JPH0672468B2 - How to build a double roof - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method for constructing a double roof constructed on a steel frame structure, and in particular, it is possible to save construction work by unitizing members, and The present invention relates to a method for constructing a double large roof with a large roof area, which is mainly intended to improve various performances such as water leakage prevention, sound insulation, and sound absorption.

[Background and Purpose of Invention]

For roofs, in addition to basic functions such as simply preventing rain, snow, and wind, the design aspects such as the exterior may be emphasized depending on the purpose of the building. Heavy roofs are often used.

The present invention relates to a method for constructing a large roof of a steel frame in the double roof, and for a large-scale roof having the appearance of a copper plate roof, a waterproof precast concrete plate (below) , PC board) is combined, and there is no water leakage accident, it is structurally stable, and the construction method of a double roof with good workability is intended to be provided.

[Structure of Invention]

According to the present invention, a unit roof panel in which a ceiling board is mounted between the ribs of a precast concrete plate provided with a downward rib in the periphery and in the middle is installed side by side on a steel frame roof frame, and joint filling is not performed between the panels. A double roof characterized in that the upper surface is waterproofed, and a bundle is formed on the unit roof panel at a predetermined interval, a Kasagami steel frame is installed on the bundle, and a roofing material is attached on the Kasagami steel frame. Is the construction method.

〔Example〕

FIG. 1 shows an embodiment of a double roof completed by the construction method of the present invention. PC board 1 erected on roof steel frame 10 is subjected to waterproof treatment such as asphalt waterproof 11 and PC board 1 A bundle 12 is erected on the upper surface of the above, a shaded steel frame 13 is installed, and a roofing material is attached on it. In the figure, 14 is a copper plate on the upper surface of the roofing material, 15 is a core material made of wood fiber board, wood chip cement board, wood wool cement board, plywood, etc., and 16 is a joist as a reinforcing material.

2 to 5 show an example of the PC board 1 used in the present invention, which has downward ribs 2 at the periphery and in the middle.
A ceiling board 3 is attached between the ribs 2 of the PC board 1. The rib 2 is composed of a rib 2a on the outer peripheral portion of the PC board 1 and intermediate ribs 2b and 2c, and a ceiling board 3 is suspended and supported by suspension bolts 4 at respective portions separated by the intermediate rib 2b.

In this example, an insulation material 5 such as glass wool, which is a heat insulating and sound absorbing material, is attached to the upper surface of the ceiling board 3 in order to meet the requirements for acoustic performance and heat insulating performance. These are suspended and supported by the suspension bolt 4 via the mounting bracket 6 also serving as a reinforcing member and the mounting brackets 7, 8. In addition, the suspension bolt 4 is PC beforehand
It can be attached using the insert 9 provided on the lower surface side of the plate 1.

In constructing this double roof, first, in the field or in the factory, the hanging bolt 4 is attached using the insert 9 on the lower surface of the PC board 1, and the ceiling board 3 to which the insulation material 5 and the mounting bracket 6 are attached in advance is attached. Bracket 7,8
It is fixed through and integrated. Next, the unit roof panel unit thus assembled is hoisted on the roof frame by a lifting machine such as a crane, the ribs 2 are laid side by side between the steel frames 10 of the roof frame, and are sequentially spread.

FIG. 6 shows the state of construction. The fastener of the PC board 1 to the steel frame 10 is a fastener 17 made of a steel plate projected on the upper surface of the steel frame 10 and an L-shaped joining plate attached to the PC board 1. It is done by bolting 18 and.

The gaps between the PC boards 1 are filled with joints, the insulating tape is attached to the upper surface for the horizontal joints, and the above-mentioned fasteners 17 are covered with the fastener cover 20 for the vertical joints.

Next, a bundle 12 is erected on the upper surface of the PC board 1 at a predetermined interval, and a waterproof treatment such as primer coating and asphalt sheet waterproof 11 is applied to the upper surface of the PC board 1.

Next, as described above, the shaded steel frame 13 is mounted on the bundle 12, and the roofing material having the copper 14 on the surface is fixed thereon, thereby completing the double roof.

〔The invention's effect〕

The strength and waterproof function of the roof are ensured by waterproofing the upper surface of the PC board that has downward ribs in the periphery and in the middle installed directly side by side on the steel frame roof frame,
Furthermore, since a roofing material using a copper plate or the like is attached to it through a bundle and a shaded steel frame, the roof has an excellent appearance, and the inner space of the double roof can be used as a heat insulating and soundproof space. In addition, the roof of the PC board is easy to maintain because it is not directly exposed to wind, rain and sunlight. Especially, the roof construction using the PC board with the ceiling board in advance can simplify and speed up the construction,
Also, the roofing of the upper part can be done safely on the PC board roof already installed.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing a double roof embodying the present invention,
FIG. 2 is a bottom view (partially sectional view) of a PC board integrated with a ceiling board, FIG. 3 is its I-I sectional view, FIG. 4 is II-II sectional view, and FIG. 5 is of FIG. FIG. 6 is a partially enlarged view showing the details, and FIG. 6 is a perspective view showing how the double roof is constructed. 1 ... PC board, 2 ... rib, 3 ... ceiling board, 4 ... hanging bolt, 5 ... insulation material, 6,7,8 ... mounting bracket, 9 ... insert, 10 ... roof steel frame , 11 …… Asphalt waterproof, 12 …… Bundle, 13 …… Heading steel frame, 14 …… Copper plate, 15 …… Core material, 16 …… Joist, 17 …… Fastener, 18…
… Bonding plate, 19… Insulating tape, 20… Fastener cover.

Front Page Continuation (72) Inventor Shinroku Moto Akasaka 1-2-7, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Inventor Toshio Mukai 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Incorporated Co., Ltd. (72) Inventor Nobunobu Okabe 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Takeji Matsuda 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Inventor Yoshinobu Takeda 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Inventor Tatsuo Naito 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Inventor quote Shinnosuke Moto Akasaka 1-2-7, Minato-ku, Tokyo Kashima Construction Co., Ltd. (56) Bibliography 56-67107 (JP, U)

Claims (1)

[Claims] 1. A unit roof panel having a ceiling board mounted between the ribs of a precast concrete plate provided with a downward rib in the periphery and in the middle thereof is installed side by side on a steel frame roof frame, and joint filling is performed between the panels. None, waterproofing is applied to the upper surface, and a bundle is formed on the unit roof panel at a predetermined interval, a Kasage steel frame is installed on the bundle, and a roofing material is attached on the Kasami steel frame. How to build a heavy roof.