CN217500558U - Precast concrete module building - Google Patents

Abstract

The invention discloses a precast concrete module building, which is characterized in that precast concrete functional modules are assembled into a whole, the functional modules are formed by integrally pouring concrete, the outer wall of each module adopts a heat-insulation structure integrated outer wall, the inner wall adopts a single-layer reinforced concrete wall, a bottom plate adopts a ribbed floor, and the modules are connected through upper and lower layer module connecting nodes, same layer module connecting nodes and top plate connecting nodes to form an integral structure, so that a space frame support high-efficiency lateral force resisting system is formed. The invention has strong structural integrity and clear stress mode of the lateral force resisting system, can be used for buildings with higher building height in high-intensity areas, can solve the problems of poor structural integrity and low building height of the existing precast concrete module buildings, can realize the integration of a heat-insulating structure, and simultaneously adopts an efficient stress structural member to effectively control the self weight of the module and reduce the requirements of transportation and hoisting.

Description

Precast concrete module building

Technical Field

The invention belongs to the technical field of buildings, relates to a modular assembly type building, and particularly relates to a precast concrete modular building.

Background

The modular assembly type building is distributed according to each function space of the building, the whole building is split into independent prefabricated function modules according to the function space, the prefabricated function modules are prefabricated and produced in a factory, and the independent prefabricated function modules are assembled into the whole building on site. Compared with the traditional assembly type building based on single prefabricated component layer, the modular assembly type building has high integration degree, few field connection nodes and high field building speed, can greatly reduce the building period, adopts large machinery to carry out modular building on the field, reduces the field labor consumption, can realize real assembly type building and industrial building, and is the ultimate form of assembly type building development.

The prefabricated functional modules adopted by the existing modular assembly type building can be divided into a steel structure module building and a precast concrete module building according to materials. The steel structure module building has the advantages of light dead weight, simple connection, large steel consumption, high cost, building function defects of heat preservation, heat insulation, sound insulation and the like, and difficult later-stage fire prevention and corrosion prevention maintenance, is mainly used for low-rise office buildings or emergency buildings at present, and has few applications in residential buildings. The prefabricated concrete module building steel has small quantity, low cost, good heat preservation, heat insulation and sound insulation performance, and outstanding fireproof and anti-corrosion problems in the using process, is a solution suitable for a high-quality modular building, but has the defects of large dead weight and high requirement on-site crane equipment, and is the key point needing optimized control. In addition, local dry-type connection such as bolts or welding is mostly adopted among the prefabricated functional modules of the existing prefabricated concrete module building to realize the connection of the prefabricated functional modules, the connection integrity is poor, the stress mode of a lateral force resisting system is not clear, the prefabricated concrete module building is only suitable for buildings below three floors and is difficult to apply to buildings below 6-8 floors, and the application range of the prefabricated concrete module building is greatly limited.

Disclosure of Invention

In order to overcome the defects of the modular assembly type building, the invention aims to provide a precast concrete modular building which is characterized in that precast concrete functional modules are assembled into a whole, the functional modules are integrally formed by pouring concrete, the outer walls of the modules adopt heat-insulation structure integrated outer walls, the inner walls adopt single-layer reinforced concrete walls, the bottom plates adopt ribbed floors, the modules are connected through upper and lower layer module connecting nodes, same layer module connecting nodes and top plate connecting nodes to form an integrated structure, the connecting nodes are reliable in force transmission, a space frame support high-efficiency lateral force resisting system can be formed, the structure integrity is good, the precast concrete modular building can be used for high buildings, and meanwhile, the self weight of the modules is controlled through the heat-insulation structure integrated outer walls and the ribbed floors, so that the requirements on-site crane equipment are reduced.

In order to achieve the purpose, the invention adopts the technical scheme that:

a prefabricated concrete module building is characterized in that an integral building is split into independent prefabricated concrete functional modules according to functional spaces, and the prefabricated concrete functional modules are assembled into the integral building on a construction site. The precast concrete functional module is formed by integrally pouring concrete in a factory, a building functional space is formed by enclosing an outer wall, an inner wall, a bottom plate and a top plate, and a window opening or a door opening is formed according to building functional requirements.

The precast concrete functional module outer wall adopts insulation construction integration outer wall, specifically, lays the heated board according to heat preservation, thermal-insulated requirement in the concrete outer wall that thickness is 160 ~ 250mm, respectively lays one deck level and vertical two-way reinforcing bar net piece along outer wall thickness direction in the solid concrete inside the heated board both sides.

The precast concrete functional module inner wall adopts the solid concrete wall that thickness is 80 ~ 120mm, and inside configuration individual layer level and vertical two-way reinforcing bar net piece.

