CN212670915U

CN212670915U - Prefabricated outer wall antidetonation structure node of assembly type structure and prefabricated outer wall

Info

Publication number: CN212670915U
Application number: CN202021134474.2U
Authority: CN
Inventors: 单亚江; 章梦杰; 李辉; 孙军军
Original assignee: Zhejiang Anju Zhuyou Technology Co ltd
Current assignee: Zhejiang Anju Zhuyou Technology Co ltd
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2021-03-09
Anticipated expiration: 2030-06-18

Abstract

The utility model belongs to the technical field of the prefabricated building structure, specifically be a prefabricated outer wall antidetonation structure node and prefabricated outer wall of prefabricated building, including soft cable, this soft cable includes embedded portion, ring portion and anchor ring portion, and wherein embedded portion fixes inside the prefabricated outer wall, and anchor ring portion reserves in both sides of prefabricated outer wall; the anchor ring part is used for binding with the reinforcing steel bar frame, and tie reinforcing steel bars are inserted into the bound anchor ring part; the cable is characterized by further comprising XPS extruded sheets, wherein the XPS extruded sheets are pre-embedded at two sides of the prefabricated outer wall, and the ring part of the soft cable is fixedly embedded in the XPS extruded sheets. The anti-seismic structure node is convenient to connect with a reinforcing steel bar frame, and meanwhile, the original structural stress performance is not changed, so that the connecting node part of the prefabricated outer wall and the cast-in-place edge member has certain deformability, and can be subjected to structural damage under the action of an earthquake, thereby achieving the purposes of not influencing the overall structural rigidity and reducing the influence on the anti-seismic performance of the main structure.

Description

Prefabricated outer wall antidetonation structure node of assembly type structure and prefabricated outer wall

Technical Field

The utility model belongs to the technical field of the assembly type structure, specifically be a prefabricated outer wall antidetonation structure node of assembly type structure and prefabricated outer wall.

Background

In recent years, the assembled building is developing from beginning to large-scale development, and follows from government leading to marketization, and the development situation of comprehensive development of national and whole industrial chains is presented. The application of composite floor slabs and prefabricated staircases is quite common, the application projects of prefabricated external walls are few due to the limitation of the technical conditions of design, production and assembly at the beginning, but with the development of the whole industrial chain and the promotion of national policies, various types of external enclosure components such as prefabricated bay windows, external partition walls with beams, heat-insulation and decoration integrated external walls and the like are all applied.

The traditional outer wall adopts brick brickworks such as aerated light cement bricks, porous hollow bricks, environment-friendly cement bricks and the like, is light in weight and has good heat preservation and insulation effects. After the precast concrete outer wall is adopted, for the convenience of field assembly, the precast concrete outer wall is generally designed into an outer partition wall with a beam, and the partition wall and a main structure are constructed simultaneously, so that the construction period can be saved, the field wet operation can be reduced, and the corresponding cost expenditure of personnel and equipment can be reduced.

Because the mode that the straight thread sleeve is connected with the steel bars for anchoring is generally adopted between the prefabricated outer wall and the cast-in-place vertical stress component, the steel bars of the cast-in-place vertical stress component are dense, the thread anchoring of the horizontal steel bars is difficult to operate under the field construction operation condition, and the positioning of the straight thread sleeve is slightly deviated, the connecting steel bars cannot be screwed into the threads, the requirement on the production condition is high, and the production cost is directly increased; the strong connection can greatly enhance the lateral stiffness of the structure, and structural engineers cannot correctly consider the influence of the prefabricated outer wall during structural design to cause the lateral stiffness of the calculated main structure to be smaller, so that the structure is adversely affected in earthquake resistance, the earthquake action transmission path is changed, and the risk of the structure in earthquake resistance design is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prefabricated outer wall antidetonation structure node of assembly type structure, this antidetonation structure node not only be convenient for be connected with the reinforcing bar frame, do not change original structure atress performance simultaneously, let prefabricated outer wall and cast-in-place edge member's connected node position have certain deformability and can take the lead to the structural failure under the earthquake action to reach and do not influence overall structure rigidity, reduce the influence to major structure antidetonation performance.

In order to achieve the above object, the utility model provides a following technical scheme: an assembled building prefabricated outer wall earthquake-resistant structure node comprises a soft cable, wherein the soft cable comprises an embedded part, a ring part and an anchor ring part, the embedded part is fixed in the prefabricated outer wall, and the anchor ring part is reserved on two sides of the prefabricated outer wall; the anchor ring part is used for binding with the reinforcing steel bar frame, and tie reinforcing steel bars are inserted into the bound anchor ring part; the cable is characterized by further comprising XPS extruded sheets, wherein the XPS extruded sheets are pre-embedded at two sides of the prefabricated outer wall, and the ring part of the soft cable is fixedly embedded in the XPS extruded sheets.

