CN202380733U

CN202380733U - Stair bottom formwork

Info

Publication number: CN202380733U
Application number: CN 201120562573
Authority: CN
Inventors: 张书锋
Original assignee: Third Construction Co Ltd of China Construction Seventh Engineering Division Corp Ltd
Current assignee: CSCEC Strait Construction and Development Co Ltd
Priority date: 2011-12-29
Filing date: 2011-12-29
Publication date: 2012-08-15
Anticipated expiration: 2021-12-29

Abstract

The utility model relates to a stair bottom formwork, which comprises an inclined formwork. The inclined formwork can be fixedly mounted at bottoms of pouring portions of upper concrete structures and lower concrete structures of a stair. The stair bottom formwork is characterized in that plate seams and rear inserting plates are arranged on the inclined formwork, wherein the plate seams correspond to construction seams, which are located among the upper concrete structures and the lower concrete structures, of the inclined formwork and are perpendicular to an extending direction of the inclined formwork, and the rear inserting plates can be movably connected with the plate seams in an inserted manner. The stair bottom formwork can conveniently and fast resolve the problem that stair construction seams in the prior art are difficult to clean and poor in cleaning effect, not only ensures construction quality, but also improves construction efficiency, and saves construction period and construction cost.

Description

The stair soffit formwork

Technical field

The utility model relates to a kind of stair soffit formwork.

Background technology

In concrete structure construction processes such as building construction; Need stay between the top of stair concrete structure 2 and bottom concrete structure 3 by code requirement and establish constuction joint 4 at the stair position; And after having built the bottom concrete structure 3 of stair; Begin to build before the top concrete structure 2 of stair, need constuction joint 4 is cleaned out.

Traditional stair soffit formwork 1 is as shown in Figure 1 to be that one is continuously shaped from bottom to top; Stair soffit formwork 1 integral body installs and finishes, built bottom concrete structure 3 after, constuction joint 4 places often be mingled with a large amount of concrete laitances and the construction rubbish 7; Need bit by bit to cut a hole dozen removing with manual work; Unwater again only, the effort of taking a lot of work, and also constuction joint 4 cleaning effects are not good.

Summary of the invention

The purpose of the utility model is to provide a kind of stair soffit formwork of architecture advances; It can solve existing in prior technology stair constuction joint easily and fast and be difficult to clear up the problem not good with cleaning effect; Not only guaranteed construction quality; And improved efficiency of construction, saved construction period and operating expenses.

The utility model technical scheme is to constitute like this; A kind of stair soffit formwork; It comprises the tilting template of building the bottom, position of the top concrete structure that can be fixedly installed in stair and bottom concrete structure, it is characterized in that: said tilting template be provided with in itself and the corresponding position of constuction joint between top concrete structure and bottom concrete structure that the plate vertical with the bearing of trend of tilting template stitches and can with the back card/back board of plate seam activity socket connection.

The width of said plate seam is preferably 80-120mm.

The explanation of the operating principle of the utility model technique scheme is as follows: stitch because tilting template is provided with the plate vertical with the bearing of trend of tilting template in itself and the corresponding position of constuction joint between top concrete structure and bottom concrete structure; Foreign material such as laitance that produces in the time of therefore when building bottom concrete structure process or other work progress, can not accumulating the bottom concrete structure construction and construction rubbish at the constuction joint place; During the cleaning constuction joint, foreign material also directly fall down in the slave plate seam.Water smash the top concrete structure before, only need back card/back board inserted that the plate seam is fixing to get final product.

Compared to prior art; The utlity model has following advantage: the utility model can solve existing in prior technology stair constuction joint easily and fast and be difficult to clear up the problem not good with cleaning effect; Not only guaranteed construction quality; And improved efficiency of construction, saved construction period and operating expenses.

Description of drawings

Fig. 1 is the sketch map that utilizes traditional stair soffit formwork to construct.

Fig. 2 is the vertical view that utilizes the stair soffit formwork after the utility model improves to construct.

Fig. 3 is the A-A sectional drawing of Fig. 2.

Label declaration among the figure: 1, tilting template, 2, the top concrete structure, 3, the bottom concrete structure, 4, constuction joint, 5, the plate seam, 6, back card/back board, 7, concrete laitance or construction rubbish etc.

The specific embodiment

Below in conjunction with the Figure of description and the specific embodiment the utility model content is elaborated:

A kind of stair soffit formwork that provides for the utility model as depicted in figs. 1 and 2; It comprises the top concrete structure 2 that can be fixedly installed in stair and the tilting template 1 of building the bottom, position of bottom concrete structure 3, it is characterized in that: said tilting template 1 is provided with the plate vertical with the bearing of trend of tilting template 1 and stitches 5 and can stitch the back card/back board 6 of 5 activity socket connections with plate in itself and constuction joint 4 corresponding positions between top concrete structure 2 and bottom concrete structure 3.

Bottom concrete structure 3 represented among Fig. 1-Fig. 3 has been built completion, and top concrete structure 2 does not begin to build as yet.

The width of said plate seam 5 is preferably 80-120mm.

Claims

1. stair soffit formwork; It comprises the tilting template (1) of building the bottom, position of the top concrete structure (2) that can be fixedly installed in stair and bottom concrete structure (3), it is characterized in that: said tilting template (1) is provided with the back card/back board (6) that the plate vertical with the bearing of trend of tilting template (1) stitches (5) and can stitch (5) activity socket connection with plate at it with the corresponding position of constuction joint (4) that is positioned between top concrete structure (2) and the bottom concrete structure (3).

2. stair soffit formwork according to claim 1 is characterized in that: the width of said plate seam (5) is 80-120mm.