JP2020139289A

JP2020139289A - Deck plate

Info

Publication number: JP2020139289A
Application number: JP2019034131A
Authority: JP
Inventors: 克哉稲葉; Katsuya Inaba; 周平板倉; Shuhei Itakura
Original assignee: Senqcia Corp
Current assignee: Senqcia Corp
Priority date: 2019-02-27
Filing date: 2019-02-27
Publication date: 2020-09-03
Anticipated expiration: 2039-02-27
Also published as: JP7246205B2

Abstract

To provide a deck plate capable of reducing the work cost while improving the efficiency of transportation work.SOLUTION: The deck plate includes a base plate 14, chord members 16, 18 provided on the upper face of the base plate 14 while extending in the longitudinal direction of the base plate 14, a bar arrangement structure 15 having a plurality of lattice materials 20, 22 provided turnably around the axes of the respective chord members 16, 18, and a fixing member 26 for fixing the bar arrangement structure 15 at its position in the vertical directions of the chord members 16, 18.SELECTED DRAWING: Figure 1

Description

本発明は、建築構造物の床スラブのような鉄筋コンクリートの構造物を形成するために用いられるデッキプレートに関するものである。 The present invention relates to deck plates used to form reinforced concrete structures such as floor slabs in building structures.

建築構造物の上階と下階（下階が無い場合は基礎部）の間に設けられる板状の床構造であって、それ自体が垂直方向の荷重を支えて建築構造物の梁や柱に伝達するものを床スラブと呼び、Ｓ造やＳＲＣ造等の建築構造物においては、鉄筋コンクリート構造の床スラブを形成するために、コンクリートの打設時にはコンクリートの型枠として機能し、コンクリートの硬化後はそのまま床スラブの一部となるような、床スラブ用のデッキプレートが用いられていた（例えば特許文献１の図１参照）。 It is a plate-shaped floor structure provided between the upper and lower floors of a building structure (the foundation if there is no lower floor), and itself supports the vertical load and the beams and columns of the building structure. What is transmitted to is called a floor slab, and in building structures such as S structure and SRC structure, in order to form a floor slab with a reinforced concrete structure, it functions as a concrete mold when placing concrete, and the concrete is hardened. After that, a deck plate for the floor slab was used so that it could be a part of the floor slab as it was (see, for example, FIG. 1 of Patent Document 1).

図１０及び図１１は、床スラブ用の従来のデッキプレート２について説明するために参照する図である。 10 and 11 are views to be referred to for explaining the conventional deck plate 2 for the floor slab.

従来のデッキプレート２は、図１０に示すように、底板４と、底板４の上面に設けられた複数（２つ）の配筋構造５を備えていた。 As shown in FIG. 10, the conventional deck plate 2 includes a bottom plate 4 and a plurality (two) bar arrangement structures 5 provided on the upper surface of the bottom plate 4.

デッキプレート２の底板４は、図１０（ａ）に示すように、図中上下方向に所定の厚さを有する略長方形の板状に形成され、その幅方向（図中左右方向）の一方の端部には連結雄部４ａが、他方の端部には連結雌部４ｂが、それぞれ底板４の長さ方向（図の紙面に垂直方向）に沿って設けられていた。 As shown in FIG. 10A, the bottom plate 4 of the deck plate 2 is formed in a substantially rectangular plate shape having a predetermined thickness in the vertical direction in the drawing, and is one of the width directions (horizontal direction in the drawing). A connecting male portion 4a was provided at one end, and a connecting female portion 4b was provided at the other end along the length direction of the bottom plate 4 (perpendicular to the paper in the figure).

デッキプレート２の配筋構造５は、図１０（ａ）に示すように、底板４の長さ方向（図の紙面に垂直方向）と略平行に伸びる丸棒状の上弦材６と、上弦材６と略平行に伸びる丸棒状の部材であって、上弦材６より下方に、上弦材６を挟んで底板４の幅方向（図中左右方向）に略左右対称に設けられた２つの下弦材７と、これらの上弦材６と２つの下弦材７の間を繋ぐように略ハの字状に設けられた２つのラチス材８を備えていた。 As shown in FIG. 10A, the reinforcement structure 5 of the deck plate 2 has a round bar-shaped upper chord member 6 extending substantially parallel to the length direction of the bottom plate 4 (vertical to the paper surface in the figure) and the upper chord member 6. Two lower chord members 7 which are round bar-shaped members extending substantially parallel to each other and are provided below the upper chord member 6 substantially symmetrically in the width direction (left-right direction in the figure) of the bottom plate 4 with the upper chord member 6 interposed therebetween. And two lattice members 8 provided in a substantially C shape so as to connect between the upper chord member 6 and the two lower chord members 7.

それぞれのラチス材８は、図１０（ｂ）に示すように、細長い丸棒状の部材をその長さ途中の複数の位置で曲げて、山部８ａと谷部８ｂが傾斜部８ｃを介して交互に連続するようなジグザグ状に形成されていた。 As shown in FIG. 10 (b), each lattice material 8 is formed by bending an elongated round bar-shaped member at a plurality of positions in the middle of its length, and mountain portions 8a and valley portions 8b alternate with each other via an inclined portion 8c. It was formed in a zigzag shape that was continuous with.

そして、２つのラチス材８は、図１０（ａ）に示すように、それぞれの山部８ｂが上弦材６の外周面を図中左右両側から挟み込むように配置されると共に、それぞれの傾斜部３ｃの長さ途中部に、２つの下弦材７の外周面がそれぞれ接触するように配置され、それぞれの接触部が溶接等により固定されていた。そして、２つのラチス材８のそれぞれの谷部８ｂは、底板４の上面に沿うように曲げられていた。 Then, as shown in FIG. 10A, the two lattice members 8 are arranged so that the respective mountain portions 8b sandwich the outer peripheral surface of the upper chord member 6 from both the left and right sides in the drawing, and the respective inclined portions 3c. The outer peripheral surfaces of the two lower chord members 7 were arranged so as to be in contact with each other in the middle of the length, and the respective contact portions were fixed by welding or the like. Then, each valley portion 8b of the two lattice members 8 was bent along the upper surface of the bottom plate 4.

