CN106760158B - External hanging type precast concrete sandwich heat-insulation wallboard and assembly system and construction method thereof - Google Patents
External hanging type precast concrete sandwich heat-insulation wallboard and assembly system and construction method thereof Download PDFInfo
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- CN106760158B CN106760158B CN201710057996.3A CN201710057996A CN106760158B CN 106760158 B CN106760158 B CN 106760158B CN 201710057996 A CN201710057996 A CN 201710057996A CN 106760158 B CN106760158 B CN 106760158B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
- E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
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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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/90—Passive houses; Double facade technology
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Abstract
The invention provides an externally hung precast concrete sandwich heat-insulation wall board and an assembly system and a construction method thereof.A steel bar truss web rib in a continuous bending form is connected to longitudinal reinforcing bars on inner and outer blades of the heat-insulation wall board so as to solve the technical problem of insufficient strength of a connecting structure between the blades on two sides of the conventional heat-insulation wall board; in addition, the externally-hung wallboard is assembled and connected with the steel beam and the floor slab through a pre-buried bolt technical means or a through bolt technical means, the self-characteristics of a steel structure can be considered at the same time, and the assembly structural strength of the wallboard, the steel beam and the floor slab is ensured.
Description
Technical Field
The invention relates to the technical field of precast concrete sandwich heat-insulation wallboards, in particular to an external hanging type precast concrete sandwich heat-insulation wallboard structure, a wallboard assembly system formed by the external hanging type precast concrete sandwich heat-insulation wallboard structure and a construction method.
Background
At present, the most mature technology of the assembled enclosure wall body suitable for steel structure buildings is a curtain wall system and an autoclaved aerated concrete prefabricated batten wall body. The prefabricated concrete sandwich heat-insulation wall plate is widely applied to concrete structure buildings, is a building enclosure wall body assembly technology with great development potential, but is difficult to be directly applied to the steel structure buildings in practice on the premise of considering various performance differences of a steel structure and a concrete structure and considering the problem of compatibility between different materials.
The steel structure enclosure wall technology should fully consider the self characteristics of the steel structure:
(1) the steel structure is an independent stress system and has light weight, and a non-bearing light wall body is adopted;
(2) the rigidity of the steel structure is poor, the interlayer deformation is large, and the wall body is in a flexible connection mode so as to adapt to the deformation of the main body structure;
(3) the problems of cold and hot bridges and acoustic bridges of a steel structure are outstanding, and the wall body has good heat preservation, heat insulation and sound insulation performance;
(4) the steel structure has poor fire resistance and corrosion resistance, and the wall body can be well protected;
(5) the prefabricated assembly degree of steel construction is higher, and the wall body correlation technique should match it as far as possible.
Referring to fig. 1 to 3, which show cross sections and structural schematic views of a conventional wall panel, a conventional precast concrete sandwich thermal insulation wall panel 10 (hereinafter referred to as a thermal insulation wall panel 10) includes an outer leaf plate 11, an outer leaf reinforcement mesh 12, a thermal insulation material layer 13, an inner leaf plate 14, an inner leaf reinforcement mesh 15, and a steel truss, where the steel truss includes a steel truss web 16 penetrating through the outer leaf plate 11, the thermal insulation material layer 13, and the inner leaf plate 14, and the two ends of the steel truss web 16 are connected to the outer leaf reinforcement mesh 12 and the inner leaf reinforcement mesh 15, respectively, so as to form the conventional thermal insulation wall panel 10.
The construction method of the existing heat insulation wallboard 10 comprises the following steps: after the outer leaf reinforcing mesh 12 is positioned, the longitudinal bars of the outer leaf reinforcing mesh 12 are welded to the steel truss web 16, and concrete is poured outside the outer leaf reinforcing mesh 12 to form an outer leaf plate 11 structure (fig. 1) with the outer leaf reinforcing mesh 12 wrapped inside. Next, a heat insulating material layer 13 in which the steel bar truss 16 is wrapped is formed by placing a heat insulating material (rock wool, glass wool, or the like) on one side surface of the outer blade 11 facing the steel bar truss web 16, or by placing foam concrete as a heat insulating material on one side surface of the outer blade 11 facing the steel bar truss web 16 (fig. 2). Finally, after the inner leaf reinforcing mesh 15 is positioned, the longitudinal bars of the inner leaf reinforcing mesh 15 are welded to the web bars of the steel truss web 16, and concrete is poured outside the inner leaf reinforcing mesh 15 to form an inner leaf plate 14 structure (fig. 3) with the inner leaf reinforcing mesh 15 wrapped inside.
It should be noted that, as shown in fig. 3, the web ribs 16 of the steel bar truss of the existing thermal insulation wall panel 10 are disposed inside the thermal insulation wall panel 10 in a manner perpendicular to the surface of the outer blade 11 and the surface of the inner blade 14, that is, there is no other connecting structure between the outer blade 11 and the inner blade 14 and between the adjacent web ribs 16 of the steel bar truss, so that there is a structural weakness when the two blades are stressed. Furthermore, the concrete blades of the existing thermal insulation wall panels 10 generally adopt Fiber Reinforced Polymer/Plastic (FRP) or stainless steel connectors, and require special techniques to achieve connection, so that the requirements on construction techniques are relatively high, and the integrity of the thermal insulation wall panels 10 after construction is not ideal.
