CN223151330U - Building prefabricated component system and assembled building - Google Patents
Building prefabricated component system and assembled buildingInfo
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- CN223151330U CN223151330U CN202421741448.4U CN202421741448U CN223151330U CN 223151330 U CN223151330 U CN 223151330U CN 202421741448 U CN202421741448 U CN 202421741448U CN 223151330 U CN223151330 U CN 223151330U
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Abstract
The utility model relates to the technical field of prefabricated building construction, and particularly discloses a prefabricated building component system and an assembled building, wherein the prefabricated building component system comprises prefabricated columns, prefabricated beam plates and prefabricated floors, each prefabricated column comprises a prefabricated column head and a prefabricated column tail used for being installed on a building foundation, casting sleeves are embedded in the prefabricated column tail, the prefabricated beam plates are connected to the prefabricated column heads, the prefabricated beam plates are installed at space positions formed by the prefabricated columns and the prefabricated Liang Banwei in a combined mode, the prefabricated building component system optimizes the structures of the prefabricated columns and the prefabricated floors, accordingly prefabrication efficiency is improved, meanwhile, structural form optimization is carried out on the connecting positions of the prefabricated components, connection firmness can be improved in the connecting process of the prefabricated components and the cast-in-situ structure, the safety and reliability of the connecting positions are guaranteed, an integral and complete assembled building integral structure is formed, and construction safety and later use safety are guaranteed.
Description
Technical Field
The utility model relates to the technical field of assembled factory building construction, in particular to a building prefabricated part system and an assembled building.
Background
The assembly type building is carried out by transferring the traditional operation modes of casting, building and constructing on site to a prefabrication factory, and the construction of the building engineering is completed by mass production of a large number of parts in the building structure in the prefabrication factory and on-site splicing, so that the on-site construction operation content is greatly reduced.
The method has the advantages of saving energy and protecting environment, shortening construction period, saving templates, saving labor, reducing construction safety accidents and the like, for example, the method can save 60 percent of construction water, 20 percent of materials and 80 percent of construction waste, and can avoid the problem that each prefabricated part of the building can be synchronously manufactured in the field construction process and can only be constructed according to working procedures, thereby overcoming the time waste, greatly shortening the construction period, greatly reducing the field construction strength, and even omitting the working procedures of building and plastering, further shortening the whole construction period, saving templates, and approximately reducing the construction of scaffolds and brackets about 70 percent of construction safety accidents.
The prefabricated building is prefabricated through the mill, and then is assembled and installed on site through various connection modes to form a complete integral building structure, but in the construction process of the prefabricated building structure, the following problems exist:
Firstly, in the prefabrication process of the existing assembly type structure, the problems of low prefabrication efficiency, inconvenience in connection and infirm connection during assembly and installation and the like are caused by unreasonable structural disassembly of each part;
Secondly, in the construction process of the assembled building, a large amount of hoisting operation contents exist, and the existing hoisting construction operation has the problems of unreasonable hoisting point selection and unsafe hoisting of a hoisting tool;
Thirdly, when the assembly type building is installed and assembled, the problem that the connecting position and the connecting mode are unreasonable exists, so that the connecting position is weak, the earthquake resistance and the overall performance of the building structure are reduced, the construction quality is influenced, and the potential safety hazard is caused.
The prefabricated part structure of the prefabricated building has the advantages that the prefabricated building structure and the prefabricated building parts in the mode are connected, the quality of the assembled building is directly related, the prefabricated building structure has an important effect of guaranteeing site safety construction and improving construction efficiency, and the installation and construction process of the assembled building structure can be influenced by the prefabricated part structure mode of the assembled building, so that the high efficiency, safety and construction quality of the installation and construction process of the assembled building structure are guaranteed in the design process of the assembled building structure, and the assembled building structure in the mode is a problem to be considered seriously in the construction process of the assembled building.
Disclosure of utility model
At least one of the purposes of the utility model is to provide a prefabricated building component system and an assembled building, which aims at the problems that the prefabricated efficiency is low, and the quality safety of the building structure is affected due to the fact that the connection part is weak because the structural design of an assembled prefabricated component is unreasonable in the construction process of the assembled building.
In order to achieve the above object, the present utility model adopts a technical scheme including the following aspects.
The utility model provides a building prefabricated component system, this building prefabricated component system includes precast column, precast beam board and precast floor, the precast column includes precast column head and is used for installing the precast column afterbody on building foundation, the precast column afterbody buries and has been built the sleeve, precast beam board connects on precast column head, precast beam board installs the space position that closes the formation by precast column and prefabrication Liang Banwei, the post muscle has been buried in the precast column, and the post muscle of precast column head stretches out the tip outside to insert in the sleeve of pouring of being connected to the precast column of previous floor, arrange the foundation bar that is used for precast column afterbody connection on the building foundation, the foundation bar inserts in being connected to the sleeve of pouring of precast column afterbody, forms foundation pouring section between precast column afterbody and the building foundation of bottom precast column, realizes the fixed mounting of precast column after the foundation pouring section concreting.
The prefabricated column is used as a main bearing component of an assembled building, bears main load of an upper structure, is safe in construction and safe in later operation of the whole assembled building structure, has good stability and integrity, is required to ensure that the pre-embedded column ribs in the prefabricated column can ensure the structural strength of the prefabricated column, meanwhile, a casting sleeve is arranged at the tail part of the prefabricated column, the column ribs at the head part of the prefabricated column are inserted into the casting sleeve connected with the tail part of the prefabricated column at the upper layer, and concrete is cast through grouting holes arranged at the tail part of the prefabricated column, so that the connection between the prefabricated column at the upper layer and the prefabricated column at the lower layer is firm, foundation steel bars are arranged on a building foundation, the prefabricated column can be accurately sleeved on the column ribs at the head part of the next layer, the positioning effect is achieved, the problem that the traditional assembled building structure is inconvenient to connect in assembly and installation is solved, and a foundation casting section is formed between the tail part of the prefabricated column at the bottom layer of the prefabricated column and a building foundation, and the connection is firm through cast-in-place concrete.
Further, each pouring sleeve is provided with a grouting hole, all grouting holes are concentrated on two adjacent sides of the tail of the prefabricated column, grouting in the pouring sleeve is facilitated, and grouting is conducted on the first pouring section through the pouring sleeve.
The prefabricated column of bottom installs the one deck prefabricated component on the prefabricated column of bottom, including the prefabricated column of last layer, prefabricated floor and precast beam board, the column muscle on the prefabricated column head of bottom inserts and connects in the prefabricated column afterbody of last layer prefabricated column pours the sleeve, extends the column muscle length of prefabricated column head tip and is greater than the degree of depth of inserting in the pouring sleeve for the prefabricated column head tip of bottom and the prefabricated column afterbody tip of last layer prefabricated column form first section of pouring now, precast beam board installs at the prefabricated column head, and precast beam board's tip just is first section of pouring now, makes two-layer precast column connection in vertical direction through pouring first section, makes precast beam board and precast column connection simultaneously on the horizontal direction, precast floor hoist and mount are installed in the space that closes by precast column and prefabrication Liang Banwei, form the second section of pouring now between prefabricated floor and the precast beam board, still be provided with the grout hole in the prefabricated column afterbody outside, the grout hole communicates with each other with pouring the sleeve.
Preferably, the prefabricated column is supported by a fixing part in the installation process, the fixing part comprises a telescopic diagonal brace, a connecting piece is embedded in the middle of the prefabricated column and close to one end of the prefabricated column head, one end of the diagonal brace is hinged to the connecting piece, and the other end of the diagonal brace is fixed to a building foundation or a second cast-in-situ building section. When the prefabricated columns of the bottom layer are supported, the diagonal brace is fixed on the building foundation, and when the prefabricated columns of the second layer and above are supported, the diagonal brace is fixed on the second casting section.
