CN111236689A - Steel structure node reinforcing method for assembly type building - Google Patents
Steel structure node reinforcing method for assembly type building Download PDFInfo
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- CN111236689A CN111236689A CN202010176575.4A CN202010176575A CN111236689A CN 111236689 A CN111236689 A CN 111236689A CN 202010176575 A CN202010176575 A CN 202010176575A CN 111236689 A CN111236689 A CN 111236689A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
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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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
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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
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
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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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2406—Connection nodes
Abstract
The invention discloses a steel structure node reinforcing method of an assembly type building, belonging to the field of building engineering, which can realize supporting and protecting the node of a steel structure beam column by an outsourcing reinforcing mode, and utilizes the structural characteristic to enable the received external force to reversely act on a reinforcing member by a conversion feedback mode to improve the overall stability of the reinforcing member, wherein a multi-effect force ball is innovatively introduced to promote the structure of the reinforcing member to tend to be stable on one hand, facilitate the dispersion of the external force and the integration of a plurality of reinforcing members simultaneously, on the other hand, utilize the self characteristic, adopt the mode of absorbing energy firstly and then decomposing the external force to effectively decompose the external force transmitted by the reinforcing member and promote the external force to convert and feedback, thereby not only meeting the high strength and high stability required by the node reinforcement, but also having excellent shock absorption and buffering effect and effectively reinforcing the node of the steel structure beam column by means of, the node strength of the fabricated building is obviously improved, and further the building safety is improved and the service life is prolonged.
Description
Technical Field
The invention relates to the field of constructional engineering, in particular to a method for reinforcing a steel structure node of an assembly type building.
Background
The fabricated building is a building which is formed by transferring a large amount of field operation work in the traditional construction mode to a factory, processing and manufacturing building components and accessories (such as floor slabs, wall slabs, stairs, balconies and the like) in the factory, transporting the components and accessories to a building construction site, and assembling and installing the components and the accessories on the site in a reliable connection mode.
The prefabricated building mainly comprises a prefabricated concrete structure, a steel structure, a modern wood structure building and the like, and is a representative of a modern industrial production mode due to the adoption of standardized design, factory production, assembly construction, informatization management and intelligent application.
The node is the position that building structure beam column links to each other, is the key pivot component of beam column biography power, and node destruction will lead to whole structural damage, consequently, very heavily look at node design in structural design to all follow "strong node weak member" design principle, must guarantee at first that the node is stronger than members such as beam column when designing, guarantee that the node can not destroy earlier than beam column member. Due to the change of the using function of the building, the improvement of the earthquake-resistant requirement of the building, the old building and the like, the building repair and reinforcement, particularly the earthquake-resistant reinforcement of the building, are very necessary, and the repair, reinforcement and earthquake-resistant reinforcement of beam-column joints in the building are particularly important. Because the node is the connecting part of the beam column rod piece and the column is often connected with a plurality of beams at the node part, the node area reinforcement and repair construction is very difficult, at present, no mature reinforcement method and reinforcement technology exist, and the node reinforcement is an important problem in building reinforcement. At present, reinforcing technologies of externally-bonded carbon fiber cloth, externally-bonded steel plates and externally-bonded carbon fiber plates are developed at home and abroad to reinforce nodes, but in general, the reinforcing effect is not ideal, the construction is very troublesome, the nodes are not yet mature to be applied, and particularly, a good reinforcing method does not exist for steel structure nodes of fabricated buildings at present.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a steel structure node reinforcing method of an assembly type building, which can support and protect the steel structure beam column node in an external reinforcing mode, and utilize the structural characteristics to enable the received external force to reversely act on a reinforcing member in a conversion feedback mode to improve the overall stability of the reinforcing member, wherein a multi-effect force ball is innovatively introduced to promote the structure of the reinforcing member to tend to be stable, facilitate the external force dispersion and the simultaneous integration of a plurality of reinforcing members into a whole, and utilize the self characteristics to effectively dissolve the external force transmitted by the reinforcing member and promote the external force to convert and feedback by adopting a mode of absorbing energy firstly and then decomposing the external force, thereby meeting the high strength and high stability required by node reinforcement, having excellent damping and buffering effects and effectively reinforcing the steel structure beam column node in a rigid-flexible mode, the node strength of the fabricated building is obviously improved, and further the building safety is improved and the service life is prolonged.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A steel structure node reinforcing method of an assembly type building comprises the following steps:
s1, calculating and evaluating the stress at the node of the steel structure beam column according to the building design drawing, determining the reinforcement grade, and starting to prepare a related reinforcement material;
s2, prefabricating a plurality of external reinforcing members with corresponding sizes, performing assembly processes such as welding of related parts and the like, and reserving proper hole sites at the nodes of the steel structure beam column;
s3, pre-installing external reinforcing members in different directions at the nodes of the steel structure beam column, screwing high-strength bolts for anchoring, and filling structural adhesive with the thickness of 2-5mm between the nodes and the external reinforcing members;
s4, embedding magnetic edge strips at the edges of the outward-wrapped reinforcing members, and pointing by using latex cement;
s5, wrapping and binding a plurality of external reinforcing members by the number of at least three steel band hoops, installing by a pneumatic packer, and permanently sealing and fixing by a packing buckle.
