CN210263416U - Rotary type precast concrete external wallboard connecting node structure in steel structure - Google Patents
Rotary type precast concrete external wallboard connecting node structure in steel structure Download PDFInfo
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- CN210263416U CN210263416U CN201920805475.6U CN201920805475U CN210263416U CN 210263416 U CN210263416 U CN 210263416U CN 201920805475 U CN201920805475 U CN 201920805475U CN 210263416 U CN210263416 U CN 210263416U
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Abstract
The utility model relates to a rotary precast concrete external wall panel connection node structure in steel structure, the connection node structure comprises a precast concrete external wall panel, the precast concrete external wall panel is connected with the main body structure through two groups of lower node structures which are positioned on the same horizontal line and two groups of upper node structures which are positioned on the same horizontal line, the lower node structure is fixedly connected with the precast concrete external wall panel and a lower node steel beam at the same time, and the lower node structure is fixed with the lower node steel beam through a pre-buried connection structure; the upper node structure is fixedly connected with the precast concrete external wall-hung panel and the upper node steel beam; two groups of bearing node bracket structures are arranged between the two groups of lower node structures, and each group of bearing node bracket structures are close to the lower node structures on the corresponding side; the utility model discloses make the wallboard elevation adjustable, the atress is simple clear and definite, the site operation installation of being convenient for.
Description
Technical Field
The utility model relates to a rotation type precast concrete externally-hung wallboard connected node structure in steel construction belongs to assembled structure technical field.
Background
The prefabricated concrete external wall panel integrates the functions of enclosure, decoration, water prevention and heat preservation, adopts factory production and assembly construction, has the characteristics of high installation speed, controllable quality, good durability, convenience in maintenance and repair and the like, and accords with the policy of the national policy of vigorously developing assembly buildings.
China provides relevant regulations on design, processing, construction and acceptance of the prefabricated concrete external wall panel in part of standards in the field of prefabricated concrete buildings, such as 'technical Standard for prefabricated concrete buildings' GB/T51231-2016 and 'technical Specification for prefabricated concrete structures' JGJ 1-2014.
At present, with the vigorous development of fabricated buildings in China, the precast concrete externally-hung wall panels are widely applied, most of the precast concrete externally-hung wall panels are applied to concrete structure buildings, node methods in steel structure buildings are rare, and even if the node methods are applied to part of the steel structure buildings, the construction is complicated, and the structure is complex.
SUMMERY OF THE UTILITY MODEL
The utility model provides a rotation type precast concrete externally-hung wallboard connected node structure in steel construction for the wallboard elevation is adjustable, and the atress is simple clear and definite, the site operation installation of being convenient for.
The utility model provides a technical scheme that its technical problem adopted is:
a rotary type connecting node structure of a precast concrete external wall panel in a steel structure comprises the precast concrete external wall panel, wherein the precast concrete external wall panel is connected with a main body structure through two groups of lower node structures and two groups of upper node structures, the two groups of lower node structures are positioned on the same horizontal line;
the upper node structure is fixedly connected with the precast concrete external wall-hung panel and the upper node steel beam;
two groups of bearing node bracket structures are arranged between the two groups of lower node structures, and each group of bearing node bracket structures are close to the lower node structures on the corresponding side;
as a further preferred aspect of the present invention, the upper node structure and the lower node structure are the same, and they are arranged in a mirror image manner;
the upper node structure comprises an L-shaped upper node tie bolt, the vertical part of the upper node tie bolt is embedded in the precast concrete external wall panel, the transverse part of the upper node tie bolt extends out of the precast concrete external wall panel, a first upper node steel backing plate is sleeved on the transverse part of the upper node tie bolt, the first upper node steel backing plate is embedded in the precast concrete external wall panel, and a first upper node stainless steel sliding member is sleeved on the transverse part of the upper node tie bolt and is attached to the first upper node steel backing plate; the upper node angle steel is L-shaped, the vertical part of the upper node angle steel is sleeved on the horizontal part of the upper node tie bolt and is attached to the first upper node stainless steel sliding piece, the vertical part of the upper node angle steel is opposite to the first upper node stainless steel sliding piece, a second upper node steel backing plate and an upper node tie nut are sequentially arranged on one side of the vertical part of the upper node angle steel, the second upper node stainless steel sliding piece, the second upper node steel backing plate and the upper node tie nut are all sleeved on the horizontal part of the upper node tie bolt, and the upper node tie nut is rotated to realize fastening;
