CN212317261U

CN212317261U - Mutually-supported assembled beam slab floor

Info

Publication number: CN212317261U
Application number: CN202021619172.4U
Authority: CN
Inventors: 夏永强; 肖南; 钱晓倩; 钱匡亮
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2021-01-08
Anticipated expiration: 2030-08-06

Abstract

The utility model discloses a bear assembled beam slab superstructure each other, it includes prefabricated plate, boundary beam and spandrel girder more than two, and the tip of first bearing beam in two adjacent spandrel girders is together articulated with the middle part of second bearing beam, and the tip of the bearing beam adjacent with the boundary beam is together articulated with this boundary beam, the prefabricated plate covers on the roof beam system of constituteing by spandrel girder and boundary beam and fixed with the roof beam system. The bearing beams of the floor system of the utility model are hinged in pairs without on-site welding, thus overcoming the defect that the existing beam slab floor system is difficult to realize assembly; in addition, the bearing beams are in a mutual bearing type lap joint mode, clear primary and secondary grade relations do not exist among the beams in the beam grids, the supported beams are indirectly supported by the supported beams, and the supporting and the supported beams form closed circulation, so that the integral structure of the beam slab floor system has good stress performance.

Description

Mutually-supported assembled beam slab floor

Technical Field

The utility model relates to a beam slab superstructure belongs to building superstructure and builds technical field.

Background

With the continuous promotion of ecological civilization construction in China, the problems of large resource consumption, serious environmental pollution and the like caused by the traditional construction mode are widely concerned by engineering technicians, and in recent years, the green and environment-friendly assembled construction mode becomes a new trend. At present, the building of the floor system is not completely assembled, the steel-concrete composite beam slab floor system is a floor system with higher field assembly degree, the floor system is composed of a plurality of parallel crossed steel beams and upper covering reinforced concrete precast slabs, and the steel beams are connected with the reinforced concrete precast slabs through shear connectors. The floor system fully exerts the material advantages of steel and concrete, and is widely applied to structures with large span and heavy load. However, since the steel beams are intersected with each other and just connected to one point, the connection of the joints is complicated, and the spot welding is required, so that the construction is complicated.

Therefore, how to realize the assembly of building cover construction and avoid the problem of field welding caused by two-two rigid connection of the bearing beams is a technical problem which is urgently needed to be solved at present.

Disclosure of Invention

The utility model aims at providing an each other hold assembled beam slab superstructure, two liang of articulations of spandrel girder of this superstructure need not on-the-spot welding, have overcome current beam slab superstructure and have been difficult to realize the shortcoming of prefabricated.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model discloses each other hold assembled beam slab superstructure includes prefabricated plate, boundary beam and spandrel girder more than two, and the tip of first bearing beam in two adjacent spandrel girders articulates together with the middle part of second bearing beam, and the tip of the bearing beam adjacent with the boundary beam articulates together with this boundary beam, the prefabricated plate cover on the roof beam system of constituteing by bearing beam and boundary beam and fixed with the roof beam system.

Further, the spandrel girder is rectangle cross-section roof beam.

Further, the spandrel girder is the I-shaped girder steel, and the web of the tip of first bearing beam in two adjacent spandrel girders is articulated together with the web at the middle part of second bearing beam.

Further, boundary beam area hangers, the lower limb of the tip of the bearing beam adjacent with the boundary beam is articulated together with the hangers of this boundary beam.

Further, boundary beam area hangers, the lower limb edge of a wing of the tip of the adjacent I shaped steel roof beam of boundary beam is articulated together with the hangers of this boundary beam.

Further, the utility model discloses the tip of the first bearing beam in two adjacent spandrel girders passes through the bolt and hinged joint spare is connected with the middle part of second spandrel girder.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses a two liang of articulations of beam system do not need the scene to weld, and the node installation is simple, construction cycle is short, and is lower to workman's installation technical ability requirement, can realize the assembly construction. Compared with a rigid node, the hinged node has higher ductility and stronger energy consumption capability under the action of an earthquake.

(2) The utility model discloses a tip of first bearing beam in two adjacent spandrels is together articulated with the middle part of second bearing beam, and for bearing formula overlap joint form each other, do not have clear and definite primary and secondary grade relation between each roof beam in the roof beam check, the roof beam of supporting is indirectly supported by the bearing beam again, and the confined circulation is constituteed with being supported to the supporting for the overall structure of beam slab superstructure has good atress performance.

(3) The utility model discloses a bearing beam's mutual bearing overlap joint form makes the roof beam check molding various, nimble changeable, can satisfy the architect to striding the demand of structure floor molding variety greatly better.

