CN111395641A - Precast concrete external wallboard and construction method thereof - Google Patents
Precast concrete external wallboard and construction method thereof Download PDFInfo
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- CN111395641A CN111395641A CN202010154319.5A CN202010154319A CN111395641A CN 111395641 A CN111395641 A CN 111395641A CN 202010154319 A CN202010154319 A CN 202010154319A CN 111395641 A CN111395641 A CN 111395641A
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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
- E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
- E04C2/044—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of concrete
-
- 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
- E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
- E04C2/06—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres reinforced
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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
- E04C2/44—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose
- E04C2/46—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose specially adapted for making walls
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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
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/167—Tools or apparatus specially adapted for working-up plates, panels or slab shaped building elements
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Load-Bearing And Curtain Walls (AREA)
Abstract
The invention relates to a precast concrete external wallboard and a construction method thereof. The externally-hung wallboard can be directly hung on a main structure, the angle steel connecting piece is positioned on the externally-hung wallboard, matched with the connecting rod and welded on the embedded part in the concrete beam, and then fastened and welded with the fastening connecting piece through the nut, so that the quick positioning and installation of the externally-hung wallboard can be realized, the verticality and levelness adjusting time of the externally-hung wallboard is shortened, the construction process is simplified, the construction period is shortened, and the construction efficiency is improved.
Description
Technical Field
The invention relates to the technical field of construction, in particular to a precast concrete external wallboard and a construction method thereof.
Background
With the development of urban construction, the assembly type buildings in the building industry of China are continuously popularized, more and more buildings are built by using assembly type hanging plates, and external hanging wall plates are not used as construction projects of external maintenance structures.
The existing external wall panel usually has the problem of difficult installation and positioning, the external wall panel can not reach a preset position easily caused by the production thickness error of the hanging panel, and the hanging panel is not tightly jointed with the connecting piece; the hoisting point is not accurate, the hanging plate is easy to generate internal stress due to the wrong arrangement of the hoisting point, and irregular cracks along the vertical direction of the external wall board appear; the accumulated connection error of the external wall boards is large, so that irregular joints among the boards are easily caused, the appearance effect is poor, and the engineering quality and progress are influenced; the process is unreasonable, the installation sequence is unreasonable, the front face verticality and levelness adjusting time of the external wall panel is too long after the connecting piece is welded, and even the external wall panel is dismantled and welded again.
Disclosure of Invention
The invention aims to provide a precast concrete external wallboard and a construction method thereof.
The above object of the invention is achieved by the following technical scheme:
the utility model provides a precast concrete externally-hung wallboard, precast concrete externally-hung wallboard forms for concrete placement, pre-buried connecting reinforcement in the precast concrete externally-hung wallboard, the lifting hook of pre-buried two at least levels settings in precast concrete externally-hung wallboard upper end, the fastening coupling assembling of the pre-buried bearing bracket that two at least levels set up of the inboard lower extreme of precast concrete externally-hung wallboard and two at least levels settings, the fastening coupling assembling of two at least levels settings of pre-buried still on the inboard upper portion of precast concrete externally-hung wallboard.
By adopting the technical scheme, the angle steel connecting piece is firstly welded on the embedded part in the concrete beam after the precast concrete external wallboard is positioned, and then is fastened and welded with the fastening connecting piece, so that the fast positioning and installation of the external wallboard can be realized, the verticality and levelness adjusting time of the external wallboard is shortened, and the bearing oxhorn is used for bearing the weight of the precast concrete external wallboard and is welded and fixed with the embedded part in the concrete beam.
The invention is further configured to: the bearing bracket comprises a first vertical plate, the first vertical plate is fixedly connected with I-shaped steel at the same side, the lower end of the I-shaped steel is connected with a leveling device, the other side of the first vertical plate is vertically connected with a plurality of hook-shaped anchor rods, the anchor rods are embedded in the precast concrete external wall panel, and the outer side surface of the first vertical plate is flush with the inner side surface of the precast concrete external wall panel.
