CN109537810B - Manufacturing method of prefabricated column and assembling method of column beam - Google Patents
Manufacturing method of prefabricated column and assembling method of column beam Download PDFInfo
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- CN109537810B CN109537810B CN201910042574.8A CN201910042574A CN109537810B CN 109537810 B CN109537810 B CN 109537810B CN 201910042574 A CN201910042574 A CN 201910042574A CN 109537810 B CN109537810 B CN 109537810B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
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- Civil Engineering (AREA)
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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention is suitable for the technical field of building construction, and provides a manufacturing method of a prefabricated column and an assembling method of a column beam. The steel structure node in the invention is reliable in stress and convenient to produce and manufacture; the prefabricated column with the steel structure node is simple to store and transport, simple and convenient to operate in the field and the installation process of the steel beam, free of formwork in the field, simple in support, free of operation space limitation, dry-type construction, easy to control in installation precision, small in later-stage anticorrosion and fireproof treatment area, low in whole life cycle maintenance cost, capable of fully embodying the advantages of the fabricated building, improving construction efficiency and construction quality and reducing waste and construction waste.
Description
Technical Field
The invention belongs to the technical field of building construction, and particularly relates to a manufacturing method of a prefabricated column and an assembling method of a column beam.
Background
Currently, beam-column joints mainly have the following connection forms:
one of them is a beam column node in a prefabricated assembly type concrete structure, and a post-cast section is generally arranged in a node area to realize the connection of a prefabricated reinforced concrete column and a concrete beam. Although the stress of the node is reliable, the problems that the core area of the node has more steel bars, mutual conflict is easy to occur, the operation space is narrow, the difficulty in hoisting the concrete beam is high, a formwork is required for field installation, the installation efficiency is not high and the like exist.
The other type is a prefabricated reinforced concrete column and steel beam connection node, and a steel pipe node formed by surrounding all steel plates is usually adopted in a beam column node area to be connected with a section steel beam. The node is characterized in that after the prefabricated column is installed in place on site, a steel pipe node is installed on the top of the column, and concrete is poured into the steel pipe node to form integral work together with the prefabricated column. The field installation efficiency of the operation mode is low, the installation precision is not easy to control, and the condition that the operation mode is not spliced with the steel beam usually occurs. The steel beam-precast concrete column joint needs to be subjected to anticorrosion and fireproof treatment under the normal use condition, the treatment area is large, and the maintenance cost of the whole life cycle is high.
And the beam column joint connection mode is that steel ribs are pre-embedded in the precast concrete column, and a section of steel beam is picked out around the steel ribs and is spliced with the steel beam on site. The steel beam is selected out, so that the conditions of inconvenient factory manufacturing, difficult transportation, complex field installation temporary support and the like exist, the construction cost is increased, and the construction efficiency is delayed.
Disclosure of Invention
The invention aims to provide a method for manufacturing a prefabricated column and a method for assembling a column beam, and aims to solve the problems that the prefabricated column in a beam-column connection mode in the prior art is inconvenient to manufacture, difficult to store and transport, difficult to operate on a column-beam installation site, uncontrollable in installation precision and high in maintenance cost in a full life cycle.
The invention is realized in such a way that a steel structure node comprises side plates positioned on the side surfaces, a bottom plate positioned at the bottom, a top plate positioned at the top, a plurality of tension bar pieces and a plurality of stirrups; a connecting part extends from the side surface of the top plate, the connecting part of the top plate is fixedly connected with the inner side surface of the side plate, a connecting part extends from the side surface of the bottom plate, and the connecting part of the bottom plate is fixedly connected with the inner side surface of the side plate; a plurality of preformed holes are formed in the side plates, and the two opposite side plates are connected through the pull rod piece; the plurality of pairs of pull rod pieces are sequentially arranged in a vertically staggered manner, and the stirrups are laid between the vertically adjacent pairs of pull rod pieces; the side plates are provided with a plurality of protruding parts protruding out of the outer side surfaces of the side plates, and free ends of the protruding parts are provided with threads.
Furthermore, the top surface of roof is provided with protruding structure, the bottom surface of bottom plate is provided with protruding structure.
