Supporting component of prefabricated external wall panel and connecting structure of prefabricated external wall panel
Technical Field
The utility model belongs to the technical field of the assembly type structure, specifically speaking, the utility model relates to a supporting component of prefabricated outer wall panel and contain the connection structure of the prefabricated side fascia of this subassembly.
Background
In the fabricated building, the prefabricated external wall panel is transported to a construction site for assembly after the engineering production is completed. The existing building design specification requires that the connecting structure with the main structure has enough bearing capacity and rigidity and the deflection capability of adapting to the main structure; the safety is required under the influence of adverse combinations such as gravity load, wind load, earthquake action, temperature action and the like and deformation of a main body structure; the flexible connection structure is suitable for being connected with the main body structure, reliable anti-corrosion and fireproof measures are adopted for the connection node, and safety in the design service life is guaranteed. According to prefabricated side fascia and major structure connected form can be divided into suspension type and side connection formula two kinds: 1) suspension type is connected and is meant that wallboard top or one of them end of bottom is reliably connected with the roof beam, and the wallboard both sides are disconnected with vertical member, and the wallboard other end should adopt spacing connection. 2) The side connection type connection means that the top end of the wallboard is reliably connected with a beam, steel bars are stretched out from two sides of the wallboard and anchored into a vertical component, and the bottom of the wallboard can adopt a limiting connection structure.
Reliable connection is passed through supporting component or post-cast strip realization to prefabricated side fascia and roof beam among the prior art more, and the structure that adopts the post-cast strip includes: extending out reinforcing steel bars from the top ends of the prefabricated wall boards, anchoring the extended reinforcing steel bars in the cast-in-place parts of the superposed beams, and then pouring concrete to realize the connection between the prefabricated external wall boards and the superposed beams; the structure has the technical problems that the mold is complex during production, the extending steel bars are easy to bend during transportation, the site construction operation is complex, the concrete pouring amount is large, and the like. The supporting component in the prior art has the technical problems of complex structure, small adjustable space, outstanding indoor influence, requirement for later decoration and the like. Therefore, a supporting assembly which is convenient to adjust, simple to install on site, does not protrude indoors and has strong fireproof and antirust capabilities and a connecting structure of the prefabricated external wall panel and the beam adopting the supporting assembly are required to be developed for the reliable connection between the prefabricated external wall panel and the beam.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the supporting component for connecting the prefabricated external wall panels is provided, so that the problems that the supporting component is inconvenient to adjust, complex in construction operation and the like in the prior art are solved; still provide a connection structure of prefabricated side fascia simultaneously to support component salient that exists among the solution prior art influences beautifully in indoor, and support component fire prevention rust-resistant treatment is troublesome scheduling problem.
In order to realize the purpose, the utility model discloses the technical scheme who takes does:
the utility model provides a prefabricated supporting component who hangs wallboard outward, includes wallboard built-in fitting, the dark bracket of beam-ends and supporting screw, the dark bracket of beam-ends includes the backup pad of horizontal direction and fixes the anchor muscle of the first end bottom surface of backup pad, supporting screw's bottom is fixed the second end of backup pad, the wallboard built-in fitting includes the horizontal plate and fixes strengthening rib on the horizontal plate top surface, the bottom surface pressure of horizontal plate is in on supporting screw's the top surface.
Preferably, the supporting plate is provided with a fixing hole, and the bottom end of the supporting screw rod is inserted into the fixing hole.
Preferably, a fastening nut coaxial with the fixing hole is further arranged above the fixing hole of the supporting plate.
Preferably, the fixing device further comprises a fastening nut, and the fastening nut is arranged on the supporting screw above the fixing hole.
Preferably, two side edges of the supporting plate extend towards the bottom side to form side wings, and anchoring ribs are fixed on the two side wings below the first end of the supporting plate.
The utility model also discloses a connection structure of prefabricated external wallboard, including prefabricated external wallboard and roof beam, the roof beam is composite beam or full precast beam, prefabricated external wallboard bottom side through foretell supporting component with the roof beam links together, the anchor muscle of the first end of backup pad and bottom side is pre-buried in the top side concrete of roof beam, the second end of backup pad extends to in the bottom surface below of prefabricated external wallboard, the anchor of wallboard built-in fitting is in the prefabricated external wallboard bottom concrete just the bottom surface of horizontal plate exposes, the bottom surface of horizontal plate is pressed on the top surface of supporting screw.