By adopting the technical scheme, the anchoring rods are embedded in the precast concrete outer-hanging wallboard, the supporting strength of the bearing bracket is improved, and the levelness of the precast concrete outer-hanging wallboard can be adjusted by the leveling device.
The invention is further configured to: the leveling device comprises a first internal thread pipe vertically connected with the lower end of the I-shaped steel, and the first internal thread pipe is in internal thread connection with an adjusting bolt.
Through adopting above-mentioned technical scheme, the volume of advancing of adjusting bolt in first internal thread pipe can be adjusted to precast concrete external wall panel level in convenient and fast ground to finely tuning.
The invention is further set that the fastening and connecting assembly comprises a fastening connecting piece and an angle steel connecting piece matched with the fastening connecting piece, the fastening connecting piece comprises a second vertical plate and an L-shaped connecting rod, one end of the connecting rod is provided with a thread, the connecting rod with one end provided with the thread vertically penetrates through the second vertical plate and is fixedly connected with the second vertical plate, the other end of the connecting rod is embedded in the precast concrete external wall-hanging plate, and the outer side surface of the second vertical plate is flush with the inner side surface of the precast concrete external wall-hanging plate.
By adopting the technical scheme, the fastening connecting piece is pre-embedded on the precast concrete external wallboard, after the precast concrete external wallboard is hoisted in place, the angle steel connecting piece is adapted to the fastening connecting piece and welded on the embedded piece in the concrete beam, and finally, the nut is screwed to the fastening connecting piece for welding; the problem that the fastening connecting piece and the angle steel connecting piece cannot be matched due to deviation is avoided, the adjusting time of the horizontal and vertical degrees of the precast concrete external wallboard is shortened, and the construction efficiency is improved.
The invention is further configured to: the angle steel connecting piece comprises a lower angle steel connecting piece and an upper angle steel connecting piece, wherein the lower angle steel connecting piece is used for adapting to a fastening connecting piece at the lower end of the precast concrete external wallboard, the upper angle steel connecting piece is used for adapting to a fastening connecting piece above the precast concrete external wallboard, the lower angle steel connecting piece comprises mutually perpendicular angle steels, a through vertical waist-shaped hole is formed in one side of each angle steel, and rib plates which are perpendicularly connected with the angle steels are arranged on two sides of each vertical waist; the upper angle steel connecting piece comprises angle steel perpendicular to each other, a through horizontal waist-shaped hole is formed in one side of the angle steel, and rib plates perpendicular to the angle steel are arranged on two sides of the horizontal waist-shaped hole.
Through adopting above-mentioned technical scheme, the vertical waist shape hole of lower angle steel connecting piece can finely tune it in vertical direction, and the horizontal waist shape hole of upper angle steel connecting piece can finely tune it in the horizontal direction, convenient better and fastening connection spare adaptation and welding.
The invention is further configured to: and a second internal thread pipe which is pre-embedded in the precast concrete external wall panel is arranged above the bearing bracket, and the second internal thread pipe is perpendicular to the precast concrete external wall panel.
Through adopting above-mentioned technical scheme, twist the supplementary bolt ring on the second internal thread pipe, through connecting rope and taut instrument on the supplementary bolt ring, the convenience is to the level of precast concrete externally-hung wallboard and the straightness's that hangs down adjustment.
The invention is further configured to: the lifting hook is n-shaped, the tail end of the lifting hook is bent upwards, and the top of the lifting hook is 8-10cm higher than the prefabricated concrete external wall panel.
By adopting the technical scheme, the pre-buried lifting hook on the precast concrete external wallboard is convenient for the hoisting work of the precast concrete external wallboard, the tail end of the lifting hook is bent upwards, and the connection strength of the lifting hook and the precast concrete external wallboard is improved.
The invention is further configured to: and a window opening and a door opening are reserved in the precast concrete external wall panel.
By adopting the technical scheme, the window opening and the door opening are reserved on the precast concrete external wallboard before construction, so that subsequent modification and hole breaking can be avoided, and the strength and firmness of the whole structure of the precast concrete external wallboard are ensured.