このような配筋構造５が、底板４の上面に複数（２つ）設けられ、それぞれの配筋構造５の２つのラチス材８のそれぞれの谷部８ｂと、底板４の上面の接触部が、溶接等により固定されていた。 A plurality (two) of such bar arrangement structures 5 are provided on the upper surface of the bottom plate 4, and each valley portion 8b of the two lattice members 8 of each bar arrangement structure 5 and a contact portion on the upper surface of the bottom plate 4 are provided. , Was fixed by welding, etc.

これにより、配筋構造５の上弦材６及び２つの下弦材７が、底板４の上面より上方に所定の間隔をおいて配置されるようになっていた。 As a result, the upper chord member 6 and the two lower chord members 7 of the bar arrangement structure 5 are arranged above the upper surface of the bottom plate 4 at predetermined intervals.

このような従来のデッキプレート２は、十分な強度や耐食性を有する鋼材を用いて形成され、鋼板により形成された底板４の上面に、棒鋼により形成された上弦材６及び下弦材７、ラチス材８からなる配筋構造５が、溶接等により固定されることにより形成されていた。 Such a conventional deck plate 2 is formed of a steel material having sufficient strength and corrosion resistance, and is formed of a steel bar on the upper surface of a bottom plate 4 formed of a steel plate. The bar arrangement structure 5 composed of 8 was formed by being fixed by welding or the like.

このような従来のデッキプレート２を用いて、コンクリートの床スラブを形成するには、図１１に示すように、まず、形成する床スラブの大きさに合わせて、複数のデッキプレート２をその幅方向（図中左右方向）に並べて配置する。 In order to form a concrete floor slab using such a conventional deck plate 2, first, as shown in FIG. 11, a plurality of deck plates 2 are formed in width according to the size of the floor slab to be formed. Arrange them side by side in the direction (left and right in the figure).

このとき、それぞれのデッキプレート２の底板４の連結雄部４ａが、これと隣り合って配置された別のデッキプレート２の底板４の連結雌部４ｂに連結され、それにより、全体で一枚の大きなデッキプレートが形成される。 At this time, the connecting male portion 4a of the bottom plate 4 of each deck plate 2 is connected to the connecting female portion 4b of the bottom plate 4 of another deck plate 2 arranged adjacent to this, thereby making one sheet as a whole. Large deck plate is formed.

そして、図１１に示すように、この一枚の大きなデッキプレートの外周部を囲むように型枠９を設け、コンクリート３を、型枠９とデッキプレート２の底板４に囲まれたその内側部に、デッキプレート２の配筋構造５がコンクリート３の内部に配置されるような厚さで打設する。 Then, as shown in FIG. 11, a formwork 9 is provided so as to surround the outer peripheral portion of this one large deck plate, and the concrete 3 is surrounded by the formwork 9 and the bottom plate 4 of the deck plate 2. In addition, the reinforcing bar structure 5 of the deck plate 2 is placed so as to be arranged inside the concrete 3.

そして、コンクリートが乾燥して硬化した後に型枠９を取り外すことにより、デッキプレート２の底板４が底部となり、配筋構造５の上弦材６及び下弦材７がコンクリート３の内部に配置された板状の床スラブ１が形成され、デッキプレート２は床スラブ１と一体化して、そのまま床スラブ１の一部として使用される。 Then, by removing the formwork 9 after the concrete has dried and hardened, the bottom plate 4 of the deck plate 2 becomes the bottom, and the upper chord member 6 and the lower chord member 7 of the bar arrangement structure 5 are arranged inside the concrete 3. A shaped floor slab 1 is formed, and the deck plate 2 is integrated with the floor slab 1 and used as it is as a part of the floor slab 1.

このように、従来のデッキプレート２は、コンクリート３が打設されてから硬化するまでの間はコンクリートの型枠として機能し、コンクリート３が硬化した後は、そのまま床スラブ１の一部として使用されるようになっていた。 In this way, the conventional deck plate 2 functions as a concrete formwork from the time the concrete 3 is cast until it hardens, and after the concrete 3 hardens, it is used as it is as a part of the floor slab 1. It was supposed to be done.

特開２０１３−１６３９１４号公報Japanese Unexamined Patent Publication No. 2013-163914

しかしながら、上述したような従来のデッキプレート２では、一度に多数のデッキプレート２を運搬することができないため、運搬作業の効率が低下し、作業コストが増大するというという問題があった。 However, with the conventional deck plate 2 as described above, since a large number of deck plates 2 cannot be transported at one time, there is a problem that the efficiency of the transport work is lowered and the work cost is increased.

すなわち、従来のデッキプレート２は、それ自体は比較的重量の軽い部材であったが、その配筋構造５が丸棒状の部材（上弦材６、下弦材７、ラチス材８）を組み合わせて形成されているため、その高さ方向（図１０（ａ）中上下方向）に占める寸法が大きく、非常に嵩張る部材となっていた。 That is, the conventional deck plate 2 is a member which is relatively light in weight by itself, but its reinforcing bar structure 5 is formed by combining round bar-shaped members (upper chord member 6, lower chord member 7, lattice member 8). Therefore, the member occupies a large size in the height direction (vertical direction in FIG. 10A) and is a very bulky member.

そして、このような従来のデッキプレート２は、一般的な建築現場で使用される場合、予め工場等で必要な数のデッキプレート２を生産し、それらをトラック等によって運搬して建築現場に搬入していた。 When such a conventional deck plate 2 is used at a general construction site, the required number of deck plates 2 are produced in advance at a factory or the like, and they are transported by a truck or the like and carried to the construction site. Was.