Preferably, the composite beam comprises a cast-in-place part and a prefabricated part, and the anchoring ribs at the first end and the bottom side of the support plate are embedded in concrete at the top side of the cast-in-place part.
Preferably, the outdoor side of the prefabricated external wall panel is longer than the indoor side to form a step-shaped notch, and the wall panel embedded part is anchored in the indoor side concrete of the step-shaped notch.
Preferably, one end, close to the prefabricated external wall panel, of the top surface of the prefabricated part extends upwards to form a reverse sill, and the height of the reverse sill is equal to that of the cast-in-place part.
The technical scheme of the utility model the beneficial technological effect who gains is:
1. according to the scheme, the wallboard embedded part is anchored in concrete at the bottom side of the prefabricated external wallboard, the beam end hidden bracket is anchored in concrete of a beam, then the prefabricated external wallboard is hoisted, the wallboard embedded part at the bottom side of the prefabricated external wallboard is placed on the supporting screw rod on the beam end hidden bracket, and the functions that the bottom of the prefabricated external wallboard is placed on the beam and the load of an external wallboard is transferred to a structural part are realized through the supporting assembly; the operation of this supporting component site operation is very simple, only needs to install supporting screw on the dark bracket of beam-ends, then shelves the wallboard built-in fitting on supporting screw, does not need the meticulous operation, has certain tolerance nature, and the practicality is strong.
2. In the connecting structure of the prefabricated external wall panel and the beam, the bottom of the external wall panel is reliably connected with the beam through the supporting assembly, and the top of the external wall panel is in limit connection with the main structure body, so that a suspended flexible connecting structure is formed, and the connecting structure has enough bearing capacity and rigidity and has the displacement capability of adapting to the main structure; and the supporting components are all anchored in the concrete, so that the requirements of corrosion resistance, rust resistance and fire resistance can be met.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation.
FIG. 1 is a schematic perspective view of a support assembly according to embodiment 1;
FIG. 2 is a schematic perspective view of a support assembly according to embodiment 2;
fig. 3 is a vertical sectional view of a coupling structure of a prefabricated external wall panel and a composite girder according to example 3;
reference numerals: 01-supporting component, 1-supporting plate, 2-supporting screw rod, 3-horizontal plate, 4-reinforcing rib, 5-fastening nut, 7-side wing, 8-triangular reinforcing rib, 9-anchoring rib, 02-prefabricated external wall panel, 03-prefabricated floor slab, 04-superposed beam, 41-prefabricated part, 42-cast-in-place part and 43-reverse ridge.
Detailed Description
The present invention will be described in detail with reference to the drawings, which are provided for illustrative and explanatory purposes only and should not be construed as limiting the scope of the present invention in any way. Furthermore, features from embodiments in this document and from different embodiments may be combined accordingly by a person skilled in the art from the description in this document.
Example 1
Referring to fig. 1, the supporting assembly 01 for installing the prefabricated external wall panel 02 in this embodiment includes a wall panel embedded part, a beam-end hidden bracket and a supporting screw rod 2, wherein the beam-end hidden bracket includes a supporting plate 1 in a horizontal direction and an anchoring rib 8 fixed on a bottom surface of a first end of the supporting plate 1, a bottom of the supporting screw rod 2 is fixed on a second end of the supporting plate 1, the wall panel embedded part includes a horizontal plate 3 and a reinforcing rib 4 fixed on a top surface of the horizontal plate 3, and a bottom surface of the horizontal plate 3 is pressed on a top surface of the supporting screw rod 2. In this embodiment, a fixing hole is formed in the support plate 1, the bottom end of the support screw 2 is inserted into the fixing hole, and a fastening nut 5 coaxial with the fixing hole is welded above the fixing hole of the support plate 1. Wherein, the fixed orifices can be provided with the internal thread hole, and the bottom of supporting screw 2 can be connected with the fixed orifices screw thread like this. In the embodiment, the supporting screw rod 2 is convenient to install during site construction; the height position between the supporting screw rod 2 and the supporting plate 1 can be adjusted on site, which is equivalent to the height position between the external wall panel and the beam can be adjusted within a certain range; by providing the fastening nut 5, the reliability of the connection between the support screw 2 and the support plate 1 is enhanced. In other embodiments, the bottom end of the support screw 2 may be welded directly to the second end upper surface of the support plate 1, thus eliminating the need for further installation of the support screw 2 on site and reducing height adjustability.
