CN106592777B - Assembled steel-is mixed to combine beam-column node structure and its implementation method - Google Patents

Assembled steel-is mixed to combine beam-column node structure and its implementation method Download PDF

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Publication number
CN106592777B
CN106592777B CN201610954701.8A CN201610954701A CN106592777B CN 106592777 B CN106592777 B CN 106592777B CN 201610954701 A CN201610954701 A CN 201610954701A CN 106592777 B CN106592777 B CN 106592777B
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steel
concrete
construction
adapter
column
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CN106592777A (en
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何余良
吴旭东
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University of Shaoxing
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University of Shaoxing
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    • 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
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/185Connections not covered by E04B1/21 and E04B1/2403, e.g. connections between structural parts of different material
    • 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
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/30Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts being composed of two or more materials; Composite steel and concrete constructions

Abstract

It is mixed in conjunction with beam-column node structure and its implementation method that the invention discloses a kind of assembled steels-.The present invention includes concrete structure, steel construction, the mixed adapter section of steel-;Concrete structure includes concrete, reinforcing bar;Steel construction includes short girder steel, short steel column, ribbed stiffener and connector;It includes concrete, reinforcing bar, ribbed stiffener, shear connector, prestressed cable, anchoring system, upper steel flange plate, upper steel flange plate, lateral steel end plate that steel-, which mixes adapter section,;Shear connector symmetrically be welded on steel flange plate, on the medial surface that upper steel flange plate and lateral steel end plate enclose;It is mixed in adapter section in concrete structure and steel-and prestressed cable is arranged in a straight line, be attached by the way of bolt or welding between the short girder steel and short steel column of steel construction, the external wrapping concrete protective layer at steel construction.The present invention reduces steel dosage, anti-corrosion fire prevention and later maintenance maintenance costs;It solves the wet seam problems in prefabrication and assembly construction concrete structure construction, improves construction efficiency.

