CN109537811B - 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 PDF

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Publication number
CN109537811B
CN109537811B CN201910042663.2A CN201910042663A CN109537811B CN 109537811 B CN109537811 B CN 109537811B CN 201910042663 A CN201910042663 A CN 201910042663A CN 109537811 B CN109537811 B CN 109537811B
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China
Prior art keywords
steel
plate
column
prefabricated column
sleeve
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CN201910042663.2A
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CN109537811A (en
Inventor
孙占琦
邱勇
王洪欣
芦静夫
崔燕辉
王庆华
李晓丽
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China Construction Science and Technology Group Co Ltd
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China Construction Science and Technology Co Ltd Shenzhen Branch
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/30Columns; Pillars; Struts
    • E04C3/34Columns; 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00Producing shaped prefabricated articles from the material
    • B28B1/08Producing shaped prefabricated articles from the material by vibrating or jolting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/02Arrangements 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
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38Connections for building structures in general
    • E04B1/58Connections for building structures in general of bar-shaped building elements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14Conveying or assembling building elements

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

Manufacturing method of prefabricated column and assembling method of column beam
Technical Field
The invention belongs to the technical field of building construction, and particularly relates to a steel structure node, a prefabricated column, a manufacturing method of the 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 solve the technical problems of inconvenient production and manufacture of a prefabricated column, difficulty in storage and transportation, difficulty in operation of a column-beam installation site, uncontrollable installation precision and high maintenance cost of a full life cycle in a beam-column connection mode in the prior art.
The invention is realized in such a way that a steel structure node comprises side plates positioned on the side surfaces, a top plate positioned at the top, a plurality of pairs of pull rod pieces and a bottom plate positioned at the bottom; the side surface of the top plate and the side surface of the bottom plate extend out of connecting parts, and the connecting parts of the top plate and the bottom plate are provided with a plurality of through holes along the thickness direction of the connecting parts; the connecting part of the top plate is fixedly connected with the top of the side plate, and the connecting part of the bottom plate is fixedly connected with the bottom of the side plate; the side plates are provided with a plurality of preformed holes along the thickness direction, both ends of the counter pull rod piece are provided with high-strength bolt sleeves, the two opposite side plates are connected through the counter pull rod piece, the high-strength bolt sleeves are embedded in the preformed holes, and threaded holes communicated with the outside are formed in the high-strength bolt sleeves; and stirrups are laid between the pair of pull rod pieces which are adjacent up and down.
Furthermore, the steel structure node also comprises a middle cross plate, the middle cross plate comprises a first longitudinal plate, a second longitudinal plate and a third longitudinal plate, and the second longitudinal plate and the third longitudinal plate are respectively and vertically fixed on two opposite outer side surfaces of the first longitudinal plate; the first longitudinal plate is fixedly connected with the inner side surfaces of the two opposite side plates respectively, and the second longitudinal plate and the third longitudinal plate are fixedly connected with the inner side surfaces of the other two opposite side plates respectively; the top surface of the middle cross plate is fixedly connected with the bottom surface of the top plate, the bottom surface of the middle cross plate is fixedly connected with the top surface of the bottom plate, and the width of two end parts of the middle cross plate is larger than that of the middle area.
Furthermore, a spacing space is reserved between two adjacent side plates.
Further, the tie rod piece is a tie bolt.
Furthermore, a plurality of pegs are arranged on the top surface of the top plate and/or the bottom surface of the bottom plate.
Further, 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.
The invention also provides a prefabricated column for solving the technical problems, which comprises a concrete main body, a reinforcement cage and any one of the steel structure nodes;
the steel structure node is sleeved at the top end of the steel reinforcement cage and embedded at the upper end part of the concrete main body, and the high-strength bolt sleeve is exposed 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 plate, the top plate, the counter-pull rod piece, the high-strength bolt sleeve, the hoop reinforcement and the bottom plate;
s12, respectively welding the tops of the four side plates with the connecting parts of the top plate, respectively welding the bottoms of the four side plates with the connecting parts of the bottom plate, respectively welding the side surfaces of the middle cross plate with the side plates, and respectively welding the top surface and the bottom surface of the middle cross plate with the top plate and the bottom plate; forming a stable plate frame;
s13, placing the opposite pull rod piece into the plate frame, and respectively installing high-strength bolt sleeves at two ends of the opposite pull rod piece to enable the opposite pull rod piece to be connected between the two opposite side plates; wherein, two pairs of tie rods which are adjacent up and down are placed in a cross mode, and after the tie rods are placed, stirrups are laid; placing another pair of tie rod pieces in a crossed mode until the needed tie rod pieces and stirrups are installed completely; namely, the manufacture of the steel structure node is completed;
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, wherein the steel bar penetrates through the through holes on the top plate and the bottom plate;
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 problems, 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, hoisting the steel beam according to the requirement, aligning the port of the steel beam with the side plate of the steel structure node, and then welding the port of the steel beam with the side plate;
s83, welding middle connecting angle steel on the side face of the steel beam close to the port of the steel beam, and connecting the middle connecting angle steel with the high-strength bolt sleeve on the steel structure node in a threaded manner;
and S84, removing the mounting hooks, and finishing the assembly of the precast columns and the steel beams.