Precast concrete function module bottom plate, roof all adopt reinforced concrete slab, and the bottom plate bottom sets up the ribbed beam and forms the ribbed floor, and the vertical load in the module is born to the ribbed floor high efficiency, satisfies atress and module weight control requirement simultaneously.

Different precast concrete functional modules of the whole building are connected into an integral structure through module edge nodes on the same floor, module middle nodes on the same floor, module connecting nodes on the upper floor and the lower floor and roof connecting nodes, so that a space lateral force resisting structure system is formed.

Specifically, combine the atress characteristics of overall structure under the earthquake load, set up tip main stress area at positions such as precast concrete function module bight and window opening or door opening both ends, the tip main stress area sets up perpendicular hole, and perpendicular hole link up the module along the direction of height, sets up vertical stress reinforcing bar in the perpendicular hole and provides anti side ability. Set up vertical structure reinforcing bar and stirrup outside the vertical hole of tip main stress zone and form the stirrup restraint effect to tip main stress zone concrete, guarantee the restraint performance of tip main stress zone compression zone concrete under the earthquake action, improve overall structure's deformability.

The short tip main stress area of length of different precast concrete functional modules is through same layer module side node, same layer module intermediate node connection for the great main stress area of overall length, and the tip main stress area is equivalent to along whole building evenly distributed's frame post, and the inner wall that the thickness is thinner is equivalent to the bracing between the frame post, and overall structure forms the high-efficient anti lateral force system of space frame brace, improves overall structure's anti lateral stiffness greatly, guarantees that precast concrete functional module is applicable to highly higher building.

Particularly, the cross section of a vertical hole in the end part main stress area is circular or oval, the size of the vertical hole along the thickness direction of the wall body is not smaller than 90mm, 1-2 vertical stress reinforcing steel bars are distributed in each vertical hole, and the positions and the number of the vertical holes are determined according to the calculated reinforcement area of the vertical stress reinforcing steel bars.

Specifically, the length of the vertical stressed steel bar of the lower module extending out of the top plate of the lower module is 100-400 mm, the steel bar joint is adopted at the top of the vertical stressed steel bar of the lower module to continuously connect the vertical stressed steel bar of the upper module, then the upper module is hoisted, and the steel bar joint is preferably a straight thread joint. Optionally, the vertical stressed steel bars of different lower-layer modules have a difference of 200mm in extension length, so that the situation that all vertical stressed steel bars are aligned with the vertical holes at the same time in the process of hoisting the upper-layer modules is avoided, the alignment difficulty is staged, and the hoisting efficiency of the precast concrete functional module is improved.

The same-floor module edge node is used for connecting two peripheral precast concrete functional modules of the same floor building, a through-height vertical groove is formed in the wall corner of the precast concrete functional module at the same-floor module edge node position along the height direction, a plurality of key grooves are formed in the side face of the vertical groove along the height direction, the vertical groove is surrounded to form a closed vertical hole after the two adjacent precast concrete functional modules are installed, and the two adjacent precast concrete functional modules are connected after the concrete is poured in the closed vertical hole.

Particularly, the cross section of the vertical groove is in a trapezoid shape with a large outer part and a small inner part, so that demolding in the production stage is facilitated, and the depth of the vertical groove to the interior of the precast concrete functional module is not less than 50 mm.

Optionally, a plurality of threaded sleeves are embedded in the side face of the vertical groove along the height direction, connecting steel bars of corresponding specifications are screwed into the threaded sleeves before installation on a construction site, the connecting steel bars of the precast concrete functional modules on the two sides are close in height and are anchored into post-cast concrete in a crossed mode, and integrity of edge nodes of modules on the same layer is enhanced. Particularly, the tail ends of the connecting steel bars are provided with 90-degree hooks, and planes where the hooks are located in a vertical plane, so that the connecting steel bars of the precast concrete functional modules on two sides are prevented from colliding with each other in the installation process.

Optionally, a plurality of wire rope sleeves are pre-buried along the direction of height on the side of the vertical groove, after two adjacent precast concrete functional modules are installed, the wire rope sleeves extending out of the side of the vertical groove of each adjacent precast concrete functional module are crossed and overlapped, a pin bolt reinforcing steel bar is inserted into the crossed area along the direction of height, the reliability of force transmission of the wire rope sleeves extending out of the side of each adjacent precast concrete functional module is enhanced through the pin bolt action of the pin bolt reinforcing steel bar, and the integrity of the edge nodes of the same layer module is enhanced. In particular, the pin tumbler steel bars of the upper and lower layers are not connected.

