CN212201273U

CN212201273U - Formwork structure for adjacent wall at expansion joint of building

Info

Publication number: CN212201273U
Application number: CN202020638795.XU
Authority: CN
Inventors: 王金明; 许均全
Original assignee: China Metallurgical Construction Engineering Group Co Ltd
Current assignee: China Metallurgical Construction Engineering Group Co Ltd
Priority date: 2020-04-24
Filing date: 2020-04-24
Publication date: 2020-12-22
Anticipated expiration: 2030-04-24

Abstract

The utility model relates to an adjacent wall formwork structure at an expansion joint of a building, which comprises two wall reinforcement cages which are opposite in parallel, wherein the outer sides of the two wall reinforcement cages are respectively provided with a wood formwork in parallel; the parallel is equipped with a thermal-insulation board between two wall body steel reinforcement cage's the inboard template use of regard as two wall body steel reinforcement cages simultaneously, and the prefabrication has a plurality of groups horizontal perforation on thermal-insulation board and the two plank sheathing, and every group horizontal perforation corresponds wears to be equipped with one and transversely runs through thermal-insulation board, two wall body steel reinforcement cages and two plank sheathing to drawing the screw rod in order to implement the reinforcement. The utility model discloses can be with two shear force walls of major structure and the whole construction simultaneously of outer wall insulation between them, the heated board between two walls uses as the respective inboard template of adjacent two shear force walls jointly, accomplishes the construction of outer wall insulation layer when pouring two shear force walls, has effectively solved the inconvenient problem of consolidating of the respective inboard template of the double-phase adjacent shear force wall of expansion joint department to and the problem that outer wall insulation construction quality can not satisfy the designing requirement, effectively promotes the matter and imitates.

Description

Formwork structure for adjacent wall at expansion joint of building

Technical Field

The utility model belongs to the technical field of fixed building foundation engineering component, concretely relates to adjacent wall body formwork structure of building expansion joint department.

Background

At present, a building is reasonably divided into two or more structural units by structures such as earthquake-resistant joints, expansion joints and the like in a common mode, and the structures are calculated according to a plurality of towers respectively during structural calculation. In general, two adjacent shear walls at expansion joints between structural units and an external wall insulation structure between the walls are separately constructed, and the construction of the external wall insulation structure is carried out after the construction of a main body structure is finished.

The width of an expansion joint between a general structural unit and a unit is about 350mm, the length of the expansion joint is 6000 mm-7000 mm, and in order to guarantee the construction period, a unit main body can be selected for simultaneous construction.

Therefore, in actual construction, each unit is more commonly constructed in a segmented manner, and two adjacent shear walls at the expansion joint are manufactured and formed in a time-sharing manner. However, in a multi-building project with many units, the sectional construction of each unit can greatly affect the construction period. In addition, even after the sectional construction of each unit main structure is completed in the prolonged construction period, the external wall insulation between two adjacent shear walls at the expansion joint is not easy to construct, the main structure cannot be effectively adhered by using adhesive mortar, the main structure cannot be reinforced by using rivets, the insulation layer (insulation material) can only be loosely filled manually, so that the cold bridge phenomenon easily occurs, and the external wall insulation construction cannot meet the design requirements.

There are also some prior art related to this, such as: CN 201704807U, CN 204983182U, etc., but still does not solve the technical problem well and implement a specific structure, further optimization, improvement and design refinement are needed.

Disclosure of Invention

The above-mentioned not enough to prior art, the to-be-solved technical problem of the utility model is to provide an adjacent wall body formwork structure of building expansion joint department, the major structure and the outer lane of avoiding building expansion joint department keep warm the construction difficulty, the quality also remains the problem of improving, gains convenient construction, guarantees the effect that the quality is imitated.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the formwork structure comprises two wall reinforcement cages which are opposite in parallel, and wood formworks are arranged on the outer sides of the two wall reinforcement cages in parallel respectively; the parallel is equipped with a thermal-insulation board between two wall body steel reinforcement cage's the inboard template use of regard as two wall body steel reinforcement cages simultaneously, it has a plurality of groups horizontal perforation to prefabricate on thermal-insulation board and the two plank sheathing, and every group horizontal perforation corresponds wears to be equipped with one and transversely runs through thermal-insulation board, two wall body steel reinforcement cages and two plank sheathing to drawing the screw rod in order to implement the reinforcement.