そのため、高さ方向に嵩張るデッキプレート２をトラック等に積み込む際に、トラックの荷台等に積載可能な高さ寸法の限界までデッキプレート２を積み重ねたとしても、積み込んだデッキプレート２の総重量が、トラック等の最大積載重量に対してはるかに小さくなってしまい、トラック等の積載重量に無駄が生じていた。 Therefore, when the deck plate 2 which is bulky in the height direction is loaded on a truck or the like, even if the deck plate 2 is stacked up to the limit of the height dimension that can be loaded on the truck bed or the like, the total weight of the loaded deck plate 2 is increased. , It became much smaller than the maximum load weight of trucks and the like, and the load weight of trucks and the like was wasted.

それにより、大規模な建築現場で使用するための多数のデッキプレート２を建築現場に搬入する際には、上記のような積載重量に無駄が生じた状態のトラック等を用いて、デッキプレート２の運搬作業を繰り返し行うことになり、その分、運送費がかかるだけでなく、トラック等への積み込みや、建築現場での積み下ろしの作業もその度に行う必要があるため、運搬作業の効率が低下し、作業全体のコストの増大を招いていた。 As a result, when a large number of deck plates 2 for use at a large-scale construction site are brought into the construction site, the deck plates 2 are used by using a truck or the like in a state where the load weight is wasted as described above. Not only does it cost more to transport, but it also requires loading onto trucks and loading and unloading at the construction site each time, which improves the efficiency of transportation. It has decreased, leading to an increase in the cost of the entire work.

そこで本発明は、上記問題点に鑑みて、運搬作業の効率を向上させると共に、作業コストの低減を図ることができるデッキプレートを提供することを課題とするものである。 Therefore, in view of the above problems, it is an object of the present invention to provide a deck plate capable of improving the efficiency of transportation work and reducing the work cost.

上記課題を解決するために、本発明のデッキプレートは、
底板と、
前記底板の上面に設けられ、前記底板の長さ方向に伸びる複数の弦材と、前記弦材の軸線回りに回動可能に設けられた複数のラチス材を有する配筋構造と、
前記配筋構造の前記弦材の上下方向の位置を固定する固定部材と、を備えた
ことを特徴とするものである。 In order to solve the above problems, the deck plate of the present invention
With the bottom plate
A bar arrangement structure having a plurality of chord members provided on the upper surface of the bottom plate and extending in the length direction of the bottom plate, and a plurality of lattice members rotatably provided around the axis of the chord member.
It is characterized by including a fixing member for fixing the vertical position of the chord member of the bar arrangement structure.

また、本発明のデッキプレートは、
前記配筋構造は、
前記底板の上面より上方に所定の間隔をおいて配置された上弦材と、
前記上弦材より下方に、前記上弦材を挟んで前記底板の幅方向に略左右対称に配置された２つの下弦材と、
前記上弦材と前記２つの下弦材のそれぞれの間を繋ぐように設けられた２つの上ラチス材と、
前記２つの下弦材のそれぞれと前記底板の上面の間を繋ぐように設けられた２つの下ラチス材と、を備え、
前記２つの下ラチス材のそれぞれが、前記底板の上面に対して回動可能に設けられた
ことを特徴とするものである。 Further, the deck plate of the present invention is
The bar arrangement structure is
An upper chord member arranged above the upper surface of the bottom plate at a predetermined interval,
Below the upper chord member, two lower chord members arranged substantially symmetrically in the width direction of the bottom plate with the upper chord member interposed therebetween.
Two upper lattice materials provided so as to connect between the upper chord material and the two lower chord materials, respectively.
Each of the two lower chord members and two lower lattice members provided so as to connect between the upper surface of the bottom plate are provided.
Each of the two lower lattice materials is rotatably provided with respect to the upper surface of the bottom plate.

また、本発明のデッキプレートは、
前記配筋構造は、
前記底板の上面より上方に所定の間隔をおいて配置された上弦材と、
前記上弦材より下方に、前記上弦材と略平行に伸びる軸部材と、
前記上弦材と前記軸部材の間に、前記上弦材と前記軸部材の中心を通る中央線を挟んで前記底板の幅方向に略左右対称に配置された２つの下弦材と、
前記上弦材と前記２つの下弦材のそれぞれの間を繋ぐように設けられた２つの上ラチス材と、
前記２つの下弦材のそれぞれと前記軸部材の間を繋ぐように設けられた２つの下ラチス材と、を備え、
前記軸部材が、前記底板の上面に対して回動可能に設けられた
ことを特徴とするものである。 Further, the deck plate of the present invention is
The bar arrangement structure is
An upper chord member arranged above the upper surface of the bottom plate at a predetermined interval,
A shaft member extending below the upper chord member substantially in parallel with the upper chord member,
Two lower chord members arranged substantially symmetrically in the width direction of the bottom plate with a center line passing through the center of the upper chord member and the shaft member sandwiched between the upper chord member and the shaft member.
Two upper lattice materials provided so as to connect between the upper chord material and the two lower chord materials, respectively.
Each of the two lower chord members and two lower lattice members provided so as to connect between the shaft members are provided.
The shaft member is rotatably provided with respect to the upper surface of the bottom plate.

また、本発明のデッキプレートは、
前記底板の上面にスペーサー部材が設けられ、
前記配筋構造は、前記スペーサー部材を介して、前記底板の上面より上方に所定の間隔をおいて設けられた
ことを特徴とするものである。 Further, the deck plate of the present invention is
A spacer member is provided on the upper surface of the bottom plate.
The bar arrangement structure is characterized in that it is provided above the upper surface of the bottom plate at a predetermined interval via the spacer member.