The construction method of the precast concrete external wallboard comprises the following steps:
popping up control lines on a precast concrete external wall-hanging plate and a concrete beam of a main structure;
screwing an auxiliary bolt ring on the second internal thread pipe, and hoisting the precast concrete external wallboard through a rope connected with a lifting hook to ensure that the precast concrete external wallboard is stably hoisted and positioned to a preset position;
thirdly, adjusting the level and the verticality of the precast concrete external wallboard through connecting ropes and tensioning tools on the auxiliary bolt rings and adjusting bolts on the bearing brackets;
welding the adjusting bolt of the bearing bracket and the embedded part in the concrete beam;
step five, inserting a fastening connecting piece at the lower end of the precast concrete external wallboard into an angle steel connecting piece, adjusting the level of the angle steel connecting piece, and welding the angle steel connecting piece with an embedded part in the concrete beam;
step six, after the welding seam of the angle steel connecting piece is finished, connecting the screw thread of the fastening connecting piece at the lower end of the precast concrete external wallboard with the nut, and screwing and welding the nut;
step seven, inserting a fastening connecting piece at the upper part of the precast concrete external wallboard into an upper angle steel connecting piece, adjusting the level of the upper angle steel connecting piece, and welding the upper angle steel connecting piece with an embedded part in the concrete beam;
step eight, after the welding seam of the upper angle steel connecting piece is finished, connecting a fastening connecting piece at the upper part of the precast concrete external wall board with a nut in a threaded manner, and screwing and welding the fastening connecting piece;
and step nine, removing the hoisting rope.
By adopting the technical scheme, the prefabricated concrete external wall panel is convenient and quick to mount in place, the hoisting point is accurate, and irregular cracks of the prefabricated concrete external wall panel are avoided; the angle steel connecting piece is adopted for welding, so that the positioning and adjusting time of the precast concrete external wall panel is greatly shortened, and the working efficiency is improved.
In conclusion, the beneficial technical effects of the invention are as follows:
1. according to the invention, the bearing bracket is arranged at the lower end of the precast concrete external wallboard, and the angle steel connecting piece is matched with the fastening connecting piece and then welded after the precast concrete external wallboard is positioned, so that the installation and adjustment time of the precast concrete external wallboard is reduced, the construction process is simplified, the project period is shortened, the engineering cost is saved, the construction quality is ensured, and good economic benefit and social benefit are generated.
2. The invention adopts the precast concrete external wall panel, which can improve the prefabrication rate of a factory, reduce the construction amount of a construction site and reduce the pollution of raised dust, noise and the like to the environment; the transportation is convenient, and the construction efficiency is improved.
Drawings
FIG. 1 is a schematic structural view of a precast concrete exterior wall panel according to the present invention;
FIG. 2 is a schematic view showing the construction of the prefabricated concrete outer panel according to the present invention after installation;
FIG. 3 is a schematic structural view of a load-bearing corbel of the present invention;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
FIG. 5 is a schematic view of the angle steel connecting piece structure of the present invention;
FIG. 6 is a schematic view of the angle steel connector structure of the present invention;
fig. 7 is a schematic view of a fastening connection of the present invention.