Furthermore, a high-strength screw rod is connected between the bottom plate and the top plate, and the top end of the high-strength screw rod extends out of the top plate to form the protruding structure.
Further, the protruding structures are studs, and the width of the top ends of the studs is larger than that of the bottom ends of the studs; the width of the connecting part of the top plate is smaller than that of the side plate; the width of the connecting part of the bottom plate is smaller than that of the side plate.
Furthermore, a plurality of pegs are fixed on the inner side surface of the side plate.
Furthermore, the plurality of protruding parts are formed by extending the end parts of the pair of pull rod pieces out of the outer side face of the side plate or formed by a plurality of high-strength bolts which are installed on the side plate in a threaded connection mode.
In order to solve the technical problems, the invention also provides a prefabricated column which comprises a concrete main body, a reinforcement cage and the steel structure node;
the steel structure node is embedded in the upper end part of the concrete main body, and the protruding part protrudes out of the outer side surface of the concrete main body;
the reinforcement cage comprises a column inner stirrup and a vertically arranged reinforcement, and the column inner stirrup is connected with the reinforcement; the top ends of the reinforcing steel bars extend out of the top of the concrete main body and are staggered with the top plate;
the stirrups are fixedly connected with the reinforcing steel bars.
Further, the width of the side plate is smaller than that of the concrete body.
The invention also provides a manufacturing method of the prefabricated column for solving the technical problems, which at least comprises the following steps:
manufacturing a steel structure node:
s11, providing or preparing the side plates, the top plate, the bottom plate, the stirrups, the diagonal members and the convex parts;
s12, taking a plurality of the pair of pull rod pieces to sequentially connect the four side plates in a pairwise opposite manner; two groups of opposite pull rod pieces which are adjacent up and down are placed in a crossed mode, at least one stirrup is laid after one group of opposite pull rod pieces are placed, and the other group of opposite pull rod pieces are placed in a crossed mode;
s13, screwing the pair of pull rods, and adjusting the position of each side plate as required;
s14, welding each side surface of the top plate with the tops of the four side plates respectively, and welding each side surface of the bottom plate with the bottoms of the four side plates respectively;
s15, mounting the protruding parts on the side plates according to requirements, and thus finishing the manufacture of the steel structure node;
binding a reinforcement cage:
s21, providing or preparing a sleeve, a steel bar positioned in the sleeve, a tool positioning tool assembly and a hoop in the column; the tool positioning tool assembly comprises a sleeve tool positioning tool close to the sleeve and a steel bar outlet end tool positioning tool close to the steel bar outlet end;
s22, sequentially penetrating the sleeve and the steel bar into the tool positioning tool assemblies respectively positioned at the two ends, and checking whether the requirements are met;
s23, sleeving the hooping in the column at the corresponding position as required;
s24, adjusting the sleeve and the steel bar, positioning the sleeve and the steel bar by using a sleeve tool positioning tool, and ensuring the direction of the sleeve entering and exiting the grout outlet and the length of the steel bar;
s25, adjusting the steel bar output end, and positioning the steel bar output end by using a steel bar output end tool positioning tool to ensure the length and position of the steel bar output end;
s26, binding stirrups in the column as required, and finishing the manufacturing of the whole reinforcement cage;
assembling the steel structure nodes and the steel bar cage:
s31, conveying the reinforcement cage and the tool positioning tool assemblies at the two ends to a die table together;
s32, disassembling the steel bar outlet end tool positioning tool, and sleeving the steel structure node into the bound steel bar cage;
s33, installing the steel bar output end tool positioning tool assembly back according to the requirement, and locking;
s34, binding the stirrups in the steel structure nodes and the column steel bars firmly according to requirements, and adjusting the positions of the steel nodes; the assembly operation of the two is completed;
a step of installing a die:
s41, mounting a left side die and a right side die;
s42, removing the tool positioning tool assemblies at the two ends, installing side forms at the two ends, and mutually locking the steel structure node and the die;
s43, limiting and fixing the sleeve end, and detecting whether the sleeve and the steel bar in the sleeve meet the requirements or not in the fixing process;
s44, sealing the rib outlet end;
s45, positioning and checking the steel bar to form a rib;
s46, installing a counter-pulling piece to finish the die installation;
pouring concrete:
s51, carrying out concrete pouring, vibrating, surface repairing and maintenance to obtain a prefabricated column;
an auxiliary tool dismantling step:
s61, after the prefabricated column is kept stand and cured, firstly, dismantling the connecting parts and the pulling pieces between the moulds;
s62, removing the left side die and the right side die;
s63, removing the tool positioning tool components at the two ends;
and S64, removing the side molds at the two ends, and removing the rest parts of the molds to finish the manufacture of the prefabricated column.