また、本発明のデッキプレートは、
前記固定部材は、前記底板の上面に対して回動可能に設けられ、
前記固定部材の支持部が前記配筋構造の前記弦材に接触して支持することにより、前記配筋構造の前記弦材の上下方向の位置が固定されるよう構成された
ことを特徴とするものである。 Further, the deck plate of the present invention is
The fixing member is rotatably provided with respect to the upper surface of the bottom plate.
It is characterized in that the support portion of the fixing member contacts and supports the chord member of the bar arrangement structure so that the vertical position of the chord member of the bar arrangement structure is fixed. It is a thing.

このような本発明のデッキプレートによれば、
底板と、
前記底板の上面に設けられ、前記底板の長さ方向に伸びる複数の弦材と、前記弦材の軸線回りに回動可能に設けられた複数のラチス材を有する配筋構造と、
前記配筋構造の前記弦材の上下方向の位置を固定する固定部材と、を備えたことにより、
運搬作業の効率を向上させると共に、作業コストの低減を図ることができる。 According to such a deck plate of the present invention,
With the bottom plate
A bar arrangement structure having a plurality of chord members provided on the upper surface of the bottom plate and extending in the length direction of the bottom plate, and a plurality of lattice members rotatably provided around the axis of the chord member.
By providing a fixing member for fixing the vertical position of the chord member of the bar arrangement structure.
It is possible to improve the efficiency of transportation work and reduce the work cost.

本発明の第１の実施の形態に係るデッキプレート１２の正面図である。It is a front view of the deck plate 12 which concerns on 1st Embodiment of this invention. 図１に示すデッキプレート１２の側面図である。It is a side view of the deck plate 12 shown in FIG. デッキプレート１２の配筋構造１５を折り畳む手順を説明するための図であって、図３（ａ）はデッキプレート１２の側面図であり、図３（ｂ）は固定部材２６を省略したデッキプレート１２の正面図である。It is a figure for demonstrating the procedure of folding the bar arrangement structure 15 of the deck plate 12, FIG. 3A is a side view of the deck plate 12, and FIG. 3B is a deck plate which omitted the fixing member 26. 12 is a front view. 本発明の第２の実施の形態に係るデッキプレート３２の正面図である。It is a front view of the deck plate 32 which concerns on the 2nd Embodiment of this invention. 図４に示すデッキプレート３２の側面図である。It is a side view of the deck plate 32 shown in FIG. デッキプレート３２の配筋構造３５を折り畳む手順を説明するための図であって、図６（ａ）はデッキプレート３２の側面図であり、図６（ｂ）は固定部材２６を省略したデッキプレート３２の正面図である。It is a figure for demonstrating the procedure of folding the bar arrangement structure 35 of the deck plate 32, FIG. 6A is a side view of the deck plate 32, and FIG. 6B is a deck plate which omitted the fixing member 26. It is a front view of 32. 本発明の第３の実施の形態に係るデッキプレート４２を示す図であって、図７（ａ）はその正面図であり、図７（ｂ）はその側面図である。It is a figure which shows the deck plate 42 which concerns on 3rd Embodiment of this invention, FIG. 7A is a front view thereof, and FIG. 7B is a side view thereof. 図７に示すデッキプレート４２の軸受部材４８の周辺を拡大して示す図であって、図８（ａ）はその拡大正面図であり、図８（ｂ）はその拡大側面図である。FIG. 7 is an enlarged view showing the periphery of the bearing member 48 of the deck plate 42 shown in FIG. 7, FIG. 8A is an enlarged front view thereof, and FIG. 8B is an enlarged side view thereof. 本発明の第４の実施の形態に係るデッキプレート５２を示す図であって、図９（ａ）はその正面図であり、図９（ｂ）はその側面図である。It is a figure which shows the deck plate 52 which concerns on 4th Embodiment of this invention, FIG. 9A is a front view, and FIG. 9B is a side view thereof. 床スラブ用の従来のデッキプレート２を示す図であって、図１０（ａ）はその正面図であり、図１０（ｂ）はその側面図である。It is a figure which shows the conventional deck plate 2 for a floor slab, FIG. 10A is a front view thereof, and FIG. 10B is a side view thereof. 従来のデッキプレート２を用いて床スラブ１を形成するための手順を説明するための、その一部が省略された概略正面図である。It is a schematic front view in which a part thereof is omitted for demonstrating the procedure for forming a floor slab 1 using the conventional deck plate 2.

以下、本発明に係るデッキプレートを実施するための形態について、図面に基づいて具体的に説明する。 Hereinafter, a mode for carrying out the deck plate according to the present invention will be specifically described with reference to the drawings.

図１ないし図３は、本発明の第１の実施の形態に係るデッキプレート１２について説明するために参照する図である。なお、図１０及び図１１に示した従来るデッキプレート２と同様の部分には、一部を除き同じ符号を付して説明するものとする。 1 to 3 are views for reference to explain the deck plate 12 according to the first embodiment of the present invention. The same parts as those of the conventional deck plate 2 shown in FIGS. 10 and 11 will be described with the same reference numerals except for a part.

本実施の形態に係るデッキプレート１２は、図１及び図２に示すように、底板１４と、底板１４の上面に設けられた複数の配筋構造１５と、それぞれの配筋構造１５の、底板１４の長さ方向（図２中左右方向）の両端部に設けられた固定部材２６を備えている。 As shown in FIGS. 1 and 2, the deck plate 12 according to the present embodiment has a bottom plate 14, a plurality of bar arrangement structures 15 provided on the upper surface of the bottom plate 14, and a bottom plate of each bar arrangement structure 15. 14 fixing members 26 are provided at both ends in the length direction (left-right direction in FIG. 2).