Figure 1, precast concrete outer wall panel; 2. a hook; 3. a load-bearing corbel; 31. a first vertical plate; 32. i-shaped steel; 33. a leveling device; 331. a first internally threaded tube; 332. adjusting the bolt; 34. an anchoring rod; 4. fastening the connecting assembly; 41. fastening a connecting piece; 411. a second vertical plate; 412. a connecting rod; 42. an angle steel connecting piece; 421. an angle steel connecting piece; 4211. A vertical waist-shaped hole; 422. an upper angle steel connecting piece; 4221. a horizontal waist-shaped hole; 5. a second internally threaded tube; 6. a window opening; 7. a door opening; 8. embedding parts in the concrete beam; a. angle steel; b. a rib plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, in a precast concrete external wallboard 1, the precast concrete external wallboard 1 is formed by pouring concrete, connecting steel bars are embedded in the precast concrete external wallboard 1, and the embedded connecting steel bars not only need to normally resist forces in normal use states such as earthquake force, self gravity and the like, but also need to ensure enough bending moment resistance and shearing force, so that adverse stress generated in the production hoisting process is prevented, and adverse factors such as cracks and fractures of components are avoided; the lifting hook 2 is embedded in the upper end of the precast concrete external wallboard 1, the lifting hook 2 is in an n shape, the tail end of the lifting hook 2 is bent upwards, the connection strength of the lifting hook 2 and the precast concrete external wallboard 1 is improved, the height of the top of the lifting hook 2, which is higher than the precast concrete external wallboard 1, is 8-10cm, the embedded lifting hook 2 on the precast concrete external wallboard 1 facilitates the hoisting work of the precast concrete external wallboard 1, and in order to guarantee the safety and hoisting safety of the precast concrete external wallboard 1 in the hoisting process, the lifting hook 2 strengthens the calculation of bearing force in the deepening design stage, and prevents accidental unhooking in the component hoisting process.
Two horizontally arranged bearing brackets 3 and two horizontally arranged fastening and connecting assemblies 4 are embedded at the lower end of the inner side of the prefabricated concrete external wallboard 1, the two horizontally arranged fastening and connecting assemblies 4 are also embedded at the upper part of the inner side of the prefabricated concrete external wallboard 1, and by arranging the bearing brackets 3 and the fastening and connecting assemblies 4, the bearing is carried out by the bearing brackets 3 after the prefabricated concrete external wallboard 1 is hoisted in place and installed, so that the safety design of the bearing brackets 3 is particularly important, and during deep design, the calculation of the bearing capacity of the bearing brackets 3 is emphasized, and the construction safety is ensured.
As shown in fig. 3 and 4, the load-bearing bracket 3 comprises a first vertical plate 31, an i-beam 32 is fixedly connected to the same side of the first vertical plate 31, the lower end of the i-beam 32 is connected with a leveling device 33, the leveling device 33 comprises a first internally threaded tube 331 vertically connected with the lower end of the i-beam 32, and the first internally threaded tube 331 is internally threaded with an adjusting bolt 332; a plurality of anchor rods 34 are connected rather than perpendicular to first riser 31 opposite side, and parallel arrangement's two-layer anchor rod 34 about this embodiment chooses for use, and every layer contains interval distribution's 3 anchor rods 34, and anchor rod 34 is pre-buried in precast concrete externally-hung wallboard 1, can have improved the support intensity of bearing bracket 3, and first riser 31 lateral surface and 1 medial surface parallel and level of precast concrete externally-hung wallboard.
The leveling device 33 can adjust the levelness of the precast concrete outer wallboard 1. The levelness of the precast concrete outer-hanging wall panel 1 can be finely adjusted conveniently and rapidly by adjusting the amount of the adjusting bolt 332 entering and exiting the first internal threaded tube 331.
As shown in fig. 7, the fastening and connecting assembly 4 includes a fastening connector 41 and an angle iron connector 42 adapted to the fastening connector 41, the fastening connector 41 includes a second vertical plate 411 and an L-shaped connecting rod 412, one end of the connecting rod 412 is threaded, the connecting rod 412 with one end of the threaded end vertically penetrates through the second vertical plate 411 and is fixedly connected to the second vertical plate 411, the other end of the connecting rod 412 is embedded in the prefabricated concrete external wall panel 1, and the outer side surface of the second vertical plate 411 is flush with the inner side surface of the prefabricated concrete external wall panel 1.