Drawings

Fig. 1 is a schematic structural view of a mutually supporting assembled beam slab floor of the present invention;

FIG. 2 is a schematic view of the mounting relationship between adjacent spandrel girders of a triangular planar mutual-bearing fabricated beam-slab floor system;

FIG. 3 is a connection relationship diagram of two I-shaped steel load-bearing beams in the utility model;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is a right side view of FIG. 3;

fig. 6 is a schematic structural view of the hinge connector of the present invention;

fig. 7 is a connection relationship diagram of two bearing beams with rectangular cross sections according to the present invention;

FIG. 8 is a right side perspective view of FIG. 7;

FIG. 9 is a schematic view of the hinge connection between the I-shaped steel bearing beam and the side beam with the hangers of the present invention;

fig. 10 to 16 are schematic diagrams illustrating an assembling process of a mutually supporting assembled beam slab floor of the present invention;

in the figure, 1, an edge beam, 2.1, a first bearing beam, 2.2, a second bearing beam, 3, a precast slab, 4, a hinge connector, 4.1, 4.2, a hinge connector, 5, 5.1, 5.2, 6, and 7, studs.

Detailed Description

The invention is further described in the following with specific examples in conjunction with the drawings.

Referring to fig. 1 to 16, the mutually supporting assembled beam slab floor of the present invention includes a boundary beam, two or more load-bearing beams, and a precast slab. The end part of the first bearing beam of every two adjacent bearing beams is hinged with the middle part of the second bearing beam, so that the bearing beams are connected in a plane mutual bearing structure mode. In addition, the end of the bearing beam adjacent to the boundary beam is hinged with the boundary beam, and the precast slab is covered on and fixed with a beam system consisting of the bearing beam and the boundary beam.

Fig. 1 shows a structure of a beam slab floor system of the present invention, which is assembled by two bearing beams. In fig. 1, the mutually-supported assembled beam-slab floor comprises an edge beam 1, a first bearing beam 2.1, a second bearing beam 2.2 and a precast slab 3, wherein the end part of the first bearing beam 2.1 of the two adjacent bearing beams is hinged with the middle part of the second bearing beam 2.2 through a hinge connecting piece 4 and a bolt 5. In this embodiment, the second bearing beam 2.2 is a bearing beam adjacent to the edge beam 1, the end of the second bearing beam 2.2 is hinged to the edge beam 1, and the prefabricated slab 3 covers the beam system composed of the first bearing beam 2.1, the second bearing beam 2.2 and the edge beam 1 and is fixed to the beam system through the stud 7.

Figure 2 shows the utility model discloses the connection condition of the spandrel girder of beam slab superstructure when spandrel girder is three. In fig. 2, a bearing beam a and a bearing beam B are adjacent, the bearing beam a is used as a first bearing beam, the bearing beam B is used as a second bearing beam, and the end part of the bearing beam a is hinged with the middle part of the bearing beam B; meanwhile, the bearing beam B is adjacent to the bearing beam C, the bearing beam B is used as a first bearing beam, the bearing beam C is used as a second bearing beam, and the end part of the bearing beam B is hinged with the middle part of the bearing beam C; and the bearing beam C is adjacent to the bearing beam A, the bearing beam C is used as a first bearing beam, the bearing beam A is used as a second bearing beam, and the end part of the bearing beam C is hinged with the middle part of the bearing beam A. Therefore, the connection mode of the three bearing beams in the beam-slab floor system shown in fig. 2 is in a triangular plane mutual bearing structure form.

As a preferred embodiment of the present invention, the bearing beam may be an i-beam. The I-shaped steel beam has strong bending resistance, does not need expensive welding materials and welding line detection, and can greatly save the processing cost of the steel structure. As shown in fig. 3 to 5, when the bearing beams are i-shaped steel beams, the web at the end of the first bearing beam 2.1 and the web at the middle of the second bearing beam 2.2 in two adjacent bearing beams are hinged together. As a preferred embodiment of the present invention, two adjacent load-bearing beams may be hinged together by bolts and hinge connectors, and fig. 6 shows a schematic structural view of the hinge connector 4. Taking the structure shown in fig. 3 to 5 as an example, one side of the web at the end of the first bearing beam 2.1 is connected with the middle of the second bearing beam 2.2 through a bolt 5.1 and a hinge connector 4.1, and the other side of the web at the end of the first bearing beam 2.1 is connected with the middle of the second bearing beam 2.2 through a bolt 5.2 and a hinge connector 4.2. The use of the bolts and the hinge connecting pieces is convenient to install, and the two bearing beams can be quickly hinged.