Disclosure of Invention
In view of the above situation, the invention provides an externally-hung precast concrete sandwich heat-insulating wall panel and an assembly system and a construction method thereof, wherein the technical problem of insufficient strength of a connecting structure between two side leaf plates of the existing heat-insulating wall panel is solved by connecting reinforcing steel bar truss web reinforcements in a continuous bending form to longitudinal reinforcements on the inner leaf plate and the outer leaf plate of the heat-insulating wall panel; in addition, the externally-hung wallboard is assembled and connected with the steel beam and the floor slab through a bolt pre-embedding technical means or a bolt through technical means, the self-characteristics of a steel structure can be considered at the same time, and the assembly structural strength of the wallboard, the steel beam and the floor slab is ensured.
In order to achieve the purpose, the invention adopts the technical scheme that an externally-hung precast concrete sandwich heat-insulation wallboard is provided, and the externally-hung precast concrete sandwich heat-insulation wallboard comprises an outer leaf plate, an inner leaf plate and a heat-insulation material layer, wherein an outer leaf reinforcing mesh is arranged in the outer leaf plate, an inner leaf plate is arranged in the inner leaf reinforcing mesh, and a steel bar truss is arranged between the outer leaf plate and the inner leaf plate; wherein: the steel bar truss is of a plane steel bar truss structure and comprises truss web ribs which are continuously bent and penetrate through an outer leaf plate, a heat insulation material layer and an inner leaf plate which are overlapped according to the sequence, the truss web ribs are provided with web members which are obliquely arranged between the outer leaf plate and the inner leaf plate, the end connection parts of the web members form turning nodes distributed on two sides of the truss web ribs, and the truss web ribs are connected with the outer leaf steel bar net or the inner leaf steel bar net through the turning nodes on the same side.
The invention also provides an assembly system of the externally-hung precast concrete sandwich heat-insulation wall board, which is used for assembling the externally-hung precast concrete sandwich heat-insulation wall board on a steel beam, wherein the steel beam comprises an upper wing plate, a lower wing plate and a web plate connected with the upper wing plate and the lower wing plate; wherein the fitting system comprises: the wallboard is arranged on the outer sides of the upper wing plate and the lower wing plate of the steel beam; the first bolt assembly is embedded at the bottom of the wallboard; the connecting piece is fixedly arranged on the upper wing plate of the steel beam and is partially embedded in the end part of the floor slab; the second bolt assembly is embedded in the top of the wallboard in advance; the bottom of the wallboard is connected with the connecting piece through the first bolt assembly so as to be connected with and loaded on the steel beam; the top of the wallboard is fixedly connected with the web of the steel beam through the second bolt assembly.
The assembly system of the externally-hung precast concrete sandwich heat-insulation wallboard is further improved in that the first bolt assembly comprises a bolt and a nut, and the bolt is connected with the bottom of the wallboard in a penetrating manner; the connecting piece comprises a horizontal plate, a first vertical plate and a second vertical plate, wherein the first vertical plate is arranged along the length direction of the steel beam, and the horizontal plate and the second vertical plate are respectively connected with the first vertical plate in a T shape and are arranged on two opposite side surfaces of the first vertical plate; the bottoms of the first vertical plate and the second vertical plate are welded with the upper wing plate of the steel beam; the horizontal plate and the first vertical plate form a bearing structure together; the first vertical plate is provided with a vertical long slotted hole with an open top end downwards from the top side; the bottom of the wallboard is arranged on the bearing structure and is close to the first vertical plate, and the bolt of the first bolt assembly is arranged in the bearing structure in a sliding mode through the top end opening of the vertical long slotted hole so as to be matched with a nut to be locked with the connecting piece.
The assembly system of the externally-hung precast concrete sandwich heat-insulation wallboard is further improved in that the bolt of the first bolt assembly is connected with the wallboard in a penetrating way through a pre-embedding way or a counter-pulling penetrating way, wherein the bolt is embedded in the wallboard when an inner blade plate of the wallboard is formed by pouring by welding a steel plate at the end part; or the bolts penetrate through the wall board and are fastened by nuts arranged at two ends so as to be oppositely pulled and penetrated in the wall board.
The assembly system of the externally-hung precast concrete sandwich heat-insulation wallboard is further improved in that a web plate of the steel beam is provided with a transverse long round hole; the second bolt assembly comprises a bolt, a nut, a gasket and a sliding sheet, the bolt is connected with the top of the wallboard in a penetrating mode, and the gasket and the sliding sheet are sleeved outside the bolt and arranged between the nut and the wallboard; the top of the wallboard is close to and arranged on the outer sides of the upper wing plate and the lower wing plate of the steel beam, the bolt of the second bolt assembly penetrates through the transverse long circular hole, and the sliding sheet is arranged between the gasket and the web of the steel beam so as to be matched with a nut to be locked with the web.
The assembly system of the externally-hung precast concrete sandwich heat-insulation wallboard is further improved in that the bolt of the second bolt assembly is connected with the wallboard in a penetrating way through a pre-embedding way or a counter-pulling penetrating way, wherein the bolt is embedded in the wallboard when an inner blade plate of the wallboard is formed by pouring by welding a steel plate at the end part; or the bolts penetrate through the wall board and are fastened by nuts arranged at two ends so as to be oppositely pulled and penetrated in the wall board.
