JPH04312667A - Construction method for stair section - Google Patents

Abstract

PURPOSE:To execute construction work of a stair simply and speedily without requiring any skill in a panel method. CONSTITUTION:After a wall erection progress to erect a wall to be brought into contact with a stair body 18, a stair movement progress of the prefabricated stair body 18 is executed. An installation progress to fix and install the stair body 18 to the wall is executed in an appropriate state of contact. The stair movement propress is so executed that a specific position of a tead located in the approximate center of gravity of the stair body is suspended with a rope 19 to move. By the suspending operation, a worker can easily incline the stair body 18 and can rotate it around the rope 19. According to the constitution, an appropriate angle of inclination and an appropriate angle of contact with the wall can be easily obtained, and a stair section can be constructed more easily.

Description

[Detailed description of the invention]

0001

[Industrial Field of Application] The present invention is applicable to panel construction methods.
The present invention relates to an improvement in a method of constructing a staircase section formed by abutting and fixing the side surface of the staircase to a wall section formed of wall panels.

0002

2. Description of the Related Art A panel construction method is used as one of the construction methods for simplifying and speeding up the construction process of buildings such as residences and obtaining high structural strength.

[0003] In such panel construction methods, each part of a building is constructed by combining a plurality of panels. For example, each part is constructed by combining various panels such as floor panels, wall panels, and even roof panels. is building.

[0004] In such a panel construction method, the staircase section is constructed by installing a plurality of wall panels upright, as shown in FIG. A plurality of steps (treads) 1 between the girders 14
It is constructed by installing a stair main body 18 formed by attaching a stairway 6.

[0005] To construct such a staircase, at a construction site, the walls 10 and 12 are first erected by joining a plurality of wall panels, and then the staircase main body 18 is erected at a predetermined slope, and the first and second floors are erected. This is done by spanning the floors between the two floors.

[0006] Also, only one wall is erected, and the stair main body 18 is fixed by abutting against the one wall at a predetermined angle of inclination, and the other side of the stair main body is provided with a handrail or other parts. It has also been practiced to construct stairs by constructing support members.

[0007]

[Problems to be Solved by the Invention] In the conventional method for constructing a staircase section, it is necessary to install the staircase main body 18 at a predetermined angle of inclination and at a predetermined position at a construction site. It is necessary to set the location accurately. That is, it is necessary to perform marking work on the wall portions 10 and 12 formed of wall panels.

[0008] Furthermore, after performing such position setting work, it is necessary to accurately mount and fix the stair main body 18 in that position. However, this work must first be carried out on the Sasara girder 14,
This must be done in such a way that the lower and upper ends of the tiers 14 accurately match the first and second floor surfaces, respectively, and then the step plates 16 must be attached and fixed one by one. Therefore, in order to perform this work accurately, a skilled technique is required and a complicated work must be performed, so there is a problem that the work time on site cannot be shortened.

OBJECT OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and its purpose is to easily and quickly construct stairs using the panel construction method on-site without requiring any skill. The object of the present invention is to provide a method of constructing a staircase section that can be carried out in a number of steps.

0010

[Means for Solving the Problems] In order to achieve the above object, a method for constructing a staircase according to the present invention provides a staircase that is formed by abutting and fixing a side surface of a staircase to a wall that is formed by a wall panel. In the method for constructing a section, the step of erecting the wall section includes the step of erecting the wall section, and the step of transporting a stair main body, which is formed by attaching a plurality of steps in advance between at least two spanner girders, to a position where the wall section is erected. The steps include a stair moving step and a fixing step of fixing the stair main body in contact with the wall portion to the wall portion at a predetermined stair inclination angle. It is characterized in that this is carried out by lifting and moving a predetermined part of the step plate located at the center of gravity using a string-like traction member.

[0011]

[Operation] According to the method for constructing a staircase section having the above configuration, a fixing step is performed to fix the staircase main body to the wall section erected in the wall section erecting step. A step of moving the stairs is carried out in order to bring the robot into contact with the wall at a predetermined angle of inclination and at a predetermined position.

In this step of moving the stairs, the main body of the stairs is transported by lifting a predetermined part of the step board, which is located approximately at the center of gravity of the main body of the stairs, with a single rope using a string-like traction member. That is, since the position where the rope is fixed is approximately at the center of gravity of the staircase main body, in the suspended state, the staircase main body is balanced in the front, rear, left and right directions. That is, it is suspended almost horizontally or inclined to the floor.

