CN109281405B - Assembled interlayer arrangement concrete truss overhanging type building - Google Patents
Assembled interlayer arrangement concrete truss overhanging type building Download PDFInfo
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- CN109281405B CN109281405B CN201810950617.8A CN201810950617A CN109281405B CN 109281405 B CN109281405 B CN 109281405B CN 201810950617 A CN201810950617 A CN 201810950617A CN 109281405 B CN109281405 B CN 109281405B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/34—Extraordinary structures, e.g. with suspended or cantilever parts supported by masts or tower-like structures enclosing elevators or stairs; Features relating to the elastic stability
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Abstract
The invention relates to an assembled interlayer-arranged concrete truss overhanging type building which comprises a plurality of vertically arranged overhanging units, wherein the overhanging units are transversely and obliquely arranged upwards, the inclination directions of adjacent overhanging units are opposite, the assembled interlayer-arranged concrete truss overhanging type building is in a fold line shape, a shear wall is arranged in a vertical bearing main body, the shear wall is continuously arranged from bottom to top along the whole assembled interlayer-arranged concrete truss overhanging type building and surrounds the whole assembled interlayer-arranged concrete truss overhanging type building to form at least one core barrel, a plurality of rows of precast concrete trusses are arranged at each interval of each overhanging unit in a longitudinal and transverse direction, the core barrels are fixedly connected with the precast concrete trusses intersected with each other in the longitudinal and transverse direction, the precast concrete trusses in the same layer are connected through precast beams, and the precast floor slabs are fixedly connected with the precast concrete trusses and/or the shear wall. The overhanging part of the building forms a terrace space with a sky and a land, thereby achieving the function of villa.
Description
Technical Field
The invention belongs to the field of constructional engineering, and particularly relates to an assembled interlayer-arranged concrete truss overhanging type building.
Background
On the premise that the land resources available for urban construction in China are limited, population is continuously increased and urbanization is accelerated, the expandable land in urban centers is smaller and smaller, particularly the rare degree of superior areas of large cities is particularly obvious, on the contrary, the demands of cities on residences are continuously increased, so that the low-density residential form is not suitable for survival in the cities in China, and the advantages of high-rise integrated residences in terms of higher volume rate are widely developed. In most developed cities in China, low-density villa residences are often built in suburban or suburban areas, and people gradually find contradictions between living space quality facing suburban living patterns and time cost for going to and from living places and lack of perfect living matching in the process of living. Therefore, in order to solve the contradiction between comfort and convenience, the villaized integrated house is gradually becoming a new pet for high-end products in the city. The residences are mostly located in the golden section of the city center, the functional layout of villa residences is simulated on the house design, and the residents can be close to nature without leaving the houses and have an 'air garden'; the plane layout design can be optimized, and the living atmosphere with individuality and privacy is like villas; in addition, the panorama balcony facing the city park or water area is known as an 'air villa' in the city by the real estate developers. To some extent, it is equivalent to aggregating villa residences, extending into the sky, and "a small-mountain-of-a-list" is sometimes incomparable with villas.
As a high-quality house, the villa embodies a natural life style, can represent the living culture and spirit, becomes the best living choice for people with good living needs, and has high price, remote living, uneven matching and the like which are important reasons for being unacceptable to common people. The land and construction cost of the aerial villa are equivalent to those of a common high-rise residence, the aerial villa enjoys the quality of the villa and is in a golden section of a city center, the residential building is a new generation residence which is a cantonese of people, the demand crowd is not limited to the elite crowd with high income, but the common masses and medium-yield grades, and the market demand volume is larger than that of the conventional high-rise residence, so that the residential building not only comprises the demand crowd of the conventional high-rise residence, but also comprises a part of the demand crowd of the conventional villa. Therefore, the central villa is used as a city central high-end residence, and the demand is quite wide.
Disclosure of Invention
The invention aims to provide an assembled interlayer-arranged concrete truss overhanging type building which is novel in structure, high in assembly efficiency and capable of enabling villa houses to be assembled and extend into the air.