Further perfecting the technical scheme, the heat-insulation plate is a hard phenolic plate or a polyurethane plate.

Furthermore, four horizontal steel bars are arranged on the wall body steel bar cage, two ends of each horizontal steel bar face the heat insulation plate on the inner side of the wall body steel bar cage and the wood formwork on the outer side of the wall body steel bar cage respectively, and the horizontal steel bars extend out of the inner side of the wall body steel bar cage towards the inner end of the heat insulation plate and are vertically abutted against the side face of the heat insulation plate; four horizontal steel bars are respectively arranged at the positions close to four corners of the wall body steel reinforcement cage.

Furthermore, the horizontal steel bars extend out of the outer side face of the wall body steel reinforcement cage towards the outer end of the wooden template and vertically abut against the inner side face of the wooden template.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses an adjacent wall body formwork structure of building expansion joint department, can be with two shear force walls of major structure and the whole construction simultaneously of outer wall insulation between them, the heated board between two walls is used as the respective inboard template of two adjacent shear force walls jointly, accomplish the construction of outer wall heat preservation when pouring two shear force walls, the inconvenient reinforced (rfd) problem of the respective inboard template of the two adjacent shear force walls of expansion joint department has effectively been solved, and the problem that the outer wall heat preservation construction quality can not satisfy the designing requirement, can also save the shear force wall inside form plate material that originally needs to use, therefore, the carrier wave prepaid electric energy meter is low in cost, and convenient for construction, the labor is saved, the engineering efficiency of construction also can correspondingly be promoted.

2. The utility model discloses an adjacent wall body formwork structure of building expansion joint department, through the selection material of heated board and the addding of horizontal reinforcement, can guarantee the use intensity of heated board as inboard template, the position of heated board, gesture can obtain effectively fixed, do not receive the influence of vibrating rod, can not cause the mould that rises, run thick liquid phenomenon, effectively guarantee the quality of the shear force wall that the shaping came out, the expansion joint after the shaping keeps warm and fills and the heat preservation effect is all fine, can satisfy the designing requirement.

Drawings

Fig. 1 is a schematic structural view of a formwork structure of an adjacent wall at an expansion joint of a building according to an embodiment;

FIG. 2 is an effect diagram of the formwork structure of the embodiment after casting;

the wall body steel reinforcement cage comprises a wall body steel reinforcement cage 1, horizontal steel bars 11, a wood formwork 2, an insulation board 3, a split screw rod 4 and a shear wall 5.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying drawings.

Referring to fig. 1, the formwork structure for an adjacent wall at an expansion joint of a building in the embodiment includes two wall reinforcement cages 1 facing each other in parallel, and wooden formworks 2 are respectively arranged on outer sides of the two wall reinforcement cages 1 in parallel; the parallel insulation board 3 that is equipped with between the inboard of two wall body steel reinforcement cages 1 uses as the inboard template of two wall body steel reinforcement cages 1 simultaneously, prefabricated a plurality of groups horizontal perforation on insulation board 3 and the two plank sheathing 2, every group horizontal perforation is corresponding to wear to be equipped with one and transversely runs through insulation board 3, two wall body steel reinforcement cages 1 and two plank sheathing 2 to draw screw rod 4 in order to implement the reinforcement, during the implementation, the outside of plank sheathing 2 is equipped with vertical or \ with horizontal back stupefied usually, the back stupefied in order to implement the reinforcement connection that corresponds is buckled through the chevron buckle in both ends of drawing screw rod 4, can understand, wall body steel reinforcement cage 1 still has necessary die block and end mould, the outside of plank sheathing 2 is supported the reinforcement about with the steel pipe frame.

The formwork structure of embodiment, can be with two shear force walls of major structure and the whole construction of outer wall heat preservation between them, simultaneously use the heated board 3 of two walls as the inboard template of two adjacent shear force walls jointly, accomplish the construction of outer wall heat preservation when pouring two shear force walls, the inconvenient problem of consolidating of the respective inboard template of two adjacent shear force walls in expansion joint department has effectively been solved, and the problem that outer wall heat preservation construction quality can not satisfy the designing requirement, can also save the shear force wall inside form plate material that originally needs to use, therefore, the carrier wave prepaid electric energy meter is low in cost, convenient for construction, save the manual work, engineering construction efficiency also can correspondingly be promoted.