The assembly system of the externally-hung precast concrete sandwich heat-insulation wallboard is further improved in that a horizontal joint is formed between the wallboards which are adjacently arranged up and down, and the horizontal joint is provided with an outer side opening defined by the upper outer blade plate and the lower outer blade plate and an inner side opening defined by the upper inner blade plate and the lower inner blade plate; a sealing structure comprising a fireproof joint material, an airtight adhesive tape, a polyethylene rod and a building sealant is sequentially arranged in the horizontal joint from the inner opening to the outer opening, and the horizontal joint is separated from the polyethylene rod through the airtight adhesive tape to form a pressure reduction bin; the fireproof joint material is arranged at the inner side opening and clamped between a horizontal plate of the connecting piece at the bottom of the upper wallboard and the top surface of the lower wallboard; the airtight adhesive tape is arranged between the upper and lower heat-insulating material layers close to the refractory joint material; the polyethylene rod and the building sealant are arranged at the outer side opening, and the outer side opening is plugged by the building sealant.
In addition, the invention provides a construction method of an externally-hung precast concrete sandwich heat-insulation wall plate, which is used for assembling the externally-hung precast concrete sandwich heat-insulation wall plate on steel beams at an upper layer and a lower layer, wherein each steel beam comprises an upper wing plate, a lower wing plate and a web plate connected with the upper wing plate and the lower wing plate; wherein the method comprises the steps of:
providing the wallboard, wherein a first bolt assembly is preset at the bottom of the wallboard, and a second bolt assembly is preset at the top of the wallboard;
providing a connecting piece, wherein the connecting piece comprises a first vertical plate, and a horizontal plate and a second vertical plate which are respectively connected with the first vertical plate in a T shape and arranged on two opposite side surfaces of the first vertical plate; welding the bottoms of the first vertical plate and the second vertical plate of the connecting piece with the upper wing plate of the steel beam;
hoisting the wallboard to a bearing structure formed by a horizontal plate and a first vertical plate of the connecting piece;
the first bolt assembly penetrates through the first vertical plate of the connecting piece and then is locked and fastened, so that the bottom of the wallboard is connected and loaded on the lower layer steel beam through the connecting piece;
and enabling the second bolt assembly to penetrate through the web plate of the steel beam and then be locked and fastened so as to connect the top of the wallboard with the upper-layer steel beam.
The construction method of the externally-hung precast concrete sandwich heat-insulation wallboard is further improved in that a floor slab is poured above the steel beam, and the end part of the floor slab is positioned on an upper wing plate of the steel beam; the floor slab can be formed by pouring after the wallboard is installed; or, the floor slab can be formed by pouring before the wallboard is installed after a space for arranging the connecting piece is reserved on the upper wing plate of the steel beam.
The construction method of the externally-hung precast concrete sandwich heat-insulation wallboard is further improved in that bolts of the first bolt assembly and the second bolt assembly can be connected with the wallboard in a penetrating way through a pre-embedding means or a pulling penetrating means.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
(1) the outer hanging type wallboard is connected with the inner blade plate by adopting the plane steel bar truss, namely the longitudinal reinforcing bars of the inner blade plate and the outer blade plate are connected by the continuously bent web ribs, so that the integrity of the wall body can be improved, the inner blade plate and the outer blade plate are stressed together, and the technical effects of higher structural strength and higher rigidity of the wallboard are achieved.
(2) The prefabricated concrete sandwich heat-insulation wallboard is only used as an enclosure structure and does not participate in the whole stress of the structure, and the weight of each layer of wallboard is born by the horizontal plate of the connecting piece and is not transferred downwards.
(3) The web of steel construction opens the slotted hole, and has the slide piece that reduces frictional force between bolt gasket and the girder steel web, when guaranteeing that the steel construction takes place to warp between the layer, the wallboard need not warp thereupon to avoid the wallboard crack scheduling problem that the structure warp and lead to.
(4) The horizontal joint position of the external wallboard is correspondingly arranged at the bottom of the end face of the floor slab, so that the problems of a cold and hot bridge and an acoustic bridge can be reduced, and the external wallboard can well play roles in heat insulation and sound insulation. The horizontal joint of the wallboard is filled with a plugging material such as a refractory joint material, an airtight adhesive tape and a polyethylene rod in a matching way, so that the performances of heat preservation, heat insulation, sound insulation, fire prevention, water prevention and the like of a building are ensured.
(5) By forming the pressure reduction bin between the plugging materials in the horizontal joint of the wallboard, the effect of avoiding capillary permeation can be achieved.
(6) Wallboard and steel construction adopt bolted connection, and the level of assemblization is high, and girder steel web and connecting piece riser trompil are great, the regulation of easy to assemble error.
(7) The product integration level is higher, and spool etc. can be pre-buried, and window frame etc. can be pre-installed, and the heat preservation is decorated and is realized the integration.
(8) The wallboard effectively prolongs the service life of the wallboard through the arrangement of the heat insulation material, and achieves the technical effect of realizing the same service life with a building.
Drawings
Fig. 1 is a schematic elevation view of an outer blade manufacturing structure of a conventional thermal insulation wallboard.
Fig. 2 is a schematic elevation view of a thermal insulation material layer manufacturing structure of a conventional thermal insulation wallboard.