The above purpose is realized by the following technical scheme: the utility model provides an assembled interlayer arrangement concrete truss cantilever type building, includes the unit of encorbelmenting of a plurality of vertical settings, the unit of encorbelmenting includes multilayer structure, the unit of encorbelmenting upwards transversely inclines to set up, and the inclination of the adjacent unit of encorbelmenting that sets up is opposite, assembled interlayer arrangement concrete truss encorbelmenting type building is the dogleg, assembled interlayer arrangement concrete truss encorbelmenting type building includes vertical bearing body and encorbelments the outside overhanging position of vertical bearing body, arranged the shear force wall in the vertical bearing body, the shear force wall is along the whole continuous arrangement from bottom to top of assembled interlayer arrangement concrete truss encorbelmenting type building and around into at least one core section of thick bamboo, every interval one deck of unit of encorbelmenting is crisscross all to be equipped with multirow precast concrete truss, core section of thick bamboo is at crisscross precast concrete truss fixed connection that intersects with it vertically and horizontally, link to each other through precast girder between precast floor and precast concrete truss of the multirow truss and/or shear force wall fixed connection.
The overhanging part refers to a part overhanging the outside of the vertical bearing main body, and the vertical bearing main body specifically refers to a structural part for bearing the self weight of the building structure and the vertical additional load and live load and transmitting the self weight, the vertical additional load and the live load to the foundation layer by layer; the longitudinal and transverse directions refer to the overhanging direction and the vertical direction of the overhanging unit.
The adjacent two overhanging units in the building structure form a stable unit structure, the stable unit structure is a triangle stable structure, the building structure can be formed by a plurality of stable unit structures, the whole building is in a fold line shape, each overhanging unit of the concrete truss is gradually overhanging, the layer number of each overhanging unit can be set according to specific practical conditions, if each layer of overhanging is 2.1 meters, 4 layers of overhanging is 8.4m altogether, an overhead terrace space with a space is formed at the overhanging part, the function of villa is achieved, trees and the like can be planted on the terrace, the functional layout of the villa house is simulated on the house type design, the villa house is assembled and extended into the air, the resident can be close to nature without going out, the plane layout design can be optimized, the living atmosphere with personal privacy is like the villa, and the air villa is formed; experiments prove that the overhanging structure can meet the structural safety and use requirements.
Specifically, this building is in the floor direction of upwards receiving, the upper space of every layer is open, the formation is upper to have a day, the direction of upwards increasing overhanging, every layer lower space is unoccluded, called lower ground, every layer of one side house type all has a direction to have a day, can plant, form the garden, and this high-grade sky villa is 2 layers of one family generally, then the tree plant of first layer can surpass the layer height, stretch to the second floor, make 2 layers all enjoy the function of garden villa. The concrete truss can be used as a main bearing member of a main structure of a building, can replace prefabricated columns and wallboards, adopts a truss with lighter weight than that of pure solid concrete, is beneficial to the overall economy and earthquake resistance of the structure, can save a large amount of concrete and reinforcing steel bar materials, is beneficial to the communication between rooms, so as to form an indoor variable large space and achieve the large space function of villas.
The assembled type core tube is used as a main vertical bearing and horizontal anti-seismic member, a layer of assembled truss structure is suspended from every other floor on the core tube, and the suspended assembled truss structure not only bears the load of the floor but also bears the load of the floor of the upper floor, so that the floor of the upper floor forms a large space without vertical support, and a real variable space without any obstruction is formed.
The further technical scheme is that the upper floor slab and the lower floor slab are connected with a concrete truss of the same layer, the upper floor slab is lapped and fixed on an upper chord member of the concrete truss, a connecting rib is arranged on one side of a lower chord member of the concrete truss, an extending rib is arranged at a splicing end of the precast floor slab, the connecting rib and the extending rib are mutually spliced, the concrete truss and the precast floor slab are connected into a whole through a post-pouring belt, and the connecting rib and the extending rib are anchored in the post-pouring belt.
The concrete truss of the invention is used as a main bearing member of a main body structure of a building, and can replace precast columns and wallboards, the structural characteristics of the concrete truss are fully utilized by the connecting node, the connecting rib is thrown out from one side of the concrete truss, the splicing end of the precast floor slab is provided with the extending rib, the connecting rib is lapped with the extending rib, a post-pouring belt is formed by casting the connecting rib in place to connect the concrete truss and the precast floor slab into a whole, and the precast floor slab transmits load to the concrete truss.
The concrete truss is characterized in that a connecting sleeve is embedded in the concrete truss, the opening end of the connecting sleeve is communicated with the outside of the concrete truss, and the connecting ribs are fixedly connected with the connecting sleeve. Therefore, the assembly efficiency is high, the connection is reliable, and the transportation of the concrete truss is not affected.
According to the further technical scheme, the connecting ribs are beard ribs, and the beard ribs are pre-buried at the bottom of the upper truss.