The invention also provides an assembly method of a column and a beam, in order to solve the technical problem, the column is the prefabricated column, the beam is a steel beam, and the method comprises the following steps:
s71, transporting the prefabricated column to a construction site;
s72, firstly, positioning and marking out on the floor surface with the installation condition, and positioning the concrete position and the positioning requirement of the prefabricated column;
s73, positioning the installation elevation of the prefabricated column at the position of the prefabricated column on the floor surface, and placing a cushion block according to the requirement;
s74, installing a positioning clamp piece or a seven-character code at the lower end of the prefabricated column and limiting the side line of the prefabricated column;
s75, plugging four sides of the prefabricated column, and setting the grout according to requirements;
s76, hoisting the prefabricated column according to the requirement;
s77, when the column to be prefabricated is close to the floor slab, aligning a positioning buckle at the lower end of the prefabricated column with a pre-installed buckle or a seven-character code, and slowly descending to ensure that the bottom of the prefabricated column is in place;
s78, mounting a column diagonal brace, and primarily fixing the prefabricated column;
s79, finely adjusting the levelness and the verticality of the prefabricated column, and fixing the prefabricated column after meeting the requirements;
s80, dismantling and installing the hanger;
s81, grouting and maintaining according to requirements; namely, the prefabricated column is installed;
s82, after all the steel structure nodes meet the requirements, mounting bottom connecting angle steel through a convex part at the top of the steel structure node;
s83, hoisting the steel beam according to the requirement, placing the steel beam on the bottom connecting angle steel, and adjusting the steel beam to meet the installation requirement;
s84, mounting middle connecting angle steel through a convex part at the middle position of the steel structure node as required, and connecting and locking;
s85, dismounting and mounting the lifting hook;
and S86, connecting the upper flange of the steel beam with the upper part of the steel structure node according to requirements, and connecting the lower flange of the steel beam with the bottom of the steel structure node, namely completing the assembly of the prefabricated column and the steel beam.
Compared with the prior art, the invention has the beneficial effects that: the steel structure node of the invention is reliable in stress and convenient to produce and manufacture; the prefabricated column with the steel structure node is simple to store and transport, simple and convenient to operate in the field and the installation process of the steel beam, free of formwork in the field, simple in support, free of operation space limitation, dry-type construction, easy to control in installation precision, small in later-stage anticorrosion and fireproof treatment area, low in whole life cycle maintenance cost, capable of fully embodying the advantages of the fabricated building, improving construction efficiency and construction quality and reducing waste and construction waste.
Drawings
Fig. 1 is a schematic perspective view of a steel structure node according to a first embodiment of the present invention;
FIG. 2 is a perspective view of the steel structure joint shown in FIG. 1 from another perspective;
FIG. 3 is a schematic perspective view of a prefabricated column according to an embodiment of the present invention;
FIG. 4 is a schematic perspective view of a steel cage according to an embodiment of the present invention;
fig. 5 to 9 are schematic views illustrating a manufacturing process of the steel structure node according to the first embodiment of the present invention;
fig. 10 to 12 are schematic views illustrating a reinforcement cage binding process according to a first embodiment of the present invention;
fig. 13 to 15 are schematic views illustrating an assembly process of a steel structure node and a reinforcement cage according to a first embodiment of the present invention;
fig. 16 to 20 are schematic views illustrating an installation process of a mold for fabricating a precast column according to a first embodiment of the present invention;
FIG. 21 is a schematic view of a precast column according to a first embodiment of the present invention after concrete is poured;
FIG. 22 is a schematic view of a preformed column provided in accordance with an embodiment of the present invention with all of the molds removed after forming;
FIG. 23 is a perspective view of an assembled precast column and steel beam according to an embodiment of the present invention;
fig. 24 is a schematic perspective view of a steel structure node according to a second embodiment of the present invention;
FIG. 25 is a perspective view of the steel structure joint shown in FIG. 24 from another perspective;
FIG. 26 is a schematic perspective view of a prefabricated column according to a second embodiment of the present invention;
fig. 27 is a perspective view of the prefabricated column and the steel beam according to the second embodiment of the present invention after being assembled.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The first embodiment is as follows:
referring to fig. 1 and 2, a steel structure node provided in this embodiment is shown, which includes a side plate 1 located on a side surface, a top plate 2a located on a top portion, a bottom plate 2b located on a bottom portion, a plurality of pairs of tie members 3, a plurality of stirrups 4, and a plurality of protruding members 5.
