CN112302162B - Fabricated chord-supported concrete transfer floor structure and construction method thereof - Google Patents
Fabricated chord-supported concrete transfer floor structure and construction method thereof Download PDFInfo
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- CN112302162B CN112302162B CN202011195566.6A CN202011195566A CN112302162B CN 112302162 B CN112302162 B CN 112302162B CN 202011195566 A CN202011195566 A CN 202011195566A CN 112302162 B CN112302162 B CN 112302162B
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- 238000010276 construction Methods 0.000 title claims abstract description 16
- 238000012546 transfer Methods 0.000 title claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims abstract description 40
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 9
- 238000005452 bending Methods 0.000 abstract description 2
- 238000010008 shearing Methods 0.000 abstract description 2
- 238000005266 casting Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4114—Elements with sockets
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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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
Abstract
The invention provides an assembled chord support concrete transfer floor structure and a construction method thereof, belonging to the field of constructional engineering, wherein the assembled chord support concrete transfer floor structure comprises: a frame support mechanism; the concrete member is arranged at the top of the frame supporting mechanism and is connected with the concrete member; the string support mechanism is arranged on the concrete member and used for force transmission; the string supporting mechanism includes: the two ends of the stay cable are fixed on the concrete member; the top of the stay bar, two stay bars all is fixed on the concrete member, and the bottom all butts on the cable to make the cable tensioning and make the cable be "︺" type structure. The conversion layer structure integrates the chord support mechanism, can directly transfer the vertical load of the upper part to the vertical bearing member, and the chord support mechanism and the frame support mechanism bear the vertical load together, thereby providing a double force transfer way for the assembled chord support concrete conversion layer structure, reducing the bending moment and the shearing force born by the frame support mechanism and ensuring the force transfer effectiveness of the conversion layer structure.
Description
Technical Field
The invention belongs to the field of constructional engineering, particularly relates to an assembled chord support concrete transfer floor structure, and further relates to a construction method of the assembled chord support concrete transfer floor structure.
Background
The fabricated building is a building which is fabricated by transferring a large amount of field operation work in the traditional construction mode to a factory, transporting building components and accessories (such as floor slabs, wall slabs, stairs, balconies and the like) processed and manufactured in the factory to a building construction site, and assembling and installing the components and the accessories on the site in a reliable connection mode. Because of adopting standardized design, factory production, assembly construction, information management and intelligent application, the assembly type building becomes a representative of modern industrial production mode. At present, as the assembly type building is brought into the first, third and fifth movement scheme of the country, the assembly type building is further developed vigorously, and the assembly type residential building mainly based on the common high-rise shear wall structure is comprehensively and rapidly applied.
In the process of implementing the invention, the inventor finds that the existing fabricated building has at least the following defects:
the existing fabricated structure mainly solves the design and construction problems of a standard shear wall structure (namely, a vertical through floor shear wall), but in the existing building with complex body type and diversified functional requirements, a conversion layer is generally arranged to realize the conversion of upper and lower layer structure types, and the existing fabricated structure has no particularly effective fabricated construction scheme for a shear wall structure system with the conversion layer structure.
Disclosure of Invention
Based on the background problem, the invention aims to provide an assembled type chord-supported concrete conversion layer structure, wherein a chord-supported system is fused in the assembled type conversion layer structure, the vertical load on the upper part is effectively and reasonably directly transmitted to a vertical bearing component through the chord-supported system, and the chord-supported system and a frame-supported beam bear the vertical load together, so that a double force transmission way is provided for the assembled type chord-supported concrete conversion layer structure, the internal force of the frame-supported beam is greatly reduced, and the risk of the frame-supported beam damage is reduced; the invention also aims to provide a construction method of the fabricated chord-supported concrete conversion layer structure.
In order to achieve the above object, in one aspect, the embodiment of the present invention provides a technical solution:
assembled string props up concrete conversion layer structure, includes:
a frame support mechanism;
the concrete member is arranged at the top of the frame supporting mechanism and is connected with the frame supporting mechanism;
and the string support mechanism is arranged on the concrete member and used for transferring force.