[0013] Although the staircase body is transported and moved in this state, since it is suspended by a string-like traction member, the worker can easily tilt the staircase body.
It can also be rotated around the rope hanging position. Therefore, when transporting and moving the stair main body so that the side surface of the stair main body comes into contact with a wall, the stair main body must be suspended and moved to a predetermined position, and the worker can easily adjust the stair inclination angle to an appropriate angle by tilting the stair main body. can be set to,
Furthermore, by rotating the stair main body, it is possible to adjust the angle at which it can abut against the abutting surface of the wall. In this way, the relatively heavy staircase body is suspended from one point and one rope for transportation, so it is possible to adjust the staircase body to an appropriate angle of inclination and with simple movements without requiring any skill. An appropriate contact angle with respect to the wall can be set, and transportation and movement for bringing the stair main body into contact with the wall can be carried out easily and quickly.

Furthermore, since the staircase main body can be fixed to the wall while in the suspended state, the fixing work can be carried out easily and stably. It is also possible to assemble the staircase itself in a factory, etc.
Work time on site can be shortened.

[0015] This makes it possible to easily and quickly construct the staircase section using the panel construction method.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the method of constructing a staircase section of the present invention will be described below with reference to the drawings.

In this embodiment, a case will be explained in which a staircase is constructed such that the staircase main body is placed between two walls and both side surfaces thereof are in contact with both walls.

First, FIG. 1 shows two walls 10 and 12 formed in the wall erecting process. The stair body is installed between these two walls 10 and 12. Therefore, these two wall portions 10 and 12 are erected with an interval equal to the width of the stairs. Further, in this embodiment, the wall sections 10 and 12 each include three wall panels 10a to 1
2c, and 12a to 12c.

Next, in order to make the installation of the staircase main body 18 easier, in this embodiment, the walls 10 and 12 are
A step for attaching a stair locking crosspiece 20 capable of locking the bottom side of the stair main body 18 to the side surface of the stair abutting side is performed.

FIG. 2 shows one wall portion 12 to which the stair locking crosspiece 20 is attached. As shown,
The stair locking crosspiece 20 is formed into a single columnar body,
The staircase is attached to the wall part 12 with an appropriate slope angle. Moreover, this stair locking crosspiece 20 is attached so as to span over all three wall panels 12a to 12c that constitute the wall portion 12. Note that this installation involves fixing to each of the wall panels 12a to 12c with nails, screws, or the like.

Although not shown, the other wall portion 10
Similarly to FIG. 2, a stair locking crosspiece 20 is attached to the side surface of the stair installation.

Next, a step of moving the stairs is carried out to bring the stair body 18 into contact with the walls 10 and 12 at an appropriate angle of inclination.

FIG. 3 shows the operation of this step, and as shown in the figure, the stair main body 18 is carried and moved by suspending it by a string-like traction member, for example, a single rope 19.

Suspension using the rope 19 is achieved by temporarily fixing an I-bolt 21 as shown in FIG. This allows it to be hung.

[0025] Therefore, since the stair main body 18 is suspended by the I bolt 21 attached near the center of gravity, it can be easily tilted as shown by the arrow 100 in FIG. Horizontal rotation as shown by arrow 200 can also be easily performed.

Therefore, the worker moves the upper end of the rope 19 using, for example, a crane, and tilts and rotates the stair main body 18 in the direction of the arrow 100 or 200, so that the wall 10 and the stair main body 18 are 12 can be carried out. In this way, since the above-mentioned tilting and rotating operations can be easily performed, the stair main body 18 can be easily brought into contact with both the walls 10 and 12 at an appropriate inclination angle.

If the center of gravity of the stair main body 18 is used as the temporary fixing position of the I-bolt 21, the stair main body 18 will be suspended in a substantially horizontal state as shown in FIG. It is not limited to this. In short,
By temporarily fixing the I-bolt 21 near the center of gravity of the stair main body 18, it is sufficient to prevent the stair main body 18 from being suspended in an almost vertically unbalanced state. This is because if the stair main body 18 is suspended in a nearly vertical state, rotational movement in the direction of arrow 100 in FIG. 3 is extremely difficult. More preferably, the staircase main body 18 is suspended while maintaining the angle of inclination at which it will be finally installed and fixed.

Furthermore, in this embodiment, since the stair locking bars 20 are attached to the walls 10 and 12 at an appropriate inclination angle of the stairs as described above, the work in this stair moving process is as follows: It has become easier. That is, by lowering the stair main body 18 while performing the above-mentioned tilting and rotating operations so that its bottom surface comes into contact with the top surface of the stair locking bar 20, the installation work can be easily performed.

FIG. 5 shows a state in which the bottom surface 14a of the sill girder 14 constituting the stair main body 18 is locked to the top surface of the stair locking crosspiece 20, and is temporarily installed. in this way,
One rope 19 is attached to the staircase body 18 at approximately its center of gravity.
By suspending and moving it at the angle, it can be easily temporarily installed on the upper part of the stair locking crosspiece 20 at a predetermined angle of inclination.