Through pre-buried connecting piece in the precast column to adopt telescopic diagonal brace to support the precast column, adjust the length of diagonal brace through telescopic structure, thereby adjust the straightness that hangs down of precast column, when guaranteeing diagonal brace to support the precast column, the axis of precast column is in the vertical state.
Further, the connecting piece comprises a fixed plate welded on the column rib inside the prefabricated column, a connecting plate is vertically welded on the fixed plate, one end of the diagonal brace is hinged on the connecting plate, and the other end of the diagonal brace is welded and fixed on the building foundation or the second cast-in-situ building section through a reinforcing steel bar section pre-buried on the building foundation or the second cast-in-situ column section.
The prefabricated column is further provided with an exhaust hole, the exhaust hole is communicated with the first cast-in-place column section and air outside the prefabricated column, so that when the first cast-in-place section is cast by adopting a closed space, the air in the closed area is discharged, the casting quality is ensured, and the casting compactness is improved.
Further, the cross section shape of the prefabricated column is square, the pouring sleeve is arranged around the end face of the tail of the prefabricated column, a quadrangular frustum pyramid-shaped pouring hole is further formed in the middle of the end face of the tail of the prefabricated column, one end of the air vent is communicated with the outer side of the prefabricated column, and the other end of the air vent is communicated with the pouring hole.
The end face of the prefabricated tail part is provided with the quadrangular frustum pyramid-shaped pouring hole, and the exhaust hole is communicated with the quadrangular frustum pyramid-shaped pouring hole, so that on one hand, the connection integrity of the prefabricated column and the cast-in-situ column section is improved, on the other hand, the grouting is ensured to be full, the first cast-in-situ column section and the pouring hole are fully and completely discharged in the grouting process, and the concrete pouring quality is improved.
Preferably, when installing the precast floor slab, a pouring sleeve for inserting and connecting the floor slab reinforcing steel bars at the end parts of the adjacent precast floor slabs is embedded in the precast floor slab, a floor slab exhaust hole is further formed in the embedded part of the pouring sleeve of the precast floor slab, one end of the pouring sleeve is flush with the end parts of the precast floor slabs, and the other end of the pouring sleeve is communicated with the floor slab exhaust hole, so that when splicing two adjacent precast floor slabs, the floor slab reinforcing steel bars at one end of the precast floor slab are inserted and installed in the adjacent precast floor slab pouring sleeve, and the two sides of the precast floor slab are lapped on precast beam slabs, so that the integral effect of splicing the precast floor slabs is improved, the firm connection is ensured, and the quality of an assembled building is improved;
Further, the length of the floor slab reinforcing steel bars at the ends of the precast floor slabs is larger than the depth of the inserted casting sleeve, so that a third cast-in-place section space with a certain width is formed between the ends of two adjacent precast floor slabs, and the two adjacent precast floor slabs are firmly connected through the subsequent cast-in-place concrete.
Preferably, the floor reinforcing steel bar comprises a floor transverse rib arranged along the length direction of the prefabricated floor, and a floor longitudinal rib vertically arranged with the floor transverse rib, the floor transverse rib comprises a first transverse rib and a second transverse rib which are arranged side by side, one end of the first transverse rib extends out of the end of the prefabricated floor, the other end of the first transverse rib is inserted and connected in a pouring sleeve, one end of the second transverse rib is buried in the prefabricated floor, the other end of the second transverse rib extends out of the end of the prefabricated floor, a pouring sleeve is arranged on the end of the prefabricated floor, when two adjacent prefabricated floors are spliced, the first transverse rib of the second prefabricated floor is inserted and connected in the pouring sleeve of the first prefabricated floor, when concrete is poured, the pouring sleeve is embedded and fixed in the prefabricated floor, the connection is firmer after the pouring sleeve is filled with concrete, the connection strength of the two adjacent prefabricated floors is further improved, a denser reinforcing steel bar structure is formed in a third pouring section, the strength of the third pouring section is improved, the splicing safety of the prefabricated floor is guaranteed, and the bearing capacity of the prefabricated floor is further improved.
Further, the floor reinforcing bar still includes a plurality of strengthening rib bars that arrange side by side, and the prefabricated floor includes concrete layer, every strengthening rib bar part buries into the concrete layer, every strengthening rib bar includes a plurality of frame rib bars that arrange side by side, through the first oblique muscle fixed connection of wavy between two adjacent frame rib bars, every frame rib bar includes parallel arrangement's first horizontal muscle and the horizontal muscle of second, connects through the second oblique muscle of wavy between first horizontal muscle and the horizontal muscle of second, the whole of first horizontal muscle and the part of the oblique muscle of second are buried into in the concrete layer.
Further, the both ends of vertical muscle extend precast floor slab's both sides side to the both ends of vertical muscle are colluded the column structure, and precast floor slab's both sides overlap joint is on precast beam board, colludes column structure's vertical muscle embedding in the concrete of pouring now, can improve firm in connection degree, guarantees precast floor slab bearing capacity and intensity.
Preferably, when hoisting the prefabricated floor, set up four floor hoisting points on the prefabricated floor, four floor hoisting points are arranged on the strengthening rib, hoist on the floor hoisting point through the hoist cable connection of rectangular frame lifting frame, arrange the hoisting point on the strengthening rib, be convenient for set up the hoisting point on the one hand, on the other hand can guarantee to hoist by crane safety, solved the unreasonable problem of hoisting point selection in the current construction operation process.
Preferably, when installing the precast beam slab, the precast beam slab that adopts is built-in installs and pours sleeve and beam slab reinforcing bar, it is pre-buried in being close to precast beam slab tip to pour the sleeve, beam slab reinforcing bar extends precast beam slab's both ends terminal surface and both sides side, and precast beam slab's pouring sleeve is used for adjacent precast beam slab tip outside beam slab reinforcing bar to insert and connects, still is provided with beam slab exhaust hole at precast beam slab's the sleeve pre-buried position of pouring, pour sleeve one end and precast beam slab's tip parallel and level, the other end intercommunication beam slab exhaust hole, when two adjacent precast beam slabs splice, the beam slab reinforcing bar of precast beam slab one end inserts and installs in adjacent precast beam slab's pouring sleeve, and precast beam slab both sides and precast floor splice the back and form the second and pour the section now for pour the concrete and connect, and beam slab exhaust hole is used for discharging the air of pouring in the sleeve at cast-in-situ process.
In the process of manufacturing the precast beam plates, the casting sleeve is pre-embedded in the precast beam plates, and beam plate reinforcing steel bars of adjacent precast beam plates are inserted into and connected with the casting sleeve to perform concrete casting, so that the overall effect of splicing the precast beam plates can be improved, firm connection is ensured, and the quality of an assembled building is improved;
Further, the length of precast beam board tip beam slab reinforcing bar is greater than the degree of depth of inserting in pouring the sleeve for form the section of pouring now between two adjacent precast beam board tip, under the general circumstances, connect through the precast column between two adjacent precast beam boards, be first section of pouring now between two adjacent precast beam board tip, through the concrete of pouring in situ of follow-up, realize the connection between two adjacent precast beam boards and two adjacent precast columns.
Preferably, the beam slab steel bar in the precast beam slab comprises a beam slab transverse bar and a beam slab longitudinal bar, the beam slab transverse bar is arranged along the length direction of the precast beam slab, the beam slab longitudinal bar is arranged along the width direction of the precast beam slab, the beam slab transverse bar comprises a first beam slab transverse bar and a second beam slab transverse bar which are arranged side by side, one end of the first beam slab transverse bar extends out of the precast beam slab end, the other end of the first beam slab transverse bar is inserted and connected in a casting sleeve, one end of the second beam slab transverse bar is buried in the precast beam slab, the other end of the second beam slab transverse bar extends out of the precast beam slab end provided with the casting sleeve, when two adjacent precast beam slabs are spliced, the first beam slab transverse bar of the second precast beam slab is inserted and connected in the casting sleeve of the first precast beam slab, and when concrete is cast, the casting sleeve is embedded and fixed in the precast beam slab, the connection is firmer after the casting sleeve is filled with concrete, the connection strength of the adjacent two precast beam slabs is further improved, the splicing safety of the precast beam slabs is guaranteed, and the bearing capacity of the precast beam slabs is further improved.