the transverse part of the upper node angle steel is connected with the upper node steel beam through an angle welding seam;
the lower node structure comprises an L-shaped lower node tie bolt, the vertical part of the lower node tie bolt is embedded in the precast concrete external wall panel, the transverse part of the lower node tie bolt extends out of the precast concrete external wall panel, a first lower node steel backing plate is sleeved on the transverse part of the lower node tie bolt, the first lower node steel backing plate is partially embedded in the precast concrete external wall panel, and a first lower node stainless steel sliding piece is sleeved on the transverse part of the lower node tie bolt and is simultaneously attached to the first lower node steel backing plate; the lower node angle steel is L-shaped, the vertical part of the lower node angle steel is sleeved on the transverse part of the lower node tie bolt and is attached to the first lower node stainless steel sliding piece, the vertical part of the lower node angle steel is opposite to one side of the first lower node stainless steel sliding piece, a second lower node steel backing plate and a lower node tie nut are sequentially arranged on one side of the vertical part of the lower node angle steel, the second lower node stainless steel sliding piece, the second lower node steel backing plate and the lower node tie nut are all sleeved on the transverse part of the lower node tie bolt, and the lower node tie nut is rotated to realize fastening;
the transverse part of the lower node angle steel is fixed with the lower node steel beam through the embedded connection structure;
as a further preferred feature of the present invention, the pre-buried connection structure includes a lower-node floor pre-buried steel plate buried in the lower-layer concrete floor, one side of the lower-node floor pre-buried steel plate is welded to the lower-node structure, and the other side of the lower-node floor pre-buried steel plate is fixed with at least one lower-node floor pre-buried steel bar, and the lower-node floor pre-buried steel bar is welded to the upper flange of the lower-node steel beam;
as a further preference of the utility model, a long circular hole is arranged at the center of the vertical part of the upper node angle steel, the long side direction of the long circular hole is parallel to the precast concrete external wall-hung panel, the transverse part of the upper node tie bolt passes through the center of the long circular hole, and the transverse part of the upper node tie bolt and the two ends of the long circular hole are respectively provided with a distance of 5 mm;
a long circular hole is formed in the center of the vertical part of the lower node angle steel, the long side direction of the long circular hole is parallel to the prefabricated concrete external wall-hanging plate, the transverse part of the lower node tie bolt penetrates through the center of the long circular hole, and the transverse part of the lower node tie bolt and the two ends of the long circular hole are respectively provided with a distance of 5 mm;
as a further preference of the utility model, the bearing node bracket structure comprises an L-shaped bracket embedded steel plate, the right-angle opening of the L-shaped bracket embedded steel plate faces the precast concrete external wall-hung panel, and a distance is reserved between the transverse part of the bracket embedded steel plate and the lower concrete floor; fixing bracket embedded steel bars on the transverse part and the vertical part of the bracket embedded steel plate respectively, and inserting and embedding the bracket embedded steel bars in brackets of the precast concrete external wall panel to realize the fixed connection of the bracket embedded steel plate and the precast concrete external wall panel;
mounting bracket embedded bolt connecting pieces at the parts of the prefabricated concrete external wall panels, which are provided with the bracket embedded steel plates, wherein one end of each bearing bolt is screwed into each bracket embedded bolt connecting piece, and the other end of each bearing bolt props against the lower concrete floor;
embedding a bearing node floor embedded steel plate in a lower concrete floor, wherein the other end of a bearing bolt props against one side of the bearing node floor embedded steel plate, the other side of the bearing node floor embedded steel plate is vertically subjected to plug welding of at least one bearing node floor embedded steel bar, and the bearing node floor embedded steel bar is simultaneously welded on the upper flange of a lower node steel beam;