Fig. 3 is a schematic elevation view of an inner blade manufacturing structure of a conventional thermal insulation wallboard.
Fig. 4 is a schematic elevation view of the outer-leaf manufacturing structure of the precast concrete sandwich thermal insulation wallboard of the invention.
FIG. 5 is a schematic elevation view of the structure of the thermal insulation material layer of the precast concrete sandwich thermal insulation wallboard of the present invention.
FIG. 6 is a schematic elevation view of the inner leaf manufacturing structure of the precast concrete sandwich thermal insulation wallboard of the present invention.
FIG. 7 is a schematic view of the vertical structure of the thermal insulation wall panel, the steel beams and the floor slab formed by installing the wall panel by means of embedding the bolts and then pouring the floor slab.
Fig. 8 is a schematic view of the vertical structure of the thermal insulation wall plate, the steel beam and the floor plate formed by casting the floor plate and then installing the wall plate by means of embedding the bolts.
FIG. 9 is a schematic view of the vertical structure of the thermal insulation wall panel, the steel beams and the floor slab formed by the first installation of the wall panel by means of the bolts passing through the opposite direction and the subsequent pouring of the floor slab.
FIG. 10 is a schematic view of the vertical structure of the thermal insulation wall panel, the steel beams and the floor panel formed by casting the floor panel and then installing the wall panel by means of bolts through opposite pulling.
Fig. 11 is an enlarged view of a portion of the upper dotted circle of fig. 7-10 according to the present invention.
FIG. 12 is a side view of the structure of FIG. 11 in accordance with the present invention.
Fig. 13 is an enlarged view of a portion of the structure within the dotted circle of fig. 7 to 10.
FIG. 14 is a side view of the structure of FIG. 13 according to the present invention.
FIG. 15 is a schematic plan view of the cross-section line 1-1 of FIGS. 7 and 8 according to the present invention.
Fig. 16 is a schematic plan view of the cross-section 2-2 of fig. 7 and 8 according to the present invention.
Fig. 17 is a schematic plan view of the cross-section line 1-1 in fig. 9 and 10 according to the present invention.
Fig. 18 is a schematic plan view of the cross-section 2-2 of fig. 9 and 10 according to the present invention.
The correspondence of reference numerals to components is as follows:
background art:
a heat-insulating wall panel 10; an outer leaf plate 11; an outer leaf reinforcement mesh 12; a thermal insulation material layer 13; an inner leaf plate 14; an inner leaf reinforcement mesh 15; a steel truss web 16.
The invention comprises the following steps:
a steel beam A; upper wing panel a 1; a lower wing panel A2; web a 3; a transverse oblong hole a 4; a floor slab B; reserving a mounting port B2; a wall panel 20; an outer leaf plate 21; an outer leaf reinforcement mesh 22; longitudinal rebars 221; transverse reinforcement bars 222; a thermal insulation material layer 23; an inner leaf plate 24; inner leaf reinforcing mesh 25; longitudinal rebars 251; transverse reinforcement bars 252; truss web ribs 26; a web 261; a turning node 262; a finishing layer 27; a first bolt assembly 30; a bolt 31; a nut 32; a gasket 33; a steel plate 34; a connecting member 40; a horizontal plate 41; a first riser 42; a second riser 43; a vertical slotted hole 44; a second bolt assembly 50; a bolt 51; a nut 52; a spacer 53; a steel plate 54; a slide sheet 55; a blocking structure 60; a refractory joint material 61; an airtight rubber strip 62; a polyethylene rod 63; building sealant 64; a reduced pressure bin 65.
Detailed Description
To facilitate the understanding of the present invention, the following description is made with reference to fig. 4 to 18 of the accompanying drawings and the embodiments thereof.
The invention provides an externally-hung precast concrete sandwich thermal insulation wallboard and an assembly system and a construction method thereof.
Referring to fig. 4 to 6, the structure of the thermal insulation wall panel of the present invention is illustrated, wherein the wall panel 20 mainly includes an outer leaf plate 21, a thermal insulation material layer 23 and an inner leaf plate 24, the outer leaf plate 21 is provided with an outer leaf reinforcing mesh 22 inside, the inner leaf plate 24 is provided with an inner leaf reinforcing mesh 25 inside, the thermal insulation material layer 23 is provided between the outer leaf plate 21 and the inner leaf plate 24, and a steel bar truss is inserted in the thermal insulation material layer; the steel bar truss is a plane steel bar truss structure, and the truss web rib 26 including continuous bending penetrates in outer blade 21, thermal insulation material layer 23 and inner blade 24 according to the preface coincide, the truss web rib 26 has the slant and locates outer blade 21 with web member 261 between the inner blade 24 constitutes, web member 261 end connection department forms distribute in the turn node 262 of truss web rib 26 both sides, the truss web rib 26 through the turn node 262 of homonymy with outer leaf reinforcing bar net 22 or inner leaf reinforcing bar net 25 is connected.
In the present invention, the wall panel 20 may be manufactured by the steps of pouring one of the blades, forming the thermal insulation material layer, and pouring the other blade, or when the thermal insulation material layer is a solid material, the wall panel may be manufactured by the steps of pouring one of the blades, pouring the other blade, and filling the thermal insulation material between the two blades.
