RU2750112C1 - Structure of a multi-storey building - Google Patents

Abstract

FIELD: construction.SUBSTANCE: invention relates to the field of construction. The structure of a multi-storey building consists of prefabricated reinforced concrete wall panels installed on top of each other along the underlying mortar layer through precast reinforced concrete floor panels, and curtain or self-supporting external walls. In this case, the wall panels and floor panels at the mating points have embedded metal parts located in the recesses in the concrete body, interconnected by ties, form a jointly working structure. The ties are placed in the cavity formed between the embedded parts and the concrete of the panels, and the said ties and embedded parts are interconnected by transverse ties through the aligned holes.EFFECT: technical result consists in accelerating the installation process by creating a multi-storey building structure with joints between panels that do not require welding.1 cl, 5 dwg

Description

The invention relates to the field of construction, in particular to the field of construction of multi-storey residential and public buildings from precast concrete.

The structure of a multi-storey building, consisting of prefabricated reinforced concrete wall panels installed on top of each other along the underlying mortar layer through precast reinforced concrete floor panels and curtain or self-supporting external walls, while the wall panels and floor panels at the interface have embedded metal parts located in the recesses in body of concrete, interconnected by ties, forming a jointly working structure,

the difference lies in the fact that the ties are located in a cavity formed between the embedded parts and the concrete of the panels, and the said ties and embedded parts are interconnected by transverse ties through the aligned holes.

In addition, the embedded part at the end has a stop perpendicular to the plane of the cavity.

Known structures of large-panel buildings from prefabricated reinforced concrete elements of walls and ceilings (1), in which the internal load-bearing walls rest on each other through the floor slabs by installing the slab through the mortar layer on the upper end of the lower wall panel, and the lower end of the upper wall panel through the mortar layer already on the upper surface of the floor slab, forming the so-called "platform" joint. The panels of walls and ceilings are connected (2 fig. 48, 49) by means of overhead ties, which are installed on the panels of embedded parts located in the recesses in the concrete. On each of the adjacent panels, the contacts along the contact contour are welded. Thus, the link unites adjacent panels with each other, forming a single structure and prevents them from shifting.

The disadvantage of such a building structure and such connecting assemblies of panels of large-panel buildings is that the installation of buildings is accompanied by a large amount of welding work and requires highly qualified welders.

The closest technical solution is the design of large-panel buildings (2 sheet 49), made of prefabricated reinforced concrete wall panels installed on top of each other along the underlying mortar layer through precast reinforced concrete floor panels and curtain or self-supporting external walls, while wall panels and floor panels at the interface have embedded metal parts located in the recesses in the concrete body and are interconnected by ties applied to them, which on each of the panels are welded along the contour of abutment with embedded parts, forming a jointly working structure

The aim of the invention is to create a structure of a multi-storey building with joints between the panels, which do not require welding connections to the embedded parts of the panels.

This makes it possible to speed up the process of installing large-panel buildings, simplifies installation in winter conditions, and reduces the need for highly qualified welders.

The essence of the invention is that the ties are located in the cavity formed between the embedded parts and the concrete of the panels, and these ties and embedded parts are interconnected by transverse ties through the aligned holes.

In addition, the embedded part at the end has a stop perpendicular to the plane of the cavity.

The essence of the invention is disclosed in the drawings, where it is presented:

in fig. 1 - Sectional view of the junction of four wall panels of a multi-storey building with embedded parts on the panels and connecting communication panels

in fig. 2 - A plan of the junction of four wall panels of a multi-storey building with embedded parts on the panels and connecting link panels at the level of the upper part of the links

in fig. 3 - A plan of the junction of four wall panels of a multi-storey building with embedded parts on the panels and connecting panels at the level of the lower part of the links

in fig. 4 - General view of the paired embedded part

in fig. 5 - General view of the connection from the rolling corner.

In a multi-storey large-panel building, usually internal walls, ceilings and external wall panels are interconnected by metal ties in the form of corners and plates.

FIG. 1, fig. 2 and FIG. 3 shows the conjugation of four wall panels 1. All panels in the places of their conjugation have embedded parts 2, which are anchored in the concrete body with reinforcement 4. Embedded parts are located in recesses 5 in the concrete body of panel 1. To connect the panels to each other, links 3 are used in the form, for example , rolled metal corners, which are installed not on the surface of the embedded 2, but behind them, in the cavity between the embedded and the concrete body of the panels. Cavities are formed during the molding of the panels by attaching a temporary soft material such as foam to the surface of the embedment. After heat treatment of the panel, the foam is cut out. In this case, the embedded parts 2, as shown in the plan of FIG. 3 have at the end on a part of the height stops 6 perpendicular to the plane of the embedded part for fixing the connection 3 in the direction perpendicular to the axis of the walls. In addition, mortgages 2 and ties 3 have on their surface holes 7 that are aligned during installation, where rivet ties 10 are inserted (Fig. 1, Fig. 3).