through above technical scheme, for prior art, the utility model discloses following beneficial effect has:
1. the precast concrete external wallboard of the utility model can rotate, and can rotate relative to the main structure under the action of earthquake or wind load, so as to adapt to the deformation of the main structure;
2. the connection form of the direct fixation of the upper node structure and the upper node steel beam and the indirect fixation of the lower node structure and the lower node steel beam is a more innovative way in steel structure buildings, so that the connection can be stable, and the connection structure is simplified;
3. the precast concrete external wall panel can release the node internal force generated by the self temperature action, so that no additional internal force is generated;
4. the four node tie bolts and the two bearing bolts are arranged, the bearing bolts are not connected with the surface of the lower node steel beam, and the free rotation of the precast concrete external wall panel can be realized;
5. long round holes are formed in the center positions of the vertical parts of the four node angle steels, and the distances of 5mm are reserved between the transverse parts of the node tie bolts and the two ends of the long round holes respectively, so that the node tie bolts can conveniently move up and down in the long round holes and can horizontally move to a certain degree;
6. the design of the long round holes can realize the control of the rotation amount of the precast concrete external wallboard by controlling the aperture and the length of the long round holes;
7. the setting of bearing bolt for vertical elevation can be regulated and control, the site operation of being convenient for.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic overall structure diagram of a preferred embodiment of the present invention;
fig. 2 is a schematic view of a lower node structure of the preferred embodiment of the present invention;
fig. 3 is a schematic view of a lower node angle steel structure according to a preferred embodiment of the present invention, in which 3a is a front view and 3b is a side view;
FIG. 4 is a schematic diagram of the upper node structure of the preferred embodiment of the present invention;
fig. 5 is a schematic view of an upper node angle steel structure according to the preferred embodiment of the present invention, wherein 5a is a front view and 5b is a side view;
fig. 6 is an overall schematic view of the structure of the load-bearing node corbel according to the preferred embodiment of the present invention;
fig. 7 is a structural schematic view of a part of a corbel structure of a load-bearing node according to a preferred embodiment of the present invention, wherein 7a is a front view and 7b is a side view;
fig. 8 is a schematic diagram of a pre-buried connection structure according to a preferred embodiment of the present invention, in which 8a is a top view and 8b is a side view.
In the figure: 1 is a precast concrete external wallboard, 2 is a lower node angle steel, 3 is a lower layer concrete floor, 4 is a lower node steel beam, 5 is a lower node tie bolt, 6 is a first lower node steel backing plate, 7 is a first lower node stainless steel sliding member, 8 is a lower node tie nut, 9 is a lower node floor embedded steel plate, 10 is a lower node floor embedded steel bar, 11 is an upper node steel beam, 12 is a first upper node steel backing plate, 13 is an upper node angle steel, 14 is an upper node tie nut, 15 is a first upper node stainless steel sliding member, 16 is a second upper node steel backing plate, 17 is an upper node tie bolt, 18 is a bearing node bracket structure, 19 is a bracket embedded steel bar, 20 is a bracket embedded steel plate, 21 is a bracket embedded bolt connecting member, 22 is a bearing bolt, 23 is a bearing node embedded floor steel plate, 24 is a bearing node embedded steel bar, 25 is a second lower node steel backing plate, second lower node stainless steel glide 26 and second upper node stainless steel glide 27.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1 to 8, the present invention includes the following characteristic components: 1 is a precast concrete external wallboard, 2 is a lower node angle steel, 3 is a lower layer concrete floor, 4 is a lower node steel beam, 5 is a lower node tie bolt, 6 is a first lower node steel backing plate, 7 is a first lower node stainless steel sliding member, 8 is a lower node tie nut, 9 is a lower node floor embedded steel plate, 10 is a lower node floor embedded steel bar, 11 is an upper node steel beam, 12 is a first upper node steel backing plate, 13 is an upper node angle steel, 14 is an upper node tie nut, 15 is a first upper node stainless steel sliding member, 16 is a second upper node steel backing plate, 17 is an upper node tie bolt, 18 is a bearing node bracket structure, 19 is a bracket embedded steel bar, 20 is a bracket embedded steel plate, 21 is a bracket embedded bolt connecting member, 22 is a bearing bolt, 23 is a bearing node embedded floor steel plate, 24 is a bearing node embedded steel bar, 25 is a second lower node steel backing plate, second lower node stainless steel glide 26 and second upper node stainless steel glide 27.