Furthermore, the external reinforcing member comprises a foundation equilateral angle steel, an embedded shaped block is welded on the outer side wall of the foundation equilateral angle steel, a plurality of multi-effect force balls which are contacted with each other are welded on the outer side wall of the embedded shaped block, a plurality of unequal force transmission rods are embedded in the inner end of the embedded shaped block, the unequal force transmission rods are distributed in the direction perpendicular to the contact points of the multi-effect force balls and the embedded shaped block, two ends of the unequal force transmission rods are respectively connected with the foundation equilateral angle steel and the multi-effect force balls, the external reinforcing member mainly plays a role in reinforcing and supporting the node of the steel structure beam column through the foundation equilateral angle steel, the embedded shaped block plays a role in shaping the foundation equilateral angle steel to assist in supporting the foundation equilateral angle steel, the multi-effect force balls feed back the deformation force of the foundation equilateral angle steel and the embedded shaped block to the embedded shaped block through conversion according to the unique stress characteristic of the spheres, and simultaneously, the unequal force transmission rods also directly transmit the, the auxiliary supporting and shaping are carried out, namely, the external force which promotes the base equal angle steel and the embedded shaping block to deform is utilized to act on the shaping in reverse, so that the partial offset of the external force is indirectly realized, and the reinforcing effect is improved.
Further, pleiotropic power ball is by outer to interior absorb energy layer, commentaries on classics power layer and the essence inner core of including in proper order, the absorb energy layer is the embedded elasticity sponge core of nylon intermediate layer, and elasticity sponge core infiltration has the thick liquid of shearing, the layer of changing force adopts elasticity soft materials, the solid spheroid that the essence inner core adopted the alloy construction steel to make, the absorb energy layer has fine energy-absorbing characteristic, and the nylon intermediate layer plays the guard action to the elasticity sponge core, and the elasticity sponge core has high-elastic cushioning effect on the one hand, and on the other hand can permeate the thick liquid of shearing, utilizes the characteristics that the atress hardens to absorb most external force, and the layer of changing force then plays good transition cushioning effect, and the essence inner core plays good supporting role as the skeleton.
Furthermore, a plurality of pairs of arc rotating force rods which are symmetrically distributed are embedded in the rotating force layer, a plurality of gradient cushion blocks which are uniformly distributed are fixedly connected to the area, corresponding to the arc rotating force rods, on the outer side wall of the substantial inner core, the length of each gradient cushion block is gradually reduced, wherein the longest gradual change cushion block is fixedly connected with one end of the arc rotating force rod and corresponds to the contact point of the upper and lower pair of multi-effect force balls, an assistant force ball is arranged on one side of the rotating layer away from the contact point with the embedded shaped block and is fixedly connected with the other ends of the arc rotating rods, the external force transmitted by the adjacent multi-effect force balls can be transmitted to the auxiliary force ball from the contact point through the transmission of the arc rotating force rod and applied to the multi-effect force ball at the intersection point of the extension lines of the corresponding unequal force transmission rods, the external force is transmitted and changed, and then the external force is utilized, and in turn, the unequal force transmission rods are assisted to act on the setting action of the base equal-edge angle steel and the embedded shaping block.