Further, when two adjacent precast beam boards are spliced, after the first beam board transverse ribs of the second precast beam boards pass through the column ribs of the precast columns, the first beam board transverse ribs are inserted into the casting sleeve of the first precast beam boards, so that the second beam board transverse ribs are vertically arranged with the column ribs of the precast columns, and form a mode of interval staggered arrangement, and the precast beam boards and the precast columns form an integral structure through casting first cast sections.
Correspondingly, the utility model also provides an assembled building, which is formed by assembling the building prefabricated component system, and comprises the prefabricated columns, the prefabricated beam plates and the prefabricated floor slabs, wherein the prefabricated columns are arranged on a building foundation, foundation reinforcing steel bars are anchored on the building foundation, the prefabricated column pouring sleeves are sleeved and connected on the foundation reinforcing steel bars, the prefabricated columns and the building foundation are connected by foundation pouring sections between the prefabricated columns and the building foundation, and the prefabricated components comprising the prefabricated beam plates and the prefabricated floor slabs are spliced and arranged on the prefabricated columns to form the assembled building.
The anti-floating anchor rod is arranged on a building foundation, the anti-floating anchor rod is arranged in an anchor hole which is drilled in advance, a plurality of anchor bars are arranged in the anchor hole, the anchor bars are fixedly connected to the periphery of a fixed pipe, a plurality of positioning stirrups are further connected to the anchor bars, and the plurality of anchor bars and the positioning stirrups which are fixed by the fixed pipe are integrally arranged in the anchor hole and are poured with concrete.
The anti-floating anchor rod top passes through the foundation cushion layer and the bottom plate in sequence, the anchor bars at the top of the anti-floating anchor rod are bent into L shapes and embedded in the bottom plate, and the foundation transverse bars are connected on the anchor bars bent into L shapes, the foundation transverse bars are fixedly connected with the foundation reinforcing bars, the foundation reinforcing bars are used for being inserted and connected in a pouring sleeve embedded in the prefabricated column, the top of the anti-floating anchor rod is further provided with a waterproof structure, and the waterproof structure comprises an expansion water stop ring sleeved outside the anti-floating anchor rod and a sealing paste layer coated on the expansion water stop ring.
In summary, due to the adoption of the technical scheme, the utility model has at least the following beneficial effects:
1. The construction prefabricated part system of the scheme is adopted to split the main prefabricated part in the construction structure, comprises the prefabricated column, the prefabricated beam plate and the prefabricated floor slab in the independent structural form, is assembled and installed, and is cast and connected in the way of casting at the joint part, so that the structure of each part is consistent, the prefabrication efficiency is greatly improved, the connection is convenient, and the stability and the integrity of the connection are also improved;
2. According to the scheme, the prefabricated building is arranged on the anti-floating foundation, the anti-floating anchor rods are arranged on the anti-floating foundation, the prefabricated building can achieve an effective anti-floating effect, and meanwhile, the prefabricated columns and the anti-floating foundation are connected to form an integral structure, so that the structural stability and the building quality of the prefabricated building are improved.
Drawings
Fig. 1 is a schematic view of a structure of an assembled building structure supported by fixing members according to the present utility model.
Fig. 2 is a schematic view of the reinforcement structure of the prefabricated column in the present utility model.
FIG. 3 is a schematic elevational view of a prefabricated column according to the present utility model.
FIG. 4 is a schematic view of the structure of the connection part of two layers of prefabricated columns in the utility model.
Fig. 5 is a schematic cross-sectional view of C-C of fig. 3.
Fig. 6 is a schematic cross-sectional view of B-B of fig. 2.
Fig. 7 is a schematic cross-sectional view of A-A of fig. 2.
Fig. 8 is a plan view of a precast floor plank in the present utility model.
Fig. 9 is a schematic cross-sectional view of E-E of fig. 8.
Fig. 10 is a schematic cross-sectional view of D-D in fig. 8.
Fig. 11 is a schematic structural view of splicing two adjacent prefabricated floors in the utility model.
Fig. 12 is a schematic view of the reinforcement structure of the prefabricated floor slab according to the present utility model.
Fig. 13 is a schematic view of a reinforcement structure of another embodiment of a precast floor plank in the present utility model.
Fig. 14 is a schematic view of a reinforcement structure of another embodiment of a precast floor plank in the present utility model.
Fig. 15 is a schematic view showing the connection structure of each component in the system of the building prefabricated parts according to the present utility model.
Fig. 16 is a plan view of a precast beam deck according to the present utility model.
FIG. 17 is a schematic cross-sectional view of F-F in FIG. 16.
Fig. 18 is a schematic cross-sectional view of G-G of fig. 16.
Fig. 19 is a schematic view of a reinforcement structure of a precast beam slab according to the present utility model.
Fig. 20 is a schematic structural view of an anti-floating anchor according to the present utility model.
FIG. 21 is a schematic cross-sectional view of H-H of FIG. 20.
The marks in the figure are as follows: 1-prefabricated column, 101-prefabricated column head, 102-prefabricated column tail, 103-column rib, 1031-longitudinal column rib, 1032-round column rib, 104-prefabricated column lifting lug, 105-grouting hole, 106-grouting hole, 107-exhaust hole, 108-casting hole, 109-fixing component, 1091-diagonal brace, 1092-connecting piece, 1092 a-fixing plate, 1092 b-connecting plate, 1093-reinforcing bar section, 2-prefabricated beam plate, 21-beam plate reinforcing bar, 211-beam plate transverse rib, 2111-first beam plate transverse rib, 2112-second beam plate transverse rib, 212-beam plate longitudinal rib, 22-beam plate surface layer skeleton, 221-skeleton bottom rib, 222-skeleton top rib, 223-skeleton diagonal rib, 201-beam plate exhaust hole, 202-beam plate prefabricated layer, 3-precast floor panels, 31-floor reinforcing bars, 301-concrete layers, 302-floor exhaust holes, 303-upper panels, 311-floor transverse bars, 3111-first transverse bars, 3112-second transverse bars, 312-floor longitudinal bars, 313-reinforcing bars, 314-framing bars, 3141-first transverse bars, 3142-second transverse bars, 315-first diagonal bars, 316-second diagonal bars, 317-upper layer of bars, 4-building foundations, 41-anti-floating anchors, 401-foundation reinforcing bars, 402-anchor holes, 403-anchor bars, 404-fixed pipes, 405-positioning stirrups, 406-foundation mats, 407-expanded water-stop rings, 408-sealing layers, 409-floors, 410-foundation transverse bars, 5-pouring sleeves, 6-first cast-in-place sections, 7-second cast-in-place sections, 8-third cast-in-place sections, 9-floor lifting points and 10-foundation casting sections.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, so that the objects, technical solutions and advantages of the present utility model will become more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Examples
The embodiment shows a building prefabricated component system, as shown in fig. 1-10, comprising a prefabricated column 1, a prefabricated beam slab 2 and a prefabricated floor slab 3, wherein the prefabricated column 1, the prefabricated beam slab 2 and the prefabricated floor slab 3 are assembled, and the cast-in-place sections are combined and cast, so that an assembled building is formed.