As shown in fig. 5 and 6, the angle steel connecting piece 42 includes a lower angle steel connecting piece 421 adapted to the fastening connecting piece 41 at the lower end of the precast concrete external wallboard 1, and an upper angle steel connecting piece 422 adapted to the fastening connecting piece 41 above the precast concrete external wallboard 1, the lower angle steel connecting piece 421 includes angle steels a perpendicular to each other, a through vertical waist-shaped hole 4211 is provided at one side of the angle steel a, and rib plates b perpendicular to the angle steel a are provided at two sides of the vertical waist-shaped hole 4211; the upper angle steel connecting piece 422 comprises angle steel a which are perpendicular to each other, a through horizontal waist-shaped hole 4221 is formed in one side of the angle steel a, and rib plates b which are perpendicular to the angle steel a are arranged on two sides of the horizontal waist-shaped hole 4221.
Pre-burying a fastening connecting piece 41 on the precast concrete external wall panel 1, after the precast concrete external wall panel 1 is hoisted in place, then matching an angle steel connecting piece 42 to the fastening connecting piece 41, welding the angle steel connecting piece 42 to an embedded piece 8 in a concrete beam, and finally screwing and welding by using a nut; the problem that the fastening connecting piece 41 and the angle steel connecting piece 42 cannot be matched due to deviation is avoided, the horizontal and verticality adjusting time of the precast concrete externally-hung wallboard 1 is shortened, the speed of installing the precast concrete externally-hung wallboard 1 is greatly improved, the vertical waist-shaped hole 4211 of the lower angle steel connecting piece 421 can be finely adjusted in the vertical direction, the horizontal waist-shaped hole 4221 of the upper angle steel connecting piece 422 can be finely adjusted in the horizontal direction, and the fastening connecting piece 41 can be matched and welded better and conveniently.
As shown in fig. 1 and 2, a second internal threaded pipe 5 pre-embedded in the precast concrete outer wallboard 1 is arranged above the bearing bracket 3, and the second internal threaded pipe 5 is perpendicular to the precast concrete outer wallboard 1. The auxiliary bolt ring is screwed on the second internal thread pipe 5, and the rope and the tensioning tool are connected on the auxiliary bolt ring, so that people can conveniently adjust the level and the verticality of the precast concrete external wallboard 1.
According to the design requirement, a window opening 6 and a door opening 7 can be reserved on the precast concrete external wall-hanging plate.
Fig. 2 is a schematic structural view of the prefabricated concrete outer wall panel after installation.
The construction method of the precast concrete external wallboard 1 comprises the following steps:
firstly, popping up control lines on a precast concrete external wall-hanging panel 1 and a concrete beam of a main structure;
secondly, screwing an auxiliary bolt ring on the second internal thread pipe 5, and hoisting the precast concrete external wallboard 1 through a rope connected with the lifting hook 2 to ensure that the precast concrete external wallboard 1 is stably hoisted and positioned to a preset position;
before hoisting, the position of a hoisting point for connecting a carrying pole beam on a truck crane with the lifting hook 2 is checked, so that the precast concrete external wall panel 1 is ensured to keep horizontal balance in the hoisting process, and irregular cracks along the vertical direction of the precast concrete external wall panel 1 are effectively prevented; enabling the precast concrete external wall panel 1 in lifting to be close to a preset position and be in a fine adjustment controllable range according to a control line;
thirdly, adjusting the level and the verticality of the precast concrete external wallboard 1 through connecting ropes and tensioning tools on the auxiliary bolt rings and adjusting bolts 332 on the bearing bracket 3; the leveling instrument is used for measuring the elevation and the levelness of the precast concrete externally-hung wallboard 1, the guiding rule is used for measuring the vertical and horizontal verticality, the square rule is used for aligning, the guiding rule is used for aligning and vertically aligning, the jack is matched, and the leveling instrument is slowly adjusted, so that the elevation, the levelness and the verticality of the component meet the design requirements.