デッキプレート１２の底板１４は、図１に示すように、図中上下方向に所定の厚さを有し、図の紙面に垂直方向に所定の長さを有する略長方形の板状に形成され、その長さ方向に対して直角な幅方向（図中左右方向）の一方（図中左側）の端部には、連結雄部１４ａが底板１４の長さ方向に沿って設けられ、幅方向の他方（図中右側）の端部には、連結雌部１４ｂが底板１４の長さ方向に沿って設けられている。 As shown in FIG. 1, the bottom plate 14 of the deck plate 12 is formed in a substantially rectangular plate shape having a predetermined thickness in the vertical direction in the drawing and a predetermined length in the direction perpendicular to the paper surface in the drawing. A connecting male portion 14a is provided along the length direction of the bottom plate 14 at one end (left side in the figure) in the width direction (left-right direction in the figure) perpendicular to the length direction, and is provided in the width direction. At the other end (on the right side in the drawing), a connecting female portion 14b is provided along the length direction of the bottom plate 14.

これらの連結雄部１４ａ及び連結雌部１４ｂは、それぞれの断面形状が互いに係合するようなフック状に形成されており、従来のデッキプレート２の底板４に設けられた連結雄部４ａ及び連結雌部４ｂ（図１０（ａ）参照）と同様の形状に形成されている。 The connecting male portion 14a and the connecting female portion 14b are formed in a hook shape so that their cross-sectional shapes engage with each other, and are connected to the connecting male portion 4a provided on the bottom plate 4 of the conventional deck plate 2. It is formed in the same shape as the female portion 4b (see FIG. 10A).

これにより、複数のデッキプレート１２をその幅方向に並べて配置した際に、それぞれのデッキプレート１２の底板１４の連結雄部１４ａを、これと隣り合って配置された別のデッキプレート１２の底板１４の連結雌部１４ｂに係合させて、複数のデッキプレート１２をその幅方向に連結することができるようになっている。 As a result, when a plurality of deck plates 12 are arranged side by side in the width direction, the connecting male portion 14a of the bottom plate 14 of each deck plate 12 is arranged adjacent to the bottom plate 14 of another deck plate 12. A plurality of deck plates 12 can be connected in the width direction by engaging with the connecting female portion 14b of the above.

デッキプレート１２の配筋構造１５は、図１に示すように、底板１４の長さ方向（図の紙面に垂直方向）と略平行に伸びる丸棒状の上弦材１６（弦材）及び下弦材１８（弦材）と、上弦材１６と下弦材１８の間を繋ぐように設けられた上ラチス材２０（ラチス材）と、下弦材１８と底板１４の間を繋ぐように設けられた下ラチス材２２（ラチス材）と、を備えている。 As shown in FIG. 1, the bar arrangement structure 15 of the deck plate 12 has a round bar-shaped upper chord member 16 (string member) and a lower chord member 18 extending substantially parallel to the length direction of the bottom plate 14 (perpendicular to the paper surface in the figure). (String material), upper lattice material 20 (lattice material) provided so as to connect between the upper chord material 16 and lower chord material 18, and lower lattice material provided so as to connect between the lower chord material 18 and the bottom plate 14. It is equipped with 22 (lattice material).

これらの上弦材１６及び２つの下弦材１８は、底板１４の長さ方向と略平行に伸びる上弦材１６が、底板１４の上面より上方に所定の間隔をおいて配置され、この上弦材１６と略平行に伸びる２つの下弦材１８が、上弦材１６より下方に、上弦材１６を挟んで底板１４の幅方向に略左右対称に配置されている。 In these upper chord members 16 and the two lower chord members 18, upper chord members 16 extending substantially parallel to the length direction of the bottom plate 14 are arranged above the upper surface of the bottom plate 14 at predetermined intervals, and the upper chord members 16 and the two lower chord members 18 are arranged. Two lower chord members 18 extending substantially in parallel are arranged below the upper chord member 16 substantially symmetrically in the width direction of the bottom plate 14 with the upper chord member 16 interposed therebetween.

そして、上弦材１６と２つの下弦材１８は、図１に示すように、上弦材１６と２つの下弦材１８のそれぞれの間を繋ぐように略ハの字状に設けられた２つの上ラチス材２０によって、互いに連結されている。 Then, as shown in FIG. 1, the upper chord member 16 and the two lower chord members 18 are provided with two upper lattices provided in a substantially C shape so as to connect the upper chord member 16 and the two lower chord members 18 respectively. They are connected to each other by a material 20.

それぞれの上ラチス材２０は、図２に示すように、細長い丸棒状の部材をその長さ途中の複数の位置で曲げて、山部２０ａと谷部２０ｂが傾斜部２０ｃを介して交互に連続するようなジグザグ状に形成されている。 As shown in FIG. 2, each upper lattice material 20 is formed by bending an elongated round bar-shaped member at a plurality of positions in the middle of its length, and the peaks 20a and valleys 20b are alternately continuous via the inclined portions 20c. It is formed in a zigzag shape.

そして、上ラチス材２０は、その山部２０ａにおいては、上記丸棒状の部材が、上弦材１６の外周面に沿って、少なくとも一周以上緩く巻き付くように形成されると共に、その谷部２０ｂにおいては、上記丸棒状の部材が、下弦材１８の外周面に沿って、少なくとも一周以上緩く巻き付くように形成されている。 The upper lattice material 20 is formed so that the round bar-shaped member is loosely wound around the outer peripheral surface of the upper chord member 16 at least one round or more at the mountain portion 20a, and at the valley portion 20b. Is formed so that the round bar-shaped member is loosely wound at least one round or more along the outer peripheral surface of the lower chord member 18.

これにより、上ラチス材２０は、上弦材１６とそれぞれの下弦材１８の間隔を略一定に保ったまま、上弦材１６と下弦材１８のそれぞれの軸線回りに回動することができるようになっており、それにより、２つの上ラチス材２０は、上弦材１６の軸線を中心とした、２つの上ラチス材２０の開き角度を変更することができるようになっている。 As a result, the upper lattice material 20 can rotate around the respective axes of the upper chord material 16 and the lower chord material 18 while keeping the distance between the upper chord material 16 and the lower chord material 18 substantially constant. As a result, the two upper lattice members 20 can change the opening angle of the two upper lattice members 20 about the axis of the upper chord member 16.

