CN219732314U - Connection structure of prefabricated bay window with beam and main structure - Google Patents

Abstract

The utility model relates to a connection structure of a prefabricated bay window with a beam and a main body structure, wherein the prefabricated bay window with the beam consists of an upper structural beam of the bay window, an upper top plate of the bay window, a lower window sill, vertical side wallboards on two sides of the window sill, a lower wall of the window sill and enclosure walls on two sides of the bay window, the prefabricated bay window with the beam is connected with the main body structure into a whole through horizontal connection and vertical connection, and the main body structure comprises a cast-in-situ vertical component wall and a lower prefabricated structural beam. The utility model is suitable for the connection structure of the beam-carrying prefabricated bay window and the main body structure in the assembled concrete residential building, ensures the reliable connection of the prefabricated component and the cast-in-situ component along the height direction by arranging the horizontal connecting piece at the side surface of the bay window, can avoid the construction crack caused by the post-cast component and the prefabricated component, realizes the reliable vertical connection of the prefabricated bay window and the main body structure by arranging the vertical grouting sleeve connection and the threaded blind hole connection in the horizontal direction, has reasonable stress, and can save the engineering cost by arranging the two connecting modes.

Description

Connection structure of prefabricated bay window with beam and main structure

Technical Field

The utility model belongs to the field of building structures, and particularly relates to a connection structure of a prefabricated bay window with a beam and a main body structure.

Background

The prefabricated building is widely used in concrete residential buildings, the prefabricated components comprise horizontal components and vertical components, the horizontal components comprise a superposed beam, a superposed slab, a fully prefabricated air conditioner plate, prefabricated stairways and the like, the vertical components comprise prefabricated shear walls and prefabricated peripheral retaining walls, and the prefabricated bay window belongs to a non-standard special-shaped component in the prefabricated peripheral retaining walls and is connected with a main body structure in a complex manner. The top plate and the window board of the floating window are directly or indirectly connected with the main structure beam during cast-in-situ, and the connecting effect and the stress principle of the floating window are consistent with those of the floating window during cast-in-situ, so that the prefabricated floating window and the main structure can be reliably connected. When the house is built in an assembled mode, in order to reduce the erection of an outer wall scaffold and the waterproof and heat insulation of the peripheral retaining wall, the peripheral retaining wall is generally prefabricated by concrete, and a floating window serving as a special component of the peripheral retaining wall is also prefabricated. The assembly type building design comprises a scheme design and a construction diagram design in the earlier stage, a prefabricated component split design and a deepened detailed diagram design in the later stage, the earlier stage is completed by a design institute, the later stage is generally designed by a component manufacturer, and unhooking links exist in the two stages at present, namely, the later deepened design possibly changes the stress form of the earlier construction diagram design, particularly for the component with complex stress such as a bay window, the reliable connection with a main structure is more required to be ensured when the prefabricated component is prefabricated, and the stress mode is consistent with the node stress mode of the conventional cast-in-situ design. Therefore, it is necessary to provide a connection design method and a connection structure of a precast concrete floating window, so as to ensure that the precast floating window is reliably connected with a main structure, and meanwhile, the stress mode of the precast concrete floating window is consistent with that of a cast-in-situ structure.

Disclosure of Invention

In order to solve the difficult problems of complex connection structure and difficult construction of the precast concrete bay window and the main body structure, the utility model provides the connection structure of the beam precast bay window and the main body structure in the assembled concrete residential building, which has the advantages of simple design principle and structure and convenient construction and installation.