According to the further technical scheme, the concrete truss is provided with corbels, and the prefabricated floor slab is lapped on the corbels and fixedly connected with the corbels.
The further technical scheme is that one end of the prefabricated floor slab, which is lapped on the bracket, is provided with an insertion hole, the bracket is provided with an anchoring piece, one end of the anchoring piece is anchored in the bracket, and the other end of the anchoring piece is inserted into the insertion hole. The insertion hole is filled with grouting material. Therefore, the anchoring piece and the precast beam can be connected into a whole through grouting material, the integrity of the bracket and the precast floor slab is further improved, the connection is more reliable, and the grouting material is preferably mortar.
The core tube is used as a vertical traffic core of the shear wall-concrete truss overhanging type building, and stairs or elevators of the shear wall-concrete truss overhanging type building are arranged in the core tube. The shear wall has stronger stability after forming the core tube, the stress of the core tube is better than that of a single wall which is independently arranged, and the core tube is used as an escape channel of a vertical traffic core protection building, so that the safety of a stairwell is ensured when the building is in an earthquake.
The concrete truss is characterized in that a notch is formed in the top of the concrete truss, two ends of the precast beam are respectively lapped in the notches in the tops of the two rows of adjacent concrete trusses, the precast beam is provided with a connecting piece, the precast beam is provided with a through hole, a notch is formed in the upper portion of the precast beam, the through hole is communicated with the notch, the connecting piece penetrates through the through hole and stretches into the notch, a fastening piece is arranged in the notch, and the fastening piece is connected with the connecting piece.
The further technical scheme is that the connecting piece is a screw rod, the fastening piece is a nut, one end of the screw rod is anchored in the concrete truss, and the other end of the screw rod is connected with the nut in a penetrating mode.
The further technical scheme is that grouting material is poured into the through holes and the notches. According to the invention, the concrete truss and the precast beam are effectively connected in a dry mode through the connecting piece and the fastening piece which are inserted into the through holes of the precast beam, in the assembling process, when the concrete truss is erected, the end part of the precast beam is only required to be lapped in the notch arranged in the precast beam in the hoisting process of the precast beam, meanwhile, the connecting piece is inserted into the through holes and the notch in the precast beam, and then the connecting piece is fastened through the fastening piece.
According to the technical scheme, the shear wall is spliced with the precast concrete truss, embedded parts are arranged on the splicing sides of the shear wall and the precast concrete truss, and the shear wall is fixedly connected with the precast concrete truss through the welded embedded parts.
According to a further technical scheme, the concrete truss comprises a plurality of horizontally spliced precast concrete truss units, and the precast concrete truss units are connected into a whole. Thus, the prefabricated concrete truss unit component is smaller and lighter, is convenient to transport and hoist, and is assembled into the integral concrete truss in the assembly process, so that the integral concrete truss is relatively good in integrity and high in installation efficiency.
According to the technical scheme, the prefabricated concrete truss units are of triangular structures, oblique sides of the two prefabricated concrete truss units are spliced to form truss modules, and a plurality of truss modules are transversely spliced to form a concrete truss. Therefore, the triangle component can form a standard module, can be manufactured and produced in a large quantity without orders, can be directly assembled when required, and has two modes of welding and bolting to form a whole, the concrete truss unit production mould is standardized and modularized, has high efficiency,
according to the technical scheme, the precast concrete truss units which are adjacently arranged are connected through bolts, the precast concrete truss units are provided with through holes, and the bolts are connected with the through holes of the splicing sides of the adjacent precast concrete trusses in a through mode and are fastened through nuts.
According to the technical scheme, the splicing side of the precast concrete truss units is provided with the stretching stirrups, stretching reinforcements of the mutually spliced precast concrete truss units are mutually overlapped, the mutually spliced precast concrete truss units are connected into a whole through the post-pouring area, and the stretching stirrups are anchored in the post-pouring area.
The further technical scheme is that the prefabricated concrete truss unit splicing side is provided with a notch and a vertical through hole, the prefabricated concrete truss unit splicing side spliced with each other forms a containing groove, a connecting block is arranged in the containing groove, the connecting block is also provided with a vertical through hole, the vertical through hole of the connecting block is communicated with the vertical through hole of the prefabricated concrete truss unit, and the through rib is connected with the vertical through hole to connect the connecting block and the prefabricated concrete truss unit into a whole.
The further technical scheme is that transverse structural ribs are embedded in the precast concrete truss units, one ends of the transverse structural ribs are connected with the grouting sleeve, the other ends of the transverse structural ribs extend out of the precast concrete truss units, and the extending ribs of the precast concrete truss units on one side extend into the grouting sleeve of the precast concrete truss units adjacent to the extending ribs and are anchored by grouting.