Description

Assembled steel-is mixed to combine beam-column node structure and its implementation method
Technical field
The invention belongs to construction engineering technical fields, and in particular to a kind of assembled steel-is mixed to combine beam-column node structure.
Background technique
The construction industry in China is still the relatively backward conventional industries of labor-intensive, mode of construction at present, therefore anxious Traditional architecture industry transition and upgrade is needed, assembled arthitecutral structure is actively carried out, existing assembled arthitecutral structure form is mainly Steel construction, but it is mainly used for Gongjian room, is of limited application, and the construction cost of steel construction is high, anti-corrosion fire prevention processing skill Art is difficult, and maintenance cost is high after being delivered for use;Relative to steel construction, conventional concrete construction has a wide range of application, mainly using cast-in-place Method construction, such build model the problems such as there are high energy consumption, high pollution, poor efficiency, extensive style, with current novel cities and towns Change, industrialization, Informatization Development requirement are incompatible.The current development to promote assembling building structure, it is pre- using assembled Concrete structure processed is construction industry trend of the times.So-called prefabricated concrete structure is using industrialized production as base Plinth, the building structure that building structure uses assembly method to build with all or part of component component built in built-in body, because This key for promoting prefabricated concrete structure is how effectively to solve the connectivity problem of component component, existing assembled The component component of precast concrete mainly uses wet seam, and compared with in-situ deposited prefabricated concrete structure, construction speed is It improves, but the quality of wet seam crossing is difficult to ensure, the room for promotion of prefabrication and assembly construction rate is limited.In order to improve assembled arthitecutral structure Prefabrication and assembly construction rate and seam crossing construction quality, be pushed further into the development and in construction projects of assembled arthitecutral structure Using needing to find more reasonable connection type.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, provide it is a kind of it is economical and practical, structure is simple, Assembled steel-easy for construction is mixed to combine beam-column node structure and its implementation method.
In order to solve the above technical problems, technical solution proposed by the present invention is as follows:
Assembled steel-is mixed to combine beam-column node structure, including concrete structure, steel construction, steel-to mix adapter section;Concrete Structure includes concrete, reinforcing bar, and reinforcing bar is arranged in concrete, bears moment of flexure and shearing together with concrete;Steel construction includes Short girder steel, short steel column, ribbed stiffener and connector;Ribbed stiffener is used to improve the stability of steel construction;It is by coagulation that steel-, which mixes adapter section, Soil, reinforcing bar, ribbed stiffener, shear connector, prestressed cable, anchoring system, upper steel flange plate, upper steel flange plate, lateral steel end plate are constituted; Shear connector symmetrically be welded on steel flange plate, on the medial surface that upper steel flange plate and lateral steel end plate enclose;Steel reinforced concrete-knot The concrete for closing section is attached with upper steel flange plate, upper steel flange plate and lateral steel end plate by shear connector, and common receiving is outer Power;Arrangement prestress rope in adapter section is mixed in concrete structure and steel-, prestressed cable mixes adapter section and concrete structure in steel- It is inside arranged in a straight line, to improve switching performance between concrete structure and steel construction, is adopted between the short girder steel and short steel column of steel construction It is attached with bolt or the mode of welding, the external wrapping concrete protective layer at steel construction, improves the anti-corrosion fire line of steel construction Energy;
The number of the shear connector should symmetrically arrange that the form of shear connector is peg and PBL shear connector, shear connector Size and number according to be applied to steel-mix adapter section on dead load and mobile load size, pass through the calculation method of existing specification It determines;
The number of share of stock that the steel-mixes the prestressed cable in adapter section is one perhaps multiply hole count correspondence one or more It is a, steel strand wires are used in beams of concrete, and fining twisted steel is used in concrete column;
The steel-mixes the anchoring system in adapter section and uses intermediate plate anchor in beams of concrete, uses in concrete column Nut anchoring;
Connector is connected by screw bolts or welding manner in the steel construction;
The mixed implementation method in conjunction with beam-column node structure of the assembled steel-, specifically includes that steps are as follows:
Step 1: in the good short girder steel of factory process and short steel column, and in short girder steel and short steel column welding ribbed stiffener, while Uniform welding shear connector on the inside that upper steel flange plate, upper steel flange plate and lateral steel end plate enclose, then by upper steel flange plate, Upper steel flange plate and lateral steel end plate are welded on steel-and mix at adapter section;
Step 2: the short girder steel processed and short steel column is in place, it binds concrete structure and steel-mixes the reinforcing bar of adapter section, And the punching device of prestressed rope;