A plurality of preformed holes 11 are formed in the side plates 1, and the two opposite side plates 1 are connected through the pull rod pieces 3; the plurality of pairs of pull rod pieces 3 are sequentially arranged in a vertically staggered mode, and stirrups 4 are laid between the vertically adjacent pairs of pull rod pieces 3. Specifically, the end of the opposite pull rod 3 of the embodiment does not penetrate through the outer side surface of the side plate 1.
A protruding part 5 is mounted on the outer side of the side plate 1, said protruding part 5 having a screw thread at its free end. The protruding member 5 of the present embodiment is a high-strength bolt threadedly mounted on the side plate 1.
The top surface of the top plate 2a is provided with a convex structure 7, and the bottom surface of the bottom plate 2b is also provided with a convex structure 7; in the embodiment, the convex structures 7 are formed by the studs, and the widths of the top ends of the studs are larger than those of the bottom ends of the studs; therefore, after the floor slab is poured, the stud can form an embedded and buckled structure with the floor slab, and the connection stability is effectively enhanced.
Specifically, the width of the connecting portion of the top plate 2a and the width of the connecting portion of the bottom plate 2b are both smaller than the width of the side plate 1, so that vertical steel bars can pass through the side plates conveniently.
The inner side surface of the side plate 1 is fixed with a plurality of studs 8 which can form an embedded and buckled structure with a subsequent concrete pouring main body.
Referring to fig. 3 and 4, the embodiment further provides a prefabricated column 100, which includes the steel structure node 10, the concrete body 20, and the reinforcement cage 30.
After the concrete main body 20 is poured, the concrete main body and the steel structure node 10 are integrated into a whole, at the moment, the steel structure node 10 is embedded at the upper end part of the concrete main body 20, and the protruding part 5 protrudes out of the outer side surface of the concrete main body 20 so as to be assembled with a steel beam.
The reinforcement cage 30 includes a plurality of in-column stirrups 31, a plurality of vertically disposed reinforcements 32, and a plurality of sleeves 33, wherein one end of the reinforcement 32 is embedded in the sleeve 33. The column stirrup 31 is connected with a steel bar 32; the top end of the steel bar 32 extends out of the area of the top plate 2a and the bottom plate 2b staggered on the top of the concrete main body 20, and after a floor slab is poured, the top end of the steel bar 32 can be embedded into the floor slab, so that the connection between the prefabricated column and the floor slab is realized.
The stirrups 4 are fixedly connected with the steel bars 32, so that the connection between the steel structure node 10 and the steel bars 32 is realized.
Specifically, the width of curb plate 1 of this embodiment is less than the width of concrete body 20, and the preparation material of curb plate 1 can be saved in this design to, there is the space between the adjacent both sides board 1, the installation of the stirrup 4 of being convenient for and the pouring of concrete.