また、２つの下弦材１８は、図１に示すように、２つの下弦材１８のそれぞれと底板１４の上面の間を繋ぐように略ハの字状に設けられた２つの下ラチス材２０によって、底板１４の上面に連結されている。 Further, as shown in FIG. 1, the two lower chord members 18 are formed by two lower lattice members 20 provided in a substantially C shape so as to connect each of the two lower chord members 18 and the upper surface of the bottom plate 14. , Is connected to the upper surface of the bottom plate 14.

それぞれの下ラチス材２２は、図２に示すように、細長い丸棒状の部材をその長さ途中の複数の位置で曲げて、山部２２ａと谷部２２ｂが傾斜部２２ｃを介して交互に連続するようなジグザグ状に形成されている。 As shown in FIG. 2, each lower lattice material 22 is formed by bending an elongated round bar-shaped member at a plurality of positions in the middle of its length, and the peaks 22a and valleys 22b are alternately continuous via the inclined portions 22c. It is formed in a zigzag shape.

そして、下ラチス材２２は、その山部２２ａにおいては、上記丸棒状の部材が、下弦材１８の外周面に沿って、少なくとも一周以上緩く巻き付くように形成されると共に、その谷部２２ｂにおいては、上記丸棒状の部材が、底板１４の上面に沿って、底板１４の長さ方向と略平行に伸びるように形成されると共に、それぞれの谷部２２ｂは、その軸線が同一の直線上に位置するように形成されている。 The lower lattice material 22 is formed so that the round bar-shaped member is loosely wound around the outer peripheral surface of the lower chord member 18 at least one round or more at the mountain portion 22a, and at the valley portion 22b. Is formed so that the round bar-shaped member extends along the upper surface of the bottom plate 14 substantially parallel to the length direction of the bottom plate 14, and each valley portion 22b has its axis on the same straight line. It is formed to be located.

これにより、下ラチス材２２は、下弦材１８の軸線回りに回動することができるようになっており、それにより、上ラチス材２０と下ラチス材２２は、下弦材１８の軸線を中心とした、上ラチス材２０と下ラチス材２２の開き角度を変更することができるようになっている。 As a result, the lower lattice material 22 can rotate around the axis of the lower chord material 18, whereby the upper lattice material 20 and the lower lattice material 22 are centered on the axis of the lower chord material 18. The opening angles of the upper lattice material 20 and the lower lattice material 22 can be changed.

このような配筋構造１５が、図１に示すように、底板１４の上面に複数設けられており、これら複数の配筋構造１５は、底板１４の幅方向（図中左右方向）に互いに所定の間隔をおいて略平行に並んで配置されている。 As shown in FIG. 1, a plurality of such bar arrangement structures 15 are provided on the upper surface of the bottom plate 14, and these plurality of bar arrangement structures 15 are predetermined to each other in the width direction (left-right direction in the drawing) of the bottom plate 14. They are arranged side by side in parallel with each other.

そして、それぞれの配筋構造１５は、図２に示すように、底板１４の上面に沿って形成された下ラチス材２２のそれぞれの谷部２２ｂの長さ方向（図中左右方向）の途中部に設けられた軸受部材２４によって、２つの下ラチス材２２のそれぞれが、底板１４の上面に対して、谷部２２ｂの軸線回りに回動可能に設けられている。 Then, as shown in FIG. 2, each bar arrangement structure 15 is an intermediate portion in the length direction (left-right direction in the figure) of each valley portion 22b of the lower lattice material 22 formed along the upper surface of the bottom plate 14. Each of the two lower lattice members 22 is rotatably provided around the axis of the valley portion 22b with respect to the upper surface of the bottom plate 14 by the bearing member 24 provided in.

軸受部材２４は、図１に示すように、所定の厚さを有する細長い板状の部材の長さ方向（図中左右方向）の両端部が底板１４の上面に固定されると共に、その長さ中央部が、下ラチス材２２の谷部２２ｂの外周面に沿うように、谷部２２ｂの直径よりわずかに大きな円筒状に曲げられることにより形成され、その円筒形状の内部に下ラチス材２２の谷部２２ｂが緩く挿通されている。 As shown in FIG. 1, the bearing member 24 has both ends fixed to the upper surface of the bottom plate 14 in the length direction (left-right direction in the drawing) of an elongated plate-shaped member having a predetermined thickness, and the length thereof. The central portion is formed by being bent into a cylindrical shape slightly larger than the diameter of the valley portion 22b so as to be along the outer peripheral surface of the valley portion 22b of the lower lattice material 22, and the lower lattice material 22 is formed inside the cylindrical shape. The valley 22b is loosely inserted.

これにより、下ラチス材２２は、谷部２２ｂの軸線を中心とした、下ラチス材２２と底板１４の上面の開き角度を変更することができるようになっている。 As a result, the lower lattice material 22 can change the opening angle of the upper surface of the lower lattice material 22 and the bottom plate 14 about the axis of the valley portion 22b.

デッキプレート１２の固定部材２６は、図１に示すように、所定の長さを有する丸棒状の部材を、図中下側に開口する略Ｃ字形に曲げたような形状に形成され、略Ｃ字形の開口部と反対側（図中上側）の長さ部分には、水平方向（図中左右方向）に伸びる支持部２６ａが形成され、固定部材２６の略Ｃ字形の開口部を挟んで配置される固定部材２６の両端部には、水平方向に伸びる軸部２６ｂがそれぞれ形成されている。 As shown in FIG. 1, the fixing member 26 of the deck plate 12 is formed in a shape in which a round bar-shaped member having a predetermined length is bent into a substantially C shape that opens downward in the drawing, and is substantially C. A support portion 26a extending in the horizontal direction (left-right direction in the figure) is formed in a length portion opposite to the character-shaped opening (upper side in the figure), and is arranged so as to sandwich a substantially C-shaped opening of the fixing member 26. Shaft portions 26b extending in the horizontal direction are formed at both ends of the fixing member 26 to be formed.

