CN106555448B - T-shaped rigid joint coupled wall with pre-buried joint beam sections and construction method thereof - Google Patents
T-shaped rigid joint coupled wall with pre-buried joint beam sections and construction method thereof Download PDFInfo
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- CN106555448B CN106555448B CN201610867027.XA CN201610867027A CN106555448B CN 106555448 B CN106555448 B CN 106555448B CN 201610867027 A CN201610867027 A CN 201610867027A CN 106555448 B CN106555448 B CN 106555448B
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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
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
- E04B2/58—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of metal
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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
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated 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
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
- E04B2/58—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of metal
- E04B2/60—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of metal characterised by special cross-section of the elongated members
Abstract
The utility model provides a T shape rigidity seam Limb wall with pre-buried seam beam section and construction method thereof, this Limb wall includes that mutually perpendicular links together, forms the first wall unit and the second wall unit of T shape, first wall unit and second wall unit are prefabricated component, and through the connection of watering area behind the seam between the two. The joint connection of the invention is safe and reliable, has good anti-seismic performance, and simultaneously realizes the synchronous implementation of factory prefabrication and field installation: the prefabricated wall body assembly units are assembled and installed in a factory on site, so that the structural members are manufactured and installed at the same time, the construction speed of the main structure is improved, the guarantee is provided for the scheduled completion of construction projects, the wet operation amount of a concrete site is reduced by the assembly and combination of the structures in the construction process, the use amount of templates and temporary supports is reduced, the generation of construction waste is reduced, the requirements of material saving and environment protection are met, and the purpose of green construction is achieved.
Description
Technical Field
The invention relates to the field of building construction, in particular to an assembled wall limb structure and a construction method thereof.
Background
The high-rise building structure is a necessary choice for solving the contradiction between the continuous increase of urban population and the gradual shortage of urban land in the urbanization process of China, and the coupled wall structure system is an indispensable element in the high-rise building structure. According to the previous measured data, the coupled wall system inherits the advantages of low construction cost, large lateral stiffness resistance and the like of a simple shear wall project, and also embodies the advantages of yielding and energy consumption of the coupled beams under the action of strong earthquake, avoiding or reducing the condition that a large number of cracks are concentrated at the bottom of the wall body, and reducing the repair cost after the earthquake.
However, in the practical application process, the requirements of the building use function are limited, and the traditional concrete connecting beam is often difficult to meet the requirements of the shear resistance of the cross section, so that certain difficulties are caused to designers. Compared with the traditional coupled wall, the mixed coupled wall is characterized in that the steel coupled beams are used for replacing concrete coupled beams, and the eccentric support energy dissipation beam theory in the existing relevant specifications and regulations is applied, so that the mixed coupled wall has better energy dissipation capability and continuous collapse resistance capability than the steel coupled beams, and is favorable for meeting the use requirement of buildings and simplifying the assembly process. For a novel assembly type structure system, the problem of solving the connection form among wall assembly units becomes urgent to be solved.
Disclosure of Invention
The invention aims to provide a T-shaped rigid joint coupled wall with embedded joint beam sections and a construction method thereof, and aims to solve the technical problems of complex stress, unstable structure, unreliable connection relation and inconvenient construction of the traditional structure.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a T shape rigidity seam limb wall even with pre-buried seam beam segment, includes that mutually perpendicular links together, forms the first wall unit and the second wall unit of T shape, first wall unit and second wall unit are prefabricated component, and through the connection of seam post-cast strip between the two.
The first wall unit comprises a first wall unit concrete wall body and a first wall unit steel reinforcement framework positioned inside the first wall unit concrete wall body, the middle parts of the upper side and the lower side of the first wall unit concrete wall body are correspondingly pre-embedded with a first wall unit pre-embedded joint column, the left side or the right side of the first wall unit concrete wall body is pre-embedded with a pre-embedded joint beam section, and the outer end parts of the first wall unit pre-embedded joint column and the pre-embedded joint beam section all exceed the side edge of the first wall unit concrete wall body.
The embedded joint beam section is located on the upper portion of the first wall unit concrete wall body, and a group of horizontal joint anchor ring ribs are vertically connected to the first wall unit concrete wall body below the embedded joint beam section.
The upper side and the lower side of the first wall unit concrete wall body are symmetrically connected with two first wall unit embedded joint columns, the two first wall unit embedded joint columns on the same side are distributed at equal intervals, and the length range of the outer end parts of the first wall unit embedded joint columns, which exceed the side edges of the first wall unit concrete wall body, is 5-10 cm and is about half of the thickness of a floor slab.
And the embedded joint column of the first wall unit is connected with a shear-resistant stud of the first wall unit.
The second wall unit comprises a second wall unit concrete wall body and a second wall unit steel reinforcement framework positioned inside the second wall unit concrete wall body, a pre-buried vertical joint column section is pre-buried in the middle shaft position of the second wall unit, the middle parts of the upper side and the lower side of the second wall unit are symmetrical to the pre-buried vertical joint column section and correspondingly pre-buried in the second wall unit, and the outer end parts of the pre-buried joint column of the second wall unit and the pre-buried vertical joint column section both exceed the side edge of the second wall unit concrete wall body.
The upper side and the lower side of the second wall unit concrete wall body are symmetrically connected with two second wall unit embedded joint columns, and the length range of the outer end parts of the second wall unit embedded joint columns, which exceed the side edges of the second wall unit concrete wall body, is 5-10 cm and is about half of the thickness of a floor slab.
And the embedded joint column of the second wall unit is connected with a shear-resistant stud of the second wall unit.
The embedded joint beam section comprises an embedded joint beam embedded along the length direction of the concrete wall body of the first wall unit, embedded joint beam section shear-resistant studs connected to the embedded joint beam, and embedded joint beam section auxiliary steel bars vertically connected to the lower surface of the embedded joint beam through embedded joint beam section steel bar connectors.
