JPS6122105B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of constructing a sub-silo provided in a space between a plurality of main silos.

Steel cylindrical silos are commonly used for storing shellfish, feed, etc. Usually, a plurality of such silos are built together, and in this case, in order to effectively utilize the space between these silos, a sub-silo may be built in that space. 6th
As shown in Figures A and B, the sub-silo B is constructed by attaching the side plates 1 to the space surrounded by the main silos A, and the side plates 2 of the main silo are used as part of the side plates. It has a structure that utilizes Conventionally, when constructing such a sub-silo, as shown in Figs. 7 and 8, the main silo A
After the construction of ... is completed, a winch mount 12 is installed between the upper parts of the main silos A and A, and this mount 12
A multi-stage scaffolding 14 is suspended from the upper part of the winch 13 via a Repeat this for each side plate 1, repeat this for each side plate 1, and when the installation of one stage of side plates is completed, move the scaffolding 14 with the winch 13.
The roof was raised by one level, and the next level's side panels were arranged and installed.Finally, the roof panels were installed and the construction was completed. However, with this conventional method, the work is carried out by suspending the side plates one by one from a high position between the main silos, which results in poor material distribution efficiency. There were problems in terms of work efficiency and equipment, such as the need for special equipment such as a frame 12 and a winch 13.

The present invention was invented to solve the problems of the conventional methods as described above, and aims to provide a method that can efficiently construct sub-silos without requiring special equipment. be.

For this reason, the present invention uses a multi-stage scaffold that has a plurality of scaffold boards in the vertical direction and has side board hangers on the top stage, and has a plurality of side boards that are constituent members of the sub-silo on the sides of this multi-stage scaffold. They are each suspended and held by the above-mentioned hanging tools, and together with the side plates held on this multi-stage scaffolding, they are suspended to the side plate mounting position between the main silos, and suspended from the mounting part provided on the side of the main silo, and in this state, The installation work of each side plate is performed on the scaffolding board, and in this way, the sub-silo can be constructed efficiently without the need for special equipment such as a frame or a winch.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 5. FIG. In the present invention, a multi-stage scaffold 3 having a plurality of upper and lower scaffold boards 31 is used. Each scaffold board 31... is connected in the vertical direction by a connecting rod 32 (or connecting rope), and constitutes a multi-stage scaffold. The uppermost scaffold board 31a of the multi-stage scaffold 3 is provided with hanging tools 4 for suspending and holding each side board constituting the sub-silo. The hanging tools 4 are disposed in the circumferential direction of the scaffold corresponding to each side plate to be suspended, and in this embodiment, davits 41 are used. A chain block 42 is attached to the tip of each davit 41.

In the present invention, first, each side plate 1 is suspended from the side of the multi-stage scaffold 3 via each of the hanging tools 4. In this embodiment, four side plates 1 are installed between four main silos A, and therefore the four side plates 1 are suspended in the circumferential direction of the scaffold by four hanging devices 4 on the topmost scaffolding board 31. do. The lower end of the chain block 42 constituting each hanging tool 4 is connected to the upper end of the side plate 1 to suspend each side plate 1. The multi-stage scaffolding 3 holding the side plates 1 in the circumferential direction in this manner is lifted by a crane (not shown) and lowered into the space between the main silos A. A mounting part 5 using an eye plate or the like is provided in advance on the side of the main silo A, and the multi-stage scaffold 3 is installed so that the side plate 1 is located at the installation location in the vertical direction. It is suspended from the mounting portions 5 via wires 6, etc., thereby forming a fixed work scaffold. In this state, a worker attaches the side plates 1 on each scaffold. That is, although the side plate 1 is at approximately the predetermined mounting position with the multi-stage scaffold 3 suspended and fixed, fine adjustments are made using the suspended chain block 42, etc., to ensure accurate positioning. Both ends of the side plate 1 are welded and fixed to the main silo A, and its lower end is welded and fixed to the upper end of the lower side plate 1', etc., which have already been installed. Once this work is completed, each lifting device 4 is removed from the side plate 1, and the main silo A is lifted again using a crane.
Remove the wires 6 that were suspended from... and lift the multi-stage scaffolding 3 from the space between the main silos A.