According to a further technical scheme, the hollow part in the concrete truss is filled with foam concrete or a sound insulation plate. In this way, the inner partition wall is formed by filling the foam concrete or the sound insulation plate truss, the foam concrete can be installed after being prefabricated in the concrete assembly process, the foam concrete can also be filled in a pouring mode, and the triangular sound insulation plate can be connected with the concrete truss unit by adopting self-tapping nails or shooting nails.
The concrete truss comprises an upper chord member and a lower chord member, wherein the upper chord member and the lower chord member of the concrete truss are respectively provided with a first embedded part, a concrete support is arranged in the concrete truss and comprises inclined struts, two ends of each inclined strut are respectively provided with a second embedded part, and the first embedded parts and the second embedded parts are detachably connected. Therefore, the building can be dismantled in places where the building is not required to be arranged, the mode change is flexible, and if the later house type needs to be changed, a plurality of rooms are opened, and the concrete support can be dismantled to directly form a large space on the premise of meeting structural stress.
The technical scheme is that the first embedded part and the second embedded part at least comprise connecting plates, threaded connecting holes are formed in the connecting plates, and the first embedded part and the second embedded part are connected through bolts. Therefore, the assembly and disassembly are simple and convenient, and the connection is reliable.
Drawings
The accompanying drawings, which 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.
FIG. 1 is a schematic view of an assembled type interlayer-arranged concrete truss overhanging type building according to an embodiment of the invention;
FIG. 2 is a schematic view of an arrangement structure of a first layer shear wall core tube and a second layer precast floor plank of an assembled interlayer arrangement concrete truss overhanging type building according to an embodiment of the invention;
FIG. 3 is a schematic view of an assembled interlayer-disposed concrete truss overhanging type second-layer shear wall core barrel and a second-layer concrete truss arrangement structure of a building according to an embodiment of the invention;
FIG. 4 is a schematic view of an arrangement structure of an overhanging type building concrete truss and a precast beam of an assembled interlayer arrangement concrete truss according to an embodiment of the present invention;
fig. 5 is a schematic view showing a structure of an overhanging unit according to an embodiment of the invention after assembly;
FIG. 6 is a schematic view of a assembled stability unit according to an embodiment of the present invention;
fig. 7 to 11 are schematic views of an assembly process of an assembled interlayer-arranged concrete truss overhanging type building according to another embodiment of the invention;
FIG. 12 is a schematic view of a connection node of a concrete truss to a precast floor plank in accordance with one embodiment of the present invention;
FIG. 13 is a schematic view of a connection bar arrangement according to an embodiment of the present invention;
FIG. 14 is a schematic view of a connection node of a concrete truss to a precast floor plank in accordance with another embodiment of the present invention;
FIG. 15 is a cross-sectional view taken along the line A-A in FIG. 14;
FIG. 16 is a schematic view of a connection structure between a concrete truss and a shear wall according to an embodiment of the present invention;
fig. 17 to 23 are schematic structural views of concrete trusses according to an embodiment of the present invention;
FIGS. 24 and 25 are graphs of finite element analysis results, respectively, for one embodiment;
in the figure:
1 concrete truss 2 precast beam 3 precast floor slab 4 concrete truss unit
5 pre-buried connecting piece 6 core section of thick bamboo 7 unit 8 shear force wall of encorbelmenting
9 first embedded part of upper chord 10 and lower chord 12
13 second embedded part 14 vertical web member 15 concrete support 16 connecting rib
17 connecting sleeve 18 transverse structural rib 19 grouting sleeve 20 foaming concrete
21 bolt 22 extends out of rib 23 and stirrup 24 penetrates through rib
25 vertical bearing main body 26 overhanging part 27 foundation 28 bracket
29 built-in fitting 30 connecting block 33 post-pouring belt 34 anchoring piece
35 post-cast region
Detailed Description
The following detailed description of the invention, taken in conjunction with the accompanying drawings, is given by way of illustration and explanation only, and should not be taken as limiting the scope of the invention in any way. Furthermore, the features in the embodiments and in the different embodiments in this document can be combined accordingly by a person skilled in the art from the description of this document.