Further, the shape of the outer edge of the embedded shaped block is an inward-concave arc shape, the foundation equilateral angle steel and the embedded shaped block are made of stainless steel and aluminum alloy materials respectively, the structural shape characteristic of the embedded shaped block can meet the requirement that the foundation equilateral angle steel changes the direction of external force when deformed under stress and is converted into inward extrusion force, the foundation equilateral angle steel is shaped reversely, a good offsetting effect can be achieved, the foundation equilateral angle steel serves as a reinforcing part of a main support and must have good strength and long service life, the embedded shaped block is made of a light aluminum alloy material, the integral quality is light when the shape is met, and construction and installation are facilitated.
Further, equal fixedly connected with is the epitaxial magnetic path that the four corners distributes on the both sides wall that the angle steel is close to the node for the base, the magnetism strake adopts ferromagnetic metal material to make, and four magnetism strakes enclose into a sealed square frame around four epitaxial magnetic paths, the inside and outside both sides of square frame form structure glue film and latex cement layer respectively, conveniently carry out isolation protection to the structure glue film, and can carry out interim fixed based on the effect of magnetic force absorption, need not to expend time and fix for the efficiency of construction.
Further, be equipped with the rebar net rack that welds on the equilateral angle steel lateral wall of basis in the square frame, the rebar net rack is made through the mode of horizontal reinforcing bar and vertical steel bar welding or ligature steel wire, and the rebar net rack improves joint strength through the mode of burying the structure glue film, is favorable to linking as an organic whole with equilateral angle steel of steel construction beam column node and basis, improves the reinforcement effect through more inseparable combination.
Further, assorted wearing groove has been seted up along the direction of steel band hoop to the pleiotropic power ball, and steel band hoop alternates the pleiotropic power ball around a plurality of outsourcing reinforcements, and the mode that the steel band hoop alternates wearing groove can be connected a plurality of outsourcing reinforcements as a whole through the mode that centers on the one hand for whole reinforcement effect promotes, and on the other hand can link between a plurality of pleiotropic power balls, makes things convenient for the dispersion and the transmission of power, with whole zero of exogenic force.
Further, wear the trough of belt and adopt the mode of pouring into mortar or waterproof glue to seal wearing the trough of belt after interlude and fixed good steel band hoop, on the one hand with the firm lock of steel band hoop in wearing the trough of belt, protect it, on the other hand can be better link together steel band hoop through wearing the trough of belt and multi-effect power ball, form the dispersion and the transmission of a whole convenient power.
Further, the strength of the steel band hoop is more than 800MPa, the thickness of the steel band hoop is 0.5-1.5mm, and the material of the steel band hoop is any one of a bluing steel band, a stainless steel band, galvanized steel or a carbon fiber band.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) the scheme can realize supporting and protecting the node of the steel structure beam column by an outsourcing reinforcing mode, and the external force received by the structure characteristic is reversely acted on the reinforcing member by a conversion feedback mode, the integral stability of the reinforcing member is improved, wherein, the multi-effect force ball is innovatively introduced, on one hand, the structure of the reinforcing part is promoted to tend to be stable, and simultaneously, the external force is conveniently dispersed and a plurality of reinforcing parts are combined into a whole, on the other hand, the external force transmitted by the reinforcing part is effectively dissolved by utilizing the self characteristics and adopting the mode of absorbing energy firstly and then decomposing the external force, and the external force is promoted to carry out conversion feedback, thereby not only meeting the high strength and high stability of the node reinforcement requirement, meanwhile, the excellent damping and buffering effect is achieved, the steel structure beam column node is reinforced effectively in a rigid-flexible mode, the node strength of the fabricated building is improved remarkably, and therefore the building safety is improved, and the service life is prolonged.