Step 3: template needed for installation casting concrete structure, casting concrete are conserved, and are reached and are set to concrete strength After counting prescribed strength, form removal system;
Step 4: steel-mix adapter section in punching device preformed hole in prestressed rope and anchoring system, by design Control stretching force by prestressed cable tensioning in place;
Step 5: the steel-to complete in factory being mixed, beam-column node structure is combined to be transported to construction site, pass through lifting Equipment hoisting in place, is then attached using connector, in the steel construction outer layer casting concrete protective layer that splicing is completed;
Compared with the prior art, the advantages of the present invention are as follows:
Prefabricated construction, construction speed is fast, influences on surrounding enviroment small
Using the present invention, compared with common cast-in-place bean column node, it is not necessarily to wet seam in conjunction with bean column node, has been prefabricated in the factory At components such as bondbeam, columns, it is transported to construction site, builds falsework, in place using lifting equipment lifting, uses bolt Or the mode of welding connects bondbeam and column, speed of application is fast, small to surrounding environment influence.
Element factory is prefabricated, and performance is more preferable, and quality is higher.
Using the present invention, due to being prefabricated in the factory in conjunction with beam column, compared with normal reinforced concrete beam column, coagulation Soil compact-type is higher, better quality;It is not in concrete vibration in steel pipe compared with current steel tube-concrete combined joint It smashes and unevenly makes occur cavity in steel pipe, thus may cause steel pipe stress buckling phenomenon.
The advantages of making full use of steel and concrete, economic indicator is low
Using the present invention, is combined in assembled steel reinforced concrete bondbeam Column border node using steel reinforced concrete, both played the excellent of concrete structure Point, but played that steel connect with steel is easy to application property.Steel dosage is greatly reduced compared with steel construction reduces cost, reduces steel Structural anticorrosion fire prevention and later maintenance maintenance cost;There is no wet seam compared with cast-in-place concrete node, at bean column node, makes to apply Work speed is accelerated, and shortens the construction period, save the cost.
Detailed description of the invention
Steel-Fig. 1 (a) of the invention is mixed to combine bean column node facade layout drawing;
Steel-Fig. 1 (b) of the invention is mixed to combine bean column node facade layout drawing;
Concrete structure sectional view Fig. 2 of the invention;
Steel-Fig. 3 of the invention mixes adapter section sectional view;
Steel-Fig. 4 of the invention mixes adapter section layout drawing;
Node Fig. 5 of the invention connects sectional view;
Steel inserting knot figure Fig. 6 of the invention.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
Assembled steel-is mixed to combine beam-column node structure, is mixed adapter section 3 by concrete structure 1, steel construction 2, steel-and is constituted;It is mixed Xtah Crude Clay structure 1 includes concrete 4, reinforcing bar 5, and reinforcing bar 5 is arranged in concrete 4, bears moment of flexure and shearing together with concrete;Steel Structure 2 is made of short girder steel 7, short steel column 8, ribbed stiffener 9 and connector 10;Ribbed stiffener 9 is used to improve the stability of steel construction 2, Avoid it that local buckling occurs;Steel-mix adapter section 3 be by concrete 4, reinforcing bar 5, ribbed stiffener 9, shear connector 11, prestressed cable 12, Anchoring system 13, upper steel flange plate 14, upper steel flange plate 15, lateral steel end plate 16 are constituted;The welding of shear connector 11 symmetrically On the medial surface that upper steel flange plate 14, upper steel flange plate 15 and lateral steel end plate 16 enclose;The concrete 4 of steel reinforced concrete-adapter section 3 It is attached with upper steel flange plate 14, upper steel flange plate 15 and lateral steel end plate 16 by shear connector 11, bears external force jointly.For Switching performance between concrete structure 1 and steel construction 2 is improved, mixes arrangement prestress rope in adapter section 3 in concrete structure 1 and steel- 12, prestressed cable 12 is mixed in adapter section 3 and concrete structure 1 in steel-and is arranged in a straight line.The short girder steel 7 and short steel column of steel construction 2 It is attached by the way of bolt 17 or welding between 8, the external wrapping concrete protective layer 6 at steel construction 2 improves steel construction 2 Anti-corrosion fire protecting performance, the service life of extending structure.
Assembled steel-of the present invention is mixed to combine beam-column node structure to mix 3 groups of adapter section by concrete structure 1, steel construction 2, steel- At the specific size that concrete structure 1, steel construction 2, steel-mix adapter section 3 passes through existing rule according to the size of dead load and mobile load The calculation method of model determines.
In the present invention, it is by concrete 4, reinforcing bar 5, ribbed stiffener 9, shear connector 11, prestressed cable 12, anchor that steel-, which mixes adapter section 3, Solid system 13, upper steel flange plate 14, upper steel flange plate 15, lateral steel end plate 16 composition, the number of shear connector 11 should be symmetrically Arrangement, the form of shear connector 11 are peg and PBL shear connector, and the size and number of shear connector 11 are according to being applied to toughened internal stress The size of dead load and mobile load on 3 is determined by the calculation method of existing specification.
