JPH04306366A - Construction work in rainy weather using tower crane - Google Patents

Abstract

PURPOSE:To easily proceed construction work even in rainy weather by providing a large-size foldable type tent to be opened or closed around a strut like ambrella on the uppermost part of a horizontal tower crane. CONSTITUTION:As a tower crane for construction work, a horizontal boom type tower crane is selected, and a strut 6 is constructed on the uppermost part of the crane mast 2. A foldable type tent 5 to be opened or closed around the strut 6 like umbrella is provided to the tower crane. The tent 5 is upwards moved integrally with the rise of the crane, and under a condition that the tent 5 is opened, the slewing range of the horizontal boom 4 of the crane is almost covered by the tent 5. Also, the need to upwardly rise the tent 5 as the construction work proceeds can be eliminated.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to construction work for buildings, etc., and more particularly to a method for construction work in rainy weather using a tower crane.

0002

BACKGROUND OF THE INVENTION Construction work schedules are greatly affected by the weather. Due to continuous bad weather during the rainy season and winter in snowy regions, it is almost impossible to carry out any work, especially on the top floor, which is directly exposed to rain and snow, resulting in work being postponed due to rain closures. For very small-scale construction work, the work can be carried out to some extent even in rainy weather by covering the site with a sheet over a simple structure made of pipes and other materials. However, construction work of a relatively large scale cannot be handled using such a simple method.

[0003] As a temporary roof that allows construction work to proceed even in rainy weather, Utility Model Application Publication No. 1-61369 (E04H 15/28) has a large folding roof structure that opens and closes around a support like an umbrella. Tents are suggested. Multiple foldable tents were set up at the construction site.
These tents are designed to cover the entire construction site when opened.

0004

[Problem to be solved by the invention] In the above-mentioned prior art,
As the buildings are successively constructed upward, the supports of the foldable tent must be replaced with the buildings, and the tents must be pushed upward together with the buildings. There was a problem in that it was extremely troublesome to perform this work on raising multiple tents. In addition, tower cranes are generally used for construction work on medium-sized or larger buildings, but
The above-mentioned conventional technology does not take into consideration the use of tower cranes, and if multiple foldable tents are attached to the top of a building under construction, construction work cannot be carried out because they will interfere with the tower crane. There is a problem.

[0005] This invention was devised in view of the above-mentioned conventional problems, and its purpose is to enable construction work using a tower crane to proceed even in rainy weather by using the above-mentioned foldable tent. In addition to this, the purpose is to save labor in the work of repositioning the tent upward as construction progresses.

[0006]

[Means for Solving the Problems] Therefore, in this invention, a horizontal boom type crane is selected as a tower crane used for construction work, and the support of a large foldable tent, which has a structure that opens and closes around the support like an umbrella, is attached to the support by the crane. It is constructed at the top of a tower so that the tent can be moved together with the crane as a whole, and when the tent is opened, it almost covers the swing range of the horizontal boom.

[0007]

[Operation] In the horizontal boom type tower crane, the boom does not rotate upward, so there is no interference between the boom and the folding tent attached to the top of the crane tower. By covering the swing range of the horizontal boom with the tent, the main part of the construction site can be covered with the tent. Additionally, since the tent is integrated with the crane tower, as the entire crane is raised as construction work progresses, the tent will also move upward at the same time.

[0008]

[Embodiment] Fig. 1 shows an embodiment of construction work according to the present invention. 1 is a building under construction, and a crane mast 2 is erected in the center of the building so as to penetrate through the building. A crane swing section 3 with a horizontal boom 4 is combined with the upper part of the mast 2. A folding tent 5 is connected to the top of the crane mast 2 above the crane rotating part 3.

[0009] The folding tent 5 is based on the above-mentioned Japanese Unexamined Utility Model 1-6.
It has a structure similar to that of Publication No. 1369, and has the same folding structure as the umbrella structure, but is turned upside down. In other words, a strut 6 is integrally fixed to the crane mast 2, and an opening/closing rod 7 slides in the axial direction with respect to this strut 6. An umbrella is provided between the fixed strut 6 and the opening/closing rod 7. A frame structure is installed and a suitable sheet is stretched over the frame. By driving the opening/closing rod 7 with a hydraulic jack or the like, the tent 5 can be opened/closed around the pillars 6.

When the tent 5 is opened as shown in the figure, the swing range of the horizontal boom 4 is almost covered. Therefore, the construction site of the building 1 under construction can be covered with the tent 5 using a crane, and the construction can proceed even in rainy weather. Fold up tent 5 when the weather is sunny or when there is strong wind. The crane mast 2 is pushed upward as the construction of the building 1 progresses, but since the folding tent 5 moves upward together with the crane, no special work is required to push the tent 5 up.

[0011]

[Effects of the Invention] According to the present invention, a horizontal boom type crane is adopted as a tower crane used for construction work, and a folding tent is connected to the top of the crane mast, so even when the tent is open There is no risk of interference between the movement of the crane's boom and the tent. Also, I made the tent cover most of the swing range of the boom, so
Almost the entire area above a construction site being carried out using a crane can be covered with a tent. Furthermore, as the construction of the building progresses, when the entire crane is raised, the collapsible tent attached to it also moves upwards, so there is no need to carry out any work to raise the tent.

[Brief explanation of drawings]

FIG. 1 is a schematic perspective view showing an embodiment of a construction method in rainy weather using a tower crane according to the present invention.

[Explanation of symbols]

1 Buildings under construction 2 Crane mast 3　Crane rotation part 4 Horizontal boom 5. Foldable tent 6 Pillar 7 Opening/closing rod

Claims (1)

[Claims] Claim 1: In construction work using a horizontal boom type tower crane, the support of a large folding tent that opens and closes around the support like an umbrella is connected to the top of the crane mast, and the entire crane is Construction work during rainy weather using a tower crane, characterized in that the tent is moved upward together with the raising of the boom, and the swing range of the horizontal boom is almost covered when the tent is opened. Method.