(2) The external packing reinforcing member comprises a foundation equilateral angle steel, an embedded shaped block is welded on the outer side wall of the foundation equilateral angle steel, a plurality of multi-effect force balls which are contacted with each other are welded on the outer side wall of the embedded shaped block, a plurality of unequal force transmission rods are embedded in the inner end of the embedded shaped block and are distributed in the direction vertical to the contact points of the multi-effect force balls and the embedded shaped block, two ends of the unequal force transmission rods are respectively connected with the foundation equilateral angle steel and the multi-effect force balls, the external packing reinforcing member mainly plays a role in reinforcing and supporting the nodes of the steel structure beam column through the foundation equilateral angle steel, the embedded shaped block plays a role in shaping the foundation equilateral angle steel to assist the supporting of the foundation equilateral angle steel, the multi-effect force balls feed back the deformation force of the foundation equilateral angle steel and the deformation force of the embedded shaped block to the embedded shaped block through conversion according to the unique stress characteristic of the sphere, and simultaneously, the auxiliary supporting and shaping are carried out, namely, the external force which promotes the base equal angle steel and the embedded shaping block to deform is utilized to act on the shaping in reverse, so that the partial offset of the external force is indirectly realized, and the reinforcing effect is improved.
(3) Multieffect power ball is from outer to interior in proper order including the energy absorption layer, change power layer and essence inner core, the energy absorption layer is the embedded elasticity sponge core of nylon intermediate layer, and elasticity sponge core infiltration has the shearing to glue thick liquid, change the power layer and adopt elasticity soft materials, the solid spheroid that the essence inner core adopted the alloy structure steel to make, the energy absorption layer has fine energy-absorbing characteristic, the nylon intermediate layer plays the guard action to the elasticity sponge core, the elasticity sponge core has high-elastic cushioning effect on the one hand, on the other hand can permeate the shearing and glue thick liquid, the most external force can be absorbed to the characteristics that utilize the atress sclerosis, the rotation layer then plays good transition cushioning effect, the essence inner core plays good supporting role as the skeleton.
(4) A plurality of pairs of arc rotating force rods which are symmetrically distributed are embedded in the rotating force layer, a plurality of evenly distributed gradual change cushion blocks are fixedly connected to the area of the outer side wall of the inner core corresponding to the arc rotating force rods, the lengths of the gradual change cushion blocks are gradually reduced, wherein the longest gradual change cushion block is fixedly connected with one end of the arc rotating rod and corresponds to the contact point of a pair of multi-effect force balls, the side of the rotating layer far away from the contact point with the embedded shaped block is provided with a force assisting ball which is fixedly connected with the other ends of the arc rotating rods, the external force transmitted by the adjacent multi-effect force balls can be transmitted to the auxiliary force ball from the contact point through the transmission of the arc rotating force rod and applied to the multi-effect force ball at the intersection point of the extension lines of the corresponding unequal force transmission rods, the external force is transmitted and changed, and then the external force is utilized, and in turn, the unequal force transmission rods are assisted to act on the setting action of the base equal-edge angle steel and the embedded shaping block.
(5) The shape of embedded shape piece outside edge is the arc of indent, and basis equilateral angle steel and embedded shape piece adopt stainless steel and aluminum alloy material to make respectively, the structural shape characteristic of embedded shape piece can satisfy basis equilateral angle steel with the external force diversion when the atress is deformed, turn into inward extrusion force, reverse the setting of acting on basis equilateral angle steel, can play good offset, basis equilateral angle steel is as the reinforcement member of main support, must possess good intensity and permanent life, and embedded shape piece adopts comparatively light aluminum alloy material, whole quality is lighter when satisfying the setting, be convenient for construction and installation.
(6) Equal fixedly connected with is the epitaxial magnetic path that the four corners distributes on the both sides wall that base equilateral angle is close to the node, and the magnetism strake adopts ferromagnetic metal material to make, and four magnetism strakes enclose into a sealed square frame around four epitaxial magnetic paths, and the inside and outside both sides of square frame form structure glue film and latex cement layer respectively, conveniently carry out isolation protection to the structure glue film, and can carry out interim fixed based on the effect of magnetic force absorption, need not to spend time and fix for the efficiency of construction.