As shown in fig. 1-8, the prefabricated column 1 comprises a prefabricated column head 101 and a prefabricated column tail 102 installed on an anti-floating foundation, when the prefabricated column 1 is installed, the prefabricated column head 101 is installed upwards, the prefabricated column head is used for connecting the prefabricated column 1 of the upper layer, or is simultaneously used for connecting the prefabricated column 1 of the upper layer and the prefabricated beam plate 2 of the upper layer, and is installed with the prefabricated floor slab 3 of the upper layer, the prefabricated column tail 102 is used for being installed downwards and is installed on a building foundation 4, or is used for connecting the prefabricated column 1 of the next layer, column ribs 103 are embedded in the prefabricated column 1, the column ribs 103 comprise ring column ribs 1032 which are arranged along the length direction of the longitudinal column ribs 1031 at intervals, the ring column ribs 1032 are arranged more densely near two end parts of the prefabricated column 1, the distance between 60-80 mm, the distance between the arrangement distance between the prefabricated column middle parts is between 100-150 mm, the column ribs 103 of the precast column head 101 extend out of the end parts, the precast column ribs 103 are connected with the precast column tail 102, the precast column ribs 5 are embedded in the end parts of the precast column tail 102, and the precast column tail 102 is flush with the precast column 5 end parts of the precast column 102; the section of the precast column 1 is square, precast column lifting lugs 104 are arranged on the precast column head 101, the precast column lifting lugs 104 are approximately W-shaped, bending parts at two ends are buried in the precast column head 101, the bending part at the middle part is positioned at the outer side of the precast column head and used as a hanging part of a lifting appliance during lifting, a grouting hole 105 is arranged on each casting sleeve 5, all grouting holes 105 are concentrated on two adjacent sides of the precast column tail 102, as shown in figure 3, grouting is conveniently carried out in the casting sleeve 5, grouting is carried out on a first cast-in-place section 6 through the casting sleeve 5, in order to ensure full grouting in the casting sleeve 5, the precast column 1 is also provided with an exhaust hole 107, the exhaust hole 107 is used for communicating the first cast-in-place column section 6 with air outside the precast column 1, when the first cast-in-place column section 6 and the casting sleeve 5 are cast, the air of two casting positions is discharged outside to avoid generating bubbles and ensure casting quality, as a preferential implementation mode, the precast column tail 102 is also provided with a slurry outlet 106, the distance between the slurry outlet 106 and the casting first cast-in-place column section 6 is larger than the distance between the slurry inlet 105 and the casting first cast-in-place column section 6, the slurry outlet 106 is communicated with the inner space of the casting sleeve and led to the outer side of the precast column 1, the slurry outlet 106 is arranged to facilitate the casting of the casting sleeve 5, when the casting sleeve 5 and the first cast-in-place section 6 are filled with concrete, the slurry outlet 106 can be omitted, and when the casting sleeve 5 and the first cast-in-place section 6 are filled with concrete, the slurry outlet 107 firstly discharges the gas in the inner space, and then the slurry overflows from the exhaust hole 107 to mark that the casting sleeve 5 and the first cast-in-place section 6 are filled with concrete.
As shown in fig. 1 and 5, the pouring sleeve 5 is arranged around the end face of the prefabricated column tail 102, a square frustum pyramid-shaped pouring hole 108 is further formed in the middle of the end face of the prefabricated column tail 102, one end of the air outlet 107 is communicated with the outer side of the prefabricated column 1, the other end of the air outlet 107 is communicated with the pouring hole 108, the pouring hole 108 can improve the connection integrity of the prefabricated column 1 and the cast-in-situ column section 6, the effect that air overflows fully can be achieved in the process of pouring the first cast-in-situ column section 6, and the concrete pouring quality is improved.
After the prefabricated column 1 is lifted in place and before the first cast-in-place column section 6 is poured, fixing parts 109 are adopted to fix the prefabricated column 1, the fixing parts 109 comprise telescopic inclined supporting rods 1091, connecting pieces 1092 are embedded at one ends, close to the head 101 of the prefabricated column, of the prefabricated column 1, one ends of the inclined supporting rods 1091 are hinged to the connecting pieces 1092, the other ends of the inclined supporting rods 1091 are fixed to a building foundation 4 or a second cast-in-place section 7 (a cast-in-place position between a precast beam plate and a precast floor slab 3), when the prefabricated column 1 at the bottom layer is supported, the inclined supporting rods 1091 are fixed to the building foundation 4, when the prefabricated column 1 at the second layer and above is supported, the inclined supporting rods 1091 are fixed to the second cast-in-place section 7, the connecting pieces 1092 comprise fixing plates 1092a welded to the inner column ribs 103 of the prefabricated column 1, the inclined supporting rods 1091 are hinged to the connecting plates 1092b, the inclined supporting rods 1091 are fixed to the building foundation 4 or the second cast-in-place section 7 in-place (cast-in-place position) in-place section, and the inclined supporting rods 1091 are welded to the first cast-in-place section and the second cast-in-place section is a telescopic section, the telescopic steel bar section is a telescopic steel bar structure is welded to the telescopic steel bar section, and the telescopic steel bar section is a telescopic steel bar structure.
The length of the prefabricated column 1 is 3-6 m, the distance between the exhaust hole 107 and the end part of the prefabricated column tail 102 is 500-800mm, and the length of the pouring sleeve 5 is 200-400 mm. The loop bars 1032 of the bars 103 are arranged at a higher density in the region near the head 101 and tail 102 of the prefabricated column, and the length of the first casting section 6 is between 800 and 1200 mm.
As shown in fig. 8-15, the precast floor slabs 3 are assembled in a frame enclosed by precast columns 1 and precast beam plates 2, and comprise casting sleeves 5 pre-buried at the ends, wherein the casting sleeves 5 are used for inserting and connecting floor steel bars 31 at the ends of adjacent precast floor slabs 3, a floor exhaust hole 302 is formed in the pre-buried part of each casting sleeve 5, one end of each casting sleeve 5 is flush with the ends of each precast floor slab 3, the other end of each casting sleeve is communicated with each floor exhaust hole 302, when two adjacent precast floor slabs 3 are assembled, the floor steel bars 31 at one end of each precast floor slab 3 are inserted and installed in the casting sleeves 5 of the adjacent precast floor slabs 3, two sides of each precast floor slab 5 are lapped on the precast beam plates 2, in the process of manufacturing precast floor slabs, concrete casting is carried out by pre-burying the casting sleeves 5 in the precast floor slabs 3 and inserting and connecting the floor steel bars 31 of the adjacent precast floor slabs 3 in the casting sleeves 5, the splicing integrity effect of the precast floor slabs 3 can be improved, firm connection is ensured, the quality of an assembled building is improved, the length of the floor slab steel bars at the end parts of the precast floor slabs 3 is larger than the depth of the insertion casting sleeve 5, a third casting section 8 is formed between the end parts of two adjacent precast floor slabs 3, firm connection between the two adjacent precast floor slabs 3 is further ensured through subsequent casting concrete, the floor slab steel bars 31 are arranged in the precast floor slabs 3, the floor slab steel bars 31 comprise the floor slab transverse steel bars 311 arranged along the length direction of the precast floor slabs 3 and the floor slab longitudinal steel bars 312 arranged perpendicular to the floor slab transverse steel bars 311, one embodiment is that, as shown in fig. 12, the floor slab transverse steel bars 311 comprise a first transverse steel bar 3111 and a second transverse steel bar 3112 which are arranged side by side, one end of the first transverse steel bar 3111 extends out of the end parts of the precast floor slabs, and the other end of the first transverse steel bar 3111 is inserted and connected in the casting sleeve 5, the second transverse ribs 3112 are buried in the precast floor slab 3 at one end, the precast floor slab 3 end portion with the casting sleeve 5 is arranged at the other end in an extending mode, when two adjacent precast floor slabs 3 are spliced, the second transverse ribs 3112 of the second precast floor slab 3 are inserted into the casting sleeve 5 connected with the first precast floor slab 3, when concrete is cast, the casting sleeve 5 is fixed in the precast floor slab 3 in a pre-buried mode, connection is firmer after the casting sleeve 5 is filled with concrete, connection strength of the two adjacent precast floor slabs 3 is further improved, a denser reinforced structure is formed in the third casting section 8, strength of the third casting section 8 is improved, splicing safety of the precast floor slabs 3 is guaranteed, bearing capacity of the precast floor slab 3 is improved, floor slab exhaust holes 302 are formed in the precast floor slab 3, when the third casting section 8 is cast, mortar enters the casting sleeve 5, air in the casting sleeve 5 is discharged through the floor slab exhaust holes 302, and connection is not firm due to air holes. As shown in fig. 13 and 14, two other arrangement modes of the slab transverse ribs 311 in the precast slab 3 are shown, in fig. 13, only a first transverse rib 3111 is provided, one end of the first transverse rib 3111 extends out of the end of the precast slab 3, the other end is inserted and connected in the pouring sleeve 5, the pouring sleeve 5 is pre-buried at the end of the precast slab 3, when two precast slabs 3 are spliced, the first transverse rib 3111 of another precast slab 3 is directly inserted into the pouring sleeve 5 of an adjacent precast slab 3, the slab transverse rib 311 in fig. 14 comprises a first transverse rib 3111 and a second transverse rib 3111 which are arranged side by side, one end of the first transverse rib 3111 extends out of the end of the precast slab 3, the other end is pre-buried in the precast slab 3 or extends out of the end, the arrangement mode of the second transverse rib 3112 is the same as that the end of the first transverse rib 3111 is arranged outside the end, and the other end is pre-buried outside the end of the precast slab 3, the other end is pre-buried in the end of the precast slab 3, the other end extends out of the precast slab 3 or extends out of the end outside the end, the end extends out of the end, the first transverse rib 3112 extends out of the end when the first transverse rib 3112 is larger than the length of the second end of the precast slab 3, and the second transverse rib 3112 extends out of the end of the adjacent slab 3, and the second transverse rib 3112 is connected in the two end of the precast ribs 3113.
