3, the first recessed portion and the second recessed portion are enclosed to form the limiting space 111.
Alternatively, both the fixing portion 113 and the covering portion 112 may be fixedly connected (e.g., welded) to improve the pullout resistance of both the steel member 200 and the concrete member 300 in the third direction F3.
Preferably, in the third direction F3, the length of the spacing space 111 is equal to the sum of the at least partial length and the tolerance length, and the length of the spacing space 111 can be understood as the distance between the lower surface of the first concave part and the upper surface of the second concave part in the third direction F3 when the fixing part 113 and the closing part 112 are butted along the third direction F3, so as to achieve the pull-out resistance of the connecting device in the third direction F3.
Preferably, the tolerance length may be 0 to 1mm to reduce the machining accuracy, so that the protrusion 122 described below is disposed in the first and second catching grooves 113a and 113 b described below.
Preferably, as shown in fig. 1 and fig. 2, as viewed in the first direction F1, the shape of the limiting space 111 formed by the first recessed portion and the second recessed portion is rectangular, so that on one hand, the difficulty of machining is effectively reduced, on the other hand, the contact area between the first recessed portion and the second recessed portion and the following protruding portion 122 is effectively increased, and the clamping stability of the first limiting component and the second limiting component 120 is improved.
Further, as shown in fig. 3, the first recessed portion may include a first engaging groove 113a for engaging with the protrusion 122, which effectively prevents the first position-limiting member from sliding relative to the second position-limiting member 120 along the first direction F1, so as to facilitate the installation and positioning of the first position-limiting member and the second position-limiting member 120 during the assembly of the steel concrete structure.
Alternatively, as shown in fig. 3, the first engaging groove 113a may be disposed on the lower surface of the first concave portion, and the first engaging groove 113a may extend along the second direction F2 to further ensure the slidability of the first position-limiting component in the position-limiting space 111 in the second direction F2.
Preferably, the depth of the first card slot 113a in the third direction F3 may be equal to a predetermined depth, and the predetermined depth may be greater than or equal to 4/5 times the width of the below-described protrusion 122 in the second direction F2, so as to ensure the card-locking stability between the first card slot 113a and the below-described protrusion 122.
Similarly, the second defective portion may include a second locking groove, and when the fixing portion 113 and the covering portion 112 are abutted along the third direction F3, the second locking groove may be disposed opposite to the second locking groove in the third direction F3, so as to improve the locking stability of the first position-limiting component relative to the second position-limiting component 120 in the first direction F1. The structure and arrangement form of the second card slot are similar to those of the second card slot, and are not described again.
In an embodiment, as shown in fig. 4, the first stop assembly may include an extension 121. The extension portion 121 may extend along the first direction F1 to increase a contact area between the concrete member 300 and the first position-limiting element, so as to increase tensile strength of the concrete member 300 and connection stability of the first position-limiting element and the concrete member 300.
Preferably, the extension portion 121 may be a steel bar extending in the first direction F1, and optionally, the extension portion 121 may be a finish-rolled twisted steel bar having a strength 2 to 3 times that of a normal steel bar having a uniform diameter, thereby further improving the tensile strength of the concrete member 300.
Preferably, as shown in fig. 4, the first position-limiting assembly may further include a protrusion 122, the protrusion 122 may be disposed at a predetermined position of the extension 121, and the protrusion 122 may be fixedly connected (e.g., welded) to the extension 121 for being engaged with the second position-limiting assembly 120.
Preferably, as shown in fig. 4, the protrusion 122 may be formed in a snap rectangle as viewed in the first direction F1, the snap rectangle extending in the third direction F3, and the extension 121 penetrates the protrusion 122 in the first direction F1. When the protrusion 122 is disposed in the space 111, the lower edge of the protrusion 122 is disposed in the first engaging groove 113a, and the upper edge of the protrusion 122 is disposed in the second engaging groove.
Preferably, the thickness of the protrusion 122 is equal to 1/3-1/2 of the width of the first locking groove 113a in the first direction F1, so as to facilitate the installation of the protrusion 122.
In an embodiment, as shown in fig. 5 and 6, the number of the elastic parts 130 may be two, and the two elastic parts 130 are respectively disposed on two sides of the at least part in the second direction F2, so as to ensure the slidability of the first position limiting assembly in the position limiting space 111 on the left and right sides in the second direction F2, and further improve the non-shearing resistance of the connecting device in the second direction F2.
Preferably, the bulk modulus of the elastic part 130 may be 1000MPa to 1500MP, such that the bulk modulus of the elastic part 130 is smaller than that of the concrete member 300, which effectively prevents the elastic part 130 from obstructing the sliding of the first position-limiting assembly in the position-limiting space 111 in the second direction F2.