In one embodiment, the frame supporting mechanism is composed of two frame supporting columns which are vertically arranged and a frame supporting beam which is connected to the tops of the two frame supporting columns; two the top of frame pillar all is equipped with the connecting piece, it has a plurality of connecting hole to reserve on the frame strutbeam.
In one embodiment, the concrete member is of an E-shaped structure integrally and consists of two groups of end walls which are vertically arranged, a middle wall which is arranged between the two groups of end walls and a transverse wall which is connected to the tops of the end walls and the middle wall; and the bottom ends of the two groups of end walls are respectively provided with a lower connecting piece matched with the upper connecting piece, and the bottom end of the middle wall is provided with a connecting rib used for penetrating through the connecting hole for fixing.
Preferably, the joints of the upper connecting pieces and the lower connecting pieces form a lower post-pouring area of the conversion layer through concrete pouring.
In one embodiment, the upper connecting piece and the lower connecting piece are both steel plates, the upper connecting piece is formed by an I-shaped steel plate which is embedded in the frame pillar and extends out of the top end of the frame pillar, and the upper connecting piece and the lower connecting piece are connected through bolts; the connecting ribs penetrate through the end parts of the connecting holes and are fixed through the fixing sleeves.
In one embodiment, the string support mechanism comprises:
the pull cables are arranged in pairs, two groups of the pull cables in pairs are respectively arranged on two sides of the concrete member, and two ends of each pull cable are fixed on the concrete member;
the vaulting pole sets up in pairs, and is two sets of in pairs the vaulting pole is established respectively in the both sides of concrete member, and every group all is provided with two vaulting poles, and the top of two vaulting poles is all fixed on the concrete member, and the equal butt in bottom is on the cable to make the cable tensioning and make the cable be "︺" type structure.
Preferably, the surface of the concrete member is provided with a cable sleeve for the stay cable to pass through; and angle steel used for fixing the end parts of the stay cable and the stay bar is arranged on the upper part of the surface of the concrete member.
Preferably, the post-cast area of the chord support mechanism is formed by casting concrete at the position of the concrete member on which the cable sleeve and the angle steel are arranged.
On the other hand, the embodiment of the invention also provides a construction method of the assembled chord-supported concrete conversion layer structure, which comprises the following steps:
(1) installing a frame support mechanism;
(2) hoisting the concrete member to the top of the frame support mechanism, connecting the concrete member with the frame support mechanism, and pouring concrete at the joint of the concrete member and the frame support mechanism to form a post-pouring area at the lower part of the conversion layer;
(3) sequentially mounting upper floor members layer by layer above the concrete members;
(4) after the main structure of the upper floor is finished, erecting a string support mechanism on the concrete member;
(5) and forming a post-cast area of the chord support mechanism by pouring concrete at the connecting part of the chord support mechanism and the concrete member.
In one embodiment, when the frame support mechanism is installed, a temporary support is arranged on the lower side of the middle part of the frame support mechanism, and the temporary support is removed after the chord support mechanism is arranged.
Compared with the prior art, the invention has the following effects:
1. the assembled chord-supported concrete conversion layer structure comprises the chord-supported mechanism, the chord-supported mechanism can directly transmit the vertical load of the upper part to the vertical bearing member, the chord-supported mechanism and the frame-supported mechanism share the vertical load, a double force transmission way is provided for the assembled chord-supported concrete conversion layer structure, the bending moment and the shearing force borne by the frame-supported mechanism are greatly reduced, and the force transmission effectiveness of the conversion layer structure is ensured.
2. According to the invention, the upper connecting piece and the lower connecting piece are connected through the bolts, the end parts of the connecting ribs penetrating through the connecting holes are fixed through the fixing sleeves, and finally concrete is poured at the connecting positions of the upper connecting piece and the lower connecting piece, so that the connecting mode is reliable, and the connecting strength of the concrete member and the frame support mechanism is ensured.
3. The string support mechanism comprises a stay cable and a stay bar, wherein the stay cable is tensioned through the stay bar; the surface of concrete member is equipped with the cable cover that supplies the cable to pass, and can form the protection to the cable, and the cable and the bracing piece all pass through concrete placement with the junction of concrete member, further forms the protection.