Optionally, or no vertical groove is formed in the wall corner of the precast concrete functional module at the same-layer module edge node position, a plurality of pre-buried steel plates are pre-buried in the corner, close to the same-layer module edge node, of the outer wall of the precast concrete functional module along the height direction, after two adjacent precast concrete functional modules are installed, the two adjacent precast concrete functional modules are welded and connected with the pre-buried steel plates of the two adjacent precast concrete functional modules through connecting steel plates, connection of the two adjacent precast concrete functional modules is achieved, and post-pouring concrete is not needed at the same-layer module edge node position.

The same-floor module middle node is used for connecting four adjacent precast concrete functional modules on the same floor in the building, a through high chamfer is arranged at the corner of the wall body, close to the same-floor module middle node, of each precast concrete functional module in the height direction, and the size of each chamfer in two orthogonal directions is not less than 100 mm. Set up a plurality of keyways along the direction of height at the corner cut side, the corner cut encloses to close and forms the vertical hole of closed rectangle after four adjacent precast concrete functional module installations are accomplished, and four bights in the vertical hole of closed rectangle set up vertical atress reinforcing bar, pour the interior post-cast concrete of closed rectangle vertical hole and realize the connection of four adjacent precast concrete functional module.

Optionally, a plurality of threaded sleeves are pre-embedded in the side face of the chamfer along the height direction, connecting steel bars are screwed into the threaded sleeves of the three prefabricated concrete functional modules which are installed at first, and the length of each connecting steel bar is close to the side length of each rectangular vertical hole; and the fourth precast concrete functional module installed at last is screwed into the connecting steel bars in advance before installation, the length of the connecting steel bars is slightly shorter and is close to half of the side length of the rectangular vertical hole, and the collision of the connecting steel bars on the side surfaces of the four precast concrete functional modules in the installation process is avoided. In particular, the ends of the connecting bars are provided with 90 ° hooks, the plane of which lies in the horizontal plane.

Optionally, a plurality of wire rope sleeves are pre-embedded in the height direction of the side face of the corner cut, three prefabricated concrete functional modules which are installed at first and are located at the same height are bound into a whole, finally, a fourth prefabricated concrete functional module is installed, and pin bolt reinforcing steel bars are inserted into the cross areas of the four wire rope sleeves along the height direction. In particular, the pin tumbler steel bars of the upper and lower layers are not connected.

And a plurality of top plate connecting nodes are arranged between the top plates of the adjacent precast concrete functional modules on the same layer to realize the connection of the top plates of the adjacent precast concrete functional modules on the same layer, the distance between the adjacent top plate connecting nodes is 1.5-2 m, and the top plate connecting nodes are not arranged at the corners of the top plates.

Specifically, pre-buried steel plates are arranged at the corresponding positions of the top plate connecting nodes on the top plate, and after two adjacent precast concrete functional modules are installed, the connecting steel plates are respectively connected with the pre-buried steel plates on the top plates of the two adjacent precast concrete functional modules in a welding mode, so that the connecting construction of the top plate connecting nodes is completed.

Particularly, the upper surface of the embedded steel plate of the top plate is 15-20 mm lower than the upper surface of the top plate, the upper surface of the connecting steel plate of the top plate connecting node is lower than the upper surface of the top plate, and the upper surface of the top plate of the precast concrete functional module on the layer is not protruded after the construction of the top plate connecting node is finished.

Particularly, an installation seam with the width of about 10mm is arranged between adjacent precast concrete functional modules so as to adjust the installation precision, and the installation seam at the position of the connecting node is sealed by a sealing rod. And after all the precast concrete functional modules on the same layer are installed and all the connecting node connecting pieces are arranged, the post-cast concrete in the vertical holes, the side nodes of the modules on the same layer and the middle nodes of the modules on the same layer is poured at the same time, so that the connection among different precast concrete functional modules is realized.

Compared with the prior art, the invention has the beneficial effects that:

(1) the light heat-insulating block filled in the outer wall of the precast concrete functional module is reduced in weight, the bottom plate adopts a high-efficiency stressed ribbed floor, and the inner wall adopts a single-layer reinforced concrete wall with thinner thickness, so that the self weight of the module can be well controlled, the requirement on field crane equipment is reduced, and the transportation and installation cost is reduced.

(2) The precast concrete functional module outer wall adopts the internal filling heat-insulation plate to realize the heat-insulation structure integrated outer wall, has low cost, can realize the heat-insulation structure integrated construction of the outer wall, and has good durability of the peripheral protective wall.

(3) The precast concrete functional module is provided with the vertical hole along the height direction, the vertical stressed steel bar is penetrated and the concrete in the vertical hole is poured after, the method is simple to realize, the connection is simple, the precision requirement is low, and the complex construction processes such as the traditional prestressed steel strand compression joint and the like can be avoided.