The utility model adopts the following technical scheme: the connection structure of the prefabricated bay window with the beam and the main structure comprises the prefabricated bay window with the beam and the main structure, wherein the prefabricated bay window with the beam consists of a roof plate at the upper part of the bay window, a structural beam at the upper part of the bay window, a window sill plate at the lower part, vertical side wall plates at two sides of the window sill, a lower wall body of the window sill and enclosure walls at two sides of the bay window. The main body structure comprises a cast-in-situ vertical component wall and a lower prefabricated structural beam, wherein the surface of the lower prefabricated structural beam is provided with pre-buried grouting sleeve steel bars and threaded blind hole steel bars; the side surfaces of the retaining walls at the two sides of the floating window are connected with the cast-in-situ vertical component wall by metal connectors along the height direction, and the reserved longitudinal ribs of the structural beams at the upper part of the floating window are anchored into the cast-in-situ vertical component wall; the embedded grouting sleeve of the lower wall body of the windowsill is sleeved on the embedded grouting sleeve steel bars of the beam surface of the lower prefabricated structure through the embedded grouting sleeve; the bottoms of the retaining walls on two sides of the bay window are provided with threaded blind holes and are sleeved on the threaded blind hole steel bars of the beam surface of the lower prefabricated structure through threaded blind hole barrels.

The vertical distance of the metal connecting pieces is not more than 500mm.

The distance between the pre-buried grouting sleeve steel bars is not more than 200mm.

The distance between the threaded blind hole and the steel bars is not more than 2m, and each side of the prefabricated bay window without the beam is not less than one blind hole.

The utility model has the advantages that: through optimizing the design that prefabricated bay window and major structure are connected, make simple structure, simple to operate, the structure of simultaneous connection design is unanimous with cast-in-place structure atress mode, guarantees to bay window roof and upper portion structural beam reliable connection promptly, bay window board and next floor major structure reliable connection. Meanwhile, the bottom of the floating window is horizontally connected with the main body structure by adopting two modes of grouting sleeve connection and threaded blind hole connection, so that the stress requirement is met, the manufacturing cost is saved, and the construction is convenient.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a section A-A of fig. 1.

Fig. 3 is a sectional view of B-B of fig. 1.

Description of the embodiments

The utility model is further described below with reference to the accompanying drawings.

The utility model comprises a prefabricated bay window with a beam, which consists of a top plate at the upper part of the bay window, an upper structural beam of the bay window, a lower window board, vertical side wallboards at two sides of the window board, a lower wall of the window board and two side guard walls of the bay window. The main body structure comprises a cast-in-situ vertical component wall and a lower prefabricated structural beam, wherein the lower prefabricated structural beam surface is embedded with reinforcing steel bars; the side surfaces of the retaining walls at the two sides of the floating window are connected with the cast-in-situ vertical component wall by metal connectors along the height direction, and the reserved longitudinal ribs of the structural beams at the upper part of the floating window are anchored into the cast-in-situ vertical component wall; the lower window board is embedded with a grouting sleeve and sleeved on embedded bars of the beam surface of the lower prefabricated structure through the embedded grouting sleeve; the bottom of each of the retaining walls on two sides of the floating window is provided with a threaded blind hole and sleeved on the embedded bars of the beam surface of the lower prefabricated structure through a threaded blind hole cylinder, as shown in figures 1-3, the prefabricated floating window component consists of a lower window board 3, an upper top plate 4 of the floating window, vertical side wall boards 2 on two sides of the window board, a lower wall body 9 of the window board, an upper structural beam 10 of the floating window and retaining walls 5 on two sides of the floating window, and the above components are cast in situ in a prefabricated component factory to form an integral component. Connecting pieces 6 are pre-buried on the side face of the enclosure wall 5, blind holes 7 are reserved on the bottom face, and connecting bars 8 are pre-buried on the top plate at corresponding positions; grouting sleeves 11 are pre-embedded in the bottom surface of a wall body 9 at the lower part of the bay window sill, and connecting bars 12 are pre-embedded at the corresponding positions of the tops; the main structure comprises a cast-in-situ vertical component wall 1 and a lower prefabricated structural beam 13, wherein the beam surface of the lower prefabricated structural beam 13 is provided with a pre-buried grouting sleeve steel bar 12 and a threaded blind hole steel bar 8. The prefabricated bay window is connected with the cast-in-situ vertical component wall 1 along the height direction by adopting a bay window embedded connecting piece 6, the connecting piece extends into the cast-in-situ vertical wall 1 to be anchored, and the longitudinal ribs of the beam are anchored into the cast-in-situ vertical wall 1 within the range of the upper structural beam 10, so that the horizontal connection between the prefabricated bay window and the main structure is realized; the vertical connection of the prefabricated bay window is realized by embedding a threaded blind hole 7 and a grouting sleeve 11 at the bottom of the bay window, sleeving the threaded blind hole 7 into a threaded blind hole reinforcing steel bar 8 during installation, and sleeving the grouting sleeve 11 into an embedded grouting sleeve reinforcing steel bar 12.