4. The invention provides an assembly type construction method for the traditional frame support conversion layer structure, the chord support mechanism can be integrated in the conversion layer structure through the method, and the reasonable construction method and the structural connection measure ensure the assembly type of the conversion layer structure and the reasonability of the force transmission of the conversion layer structure.
5. The invention has wider application range, can be used for newly-built buildings and can also be installed in the existing buildings for reinforcing the frame support mechanism of the conversion layer structure, has simple structure and convenient manufacture and installation, and has good integrity and working reliability while ensuring the effective force transmission of the conversion layer structure.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below.
Fig. 1 is a perspective view of an assembled strung concrete conversion layer structure in embodiment 1 of the present invention;
FIG. 2 is a front view of an assembled strung concrete conversion layer structure according to embodiment 1 of the present invention;
FIG. 3 is a schematic structural view of a frame support mechanism in embodiment 1 of the present invention;
FIG. 4 is a schematic structural view of a concrete member and a chord supporting mechanism in embodiment 1 of the present invention;
fig. 5 is a schematic diagram of a force transmission path of a fabricated concrete member according to example 1 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings of the specification, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Example 1
In order to overcome the defects of the existing fabricated structure, an embodiment of the present invention provides a fabricated chord-supported concrete conversion layer structure, as shown in fig. 1 and 2, including a frame support mechanism, a concrete member, and a chord support mechanism.
In the present embodiment, as shown in fig. 3, the frame support mechanism is composed of two frame support columns 1-1 vertically disposed and a frame support beam 1-2 connected to the tops of the two frame support columns 1-1.
In order to fix the concrete member, in this embodiment, the top ends of the two frame struts 1-1 are both provided with an upper connecting piece 101, and a plurality of connecting holes 102 are reserved on the frame strut beam 1-2; specifically, the upper connecting piece 101 is a steel plate, the upper connecting piece 101 is formed by an i-shaped steel plate embedded in the frame pillar 1-1, and the i-shaped steel plate extends along the height direction of the frame pillar 1-1 and penetrates out of the top end of the frame pillar 1-1; the connecting holes 102 are arranged in the middle of the frame supporting beam 1-2 in the length direction.
In the embodiment, as shown in fig. 4, the concrete member is integrally formed into an "E" shaped structure, and the concrete member is composed of two sets of end walls 2-1 arranged vertically, a middle wall 2-2 arranged between the two sets of end walls 2-1, and a transverse wall 2-3 connected to the tops of the end walls 2-1 and the middle wall 2-2, in which the two sets of end walls 2-1, the middle wall 2-2, and the transverse wall 2-3 are integrally formed.
In order to connect with the frame supporting mechanism, the bottom ends of the two groups of end walls 2-1 are provided with lower connecting pieces 201, and the bottom end of the middle wall 2-2 is provided with a plurality of connecting ribs 202; the lower connecting piece 201 is also a steel plate, the lower connecting piece 201 is matched with the upper connecting piece 101, and specifically, the lower connecting piece 201 is connected with the upper connecting piece 101 through a bolt; the connecting ribs 202 correspond to the connecting holes 102 one to one, the connecting ribs 202 penetrate through the connecting holes 102, and the end portions of the connecting ribs 202 penetrating through the connecting holes 102 are fixed to the bottom of the frame beam 1-2 through fixing sleeves, the fixing sleeves are existing products, and detailed description is not given in this embodiment.
In order to ensure the connection strength of the upper connecting member 101 and the lower connecting member 201, as shown in fig. 1 and 2, the present embodiment also forms the lower post-cast area 2-4 of the conversion layer at the connection part of the upper connecting member 101 and the lower connecting member 201 by concrete casting.
In the present embodiment, as shown in fig. 4, the string supporting mechanism includes: a stay cable 3-1 and a stay bar 3-2.
Specifically, the guy cables 3-1 are arranged in pairs, in this embodiment, the guy cables 3-1 are provided with two groups, two groups of the guy cables 3-1 are respectively arranged at two sides of the concrete member, that is, two groups of the guy cables 3-1 are respectively arranged at two side surfaces of the concrete member.