Fig. 1 shows that the utility model discloses a rotary precast concrete external wallboard connected node structure in steel construction, including precast concrete external wallboard, precast concrete external wallboard is connected with the major structure through two sets of lower node structures that are located the same horizontal line, two sets of upper node structures that are located the same horizontal line, lower node structure is simultaneously with precast concrete external wallboard, lower node girder steel fixed connection, and lower node structure is fixed with lower node girder steel through pre-buried connection structure;
the upper node structure is fixedly connected with the precast concrete external wall-hung panel and the upper node steel beam;
two groups of bearing node bracket structures are arranged between the two groups of lower node structures, and each group of bearing node bracket structures are close to the lower node structures on the corresponding side;
example 1:
as shown in fig. 2, the lower node structure includes an L-shaped lower node tie bolt, a vertical portion of which is embedded in the precast concrete external wall panel, a horizontal portion of which extends out of the precast concrete external wall panel, a first lower node steel backing plate which is sleeved on the horizontal portion of the lower node tie bolt and is embedded in the precast concrete external wall panel, and a first lower node stainless steel sliding member which is sleeved on the horizontal portion of the lower node tie bolt and is attached to the first lower node steel backing plate; the lower node angle steel is L-shaped, the vertical part of the lower node angle steel is sleeved on the transverse part of the lower node tie bolt and is attached to the first lower node stainless steel sliding piece, the vertical part of the lower node angle steel is opposite to one side of the first lower node stainless steel sliding piece, a second lower node steel backing plate and a lower node tie nut are sequentially arranged on one side of the vertical part of the lower node angle steel, the second lower node stainless steel sliding piece, the second lower node steel backing plate and the lower node tie nut are all sleeved on the transverse part of the lower node tie bolt, and the lower node tie nut is rotated to realize fastening;
the transverse part of the lower node angle steel is fixed with the lower node steel beam through an embedded connecting structure, and the structural composition of the embedded connecting structure can be explained in fig. 8;
the embedded connection structure comprises a lower node floor embedded steel plate embedded in a lower layer concrete floor, one side of the lower node floor embedded steel plate is welded with the lower node structure, the other side of the lower node floor embedded steel plate is fixed with at least one lower node floor embedded steel bar, and the lower node floor embedded steel bar is welded with the upper flange of the lower node steel beam;
as shown in fig. 3, a long circular hole is formed in the center of the vertical part of the lower node angle steel, the long side direction of the long circular hole is parallel to the precast concrete external wall-hung panel, the transverse part of the lower node tie bolt penetrates through the center of the long circular hole, and a distance of 5mm is reserved between the transverse part of the lower node tie bolt and two ends of the long circular hole respectively.
The long round hole is formed in the center of the vertical part of the lower node angle steel, and the distance of 5mm is reserved between the transverse part of the node tie bolt and the two ends of the long round hole respectively, so that the node tie bolt can conveniently move up and down in the long round hole, and the horizontal movement of the node tie bolt in a certain degree can be realized.
Example 2:
as shown in fig. 4, the upper node structure includes an L-shaped upper node tie bolt, a vertical portion of which is embedded in the precast concrete outer-hanging wall panel, a horizontal portion of which extends out of the precast concrete outer-hanging wall panel, a first upper node steel backing plate which is sleeved on the horizontal portion of the upper node tie bolt and is embedded in the precast concrete outer-hanging wall panel, and a first upper node stainless steel sliding member which is sleeved on the horizontal portion of the upper node tie bolt and is attached to the first upper node steel backing plate; the upper node angle steel is L-shaped, the vertical part of the upper node angle steel is sleeved on the horizontal part of the upper node tie bolt and is attached to the first upper node stainless steel sliding piece, the vertical part of the upper node angle steel is opposite to the first upper node stainless steel sliding piece, a second upper node steel backing plate and an upper node tie nut are sequentially arranged on one side of the vertical part of the upper node angle steel, the second upper node stainless steel sliding piece, the second upper node steel backing plate and the upper node tie nut are all sleeved on the horizontal part of the upper node tie bolt, and the upper node tie nut is rotated to realize fastening;
the transverse part of the upper node angle steel is welded with the upper node steel beam;
as shown in fig. 5, a long circular hole is formed in the center of the vertical part of the upper node angle steel, the long side direction of the long circular hole is parallel to the precast concrete external wall-hung panel, the transverse part of the upper node tie bolt penetrates through the center of the long circular hole, and a distance of 5mm is reserved between the transverse part of the upper node tie bolt and two ends of the long circular hole respectively;
the center of the vertical part of the upper node angle steel is provided with a long circular hole, and the distance of 5mm is reserved between the horizontal part of the node tie bolt and the two ends of the long circular hole respectively, so that the node tie bolt can move up and down in the long circular hole conveniently, and the horizontal movement of the node tie bolt in a certain degree can be realized.