The method for manufacturing the prefabricated column 100 of the embodiment comprises the following steps:
1. referring to fig. 5 to 9, the steps of manufacturing the steel structure node 10 are as follows:
s11, providing or preparing the side plate 1, the top plate 2a, the bottom plate 2b, the diagonal member 3, the stirrups 4 and the protruding parts 5 according to requirements;
s12, respectively welding a connecting plate 6 on the inner side surface of the top and the inner side surface of the bottom of each side plate 1, and welding the stud 8 on the inner side surface of each side plate 1 according to requirements;
s13, placing the four side plates 1 at proper positions, and connecting the four side plates 1 in a pairwise opposite manner by using the pair of pull rods 3; vertically crossing the adjacent diagonal members 3, laying stirrups 4 after a group of diagonal members 3 are placed, and then placing a group of diagonal members 3 in a crossing manner;
s14, screwing (capable of screwing forward or backward) the pair of pull rod pieces 3, and adjusting the positions of the side plates 1 as required;
s15, welding each side surface of the top plate 2a and each side surface of the bottom plate 2b with the connecting plates 6 on the top and bottom positions of the four side plates 1 respectively;
and S16, mounting the convex parts 5 on the side plates 1 as required to form a stable plate frame, namely finishing the manufacture of the steel structure node 10.
2. Referring to fig. 10 to 12, the reinforcement cage 30 is bound:
s21, providing or preparing a sleeve 33, a steel bar 32 positioned in the sleeve 33, a tool positioning tool assembly and an in-column stirrup 31; wherein, the tooling positioning tool assembly comprises a sleeve tooling positioning tool 41 close to the sleeve 33 and a reinforcing steel bar outlet end tooling positioning tool 42 close to the reinforcing steel bar outlet end. The steel bar 32 is processed according to the requirement, and the total length of the steel bar 32 is controlled to meet the requirement by a repeated point;
s22, sequentially penetrating the sleeve 33 and the steel bar 32 into the tool positioning tool assemblies respectively positioned at the two ends, and checking whether the requirements are met; at this time, since the in-column stirrup 31 is not yet installed, it is not necessary to fix all the sleeves 33 and the reinforcing bars 32;
s23, sleeving the inner hoop 31 at the corresponding position as required;
s24, adjusting the sleeve 33 and the steel bar 32, positioning the sleeve 33 and the steel bar 32 by using a sleeve tool positioning tool 41, and ensuring the direction of the sleeve 33 entering and exiting the grout outlet and the length of the steel bar 32;
s25, adjusting the steel bar 32 to be bar-out, and positioning the steel bar 32 to be bar-out by using a steel bar-out end tool positioning tool 42 to ensure the bar-out length and position of the steel bar 32; locking a steel bar output end tool positioning tool 42 only when the relation between the middle of the steel bar 32 and the in-column stirrup 31 is checked to be qualified;
and S26, binding the inner hoop 31 of the column as required, and finishing the manufacture of the whole reinforcement cage 30.
3. Referring to fig. 13 to 15, the steel structure node 10 and the reinforcement cage 30 are assembled:
s31, conveying the reinforcement cage 30 and the tool positioning tool assemblies at the two ends to the die table 200;
s32, disassembling the steel bar outlet end tool positioning tool 42, and sleeving the steel structure node 10 into the bound steel bar cage 30;
s33, installing the steel bar outlet end tool positioning tool 42 back according to requirements, and locking;
s34, binding the stirrups 4 in the steel structure node 10 and the column reinforcements 32 firmly according to requirements, and adjusting the position of the steel structure node 10; the assembly operation of the two is completed.
4. Referring to fig. 16 to 20, the die mounting step:
s41, installing the left side die 201 and the right side die 202;
s42, removing the tool positioning tool assemblies at the two ends, installing the side forms 203 at the two ends, and mutually locking the steel structure node 10 and the die;
s43, limiting and fixing the end of the sleeve 33, and detecting whether the sleeve 33 and the steel bar 32 meet the requirements or not in the fixing process;
s44, sealing the rib outlet end;
s45, positioning and checking the steel bar 32 to be out of the steel bar, and protecting and fixing the steel bar;
and S46, installing the counter-pulling piece 204 and other accessories to finish the die installation.
5. Referring to fig. 21, the concrete pouring step:
and S51, performing concrete pouring, vibrating, surface repairing and maintenance to obtain the precast column 100.
6. Referring to fig. 22, the auxiliary tool removing step:
s61, after the prefabricated column is kept stand and cured, firstly, detaching the connecting parts and the pulling pieces 204 between the moulds;
s62, removing the left side die 201 and the right side die 202;
s63, removing the tool positioning tool assembly at the end part;
and S64, removing the side molds 203 at the two ends, and removing the rest parts of the molds to finish the manufacture of the precast column 100.