Referring to the elevation views of fig. 7 to 10 in combination with the plan views of fig. 15 to 18, the present invention provides an assembly system for an externally-hung precast concrete sandwich thermal insulation wall panel, which is used for assembling the externally-hung precast concrete sandwich thermal insulation wall panel 20 on a steel beam a and a floor B. The assembly system includes the wall panel 20, first bolt assemblies 30 and connectors 40 for securing the bottom of the wall panel 20 to steel beams a and floor slabs B, and second bolt assemblies 50 for securing the top of the wall panel 20 to webs a3 of steel beams a.
The wall panel 20 of the present invention can be assembled to the steel beam a and the floor B by the bolt embedding means shown in fig. 7, 8, 15 and 16, or by the bolt opposite pulling-through means shown in fig. 9, 10, 17 and 18. In addition, the steel beam A comprises an upper wing plate A1, a lower wing plate A2 and a web A3 connected in the upper wing plate A1; the floor B can be formed on the upper wing plate a1 of the steel beam a by pouring after the wall panel 20 is installed, so that the wall panel 20 is combined with the upper wing plate a1 of the steel beam a and the end face of the floor B through the first bolt assembly 30 (as shown in fig. 7 and 9); alternatively, the floor B may be cast to form the floor B before the wall panel 20 is installed, by forming the reserved installation opening B2 above the upper wing panel a1, and after the installation of the wall panel 20 is completed, the reserved installation opening B2 is filled with fine aggregate concrete (see fig. 8 and 10).
Specifically, as shown in fig. 7 to 10, the wall plate 20 is disposed outside the upper wing plate a1 and the lower wing plate a2 of the steel beam a; the first bolt assembly 30 is embedded at the bottom of the wall plate 20; the connecting piece 40 is fixedly arranged on an upper wing plate A1 of the steel beam A and is partially embedded in the end part of the floor slab B; the second bolt assembly 50 is embedded in the top of the wallboard 20; the bottom of the wall plate 20 is assembled with the connecting member 40 by the first bolt assembly 30 to be connected and loaded to the steel beam a; the top of the wall panel 20 is secured to the web a3 of the steel beam a by the second bolt assembly 50.
The concrete combination structure of the wall panel 20 assembled with the steel beam a and the floor B by the first and second bolt assemblies 30 and 50 will be described below. Since the above-described coupling structure is the same as that of fig. 7 to 10, only fig. 7 will be described below.
As shown in fig. 7, 11 and 12, the first bolt assembly 30 includes a bolt 31 and a nut 32, and the bolt 31 is connected to the bottom of the wall plate 20; the connecting piece 40 comprises a horizontal plate 41, a first vertical plate 42 and a second vertical plate 43, the first vertical plate 42 is arranged along the length direction of the steel beam A, and the horizontal plate 41 and the second vertical plate 43 are respectively arranged on two opposite side surfaces of the first vertical plate 42 in a T-shaped connection manner with the first vertical plate 42; the bottoms of the first vertical plate 42 and the second vertical plate 43 are welded with an upper wing plate A1 of the steel beam A; the horizontal plate 41 and the first vertical plate 42 form a bearing structure together; the first vertical plate 42 is provided with a vertical slotted hole 44 with an open top end from the top side to the bottom side; thus, by placing the bottom of the wall plate 20 on the bearing structure and against the first vertical plate 42, the bolt 31 of the first bolt assembly 30 is slidably inserted through the top opening of the vertical slotted hole 44 to cooperate with the nut 32 to lock with the connecting member 40.
Specifically, the first vertical plate 42 is welded and fixed after the side surface facing the wall plate 20 is aligned with the outer side edge of the upper wing plate a1 of the steel beam a, and the first vertical plate 42 and the second vertical plate 43 are embedded in the end part of the floor B after the floor B is formed by pouring.
In addition, in the present invention, in order to enhance the fastening structural strength of the first bolt assembly 30, a gasket 33 is preferably disposed between the nut 32 and the first vertical plate 42, and the number of the nuts 32 is two, so as to enhance the fastening effect and avoid the loosening of the nuts 32 from affecting the structural stability; wherein, the outer diameters of the gasket 33 and the nut 32 are larger than the width of the vertical slotted hole 44.
Furthermore, as shown in fig. 7, when the bolt 31 of the first bolt assembly 30 is connected with the wall panel 20 by using an embedding means, the end of the bolt 31 is welded with a steel plate 34, so as to be embedded in the wall panel 20 when the inner blade plate 24 of the wall panel 20 is formed by casting. As shown in fig. 9, when the bolt 31 of the first bolt assembly 30 is connected with the wall panel 20 by means of opposite pulling, the bolt 31 is entirely passed through the wall panel 20, and nuts 32 are provided at both ends for fastening, so as to be opposite pulling inserted inside the wall panel 20.
Specifically, when the opposite pulling-through means is adopted, the evasion groove is preferably reserved in the outer blade 21 of the wall panel 20 during the pouring process for accommodating the nut 32 fastened at the end of the bolt 31, so as to avoid the nut 32 protruding out of the surface of the outer blade 21 and causing difficulty in the subsequent construction of the finishing layer 27, and ensure the smoothness of the finishing layer 27.