(4) The integral structure of the invention forms a space frame support high-efficiency lateral force resisting system, greatly improves the lateral rigidity resistance of the integral structure, ensures that the precast concrete functional module is used for a building with higher height, and breaks through the limitation of low applicable height of the existing precast concrete module building.

Drawings

FIG. 1 is a three-dimensional schematic view of a precast concrete functional module according to the present invention.

Fig. 2 is a schematic view of the precast concrete functional module of the present invention assembled into an integral building, wherein a top plate of the precast concrete functional module is not shown.

Fig. 3 is a schematic composition diagram of the precast concrete functional module in fig. 1.

Fig. 4 is a schematic structural view of a precast concrete functional module base plate according to the present invention.

Fig. 5 is a schematic view of a wall body of the precast concrete functional module of the present invention, i.e., a schematic view of a section a-a in fig. 3.

FIG. 6 is a schematic structural diagram of a main stress area at the end part of the wall body of the precast concrete functional module.

Fig. 7 is a schematic view of the connection of vertically stressed steel bars of upper and lower modules according to the present invention.

Fig. 8 is a schematic view of a connection structure of edge nodes of modules in the same layer according to the present invention.

Fig. 9 is a modification of the edge node of the same module shown in fig. 8.

Fig. 10 is a second modification of the edge node of the same-layer module shown in fig. 8.

Fig. 11 is a third modification of the edge node of the same-layer module shown in fig. 8.

Fig. 12 is a partial elevation view of an edge node of the same-tier module shown in fig. 11.

Fig. 13 is a schematic view of a connection structure of intermediate nodes of modules in the same layer according to the present invention.

Fig. 14 is a modification of the intermediate node of the same-tier module shown in fig. 13.

Fig. 15 is a schematic view showing the arrangement of the top plate connecting nodes of the adjacent precast concrete functional modules according to the present invention.

Fig. 16 is a schematic view showing the construction of the top plate connection node shown in fig. 15.

FIG. 17 is a schematic cross-sectional view of B-B in FIG. 16.

In the figure: 1-prefabricating a concrete functional module; 11-an end module; 12-an intermediate module; 13-module one; 14-module two; 15-module three; 16-module four; 17-a lower layer module; 18-upper module; 21-window opening; 22-door opening; 23-an outer wall; 24-an inner wall; 25-a base plate; 26-a top plate; 27-an insulation board; 28-a rib beam; 31-module edge nodes in the same layer; 32-module intermediate nodes in the same layer; 33-upper and lower module connection nodes; 34-a sealing rod; 35-top plate connection node; 41-vertical hole; 42-vertical grooves; 43-cutting corners; 44-a keyway; 5-end main force bearing area; 51-vertical stressed steel bars; 511-vertical stressed steel bars of the lower layer module; 512-upper module vertical stress steel bar; 513-steel bar joints; 52-vertical constructional reinforcement; 53-stirrup; 61-connecting reinforcing steel bars; 62-a threaded sleeve; 63-steel wire rope sleeves; 64-pinned bars; 65-pre-burying a steel plate; 66-connecting steel plates; 67-weld.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings and examples, and it is apparent that the described examples are some, but not all, of the embodiments of the present invention.

As shown in fig. 1 and 2, a precast concrete module building is constructed by splitting an entire building into independent precast concrete functional modules 1 according to functional spaces, and assembling the precast concrete functional modules 1 into the entire building at a construction site. The precast concrete functional modules 1 can be divided into end modules 11 and middle modules 12 according to the positions in the whole building, and the precast concrete functional modules 1 are provided with window openings 21 or door openings 22 according to the building design requirements, so that the building functions of different precast concrete functional modules 1 are communicated.

Referring to fig. 3, the precast concrete functional module 1 is formed by integrally casting concrete in a factory, and a building functional space is enclosed by an outer wall 23, an inner wall 24, a bottom plate 25 and a top plate 26. As shown in fig. 3 and 4, a plurality of rib beams 28 are arranged at the bottom of the bottom plate 25 to form a ribbed floor, and the ribbed floor efficiently bears vertical load in the module and simultaneously meets the requirements of stress and module weight control.

As shown in fig. 5, the external wall 23 of the precast concrete functional module 1 is an integrated external wall with a heat insulation structure, specifically, a heat insulation board 27 is arranged in the concrete external wall 23 with a thickness of 160-250 mm according to the requirements of heat insulation and heat insulation, and a layer of horizontal and vertical bidirectional reinforcing mesh is respectively arranged inside solid concrete at two sides of the heat insulation board 27 along the thickness direction of the external wall 23. The precast concrete functional module inner wall 24 is a solid concrete wall with the thickness of 80-120 mm, and a single-layer horizontal and vertical bidirectional reinforcing mesh is arranged inside the solid concrete wall.