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 schematic perspective view of a prefabricated column according to an embodiment of the present invention;
FIG. 3 is a schematic perspective view of a steel cage according to an embodiment of the present invention;
fig. 4 to 6 are schematic views illustrating a reinforcement cage binding process according to a first embodiment of the present invention;
fig. 7 to 9 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. 10 to 14 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. 15 is a schematic view of a precast column according to a first embodiment of the present invention after concrete is poured;
FIG. 16 is a schematic view of a preformed column according to an embodiment of the present invention after all of the molds have been removed after formation;
FIG. 17 is a perspective view of an assembled precast column and steel beam according to an embodiment of the present invention;
fig. 18 is a schematic perspective view of a steel structure node according to a second embodiment of the present invention;
FIG. 19 is a schematic perspective view of a prefabricated column according to a second embodiment of the present invention;
fig. 20 is a perspective view illustrating 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, a steel structure node 10 provided in this embodiment is shown, which includes a side plate 1 located at a side surface, a top plate 2a located at a top portion, a plurality of pairs of tie members 3, a plurality of stirrups 4, a first high-strength bolt sleeve 5, a middle cross plate 6a, and a bottom plate 2b located at a bottom portion.
The side of roof 2a and the side of bottom plate 2b of this embodiment all extend out connecting portion, and roof 2a and bottom plate 2b all are the cross. A plurality of perforation 21 have all been seted up along respective thickness direction to the connecting portion of roof 2a and the connecting portion of bottom plate 2b, and this preformed hole 21 is used for supplying the reinforcing bar of steel reinforcement cage to pass.
The connecting part of the top plate 2a is fixedly connected with the top inner side surface of the side plate 1, and the connecting part of the bottom plate 2b is fixedly connected with the bottom inner side surface of the side plate 1, so that the side plate 1, the top plate 2a and the bottom plate 2b jointly form a stable plate frame.
The side plates 1 are provided with a plurality of reserved holes along the thickness direction, first high-strength bolt sleeves 5 are mounted at two ends of each opposite pull rod piece 3, the two opposite side plates 1 are connected through the opposite pull rod pieces 3, the first high-strength bolt sleeves 5 are embedded in the reserved holes, and threaded holes communicated with the outside are formed in the first high-strength bolt sleeves 5; and stirrups 4 are laid between the upper and lower adjacent pair of pull rod pieces 3.
Specifically, the intermediate cross plate 6a includes a first vertical plate, a second vertical plate, and a third vertical plate. The second longitudinal plate and the third longitudinal plate are respectively and vertically fixed on two opposite outer side surfaces of the first longitudinal plate; the first longitudinal plate is fixedly connected with the inner side surfaces of the two opposite side plates respectively, and the second longitudinal plate and the third longitudinal plate are fixedly connected with the inner side surfaces of the other two opposite side plates respectively. The cross section of the middle cross plate 6a is cross-shaped, the top surface of the middle cross plate 6a is fixedly connected with the bottom surface of the top plate 2a, the bottom surface of the middle cross plate 6a is fixedly connected with the top surface of the bottom plate 2b, and in order to save the space in the steel structure node 10, the width of the two end parts of the middle cross plate 6a is larger than that of the middle area.
A spacing space is reserved between two adjacent side plates 1, so that the stirrups 4 can be conveniently and vertically placed into the steel structure joint 10.
The counter-pull rod piece 3 is a counter-pull bolt, and the outer periphery of the counter-pull rod piece is provided with stripes, so that the connection strength of the counter-pull rod piece and concrete can be enhanced.
The top surface of the top plate 2a and the bottom surface of the bottom plate 2b are provided with a plurality of studs 7, so that the steel structure node 10 and the column are connected into a stable whole in a better way, and the steel structure node and the column can work together reliably from the surface.
The width of the connecting part of the top plate 2a is smaller than that of the side plate 1; the width of the connecting portion of bottom plate 2b also is less than the width of curb plate 1, through this design, can provide the space of wearing to establish for the vertical reinforcing bar 4 of steel reinforcement cage, enables the top that more reinforcing bar 4 wore out steel construction node 10.
Referring to fig. 2 and 3, the embodiment further provides a prefabricated column 100, which includes the steel structure node 10, the concrete body 20, and the reinforcement cage 30.