The length range of the outer end part of the embedded joint beam exceeding the side edge of the first wall unit concrete wall body is 5-10 cm, and the length of the inner end part of the embedded joint beam does not exceed one third of the length of the first wall unit concrete wall body; the upper surface of the pre-buried seam beam is flush with the edge of the first wall unit concrete wall body, and the end parts of the pre-buried seam beam section shear-resistant studs connected to the upper surface of the pre-buried seam beam exceed the edge of the first wall unit concrete wall body.
The embedded joint beam is H-shaped steel or combined I-shaped steel, an embedded joint beam section stiffening plate is perpendicularly welded between two flanges of the embedded joint beam or combined I-shaped steel, and the embedded joint beam section stiffening plate does not exceed the edge of the first wall unit concrete wall body.
The embedded vertical joint column section comprises an embedded vertical joint column erected at the end part of the second wall unit concrete wall body and an embedded joint short beam connected to the embedded vertical joint column along the width direction of the second wall unit concrete wall body.
The length range of the two end parts of the embedded vertical joint column exceeding the side edge of the concrete wall body of the second wall unit is 5-10 cm.
The length range of the outer end part of the embedded joint short beam exceeding the side edge of the second wall unit concrete wall body is 5-10 cm.
The embedded joint short beam and the embedded joint beam are in butt joint and poured inside the joint post-pouring belt, wherein the embedded joint short beam is relative to the embedded joint beam, and the lengths of the embedded joint short beam and the embedded joint beam are compared, and the embedded joint short beam is shorter than the embedded joint beam.
The joint post-cast strip comprises joint post-cast strip concrete, joint post-cast strip vertical steel bars and joint post-cast strip hooping, wherein the joint post-cast strip concrete is poured inside the joint post-cast strip concrete.
The embedded vertical joint column section further comprises embedded vertical joint column section shear-resistant studs connected to the embedded vertical joint column and the embedded joint short beam and embedded vertical joint column section anchor ring ribs arranged around the embedded vertical joint column and the embedded joint short beam.
The length range of the embedded vertical joint column section anchor ring rib exceeding the side edge of the second wall unit concrete wall body is 4-10 cm, and the embedded vertical joint column section anchor ring rib and the horizontal joint anchor ring rib are correspondingly connected and poured inside the post-joint pouring belt.
The first wall unit further comprises a first wall unit embedded beam, a first wall unit shear-resistant stud connected to the first wall unit embedded beam, and a first wall unit auxiliary steel bar vertically connected to the lower surface of the first wall unit embedded beam through a first wall unit steel bar connector.
The first wall unit embedded beam is embedded in the upper side face of the first wall unit concrete wall body symmetrically to the embedded joint beam section, the length range of the outer end part of the first wall unit embedded beam, which exceeds the side edge of the first wall unit concrete wall body, is 5-10 cm, and the inner end part of the first wall unit embedded beam is not more than one third of the length of the first wall unit concrete wall body; the upper surface of the first wall unit embedded beam is flush with the edge of the first wall unit concrete wall body, and the end part of the first wall unit shear-resistant stud connected to the upper surface of the first wall unit embedded beam exceeds the edge of the first wall unit concrete wall body.
The first wall unit embedded beam is H-shaped steel or combined I-shaped steel, a first wall unit stiffening plate is vertically welded between two flanges of the first wall unit embedded beam, and the first wall unit stiffening plate does not exceed the edge of the first wall unit concrete wall body.
First wall unit steel framework includes the steel bar rack that comprises horizontal reinforcement, vertical reinforcing bar and the drawknot muscle between the two and sets up the first wall unit joint post construction muscle around the pre-buried joint post of first wall unit.
The left side and the right side of the second wall unit are symmetrically connected with a second wall unit embedded beam, a second wall unit shear-resistant stud connected to the second wall unit embedded beam and a second wall unit auxiliary steel bar vertically connected to the lower surface of the second wall unit embedded beam through a second wall unit steel bar connector.
The second wall unit embedded beam is embedded in the upper part of the second wall unit concrete wall body, the length range of the outer end part of the second wall unit embedded beam exceeding the side edge of the second wall unit concrete wall body is 5-10 cm, and the inner end part of the second wall unit embedded beam does not exceed one third of the length of the second wall unit concrete wall body; the upper surface of the second wall unit embedded beam is flush with the edge of the second wall unit concrete wall, and the end part of the first wall unit shear-resistant stud connected to the upper surface of the second wall unit embedded beam exceeds the edge of the second wall unit concrete wall.
The second wall unit embedded beam is H-shaped steel or combined I-shaped steel, a second wall unit stiffening plate is perpendicularly welded between two flanges of the second wall unit embedded beam, and the second wall unit stiffening plate does not exceed the edge of the second wall unit concrete wall body.
The second wall unit steel reinforcement framework comprises a steel reinforcement net rack formed by horizontal steel bars, vertical steel bars and tie bars between the horizontal steel bars and the vertical steel bars and second wall unit joint column construction bars arranged on the periphery of the embedded joint column of the second wall unit.
One or more surfaces of the upper surface, the lower surface, the left surface and the right surface of the first wall unit concrete wall body are rough surfaces or are provided with first wall unit key grooves in the horizontal direction.
One or more surfaces of the upper surface, the lower surface, the left surface and the right surface of the second wall unit concrete wall body are rough surfaces or second wall unit key grooves are formed in the horizontal direction.
The first wall unit embedded joint column and the second wall unit embedded joint column are H-shaped steel or combined I-shaped steel.
The embedded vertical joint column is cross-shaped steel, and the embedded joint short beam is H-shaped steel, combined I-shaped steel or a steel plate.