Welding the adjusting bolt 332 of the bearing bracket 3 with the embedded part 8 in the concrete beam;
fifthly, inserting the fastening connecting piece 41 at the lower end of the precast concrete external wallboard 1 into the angle steel connecting piece 421, adjusting the level of the angle steel connecting piece 421, and welding the angle steel connecting piece with the embedded part 8 in the concrete beam;
step six, after the welding seam of the angle steel connecting piece 421 is finished, connecting the fastening connecting piece 41 at the lower end of the precast concrete external wall panel 1 with a nut in a threaded manner, and screwing and welding the nut;
step seven, penetrating the fastening connecting piece 41 at the upper part of the precast concrete external wallboard 1 into the upper angle steel connecting piece 422, adjusting the level of the upper angle steel connecting piece 422, and welding the upper angle steel connecting piece 422 with the embedded part 8 in the concrete beam;
step eight, after the welding seams of the upper angle steel connecting pieces 422 are finished, connecting the fastening connecting pieces 41 on the upper parts of the precast concrete external wall boards 1 with nuts in a threaded manner, and screwing and welding the nuts;
and step nine, removing the hoisting rope.
The construction method has the advantages that the prefabricated concrete external wall panel 1 is convenient and quick to mount in place, the hoisting point is accurate, and irregular cracks of the prefabricated concrete external wall panel 1 are avoided; the angle steel connecting piece 42 is adopted for welding, so that the positioning and adjusting time of the precast concrete external wall panel 1 is greatly reduced, and the working efficiency is improved.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (9)
1. The utility model provides a precast concrete externally-hung wallboard, its characterized in that, precast concrete externally-hung wallboard (1) forms for concrete placement, pre-buried connecting reinforcement in precast concrete externally-hung wallboard (1), pre-buried lifting hook (2) that two at least levels set up in precast concrete externally-hung wallboard (1) upper end, pre-buried bearing bracket (3) that two at least levels set up and the fastening coupling assembling (4) that two at least levels set up of precast concrete externally-hung wallboard (1) inboard lower extreme, the fastening coupling assembling (4) that two at least levels set up still are pre-buried on precast concrete externally-hung wallboard (1) inboard upper portion.
2. The precast concrete outer-hanging wallboard according to claim 1, wherein the bearing bracket (3) comprises a first vertical plate (31), the first vertical plate (31) is fixedly connected with an I-shaped steel (32) at the same side, the lower end of the I-shaped steel (32) is connected with a leveling device (33), the other side of the first vertical plate (31) is vertically connected with a plurality of hook-shaped anchor rods (34), the anchor rods (34) are embedded in the precast concrete outer-hanging wallboard (1), and the outer side surface of the first vertical plate (31) is flush with the inner side surface of the precast concrete outer-hanging wallboard (1).
3. The precast concrete outer wall panel according to claim 2, wherein the leveling device (33) comprises a first internally threaded tube (331) vertically coupled to the lower end of the i-beam (32), the first internally threaded tube (331) being internally threaded with an adjusting bolt (332).
4. The precast concrete outer-hanging wall panel according to claim 1, wherein the fastening and connecting assembly (4) comprises a fastening connector (41) and an angle iron connector (42) adapted thereto, the fastening connector (41) comprises a second vertical plate (411) and an L-shaped connecting rod (412), one end of the connecting rod (412) is threaded, the connecting rod (412) with one end of the thread vertically penetrates through the second vertical plate (411) and is fixedly connected with the second vertical plate (411), the other end of the connecting rod (412) is embedded in the precast concrete outer-hanging wall panel (1), and the outer side surface of the second vertical plate (411) is flush with the inner side surface of the precast concrete outer-hanging wall panel (1).
5. The precast concrete outer-hanging wall panel according to claim 4, wherein the angle steel connecting member (42) comprises a lower angle steel connecting member (421) for fitting the fastening connecting member (41) at the lower end of the precast concrete outer-hanging wall panel (1), an upper angle steel connecting member (422) for fitting the fastening connecting member (41) at the upper end of the precast concrete outer-hanging wall panel (1), the lower angle steel connecting member (421) comprises angle steels (a) which are perpendicular to each other, one side of the angle steel (a) is provided with a through vertical waist-shaped hole (4211), and both sides of the vertical waist-shaped hole (4211) are provided with rib plates (b) which are perpendicular to the angle steel (a); go up angle steel connecting piece (422) including mutually perpendicular's angle steel (a), angle steel (a) one side is equipped with horizontal waist shape hole (4221) that link up, horizontal waist shape hole (4221) both sides are equipped with floor (b) of being connected with angle steel (a) vertically.