Example 3:
as shown in fig. 6, the load-bearing node bracket structure includes an L-shaped bracket embedded steel plate, a right-angle opening of which faces the precast concrete external wall-hung panel, and a distance is left between a transverse portion of the bracket embedded steel plate and a lower concrete floor; fixing bracket embedded steel bars on the transverse part and the vertical part of the bracket embedded steel plate respectively, and inserting and embedding the bracket embedded steel bars in brackets of the precast concrete external wall panel to realize the fixed connection of the bracket embedded steel plate and the precast concrete external wall panel;
as shown in fig. 7, bracket embedded bolt connectors are installed at the parts of the prefabricated concrete external wall panels where the bracket embedded steel plates are arranged, one ends of the bearing bolts are screwed into the bracket embedded bolt connectors, and the other ends of the bearing bolts abut against the lower concrete floor;
embedding a bearing node floor embedded steel plate in a lower concrete floor, wherein the other end of a bearing bolt props against one side of the bearing node floor embedded steel plate, the other side of the bearing node floor embedded steel plate is vertically subjected to plug welding of at least one bearing node floor embedded steel bar, the bearing node floor embedded steel bar is simultaneously welded on the upper flange of a lower node steel beam, and the connecting structure can be explained in the same way in the figure 8;
the bearing bolt is not connected with the surface of the lower node steel beam, so that the free rotation of the precast concrete external wall panel can be realized;
meanwhile, due to the arrangement of the bearing bolts, the vertical elevation can be regulated and controlled, and the site construction is facilitated.
The construction method of the connection node structure comprises the following steps:
the first step is as follows: vertically plug-welding a lower node floor embedded steel plate and one end of a lower node floor embedded steel bar, and welding the other end of the lower node floor embedded steel bar and the upper flange of a lower node steel beam;
the embedded steel plate of the bearing node floor and the embedded steel bar of the bearing node floor are vertically plug-welded, the other end of the embedded steel bar of the bearing node floor is welded with the upper flange of the lower node steel beam, and the lower layer concrete floor is poured;
the second step is that: the transverse part of the upper node angle steel is connected with the upper node steel beam through an angle welding seam, and the transverse part of the lower node angle steel is connected with the lower node floor slab embedded steel plate through an angle welding seam;
the third step: one end of a bearing bolt is screwed into the bracket embedded bolt connecting piece, the precast concrete external wallboard is hoisted to a specified installation position, the transverse part of the lower node drawknot bolt penetrates through a long round hole reserved on the vertical part of the lower node angle steel, and the transverse part of the upper node drawknot bolt penetrates through a long round hole reserved on the vertical part of the upper node angle steel;
the fourth step: rotating the bearing bolt, controlling the elevation value of the precast concrete external wallboard, and placing the other end of the bearing bolt on the surface of the embedded steel plate of the bearing node floor slab when the elevation value meets the set value;
the fifth step: a first upper node steel backing plate and a second upper node steel backing plate are respectively arranged on two sides of the vertical part of the upper node angle steel, wherein the side wall part of the first upper node steel backing plate is embedded into the precast concrete external wall-hanging panel in advance, and a first upper node stainless steel sliding part and a second upper node stainless steel sliding part are respectively arranged between the first upper node steel backing plate and the vertical part of the upper node angle steel and between the second upper node steel backing plate and the vertical part of the upper node angle steel;
respectively arranging a first lower node steel backing plate and a second lower node steel backing plate on two sides of the vertical part of the lower node angle steel, wherein the side wall part of the first lower node steel backing plate is embedded into the precast concrete external wall-hanging panel in advance, and a first lower node stainless steel sliding piece and a second lower node stainless steel sliding piece are respectively arranged between the first lower node steel backing plate and the vertical part of the lower node angle steel and between the second lower node steel backing plate and the vertical part of the lower node angle steel;
an upper node tie nut is sleeved on the transverse part of the upper node tie bolt, and the upper node tie nut is rotated to fix the upper node angle steel and the precast concrete external wall panel;
and the lower node drawknot nut is sleeved on the transverse part of the lower node drawknot bolt, and the lower node angle steel and the precast concrete external wall panel are fixed by rotating the lower node drawknot nut.