Between the single-layer T-shaped rigid joint coupled walls, the embedded joint beams of the first wall unit and the embedded joint short beams of the second wall unit are correspondingly connected in a mixed mode through high-strength bolts or bolted welding and poured in the post-joint casting belt concrete.
Between multilayer's T shape rigidity seam continuous limb wall, the pre-buried seam post of the first wall unit of one deck corresponds through high strength bolt or the mixed connection of bolt welding with the pre-buried seam post of the first wall unit of last deck and pours in the concrete, and the pre-buried vertical seam post of one deck corresponds through high strength bolt or the mixed connection of bolt welding with the pre-buried vertical seam post of last deck and pours in the concrete.
And a floor slab is connected between the two layers of T-shaped rigid joint coupled walls, and the floor slab is a cast-in-place concrete floor slab or an assembled integral floor slab.
The construction method of the T-shaped rigid joint coupled wall with the pre-embedded joint beam sections comprises a prefabricating process and a field assembling process of a first wall unit and a second wall unit, and comprises the following specific steps:
prefabricating a first wall unit:
the method comprises the following steps of firstly, manufacturing a first wall unit embedded beam, a first wall unit embedded joint column and correspondingly connecting a first wall unit shear-resistant stud and a first wall unit auxiliary steel bar.
And step two, manufacturing an embedded joint beam section.
Correspondingly connecting the first wall unit embedded beam, the first wall unit embedded joint column and the embedded joint beam section to a design position;
step four, binding the first wall unit steel reinforcement framework according to design requirements;
and fifthly, connecting the first wall unit joint column construction ribs around the first wall unit embedded joint column.
And sixthly, erecting a template of the first wall unit, and processing a horizontal key groove or a rough surface on one or more of the upper, lower, left and right four surfaces.
And seventhly, pouring concrete of the first wall unit.
And step eight, after pouring, molding and maintaining, demolding to complete the prefabricating process of the first wall unit.
Prefabricating the second wall unit:
the method comprises the following steps of firstly, manufacturing a second wall unit embedded beam, a second wall unit embedded joint column and correspondingly connecting a second wall unit shear-resistant stud and a second wall unit auxiliary steel bar.
And step two, manufacturing a pre-buried vertical joint column section.
And thirdly, correspondingly connecting the second wall unit embedded beam, the second wall unit embedded joint column and the embedded vertical joint column section at the designed position.
And fourthly, binding the steel reinforcement framework of the second wall unit.
And fifthly, connecting second wall unit joint column construction ribs around the second wall unit embedded joint column.
And sixthly, erecting a template of the second wall unit, and processing a horizontal key groove or a rough surface on one or more of the upper, lower, left and right four surfaces.
And seventhly, pouring concrete of the second wall unit.
And step eight, after pouring, molding and maintaining, demolding to complete the prefabricating process of the second wall unit.
And field assembly process:
firstly, the prefabricated first wall unit and the prefabricated second wall unit are transported to a construction site, and the site construction process is started.
And step two, correspondingly connecting the embedded joint short beam of the embedded vertical joint column section with the embedded joint beam of the embedded joint beam section, and correspondingly connecting the embedded vertical joint column section anchor ring rib of the embedded vertical joint column section with the horizontal joint anchor ring rib.
And step three, binding the vertical steel bars of the joint post-pouring belt and the hooping of the joint post-pouring belt.
And fourthly, erecting a template of the seam post-pouring belt.
And fifthly, pouring the joint post-pouring belt concrete of the joint post-pouring belt.
And step six, maintaining to complete the field assembly construction of the single-layer T-shaped rigid joint coupled wall.
The field assembly process of the multi-layer first wall unit and/or the second wall unit comprises the following steps:
step one, hoisting the upper layer first wall unit to be in butt joint with the lower layer first wall unit, and connecting the embedded joint columns of the two layers of first wall units in a corresponding spot welding mode.
And step two, removing the lifting hook, and connecting the embedded joint columns of the first wall units corresponding to the two layers of the first wall units in a mixed manner through high-strength bolts or bolt welding.
And step three, arranging a steel reinforcement framework at the upper joint part and the lower joint part of the double-layer first wall unit, and erecting a concrete pouring template at the upper joint part and the lower joint part.
And step four, pouring concrete at the upper joint part and the lower joint part.
Step five, maintaining, completing the field assembly construction of the double-layer first wall unit, wherein the construction of the double-layer second wall unit is similar to that of the first wall unit: and correspondingly connecting the embedded vertical joint column of the double-layer second wall unit with the embedded joint column of the second wall unit and pouring the embedded vertical joint column and the embedded joint column of the second wall unit in concrete to complete butt joint.
And step six, repeating the step one to the step five to complete the on-site assembly construction of the multilayer T-shaped rigid joint coupled wall.
Compared with the prior art, the invention has the following characteristics and beneficial effects:
based on a finite element theory, the invention establishes a finite element model to carry out mechanical analysis on the T-shaped rigid joint coupled wall system with the joint steel beam section, verifies the reliability of the node, and forms the T-shaped rigid joint coupled wall by embedding the joint steel beam section in the wall unit and matching with the embedded joint short beam in the embedded vertical joint column section to be in butt joint pouring in the post-joint pouring zone.
First, the connection relationship is reliable: t shape rigidity joint continuous limb wall relies on pre-buried joint beam section in first wall unit and connects the on-the-spot assembled connection that the combination of pre-buried vertical joint column segment and the seam post-cast concrete in the second wall unit realized, the combination of girder steel and concrete for the concrete part of vertical joint department is under effectual restraint, thereby reaches to connect reliable purpose.