Referring to fig. 1-6 and fig. 7-11, the embodiment of the invention is as follows, an assembled interlayer-arranged concrete truss overhanging type building comprises a plurality of vertically arranged overhanging units 7, each overhanging unit 7 comprises a multi-layer structure, each overhanging unit 7 is transversely and obliquely arranged upwards, the inclined directions of adjacent overhanging units 7 are opposite, the assembled interlayer-arranged concrete truss overhanging type building is in a fold line shape, the assembled interlayer-arranged concrete truss overhanging type building comprises a vertical bearing main body 25 and overhanging parts 26 overhanging the outside of the vertical bearing main body 25, shear walls 8 are arranged in the vertical bearing main body 25, the shear walls 8 are continuously arranged from bottom to top along the whole of the assembled interlayer-arranged concrete truss overhanging type building and surround at least one core cylinder 6, a plurality of rows of precast concrete trusses 1 are respectively arranged at intervals of each overhanging unit 7, the core cylinders 6 are fixedly connected with the precast concrete trusses 1 which are intersected with each other in a longitudinal and transverse direction, the precast concrete trusses 1 in a plurality of rows, and transverse directions are connected with the precast concrete trusses 1 in a longitudinal and transverse direction, and a transverse direction of the precast concrete trusses 1 in a plurality of rows are fixedly connected with the precast concrete trusses 1.
The overhanging part 26 refers to a part overhanging the vertical bearing body 25, and the vertical bearing body 25 specifically refers to a structural part for bearing the self weight of the building structure and the vertical additional load and live load and transmitting the load to the foundation 27 layer by layer; the longitudinal and transverse directions refer to the overhanging direction and the vertical direction of the overhanging unit 7.
The adjacent two overhanging units 7 in the building structure form a stable unit structure, the stable unit structure is a triangle stable structure, the building structure can be formed by a plurality of stable unit structures, the whole building is in a fold line shape, each overhanging unit 7 of the concrete truss 1 is gradually overhanging, the layer number of each overhanging unit 7 can be set according to specific practical conditions, if each layer of overhanging is 2.1 meters, 4 layers are overhung for 8.4m, the overhanging part 26 forms a terrace space with a top and a bottom, the functions of villas are achieved, trees and the like can be planted on the terrace space, the functional layout of the villa house is simulated on the house design, the villa house is integrated and extends to the air, a resident can be close to nature without leaving a user, the plane layout design can be optimized, the living atmosphere like the villa is provided with personal privacy, and the air villa is formed; experiments prove that the overhanging structure can meet the structural safety and use requirements.
Specifically, this building is in the floor direction of upwards receiving, the upper space of every layer is open, the formation is upper to have a day, the direction of upwards increasing overhanging, every layer lower space is unoccluded, called lower ground, every layer of one side house type all has a direction to have a day, can plant, form the garden, and this high-grade sky villa is 2 layers of one family generally, then the tree plant of first layer can surpass the layer height, stretch to the second floor, make 2 layers all enjoy the function of garden villa. The concrete truss 1 can be used as a main bearing member of a main structure of a building, can replace prefabricated columns and wallboards, adopts a truss with lighter weight than that of pure solid concrete, is beneficial to the overall economy and earthquake resistance of the structure, can save a large amount of concrete and reinforcing steel bar materials, and can be beneficial to the communication between rooms so as to form an indoor variable large space and achieve the large space function of villas.
The assembled type core tube 6 is used as a main vertical bearing and horizontal anti-seismic member, a layer of assembled truss structure is suspended from every other layer of building on the core tube 6, and the suspended assembled truss structure not only bears the load of the building but also bears the load of the floor of the upper layer, so that the floor of the upper layer forms a large space without vertical support, and a real variable space without any obstruction is formed.
On the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 12, the upper floor slab and the lower floor slab are connected with the concrete truss 1 of the same layer, the upper floor slab is lapped and fixed on the upper chord 9 of the concrete truss 1, one side of the lower chord 10 of the concrete truss 1 is provided with a connecting rib 16, the splicing end of the precast floor slab 3 is provided with an extending rib 22, the connecting rib 16 and the extending rib 22 are mutually spliced, the concrete truss 1 and the precast floor slab 3 are connected into a whole through a post-pouring belt 33, and the connecting rib 16 and the extending rib 22 are anchored in the post-pouring belt 33.
The concrete truss 1 of the invention is used as a main bearing member of a main structure of a building, and can replace precast columns and wallboards, the structural characteristics of the concrete truss 1 are fully utilized by the connecting node, the connecting rib 16 is thrown out from one side of the concrete truss 1, the splicing end of the precast floor slab 3 is provided with the extending rib 22, the connecting rib 16 and the extending rib 22 are lapped, a post-pouring belt 33 is formed in situ in a lap joint mode, the concrete truss 1 and the precast floor slab 3 are connected into a whole, and the precast floor slab 3 transmits load to the concrete truss 1.