In the present invention, steel-mixes the arrangement and number of reinforcing bar 5 in adapter section 3 according to the dead load and mobile load being applied on beam column Size, determined by the calculation method of existing specification.
In the present invention, the number of share of stock that steel-mixes the prestressed cable 12 in adapter section 3 is one or multiply, and hole count is one corresponding Or it is multiple, steel strand wires are used in 4 beam of concrete, fining twisted steel are used in 4 column of concrete, quantity is according to bridge dead load With the size of mobile load and the size of beam, determined by the calculation method of existing specification.
In the present invention, steel-mixes the anchoring system 13 in adapter section 3 and uses intermediate plate anchor in 4 beam of concrete, in concrete 4 It is anchored in column using nut.
In the present invention, the size, quantity of ribbed stiffener 9 and arrangement are according to the size of dead load and mobile load in steel construction 2, by existing There is the calculation method of specification to determine.
In the present invention, connector 10 is using the connection of bolt 17 or welding manner in steel construction 2.
In the present invention, 4 grade of concrete and 5 specification of reinforcing bar and quantity in concrete structure, according to the size that is further applied load With 4 beam column size of concrete, determined by existing proper calculation method.
The assembled steel-is mixed to combine bean column node to be mixed adapter section 3 by concrete structure 1, steel construction 2, steel-and constituted, such Joint form at the scene it is assembled it is complete after, node point connection does not need cast in situs, solves prefabrication and assembly construction concrete structure construction In wet seam problems, improve construction efficiency, accelerate construction progress, only at node use steel.It is big compared with steel construction Reducing steel dosage greatly reduces cost, reduces anticorrosion of steel structure fire prevention and later maintenance maintenance cost;With cast-in-place concrete node It compares, there is no wet seam at bean column node, the tension and compression strength of steel are high, and moulding, toughness properties are good, have preferably anti- Shock stability and mechanical property.
The mixed implementation method in conjunction with beam-column node structure of assembled steel-proposed by the present invention specifically includes that steps are as follows:
Step 1: welding ribbed stiffener 9 in the good short girder steel 7 of factory process and short steel column 8, and in short girder steel 7 and short steel column 8, together When on the inside that upper steel flange plate 14, upper steel flange plate 15 and lateral steel end plate 16 enclose uniform welding shear connector 11, then Upper steel flange plate 14, upper steel flange plate 15 and lateral steel end plate 16 are welded on steel-and mixed at adapter section 3.
Step 2: the short girder steel 7 processed and short steel column 8 is in place, it binds concrete structure 1 and steel-mixes adapter section 3 Reinforcing bar 5, and the punching device of prestressed rope 12.
Step 3: template needed for installation casting concrete structure 1, casting concrete 4 is conserved, to concrete semi-finals degree Up to after design code intensity, form removal system.
Step 4: steel-mix adapter section in punching device preformed hole in prestressed rope 12 and anchoring system 13, press Design control stretching force by 12 tensioning of prestressed cable in place.
Step 5: the steel-to complete in factory being mixed, beam-column node structure is combined to be transported to construction site, pass through lifting Equipment hoisting in place, then uses connector 10(bolt 17 or welding) it is attached, it is poured in 2 outer layer of steel construction that splicing is completed Build concrete cover.
Embodiment:
Concrete structure 1, steel construction 2 and steel-mix arrangement form such as Fig. 1 (a), 1(b of adapter section 3 in the present embodiment) and 2 It is shown.1 2-4 long meter of concrete structure, deck-molding 450mm, deck-siding 250mm, the size of column is 400mm × 400mm;Steel construction A length of 0.5-1.5 meters of 2 short girder steel 7 and short steel column 8 are high wide identical as concrete structure;Toughened internal stress 3 by concrete 4, Reinforcing bar 5, multiple shear connectors 11, prestressed cable 12, anchoring system 13, upper steel flange plate 14, upper steel flange plate 15 and lateral steel end Plate 16 forms, a length of 652mm of steel reinforced concrete combined segment 3, and steel-mixes the upper steel flange plate 14 of adapter section 3, upper steel flange plate 15 and lateral The thickness of steel end plate 16 is 20mm, and 6 diameter of shear connector is 10mm, bond distance 70mm, and the spacing between shear connector 6 is according to proper calculation It obtains.
Arrangement of the prestressed cable 12 of the present embodiment in the mixed bondbeam 4 of steel-is as shown in Figure 3-4.Its specific coordinate position: Upper and lower level prestressed cable 12 controls the size of tension stress according to actually applied load, is advised by correlation away from beam surface 15cm Model is calculated.
The arrangement of the steel construction 2 of the present embodiment is as seen in figs. 5-6.Steel construction by short girder steel 7, short steel column 8, ribbed stiffener 9 and Connector 10 forms.10 plate thickness 20mm of connector, 9 12~16mm of thickness of ribbed stiffener, short girder steel 7 are connected by screw bolts with short steel column 8, Short steel column 8 is connected by screw bolts with short steel column 8 and welds Hybrid connections, and size and 4 protective layer thickness of concrete are according to specification It calculates.