Secondly, improve the intensity and the ductility of node, joint strength is high: the pre-buried joint beam sections are arranged at the layer-upon-layer high positions of the structure, so that the ductility of the vertical joint under the earthquake action is increased; in addition, cast-in-place concrete joint wall is cut apart into a plurality of parts to pre-buried joint beam section, there are pre-buried vertical joint column section and pre-buried vertical joint column section anchor ring muscle to the pressurized production three-dimensional restraint effect of concrete again, make the concrete of junction be in under the restraint of effectual boundary, the compressive strength of concrete has been increased, can guarantee that node strength is higher than component intensity, the intensity and the ductility of vertical joint have been increased, satisfy the requirement of the measure of "strong node, weak component" of antidetonation structure.
And finally, construction is facilitated: compared with the cast-in-place concrete shear wall, the method has the advantages that factory manufacturing and field installation are carried out simultaneously, and the problem of large field wet operation amount of the cast-in-place concrete shear wall is solved. Compared with the existing general fabricated shear wall, when the wall body assembly units are fixedly mounted, the pre-buried joint columns of the upper layer wall body assembly unit and the lower layer wall body assembly unit are connected, and the pre-buried joint beam sections of the adjacent wall body assembly units on the same layer are connected, so that the stability of the wall body assembly units can be met, the temporary supporting procedure is omitted, and the construction process is optimized; meanwhile, the plane of the cast-in-place concrete joint wall at the connecting node position is in a straight line shape, compared with the T-shaped joint required by the conventional 'assembly concrete structure technical code', the cast-in-place concrete joint wall is more convenient for erecting a template on site, and the arrangement of the embedded vertical joint column section and the embedded joint column saves the working procedures of installing and dismantling temporary supports of wall body assembly units.
In conclusion, the joint connection is safe and reliable, the joint connection has good anti-seismic performance, and meanwhile, the synchronous implementation of factory prefabrication and field installation is realized: the prefabricated wall body assembly units are prefabricated in a factory and spliced and installed on the site, so that the structural members are manufactured and installed at the same time, the construction speed of the main body structure is improved, the guarantee is provided for the scheduled completion of construction projects, the wet workload of a concrete site is reduced due to the assembly and combination of the structure in the construction process, the using amount of templates and temporary supports is reduced, the generation of construction waste is reduced, the requirements on material saving and environment protection are met, and the purpose of green construction is achieved.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a first wall unit of the present invention.
Fig. 2 is a sectional view a-a of fig. 1.
Fig. 3 is a schematic structural view of a second wall unit of the present invention.
Fig. 4 is a sectional view B-B of fig. 3.
Fig. 5 is a schematic structural view of the present invention.
Fig. 6 is a cross-sectional view C-C of fig. 5.
Reference numerals are as follows: 1-a first wall unit, 10-a first wall unit concrete wall, 11-a first wall unit embedded beam, 12-a first wall unit embedded joint column, 13-a first wall unit joint column construction bar, 14-a first wall unit key slot, 15-a first wall unit shear stud, 16-a first wall unit steel bar framework, 17-a first wall unit auxiliary steel bar, 18-a first wall unit steel bar connector, 19-a first wall unit stiffening plate;
2-a second wall unit, 20-a second wall unit concrete wall, 21-a second wall unit embedded beam, 22-a second wall unit embedded joint column, 23-a second wall unit joint column construction rib, 24-a second wall unit key groove, 25-a second wall unit shear-resistant stud, 26-a second wall unit steel bar framework, 27-a second wall unit auxiliary steel bar and 28-a second wall unit steel bar connector;
3-joint post-pouring belt, 30-joint post-pouring belt concrete, 31-joint post-pouring belt vertical steel bar and 32-joint post-pouring belt hoop steel bar;
4, a floor slab;
5-pre-buried joint beam section, 51-pre-buried joint beam, 52-pre-buried joint beam section auxiliary steel bars, 53-pre-buried joint beam section steel bar connector, 54-pre-buried joint beam section shear stud and 55-pre-buried joint beam section stiffening plate;
6-horizontal seam anchor ring ribs;
7-pre-buried vertical joint column section, 71-pre-buried vertical joint column, 72-pre-buried joint short beam, 73-pre-buried vertical joint column section anchor ring rib and 74-pre-buried vertical joint column section shear stud.
Detailed Description
The T-shaped rigid joint coupled wall with the embedded joint beam sections comprises a first wall unit and a second wall unit which are mutually and vertically connected to form a T shape, wherein the first wall unit and the second wall unit are both prefabricated components, the concrete strength grade is not less than C30 and not more than C60, the height of the wall body is about the floor height minus the thickness of a floor slab, the wall body and the floor slab are connected through a joint post-cast strip, the joint post-cast strip 3 comprises joint post-cast strip concrete 30, joint post-cast strip vertical steel bars 31 and joint post-cast strip hoop steel bars 32, the joint post-cast strip concrete strength grade is two grades or more than the concrete strength grade of the first wall unit and the second wall unit, and the concrete strength grade of the joint post-cast strip concrete is higher than the concrete strength grade of the first wall unit and the second wall unit.
Referring to fig. 1 and 2, the first wall unit includes a first wall unit concrete wall and a first wall unit steel reinforcement framework located inside the first wall unit concrete wall, a first wall unit pre-embedded joint column is pre-embedded in the middle of the upper side and the lower side of the first wall unit concrete wall, a first wall unit pre-embedded joint beam section is pre-embedded in the left side or the right side of the first wall unit concrete wall, the outer end portions of the first wall unit pre-embedded joint column and the pre-embedded joint beam section both exceed the side edge of the first wall unit concrete wall, the pre-embedded joint beam section 5 is located on the upper portion of the first wall unit concrete wall 10, and a group of horizontal joint anchor ring ribs 6 is vertically connected to the first wall unit concrete wall 10 below the pre-embedded joint beam section 5.