On the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 13, a connecting sleeve 17 is embedded in the concrete truss 1, an open end of the connecting sleeve 17 is communicated with the outside of the concrete truss 1, and the connecting ribs 16 are fixedly connected with the connecting sleeve 17. Thus, the assembly efficiency is high, the connection is reliable, and the transportation of the concrete truss 1 is not affected.
Based on the above embodiment, in another embodiment of the present invention, the connecting ribs 16 are hooke's ribs, and the hooke's ribs are pre-buried at the bottom of the upper truss.
In another embodiment of the present invention, as shown in fig. 14 and 15, the concrete truss 1 is provided with brackets 28, and the prefabricated floor slab 3 is lapped on the brackets 28 and fixedly connected with the brackets 28.
In another embodiment of the present invention, as shown in fig. 15, an insertion hole is formed at one end of the prefabricated floor slab 3 overlapping the bracket 28, the bracket 28 is provided with an anchor 34, one end of the anchor 34 is anchored in the bracket 28, and the other end is inserted into the insertion hole. The insertion hole is filled with grouting material. In this way, the anchoring element 34 and the precast beam 2 can be connected into a whole through grouting material, and the integrity of the bracket 28 and the precast floor slab 3 is further improved, and the connection is more reliable, wherein the grouting material is preferably mortar.
Based on the above embodiment, in another embodiment of the present invention, the core tube 6 is used as a vertical traffic core of the cantilever type building of the shear wall 8-concrete truss 1, and a stair or an elevator of the cantilever type building of the shear wall 8-concrete truss 1 is disposed in the core tube 6. Because the shear wall 8 forms the stability after the core section of thick bamboo 6 stronger, the atress of core section of thick bamboo 6 is better than the single-sided wall of independent setting, and core section of thick bamboo 6 is as the escape route of vertical transportation nuclear protection building, makes the building when taking place the earthquake, guarantees the safety of stair room.
On the basis of the above embodiment, in another embodiment of the present invention, a notch is provided at the top of the concrete truss 1, two ends of the precast beam 2 are respectively overlapped in the notches at the tops of the two adjacent rows of concrete trusses 1, the concrete truss 1 is provided with a connecting piece, the precast beam 2 is provided with a through hole, a notch is provided at the upper part of the precast beam 2, the through hole is communicated with the notch, the connecting piece passes through the through hole and stretches into the notch, a fastener is provided in the notch, and the fastener is connected with the connecting piece.
On the basis of the above embodiment, in another embodiment of the present invention, the connecting piece is a screw, the fastening piece is a nut, one end of the screw is anchored in the concrete truss 1, and the other end of the screw is connected with the nut in a penetrating way.
In another embodiment of the present invention, on the basis of the above embodiment, grouting material is poured into the through holes and the recesses. According to the invention, the concrete truss 1 and the precast beam 2 are effectively connected in a dry mode through the connecting piece and the fastening piece which are inserted into the through holes of the precast beam 2, in the assembling process, when the concrete truss 1 is well erected, the end part of the precast beam 2 is only required to be lapped in the notch arranged in the concrete truss 1 in the hoisting process of the precast beam 2, meanwhile, the connecting piece is inserted into the through holes and the notch in the precast beam 2, and then the connecting piece is fastened through the fastening piece, so that the structure is beneficial to the force conduction between the concrete truss 1 and the precast beam 2, meanwhile, the site installation efficiency is greatly improved, and the construction speed is improved.
On the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 16, the shear wall 8 is spliced with the precast concrete truss 1, the splicing sides of the shear wall 8 and the precast concrete truss 1 are respectively provided with an embedded part 29, and the shear wall 8 and the precast concrete truss 1 are fixedly connected by welding the embedded parts 29.
On the basis of the foregoing embodiment, in another embodiment of the present invention, as shown in fig. 17 to 23, the concrete truss 1 includes a plurality of horizontally spliced precast concrete truss units 4, and the precast concrete truss units 4 are integrally connected. Thus, the prefabricated concrete truss unit 4 members are smaller and lighter, the prefabricated concrete truss unit is convenient to transport and hoist, the prefabricated concrete truss unit is assembled into the integral concrete truss 1 in the assembly process, the integrity is relatively good, and the installation efficiency is high.