As shown in fig. 4, both ends of the guy cable 3-1 are fixed on the concrete member, specifically, the left end of the guy cable 3-1 is fixed at the top of the left side of the transverse wall 2-3, the right end of the guy cable 3-1 is fixed at the top of the right side of the transverse wall 2-3, in order to fix the guy cable, a guy cable fixing angle 301 is arranged at the top end of the transverse wall 2-3, and the guy cable fixing angle 301 protrudes out of the surface of the concrete member.
In order to protect the stay cable 3-1, the contact part of the surface of the concrete member and the stay cable 3-1 is provided with a cable sleeve 3-3, as shown in fig. 4, the joint of the end wall 2-1 and the transverse wall 2-3 and the bottom of the middle wall 2-2 are provided with the cable sleeve 3-3, and the stay cable 3-1 passes through the cable sleeve 3-3 to form protection when being arranged.
In this embodiment, two groups of the support rods 3-2 are provided, two groups of the support rods 3-2 are respectively provided at two sides of the concrete member, each group includes two support rods 3-2, the top ends of the two support rods 3-2 are fixed on the concrete member, and the bottom ends of the two support rods 3-2 are abutted against the inhaul cable 3-1, so that the inhaul cable 3-1 is tensioned and the inhaul cable 3-1 is in an ︺ type structure.
Specifically, the top ends of the two support rods 3-2 are fixed at the middle positions of the transverse walls 2-3, in order to fix the support rods 3-2, support rod fixing angle steel 302 is arranged on the transverse walls 2-3, and similarly, the support rod fixing angle steel 302 is arranged to protrude out of the surface of the concrete member.
In the embodiment, as shown in fig. 1 and 2, the post-cast areas 3-4 of the chord support mechanism are formed by concrete pouring at the transverse walls 2-3 where the stay fixing angle steel 301 and the brace fixing angle steel 302 are arranged on the concrete member and at the cable sleeves 3-3 on the middle wall 2-2.
In this embodiment, the upper floor members 4 are sequentially installed on the upper portions of the concrete members layer by layer, and the connection manner between the concrete members and the upper floor members 4 is the same as that of the conventional general method of the prefabricated structure.
In the embodiment, the upper load can be directly transmitted to the vertical bearing member through the arrangement of the string support mechanism, the schematic diagram of the force transmission path of the assembled string support concrete conversion layer structure is shown in fig. 5, the middle wall 2-2 and the upper vertical load thereof are transmitted to the guy cable 3-1 through the stay rod 3-2 at the stay rod fixing angle steel 302, the guy cable 3-1 transmits the middle wall 2-2 and the upper vertical load thereof to the end wall 2-1 through the guy cable fixing angle steel 301 at the end part, then the middle wall 2-2 and the upper vertical load thereof are transmitted to the frame strut 1-1 through the lower connecting piece 201 and the upper connecting piece 101 from the end wall 2-1 to the lower part, and finally transmitted to the foundation below the frame strut 1-1.
Example 2
A construction method of an assembled chord-supported concrete transfer floor structure comprises the following steps:
(1) installing a fixed frame strut 1-1 and a frame supporting beam 1-2, and arranging a temporary support at the lower side of the middle part of the frame supporting beam 1-2;
(2) integrally hoisting a concrete member to the top of the frame supporting mechanism, connecting and fixing the upper connecting piece 101 and the lower connecting piece 201 through bolts, enabling the connecting ribs 202 to penetrate through the connecting holes 102, fixing the end parts of the connecting ribs 202 penetrating through the connecting holes 102 through fixing sleeves, and then pouring concrete at the connecting parts of the upper connecting piece 101 and the lower connecting piece 201 to form a lower post-pouring area 2-4 of the conversion layer;
(3) installing upper floor members 4 above the concrete members layer by layer in sequence by adopting a connecting method of a conventional assembly type structure;
(4) after the main structure of the upper floor is finished, a chord support mechanism is erected on a concrete member, a support rod 3-2 is positioned, a stay cable 3-1 is tensioned, the stress and deformation conditions of a frame support beam 1-2 are monitored while the stay cable 3-1 is tensioned, and a temporary support arranged on the lower side of the middle part of the frame support beam 1-2 is removed when the stay cable 3-1 reaches a designed tensioning force;
(5) and forming a post-cast area 3-4 of the chord support mechanism by pouring concrete at the connecting part of the chord support mechanism and the concrete member.