Referring to fig. 23, the present embodiment further provides an assembling method of a column and a beam, wherein the column is the prefabricated column 100, and the beam is a steel beam 300, the assembling method specifically includes the following steps:
s71, transporting the prefabricated column 100 to a construction site; during transportation and installation, the prefabricated columns 100 produced by using the steel structure node of the embodiment are regular, so that stacking and transportation are simple and convenient, the prefabricated columns 100 are transported similarly to other prefabricated components, laid horizontally, skids are placed according to requirements, the prefabricated columns are stacked, protected and fixed; then, transporting according to the transportation standard of the standard prefabricated part;
s72, firstly, positioning and marking on the floor surface with the installation condition, and positioning the concrete position and the positioning requirement of the precast column 100;
s73, positioning the installation elevation of the prefabricated column 100 at the position of the prefabricated column 100 on the floor surface, and placing a cushion block according to the requirement;
s74, installing a positioning clamp piece or a seven-character code at the lower end of the prefabricated column 100, and limiting the side line of the prefabricated column 100;
s75, plugging four sides of the prefabricated column 100, and setting grout as required (generally, the middle is high, the four sides are low, and the grout needs to be applied) to ensure that no grout is leaked;
s76, hoisting the prefabricated column 100 as required;
s77, when the column 100 to be prefabricated is close to a floor slab (the distance is about 500 mm), aligning a positioning buckle at the lower end of the prefabricated column 100 with a pre-installed buckle or a seven-character code, and slowly descending to ensure that the bottom of the prefabricated column 100 is in place;
s78, mounting a column diagonal brace, and primarily fixing the prefabricated column 100;
s79, finely adjusting the levelness and the verticality of the prefabricated column 100, and fixing the prefabricated column 100 after the requirements are met;
s80, dismantling and installing the hanger;
s81, grouting and maintaining according to requirements; namely, the prefabricated column 100 is installed;
s82, after all the requirements are met, installing bottom connecting angle steel 400 through the convex part 5 at the top of the steel structure node 10;
s83, hoisting the steel beam 300 according to the requirement, placing the steel beam on the bottom connecting angle steel 400, and adjusting the steel beam 300 to meet the installation requirement;
s84, mounting middle connecting angle steel 500 through the convex part 5 in the middle of the steel structure node 10, and connecting and locking the connecting angle steel as required;
s85, dismounting and mounting the lifting hook;
and S86, welding the upper flange of the steel beam 300 with the upper part of the steel structure node 10 according to requirements, and welding the lower flange of the steel beam 300 with the bottom of the steel structure node 10, namely finishing the assembly of the precast column 100 and the steel beam 300.
The steel structure node 10 of the embodiment is reliable in stress and convenient to produce and manufacture; the prefabricated column 100 with the steel structure node 10 is simple to store and transport, simple and convenient to operate in site and the installation process of the steel beam 300, free of formwork in site, simple in support, free of operation space limitation, dry-type construction, easy to control in installation precision, small in later-stage anticorrosion and fireproof treatment area, low in whole life cycle maintenance cost, fully embodies the advantages of fabricated buildings, improves construction efficiency and construction quality, and reduces waste and construction waste.
Example two:
referring to fig. 24 and 25, the present embodiment provides another steel structure node 10, which includes a side plate 1 at the side, a top plate 2a at the top, a plurality of pairs of tie members 3, a plurality of stirrups 4, and a bottom plate 2 b.
The steel structure node 10 of the present embodiment is the same as the first embodiment except for the following:
the side plate 1 of the embodiment is not additionally provided with the protruding part 5, but the end part of the pull rod piece 3 protrudes out of the outer side surface of the side plate 1 to form a protruding part 5 structure. Meanwhile, no stud is arranged on the inner side surface of the side plate 1.
In this embodiment, a high-strength screw 7a is connected between the bottom plate 2b and the top plate 2a, and a top end of the high-strength screw 7a extends out of the top plate 2a, and a bottom end thereof extends out of the bottom plate 2b, so as to form a protruding structure, that is, a top of the high-strength screw 7a replaces a stud on the top plate in the first embodiment.