One or more of the upper, lower, left, right, and four sides of the first wall unit concrete wall 10 is a rough surface or is provided with a first wall unit key groove 14 in the horizontal direction.
The upper side and the lower side of the first wall unit concrete wall body are symmetrically connected with two first wall unit embedded joint columns, the two first wall unit embedded joint columns on the same side are uniformly distributed at intervals, the length of each first wall unit embedded joint column is about 40cm, and the length range of the outer end part of each first wall unit embedded joint column exceeding the side edge of the first wall unit concrete wall body is 5 cm-10 cm and is about half of the thickness of a floor slab.
And the embedded joint column of the first wall unit is connected with a shear-resistant stud of the first wall unit.
The first wall unit embedded beam 11 is H-shaped steel or combined I-shaped steel, a first wall unit stiffening plate is vertically welded between two flanges of the first wall unit embedded beam, and the first wall unit stiffening plate does not exceed the edge of the first wall unit concrete wall 10.
The first wall unit steel reinforcement framework 16 comprises a steel reinforcement net rack formed by horizontal steel bars, vertical steel bars and tie bars between the horizontal steel bars and the vertical steel bars and a first wall unit joint column construction bar 13 arranged around the first wall unit embedded joint column 12.
The first wall unit 1 further comprises a first wall unit embedded beam 11, first wall unit shear studs 15 connected to the first wall unit embedded beam 11, and first wall unit auxiliary steel bars 17 vertically connected to the lower surface of the first wall unit embedded beam 11 through a first wall unit steel bar connector 18.
The first wall unit embedded beam 11 is embedded in the upper side surface of the first wall unit concrete wall 10 symmetrically to the embedded joint beam section 5, the length range of the outer end part of the first wall unit embedded beam 11, which exceeds the side edge of the first wall unit concrete wall 10, is 5-10 cm, and the inner end part of the first wall unit embedded beam is not more than one third of the length of the first wall unit concrete wall 10; the upper surface of the first wall unit embedded beam 11 is flush with the edge of the first wall unit concrete wall 10, and the end of the first wall unit shear-resistant stud connected to the upper surface of the first wall unit embedded beam 11 exceeds the edge of the first wall unit concrete wall 10.
The upper part and the middle part of the concrete wall body of the first wall unit are respectively embedded with an embedded joint beam section; or the upper part of the concrete wall body of the first wall unit is pre-embedded with an embedded joint beam section, and a group of horizontal joint anchor ring ribs are connected to the upper part of the concrete wall body of the first wall unit and the lower part of the embedded joint beam section.
The embedded joint beam section 5 comprises an embedded joint beam 51 embedded along the length direction of the first wall unit concrete wall 10, embedded joint beam section shear studs 54 connected to the embedded joint beam 51, and embedded joint beam section auxiliary steel bars 52 vertically connected to the lower surface of the embedded joint beam 51 through embedded joint beam section steel bar connectors 53.
The length range of the outer end part of the embedded joint beam 51 exceeding the side edge of the first wall unit concrete wall 10 is 5 cm-10 cm, and the length of the inner end part of the embedded joint beam does not exceed one third of the length of the first wall unit concrete wall 10; the upper surface of the pre-buried joint beam 51 is flush with the edge of the first wall unit concrete wall 10, and the end of the shear-resistant stud of the pre-buried joint beam segment connected to the upper surface of the pre-buried joint beam 51 exceeds the edge of the first wall unit concrete wall 10.
The embedded joint beam 51 is H-shaped steel or combined I-shaped steel, the strength grade is not lower than Q235 and not higher than Q420, an embedded joint beam section stiffening plate 55 is vertically welded between two flanges of the embedded joint beam 51, and the embedded joint beam section stiffening plate 55 does not exceed the edge of the first wall unit concrete wall 10.
Referring to fig. 3 and 4, the second wall unit includes a second wall unit concrete wall and a second wall unit steel reinforcement framework located inside the second wall unit concrete wall, the middle parts of the upper and lower sides of the second wall unit are embedded with second wall unit embedded joint columns correspondingly, the middle shaft of the second wall unit is embedded with embedded vertical joint column sections, and the outer end parts of the second wall unit embedded joint columns and the embedded vertical joint column sections both exceed the side edges of the second wall unit concrete wall. One or more of the upper, lower, left, right, and four sides of the second wall unit concrete wall 20 is a rough surface or is horizontally provided with a second wall unit key groove 24.
The middle parts of the upper side and the lower side of the second wall unit 2, which are symmetrical to the embedded vertical joint column sections 7, are correspondingly embedded with second wall unit embedded joint columns 22, the lengths of the second wall unit embedded joint columns are about 40cm, and the length range of the outer end parts of the second wall unit embedded joint columns, which exceed the side edges of the second wall unit concrete wall bodies, is 5-10 cm and is about half of the thickness of a floor slab.
And the second wall unit shear-resistant stud is connected to the second wall unit pre-embedded joint column.
The left side and the right side of the second wall unit 2 are symmetrically connected with a second wall unit embedded beam 21, a second wall unit shear-resistant stud 25 connected to the second wall unit embedded beam 21, and a second wall unit auxiliary steel bar 27 vertically connected to the lower surface of the second wall unit embedded beam 21 through a second wall unit steel bar connector 28.
The second wall unit embedded beam 21 is embedded at the upper part of the second wall unit concrete wall 20, the length range of the outer end part of the second wall unit embedded beam 21 exceeding the side edge of the second wall unit concrete wall 20 is 5-10 cm, and the inner end part of the second wall unit embedded beam is not more than one third of the length of the second wall unit concrete wall 20; the upper surface of the second wall unit embedded beam 21 is flush with the edge of the second wall unit concrete wall 20, and the end part of the first wall unit shear-resistant stud connected to the upper surface of the second wall unit embedded beam 21 exceeds the edge of the second wall unit concrete wall 20.