FIG. 4 shows a general view of the embedded 2 paired and connected by reinforcing rods 4 with an abutment 6 perpendicular to the plane of the embedded part on a part of the end surface. Zone 8 on the inner side of the mortgage 2 is the place of attachment of the temporary, forming a void foam pad. Embedded 2 have holes 7 for installing cross-wedge-shaped ties 10. The shape of the cross ties 10 can be different from round to rectangular.

During installation, a link 3 is inserted into the cavity behind the embedded parts 2, shown in Fig. 5. The link can be made of a rolling angle with cutouts of 9 edges made with slopes, forming a wedge-shaped shape. In addition, the connection 3 in the places of abutment to the embedded parts 2 have holes 7 for the cross connection 10. The holes are aligned with the holes of the embedded parts.

The construction of such a joint of a large-panel building works as follows. The panels are assembled and fixed in the assembly position using traditional temporary assembly braces.

After mounting and fixing the panels in the design position, ties 3 are set into the elongated recess 5 (Fig. 1, Fig. 2, Fig. 3) and, by means of mechanical action, inserted into the cavity between the embedded parts 2 and the concrete of the wall panels 1. The size of the recess 5 is as follows: which allows you to establish ties 3 in the plane of the cavity and insert them between the embedded 1 and the concrete of the panel 2.

Connections 3 are established by mechanical action, for example, by a special hydraulic jack or percussion method. The wedge-shaped part of the connection 3, formed by the cutouts 9, enters the voids behind the embedded 3 with the transverse stop 6 of the adjacent panels 1 and rigidly fixes them. In this case, the size of the voids filled with ties is such that the embedment is elastically deformed, ensuring a tight fit of the ties to the concrete body of the panels. Further, a wedge-shaped cross-link 10 is mechanically inserted into the aligned holes 7 of the mortgages 2 and ties 3. The number of holes 7 and ties 10 can be several. The vertical joint of four panels 1 is filled with mortar 11. Subsequently, the recesses 5 are sealed with cement-sand mortar.

After installing all the panel links and 1 temporary mounting braces are removed.

Each of the panels cannot be displaced horizontally in any direction. Ties 3 provide a fixed installation position of panels 1, and transverse ties 10 perceive shear forces in the plane of the panels during the operation of the building structure as a whole. The dimensions and sections of the embedded 2 of their protrusions 6 and ties 3 with cutouts 9, the size of the holes 7 and cross ties 10 are determined by calculation.

When creating nodes for the connection of three walls, instead of connection 3 from corner rolled products, a T-shaped rolled section is used, which is also inserted into the voids behind the embeds of two walls located along one axis. The third wall connects to the previous ones in the same way as four walls join.

If it is necessary to connect floor slabs to each other, Metal corner ties are inserted into the voids of adjacent slabs and this unites the slabs with each other

In all cases, the connections are installed in the voids between the embeds and concrete, and the displacement of the panels is limited both by the embeds themselves and by the transverse stops at their end. If necessary, most often for walls, cross-links are established that combine links with mortgages.

By analogy, other, not presented types of panel mates are performed.

LITERATURE

1. Drozdov P.F. Sebekin I.M. Design of large-panel buildings. Publishing house literature on construction Moscow 1967

2. JSC TsNIIEP Housing "System of large-panel housing construction HMS-2001 for use in Moscow and the Moscow region UAS 1-1 Mounting units and details sheet 48 Moscow 2002 https://files.stroyinf.ru/Data2/1/4293842/4293842262 .pdf

Claims (2)

1. The structure of a multi-storey building, consisting of prefabricated reinforced concrete wall panels installed on top of each other along the underlying mortar layer through precast reinforced concrete floor panels, and curtain or self-supporting external walls, while the wall panels and floor panels at the interface have embedded metal parts located in the recesses in the concrete body, connected by ties, forming a jointly working structure, characterized in that the ties are placed in the cavity formed between the embedded parts and the concrete of the panels, and these ties and embedded parts are interconnected by transverse ties through the aligned holes. 2. The structure of claim. 1, characterized in that the embedded part at the end has a stop perpendicular to the plane of the cavity.

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