(7) Be equipped with the reinforcing bar rack that welds on the equilateral angle steel lateral wall of basis in the square frame, the reinforcing bar rack is made through the mode of horizontal reinforcing bar and vertical steel bar welding or ligature steel wire, and the reinforcing bar rack improves joint strength through the mode of burying the structure glue film, is favorable to linking steel construction beam column node and the equilateral angle steel of basis as an organic whole, improves through more inseparable combination and consolidates the effect.
(8) The matched band-pass groove has been seted up to the pleiotropic power ball along the direction of steel band hoop, and the steel band hoop alternates the pleiotropic power ball around a plurality of outsourcing reinforcements, and the steel band hoop alternates the mode of band-pass groove and can be connected a plurality of outsourcing reinforcements as a whole through the mode that centers on one hand for whole reinforcement effect promotes, and on the other hand can link up between a plurality of pleiotropic power balls, makes things convenient for the dispersion and the transmission of power, with whole zero of exogenic power.
(9) Wear the trough of belt and adopt the mode of pouring into mortar or waterproof glue to seal the trough of belt after interlude and fixed good steel band hoop, on the one hand with the firm lock of steel band hoop in wearing the trough of belt, protect it, on the other hand can be better link together the steel band hoop through wearing the trough of belt and multi-effect power ball, form the dispersion and the transmission of a whole convenient force.
Drawings
FIG. 1 is a schematic flow diagram of the present invention;
FIG. 2 is a schematic view of the structure at a node of the present invention;
FIG. 3 is a side view of the outer reinforcing member of the present invention;
FIG. 4 is a rear view of the outer reinforcing member of the present invention;
fig. 5 is a schematic structural view of the pleiotropic force ball of the present invention.
The reference numbers in the figures illustrate:
1 foundation equilateral angle steel, 2 embedded shaped blocks, 3 multi-effect force balls, 301 energy absorption layers, 302 force rotation layers, 303 substantial inner cores, 4 steel band hoops, 5 high-strength bolts, 6 magnetic edge strips, 7 penetrating belt grooves, 8 unequal force transmission rods, 9 epitaxial magnetic blocks, 10 steel bar net racks, 11 arc force rotation rods, 12 gradual change cushion blocks and 13 force assisting balls.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1, a method for reinforcing a steel structure joint of an assembly type building includes the following steps:
s1, calculating and evaluating the stress at the node of the steel structure beam column according to the building design drawing, determining the reinforcement grade, and starting to prepare a related reinforcement material;
s2, prefabricating a plurality of external reinforcing members with corresponding sizes, performing assembly processes such as welding of related parts and the like, and reserving proper hole sites at the nodes of the steel structure beam column;
s3, pre-installing external reinforcing members in different directions at the nodes of the steel structure beam column, screwing the high-strength bolts 5 for anchoring, and filling structural glue with the thickness of 2-5mm between the nodes and the external reinforcing members;
s4, embedding the magnetic edge strips 6 at the edges of the outward-wrapped reinforcing members, and jointing by using latex cement;
s5, wrapping and binding a plurality of external reinforcing members by the number of not less than three steel band hoops 4, installing by a pneumatic packer, and permanently sealing and fixing by a packing buckle.
Referring to fig. 2-3, the external reinforcing member includes a base equilateral angle steel 1, an embedded shaped block 2 is welded on the outer side wall of the base equilateral angle steel 1, a plurality of multi-effect force balls 3 which are contacted with each other are welded on the outer side wall of the embedded shaped block 2, a plurality of unequal force transfer rods 8 are embedded in the inner end of the embedded shaped block 2, the unequal force transfer rods 8 are distributed in the direction perpendicular to the contact point of the multi-effect force balls 3 and the embedded shaped block 2, and both ends are respectively connected with the base equilateral angle steel 1 and the multi-effect force balls 3, the external reinforcing member mainly plays a role of reinforcing and supporting the steel structure beam column node through the base equilateral angle steel 1, the embedded shaped block 2 plays a role of shaping the base equilateral angle steel 1 and assists in supporting the same, the multi-effect force balls 3 feed back the deformation force of the base equilateral angle steel 1 and the embedded shaped block 2 through conversion according to the unique sphere stress characteristic, meanwhile, the unequal dowel bars 8 are also directly transmitted to the base equal-angle steel 1 to assist in supporting and shaping, namely, the external force which causes the foundation equilateral angle steel 1 and the embedded shaping block 2 to deform is reversely acted on the shaping, the partial offset of the external force is indirectly realized, the reinforcing effect is improved, the distribution mode of the unequal dowel bars 8 is remarkable, the foundation equilateral angle steel 1 is supposed to slightly deform, the most easily deformed is the edge part of the foundation equilateral angle steel 1, the deformation force is firstly transmitted to the multi-effect force ball 3 at the uppermost side, after being converted by the multi-effect force ball 3, the multi-effect force ball feeds back to the unequal force transmission rods 8 which are connected with each other, acts on the initially deformed part to prevent the multi-effect force ball from continuously deforming, and along with the continuous downward transmission of the deformation force, the reaction force of the unequal dowel bar 8 approaches to the central area of the base equal-angle steel 1, and the force transmission characteristics are met.