そして、固定部材２６は、図１に示すように、その支持部２６ａが、デッキプレート１２の底板１４の上面に設けられた配筋構造１５の上弦材１６の図中下方の外周面に接触して支持すると共に、それぞれの軸部２６ｂが、底板１４の上面に沿って、底板１４の幅方向（図中左右方向）に略平行に配置されている。 Then, as shown in FIG. 1, the support portion 26a of the fixing member 26 comes into contact with the lower outer peripheral surface of the upper chord member 16 of the bar arrangement structure 15 provided on the upper surface of the bottom plate 14 of the deck plate 12 in the drawing. The shaft portions 26b are arranged along the upper surface of the bottom plate 14 substantially parallel to the width direction (left-right direction in the drawing) of the bottom plate 14.

そして、固定部材２６は、それぞれの軸部２６ｂに設けられた軸受部材２８によって、底板１４の上面に対して、軸部２６ｂの軸線回りに回動可能に設けられている。 The fixing member 26 is rotatably provided around the axis of the shaft portion 26b with respect to the upper surface of the bottom plate 14 by the bearing member 28 provided on each shaft portion 26b.

軸受部材２８は、図２に示すように、所定の厚さを有する細長い板状の部材の長さ方向（図中左右方向）の両端部が底板１４の上面に固定されると共に、その長さ中央部が、固定部材２６の軸部２６ｂの外周面に沿うように、軸部２６ｂの直径よりわずかに大きな円筒状に曲げられることにより形成され、その円筒形状の内部に固定部材２６の軸部２６ｂが緩く挿通されている。 As shown in FIG. 2, the bearing member 28 has both ends fixed to the upper surface of the bottom plate 14 in the length direction (left-right direction in the drawing) of an elongated plate-shaped member having a predetermined thickness, and the length thereof. The central portion is formed by being bent into a cylindrical shape slightly larger than the diameter of the shaft portion 26b so as to be along the outer peripheral surface of the shaft portion 26b of the fixing member 26, and the shaft portion of the fixing member 26 is formed inside the cylindrical shape. 26b is loosely inserted.

このような固定部材２６が、図２に示すように、底板１４の上面に設けられた配筋構造１５の長さ方向（図中左右方向）の両端部に設けられている。 As shown in FIG. 2, such fixing members 26 are provided at both ends in the length direction (left-right direction in the figure) of the bar arrangement structure 15 provided on the upper surface of the bottom plate 14.

これにより、デッキプレート１２は、固定部材２６の支持部２６ａによって、配筋構造１５の上弦材１６の長さ両端部が支持されて、上弦材１６の下方向への移動が制限されるため、上弦材１６の高さ位置が固定され、それに伴い、上ラチス材２０や下ラチス材２２によって上弦材１６や底板１４と連結される下弦材１８の位置も固定されるため、配筋構造１５の上弦材１６と２つの下弦材１８が底板１４の上面より上方に所定の間隔をおいて配置されるようになっている。 As a result, in the deck plate 12, the support portion 26a of the fixing member 26 supports both ends of the length of the upper chord member 16 of the bar arrangement structure 15, and the downward movement of the upper chord member 16 is restricted. The height position of the upper chord member 16 is fixed, and accordingly, the position of the lower chord member 18 connected to the upper chord member 16 and the bottom plate 14 by the upper lattice member 20 and the lower lattice member 22 is also fixed. The upper chord member 16 and the two lower chord members 18 are arranged above the upper surface of the bottom plate 14 at a predetermined interval.

このような本実施の形態に係るデッキプレート１２は、十分な強度や耐食性を有する鋼材を用いて形成され、鋼板により形成された底板１４の上面に、棒鋼により形成された上弦材１６、下弦材１８、上ラチス材２０、下ラチス材２２からなる配筋構造１５と、棒鋼により形成された固定部材２６が、鋼板により形成された軸受部材２４、２８を用いて回動可能に取り付けられることにより、形成することができる。 The deck plate 12 according to the present embodiment is formed of a steel material having sufficient strength and corrosion resistance, and the upper chord member 16 and the lower chord member formed of steel bar are formed on the upper surface of the bottom plate 14 formed of a steel plate. A bar arrangement structure 15 composed of 18, an upper lattice material 20, and a lower lattice material 22 and a fixing member 26 formed of steel bar are rotatably attached by using bearing members 24 and 28 formed of steel plates. , Can be formed.

そして、このような本実施の形態に係るデッキプレート１２は、配筋構造１５を底板１４の上面に折り畳むことにより、デッキプレート１２の高さ方向に占める寸法を小さくすることができる。 The deck plate 12 according to the present embodiment can reduce the size of the deck plate 12 in the height direction by folding the bar arrangement structure 15 on the upper surface of the bottom plate 14.