The heat insulation board 3 is a hard phenolic board or a polyurethane board.

Therefore, the problems that some insulation boards 3 are insufficient in strength and cannot be effectively used as inner side templates can be solved; through trial, the hard phenolic aldehyde plate or the polyurethane plate is used, so that the phenomena of mold expansion and slurry leakage caused by insufficient strength of the heat insulation plate 3 are avoided, and the influence of a vibrating rod is avoided; the formed expansion joint has good heat insulation filling and heat insulation effects, and can meet the design requirements.

The wall body reinforcement cage comprises a wall body reinforcement cage 1, wherein four horizontal reinforcements 11 are additionally arranged on the wall body reinforcement cage 1, two ends of each horizontal reinforcement 11 respectively face an insulation board 3 on the inner side of the wall body reinforcement cage 1 and a wood formwork 2 on the outer side of the wall body reinforcement cage 1, and the horizontal reinforcements 11 extend out of the inner side of the wall body reinforcement cage 1 towards the inner end of the insulation board 3 and vertically abut against the corresponding side of the insulation board 3; four horizontal steel bars 11 are respectively arranged at the positions (two of which are indicated on the cross section of fig. 1) close to the four corners of the side surface of the wall body steel reinforcement cage 1, namely, the inner ends of the four horizontal steel bars 11 are abutted against the four corners of the heat insulation plate 3.

Therefore, the cast-in-place quality of the shear wall is further ensured. Except the effect of pulling screw 4, the inner butt of horizontal reinforcement 11 is on heated board 3, can be better with heated board 3 position, gesture fixed, also reduces the influence of vibrating rod equally, effectively guarantees the quality of the shear force wall that the shaping came out.

The horizontal steel bars 11 extend out of the outer side face of the wall body steel reinforcement cage 1 towards the outer end of the wooden formwork 2 and vertically abut against the inner side face of the wooden formwork 2.

Therefore, the distance from the shear wall surface to the internal steel bars is effectively ensured on the other side surface, and the design and manufacture requirements of the shear wall are met.

Referring to fig. 2, when the formwork erecting structure is used, the formwork erecting structure of the embodiment is firstly constructed, two adjacent shear walls 5 are synchronously cast and formed, after the solidification reaches the design strength, all the split screws 4 and the wood formworks 2 on two sides can be disassembled, the two adjacent shear walls 5 at the expansion joint and the heat insulation construction (the heat insulation board 33) of the outer wall are synchronously completed, and the quality is reliable; the holes on the wall surface can be filled with foaming glue before indoor plastering construction.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The formwork structure comprises two wall reinforcement cages which are opposite in parallel, and wood formworks are arranged on the outer sides of the two wall reinforcement cages in parallel respectively; the method is characterized in that: the parallel is equipped with a thermal-insulation board between two wall body steel reinforcement cage's the inboard template use of regard as two wall body steel reinforcement cages simultaneously, it has a plurality of groups horizontal perforation to prefabricate on thermal-insulation board and the two plank sheathing, and every group horizontal perforation corresponds wears to be equipped with one and transversely runs through thermal-insulation board, two wall body steel reinforcement cages and two plank sheathing to drawing the screw rod in order to implement the reinforcement.

2. The formwork structure for the adjacent wall at the expansion joint of the building as claimed in claim 1, wherein: the heat insulation board is a hard phenolic board or a polyurethane board.

3. The formwork structure for the adjacent wall at the expansion joint of the building as claimed in claim 1 or 2, wherein: four horizontal steel bars are arranged on the wall body steel bar cage, two ends of each horizontal steel bar face the insulation board on the inner side of the wall body steel bar cage and the wood formwork on the outer side of the wall body steel bar cage respectively, and the horizontal steel bars extend out of the inner side of the wall body steel bar cage towards the inner end of the insulation board and are vertically abutted against the side face of the insulation board; four horizontal steel bars are respectively arranged at the positions close to four corners of the wall body steel reinforcement cage.

4. The formwork structure for the adjacent wall at the expansion joint of the building as claimed in claim 3, wherein: the outer end of the horizontal steel bar facing the wood formwork extends out of the outer side face of the wall body steel bar cage and is vertically abutted against the inner side face of the wood formwork.