[0030] As a result, the stair main body 18 has been temporarily installed with an appropriate stair inclination angle. In addition, in this temporarily installed state, the staircase main body can be slid on the upper surface of the staircase locking crosspiece 20, so the accurate positioning of the staircase main body 18 in the sliding direction can be extremely easily performed by the movement. be able to. That is, the stair main body 18 is 2
Since it is temporarily placed on the two stair locking bars 20, there is no need to perform lifting operations, and even a small number of workers can perform the movement operation in the sliding direction.
The positioning work becomes extremely easy.

[0031] Then, the staircase main body 1 is accurately positioned.
8 to the walls 10 and 12 on both sides. This fixing work is carried out on each of the walls 10 and 12.
This is done by bringing the stair body 18 into contact with the main body 18 of the stairs.
4 to the wall panel that is in contact with it by various means,
This is done by fixing, for example by nailing.

[0032] Through this series of steps, the construction work of the staircase portion is completed. After this, the work of attaching risers to the stair main body 18, attaching decorative boards, and furthermore installing support members from the lower side of the stair main body 18 are performed.

The state of the stair main body 18 after the fixing process is similar to that of the stair portion shown in FIG. 6 above.

According to the above embodiment, by lifting the stair body 18 with one rope and easily tilting it and rotating it in the horizontal direction, the relatively heavy stair body 18 can be used for stair locking. It can be easily temporarily installed on the crosspiece 20. That is, the stair main body 18 is temporarily installed in contact with the walls 10 and 12 in an appropriate inclined state. Further, since more accurate position adjustment can be performed in this temporarily placed state, positioning work becomes extremely easy regardless of the weight.

[0035] Therefore, the working time can be shortened, and it is also possible to construct the staircase section in advance, not at the construction site, but during the unit manufacturing process at the factory where each unit is constructed by combining wall panels. becomes.

[0036]Thereby, by transporting and installing the unit in which the stairway has been constructed as is to the construction site, the stairway can be quickly installed at a predetermined position in the building. In this way, by constructing and installing the stairs from the beginning, when working on the second floor at the construction site, workers can use the stairs to go up and down the second floor, making the work more convenient. Improvements in sexual performance have also been achieved. In addition, when the stair main body 18 is fixed, as shown in FIG. 4, the stair main body 18 is supported by the stair locking crosspiece 20. It also has the effect of reinforcing this staircase part. Furthermore, since the stairway locking crosspiece 20 is spanned across a plurality of wall panels constituting the wall, it also serves the function of reinforcing the wall.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and various modifications can be made within the scope of the gist thereof. For example, in the above embodiment, the staircase main body 18 is installed between two walls 10 and 12. It goes without saying that the construction method according to the present invention can be applied to a staircase section having a structure in which the main body of the staircase is abutted against and fixed to a wall section at a predetermined inclination angle and a predetermined position.

[0038]

As described above, according to the method for constructing a staircase section according to the present invention, the staircase body can be installed with an accurate inclination angle and accurate position adjustment through extremely simple operations.

[0039] As a result, the construction work of the staircase part in the panel construction method can be carried out quickly, simplifying the construction work,
Speed is further improved.

[Brief explanation of drawings]

FIG. 1 is a schematic perspective view of a wall showing a wall erecting process of an example.

FIG. 2 is a schematic perspective view showing a state in which the stair locking crosspiece is attached.

FIG. 3 is an explanatory diagram showing a stair moving operation in a stair moving process.

FIG. 4 is a perspective view showing an example of an I-bolt attached to the stair body.

FIG. 5 is an explanatory diagram showing a state in which the stair main body is temporarily installed.

FIG. 6 is a schematic perspective view showing the structure of a conventional staircase part in the panel construction method.

[Explanation of symbols]

10, 12 Wall portion 14 Saddle girder 16 Step board 18 Stair main body 19 Rope 20 Stair locking crosspiece 21 I bolt
MH01
2401

Claims (1)

[Claims] 1. A method for constructing a stairway formed by abutting and fixing a side surface of a stairway to a wall formed of a wall panel, comprising: a wall erecting step of erecting the wall; a stair moving step in which a stair main body, which is made up of a plurality of step boards installed in advance between two flat girders, is transported to a standing position on the wall, and the stair main body that is in contact with the wall is moved at a predetermined stair inclination angle; and a fixing step of fixing it to the wall, and the stair main body is transported in the stair moving step by lifting and moving a predetermined part of the tread approximately at the center of gravity of the stair main body using a string-like traction member. A method of constructing a staircase section characterized by the following steps.