In the technical scheme, the soft cable has better deformability, the field binding with the steel bar frame is not influenced in the installation process, and the tie steel bar is inserted into the anchor ring part after the binding so as to prevent the soft cable from separating from the steel bar frame. The XPS extruded sheet that sets up lets there is certain deformation space between prefabricated outer wall and the cast-in-place edge component, and when the earthquake takes place, the prefabricated outer wall takes place to destroy at the position of XPS extruded sheet at first, and the ring portion of soft cable has good bending deformation and tensile strength, and the prefabricated outer wall can consume and release some seismic energy under the space prerequisite that satisfies the deformation between the floor layer to guarantee that the prefabricated outer wall does not drop from the structure and cause the secondary accident.

Preferably, the XPS extruded sheet is pre-buried in full length at both sides of the prefabricated outer wall.

Preferably, the pre-buried degree of depth of XPS extruded sheet on prefabricated outer wall is 30 ~ 50mm, guarantees promptly to fixing of XPS extruded sheet, has sufficient deformation space good deformation volume when guaranteeing that XPS extruded sheet is broken.

Preferably, the XPS extruded sheet has a closed cell honeycomb structure inside. The structure is stable, the light and high-strength components are provided, the cutting is convenient during production, and the edge breakage of the component caused by water absorption expansion of the material at the seam splicing position can be prevented.

Preferably, the XPS extruded sheet is wrapped with concrete of 50mm thickness at locations adjacent to both sides of the wall. The concrete has good fireproof performance, the service life cycle of the XPS extruded sheet can be prolonged, meanwhile, the concrete with the thickness can ensure that the thicknesses of the steel bar protection layers on the two sides of the wall body meet the standard requirements, and a certain fireproof isolation area can be formed; and the side concrete is very thin and is damaged along with the XPS extruded sheet in the earthquake process, thereby providing a deformation space for the main structure.

Preferably, the soft cable is composed of a galvanized steel strand, and two ends of the steel strand and the double-strand steel strand at the connecting part of the embedded part and the anchor ring part are fixed through fixing knots respectively. The zinc coating effectively improves the corrosion resistance and the service life of the steel strand, the tensile strength of the steel strand can reach 2000 MPa, and the steel strand has good relaxation performance and can effectively resist the earthquake-resistant load.

Preferably, the soft cables are arranged on the side face of the wall body at intervals of 1000-1500 mm.

Another object of the utility model is to provide a prefabricated outer wall with antidetonation effect, the both sides of this prefabricated outer wall set up above-mentioned antidetonation structure node to inside XPS that sets up of prefabricated outer wall subtracts heavy plate.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic plan structure view of an earthquake-resistant structure node in a use state provided by an embodiment of the present invention.

Fig. 2 is the plan structure schematic diagram of the prefabricated outer wall provided by the embodiment of the utility model.

In the figure, a prefabricated exterior wall 1, a cast-in-place edge member 2, an XPS extruded sheet 3, a soft rope 4, a tie bar 5, an XPS weight reduction plate 6, an anchor ring 41 and a reinforcing steel bar frame 21.

Detailed Description

Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

Fig. 1 is an embodiment of the relevant antidetonation structure node, a prefabricated exterior wall antidetonation structure node of prefabricated building, it includes the soft cable 4 of being made by a galvanized steel strand wires fifty percent discount, specifically, after the steel strand wires fifty percent discount becomes the twin wire, with the rear end (left end, the both free ends of galvanized steel strand wires promptly) and the middle part of twin wire respectively through fixed knot fixed and form the embedded portion 41 of rear end, the anchor ring portion 43 of front end, and be close to the ring portion 42 of anchor ring portion 43. The embedded part 41 is fixed inside the prefabricated outer wall 1, the anchor ring parts 43 are reserved on two sides of the prefabricated outer wall 1 and are used for being bound with the prefabricated reinforcing steel bar frames 21 of the cast-in-situ edge component 2, tie steel bars 5 are inserted into the bound anchor ring parts 42, and the tie steel bars 5 are positioned between the prefabricated reinforcing steel bar frames 21 and the anchor ring parts 43, so that the prefabricated outer wall can be prevented from being separated from the cast-in-situ edge component 2; the anti-seismic structure node further comprises an XPS extruded sheet with a closed-cell honeycomb structure inside, the XPS extruded sheet is embedded in the whole length of two sides of the prefabricated outer wall 1, the embedded depth is 40mm, and the ring part 42 of the soft cable is embedded and fixed in the XPS extruded sheet. In addition, in order to protect the XPS extruded sheet, a layer of concrete with the thickness of 50mm is arranged on two sides of the prefabricated outer wall 1 to cover the XPS extruded sheet.