On the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 17, the precast concrete truss units 4 are in a triangle structure, the hypotenuses of the two precast concrete truss units 4 are spliced to form truss modules, and a plurality of truss modules are transversely spliced to form the concrete truss 1. Therefore, the triangle component can form a standard module, can be manufactured and produced in a large quantity without orders, can be directly assembled when the demands exist, and is formed into a whole by two modes of welding and bolt 21 connection, the concrete truss unit 4 has standardized and modularized production mould and high efficiency,
on the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 17, the precast concrete truss units 4 are provided with the pre-buried connectors 5, the pre-buried connectors 5 are exposed to the splicing side of the precast concrete truss units 4, and the pre-buried connectors 5 spliced with each other are welded into a whole.
On the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 18, adjacently disposed precast concrete truss units 4 are connected by bolts 21, the precast concrete truss units 4 are provided with through holes, and the bolts 21 are threaded through the through holes of the splicing sides of the adjacent precast concrete trusses 1 and fastened by nuts.
On the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 19, the splicing side of the precast concrete truss units 4 is provided with an extending stirrup 23, the extending steel bars of the precast concrete truss units 4 spliced with each other are mutually overlapped, the precast concrete truss units 4 spliced with each other are connected into a whole through a post-cast area 35, and the extending stirrup 23 is anchored in the post-cast area 35.
On the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 20, a notch and a vertical through hole are formed on the splicing side of the precast concrete truss unit 4, a receiving groove is formed on the splicing side of the precast concrete truss unit 4 that are spliced with each other, a connecting block 30 is disposed in the receiving groove, the connecting block 30 is also provided with a vertical through hole, the vertical through hole of the connecting block 30 is communicated with the vertical through hole of the precast concrete truss unit 4, and the through rib 24 is connected with the vertical through hole in a penetrating manner to connect the connecting block 30 and the precast concrete truss unit 4 into a whole.
On the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 21, a transverse structural rib 18 is pre-embedded in the precast concrete truss unit 4, one end of the transverse structural rib 18 is connected with a grouting sleeve 19, the other end extends out of the precast concrete truss unit 4, and an extending rib 22 of one side of the precast concrete truss unit 4 extends into the grouting sleeve 19 of the precast concrete truss unit 4 adjacent to the extending rib and is anchored by grouting.
On the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 22, the hollow portion in the concrete truss 1 is filled with foamed concrete 20 or a sound insulation board. In this way, the inner partition wall is formed by filling the foam concrete 20 or the sound insulation plate truss, the foam concrete 20 can be installed after being prefabricated in the concrete assembly process, and can also be filled in a pouring mode, and the triangular sound insulation plate can be connected with the concrete truss unit 4 by self-tapping nails or shooting nails.
On the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 23, the upper chord member 9 and the lower chord member 10 of the concrete truss 1 are both provided with a first embedded part 12, a concrete support 15 is disposed in the concrete truss 1, the concrete support 15 includes an inclined strut, two ends of the inclined strut are both provided with second embedded parts 13, and the first embedded parts 12 and the second embedded parts 13 are detachably connected. Therefore, the building can be dismantled in places where the building is not required to be arranged, the mode change is flexible, and if the later house type needs to be changed, a plurality of rooms are opened, and the concrete support 15 can be dismantled on the premise of meeting the structural stress to directly form a large space.
The concrete truss comprises vertical web members 14, which vertical web members 14 connect the upper chord 9 and the lower chord 10.
On the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 23, each of the first embedded part 12 and the second embedded part 13 at least includes a connecting plate, a threaded connecting hole is provided on the connecting plate, and the first embedded part 12 and the second embedded part 13 are connected by a bolt 21. Therefore, the assembly and disassembly are simple and convenient, and the connection is reliable.
The results of calculation and verification under the embodiment are as follows, and as shown in fig. 24, the building height is 16 floors (48 m height in total), the accumulated horizontal displacement is 18.8mm under the earthquake action of 6 degrees area (small earthquake force), each floor of horizontal displacement is about 1.175mm (18.8/16=1.175), the inter-floor displacement angle is 1/2553 (1.175/3000, wherein 3000mm is the floor height), and the limiting value of the most strict 1/1200 displacement angle in the assembled high-rise structure is smaller, so that the earthquake-proof requirement is met.