According to the construction method, firstly, a floating window component consisting of a floating window upper top plate 4, a lower window board 3, vertical wallboards 2 on two sides of the floating window, a window board lower wall 9, a floating window upper structure beam 10 and enclosure walls 5 on two sides of the floating window is prefabricated in a factory according to the attached drawings 1-3, meanwhile, a connecting piece 6, a thread blind hole 7 and a grouting sleeve 11 are pre-buried on the side face, and a thread blind hole reinforcing steel bar 8 and a grouting sleeve reinforcing steel bar 12 are pre-buried at the corresponding positions of the lower prefabricated structure beam 13; during field installation, the prefabricated bay window is hoisted to a designated position, reserved blind holes and grouting sleeves are aligned with reserved steel bars 8 and 12 of the lower prefabricated structural beam 13 and are installed, then the vertical component wall 1 is poured, and finally grouting is carried out on the grouting sleeves 11 and the blind holes 7.

According to the utility model, the connecting piece is arranged on the side surface of the prefabricated bay window, the longitudinal rib of the top prefabricated beam is combined to be anchored into the cast-in-situ structural member to realize the horizontal connection of the bay window and the main body structure, and meanwhile, cracks caused by casting concrete in sequence along the height direction can be avoided; the vertical connection of the prefabricated bay window and the main body structure along the horizontal direction is realized by arranging the grouting sleeve and the blind holes below the enclosure wall at the bottom of the bay window, the stress form is reasonable, the structure is simple and is deviated from construction, and meanwhile, two vertical connection modes are adopted according to the stress characteristics, so that the construction cost can be saved.

Claims (4)

1. A connection structure of prefabricated bay window of area roof beam and major structure, its characterized in that: the prefabricated floating window with the beam consists of a top plate at the upper part of the floating window, an upper structural beam of the floating window, a lower window board, vertical side wallboards at two sides of the window board, a lower wall body of the window board and enclosure walls at two sides of the floating window, and a main body structure, wherein the main body structure comprises a cast-in-situ vertical component wall and a lower prefabricated structural beam, and a pre-buried grouting sleeve steel bar and a threaded blind hole steel bar are arranged on the beam surface of the lower prefabricated structural beam; the side surfaces of the retaining walls at the two sides of the floating window are connected with the cast-in-situ vertical component wall by metal connectors along the height direction, and the reserved longitudinal ribs of the structural beams at the upper part of the floating window are anchored into the cast-in-situ vertical component wall; the embedded grouting sleeve of the lower wall body of the windowsill is sleeved on the embedded grouting sleeve steel bars of the beam surface of the lower prefabricated structure through the embedded grouting sleeve; the bottoms of the retaining walls on two sides of the bay window are provided with threaded blind holes and are sleeved on the threaded blind hole steel bars of the beam surface of the lower prefabricated structure through threaded blind hole barrels.

2. The connection structure according to claim 1, characterized in that: the vertical distance of the metal connecting pieces is not more than 500mm.

3. The connection structure according to claim 1 or 2, characterized in that: the distance between the steel bars of the embedded grouting sleeve is not more than 200mm.

4. The connection structure according to claim 1 or 2, characterized in that: the distance between the threaded blind holes and the reinforcing steel bars is not more than 2m, and each side wall of the prefabricated bay window with the beam is not less than one threaded blind hole.