The second wall unit embedded beam 21 is H-shaped steel or combined I-shaped steel, the strength grade is not lower than Q235 and not higher than Q420, a second wall unit stiffening plate is vertically welded between two flanges of the second wall unit embedded beam, and the second wall unit stiffening plate is not larger than the edge of a second wall unit concrete wall body.
The second wall unit steel reinforcement framework 26 comprises a steel reinforcement net rack formed by horizontal steel bars, vertical steel bars and tie bars between the horizontal steel bars and the vertical steel bars and second wall unit joint column construction bars 23 arranged around the second wall unit embedded joint column 22.
The embedded vertical joint column section 7 comprises an embedded vertical joint column 71 erected at the end part of the second wall unit concrete wall body 20 and an embedded joint short beam 72 connected to the embedded vertical joint column 71 along the width direction of the second wall unit concrete wall body.
The length range of the two end parts of the embedded vertical joint column 71 exceeding the side edge of the second wall unit concrete wall body 20 is 5-10 cm.
The length range of the outer end part of the embedded joint short beam 72 exceeding the side edge of the second wall unit concrete wall 20 is 5 cm-10 cm.
The embedded joint short beam 72 and the embedded joint beam 51 are in butt joint and poured inside the joint post-pouring belt 3, wherein the embedded joint short beam 72 is relative to the embedded joint beam 51, and compared with the embedded joint beam 51 in length, the embedded joint short beam 72 is shorter than the embedded joint beam 51.
The embedded vertical joint column section 7 further comprises embedded vertical joint column section shear studs 74 connected to the embedded vertical joint column 71 and the embedded joint short beam 72, and embedded vertical joint column section anchor ring ribs 73 arranged around the embedded vertical joint column 71 and the embedded joint short beam 72.
The length range of the embedded vertical joint column section anchor ring rib 73 exceeding the side edge of the second wall unit concrete wall body is 4-10 cm; and the embedded vertical joint column section anchor ring rib 73 and the horizontal joint anchor ring rib 6 are correspondingly connected and poured inside the joint post-pouring belt 3.
The first wall unit embedded joint column and the second wall unit embedded joint column are H-shaped steel or combined I-shaped steel, and the strength grade is not lower than Q235 and not higher than Q420.
The embedded vertical joint column is cross-shaped steel, the embedded joint short beam is H-shaped steel, combined I-shaped steel or a steel plate, and the strength grade is not lower than Q235 and not higher than Q420.
Between the single-layer T-shaped rigid joint coupled wall, the embedded joint beam of the first wall unit and the embedded joint short beam of the second wall unit are correspondingly connected in a mixed mode through high-strength bolts or bolt welding and poured in the post-joint cast-in-place concrete.
Between the multilayer T-shaped rigid joint coupled walls, the embedded joint columns of the first wall units on one layer and the embedded joint columns of the first wall units on the previous layer are correspondingly and mixedly connected through high-strength bolts or bolt welding and are poured in the concrete, and the embedded vertical joint columns of the one layer and the embedded vertical joint columns of the previous layer are correspondingly and mixedly connected through high-strength bolts or bolt welding and are poured in the concrete.
And a floor slab is connected between the two layers of T-shaped rigid joint coupled walls, and the floor slab is a cast-in-place concrete floor slab or an assembled integral floor slab.
The construction method of the T-shaped rigid joint coupled wall with the pre-embedded joint beam sections comprises the prefabricating process and the field assembly process of the first wall unit and the second wall unit, and comprises the following specific steps:
prefabricating the first wall unit:
firstly, manufacturing a first wall unit embedded beam 11 and a first wall unit embedded joint column 12 and correspondingly connecting a first wall unit shear stud 15 and a first wall unit auxiliary steel bar 17.
And step two, manufacturing the pre-buried joint beam section 5.
And step three, correspondingly connecting the first wall unit embedded beam 11, the first wall unit embedded joint column 12 and the embedded joint beam section 5 on a design position.
And step four, binding the first wall unit steel reinforcement framework 16 according to design requirements.
And step five, connecting first wall unit joint column construction ribs 13 around the first wall unit embedded joint column 12.
And sixthly, erecting a template of the first wall unit 1, and processing a horizontal key groove or a rough surface on one or more of the upper, lower, left and right four surfaces.
And step seven, pouring concrete of the first wall unit 1.
And step eight, demolding after pouring molding and maintenance, and completing the prefabricating process of the first wall unit 1.
Prefabrication of the second wall element 2:
firstly, manufacturing a second wall unit embedded beam 21 and a second wall unit embedded joint column 22, and correspondingly connecting a second wall unit shear stud 25 and a second wall unit auxiliary steel bar 27.
And step two, manufacturing the pre-buried vertical joint column section 7.
And thirdly, correspondingly connecting the second wall unit embedded beam 21, the second wall unit embedded joint column 22 and the embedded vertical joint column section 7 to a design position.
And step four, binding the steel reinforcement framework 26 of the second wall unit.
And step five, connecting second wall unit joint column construction ribs 23 around the second wall unit pre-buried joint column 22.
And sixthly, erecting a template of the second wall unit 2, and processing a horizontal key groove or a rough surface on one or more of the upper, lower, left and right four surfaces.
And step seven, pouring concrete of the second wall unit 2.
And step eight, after pouring, molding and curing, demolding to complete the prefabricating process of the second wall unit 2.
And field assembly process:
firstly, the prefabricated first wall unit 1 and the prefabricated second wall unit 2 are transported to a construction site, and the site construction process is started.