As a preferred embodiment, the floor slab reinforcement 31 further comprises a plurality of reinforcing ribs 313 arranged side by side, the precast floor slab 3 comprises a concrete layer 301, each reinforcing rib 313 is partially embedded in the concrete layer 301, each reinforcing rib 313 comprises a plurality of frame ribs 314 arranged side by side, two adjacent frame ribs 314 are fixedly connected through a wavy first inclined rib 315, each frame rib 314 comprises a first transverse rib 3141 and a second transverse rib 3142 which are arranged in parallel, the first transverse rib 3141 and the second transverse rib 3142 are connected through a wavy second inclined rib 316, all the first transverse rib 3141 and part of the second inclined rib 316 are embedded in the concrete layer 301, and the plurality of reinforcing ribs 313 are arranged side by side in the precast floor slab 301, so that on one hand, the strength and the bearing capacity of the precast floor slab 3 can be enhanced, and on the other hand, the reinforcing ribs 313 can be used as a supporting framework structure for hoisting the precast floor slab 3, and the hoisting safety of the precast floor slab 3 is ensured; the reinforcing ribs 313 are partially embedded in the concrete layer 301, the part extending outside the concrete layer is used for binding the upper layer ribs 317 and is used for pouring the upper panel 303 so as to form a laminated plate structure with the precast floor slab 3, each reinforcing rib 313 is formed by connecting a plurality of side-by-side arranged frame ribs 314, a plurality of side-by-side arranged frame ribs 314 are connected, a first transverse rib 3141 and a second transverse rib 3142 in each frame rib 314 are connected through wavy diagonal ribs, the plurality of frame ribs 314 are arranged at equal heights, so that each frame rib 314 is embedded in the concrete layer 301 in a half way, the connection firmness degree between the reinforcing rib 313 and the precast floor slab 3 can be improved, the laminated plate formed by subsequent pouring can be kept integral, the bearing capacity of the assembled building floor slab is improved, the building quality is ensured.
In addition, the both ends of the vertical rib 312 of the floor slab of the precast floor slab 3 extend out of the both sides of the precast floor slab 3, and the both ends of the vertical rib 312 of the floor slab are in a hook structure, the both sides of the precast floor slab 3 are lapped on the precast beam slab 2, the vertical rib 312 of the floor slab of the hook structure is embedded in the concrete poured at present, the connection firmness degree can be improved, the bearing capacity and strength of the precast floor slab are ensured, in the construction process, the precast floor slab 3 is lifted and installed and subjected to position correction, then the upper layer gluten 317 of the precast floor slab 3 is bound and embedded with a water and electricity concealed pipe, the precast floor slab 3 is reset and corrected, the precast floor slab 3 is poured and vibrated, as shown in fig. 15, the concrete of the second pouring section 7 of the precast beam slab 3, the third pouring section 8 of concrete and the gluten laminate on the precast floor slab 3 are formed, the bottom joint treatment of the precast floor slab 3 is finally carried out after the pouring is finished, when the precast floor slab 3 is lifted, a rectangular frame lifting hanger is adopted, four floor slab points 9 are arranged on the precast floor slab 3, the floor slab lifting frame lifting hanger is adopted, and four floor slab points 9 are arranged on the reinforcing rib 313 are particularly, the lifting frame lifting points are avoided, on the floor slab 9 is simultaneously, the lifting and the floor slab is ensured, on the ground, and the lifting of the floor slab is convenient to be protected, and the lifting and the floor slab 9 is well due to the lifting and the lifting frame lifting and the lifting frame is arranged.
As shown in fig. 16-19, the building prefabricated component system further comprises a prefabricated beam slab 2, the prefabricated beam slab is installed between two adjacent prefabricated columns 1, a pouring sleeve 5 and beam slab reinforcing steel bars 21 are installed in the prefabricated beam slab 2in a pre-buried mode, the pouring sleeve 5 is pre-buried at the end portions close to the prefabricated beam slab 2, the beam slab reinforcing steel bars 21 extend out of the two end faces and the two side faces of the prefabricated beam slab 2, the pouring sleeve 5 is used for inserting and connecting the beam slab reinforcing steel bars 21 outside the end portions of the adjacent prefabricated beam slab 2, beam slab exhaust holes 201 are further formed in the pre-buried portion of the pouring sleeve 5 of the prefabricated beam slab 2, one end of the pouring sleeve 5 is flush with the end portions of the prefabricated beam slab 2, the other end of the pouring sleeve is communicated with the beam slab exhaust holes 201, when the two adjacent prefabricated beam slabs 2 are spliced, the beam slab reinforcing steel bars 21 at one end of the prefabricated beam slab 2 are inserted and installed in the pouring sleeve 5 of the adjacent prefabricated beam slab 2, two sides of the prefabricated beam slab 2 are spliced with the prefabricated floor 3 to form a second cast-in-place section 7 for connecting the beam slab 21 of the adjacent prefabricated beam slab 2, the cast-in-place beam slab 21 is inserted into the precast slab through the pouring sleeve 5, the cast sleeve 5 is inserted into the precast slab is connected, the length of the prefabricated beam slab is improved, and the length between the two adjacent prefabricated beam slab 2 is firmly connected between the two end portions is formed by the two adjacent prefabricated beam slab segments, and the prefabricated slab 2 is firmly connected by the end segments, and the length of the prefabricated slab is firmly connected by the prefabricated slab, and the prefabricated slab is firmly, and the length is connected between the two end and the adjacent slab is firmly, and the prefabricated slab, and the length is firmly, and the front, and the quality is firmly, and the quality is well and the quality.