The shape of embedded shaped block 2 outside edge is the arc of indent, and basis equilateral angle steel 1 and embedded shaped block 2 adopt stainless steel and aluminum alloy material to make respectively, embedded shaped block 2's structural shape characteristic can satisfy basis equilateral angle steel 1 with the external force diversion when atress deformation, turn into inward extrusion force, reverse effect basis equilateral angle steel 1's setting, can play good offset, basis equilateral angle steel 1 is as the reinforcement component of main support, must possess good intensity and permanent life, and embedded shaped block 2 adopts comparatively light aluminum alloy material, whole quality is lighter when satisfying the setting, be convenient for construction and installation.
Referring to fig. 5, the multi-effect force ball 3 sequentially includes an energy absorption layer 301, a force rotation layer 302 and a substantial inner core 303 from outside to inside, the energy absorption layer 301 is an elastic sponge core embedded in a nylon interlayer, the elastic sponge core is permeated with shear viscous liquid, the force rotation layer 302 is made of an elastic soft material, the substantial inner core 303 is made of a solid ball made of alloy structural steel, the energy absorption layer 301 has a good energy absorption characteristic, the nylon interlayer plays a role in protecting the elastic sponge core, the elastic sponge core has a high-elastic buffering effect on one hand, the elastic sponge core can be permeated with shear viscous liquid on the other hand, most external force can be absorbed by the characteristic of hardening due to stress, the force rotation layer 302 plays a good transition buffering effect, and the substantial inner core 303 serves as a framework and plays a good supporting effect.
A plurality of pairs of arc rotating force rods 11 which are symmetrically distributed are embedded in the rotating force layer 302, a plurality of gradient cushion blocks 12 which are uniformly distributed are fixedly connected in the area, corresponding to the arc rotating force rods 11, on the outer side wall of the inner core 303, and the lengths of the gradient cushion blocks 12 gradually decrease, wherein the longest gradient cushion block 12 is fixedly connected with one end of each arc rotating force rod 11 and corresponds to the contact point of an upper multi-effect force ball 3 and a lower multi-effect force ball 3, because the amplitude of the arc rotating force rod 11 which is closer to one end of each assisted force ball 13 when the arc rotating force rod is stressed to move is larger, the lengths of the gradient cushion blocks 12 gradually decrease to adapt to the moving amplitude, so that the arc rotating force rods 11 are well supported, the arc rotating force rods 11 are prevented from being lack of support and generating local deformation when the arc rotating force rods 11 are stressed to be overlarge, the transmission of the force is prevented, one side, far away from the contact point with the embedded fixed block 2, of the assisted force balls 13, the external force transmitted by the adjacent multiple-effect force balls 3 can be transmitted to the auxiliary force ball 13 from the contact point through the transmission of the arc rotating force rod 11 and is applied to the intersection point of the extension lines of the corresponding unequal force transmission rods 8 of the multiple-effect force balls 3, namely, the external force is transmitted and changed in direction and then utilized, and the unequal force transmission rods 8 are reversely assisted to act on the shaping action on the foundation equilateral angle steel 1 and the embedded shaping block 2.