And step two, correspondingly and mixedly connecting the embedded joint short beam 72 of the embedded vertical joint column section 7 and the embedded joint beam 51 of the embedded joint beam section 5 through high-strength bolts or bolt welding, and correspondingly connecting the embedded vertical joint column section anchor ring rib 73 of the embedded vertical joint column section 7 and the horizontal joint anchor ring rib 6.
And step three, binding the vertical steel bars 31 of the joint post-pouring belt and the hooping 32 of the joint post-pouring belt.
And fourthly, erecting a template of the seam post-pouring belt 3.
And step five, pouring the joint post-pouring belt concrete 30 of the joint post-pouring belt 3.
And step six, maintaining to complete the field assembly construction of the single-layer T-shaped rigid joint coupled wall.
A field assembly process of the multi-layer first wall unit and/or the second wall unit:
step one, hoisting the upper layer first wall unit to be in butt joint with the lower layer first wall unit, and connecting the embedded joint columns of the two layers of the first wall units in a corresponding spot welding manner.
And step two, removing the lifting hooks, and connecting the embedded joint columns of the first wall units corresponding to the two layers of the first wall units in a mixed mode through high-strength bolts or bolt welding.
And step three, arranging steel reinforcement frameworks at the upper joint part and the lower joint part of the double-layer first wall unit, and erecting concrete pouring formworks at the upper joint part and the lower joint part.
And step four, pouring concrete at the upper joint part and the lower joint part.
Step five, maintaining, completing the field assembly construction of the double-layer first wall unit, wherein the construction of the double-layer second wall unit is similar to that of the first wall unit: and correspondingly connecting the embedded vertical joint column of the double-layer second wall unit with the embedded joint column of the second wall unit and pouring the embedded vertical joint column of the double-layer second wall unit in concrete to complete butt joint.
And step six, repeating the step one to the step five to complete the on-site assembly construction of the multilayer T-shaped rigid joint coupled wall.
And (3) constructing the floor slab 4 while constructing the double-layer T-shaped rigid joint coupled wall.
Claims (10)
1. The utility model provides a T shape rigidity joint even limb wall with pre-buried joint beam section, links together, forms first wall unit (1) and second wall unit (2) of T shape, its characterized in that including mutually perpendicular: the first wall unit (1) and the second wall unit (2) are both prefabricated parts and are connected through a seam post-pouring belt (3);
the first wall unit (1) comprises a first wall unit concrete wall body (10) and a first wall unit steel bar framework (16) located inside the first wall unit concrete wall body, wherein first wall unit embedded joint columns (12) are correspondingly embedded in the middle parts of the upper side and the lower side of the first wall unit concrete wall body (10), embedded joint beam sections (5) are embedded in the left side or the right side of the first wall unit concrete wall body (10), the outer end parts of the first wall unit embedded joint columns (12) and the embedded joint beam sections (5) exceed the side edge of the first wall unit concrete wall body (10), the embedded joint beam sections (5) are located on the upper part of the first wall unit concrete wall body (10), and a group of horizontal joint anchor ring ribs (6) are vertically connected to the first wall unit concrete wall body (10) below the embedded joint beam sections (5);
the second wall unit (2) comprises a second wall unit concrete wall body (20) and a second wall unit steel reinforcement framework (26) located inside the second wall unit concrete wall body, a pre-embedded vertical joint column section (7) is pre-embedded in the middle shaft position of the second wall unit (2), the outer end parts of the pre-embedded joint column (22) and the pre-embedded vertical joint column section (7) of the second wall unit exceed the side edge of the second wall unit concrete wall body (20), and the pre-embedded joint columns (22) of the second wall unit are correspondingly pre-embedded in the middle parts of the upper side and the lower side of the second wall unit (2) and are symmetrical to the pre-embedded vertical joint column section (7);
and an embedded joint short beam (72) of the embedded vertical joint column section (7) and an embedded joint beam (51) of the embedded joint beam section (5) are in butt joint and poured inside the joint post-pouring belt (3).
2. The T-shaped rigid joint coupled wall with the embedded joint beam sections as claimed in claim 1, characterized in that: the embedded joint beam section (5) comprises an embedded joint beam (51) embedded along the length direction of the first wall unit concrete wall (10), embedded joint beam section shear studs (54) connected to the embedded joint beam (51), and embedded joint beam section auxiliary steel bars (52) vertically connected to the lower surface of the embedded joint beam (51) through an embedded joint beam section steel bar connector (53);
the length range of the outer end part of the embedded joint beam (51) exceeding the side edge of the first wall unit concrete wall body (10) is 5-10 cm.
3. The T-shaped rigid jointed continuous wall with the embedded jointed beam sections as claimed in claim 2, wherein: the embedded vertical joint column section (7) comprises an embedded vertical joint column (71) which is vertically arranged at the end part of the second wall unit concrete wall body (20) and an embedded joint short beam (72) which is connected to the embedded vertical joint column (71) along the width direction of the second wall unit concrete wall body;
the length range of the outer end part of the embedded vertical joint column (71) exceeding the side edge of the second wall unit concrete wall body (20) is 5-10 cm;
the length range of the outer end part of the embedded joint short beam (72) exceeding the side edge of the concrete wall body (20) of the second wall unit is 5-10 cm.
4. The T-shaped rigid joint coupled wall with the embedded joint beam sections as claimed in claim 3, wherein: the embedded vertical joint column section (7) further comprises embedded vertical joint column section shear-resistant studs (74) connected to the embedded vertical joint column (71) and the embedded joint short beam (72) and embedded vertical joint column section anchor ring ribs (73) arranged around the embedded vertical joint column (71) and the embedded joint short beam (72);
and the embedded vertical joint column section anchor ring rib (73) and the horizontal joint anchor ring rib (6) are correspondingly connected and poured inside the joint post-pouring belt (3).