In another embodiment, the bottom of the fastening nut 5 may be provided with a spacer having an area larger than that of the nut, so that the contact area between the fastening nut 5 and the support plate 1 can be increased, and deformation caused by local stress concentration on the support plate 1 can be avoided; in other embodiments, the fastening nut 5 is not welded to the support plate 1, but is arranged on the support screw 2 above the fastening hole, so that the same function can be achieved.
Referring to fig. 1, triangular reinforcing ribs 8 are fixed to the bottom surface of the second end of the support plate 1, so that the strength of the support plate 1 can be enhanced.
Example 2
Referring to fig. 2, the supporting member 01 of the present embodiment is different from the supporting member 01 of embodiment 1 in that: two side edges of the supporting plate 1 extend towards the bottom side to form side wings 7, and anchoring ribs 8 are fixed on the two side wings 7 below the first end of the supporting plate 1. This enhances the strength of the support plate 1 as a whole and enhances the integrity of the connection assembly.
Example 3
Referring to fig. 3, the connection structure of the prefabricated external wall panel 02 in this embodiment includes a prefabricated external wall panel 02 and a composite beam 04, the composite beam 04 includes a prefabricated part 41 at the bottom and a cast-in-place part 42 at the upper part, the top of the prefabricated wall panel is connected with the composite beam 04 through a support assembly 01 shown in embodiment 1, and anchor bars at the first end and the bottom side of a support plate are embedded in the concrete at the top side of the cast-in-place part of the composite beam, the second end of the support plate extends to the lower side of the bottom surface of the prefabricated external wall panel, the embedded part of the wall panel is anchored in the concrete at the bottom of the prefabricated external wall panel, the bottom surface of the horizontal plate is exposed, and the bottom surface of the.
Referring to fig. 3, in this embodiment, a step-shaped notch is formed when the outdoor side of the prefabricated external wall panel is longer than the indoor side, and the embedded part of the wall panel is anchored in the indoor concrete of the step-shaped notch.
With continued reference to fig. 3, in another modified embodiment, an end of the top surface of the prefabricated part 41 near the prefabricated external wall panel 02 extends upward to form a reverse threshold 43, and the height of the reverse threshold 43 is equal to the height of the cast-in-place part 42. By the arrangement, in the concrete of the cast-in-place part 42 of the cast-in-place beam 04, the reverse ridges 43 serve as the outer templates of the cast-in-place part 42, the construction workload of the site templates is reduced, and the construction efficiency is improved.
Referring to fig. 3, the embodiment further includes a precast floor slab 03, wherein a bottom surface of one end of the precast floor slab 03 is provided with a step, a bottom surface of the step is lapped on a top surface of the precast portion 41 of the composite beam 04, and the cast-in-place portion 42 and cast-in-place concrete of the step are connected into a whole.
The construction steps of the prefabricated external wall panel 02 and the composite beam 04 in this embodiment substantially include: firstly, hoisting and positioning a prefabricated part 41 of a superposed beam 04, and arranging a beam end hidden bracket and a support screw rod above the prefabricated part; secondly, hoisting the lower prefabricated external wall panel 02, connecting the prefabricated external wall panel with the superposed beam 04, and hoisting and positioning the prefabricated floor panel 03; thirdly, hoisting the prefabricated external wall panel 02, then positioning and arranging an inclined support, and pressing a horizontal plate on the upper surface of the support screw; and fourthly, pouring concrete at the step of the prefabricated floor slab 03 and the cast-in-place part 42 of the superposed beam 04, pouring concrete at the support screw rod, and maintaining and forming.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.