Compared with the traditional method, the utility model has simple structure, clear force transmission, adjustable vertical elevation and convenient site construction;
the wall plate is provided with four node tie bolts and two bearing bolts respectively, the bearing bolts only bear the action of vertical pressure, and can be separated from the main structure when the wall plate rotates;
the vertical part of upper and lower node angle steel is provided with the slotted hole, and its aperture is greater than drawknot bolt 10mm, and the drawknot bolt can reciprocate in the downthehole, and can take place the horizontal of certain degree and move, guarantees that the wallboard can rotate under earthquake or wind load, and the rotation volume of prefabricated concrete externally-hung wallboard can be controlled to the aperture and the length of accessible control slotted hole during the design.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The meaning of "and/or" as used herein is intended to include both the individual components or both.
The term "connected" as used herein may mean either a direct connection between components or an indirect connection between components via other components.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (5)
1. The utility model provides a rotation type precast concrete externally-hung wallboard connected node structure in steel construction, includes precast concrete externally-hung wallboard, its characterized in that: the precast concrete external wall panel is connected with the main body structure through two groups of lower node structures located on the same horizontal line and two groups of upper node structures located on the same horizontal line, the lower node structures are fixedly connected with the precast concrete external wall panel and the lower node steel beam at the same time, and the lower node structures are fixed with the lower node steel beam through the embedded connection structures;
the upper node structure is fixedly connected with the precast concrete external wall-hung panel and the upper node steel beam;
two sets of bearing node bracket structures are installed between two sets of lower node structures, and each set of bearing node bracket structure is close to the lower node structure of corresponding side.
2. The rotary precast concrete outer-hanging wall panel connection node structure in the steel structure of claim 1, characterized in that: the upper node structure and the lower node structure are the same, and the upper node structure and the lower node structure are arranged in a mirror image manner;
the upper node structure comprises an L-shaped upper node tie bolt, the vertical part of the upper node tie bolt is embedded in the precast concrete external wall panel, the transverse part of the upper node tie bolt extends out of the precast concrete external wall panel, a first upper node steel backing plate is sleeved on the transverse part of the upper node tie bolt, the first upper node steel backing plate is embedded in the precast concrete external wall panel, and a first upper node stainless steel sliding member is sleeved on the transverse part of the upper node tie bolt and is attached to the first upper node steel backing plate; the upper node angle steel is L-shaped, the vertical part of the upper node angle steel is sleeved on the horizontal part of the upper node tie bolt and is attached to the first upper node stainless steel sliding piece, the vertical part of the upper node angle steel is opposite to the first upper node stainless steel sliding piece, a second upper node steel backing plate and an upper node tie nut are sequentially arranged on one side of the vertical part of the upper node angle steel, the second upper node stainless steel sliding piece, the second upper node steel backing plate and the upper node tie nut are all sleeved on the horizontal part of the upper node tie bolt, and the upper node tie nut is rotated to realize fastening;
the transverse part of the upper node angle steel is connected with the upper node steel beam through an angle welding seam;
the lower node structure comprises an L-shaped lower node tie bolt, the vertical part of the lower node tie bolt is embedded in the precast concrete external wall panel, the transverse part of the lower node tie bolt extends out of the precast concrete external wall panel, a first lower node steel backing plate is sleeved on the transverse part of the lower node tie bolt, the first lower node steel backing plate is partially embedded in the precast concrete external wall panel, and a first lower node stainless steel sliding piece is sleeved on the transverse part of the lower node tie bolt and is simultaneously attached to the first lower node steel backing plate; the lower node angle steel is L-shaped, the vertical part of the lower node angle steel is sleeved on the transverse part of the lower node tie bolt and is attached to the first lower node stainless steel sliding piece, the vertical part of the lower node angle steel is opposite to one side of the first lower node stainless steel sliding piece, a second lower node steel backing plate and a lower node tie nut are sequentially arranged on one side of the vertical part of the lower node angle steel, the second lower node stainless steel sliding piece, the second lower node steel backing plate and the lower node tie nut are all sleeved on the transverse part of the lower node tie bolt, and the lower node tie nut is rotated to realize fastening;
the horizontal part of lower node angle steel is fixed with lower node girder steel through pre-buried connection structure.