As shown in fig. 7, 13 and 14, the second bolt assembly 50 includes a bolt 51, a nut 52, a washer 53 and a sliding plate 55, the bolt 51 is connected to the top of the wall plate 20, and the washer 53 and the sliding plate 55 are sleeved outside the bolt 51 and between the nut 52 and the wall plate 20; a web A3 of the steel beam A is provided with a transverse oblong hole A4; therefore, the top of the wall plate 20 is abutted against the outer sides of the upper wing plate a1 and the lower wing plate a2 of the steel beam a, the bolt 51 of the second bolt assembly 50 penetrates through the transverse oblong hole a4, and the sliding sheet 55 is arranged between the gasket 53 and the web plate A3 of the steel beam a so as to be matched with the nut 52 to be locked with the web plate A3. Here, the transverse oblong hole a4 is matched with the sliding sheet 55 arranged between the gasket 53 and the web A3, so that the function of reducing friction force can be achieved, and when the steel structure deforms between layers, the wallboard 20 does not need to deform along with the deformation, and the problems of wallboard cracks and the like caused by structural deformation are avoided.
In the present invention, in order to enhance the fastening structural strength of the second bolt assembly 50, a spacer 53 is preferably disposed between the nut 52 and the web a3, and the number of the nuts 52 is two, so as to enhance the fastening effect and avoid the loosening of the nuts 52 from affecting the structural stability; wherein, the outer diameters of the gasket 53 and the nut 52 are larger than the width of the transverse oblong hole A4.
Furthermore, as shown in fig. 7, when the bolt 51 of the second bolt assembly 50 is inserted into and connected with the wall panel 20 by using an embedding means, the end of the bolt 51 is welded with a steel plate 54, so as to be embedded into the wall panel 20 when the inner blade 24 of the wall panel 20 is formed by casting. As shown in fig. 9, when the bolt 51 of the first bolt assembly 50 is connected with the wall panel 20 by means of opposite pulling, the bolt 51 is entirely inserted through the wall panel 20, and nuts 52 are provided at both ends for fastening, so as to be opposite pulled through the wall panel 20.
In addition, the exterior surface of the wall panel 20 may be provided with a facing layer 27. Therefore, when the opposite pulling-through means is adopted, the evasion groove is reserved in the outer blade plate 21 of the wallboard 20 preferably during pouring, and is used for accommodating the nut 52 fastened at the end part of the bolt 51, so that the difficulty in subsequent construction of the finish coat 27 caused by the fact that the nut 52 protrudes out of the surface of the outer blade plate 21 is avoided, and meanwhile, the smoothness of the finish coat 27 can be ensured; the evasion groove is formed after the bolt 51 is pulled through the wall plate 20.
As shown in fig. 7 and fig. 15 and fig. 16, a horizontal joint (fig. 7) is formed between the wall panels 20 adjacently disposed up and down, and an outer opening (located at the left side of fig. 7) defined by the upper and lower outer blades 21 and an inner opening (located at the right side of fig. 7) defined by the upper and lower inner blades 24 are provided in the horizontal joint; horizontal seam is inside certainly the inboard opening is equipped with the plugging material including fire-resistant joint material 61, airtight adhesive tape 62, polyethylene stick 63 and building sealant 64 in proper order towards the outside opening, the material constitutes block structure 60 jointly in order to seal horizontal seam, just horizontal seam passes through airtight adhesive tape 62 with polyethylene stick 63 separates to establish and forms decompression storehouse 65.
Wherein, the refractory joint material 61 is arranged at the inner side opening and clamped between the horizontal plate 41 of the connecting piece 40 at the bottom of the upper wallboard 20 and the top surface of the lower wallboard 20; the airtight rubber strip 62 is arranged between the upper and lower heat-insulating material layers 23 close to the refractory joint material 61; the polyethylene rod 63 and the building sealant 64 are arranged at the outer side opening, and the outer side opening is sealed by the building sealant 64.
In addition, the wall board 20 has top and bottom surfaces opposite to each other, and the top and bottom surfaces are overlapped with the thermal insulation material layer 23 and the inner blade plate 24 in a staggered manner through the outer blade plate 21 to form an end surface structure with step change and top and bottom involution, so as to increase the bonding structural strength between the upper and lower adjacent wall boards 20.
The structure of the externally hung prefabricated concrete sandwich thermal insulation wall panel and the assembling system thereof according to the present invention are described above, and the assembling method of the externally hung prefabricated concrete sandwich thermal insulation wall panel according to the present invention is described below with reference to fig. 7 to 10 and fig. 15 to 18. The method comprises the following steps:
providing the wall plate 20, presetting a first bolt assembly 30 at the bottom and presetting a second bolt assembly 50 at the top of the wall plate 20;
providing a connecting piece 40, wherein the connecting piece 40 comprises a first vertical plate 42, and a horizontal plate 41 and a second vertical plate 43 which are respectively connected with the first vertical plate 42 in a T shape and arranged on two opposite side surfaces of the first vertical plate 42; welding the bottoms of the first riser 42 and the second riser 43 of the connector 40 to the upper wing plate A1 of the steel beam A;
hoisting the wall plate 20 to a bearing structure formed by the horizontal plate 41 and the first vertical plate 42 of the connecting piece 40;
the first bolt assembly 30 is inserted into the first vertical plate 42 of the connecting member 40 and then fastened by locking, so that the bottom of the wall panel 20 is connected and loaded on the lower steel beam a through the connecting member 40;
the second bolt assembly 50 is passed through the web a3 of the steel beam a and then fastened by a locking structure to connect the top of the wall panel 20 with the upper steel beam a.