As shown in fig. 2 and 5, according to the stress characteristics of the whole building structure under earthquake load, end main stress areas 5 are arranged at the corners of the precast concrete functional modules 1, at the two ends of the window opening 21 or the door opening 22, and the like, vertical holes 41 are arranged in the end main stress areas 5, the vertical holes 41 penetrate through the precast concrete functional modules 1 along the height direction, and vertical stress steel bars 51 are arranged in the vertical holes 41 to provide lateral resistance. The section of each vertical hole 41 in the end part main stress area 5 is circular or oval, the size of each vertical hole 41 in the thickness direction of the wall is not smaller than 90mm, 1-2 vertical stress reinforcing steel bars are distributed in each vertical hole 41, and the positions and the number of the vertical holes 41 are determined according to the calculated reinforcement area of the vertical stress reinforcing steel bars 51.

As shown in fig. 6, vertical structural reinforcements 52 and stirrups 53 are arranged outside the vertical holes 41 of the end main stress area 5 to form a stirrup restraining effect on concrete inside the end main stress area 5, so that the restraining performance of the concrete in the compression area of the end main stress area 5 under the action of an earthquake is ensured, and the deformability of the whole structure is improved.

Fig. 7 provides an embodiment of the connection node 33 of the upper and lower modules according to the present invention, wherein the length of the vertical stressed steel bar 511 of the lower module, which extends out of the top plate 26 of the lower module 17, is 100-400 mm, the top of the vertical stressed steel bar 511 of the lower module is connected to the vertical stressed steel bar 512 of the upper module by using a steel bar joint 513, and then the upper module 18 is hoisted, and the steel bar joint is preferably a straight screw joint. Further, as shown in fig. 2, the extension lengths of the vertical stressed steel bars 511 of different lower-layer modules preferably differ by 200mm, so that the situation that all the vertical stressed steel bars 51 are aligned with the vertical holes 41 at the same time in the process of hoisting the upper-layer module 18 is avoided, the alignment difficulty is reduced by stages, and the hoisting efficiency of the precast concrete functional module 1 is improved.

As shown in fig. 2, two precast concrete functional modules 1 at the periphery of a building on the same floor are connected through a module edge node 31 on the same floor, and four precast concrete functional modules adjacent to the same floor are connected inside the building through a module middle node 32 on the same floor.

Fig. 8 provides a preferred embodiment of the same-layer module edge node 31 of the present invention, through vertical grooves 42 are formed in the corners of the first module 13 and the second module 14 along the height direction, a plurality of key slots 44 are formed in the side surfaces of the vertical grooves 42 along the height direction, after the first module 13 and the second module 14 are installed, the vertical grooves 42 on the two sides enclose to form a closed vertical hole, after the closed vertical hole is poured with post-cast concrete, the first module 13 and the second module 14 are connected, and the post-cast concrete forms shear keys at the key slots 44 to improve the shear force transmission performance of the same-layer module edge node 31. Preferably, the cross section of the vertical groove 42 is in a trapezoid shape with a large outside and a small inside, so that demolding in the production stage is facilitated, and the depth of the vertical groove 42, which is concave to the inside of the precast concrete functional module, is not less than 50 mm.

Fig. 9 shows a first improvement of the first improvement of fig. 8, and the specific improvement lies in that a plurality of threaded sleeves 62 are embedded in the side surface of the vertical groove 42 along the height direction, connecting steel bars 61 with corresponding specifications are screwed into the threaded sleeves 62 before installation on a construction site, the connecting steel bars 61 of the first module 13 and the second module 14 are close in height and are anchored in a cross mode into post-cast concrete, and the integrity of the module edge node 31 on the same layer is enhanced. Particularly, the tail ends of the connecting reinforcing steel bars 61 are provided with 90-degree hooks to enhance the anchoring performance in the post-cast concrete, and the planes of the hooks are located in the vertical plane, so that the hooks of the connecting reinforcing steel bars 61 of the first module 13 and the second module 14 are prevented from colliding with each other in the installation process.

Fig. 10 is a second modification shown in fig. 8, and the second modification is that a plurality of wire rope loops 63 are pre-embedded in the side surface of the vertical groove 42 along the height direction, after the first module 13 and the second module 14 are installed, the wire rope loops 63 extending out of the side surface of the vertical groove 42 of the first module 13 and the second module 14 are crossed and overlapped, a pin bolt reinforcing bar 64 is inserted into the crossed area along the height direction, and the force transmission reliability of the wire rope loops 63 extending out of the side surface of the first module 13 and the second module 14 is enhanced through the pin bolt effect of the pin bolt reinforcing bar 64. In particular, the upper and lower layers of pinning reinforcing bars 64 are not connected to each other.

