KR200167409Y1 - Height adjustable steel form - Google Patents

Abstract

The present invention is designed to make the construction of the mortar or concrete supporting the bridge support, which transfers the upper load of the bridge to the pier, which is the lower structure of the bridge, more easily, safely and economically. The steel formwork that is controlled to be manufactured in advance is installed in the predetermined position of the upper surface of the pier, and after the height adjustment is to place the mortar or concrete, the present design is a tree at the top of the pier of the working conditions which is a high position and narrow working space Compared to the conventional rice method of manufacturing formwork by hand, the use of steel products manufactured with simple operation increases the safety of the worker, shortens the construction period, and reduces the construction cost by increasing the number of use of the formwork.

Description

Height Adjustable Steel Forms {Height Adjustable Steel Form}

The purpose of the present invention is to prepare and use the height-adjustable steel formwork, which is the present design, in the construction of the bridge mortar or concrete of the bridge, to increase the safety of the workers according to the aerial work, to shorten the construction period, and to use the steel formwork. It is intended to reduce construction cost by increasing the frequency of use.

The present invention is for the construction of the mortar or concrete that supports the local area of the bridge, which transfers the load of the superstructure from the bridge to the bridge, etc., and the superstructure of the bridge has several supports for each bridge supported by the bridge. It is supported by a supporting mortar or concrete installed on the upper surface of the piers.

Bridge bearings are steel products with staged capacity, and are produced in a certain size and height for each product.

When the pier is completed, the survey was carried out to check the position and height of the base mortar or concrete construction on the upper surface of the pier, and in the past, the formwork was made of wood by hand.

The pier, which is the work platform for the construction of the mortar or concrete of the supporting part, is always accompanied with safety management problems due to the high position of the upper surface, and the conventional construction method, in which the formwork is made of wood, has a narrow width of around 2.0m The construction was not good and it took a lot of construction period.

The present invention aims to improve the conventional construction method of manufacturing wooden formwork on the upper side of the pier, and by using a simple operation such as making the steel formwork with height adjustment in advance, placing it in place, and then adjusting the height by surveying, etc. As the preparation for pouring concrete is completed, the amount of work on the high and narrow pier tops is reduced, which increases the safety of the workers, shortens the construction period, and reduces the construction cost by increasing the number of times of use of steel formwork.

1 is a cross-sectional view of a bridge showing the installation position of the subject innovation.

2 is a perspective view of the present invention.

Figure 3 is a view showing the height adjustment bolt and nut of the present invention.

<Explanation of the code | symbol about the principal part of drawing>

①; Base mortar or concrete ⑫; Outside die handle

②; Bridge bearing ⑬; Height scale

③; Bridge superstructure ⑭; Internal formwork

④; Pier ⑮; Outside formwork

⑤; Height adjusting bolts and nuts (fixing of inner and outer formwork)

⑥; Groove reinforcement

⑦; Anti-deformation angle of external formwork

⑧; Edge reinforcement sheet of outer formwork

⑨; Internal formwork deformation prevention angle

⑩; Corner chamfer formwork

⑪; Internal die handle

Hereinafter, the configuration and operation of the height-adjustable steel formwork according to the present invention will be described in detail based on the accompanying drawings.

1 is a cross-sectional view of the bridge in which the present invention is installed, the construction sequence of the bridge proceeds in the order of pier ④ construction, support mortar ① construction, steel bridge support ② installation, bridge upper structure ③ construction hypothesis After constructing the bridge piers ④, the supporting part mortar ① to support the steel bridge bridge bearing ② should be constructed at the top of the bridge. Conventionally, formwork was made of wood. The size and height of the support mortar ① is initially determined at the time of design, but the error caused by the construction condition of the bridge ④ is corrected to the height of the support mortar ① by surveying. The horizontal and vertical sizes are the size of the bridge and the distance between the bridges. It varies depending on the size, but it is usually around 1.0m and the height is about 20 ~ 30cm, considering the constructability.

Figure 2 is a perspective view of the present invention for the construction of the pier pedestal mortar ①, the present invention consists of an internal formwork and an external formwork. Adjust using and tighten the height adjustment bolt⑤. The groove at the bottom of the bolt should be fitted with a tin plate of appropriate size to prevent leakage of the mortar, and the contact with the outer formwork and the pier ④ should be prevented from leaking the mortar if necessary, and then apply a release agent to the inside of the formwork. Cast maltar.

The height adjustment bolt ⑤ is fixed to the internal formwork 되어 to move the groove of the external formwork up and down to adjust the height. The groove reinforcing plate ⑥ reinforces the opening of the groove and evenly distributes the tightening force by the nut. Use an iron plate.

Bolts and nuts ⑤ to fix the internal and external formwork only support the weight of the internal formwork, so adjust the number of installation considering the weight of the internal formwork. It is also possible to use a relatively thin iron plate on a small scale. Therefore, two places of one each on the opposite side are installed, and if it is a little larger, the iron plate becomes thicker, and if its own weight increases, eight places of two on each side may be installed.

The deformation prevention angle ⑦ of the inner formwork and the deformation prevention angle ⑨ of the inner formwork are welded to prevent deformation of each formwork sheet, and the corner reinforcement sheet ⑧ is attached to the corner of the outer formwork by welding.

Figure 3 is a view showing the height adjustment bolt and nut ⑤ and groove reinforcing plate ⑥.

As described above, by using the machined steel formwork whose height is adjusted by a simple operation, the safety of the worker is increased, the construction period is shortened, and the construction cost is reduced.

Claims (1)

The steel formwork for the construction of the mortar or concrete of the bridge, which is composed of internal and external formwork, and is height-adjustable steel formwork which adjusts the height with a nut by inserting a bolt fixed to the internal formwork into the groove of the external formwork.