The utility model discloses in, XPS extruded sheet is inside to be obturator honeycomb, and its stable in structure has the characteristic of light, high strength, and convenient cutting during production in addition at the concrete of its outer 50mm thickness of parcel, this makes it have fire resistance, can prevent to lead to the component edge to break because of the material inflation that absorbs water in the piece position simultaneously. The galvanized steel strand for manufacturing the soft cable has good corrosion resistance and long service life, the tensile strength of the steel strand can reach 2000 MPa, and the galvanized steel strand has good relaxation performance and can effectively resist the earthquake-resistant load. And because the soft cable 4 has better deformability, the field binding with the reinforcing steel bar frame 21 is not influenced in the installation process. When an earthquake happens, the XPS extruded sheet and the concrete layer wrapped by the outer layer are damaged together, partial earthquake energy can be consumed in the process, a deformation space is provided for the main structure, the ring part 42 of the soft cable 4 has good bending deformation and tensile strength, partial earthquake energy can be consumed and released on the premise that the prefabricated outer wall 1 meets the space of interlayer deformation of floors, and the prefabricated outer wall is prevented from falling off from the structure to cause secondary accidents.

Fig. 2 is an embodiment of the prefabricated outer wall, a prefabricated outer wall, the both sides of this prefabricated outer wall set up above-mentioned antidetonation structure node, and this wall body is inside to set up the XPS and to subtract heavy board 6. Specifically, two sides of the wall body are embedded with one soft cable 4 every 1200mm, and the XPS extruded sheets 3 are arranged on the two sides of the wall body in the full length, wherein the embedded parts 41 of the soft cables 4 are positioned in the prefabricated outer wall 1, the ring parts 42 are positioned in the XPS extruded sheets 3, and the anchor ring parts 43 are exposed. In addition, the XPS extruded sheet 3 was covered with concrete of 50mm thickness.

As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect.

It is noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.

While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. The utility model provides a prefabricated exterior wall antidetonation structure node of prefabricated building which characterized in that: the cable comprises a soft cable, wherein the soft cable comprises an embedded part, a ring part and an anchor ring part, the embedded part is fixed in the prefabricated outer wall, and the anchor ring part is reserved on two sides of the prefabricated outer wall; the anchor ring part is used for binding with the reinforcing steel bar frame, and tie reinforcing steel bars are inserted into the bound anchor ring part; the cable is characterized by further comprising XPS extruded sheets, wherein the XPS extruded sheets are pre-embedded at two sides of the prefabricated outer wall, and the ring part of the soft cable is fixedly embedded in the XPS extruded sheets.

2. A prefabricated exterior wall earthquake resistant construction joint for an assembly type building as claimed in claim 1, wherein: the XPS extruded sheet is pre-buried in full length at both sides of prefabricated outer wall.

3. A prefabricated exterior wall earthquake resistant construction joint for an assembly type building as claimed in claim 1, wherein: the pre-buried degree of depth of XPS extruded sheet on prefabricated outer wall is 30 ~ 50 mm.

4. A prefabricated exterior wall earthquake resistant construction joint for an assembly type building as claimed in claim 1, wherein: the inside of the XPS extruded sheet is of a closed-cell honeycomb structure.

5. A prefabricated exterior wall earthquake resistant construction joint for an assembly type building as claimed in claim 1, wherein: the XPS extruded sheet is wrapped with concrete with the thickness of 50mm at the positions close to the two sides of the wall.

6. An assembled building prefabricated exterior wall earthquake resistant construction node as claimed in any one of claims 1 to 5, wherein: the soft cable is composed of a galvanized steel strand, and two ends of the steel strand and double strands of steel strands at the connecting part of the embedded part and the anchor ring part are fixed through fixing knots respectively.

7. A prefabricated exterior wall earthquake resistant construction joint for an assembly type building as claimed in claim 1, wherein: the soft cables are arranged on the side face of the wall body every 1000-1500 mm.

8. A prefabricated exterior wall, its characterized in that: the earthquake-resistant construction node as claimed in any one of claims 1 to 7 is arranged on two sides of the prefabricated exterior wall.

9. A prefabricated exterior wall according to claim 8, wherein: and arranging an XPS weight reducing plate inside the prefabricated outer wall.