Fig. 11 to 12 are third modified versions shown in fig. 8, and the third modified versions are specifically modified in that the first module 13 and the second module 14 do not have vertical grooves 42 at the corners, a plurality of embedded steel plates 65 are embedded at the corners of the outer walls of the first module 13 and the second module 14 along the height direction, after the first module 13 and the second module 14 are installed, the first module 13 and the second module 14 are welded to the embedded steel plates 65 of the first module 13 and the second module 14 respectively through connecting steel plates 66, and welding seams 67 are arranged along the peripheries of the connecting steel plates 66 to connect the first module 13 and the second module 14. Compared with fig. 8-10, the module edge node 31 position on the same layer shown in fig. 11-12 does not need post-pouring concrete.

Fig. 13 shows a preferred embodiment of the intermediate node 32 of the same-layer module of the present invention, and as shown in fig. 1 and 13, through high chamfers 43 are arranged at the corners of the wall of the first module 13, the second module 14, the third module 15, and the fourth module 16 along the height direction, and the sizes of the chamfers 43 in two orthogonal directions are not less than 100 mm. A plurality of key grooves 44 are formed in the side face of the chamfer 43 along the height direction, the chamfer 43 is enclosed to form a closed rectangular vertical hole after the installation of the first adjacent module 13, the second adjacent module 14, the third adjacent module 15 and the fourth adjacent module 16, vertical stress reinforcing steel bars 51 are arranged at four corners of the closed rectangular vertical hole, and the connection of the four adjacent modules is realized after the post-cast concrete in the closed rectangular vertical hole is poured. Specifically, the vertical stressed steel bars 51 in the closed rectangular vertical holes of the upper and lower layers are preferably connected by straight threaded joints.

And embedding a plurality of threaded sleeves 62 on the side surfaces of the cutting corners 43 of the first module 13, the second module 14, the third module 15 and the fourth module 16 along the height direction. The field construction process comprises the following steps: firstly, installing a first module 13, a second module 14 and a third module 15, screwing a connecting steel bar 61 into a corresponding threaded sleeve 62, wherein the length of the connecting steel bar 61 is close to the side length of a rectangular vertical hole; laying vertical stressed steel bars 51 and completing steel bar connection, and hooking the vertical stressed steel bars 51 by 90-degree hooks at the tail ends of the connecting steel bars 61 according to a graph 13; a threaded sleeve 62 of the module four 16 is screwed into a connecting steel bar 61, and the length of the connecting steel bar 61 is slightly shorter and is close to half of the side length of the rectangular vertical hole; hoisting the module IV 16 to a design position; and pouring concrete in the closed rectangular vertical hole, so as to realize the connection of the first module 13, the second module 14, the third module 15 and the fourth module 16.

Fig. 14 shows a modified version of fig. 13, which is specifically modified in that a plurality of wire rope loops 44 are embedded in the side surface of the chamfer 43 along the height direction, and the wire rope loops 44 corresponding to the first module 13, the second module 14, the third module 15 and the fourth module 16 are close to each other in position along the height direction and are staggered with each other. The improved field construction process comprises the following steps: firstly, installing a first module 13, a second module 14 and a third module 15, laying vertical stressed steel bars 51 and completing steel bar connection, and binding three steel wire rope sleeves 63 of the first module 13, the second module 14 and the third module 15 at the same height into a whole; installing a module IV 16, wherein the steel wire rope sleeves 63 of the module IV 16 are lapped and crossed with the steel wire rope sleeves 63 bound into a whole by the module I13, the module II 14 and the module III 15; inserting pin tumbler steel bars 64 into the crossing areas of the four wire rope sleeves 63 along the height direction, and particularly, disconnecting the upper and lower layers of pin tumbler steel bars 64; and pouring concrete in the closed rectangular vertical hole, so as to realize the connection of the first module 13, the second module 14, the third module 15 and the fourth module 16.

Fig. 15 to 17 provide a preferred embodiment of the top plate connecting node 35 of the present invention, a plurality of top plate connecting nodes 35 are arranged between the top plates 26 of the adjacent modules one 13 and two 14 on the same layer to realize the connection of the top plates of the adjacent precast concrete functional modules on the same layer, the distance between the adjacent top plate connecting nodes 35 is 1.5 to 2m, and no top plate connecting node is arranged at the corner of the top plate 26. Specifically, pre-embedded steel plates 65 are arranged at positions corresponding to the top plate connection nodes 35 of the first module 13 and the second module 14 on the top plate 26 of the first module 13, and after the first module 13 and the second module 14 are installed on the construction site, the pre-embedded steel plates 65 are respectively connected with the pre-embedded steel plates 65 on the top plate 26 of the first module 13 and the pre-embedded steel plates 65 on the top plate 26 of the second module 14 through the connection steel plates 66 in a welding mode, and welding seams 67 are arranged along the peripheries of the connection steel plates 66. As shown in fig. 17, the upper surface of the embedded steel plate 65 of the top plate 26 is 15-20 mm lower than the upper surface of the top plate 26, and the upper surface of the connecting steel plate 66 is lower than the upper surface of the top plate 26, so that the upper surface of the top plate 26 of the precast concrete functional module on the layer is not protruded after the construction of the top plate connecting node is completed.