Meanwhile, please refer to fig. 26 and 27, the present embodiment further provides a prefabricated column 100 having the steel structure node 10 of the present embodiment and an assembling method of the corresponding column beam.
In step S86 of the method for assembling a pillar beam, the embodiment specifically includes: and connecting the upper flange of the steel beam 300 with the upper part of the steel structure node 10 through a bolt according to requirements, and connecting the lower flange of the steel beam 300 with the bottom of the steel structure node 10 through a bolt, namely completing the assembly of the prefabricated column 100 and the steel beam 300.
In summary, the two steel structure joints 10, the prefabricated columns 100 and the assembling method of the column beam are slightly different in three aspects of production, manufacturing, transportation, installation and construction, and the large direction is that the beam-column joints are simplified to enable the production, transportation and installation to be simpler and more efficient.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (2)
1. A method for manufacturing a prefabricated column comprises the following steps of (1) manufacturing the prefabricated column, wherein the prefabricated column comprises a concrete main body, a reinforcement cage and steel structure nodes; the steel structure node comprises side plates positioned on the side surfaces, a bottom plate positioned at the bottom, a top plate positioned at the top, a plurality of diagonal tension members and a plurality of stirrups; a connecting part extends from the side surface of the top plate, the connecting part of the top plate is fixedly connected with the inner side surfaces of the side plates, and a gap is formed between every two adjacent side plates; a connecting part extends from the side surface of the bottom plate, and the connecting part of the bottom plate is fixedly connected with the inner side surface of the side plate; a plurality of preformed holes are formed in the side plates, and the two opposite side plates are connected with the opposite pull rod piece through the preformed holes; the plurality of pairs of pull rod pieces are sequentially arranged in a vertically staggered manner, and the stirrups are laid between the vertically adjacent pairs of pull rod pieces; a plurality of protruding parts protruding out of the outer side surfaces of the side plates are arranged on the side plates through the preformed holes, and free ends of the protruding parts are provided with threads; the steel structure node is embedded in the upper end part of the concrete main body, and the protruding part protrudes out of the outer side surface of the concrete main body; the reinforcement cage comprises a column inner stirrup and a vertically arranged reinforcement, and the column inner stirrup is connected with the reinforcement; the top ends of the reinforcing steel bars extend out of the top of the concrete main body and are staggered with the top plate; the stirrups in the steel structure nodes are fixedly connected with the steel bars of the steel reinforcement cage; the manufacturing method is characterized by at least comprising the following steps:
manufacturing a steel structure node:
s11, providing or preparing the side plates, the bottom plate, the top plate, the stirrups, the diagonal members and the convex parts;
s12, taking a plurality of the pair of pull rod pieces to sequentially connect the four side plates in a pairwise opposite manner; two groups of opposite pull rod pieces which are adjacent up and down are placed in a crossed mode, the stirrups are laid after one group of opposite pull rod pieces are placed, and the other group of opposite pull rod pieces are placed in a crossed mode;
s13, screwing the pair of pull rods, and adjusting the position of each side plate as required;
s14, welding each side surface of the top plate with the tops of the four side plates respectively, and welding each side surface of the bottom plate with the bottoms of the four side plates respectively;
s15, mounting the protruding parts on the side plates according to requirements, and thus finishing the manufacture of the steel structure node; binding a reinforcement cage:
s21, providing or preparing a sleeve, a steel bar positioned in the sleeve, a tool positioning tool assembly and a hoop in the column; the tool positioning tool assembly comprises a sleeve tool positioning tool close to the sleeve and a steel bar outlet end tool positioning tool close to the steel bar outlet end;
s22, sequentially penetrating the sleeve and the steel bar into the tool positioning tool assemblies respectively positioned at the two ends, and checking whether the requirements are met;
s23, sleeving the hooping in the column at the corresponding position as required;
s24, adjusting the sleeve and the steel bar, positioning the sleeve and the steel bar by using a sleeve tool positioning tool, and ensuring the direction of the sleeve entering and exiting the grout outlet and the length of the steel bar;
s25, adjusting the steel bar output end, and positioning the steel bar output end by using a steel bar output end tool positioning tool to ensure the length and position of the steel bar output end;