3. The rotary precast concrete outer-hanging wall panel connection node structure in the steel structure of claim 1, characterized in that: the embedded connecting structure comprises a lower node floor embedded steel plate embedded in a lower layer concrete floor, one side of the lower node floor embedded steel plate is connected with the lower node structure in a welding mode, at least one lower node floor embedded steel bar is fixed to the other side of the lower node floor embedded steel plate, and the lower node floor embedded steel bar is connected with the upper flange of the lower node steel beam in a welding mode.
4. The rotary precast concrete outer-hanging wall panel connection node structure in the steel structure of claim 2, characterized in that: a long circular hole is formed in the center of the vertical part of the upper node angle steel, the long edge direction of the long circular hole is parallel to the prefabricated concrete external wall-hanging plate, the transverse part of the upper node tie bolt penetrates through the center of the long circular hole, and the transverse part of the upper node tie bolt and the two ends of the long circular hole are respectively provided with a distance of 5 mm;
and a long circular hole is formed in the center of the vertical part of the lower node angle steel, the long side direction of the long circular hole is parallel to the prefabricated concrete external wall-hanging plate, the transverse part of the lower node tie bolt penetrates through the center of the long circular hole, and the transverse part of the lower node tie bolt and the two ends of the long circular hole are respectively spaced by 5 mm.
5. The rotary precast concrete outer-hanging wall panel connection node structure in the steel structure of claim 1, characterized in that: the bearing node bracket structure comprises an L-shaped bracket embedded steel plate, a right-angle opening of the L-shaped bracket embedded steel plate faces to the precast concrete external wall-hung plate, and a distance is reserved between the transverse part of the bracket embedded steel plate and the lower concrete floor; fixing bracket embedded steel bars on the transverse part and the vertical part of the bracket embedded steel plate respectively, and inserting and embedding the bracket embedded steel bars in brackets of the precast concrete external wall panel to realize the fixed connection of the bracket embedded steel plate and the precast concrete external wall panel;
mounting bracket embedded bolt connecting pieces at the parts of the prefabricated concrete external wall panels, which are provided with the bracket embedded steel plates, wherein one end of each bearing bolt is screwed into each bracket embedded bolt connecting piece, and the other end of each bearing bolt props against the lower concrete floor;
the method comprises the steps that a bearing node floor embedded steel plate is embedded in a lower concrete floor, the other end of a bearing bolt abuts against one side of the bearing node floor embedded steel plate, at least one bearing node floor embedded steel bar is vertically plug-welded to the other side of the bearing node floor embedded steel plate, and the bearing node floor embedded steel bar is welded to the upper flange of a lower node steel beam.
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| CN110258815A (en) * | 2019-05-31 | 2019-09-20 | 南京长江都市建筑设计股份有限公司 | Rotary precast concrete out-hung panel connecting joint structure and construction method in steel construction |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258815A (en) * | 2019-05-31 | 2019-09-20 | 南京长江都市建筑设计股份有限公司 | Rotary precast concrete out-hung panel connecting joint structure and construction method in steel construction |
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