As one preferred embodiment, the beam slab reinforcement 21 in the precast beam slab 2 comprises beam slab transverse ribs 211 and beam slab longitudinal ribs 212, the beam slab transverse ribs 211 are arranged along the length direction of the precast beam slab 2, the beam slab longitudinal ribs 212 are arranged along the width direction of the precast beam slab 2, the beam slab transverse ribs 211 comprise a first beam slab transverse rib 2111 and a second beam slab transverse rib 2112 which are arranged side by side, one end of the first beam slab transverse rib 2111 extends out of the precast beam slab 2 end, the other end is inserted and connected in the casting sleeve 5, one end of the second beam slab transverse rib 2112 is buried in the precast beam slab 2, the other end extends out of the precast beam slab 2 end provided with the casting sleeve 5, when two adjacent precast beam slabs 2 are spliced, the first beam slab transverse ribs 2111 of the second precast beam slab 2 are inserted into and connected with the casting sleeve 5 of the first precast beam slab 2, when concrete is cast, as the casting sleeve 5 is pre-buried and fixed in the precast beam slab 2, the connection is firmer after the casting sleeve 5 is filled with concrete, the connection strength of two adjacent precast beam slabs 2 is further improved, a denser reinforcing steel bar structure is formed in the first cast-in-place section 6, the strength of the first cast-in-place section 6 is improved, the splicing safety of the precast beam slabs 2 is ensured, the bearing capacity of the precast beam slabs 2 is further improved, and the exhaust holes are arranged at the pre-buried positions of the casting sleeve 5 of the precast beam slabs 2, so that the air in the casting sleeve 5 can be exhausted in the cast-in-place concrete process, and the problems that the casting quality and the connection strength of the precast beam slabs 2 are influenced by bubbles are avoided; when two adjacent precast beam plates 2 are spliced, the second beam plate transverse ribs 2112 of the second precast beam plate 2 pass through the column ribs 103 of the precast column 1 and are inserted into the pouring sleeve 5 connected with the first precast beam plate 2, in such a way that the second beam slab transverse ribs 2112 and the column ribs 103 of the precast column 1 are arranged in a staggered manner at intervals, when the first casting section 6 is cast, the precast beam slab 2 and the precast column 1 form an integral structure.
The precast beam slab 2 is in the installation, carries out beam slab surface course after both sides splice with precast floor slab 3 and pours, and precast beam slab 2 includes beam slab precast layer 202, and beam slab surface course pours on beam slab precast layer 202, and inside is provided with beam slab surface course reinforcing bar when beam slab surface course pours, and beam slab surface course reinforcing bar ligature is on beam slab gluten skeleton 22, and beam slab surface course skeleton 22 is connected on beam slab reinforcing bar 21, beam slab surface course skeleton 22 includes two skeleton end bars 221 that arrange side by side, two skeleton end bars 221 are pre-buried in beam slab precast layer 202 to two these skeleton end bars 221 all with beam slab reinforcing bar 21 fixed connection, beam slab surface course skeleton 22 is still including being used for arranging the skeleton top bar 222 in the beam slab precast layer 202 outside, and skeleton top bar 222 sets up the middle part top at two skeleton end bars, two skeleton end bars 221 are connected with skeleton top bar 222 through two wavy skeleton inclined bars 223, and skeleton end bars 221 are arranged side by side with beam slab transverse bar 211.
Examples
This embodiment shows an assembled building, as shown in fig. 1, 15, 20 and 21, assembled and installed by adopting the building prefabricated member system as described in embodiment 1, including the prefabricated column 1, the prefabricated beam slab 2 and the prefabricated floor slab 3, first performing foundation treatment to form a building foundation 4 for constructing the assembled building, anchoring the foundation reinforcement 401 on the building foundation 4, installing the prefabricated column 1 through the foundation reinforcement 401, then supporting and fixing the prefabricated column 1 through the fixing member, and pouring the foundation pouring section 10 between the prefabricated column 1 and the foundation reinforcement 401, after the prefabricated column 1 is stabilized, continuing to install the prefabricated column 1, the prefabricated beam slab 2 and the prefabricated floor slab 3 on the prefabricated column 1, and pouring the first pouring section 6, the second pouring section 7 and the third pouring section 8, thus circularly constructing layer by layer upwards to form the final assembled building.
When the foundation treatment is carried out, the foundation comprises an anti-floating foundation formed by construction, the anti-floating foundation comprises anchor holes 402 which are drilled in advance, a plurality of anchor bars 403 are arranged in the anchor holes 402, the anchor bars 403 are fixedly connected to the periphery of a fixed pipe 404, the fixed pipe 404 adopts a fixed iron pipe, the length is 80-150mm, the diameter is 28-40mm, the phi 32 x 2 iron pipe is adopted in the embodiment, the length L=100 is used for fixing the anchor bars 403, the anchor bars 403 are also connected with positioning stirrups 405, the integral structure formed by fixing the anchor bars 403 through the fixed pipe 404 is inserted into the anchor holes 402 and is positioned at the central part of the anchor holes 402 through the positioning stirrups 405, an anti-floating anchor rod structure is formed after grouting the anchor holes 402, then a foundation cushion layer 406 is constructed, a waterproof structure is constructed at the position of the anti-floating anchor rod passing through the foundation cushion layer 406, the waterproof structure comprises an expansion water stop ring 407 sleeved on the outer side of an anti-floating anchor rod, and a sealing paste layer 408 (polysulfide sealing paste, polyurethane sealing paste and the like) coated on the expansion water stop ring 407, wherein the expansion water stop ring 407 can expand when meeting water to achieve the aim of effective water stop, meanwhile, the sealing paste layer 408 is coated on the outer side to form a double water stop effect, after the waterproof structure is constructed, a construction bottom plate 409 is poured, before the construction is finished, an anchor bar 403 at the top of the anti-floating anchor rod is bent into an L shape, a foundation transverse bar 410 is connected on the anchor bar 403, the foundation transverse bar 410 is fixedly connected with the foundation transverse bar 401, the foundation bar 401 is used for installing a precast column 1 in the assembly type building process, the foundation bar 401 is inserted into a pouring sleeve 5 connected with the precast column 1, after the foundation bar 401 is fixedly connected, the construction bottom plate 409 is poured, an anti-floating anchor rod structure 41 with the length of 6-9 m is arranged in a building foundation 4 of the fabricated building, so that the purpose of effective anti-floating can be achieved, meanwhile, the prefabricated column 1 and the anti-floating foundation are connected into an integral structure, and the structural stability and the building quality of the fabricated building are improved.
Examples
The present embodiment shows an installation construction method of an assembled building structure, which adopts the installation construction of a building foundation with an anti-floating foundation as in embodiment 2, and the assembled building structure adopts the installation of a building prefabricated component system as in embodiment 1, including the anti-floating foundation construction, the construction of a prefabricated column 1, the construction of a prefabricated floor slab 3, the construction of a prefabricated beam slab 2, and the like, as shown in fig. 1 to 21, specifically comprising the following construction steps:
step A, constructing a building foundation 4, comprising an anti-floating foundation, and arranging foundation steel bars 401 on the top of the anti-floating foundation;
Step B, installing a bottom precast column 1 on a building foundation 4, and inserting a foundation steel bar 401 on the building foundation 4 into a pouring sleeve 5 of a precast column tail 102;
Step C, fixing the prefabricated column 1 at the bottom layer by adopting a fixing part 109;
Step D, pouring a foundation pouring section 10 between the bottom precast column 1 and the building foundation 4;
E, installing a layer of structure on the head 101 of the prefabricated column of the bottom layer, wherein the structure comprises the prefabricated column 1 of the upper layer, a prefabricated floor slab 3 and a prefabricated beam slab 2, when the prefabricated column 1 of the upper layer is installed, inserting column ribs 103 on the head 101 of the prefabricated column of the bottom layer into a pouring sleeve 5 connected with the tail 102 of the prefabricated column of the upper layer 1, wherein the length of the column ribs 103 of the head 101 of the prefabricated column is longer than the depth of the pouring sleeve 5, so that a first pouring section 6 is formed between the end part of the head 101 of the prefabricated column of the bottom layer and the end part of the tail 102 of the prefabricated column of the upper layer 1, installing the prefabricated floor slab 3 and the prefabricated beam slab 2, forming a second pouring section 7 between the prefabricated floor slab 3 and the prefabricated beam slab 2, and connecting the two ends of the prefabricated beam slab 2 in a lap joint mode on the prefabricated column 1 through the first pouring section 6;
Step F, pouring concrete of the first pouring section 6 and the pouring sleeve 5 through the grouting holes 105, and simultaneously pouring the second pouring section 7, and binding upper layer ribs 317 before pouring the second pouring section 7;
And G, repeatedly installing the prefabricated column 1, the prefabricated beam slab 2 and the prefabricated floor slab 3 on the previous layer according to the construction contents of the step E and the step F to form a complete assembled building structure.