Alternatively, as shown in fig. 5 and 6, the elastic part 130 may be a spring. However, without being limited thereto, the elastic portion 130 may also be other elastic materials, such as rubber, as long as the elastic portion 130 can satisfy the above bulk modulus.
In an embodiment, as shown in fig. 1 to 3, the second stopping assembly 120 may include a first predetermined number of the stopping spaces 111, the first predetermined number of the stopping spaces 111 being spaced apart in the second direction F2, so as to ensure uniformity of distribution of the non-shearing capability of the following steel concrete structure in the second direction F2.
Accordingly, as shown in fig. 1, the connecting device includes a second predetermined number of the first limiting assemblies, and the second predetermined number of the first limiting assemblies may be disposed in the second predetermined number of limiting spaces 111 at equal intervals, for example, the first predetermined number may be equal to the second predetermined number, so that the first limiting assemblies and the limiting spaces 111 are disposed in a one-to-one correspondence; for another example, the first predetermined number may be greater than the second predetermined number.
Furthermore, the connecting device may further include a cover portion 140, both sides of the second stopper assembly 120 in the first direction F1 are provided with the cover portion 140, and the cover portion 140 of either side of the second stopper assembly 120 in the first direction F1 may cover a predetermined gap between the first stopper assembly and the second stopper assembly 120 as viewed in the first direction F1 of the stopper space 111.
In other words, the area of the covering portion 140 is larger than the area of the predetermined gap when viewed along the first direction F1, and the predetermined gap is the gap between the first position-limiting component and the second position-limiting component 120 of the position-limiting space 111, so as to prevent the phenomenon that the connecting device fails in the non-shearing resistance due to the penetration of concrete into the predetermined gap during the pouring process of the concrete member 300 (for example, the pouring step described below).
Preferably, the covering portion 140 may be a plastic material, such as plastic cloth, adhesive tape, PC plastic sheet, and the like.
A second aspect of the embodiments of the present application further provides a steel concrete structure, including the connecting device according to any one of the above embodiments, thereby having all the beneficial technical effects of the connecting device, which are not described herein again.
Preferably, as shown in fig. 1, the steel concrete structure may further include the above-described steel structure and concrete structure.
Preferably, as shown in fig. 1, the steel structure may include a fitting plane, which may be a plane determined by both the first direction F1 and the second direction F2. The fixing portion 113 may be fixedly connected (e.g., welded) to the attachment plane.
Preferably, the concrete structure may be a cement-based composite material to further increase the tensile strength of the concrete.
Alternatively, the cement-based composite material may be Ultra-High Performance Concrete, abbreviated as UHPC (Ultra-High Performance Concrete).
Alternatively, the cement-based composite material may be high ductility concrete, abbreviated ECC.
Referring to fig. 7, a third aspect of embodiments of the present application also provides a steel concrete structure installation method that may be used to install the above-described connection device and/or the above-described steel concrete structure.
Specifically, the steel concrete structure installation method provided by the application comprises the following steps:
s10, processing the first concave portion on the fixing portion 113, processing the second concave portion on the covering portion 112 at a position corresponding to the first concave portion, and fixing the protruding portion 122 at a predetermined position of the extending portion 121.
Specifically, the processing of the first recess portion on the fixing portion 113 may include grinding the rectangular opening of the first recess portion and the first catching groove 113 a. Accordingly, machining the second recessed portion on the closure 112 may include grinding the rectangular opening and the second slot of the second recessed portion.
Preferably, the protrusion 122 may be welded at a predetermined position of the extension 121.
S20, assembling, namely, clamping one end of the protrusion 122 to a first one of the first and second concave parts, arranging the elastic part 130 on two sides of the protrusion 122 in the second direction F2, and butting the first and second concave parts so that a second one of the first and second concave parts is clamped to the other end of the protrusion 122.
Specifically, the upper edge of the protrusion 122 may be disposed in the second slot, the elastic portion 130 may be disposed on two sides of the protrusion 122 in the second direction F2, and the protrusion 122 may be inserted into the first slot 113a along with the covering portion 112, so as to assemble the connecting device.
S30 welding; fixing portion 113 is welded to steel member 200, and fixing portion 113 is welded to covering portion 112.
Preferably, if the elastic portion 130 is a spring, welding the spring to both the first and second position-limiting assemblies 120 may be further included.
Specifically, the spring rate can be designed quantitatively according to the requirement of the shear connection degree between the steel beam and the concrete slab.
S40 sealing step, adhering the cover portion 140 to both sides of the second position-limiting component 120 in the first direction F1, and viewing along the first direction F1, the gap between the first position-limiting component and the second position-limiting component 120 of the position-limiting space 111 is completely covered by the cover portion 140.