Specifically, a floor slab B is poured above the steel beam A, and the end part of the floor slab B is positioned on an upper wing plate A1 of the steel beam A; as shown in fig. 7 and 9, the floor B can be formed by pouring after the wall panel 20 is installed; alternatively, as shown in fig. 8 and 10, the floor B may be formed by casting before the wall panel 20 is installed after a space for installing the connecting member 40 is reserved on the upper wing panel a1 of the steel beam a.
Specifically, the bolts 31 and 51 of the first and second bolt assemblies 30 and 50 may be inserted into and connected with the wall plate 20 by the pre-embedded means shown in fig. 7 and 8 or the counter-pulling insertion means shown in fig. 9 and 10.
In conclusion, according to the externally-hung precast concrete sandwich thermal insulation wallboard, the assembling system and the construction method thereof, the product integration level is improved, the wire pipes and the like can be pre-embedded, and the components (namely the wallboard 20 part) such as the window frame and the like can be pre-installed. Specifically, the wallboard 20 of the invention can realize the effects of integration of heat preservation and decoration, and the like, and the waterproof performance of the wallboard 20 is effectively improved under the combination of a waterproof structure and a waterproof material; moreover, by providing a pressure reduction chamber at the horizontal joint between the wall panels 20, problems caused by capillary penetration can be avoided, and ultimately the service life of the wall panels 20 is increased. In addition, the first bolt assemblies 30 and the second bolt assemblies 50 are used for assembling the wall plate 20 and the steel beam A, so that the node structure formed by the first bolt assemblies 30 and the second bolt assemblies 50 can meet the steel structure deformation requirement.
While the present invention has been described in detail and with reference to the accompanying drawings and examples, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments should not be construed as limitations of the invention, except insofar as the following claims are interpreted to cover the invention.
Claims (8)
1. An assembly system of an externally-hung precast concrete sandwich heat-insulation wallboard is used for assembling the wallboard on a steel beam and a floor slab, wherein the wallboard comprises an outer blade plate internally provided with an outer blade reinforcing mesh, an inner blade plate internally provided with an inner blade reinforcing mesh, and a heat-insulation material layer and a steel bar truss which are arranged between the outer blade plate and the inner blade plate; the steel beam comprises an upper wing plate, a lower wing plate and a web plate connected with the upper wing plate and the lower wing plate; characterized in that said assembly system comprises:
the wallboard is arranged on the outer sides of the upper wing plate and the lower wing plate of the steel beam; the steel bar truss is of a planar steel bar truss structure and comprises truss web ribs which are continuously bent, the truss web ribs penetrate through the outer leaf plate, the heat insulation material layer and the inner leaf plate which are sequentially overlapped, the truss web ribs are composed of web members which are obliquely arranged between the outer leaf plate and the inner leaf plate, the end parts of the web members are connected to form turning nodes which are distributed on two sides of the truss web ribs, and the truss web ribs are connected with the outer leaf steel bar net or the inner leaf steel bar net through the turning nodes on the same side;
the first bolt assembly is embedded at the bottom of the wallboard; the first bolt assembly comprises a bolt and a nut, and the bolt is connected with the bottom of the wallboard in a penetrating manner through a pre-embedding manner or a pulling penetrating manner;
the connecting piece is fixedly arranged on the upper wing plate of the steel beam and is partially embedded in the end part of the floor slab; the connecting piece comprises a horizontal plate, a first vertical plate and a second vertical plate, the first vertical plate is arranged along the length direction of the steel beam, and the horizontal plate and the second vertical plate are respectively connected with the first vertical plate in a T shape and are arranged on two opposite side surfaces of the first vertical plate; the bottoms of the first vertical plate and the second vertical plate are welded with the upper wing plate of the steel beam; the horizontal plate and the first vertical plate form a bearing structure together; the first vertical plate is provided with a vertical long slotted hole with an open top end downwards from the top side;
the second bolt assembly is embedded in the top of the wallboard in advance; the second bolt assembly comprises a bolt, a nut, a gasket and a sliding sheet, the bolt is connected with the top of the wallboard in a penetrating way through a pre-embedding way or a counter-pulling penetrating way, and the gasket and the sliding sheet are sleeved outside the bolt and arranged between the nut and the wallboard;
therefore, the bottom of the wallboard is arranged on the bearing structure and leans against the first vertical plate, and the bolt of the first bolt assembly slides into the vertical slotted hole through the top end opening of the vertical slotted hole so as to be matched with a nut and locked with the connecting piece, so that the wallboard is connected and loaded on the steel beam; the top of the wallboard is arranged close to the outer sides of the upper wing plate and the lower wing plate of the steel beam, the bolt of the second bolt assembly penetrates through the transverse long circular hole formed in the web plate of the steel beam, and the sliding sheet is arranged between the gasket and the web plate of the steel beam so as to be matched with the nut and the web plate lock.
2. The assembly system of an externally hung precast concrete filled thermal insulation wallboard according to claim 1, characterized in that:
the bolt of the first bolt assembly is embedded inside the wallboard when the inner blade plate of the wallboard is formed by pouring through welding steel plates at the end parts.