As another preferred embodiment of the present invention, the bearing beam may be a rectangular cross-section beam. The rectangular section beam is convenient to process and convenient to construct on site. As shown in fig. 7 to 8, when the bearing beams are rectangular section beams, the end part of the first bearing beam 2.1 and the middle part of the second bearing beam 2.2 in two adjacent bearing beams are hinged together. One side of the end of the first bearing beam 2.1 is connected with the middle of the second bearing beam 2.2 through a bolt 5.1 and a hinge connector 4.1, and the other side of the end of the first bearing beam 2.1 is connected with the middle of the second bearing beam 2.2 through a bolt 5.2 and a hinge connector 4.2.

Furthermore, the utility model discloses a boundary beam 1 is preferred to be taken the boundary beam of hangers, and this kind of boundary beam provides firm level on the one hand for whole bearing beam system to support, and on the other hand provides convenience for the fixed of prefabricated plate 3 with its lower part beam system. When the boundary beam 1 is provided with a suspension loop, as one of the embodiments of the present invention, the lower edge of the end of the second bearing beam 2.2 adjacent to the boundary beam 1 is hinged to the suspension loop of the boundary beam 1. When the load-bearing beam is an i-beam, as shown in fig. 9, the lower flange at the end of the second load-bearing beam 2.2 adjacent to the edge beam 1 is hinged to the suspension loop of the edge beam 1 by means of a stud 6.

The utility model discloses each other support assembly formula beam slab superstructure can be assembled according to as shown in figure 10 to 16 shown method and process:

(1) all the bearing beams are spliced according to the form of the mutual bearing structure shown in fig. 10 to 12: the end of the first bearing beam 2.1 is trimmed as required, then one side of the end of the first bearing beam 2.1 is fixed with the middle of the second bearing beam 2.2 by means of the hinge connection 4.1 and the bolt 5, the other side of the end of the first bearing beam 2.1 is fixed with the middle of the second bearing beam 2.2 by means of the hinge connection 4.2 and the bolt 5, wherein the hinge connection 4.1, 4.2 and the two bearing beams are connected by means of the bolt 5, so that the first bearing beam 2.1 and the second bearing beam 2.2 are just spliced together.

(2) For the second bearing beam 2.2 close to the edge beam 1, the end part of the second bearing beam 2.2 is properly trimmed according to the requirement, the end part of the second bearing beam 2.2 is supported on the edge beam 1 with the lugs (as shown in fig. 13 and 14) and is fixed by the studs 6, so that the end part of the second bearing beam 2.2 is hinged with the edge beam 1, and the bearing beam and the edge beam jointly build a beam system (as shown in fig. 15).

(3) And finally, covering the prefabricated reinforced concrete slab 3 on the built beam system (see fig. 15 and 16), and fixing the prefabricated slab 3 and the beam system by using the stud 7 to form the plane mutual bearing assembly type beam-slab floor system (as shown in fig. 16).

Claims

1. The utility model provides a each other bear assembled beam slab superstructure, characterized by: the prefabricated plate is covered on a beam system consisting of the bearing beams and the boundary beams and is fixed with the beam system.

2. The interconnected assembled beam-slab floor as claimed in claim 1, wherein: the spandrel girder is a rectangular section girder.

3. The interconnected assembled beam-slab floor as claimed in claim 1, wherein: the bearing beams are I-shaped steel beams, and the web plate at the end part of the first bearing beam in the two adjacent bearing beams is hinged with the web plate at the middle part of the second bearing beam.

4. The mutual support assembly type beam-slab floor system as claimed in claim 1 or 2, wherein: the boundary beam is provided with a hanging lug, and the lower edge of the end part of the bearing beam adjacent to the boundary beam is hinged with the hanging lug of the boundary beam.

5. The interconnected assembled beam-slab floor as claimed in claim 3, wherein: the side beam is provided with a hanging lug, and the lower flange of the end part of the I-shaped steel beam adjacent to the side beam is hinged with the hanging lug of the side beam.

6. A mutual bearing assembly type beam-slab floor as claimed in claim 1, 2, 3 or 5, wherein: the end part of a first bearing beam of two adjacent bearing beams is connected with the middle part of a second bearing beam through a bolt and a hinge connecting piece.

7. The interconnected assembled beam-slab floor as claimed in claim 4, wherein: the end part of a first bearing beam of two adjacent bearing beams is connected with the middle part of a second bearing beam through a bolt and a hinge connecting piece.