S50, casting concrete on the side of the steel member 200 where the connection device is located, so that the connection device is wrapped by the concrete.
Preferably, the method may further include S51 processing a casting mold, and disposing the casting mold on a side of the attachment plane where the connection device is located.
Further, the cement-based composite material is poured into the pouring mold.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. A connecting device for connecting a steel member and a concrete member, the connecting device comprising:
a first stop assembly fixedly connected to a first one of the steel member and the concrete member, the first stop assembly extending in a first direction;
a second retaining assembly fixedly connected to a second of the steel member and the concrete member, the second retaining assembly including a retaining space extending in a second direction that intersects the first direction, at least a portion of the first retaining assembly being disposed within the retaining space;
the elastic part is arranged in the limiting space, when the connecting device is in a normal use stage, the volume modulus of the elastic part is constant, and at least one of two sides of the at least part of the connecting device in the second direction is abutted to the second limiting assembly through the elastic part.
2. The connection device according to claim 1, wherein the length of the spacing space is equal to the sum of the length of the at least part and a tolerance length in a third direction, which is perpendicular to the first direction and the second direction, respectively;
the first direction is perpendicular to the second direction.
3. The connection device of claim 2, wherein the first stop assembly is fixedly connected to the concrete member and the second stop assembly is fixedly connected to the steel member;
the spacing subassembly of second includes fixed part and lid portion of closing, the spacing subassembly of second via the fixed part with the steel member is connected, the fixed part includes first depressed part, lid portion of closing includes the second depressed part, the fixed part with lid portion of closing both edges the third direction butt joint makes first depressed part with both enclose to establish and form between the second depressed part spacing space.
4. The connection device of claim 3,
the first recessed portion comprises a first card slot, the second recessed portion comprises a second card slot, and the first card slot and the second card slot are oppositely arranged in the third direction;
first spacing subassembly includes extension and bulge of fixed connection each other, the extension is followed first direction extends, the bulge is in the one end card of third direction is located first draw-in groove, the bulge is in the other end card of third direction is located the second draw-in groove.
5. The connecting device according to claim 3, wherein the shape of the limiting space defined by the first concave portion and the second concave portion is rectangular when viewed in the first direction.
6. The connecting device according to any one of claims 2 to 5, wherein the number of the elastic portions is two, and two elastic portions are respectively provided on both sides of the at least part in the second direction.
7. The connecting device according to claim 2, further comprising a covering portion, wherein both sides of the second stopper assembly in the first direction are provided with the covering portions, and the covering portion of the second stopper assembly on either side in the first direction can cover a predetermined gap between the first stopper assembly and the second stopper assembly as viewed in the first direction.
8. The connection device of claim 1, wherein the second retention assembly includes a first predetermined number of the retention spaces, the first predetermined number of the retention spaces being spaced apart along the second direction;
the connecting device comprises a second preset number of the first limiting assemblies, and the first preset number is greater than or equal to the second preset number;
the volume modulus is 1000 MPa-1500 MPa.
9. A steel concrete structure, characterized in that it comprises a connection device according to any one of claims 1 to 8.
10. A method of installing a steel concrete structure, the steel concrete structure comprising a steel member and a connection means, the connection means comprising:
the first limiting assembly comprises an extension part and a protruding part, and the extension part extends along a first direction;
the second limiting assembly comprises a fixing part and a covering part, the fixing part comprises a first concave part, the covering part comprises a second concave part, the fixing part and the covering part are in butt joint, so that a limiting space is formed by the first concave part and the second concave part in an enclosing mode, and the limiting space extends along a second direction;
the area of the covering part is larger than that of a preset gap observed along the first direction, and the preset gap is a gap between the first limiting assembly and the second limiting assembly of the limiting space;
an elastic portion having a constant bulk modulus in a use state of the connection device;
the installation method comprises the following steps:
a processing step of processing the first concave portion on the fixing portion and processing the second concave portion at a position of the covering portion corresponding to the first concave portion, and fixing the protruding portion at a predetermined position of the extending portion;
an assembling step of clamping one end of the protruding part to a first one of the first recessed part and the second recessed part, arranging the elastic part on two sides of the protruding part in the second direction, and butting the first recessed part and the second recessed part so that a second one of the first recessed part and the second recessed part is clamped with the other end of the protruding part;
welding; welding and fixing the fixing part and the steel member, and welding and fixing the fixing part and the covering part;
a blocking step, namely, the covering parts are pasted on two sides of the second limiting component in the first direction, and gaps between the first limiting component and the second limiting component in the limiting space are completely covered by the covering parts when observed along the first direction;
a pouring step of pouring concrete on the side of the steel member where the connecting device is located so that the connecting device is wrapped by the concrete.
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