Referring to fig. 4, the two side walls of the base equilateral angle steel 1 close to the nodes are fixedly connected with the four-angle-distributed epitaxial magnets 9, the magnetic edge strips 6 are made of ferromagnetic metal materials, the four magnetic edge strips 6 surround the four epitaxial magnets 9 to form a sealed square frame, a structural adhesive layer and a latex cement layer are respectively formed on the inner side and the outer side of the square frame, the structural adhesive layer is conveniently isolated and protected, temporary fixing can be performed based on the magnetic adsorption effect, time is not consumed for fixing, the construction efficiency is accelerated, a reinforcing steel bar net rack 10 welded on the side walls of the base equilateral angle steel 1 is arranged in the square frame, the reinforcing steel bar net rack 10 is manufactured by welding or binding steel wires through transverse reinforcing steel bars and vertical reinforcing steel bars, the connecting strength of the reinforcing steel bar net rack 10 is improved by embedding the structural adhesive layer, and the steel structure beam column nodes and the base equilateral angle steel 1, the reinforcement effect is improved by a more intimate bond.
The multi-effect force ball 3 is provided with a matched threading groove 7 along the direction of the steel band hoop 4, the steel band hoop 4 is inserted with the multi-effect force ball 3 to surround a plurality of outer package reinforcing members, on one hand, the steel band hoop 4 can be inserted into the threading groove 7 to connect the plurality of outer package reinforcing members into a whole in a surrounding mode, so that the whole reinforcing effect is improved, on the other hand, the multi-effect force balls 3 can be connected to facilitate the dispersion and transmission of force, the whole external force is broken into parts, the threading groove 7 is sealed in a mortar or waterproof glue injecting mode after the steel band hoop 4 is inserted and fixed, on the one hand, the steel band hoop 4 is firmly locked in the threading groove 7 to protect the threading groove, on the other hand, the steel band hoop 4 can be better connected with the multi-effect force ball 3 through the threading groove 7 to form the dispersion and transmission of the whole convenient force, the strength of the steel band hoop 4 is more than 800MPa, the thickness is 0.5-1.5mm, and the material of the steel band hoop 4 is any one of a bluing steel band, a stainless steel band, galvanized steel or a carbon fiber band.
The invention can realize the supporting and protecting of the steel structure beam column node by the external wrapping and reinforcing mode, and the external force received by the structure characteristic is reversely acted on the reinforcing member by a conversion feedback mode, the integral stability of the reinforcing member is improved, wherein, the multi-effect force ball 3 is innovatively introduced, on one hand, the structure of the reinforcing piece is promoted to tend to be stable, meanwhile, the external force can be conveniently dispersed and a plurality of reinforcing pieces are combined into a whole, on the other hand, the external force transmitted by the reinforcing pieces is effectively dissolved by utilizing the self characteristics and adopting the mode of absorbing energy firstly and then decomposing the external force, and the external force is promoted to carry out conversion feedback, thereby not only meeting the high strength and high stability of the node reinforcement requirement, meanwhile, the excellent damping and buffering effect is achieved, the steel structure beam column node is reinforced effectively in a rigid-flexible mode, the node strength of the fabricated building is improved remarkably, and therefore the building safety is improved, and the service life is prolonged.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (10)
1. A steel structure node reinforcing method of an assembly type building is characterized by comprising the following steps: the method comprises the following steps:
s1, calculating and evaluating the stress at the node of the steel structure beam column according to the building design drawing, determining the reinforcement grade, and starting to prepare a related reinforcement material;
s2, prefabricating a plurality of external reinforcing members with corresponding sizes, performing assembly processes such as welding of related parts and the like, and reserving proper hole sites at the nodes of the steel structure beam column;
s3, pre-installing external reinforcing members in different directions at the joints of the steel structure beam column, screwing high-strength bolts (5) for anchoring, and filling structural glue with the thickness of 2-5mm between the joints and the external reinforcing members;
s4, embedding a magnetic edge strip (6) at the edge of the outward wrapping reinforcing piece, and pointing by adopting latex cement;
s5, wrapping and binding a plurality of external reinforcing members by the number of not less than three steel band hoops (4), installing by a pneumatic packer, and permanently sealing and fixing by a packing buckle.