As shown in fig. 2, 7 to 11, and 13 to 14, an installation gap with a width of about 10mm is formed between adjacent precast concrete functional modules 1 for adjusting the installation accuracy of the precast concrete functional modules 1, and the installation gaps at the positions of the side nodes 31 of the modules on the same layer, the middle nodes 32 of the modules on the same layer, and the connecting nodes 33 of the modules on the upper layer and the lower layer are sealed by sealing rods 34. After all the precast concrete functional modules 1 on the same layer are installed and all the connecting node connecting pieces are arranged, the post-cast concrete in the vertical holes 41, the side nodes 31 of the modules on the same layer and the middle nodes 32 of the modules on the same layer are poured at the same time, so that the connection among different precast concrete functional modules 1 is realized.

Through the connection structure, the short-length end part main stress area 5 of different precast concrete functional modules 1 is connected into a main stress area with a large overall length through the same-layer module side node 31 and the same-layer module middle node 32, the end part main stress area 5 is equivalent to frame columns uniformly distributed along the whole building, the thin inner wall 24 is equivalent to an inclined strut among the frame columns, the whole structure forms a space frame strut high-efficiency lateral force resisting system, the lateral rigidity of the whole structure is greatly improved, and the precast concrete functional modules 1 are ensured to be used for the building with a high height.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes and substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A precast concrete module building is formed by splicing precast concrete functional modules (1), and is characterized in that the precast concrete functional modules (1) are formed by integrally pouring concrete, a building functional space is formed by enclosing an outer wall (23), an inner wall (24), a bottom plate (25) and a top plate (26), and a window opening (21) or a door opening (22) is formed according to building functional requirements; the outer wall (23) adopts an integrated outer wall with a heat insulation structure filled with heat insulation boards (27) and has the thickness of 160-250 mm; the inner wall (24) is a solid concrete wall with the thickness of 80-120 mm, and a single-layer reinforcing mesh is arranged inside the inner wall; the bottom of the bottom plate (25) is provided with a rib beam which is a ribbed floor.

2. The precast concrete module building of claim 1, wherein different precast concrete functional modules (1) of the whole building are connected into a whole structure through a module edge node (31) on the same floor, a module middle node (32) on the same floor, a module connecting node (33) on the upper floor and a module connecting node (33) on the lower floor and a roof connecting node (35) to form a spatial lateral force resisting structure system.

3. The precast concrete module building of claim 1 or 2, characterized in that end main stress areas (5) are arranged at the corners of the wall body of the precast concrete functional module (1) and at the two ends of the window opening (21) or the door opening (22), a vertical hole (41) is arranged in the end main stress area (5), the vertical hole (41) penetrates through the precast concrete functional module (1) along the height direction, a vertical stress steel bar (51) is arranged in the vertical hole (41) to provide the lateral resistance, and a vertical construction steel bar (52) and a stirrup (53) are arranged outside the vertical hole (41) of the end main stress area (5) to form the stirrup restraint effect on the concrete in the end main stress area (5).

4. The precast concrete module building of claim 3, wherein the section of the vertical hole (41) of the end main stress area (5) is circular or elliptical, the size along the thickness direction of the wall body is not less than 90mm, 1-2 vertical stress steel bars (51) are arranged in each vertical hole (41), and the positions and the number of the vertical holes (41) are determined according to the calculated reinforcement area of the vertical stress steel bars (51);

the length that the vertical atress reinforcing bar of lower floor's module (511) stretches out lower floor's module (17) roof (26) is 100 ~ 400mm, and the vertical atress reinforcing bar of different lower floor's module (511) stretches out the length and differs 200mm, adopts steel bar joint (513) to continue to connect the vertical atress reinforcing bar of upper strata module (512) at the vertical atress reinforcing bar of lower floor's module (511) top, then hoisting dress upper module (18).