As shown in fig. 25, the vertical displacement of the cantilever part under the vertical load and the earthquake load is 49.5mm at the maximum, the total cantilever distance is 24m, the deflection limit value of the cantilever member is 2 x 24000/400=120 mm, and the vertical maximum displacement is smaller than the deflection limit value, so that the cantilever structure can meet the structural safety and the use requirement.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (10)
1. The utility model provides an assembled interlayer arranges concrete truss cantilever type building, its characterized in that includes the unit of encorbelmenting of a plurality of vertical settings, the unit of encorbelmenting includes multilayer structure, the unit of encorbelmenting upwards transversely inclines to set up, and the inclination opposite of the unit of encorbelmenting of adjacent setting, assembled interlayer arranges concrete truss cantilever type building is the dogleg form, assembled interlayer arranges concrete truss cantilever type building includes vertical bearing main part and encorbelments be in the outside position of encorbelmenting of vertical bearing main part, arranged the shear force wall in the vertical bearing main part, the shear force wall is arranged in succession from bottom to top along assembled interlayer arrangement concrete truss cantilever type building is whole and around into at least one core section of thick bamboo, every interval one deck of unit of encorbelmenting is vertically and horizontally all is equipped with multirow precast concrete truss, core section of thick bamboo is continuous with through precast beam between the precast beam that crisscross and the same deck multirow precast concrete truss, assembled interlayer arranges concrete truss cantilever type building's precast floor with precast beam and/or precast beam fixed connection, be equipped with bracket and bracket overlap joint are in the precast truss.
2. The assembled interlayer-arranged concrete truss overhanging type building according to claim 1, wherein the upper floor slab and the lower floor slab are connected with the same layer of concrete truss, the upper floor slab is lapped and fixed on an upper chord member of the concrete truss, a connecting rib is arranged on one side of a lower chord member of the concrete truss, an extending rib is arranged at a splicing end of the precast floor slab, the connecting rib is mutually spliced with the extending rib, the concrete truss and the precast floor slab are connected into a whole through a post-pouring belt, and the connecting rib and the extending rib are anchored in the post-pouring belt.
3. The assembled interlayer-arranged concrete truss overhanging type building according to claim 2, wherein a connecting sleeve is embedded in the concrete truss, the opening end of the connecting sleeve is communicated with the outside of the concrete truss, and the connecting rib is fixedly connected with the connecting sleeve.
4. The assembled interlayer arranged concrete truss overhanging type building according to any one of claims 1 to 3, characterized in that the core tube is used as a vertical traffic core of the shear wall-concrete truss overhanging type building, and stairs or elevators of the shear wall-concrete truss overhanging type building are arranged in the core tube.
5. The assembled interlayer placement concrete truss overhanging building of claim 4, wherein a notch is formed in the top of the concrete truss, two ends of the precast beam are respectively lapped in the notches in the tops of the two rows of adjacent concrete trusses, a connecting piece is arranged at the top of the concrete truss, a through hole is formed in the precast beam, a notch is formed in the upper portion of the precast beam, the through hole is communicated with the notch, the connecting piece penetrates through the through hole and stretches into the notch, a fastening piece is arranged in the notch, and the fastening piece is connected with the connecting piece.
6. The assembled interlayer-arranged concrete truss overhanging type building according to claim 4, wherein the shear wall is spliced with the precast concrete truss, embedded parts are arranged on the splicing sides of the shear wall and the precast concrete truss, and the shear wall is fixedly connected with the precast concrete truss through the welded embedded parts.
7. The fabricated, barrier-arranged concrete truss overhanging building of claim 4, wherein the concrete truss comprises a plurality of horizontally spliced precast concrete truss units, the precast concrete truss units being integrally connected.
8. The assembled interlayer placement concrete truss overhanging building of claim 7, wherein the prefabricated concrete truss unit splicing sides are provided with a notch and a vertical through hole, the mutually spliced prefabricated concrete truss unit splicing sides form a containing groove, a connecting block is arranged in the containing groove, the connecting block is also provided with a vertical through hole, the vertical through hole of the connecting block is communicated with the vertical through hole of the prefabricated concrete truss unit, and the vertical through hole is connected with the connecting block and the prefabricated concrete truss unit into a whole by the through rib.
9. The assembled interlayer-arranged concrete truss overhanging building of claim 7, wherein the vacant sites in the concrete truss are filled with foamed concrete or sound insulation boards.
10. The assembled interlayer placement concrete truss overhanging building of claim 9, wherein the upper chord member and the lower chord member of the concrete truss are provided with first embedded parts, a concrete support is arranged in the concrete truss, the concrete support comprises inclined struts, two ends of each inclined strut are provided with second embedded parts, and the first embedded parts and the second embedded parts are detachably connected.
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