2. The method for reinforcing the steel structure joint of the fabricated building according to claim 1, wherein: outsourcing reinforcement includes base equilateral angle steel (1), the welding has embedded shape piece (2) on base equilateral angle steel (1) lateral wall, the welding has multiple-effect power ball (3) of a plurality of contacts of each other on embedded shape piece (2) lateral wall, embedded shape piece (2) inner is inlayed and is pre-buried have many inequality dowel steel (8), inequality dowel steel (8) distribute with the direction of the contact point of perpendicular multiple-effect power ball (3) and embedded shape piece (2), and both ends are connected with base equilateral angle steel (1) and multiple-effect power ball (3) respectively.
3. The method for reinforcing the steel structure joint of the fabricated building according to claim 2, wherein: multieffect power ball (3) from outer to interior include in proper order energy-absorbing layer (301), commentaries on classics power layer (302) and essence inner core (303), energy-absorbing layer (301) are the embedded elasticity sponge core of nylon intermediate layer, and elasticity sponge core infiltration has the shearing to glue thick liquid, change power layer (302) and adopt elasticity soft materials, solid spheroid that essence inner core (303) adopted the alloy structure steel to make.
4. The method for reinforcing the steel structure joint of the fabricated building according to claim 3, wherein: the improved arc-shaped rotor comprises a rotor layer (302), wherein a plurality of pairs of arc rotor rods (11) which are symmetrically distributed are embedded in the rotor layer (302), a plurality of uniformly distributed gradient cushion blocks (12) are fixedly connected to the outer side wall of a substantial inner core (303) in the area corresponding to the arc rotor rods (11), the lengths of the gradient cushion blocks (12) are gradually reduced, the longest gradient cushion block (12) is fixedly connected with one end of each arc rotor rod (11) and corresponds to the contact point of an upper multi-effect power ball (3) and a lower multi-effect power ball (3), an auxiliary power ball (13) is arranged on one side, far away from the contact point with an embedded fixing block (2), of the rotor layer (302), and the auxiliary power ball (13) is fixedly connected with the other ends of the arc rotor rods (11).
5. The method for reinforcing the steel structure joint of the fabricated building according to claim 2, wherein: the shape of the outer edge of the embedded shaped block (2) is an inwards concave arc shape, and the base equilateral angle steel (1) and the embedded shaped block (2) are made of stainless steel and aluminum alloy materials respectively.
6. The method for reinforcing the steel structure joint of the fabricated building according to claim 2, wherein: equal fixedly connected with is epitaxial magnetic path (9) that the four corners distributes on the both sides wall that basis equilateral angle steel (1) is close to the node, magnetism strake (6) adopt ferromagnetic metal material to make, and four magnetism strakes (6) enclose into a sealed square frame around four epitaxial magnetic paths (9), the inside and outside both sides of square frame form structure glue film and latex cement layer respectively.
7. The method for reinforcing the steel structure joint of the fabricated building according to claim 6, wherein: be equipped with in the square frame and weld reinforcing bar rack (10) on angle steel (1) lateral wall such as basis, reinforcing bar rack (10) are made through the mode of horizontal reinforcing bar and vertical reinforcement welding or ligature steel wire.
8. The method for reinforcing the steel structure joint of the fabricated building according to claim 2, wherein: assorted threading groove (7) have been seted up in pleiotropic power ball (3) along the direction of steel band hoop (4), and steel band hoop (4) interlude pleiotropic power ball (3) around a plurality of outsourcing reinforcements.
9. The method for reinforcing the steel structure joint of the fabricated building according to claim 8, wherein: the penetrating groove (7) is sealed in a mode of injecting mortar or waterproof glue after the steel band hoop (4) is penetrated and fixed by the penetrating groove (7).
10. The method for reinforcing the steel structure joint of the fabricated building according to claim 1, wherein: the strength of the steel band hoop (4) is more than 800MPa, the thickness of the steel band hoop is 0.5-1.5mm, and the material of the steel band hoop (4) is any one of a bluing steel band, a stainless steel band, galvanized steel or a carbon fiber band.
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Cited By (1)
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