5. The precast concrete module building of claim 2, wherein the same-floor module edge node (31) is used for connecting two precast concrete functional modules (1) at the periphery of the same-floor building, a through vertical groove (42) is formed in the wall corner of the precast concrete functional module (1) at the same-floor module edge node (31) along the height direction, a plurality of key grooves (44) are formed in the side surface of the vertical groove (42) along the height direction, the vertical grooves (42) are enclosed to form a closed vertical hole after the two adjacent precast concrete functional modules (1) are installed, and the two adjacent precast concrete functional modules (1) are connected after concrete is poured in the closed vertical hole;

or a plurality of threaded sleeves (62) are embedded in the side face of the vertical groove (42) along the height direction, connecting steel bars (61) are screwed in before installation in a construction site, and the connecting steel bars are anchored into post-cast concrete, so that the integrity of the module edge nodes (31) on the same layer is enhanced;

or, a plurality of steel wire rope sleeves (63) are pre-buried along the height direction on the side surface of the vertical groove (42), after two adjacent precast concrete functional modules (1) are installed, the steel wire rope sleeves (63) extending out of the side surface of the vertical groove (42) of the adjacent precast concrete functional modules (1) are crossed and overlapped, and a pin bolt steel bar (64) is inserted into a crossed area along the height direction, so that the integrity of the module edge node (31) on the same layer is enhanced.

6. The precast concrete module building of claim 2, wherein no vertical groove (42) is formed in the corner of the wall body of the precast concrete functional module (1) at the same-layer module edge node (31), a plurality of embedded steel plates (65) are embedded in the corner of the outer wall (23) of the precast concrete functional module (1) close to the same-layer module edge node (31) along the height direction, and after two adjacent precast concrete functional modules (1) are installed, the two adjacent precast concrete functional modules (1) are respectively connected with the embedded steel plates (65) of the two adjacent precast concrete functional modules (1) in a welding mode through connecting steel plates (66), so that the two adjacent precast concrete functional modules (1) are connected.

7. The precast concrete module building of claim 2, wherein the same-floor module intermediate node (32) is used for connecting four adjacent precast concrete functional modules (1) on the same floor in the building, a through-height chamfer (43) is arranged at a corner of a wall body of each precast concrete functional module (1) at the position of the same-floor module intermediate node (32) along the height direction, a plurality of key slots (44) are arranged at the side surface of each chamfer (43) along the height direction, the chamfer (43) is enclosed to form a closed rectangular vertical hole after the installation of the four adjacent precast concrete functional modules (1), the four adjacent precast concrete functional modules (1) are connected after the post-pouring concrete in the closed rectangular vertical hole is poured, and vertical stress steel bars (51) are arranged at the four corners of the closed rectangular vertical hole.

8. The precast concrete module building of claim 7, wherein a plurality of threaded sleeves (62) are embedded in the side surfaces of the cut corners (43) along the height direction, the threaded sleeves (62) of the three precast concrete functional modules (1) which are installed first are screwed into the connecting steel bars (61) with the length close to the side length of the rectangular vertical hole, and the fourth precast concrete functional module (1) which is installed last is screwed into the connecting steel bars (61) with the length close to the half length of the rectangular vertical hole in advance before installation, so that the connecting steel bars (61) on the side surfaces of the four precast concrete functional modules (1) are prevented from colliding in the installation process;

or a plurality of steel wire rope sleeves (63) are pre-embedded in the side face of the corner cut (43) along the height direction, the three prefabricated concrete functional modules (1) which are installed firstly and located at the same height are bound into a whole, finally, a fourth prefabricated concrete functional module (1) is installed, and pin bolt steel bars (64) are inserted into the cross area of the four steel wire rope sleeves (63) along the height direction.

9. The precast concrete module building of claim 1 or 2, wherein a plurality of top plate connecting nodes (35) are arranged along the top plate (26) of the adjacent precast concrete functional modules (1) on the same floor to realize the connection of the top plates (26) of the adjacent precast concrete functional modules (1) on the same floor, and the distance between the adjacent top plate connecting nodes (35) is 1.5-2 m;

arranging pre-buried steel plates (65) at positions corresponding to the top plate connecting nodes (35) of the top plate (26), and after the two adjacent precast concrete functional modules (1) are installed, respectively welding and connecting the pre-buried steel plates (65) on the top plates (26) of the two adjacent precast concrete functional modules (1) through connecting steel plates (66) to complete the connecting construction of the top plate connecting nodes (35);

the upper surface of the embedded steel plate (65) of the top plate (26) is 15-20 mm lower than that of the top plate (26), and the upper surface of the connecting steel plate (66) of the top plate connecting node (35) is lower than that of the top plate (26).

10. The precast concrete module building of claim 3, wherein post-cast concrete in the vertical holes (41), the side nodes (31) of the modules at the same layer and the middle nodes (32) of the modules at the same layer are simultaneously poured, so that the connection among different precast concrete functional modules (1) is realized.

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