The steel structure node 10 is sleeved on the top end of the reinforcement cage 30 and embedded in the upper end of the concrete body 20. The first high-strength bolt sleeve 5 is exposed out of the outer side face of the concrete body 20, so that the assembly with the steel beam is facilitated.
The reinforcement cage 30 includes a post inner stirrup 31, 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 of reinforcing bar 32 stretches out the region that top plate 2a staggers at concrete main part 20 top, pours the floor board after, on the top of reinforcing bar 32 can imbed the floor board, has realized being connected of prefabricated post and floor board.
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.
In this embodiment, the width of the side plate 1 is smaller than the width of the concrete body 20, and a concrete structure is provided between the adjacent side plates 1 and 1.
The embodiment further provides a manufacturing method of the prefabricated column 100, which includes the following steps:
1. manufacturing a steel structure node 10:
s11, providing or preparing four steel side plates 1, a top plate 2a, a plurality of pair pull rods 3, a plurality of first high-strength bolt sleeves 5, a plurality of stirrups 4, a middle cross plate 6a and a bottom plate 2 b;
s12, respectively welding the inner side surfaces of the tops of the four side plates 1 with the connecting parts of the top plate 2a, respectively welding the inner side surfaces of the bottoms of the four side plates 1 with the connecting parts of the bottom plate 2b, respectively welding the side surface of the middle cross plate 6a with the side plate 1, welding the top surface with the top plate 2a, and welding the bottom surface with the bottom plate 2 b; forming a stable plate frame;
s13, placing the opposite pull rod piece 3 into the plate frame, and respectively installing first high-strength bolt sleeves 5 at two ends of the opposite pull rod piece 3 to enable the opposite pull rod piece 3 to be connected between the two opposite side plates 1; wherein, two groups of opposite pull rod pieces 3 which are adjacent up and down are placed in a cross mode, and after the opposite pull rod pieces 3 are placed, stirrups 4 are vertically placed into the plate frame from between two adjacent side plates 1, and then the stirrups 4 are laid; placing another pair of pull rod pieces 3 in a crossed mode until the needed pair of pull rod pieces 3 and the stirrups 4 are installed;
and S14, welding and anchoring a plurality of studs 7 on the top surface of the top plate 2a, and similarly welding and anchoring a plurality of studs 7 on the bottom surface of the bottom plate 2b to complete the manufacture of the steel structure node 10.
2. Referring to fig. 4 to 6, 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; the tool positioning tool assembly comprises a sleeve tool positioning tool 41 close to the sleeve 33 and a steel bar outlet end tool positioning tool 42 close to the steel bar outlet end;
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;
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;
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;
s26, binding the column inner stirrups 31 as required, and finishing the manufacture of the whole reinforcement cage 30;
3. referring to fig. 7 to 9, the assembling steps of the steel structure node 10 and the reinforcement cage 30 are as follows:
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, wherein the steel bars 32 penetrate through the through holes 21 on the top plate 2a and the bottom plate 2 b;
s33, installing the steel bar outlet end tool positioning tool 42 assembly 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. 10 to 14, 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 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 32 to be out of the bar;
s46, installing the counter-pulling piece 204 to finish the die installation;
5. referring to fig. 15, the concrete pouring step:
s51, carrying out concrete pouring, vibrating, surface repairing and maintenance to obtain a precast column 100;
6. referring to fig. 16, the auxiliary tool removing 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 201 and the right side die 202;
s63, removing the tool positioning tool components at the two ends;
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. 17, the present embodiment further provides an assembling method of a column and a beam, where the column is a prefabricated column 100 and the beam is a steel beam 300, and the method specifically includes the following steps:
s71, transporting the prefabricated column 100 to a construction site; because the prefabricated column 100 produced by using the steel structure node 10 is regular, the stacking and the transportation are simple and convenient. The prefabricated column 100 can be transported similarly to other prefabricated components, laid down, placed with skids as required, stacked, protected and fixed, and then transported according to the transportation standard of standard prefabricated components;
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 (the distance is about 500 mm), aligning a positioning buckle at the lower end of the column 100 with a pre-installed buckle (or aligning along a seven-character code), and slowly descending to ensure that the bottom of the 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, hoisting the steel beam 300 according to requirements, aligning the port of the steel beam 300 with the side plate 1 of the steel structure node 10, and then welding the port of the steel beam 300 with the side plate 1;
s83, welding middle connecting angle steel 400 on the side face, close to the port, of the steel beam 300, and connecting the middle connecting angle steel 400 with the first high-strength bolt sleeve 5 on the steel structure node 10 through a screw thread;
and S84, removing the installation hook, and 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. 18, 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:
in this embodiment, the second high-strength bolt sleeve 8 is embedded in the through hole of the top plate 2a and the through hole of the bottom plate 2b, and the second high-strength bolt sleeve 8 protrudes out of the plane of the top plate 2 a. The second high-strength bolt sleeves 8 are mounted at two ends of the vertical split bolts 9, and the second high-strength bolt sleeves 8 on the top plate 2a are connected with the second high-strength bolt sleeves 8 on the bottom plate 2b through the vertically arranged split bolts 9.