Claims (4)

1. assembled steel-is mixed to combine beam-column node structure, it is characterised in that mixed including concrete structure (1), steel construction (2), steel- Adapter section (3);Concrete structure (1) includes concrete (4), reinforcing bar (5), arranges reinforcing bar (5) in concrete (4), same to coagulation Native (4) bear moment of flexure and shearing together;Steel construction (2) includes short girder steel (7), short steel column (8), ribbed stiffener (9) and connector (10);Ribbed stiffener (9) is used to improve the stability of steel construction (2);Steel-mix adapter section (3) be by concrete (4), reinforcing bar (5), Ribbed stiffener (9), shear connector (11), prestressed cable (12), anchoring system (13), upper steel flange plate (14), upper steel flange plate (15), Lateral steel end plate (16) is constituted;Shear connector (11) symmetrically be welded on steel flange plate (14), upper steel flange plate (15) and On the medial surface that lateral steel end plate (16) encloses;Steel-mixes concrete (4) and the upper steel flange plate (14), the upper steel wing of adapter section (3) Listrium (15) and lateral steel end plate (16) are attached by shear connector (11), bear external force jointly;In concrete structure (1) and Steel-mixes the interior arrangement prestress rope (12) of adapter section (3), and prestressed cable (12) mixes adapter section (3) and concrete structure (1) in steel- Inside it is arranged in a straight line, so that switching performance between concrete structure (1) and steel construction (2) is improved, the short girder steel (7) of steel construction (2) It is attached by the way of bolt (17) or welding between short steel column (8), the external wrapping concrete protective layer at steel construction (2) (6), the anti-corrosion fire protecting performance of steel construction (2) is improved;
The number of shear connector (11) should symmetrically arrange that the form of shear connector (11) is peg and PBL shear connector, shear connector (11) size and number mix the size of dead load and mobile load on adapter section (3) according to steel-is applied to, and pass through the meter of existing specification Calculation method determines;
The number of share of stock that steel-mixes the prestressed cable (12) in adapter section (3) is one or multiply, and hole count corresponds to one or more, Steel strand wires are used in concrete (4) beam, and fining twisted steel is used in concrete (4) column.
2. assembled steel-according to claim 1 is mixed to combine beam-column node structure, it is characterised in that steel-mixes adapter section (3) In anchoring system (13) in concrete (4) beam use intermediate plate anchor, in concrete (4) column using nut anchor.
3. assembled steel-according to claim 2 is mixed to combine beam-column node structure, it is characterised in that steel construction connects in (2) Fitting (10) is connected using bolt (17) or welding manner.
4. the mixed implementation method in conjunction with beam-column node structure of assembled steel-according to claim 3, it is characterised in that specific It comprises the following steps that
Step 1: welding ribbed stiffener in the good short girder steel (7) of factory process and short steel column (8), and in short girder steel (7) and short steel column (8) (9), uniform welding is cut while on the inside that upper steel flange plate (14), upper steel flange plate (15) and lateral steel end plate (16) enclose Upper steel flange plate (14), upper steel flange plate (15) and lateral steel end plate (16) are then welded on steel-and mix adapter section by power key (11) (3) at;
Step 2: in place by the short girder steel (7) processed and short steel column (8), binding concrete structure (1) and steel-mixes adapter section (3) reinforcing bar (5), and the punching device of prestressed rope (12);
Step 3: template needed for installation casting concrete structure (1), casting concrete (4) are conserved, strong to concrete (4) After degree reaches design code intensity, form removal system;
Step 4: steel-mix adapter section in punching device preformed hole in prestressed rope (12) and anchoring system (13), press Design control stretching force by prestressed cable (12) tensioning in place;
Step 5: the steel-to complete in factory being mixed, beam-column node structure is combined to be transported to construction site, pass through hanging device Lifting in place, is then attached using connector (10), in steel construction (2) outer layer casting concrete protective layer that splicing is completed (6)。
CN201610954701.8A 2016-10-27 2016-10-27 Assembled steel-is mixed to combine beam-column node structure and its implementation method Active CN106592777B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107366354A (en) * 2017-07-26 2017-11-21 西安建筑科技大学 Prefabricated PC beam column dry method connecting node
CN107965054B (en) * 2017-11-23 2019-09-20 扬州大学 A kind of prestressed assembly formula truss-like steel reinforced concrete structure system and its assembling method

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CN104294748A (en) * 2014-09-23 2015-01-21 同济大学 Joint section structure for hybrid beam cable-stayed bridge and construction method thereof
CN104727226A (en) * 2015-02-15 2015-06-24 中交第一公路工程局有限公司 Construction method for steel-concrete composite girder
CN104762871A (en) * 2015-04-22 2015-07-08 武汉理工大学 Prestressed concrete-steel tank beam bond beam continuous beam bridge

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CN201089978Y (en) * 2007-09-21 2008-07-23 四川省交通厅公路规划勘察设计研究院 Transition connecting construction for steel construction and concrete structure
CN201648950U (en) * 2010-05-11 2010-11-24 天津市市政工程设计研究院 Novel beam structure of steel-concrete combination section
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