The prefabricated column 1 is used as a main bearing component of an assembled building, bears main load of an upper structure, is safe in construction and safe in later operation of the whole building structure, ensures the structural stability and the integrity of the prefabricated column 1, pre-buried column ribs 103 in the prefabricated column 1 can ensure the structural strength of the prefabricated column 1, meanwhile, casting sleeves 5 are arranged at the tail parts of the prefabricated columns, the column ribs 103 of the head parts 101 of the prefabricated columns are inserted into the casting sleeves 5 connected with the tail parts 102 of the prefabricated columns of the upper layer, and casting concrete is arranged in grouting holes 105 formed in the tail parts 102 of the prefabricated columns, so that the prefabricated columns 1 of the upper layer and the lower layer are firmly connected, meanwhile, the casting sleeves 5 are arranged, the prefabricated columns 5 of the upper layer can be accurately sleeved on the column ribs 103 of the head parts 101 of the prefabricated columns of the lower layer, the existing assembled building structure is positioned, the problem that the connection is inconvenient in assembly and installation is solved, and the length of the column ribs 103 of the head parts 101 of the prefabricated columns is larger than the depth of the casting sleeves 5, so that the end parts 101 of the prefabricated columns of the lower layer and the prefabricated columns 102 of the prefabricated columns 1 form a first casting section 6, and the two layers of prefabricated columns 1 are firmly connected through the casting holes.
As a preferred embodiment, when grouting is performed through the grouting holes 105, grouting is performed simultaneously through all grouting holes 105 concentrated on two adjacent sides of the prefabricated column tail 102, so that grouting is convenient to perform in the pouring sleeve 5, grouting efficiency can be improved, and grouting pressure of each pouring sleeve 5 is ensured to be the same.
The construction process of installing the prefabricated columns comprises the steps of (1) hoisting the prefabricated columns one by one along one direction (such as the transverse axis direction or the longitudinal axis direction) according to the integral structure of the building foundation, carrying out layer-by-layer sectional running water, and hoisting the prefabricated columns on one axis after the prefabricated columns on the axis direction are hoisted, wherein the repeated operation can be reduced and the construction efficiency can be improved by adopting the mode; the method comprises the steps of (1) cleaning sundries at the installation position of a precast column, removing loose concrete, checking the axis of the precast column, ensuring that the axis of the precast column is perpendicular to a building foundation surface, (3) checking the precast column to be pre-hung, checking the model, the structure size, the position of a buried part and the like of the precast column, preventing the precast column from being misplaced or reworked, (4) hoisting the precast column, hoisting the precast column by using a hoisting tool, hoisting a precast column lifting lug 104 by using a rubber tire to protect the precast column when the precast column is required to be turned over, slowly lifting the precast column to adjust the precast column from a flat state to a vertical state, completing the turning operation of the precast column, (5) positioning the precast column, stopping when the precast column is hoisted 500mm away, removing a skid and a supporting leg for protecting the precast column, cleaning mud at the column head part, hoisting the precast column to the position to be installed, positioning by using a foundation steel bar, adding a diagonal brace 1091 of not less than 2 groups of fixing parts 109 to temporarily fix the precast column 1 after hoisting the precast column in place, (6) correcting the verticality of the precast column, using a wire plate, erecting a theodolite in two directions perpendicular to each other, aligning the upper axis of the precast column with the upper vertical plane and the upper vertical plane of the precast column, and the upper vertical plane when the axis of the precast column is aligned with the upper vertical plane of the two vertical plane of the precast column, and the upper vertical plane is found, the method comprises the steps of aligning the axes on the third surface, aligning the axes or the central lines on the three surfaces of the post with the positioning axes, carrying out foundation pouring section grouting after ensuring the position and the perpendicularity of the axes, installing a correcting and positioning middle precast column, taking the central line of a slightly larger surface of the precast column as a standard, supporting four sides after being in place, respectively supporting two theodolites on the axes of two adjacent cylindrical surfaces, aligning the axes of the column shafts, correcting the vertical deviation, checking the axes on the other two surfaces after the correction of the two theodolites from two directions, firmly supporting four sides, and carrying out foundation pouring section grouting, installing, correcting and positioning side columns and corner columns, simultaneously correcting the axes on the three surfaces of the precast column and the fourth surface, ensuring that the precast column does not generate torsion, dislocation and offset, positioning the precast column before unhooking, and preventing the precast column from tipping.
The grouting construction process of the precast column comprises (1) plugging a base, sealing a space between the tail 102 of the precast column and a bottom plate 409 to form a sealed space, ensuring that grouting materials are filled into a pouring hole 108 and a pouring sleeve 5 under pressure and reach the compactness required by design, (2) stopping grouting after grouting the grouting holes 105, the grouting holes 106 and the exhaust holes 107, and maintaining the grouting pressure for 30-45s, keeping the grouting materials compact, (3) grouting the position of a first pouring section 6, and grouting other pouring sections (including a second pouring section 7 and a third pouring section 8) formed by the precast beam plate 2 and the precast floor slab 3, wherein the same requirements are also met.
When installing precast floor slab 3 in step E, adopt the template support frame to set up, adopt the steel pipe + jacking + square steel pipe fossil fragments's supporting means, when adjacent two precast floor slabs splice, the horizontal muscle of beam slab of precast floor slab one end inserts to be installed in adjacent precast floor slab pours the sleeve, precast floor slab both sides overlap joint is on precast beam slab, precast floor slab tip beam slab horizontal muscle's length is greater than the degree of depth of inserting and pouring in the sleeve for form the third section of pouring in situ between two adjacent precast floor slab tip, through the cast in situ concrete of follow-up, further guarantee firm in connection between two adjacent precast floor slabs. In the construction process, the precast floor slab is lifted, installed and subjected to position correction, then the precast floor slab gluten is bound, the hydropower concealed pipe is embedded, the precast floor slab is reset and corrected, the second cast-in-place section concrete, the third cast-in-place section concrete and the precast floor slab upper floor slab spliced by the precast beam slab are cast and vibrated to form a superposed floor slab, the bottom joint of the precast floor slab is treated, and finally maintenance is carried out after casting is completed.
The hoisting construction operation main points of the prefabricated floor slab include:
(1) Setting up a supporting frame, adopting a fastening type phi 48 multiplied by 3.2 steel pipe hall supporting frame as a material, adopting phi 48 multiplied by 3.6 steel pipes as main keels of a plate surface, and adopting 50 multiplied by 50mm square steel pipes as secondary keels;
(2) The secondary joists are arranged in the direction perpendicular to the splice joint of the prefabricated floor slab and the prefabricated beam slab, the distance between the vertical rods of the formwork support is proper, the distance between the vertical rods is about 1 meter, the bottoms of the vertical rods are provided with scaffold boards, a floor sweeping rod is arranged 20cm away from the ground, the step distance of the horizontal rods is 1.5 meters, the horizontal rods are lengthened by adopting butt-joint fasteners, the connecting fasteners of the adjacent horizontal rods are staggered, the situation that the connecting fasteners appear in the same longitudinal (transverse) distance is avoided, the splice joint of all the prefabricated floor slab is provided with a foam polyethylene strip gap, and the crack-resistant mortar composite grid cloth is used for bottom plate gap filling treatment in the later period;
(3) A sponge strip is stuck on the opening of the prefabricated floor slab peripheral support template to prevent slurry leakage, and a double-sided adhesive tape is stuck at different positions at the junction of the prefabricated floor slab and the cast-in-place building section (comprising a second cast-in-place section and a third cast-in-place section) to prevent slurry leakage;
(4) Performing the deviation of the elevation of the upper opening of the precast floor slab support and the precast beam slab according to the elevation of the upper surface of the template bottom die, wherein the allowable deviation of the elevation is within +/-5 mm;
(5) And checking the elevation of the top surfaces of the support frame and the precast beam plate by adopting a laser leveling instrument, when the elevation of the support frame does not meet the requirements, adjusting the adjustable jacking of the support frame to enable the adjustable jacking to meet the requirements, and when the elevation of the upper opening of the precast beam plate does not meet the requirements, checking whether the elevation of the beam bottom of the precast beam plate meets the requirements or not, and if not, adjusting the elevation to meet the requirements.