The connecting part of the top plate 2a is fixedly connected with the top surface of the side plate 1, and the connecting part of the bottom plate 2b is fixedly connected with the bottom surface of the side plate 1.
A cross-shaped reinforcing plate 6b protruding out of the plane of the top plate 2a is fixedly connected to the top surface of the top plate 2 a.
Meanwhile, referring to fig. 19 and 20, 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 S32 of the method for assembling a pillar beam, the embodiment specifically includes: and (3) disassembling the steel bar leading-out end tool positioning tool 42, and sleeving the steel structure node 10 into the bound steel bar cage 30, wherein the top ends of part of the steel bars 32 are connected into the second high-strength bolt sleeve 8 on the bottom plate 2b, and the second high-strength bolt sleeve 8 on the top plate 2a is connected into a section of steel bar 11.
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 top plate positioned at the top, a plurality of pair of pull rod pieces and a bottom plate positioned at the bottom; the side surface of the top plate and the side surface of the bottom plate extend out of connecting parts, and the connecting parts of the top plate and the bottom plate are provided with a plurality of through holes along the thickness direction of the connecting parts; the connecting part of the top plate is fixedly connected with the top of the side plate, and the connecting part of the bottom plate is fixedly connected with the bottom of the side plate; the side plates are provided with a plurality of preformed holes along the thickness direction, both ends of the counter pull rod piece are provided with high-strength bolt sleeves, the two opposite side plates are connected with the counter pull rod piece through the preformed holes, the high-strength bolt sleeves are embedded in the preformed holes, and threaded holes communicated with the outside are formed in the high-strength bolt sleeves; hoops are laid between the pair of pull rod pieces which are adjacent up and down; the steel structure node is sleeved at the top end of the steel reinforcement cage and embedded at the upper end part of the concrete main body, and the high-strength bolt sleeve is exposed 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; characterized in that the method comprises at least the following steps:
manufacturing a steel structure node:
s11, providing or preparing the side plate, the top plate, the counter-pull rod piece, the high-strength bolt sleeve, the hoop reinforcement and the bottom plate;
s12, respectively welding the tops of the four side plates with the connecting parts of the top plate, respectively welding the bottoms of the four side plates with the connecting parts of the bottom plate, respectively welding the side surfaces of the middle cross plate with the side plates, and respectively welding the top surface and the bottom surface of the middle cross plate with the top plate and the bottom plate; forming a stable plate frame;
s13, placing the opposite pull rod piece into the plate frame, and respectively installing high-strength bolt sleeves at two ends of the opposite pull rod piece to enable the opposite pull rod piece to be connected between the two opposite side plates; wherein, two pairs of tie rods which are adjacent up and down are placed in a cross mode, and after the tie rods are placed, stirrups are laid; placing another pair of tie rod pieces in a crossed mode until the needed tie rod pieces and stirrups are installed completely; namely, the manufacture of the steel structure node is completed;
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, wherein the steel bar penetrates through the through holes on the top plate and the bottom plate;
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, hoisting the steel beam according to the requirement, aligning the port of the steel beam with the side plate of the steel structure node, and then welding the port of the steel beam with the side plate;
s83, welding middle connecting angle steel on the side face of the steel beam close to the port of the steel beam, and connecting the middle connecting angle steel with the high-strength bolt sleeve on the steel structure node in a threaded manner;
and S84, removing the mounting hooks, and finishing the assembly of the precast columns and the steel beams.
CN201910042663.2A 2019-01-17 2019-01-17 Manufacturing method of prefabricated column and assembling method of column beam Active CN109537811B (en)

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CN110847447B (en) * 2019-11-28 2021-01-29 三一筑工科技有限公司 Double-skin wall connecting structure
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JPH07207755A (en) * 1994-01-24 1995-08-08 Ando Kensetsu Kk Connection part structure of reinforced concrete column and steel structure beam
JPH11100900A (en) * 1997-09-29 1999-04-13 Ando Kensetsu Kk Joint part structure between reinforced concrete column and steel beam
CN103882971A (en) * 2014-04-11 2014-06-25 北京工业大学 Industrialized assembly type multi-storey and high-storey steel-structure tubular cross board self-resetting buckling-prevention herringbone bracing system
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