3. The assembly system of an externally hung precast concrete filled thermal insulation wallboard according to claim 1, characterized in that:
the bolts of the first bolt assembly penetrate through the wallboard and are fastened by nuts arranged at two ends of the first bolt assembly so as to be oppositely pulled and arranged inside the wallboard.
4. The assembly system of an externally hung precast concrete filled thermal insulation wallboard according to claim 1, characterized in that:
the bolts of the second bolt assembly are embedded inside the wallboard when the inner blade plate of the wallboard is formed by pouring through welding steel plates at the end parts.
5. The assembly system of the externally hung precast concrete sandwich thermal insulation wallboard according to claim 1, characterized in that:
the bolts of the second bolt assembly penetrate through the wallboard and are fastened by nuts arranged at two ends so as to be oppositely pulled and arranged inside the wallboard.
6. The system for assembling an externally-hung type precast concrete sandwich thermal insulation wall panel according to any one of claims 2 to 5, wherein:
a horizontal joint is formed between the wall plates which are adjacently arranged up and down, and the horizontal joint is provided with an outer side opening defined by the upper outer blade plate and the lower outer blade plate and an inner side opening defined by the upper inner blade plate and the lower inner blade plate; a sealing structure comprising a fireproof joint material, an airtight adhesive tape, a polyethylene rod and a building sealant is sequentially arranged in the horizontal joint from the inner opening to the outer opening, and the horizontal joint is separated from the polyethylene rod through the airtight adhesive tape to form a pressure reduction bin; the fireproof joint material is arranged at the inner side opening and clamped between a horizontal plate of the connecting piece at the bottom of the upper wallboard and the top surface of the lower wallboard; the airtight adhesive tape is arranged between the upper and lower heat-insulating material layers close to the refractory joint material; the polyethylene rod and the building sealant are arranged at the outer side opening, and the outer side opening is plugged by the building sealant.
7. A construction method of the system for assembling an externally hung type precast concrete sandwich insulation wallboard according to claim 1, wherein the construction method is used for assembling the wallboard on steel beams of an upper layer and a lower layer, and each steel beam comprises an upper wing plate, a lower wing plate and a web plate connected therein; characterized in that the method comprises the steps of:
providing the wallboard, wherein a first bolt assembly is preset at the bottom of the wallboard, and a second bolt assembly is preset at the top of the wallboard; bolts of the first bolt assembly and the second bolt assembly are connected with the wall plate in a penetrating way through a pre-embedding way or a pulling penetrating way;
providing a connecting piece, wherein the connecting piece comprises a first vertical plate, and a horizontal plate and a second vertical plate which are respectively connected with the first vertical plate in a T shape and arranged on two opposite side surfaces of the first vertical plate; welding the bottoms of the first vertical plate and the second vertical plate of the connecting piece with the upper wing plate of the steel beam;
hoisting the wallboard to a bearing structure formed by a horizontal plate and a first vertical plate of the connecting piece;
the first bolt assembly penetrates through the first vertical plate of the connecting piece and then is locked and fastened, so that the bottom of the wallboard is connected and loaded on the lower layer steel beam through the connecting piece;
and enabling the second bolt assembly to penetrate through the web plate of the steel beam and then be locked and fastened so as to connect the top of the wallboard with the upper-layer steel beam.
8. The construction method of the assembly system of the externally hung type precast concrete sandwich thermal insulation wallboard according to claim 7, characterized in that:
a floor slab is poured above the steel beam, and the end part of the floor slab is positioned on an upper wing plate of the steel beam;
the floor slab is formed by pouring after the wallboard is installed, or is formed by pouring before the wallboard is installed after a space for arranging the connecting piece is reserved on an upper wing plate of the steel beam.
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| CN107327018A (en) * | 2017-08-02 | 2017-11-07 | 浙江宝业现代建筑工业化制造有限公司 | A kind of assembled architecture of steel construction combination clear-water concrete superposed member |
| CN107514093A (en) * | 2017-08-09 | 2017-12-26 | 上海仝筑建筑科技有限公司 | Building systems are built in a kind of assembled 3D sprays |
| CN107419843A (en) * | 2017-08-29 | 2017-12-01 | 上海践道建筑科技有限公司 | Superposed type shock-proof wall plate |
| CN108081699A (en) * | 2018-01-10 | 2018-05-29 | 济南市城乡建设发展服务中心 | Assembled CF steam pressure porcelain powder aerated concrete outer wall hanging plates and production method |
| CN109049294B (en) * | 2018-08-03 | 2020-09-15 | 上海住信住宅工业有限公司 | Concrete prefabricated wallboard and production process thereof |
| CN112900736B (en) * | 2021-01-20 | 2022-10-18 | 中国建筑第八工程局有限公司 | Prefabricated external wall panel and mounting method thereof |
| CN114319730B (en) * | 2021-12-28 | 2024-04-30 | 中铁五局集团建筑工程有限责任公司 | Assembled multilayer composite heat-preservation heat-insulation roof board and preparation method and assembly method thereof |
| CN115234071B (en) * | 2022-03-19 | 2024-04-19 | 北京工业大学 | Assembled type one-shaped composite wallboard self-tapping screw assembly and post-pouring strip combined connection structure and manufacturing method |
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| JPH07229200A (en) * | 1994-02-21 | 1995-08-29 | Shimizu Corp | Support structure of hanging part, and constructing method thereof |
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