Generally, a silo consists of several levels of upper and lower side plates, and the above operations are repeated for each level of side plates. Once the installation of the side panels is completed, the roof panels (not shown) are finally installed, thereby completing the construction of the sub-silo. A hopper (not shown) constituting the lowest part of the silo is installed in the lower part of the space between the main silos A before the side plates are attached, and the side plates 1 are sequentially attached to the upper part of the hopper in several stages.

As a preferred embodiment of the present invention, a multi-stage scaffold 3
The roof plates of each sub-silo can be used for each scaffold plate, thereby making it possible to omit a dedicated scaffold. Generally, a plurality of sub-silos are constructed on the same site, but in the present invention, the roof plates of these plural sub-silos constitute a multi-stage scaffolding 3, and this scaffolding is used to attach the side plate 1 of each sub-silo. After that, each roof plate m that made up the multi-stage scaffolding 3 is separated one by one at the top of each sub-silo, and the roof plate m is attached. Fig. 4 A, B and Fig. 5 A, B show how to attach the roof plate m, in which a plurality of roof mounting brackets 7 are provided in the upper inner circumferential direction of the side plate 1 attached to the uppermost stage, and When the aggregate 8 of plate m is a girder, for example, as shown in Fig. 4 A and B, the aggregate 8
Each end of the roof mounting bracket 7 is connected with a bolt via a plate 9, and if the aggregate 8 is a small beam, each end of the is fixed to the roof mounting bracket 7 by welding. Once the roof plate m is fixed in this way, the periphery of the roof plate m and the side plate 1
A closing plate 10 is attached to the annular gap formed between the silo and the silo, thereby completing the construction of the silo.

In addition, for the multi-stage scaffold 3, a plurality of these are prepared, and one set of scaffolds is used to install the side plates for one stage, and the side plates are previously attached to another scaffold at another location. After the installation work is completed, the scaffolding can be replaced and the next stage of work can be carried out, making the work more efficient. In addition, in the other drawings, reference numeral 11 indicates a handrail provided in the circumferential direction of each scaffold board.

Further, in this embodiment, a case has been described in which the sub silos are constructed by fixing four side plates in the circumferential direction between the four main silos A, but it goes without saying that this is not limited to this, and any number of side plates can be constructed. This can be applied to installing side plates.

According to the method of the present invention described above, a plurality of side plates in the circumferential direction can be placed at the mounting positions at the same time, making it possible to make the material placement extremely efficient, and also to place the scaffolding in the main silo. Since the work is carried out in a suspended position, there is no need for scaffolding equipment such as a frame or winch, and this has advantages in terms of work efficiency and equipment that have not been seen before.

[Brief explanation of the drawing]

Figures 1 to 3 show one embodiment of the present invention, in which Figure 1 is a plan view showing the scaffold suspended from the main silo, Figure 2 is a perspective view, and Figure 3 is a perspective view.
The figure is a side view showing the state in which the side plate is suspended by the scaffolding. Figures 4A and 4B partially show an example of the roof plate mounting structure according to the present invention, in which Figure 4A is a longitudinal sectional view and Figure 4B is a plan view with the cover plate removed. FIGS. 5A and 5B partially show another example of the roof plate mounting structure, in which A is a longitudinal sectional view and FIG. 5B is a plan view with the cover plate removed. Figures 6A and 6B schematically show an example of a sub-silo to which the method of the present invention is applied, in which Figure 6A is a plan view and Figure 6B is a side view. 7 and 8 show the conventional method, with FIG. 7 being a plan view and FIG. 8 being a perspective view. In the figure, 1 and 1' are side plates, 3 is a multi-stage scaffold, 4 is a hanging tool, 5 is a mounting portion, and 31 is a scaffold board.

Claims (1)

[Claims] 1. In a method of constructing a secondary silo in which side plates are attached between the main silos, a plurality of side plates, which are constituent members of the secondary silo, are installed at the top of the scaffold on the side of a multi-stage scaffold that has a plurality of scaffold plates in the vertical direction. The multi-tiered scaffolding and the side plates held thereon are then suspended to the side plate mounting position between the main silos, and the multi-tiered scaffolds are attached to the side panels of the main silos. A method of constructing a sub-silo, characterized in that the sub-silo is suspended from the silo, and in this state, the installation work of each side plate is carried out on a scaffolding board.