As one of the preferred embodiments, in the step E, when two adjacent precast beam plates are spliced, beam plate reinforcing steel bars at one end of each precast beam plate are inserted into and installed in adjacent precast beam plate casting sleeves, the precast beam plates can be lengthened through cast-in-place concrete, when the two adjacent precast beam plates are respectively arranged at two sides of a precast column, a first cast-in-place section is formed between the end parts of the two precast beam plates, and a second cast-in-place section is formed after the two precast beam plates are spliced with a precast floor slab and used for connecting cast concrete, so that an assembled building structure is formed.
The installation operation key points of the prefabricated beam slab comprise (1) the prefabricated beam slab with the span more than or equal to 4m is arched by 0.2 percent by matching with binding of upper gluten 317, the deflection is prevented from being overlarge, a locking rod is used for tightening an upper opening of a beam template for pouring a beam slab surface layer, the upper opening is prevented from deforming, (2) all prefabricated Liang Banfeng which is more than or equal to 2mm are sealed by adhesive tape paper, the prefabricated beam slab template is paved and arranged from two ends of the prefabricated beam slab to the middle, a caulking is arranged in the middle, a cleaning opening is arranged at the end part, 3, a batten at the bottom of a beam side template with the beam height more than or equal to 300 is not required to be provided with a nine-ply board, a steel pipe roof is fixed by square lumber, and the batten is clamped, and if the girder with the beam height less than 300 is provided with the template batten, the shear strength must be met, and the extrusion and the collapse during the concrete pouring is avoided.
When pouring the foundation pouring section 10, the first pouring section 6, the second pouring section 7 and the third pouring section 8, firstly measuring and paying off, paying off the positions of all prefabricated components and the position of a 30cm cast-in-place area in the building prefabricated component system, and pasting double-sided adhesive tapes at the slab joints among the prefabricated components to prevent slurry leakage.
When the precast floor slab and the precast beam slab are hoisted through the floor slab hoisting points 9, four floor slab hoisting points 9 are arranged when the precast floor slab 3 is hoisted, a rectangular frame hoisting frame is adopted for hoisting, a hoisting steel rope or a rope chain adopts a special rope chain and 4 closed lifting hooks, the length of a single rope chain is 3m, the hoisting point is at a position between 1/4 and 1/5 of the length of the whole slab from two ends of the precast slab, and the 4 floor slab hoisting points 9 are evenly stressed for hoisting, so that stable hoisting of a component is ensured.
As a preferred embodiment, in the step a, when constructing the anti-floating foundation, as shown in fig. 20 to 21, the construction steps are as follows:
Step A1, drilling an anchor hole 402 according to the length of the anti-floating anchor 41;
a2, fixing a plurality of anchor bars 403 by adopting a fixing pipe 404, and arranging positioning stirrups 405 on the plurality of anchor bars 403 to form an anti-floating anchor rod 41, wherein the positioning stirrups 405 can ensure that the anchor bars 403 are positioned at the middle part of an anchor hole 402, so that the problem that the anti-floating effect of the anti-floating anchor rod 41 is affected due to offset and the like is avoided;
A3, installing the anti-floating anchor 41 in the anchor hole 402 in a descending mode, and pouring anchor rod mortar;
A4, constructing a foundation cushion layer 406, and constructing a waterproof structure at the position of the anti-floating anchor rod 41 penetrating through the foundation cushion layer 406, wherein the waterproof structure comprises an expansion water stop ring 407 sleeved on the outer side of the anti-floating anchor rod 41 and a sealing paste layer 408 (polysulfide sealing paste, polyurethane sealing paste and the like) coated on the expansion water stop ring 407, the expansion water stop ring 407 can expand when meeting water, the purpose of effectively stopping water is achieved, and meanwhile, the outer side of the expansion water stop ring is coated with the sealing paste layer 408, so that a double water stopping effect is formed;
A5, constructing a top reinforcing steel bar of the anti-floating anchor 41, wherein the top of an anchor bar 403 is bent into an L shape, a foundation transverse bar 410 is connected to the anchor bar 403, a foundation reinforcing steel bar 401 is fixedly connected to the foundation transverse bar 410, and the foundation reinforcing steel bar 401 is inserted into a pouring sleeve 5 connected to a prefabricated column 1 when the prefabricated column 1 is installed in the subsequent process;
And step A6, pouring the bottom plate 409.
Through arranging the anti-floating anchor rod with the length of 6-9 m in the building foundation of the assembled building, the aim of effective anti-floating can be achieved, and meanwhile, the prefabricated column and the anti-floating foundation are connected into an integral structure, so that the structural stability and the building quality of the assembled building are improved.
The method for installing and constructing the assembled building structure of the embodiment further comprises construction monitoring, wherein the construction monitoring comprises a supporting bracket and hoisting machinery, the supporting bracket monitoring comprises bracket displacement monitoring and bracket settlement monitoring, and the hoisting machinery monitoring comprises offset monitoring.
By carrying out construction monitoring on the assembly building structure in the installation and construction process, the dynamic conditions of the bracket and the template support can be timely found, and when the deformation values of sinking, loosening, deformation and horizontal displacement are found to exceed the allowable values, reinforcement treatment is timely carried out.
The specific monitoring method for construction monitoring comprises the following steps:
(1) Monitoring project, monitoring method, precision requirement and measuring point arrangement
| Monitoring items | Monitoring instrument | Monitoring accuracy | Station arrangement |
| Support displacement | Total station | 1.0mm | The distance is 10m, not less than 3 points |
| Support sedimentation | Level gauge | 1.0mm | Spacing of 10m, 3 points |
| Hoisting machinery deflection | Total station | 1.0mm | One measurement at 1 hour intervals |
The observation points adopt red paint coated on precast columns, precast beam plates and steel pipe support frames at the adjacent edge positions as monitoring marks, monitoring points are arranged below some precast beam plates with larger loads, and real-time monitoring is carried out on the support system in the concrete pouring process;
(2) Monitoring the early warning value, the allowable value
| Monitoring items | Early warning value | Allowed value |
| Support displacement | 4mm | 5mm |
| Support sedimentation | 4mm | 5mm |
| Hoisting machinery deflection | 4mm | 5mm |
(3) Monitoring measures
Monitoring in the process of installing the prefabricated column and pouring the cast-in-place section, wherein the prefabricated column installation and the cast-in-place section of the above parts are poured in the daytime, and plane displacement deformation monitoring and sedimentation monitoring are simultaneously carried out during monitoring, specifically:
In the process of installing the prefabricated column and constructing the cast-in-place section, carrying out real-time monitoring on the supporting conditions of the bracket and the template, and suspending operation and carrying out reinforcement treatment when the deformation values of sinking, loosening, deformation and horizontal displacement reach the allowable values in the table;
(4) And visually monitoring whether the lifting appliance, the lifting rope and the lifting ring are worn and stable or not, and making a monitoring time record, and checking every 2 hours.
The foregoing is a detailed description of specific embodiments of the invention and is not intended to be limiting of the invention. Various alternatives, modifications and improvements will readily occur to those skilled in the relevant art without departing from the spirit and scope of the invention.
Claims (10)
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| CN202421741448.4U CN223151330U (en) | 2024-07-23 | 2024-07-23 | Building prefabricated component system and assembled building |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202421741448.4U CN223151330U (en) | 2024-07-23 | 2024-07-23 | Building prefabricated component system and assembled building |
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