s26, binding stirrups in the column as required, and finishing the manufacturing of the whole reinforcement cage;
assembling the steel structure nodes and the steel bar cage:
s31, conveying the reinforcement cage and the tool positioning tool assemblies at the two ends to a die table together;
s32, disassembling the steel bar outlet end tool positioning tool, and sleeving the steel structure node into the bound steel bar cage;
s33, installing the steel bar output end tool positioning tool assembly back according to the requirement, and locking;
s34, binding the stirrups in the steel structure nodes and the column steel bars firmly according to requirements, and adjusting the positions of the steel nodes; the assembly operation of the two is completed;
a step of installing a die:
s41, mounting a left side die and a right side die;
s42, removing the tool positioning tool assemblies at the two ends, installing side forms at the two ends, and mutually locking the steel structure node and the die;
s43, limiting and fixing the sleeve end, and detecting whether the sleeve and the steel bar in the sleeve meet the requirements or not in the fixing process;
s44, sealing the rib outlet end;
s45, positioning and checking the steel bar to form a rib;
s46, installing a counter-pulling piece to finish the die installation;
pouring concrete:
s51, carrying out concrete pouring, vibrating, surface repairing and maintenance to obtain a prefabricated column;
an auxiliary tool dismantling step:
s61, after the prefabricated column is kept stand and cured, firstly, dismantling the connecting parts and the pulling pieces between the moulds;
s62, removing the left side die and the right side die;
s63, removing the tool positioning tool components at the two ends;
and S64, removing the side molds at the two ends, and removing the rest parts of the molds to finish the manufacture of the prefabricated column.
2. A method of assembling a column beam, the column being a prefabricated column according to claim 1, the beam being a steel beam, the method comprising the steps of:
s71, transporting the prefabricated column to a construction site;
s72, firstly, positioning and marking out on the floor surface with the installation condition, and positioning the concrete position and the positioning requirement of the prefabricated column;
s73, positioning the installation elevation of the prefabricated column at the position of the prefabricated column on the floor surface, and placing a cushion block according to the requirement;
s74, installing a positioning clamp piece or a seven-character code at the lower end of the prefabricated column and limiting the side line of the prefabricated column;
s75, plugging four sides of the prefabricated column, and setting the grout according to requirements;
s76, hoisting the prefabricated column according to the requirement;
s77, when the column to be prefabricated is close to the floor slab, aligning a positioning buckle at the lower end of the prefabricated column with a pre-installed buckle or a seven-character code, and slowly descending to ensure that the bottom of the prefabricated column is in place;
s78, mounting a column diagonal brace, and primarily fixing the prefabricated column;
s79, finely adjusting the levelness and the verticality of the prefabricated column, and fixing the prefabricated column after meeting the requirements;
s80, dismantling and installing the hanger;
s81, grouting and maintaining according to requirements; namely, the prefabricated column is installed;
s82, after all the steel structure nodes meet the requirements, mounting bottom connecting angle steel through a convex part at the top of the steel structure node;
s83, hoisting the steel beam according to the requirement, placing the steel beam on the bottom connecting angle steel, and adjusting the steel beam to meet the installation requirement;
s84, mounting middle connecting angle steel through a convex part at the middle position of the steel structure node as required, and connecting and locking;
s85, dismounting and mounting the lifting hook;
and S86, connecting the upper flange of the steel beam with the upper part of the steel structure node according to requirements, and connecting the lower flange of the steel beam with the bottom of the steel structure node, namely completing the assembly of the prefabricated column and the steel beam.
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| CN110778123B (en) * | 2019-11-11 | 2021-08-27 | 福建省福乾建设发展有限公司 | Concrete reinforcement binding construction method |
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| CN114775793A (en) * | 2022-05-14 | 2022-07-22 | 王凤林 | Steel structure frame structure and construction method thereof |
| CN115467515B (en) * | 2022-09-21 | 2023-08-15 | 中建七局安装工程有限公司 | Ultra-high frame column construction structure and ultra-high frame column construction method |
| CN116856554B (en) * | 2023-02-16 | 2024-04-12 | 中交第四公路工程局有限公司 | Supplementary coupling mechanism that consolidates of shaped steel concrete composite structure |
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