6. The precast concrete outer-hanging wall panel according to claim 1, characterized in that a second internal threaded pipe (5) pre-embedded in the precast concrete outer-hanging wall panel (1) is provided above the bearing bracket (3), and the second internal threaded pipe (5) is perpendicular to the precast concrete outer-hanging wall panel (1).
7. The precast concrete outer wall panel according to claim 1, wherein the hook (2) is n-shaped, the end of the hook (2) is bent upward, and the top of the hook (2) is 8-10cm higher than the precast concrete outer wall panel.
8. The precast concrete outer wall panel according to claim 1, wherein a window opening (6) and a door opening (7) are reserved on the precast concrete outer wall panel (1).
9. A construction method of the precast concrete outer-hanging wall panel according to any one of claims 1 to 8, comprising the steps of:
firstly, popping up control lines on a precast concrete external wall-hanging plate (1) and a concrete beam of a main body structure;
screwing an auxiliary bolt ring on the second internal thread pipe (5), and hoisting the precast concrete external wallboard (1) through a rope connected with the lifting hook (2), so as to ensure that the precast concrete external wallboard (1) is stably hoisted and positioned to a preset position;
thirdly, adjusting the level and the verticality of the precast concrete external wallboard (1) through a connecting rope and a tensioning tool on the auxiliary bolt ring and an adjusting bolt (332) on the bearing bracket (3);
welding an adjusting bolt (332) of the bearing bracket (3) and an embedded part (8) in the concrete beam;
fifthly, a fastening connecting piece (41) at the lower end of the precast concrete external wallboard (1) penetrates through an angle steel connecting piece (421), the level of the angle steel connecting piece (421) is adjusted, and the angle steel connecting piece is welded with an embedded part (8) in the concrete beam;
step six, after the welding seam of the angle steel connecting piece (421) is finished, connecting a fastening connecting piece (41) at the lower end of the precast concrete external wall board (1) with a nut in a threaded manner, and screwing and welding the nut;
seventhly, inserting a fastening connecting piece (41) at the upper part of the precast concrete external wallboard (1) into an upper angle steel connecting piece (422), adjusting the level of the upper angle steel connecting piece (422), and welding the upper angle steel connecting piece with an embedded part (8) in the concrete beam;
step eight, after the welding seam of the upper angle steel connecting piece (422) is finished, connecting a fastening connecting piece (41) at the upper part of the precast concrete external wallboard (1) with a nut in a threaded manner, and screwing and welding the nut tightly;
and step nine, removing the hoisting rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010154319.5A CN111395641A (en) | 2020-03-07 | 2020-03-07 | Precast concrete external wallboard and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010154319.5A CN111395641A (en) | 2020-03-07 | 2020-03-07 | Precast concrete external wallboard and construction method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113356371A (en) * | 2021-06-24 | 2021-09-07 | 昌大建筑科技有限公司 | Construction method of assembled frame structure system |
| CN113356349A (en) * | 2021-06-24 | 2021-09-07 | 昌大建筑科技有限公司 | Assembled frame structure system |
| CN113356424A (en) * | 2021-06-24 | 2021-09-07 | 昌大建筑科技有限公司 | Construction method for prefabricating external wall panel |
| CN113653212A (en) * | 2021-08-24 | 2021-11-16 | 湖南省第六工程有限公司 | Waterproof construction method for joint partition of precast concrete cladding panel |
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| CN113653212A (en) * | 2021-08-24 | 2021-11-16 | 湖南省第六工程有限公司 | Waterproof construction method for joint partition of precast concrete cladding panel |
| CN115234004A (en) * | 2022-06-30 | 2022-10-25 | 中建三局集团有限公司 | Construction method and structure of three-side externally hung assembled wallboard with single overhanging H-shaped steel beam |
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