The string support mechanism can be integrated into the conversion layer structure through the construction method of the embodiment, and the reasonable construction method and the structural connection measure ensure the assembling type of the conversion layer structure and the reasonability of the force transmission of the conversion layer structure.
It should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications belong to the protection scope of the present invention.
Claims (7)
1. Assembled string props up concrete conversion layer structure, its characterized in that includes:
the frame supporting mechanism is composed of two frame supporting columns which are vertically arranged and a frame supporting beam which is connected to the tops of the two frame supporting columns; the top ends of the two frame struts are respectively provided with an upper connecting piece, and a plurality of connecting holes are reserved on the frame strut beam;
the concrete member is arranged at the top of the frame supporting mechanism and connected with the frame supporting mechanism, and the whole concrete member is of an E-shaped structure and consists of two groups of vertically arranged end walls, a middle wall arranged between the two groups of end walls and a transverse wall connected to the tops of the end walls and the middle wall; the bottom ends of the two groups of end walls are respectively provided with a lower connecting piece matched with the upper connecting piece, and the bottom end of the middle wall is provided with a connecting rib used for penetrating through the connecting hole for fixing;
a string support mechanism disposed on the concrete member for transferring force, the string support mechanism comprising:
the pull cables are arranged in pairs, two groups of the pull cables in pairs are respectively arranged on two sides of the concrete member, and two ends of each pull cable are fixed on the concrete member;
the vaulting pole sets up in pairs, and is two sets of in pairs the vaulting pole is established respectively in the both sides of concrete member, and every group all is provided with two vaulting poles, and the top of two vaulting poles is all fixed on the concrete member, and the equal butt in bottom is on the cable to make the cable tensioning and make the cable be "︺" type structure.
2. The fabricated chord-supported concrete conversion layer structure according to claim 1, wherein the joints of the upper connectors and the lower connectors form a conversion layer lower post-cast area by concrete pouring.
3. The fabricated chord-supported concrete conversion layer structure as claimed in claim 1, wherein the upper and lower connectors are steel plates, the upper connector is formed by an i-shaped steel plate embedded inside the frame pillar and extending out of the top end of the frame pillar, and the upper and lower connectors are connected by bolts; the connecting ribs penetrate through the end parts of the connecting holes and are fixed through the fixing sleeves.
4. The fabricated chord-supported concrete conversion layer structure as claimed in claim 1, wherein the concrete member surface is provided with a cable sleeve for the stay cable to pass through; and angle steel used for fixing the end parts of the stay cable and the stay bar is arranged on the upper part of the surface of the concrete member.
5. The fabricated chord support concrete conversion layer structure according to claim 4, wherein the cable sleeves and the angle steel parts on the concrete members form a chord support mechanism post-cast area through concrete pouring.
6. The construction method of the fabricated chord-supported concrete conversion layer structure as claimed in any one of claims 1 to 5, characterized by comprising the following steps:
(1) installing a frame support mechanism;
(2) hoisting the concrete member to the top of the frame support mechanism, connecting the concrete member with the frame support mechanism, and pouring concrete at the joint of the concrete member and the frame support mechanism to form a post-pouring area at the lower part of the conversion layer;
(3) sequentially mounting upper floor members layer by layer above the concrete members;
(4) after the main structure of the upper floor is finished, erecting a string support mechanism on the concrete member;
(5) and forming a post-cast area of the chord support mechanism by pouring concrete at the connecting part of the chord support mechanism and the concrete member.
7. The method for constructing the fabricated braced concrete transfer floor structure according to claim 6, wherein a temporary support is provided at the lower side of the middle part of the frame support mechanism when the frame support mechanism is installed, and the temporary support is removed after the bracing mechanism is installed.
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| CN202011195566.6A CN112302162B (en) | 2020-10-30 | 2020-10-30 | Fabricated chord-supported concrete transfer floor structure and construction method thereof |
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| CN202011195566.6A CN112302162B (en) | 2020-10-30 | 2020-10-30 | Fabricated chord-supported concrete transfer floor structure and construction method thereof |
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