5. The T-shaped rigid jointed continuous wall with the embedded jointed beam sections as claimed in claim 1, wherein: the first wall unit (1) further comprises a first wall unit embedded beam (11), first wall unit shear-resistant studs (15) connected to the first wall unit embedded beam (11), and first wall unit auxiliary steel bars (17) vertically connected to the lower surface of the first wall unit embedded beam (11) through a first wall unit steel bar connector (18);
the first wall unit embedded beam (11) is symmetrically embedded in the upper side face of the first wall unit concrete wall body (10) in the embedded joint beam section (5), and the length range of the outer end part of the first wall unit embedded beam (11) exceeding the side edge of the first wall unit concrete wall body (10) is 5-10 cm.
6. The T-shaped rigid joint coupled wall with the embedded joint beam sections as claimed in claim 1, characterized in that: first wall unit steel framework (16) include by horizontal reinforcement, vertical reinforcing bar and drawknot muscle between the two the steel bar rack that constitutes and set up at first wall unit pre-buried seam post (12) first wall unit seam post constructional muscle (13) all around.
7. The T-shaped rigid jointed continuous wall with the embedded jointed beam sections as claimed in claim 1, wherein: the left side and the right side of the second wall unit (2) are symmetrically connected with a second wall unit embedded beam (21), second wall unit shear-resistant studs (25) connected to the second wall unit embedded beam (21), and second wall unit auxiliary steel bars (27) vertically connected to the lower surface of the second wall unit embedded beam (21) through a second wall unit steel bar connector (28);
the second wall unit embedded beam (21) is embedded at the upper part of the second wall unit concrete wall body (20), and the length range of the outer end part of the second wall unit embedded beam (21) exceeding the side edge of the second wall unit concrete wall body (20) is 5-10 cm.
8. The T-shaped rigid jointed continuous wall with the embedded jointed beam sections as claimed in claim 1, wherein: second wall unit steel framework (26) include by horizontal reinforcement, vertical reinforcing bar and drawknot muscle between the two the steel bar rack that constitutes and set up second wall unit joint post structure muscle (23) around second wall unit pre-buried joint post (22).
9. The T-shaped rigid joint coupled wall with the embedded joint beam sections as claimed in claim 1, characterized in that: one or more of the upper, lower, left and right four surfaces of the first wall unit concrete wall body (10) are rough surfaces or are provided with first wall unit key grooves (14) in the horizontal direction;
one or more of the upper, lower, left and right four surfaces of the second wall unit concrete wall body (20) is a rough surface or is provided with a second wall unit key groove (24) in the horizontal direction.
10. A construction method of a T-shaped rigid jointed coupled wall with embedded jointed beam sections according to any one of claims 1 to 9, comprising a prefabrication process and a field assembly process of a first wall unit (1) and a second wall unit (2), and being characterized by comprising the following concrete steps:
prefabrication of a first wall element (1):
firstly, manufacturing a first wall unit embedded beam (11) and a first wall unit embedded joint column (12) and correspondingly connecting a first wall unit shear-resistant stud (15) and a first wall unit auxiliary steel bar (17);
step two, manufacturing an embedded joint beam section (5);
correspondingly connecting a first wall unit embedded beam (11), a first wall unit embedded joint column (12) and an embedded joint beam section (5) to a design position;
step four, binding a first wall unit steel reinforcement framework (16) according to design requirements;
connecting first wall unit joint column construction ribs (13) around the first wall unit pre-buried joint column (12);
supporting a template of the first wall unit (1), and performing horizontal key groove or rough surface treatment on one or more of the upper, lower, left and right four surfaces;
seventhly, pouring concrete of the first wall unit (1);
step eight, after pouring, molding and curing, demolding to complete the prefabrication process of the first wall unit (1);
prefabricating the second wall unit (2):
firstly, manufacturing a second wall unit embedded beam (21) and a second wall unit embedded joint column (22) and correspondingly connecting a second wall unit shear-resistant stud (25) and a second wall unit auxiliary steel bar (27);
secondly, manufacturing a pre-buried vertical joint column section (7);
correspondingly connecting a second wall unit embedded beam (21), a second wall unit embedded joint column (22) and an embedded vertical joint column section (7) to a design position;
fourthly, binding a steel reinforcement framework (26) of the second wall unit;
connecting second wall unit joint column construction ribs (23) around the second wall unit pre-buried joint column (22);
supporting a template of the second wall unit (2), and performing horizontal key groove or rough surface treatment on one or more of the upper, lower, left and right four surfaces;
step seven, pouring concrete of the second wall unit (2);
step eight, after pouring, molding and curing, demolding to complete the prefabrication process of the second wall unit (2);
and field assembly process:
firstly, transporting a prefabricated first wall unit (1) and a prefabricated second wall unit (2) to a construction site, and starting a site construction process;
correspondingly connecting an embedded joint short beam (72) of the embedded vertical joint column section (7) with an embedded joint beam (51) of the embedded joint beam section (5), and correspondingly connecting an embedded vertical joint column section anchor ring rib (73) of the embedded vertical joint column section (7) with a horizontal joint anchor ring rib (6);
binding a vertical steel bar (31) of the joint post-cast strip and a stirrup (32) of the joint post-cast strip;
fourthly, erecting a template of the seam post-pouring belt (3);
pouring joint post-pouring belt concrete (30) of the joint post-pouring belt (3);
and step six, maintaining to complete the field assembly construction of the single-layer T-shaped rigid joint coupled wall.
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| CA2817332C (en) * | 2012-06-06 | 2015-07-21 | William R. Hilliard, Sr. | Interlocking web for insulated concrete forms |
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