すなわち、図３（ａ）に示すように、固定部材２６を、その支持部２６ａが配筋構造１５の上弦材１６から離れるように回動させることにより、配筋構造１５の上ラチス材２０と下ラチス材２２が、上弦材１６、下弦材１８、及び下ラチス材２２の軸部２２ｂのそれぞれの軸線回りに回動可能となるため、図３（ｂ）に示すように、底板１４の上面に設けられた複数の配筋構造１５のそれぞれについて、２つの下弦材１８を、互いの間隔が大きくなるように水平方向（図中左右方向）の外側に向けてそれぞれ移動させ、上弦材１６を底板１４に接近するように移動させることにより、配筋構造１５を底板１４の上面に折り畳むことができる。 That is, as shown in FIG. 3A, the fixing member 26 is rotated so that the support portion 26a thereof is separated from the upper chord member 16 of the bar arrangement structure 15, so that the fixing member 26 and the upper lattice member 20 of the bar arrangement structure 15 are rotated. Since the lower lattice material 22 can rotate around the respective axes of the upper chord material 16, the lower chord material 18, and the shaft portion 22b of the lower lattice material 22, as shown in FIG. 3B, the upper surface of the bottom plate 14 For each of the plurality of bar arrangement structures 15 provided in the above, the two lower chord members 18 are moved outward in the horizontal direction (left-right direction in the figure) so as to increase the distance between them, and the upper chord member 16 is moved. The bar arrangement structure 15 can be folded onto the upper surface of the bottom plate 14 by moving it so as to approach the bottom plate 14.

そして、底板１４の上面に設けられた全ての配筋構造１５を折り畳むことにより、デッキプレート１２の高さ方向に占める寸法を小さくすることができる。 Then, by folding all the bar arrangement structures 15 provided on the upper surface of the bottom plate 14, the size of the deck plate 12 in the height direction can be reduced.

これにより、デッキプレート１２をトラック等に積み込む際に、より多くのデッキプレート１２を積み重ねることができ、それにより、運搬作業の回数を減らして、その分の運送費を削減することができると共に、その分のトラック等への積み込みや建築現場での積み下ろしの作業の回数も減らすことができる。 As a result, when the deck plate 12 is loaded on a truck or the like, a larger number of deck plates 12 can be stacked, whereby the number of transportation operations can be reduced and the transportation cost can be reduced accordingly. It is possible to reduce the number of times of loading on trucks and loading and unloading at construction sites.

また、折り畳まれた状態（図３（ａ）参照）の配筋構造１５は、上弦材１６を鉛直上方向に持ち上げる操作を行うだけで、元の状態（図１参照）に戻すことができるため、デッキプレート１２を建築現場へ搬入して設置した後の作業も非常に単純なものとなっており、そのような作業で作業全体の効率が低下することを防止できる。 Further, the bar arrangement structure 15 in the folded state (see FIG. 3A) can be returned to the original state (see FIG. 1) only by lifting the upper chord member 16 vertically upward. The work after the deck plate 12 is carried into the construction site and installed is also very simple, and it is possible to prevent the efficiency of the entire work from being lowered by such work.

このように、本発明の実施の形態に係るデッキプレート１２によれば、運搬作業の効率を向上させると共に、作業コストの低減を図ることができる。 As described above, according to the deck plate 12 according to the embodiment of the present invention, it is possible to improve the efficiency of the transportation work and reduce the work cost.

図４ないし図６は、本発明の第２の実施の形態に係るデッキプレート３２について説明するために参照する図である。なお、前記第１の実施の形態に係るデッキプレート１２と同様の部分には、一部を除き同じ符号を付して説明するものとする。 4 to 6 are views for reference to explain the deck plate 32 according to the second embodiment of the present invention. It should be noted that the same parts as the deck plate 12 according to the first embodiment will be described with the same reference numerals except for a part.

本実施の形態に係るデッキプレート３２は、前記第１の実施の形態に係るデッキプレート１２における配筋構造１５（図１参照）の代わりに、図４及び図５に示すような配筋構造３５を備えている点において、前記第１の実施の形態に係るデッキプレート１２とはその構成が異なるものである。 The deck plate 32 according to the present embodiment has a bar arrangement structure 35 as shown in FIGS. 4 and 5 instead of the bar arrangement structure 15 (see FIG. 1) in the deck plate 12 according to the first embodiment. The structure of the deck plate 12 is different from that of the deck plate 12 according to the first embodiment.

デッキプレート３２の配筋構造３５は、図４に示すように、前記第１の実施の形態に係るデッキプレート１２の配筋構造１５と同様に、底板１４の長さ方向（図の紙面に垂直方向）と略平行に伸びる丸棒状の上弦材１６及び２つの下弦材１８と、これらの上弦材１６と２つの下弦材１８のそれぞれの間を繋ぐように略ハの字状に設けられた２つの上ラチス材２０を備えている。 As shown in FIG. 4, the reinforcement structure 35 of the deck plate 32 is the same as the reinforcement structure 15 of the deck plate 12 according to the first embodiment, in the length direction of the bottom plate 14 (perpendicular to the paper surface in the drawing). A round bar-shaped upper chord member 16 and two lower chord members 18 extending substantially parallel to the direction), and 2 provided in a substantially C shape so as to connect between the upper chord members 16 and the two lower chord members 18. It is provided with two upper lattice materials 20.

そしてこれらに加えて、配筋構造３５は、上弦材１６と略平行に伸びる丸棒状の軸部材３６（弦材）と、この軸部材３６と２つの下弦材１８のそれぞれの間を繋ぐように設けられた２つの下ラチス材３８（ラチス材）を備えている。 In addition to these, the bar arrangement structure 35 connects between the round bar-shaped shaft member 36 (string material) extending substantially parallel to the upper chord member 16 and each of the shaft member 36 and the two lower chord members 18. It is provided with two lower lattice materials 38 (lattice materials) provided.

これらの上弦材１６及び２つの下弦材１８と及び軸部材３６は、図４に示すように、底板１４の長さ方向と略平行に伸びる上弦材１６が、底板１４の上面より上方に所定の間隔をおいて配置され、この上弦材１６と略平行に伸びる軸部材３６が、上弦材１６の下方に底板１４の上面に沿って配置され、これらの上弦材１６や軸部材３６と略平行に伸びる２つの下弦材１８が、上弦材１６と軸部材３６の略中間の高さ位置に、上弦材１６と軸部材３６の中心を通る中央線を挟んで底板１４の幅方向（図中左右方向）に略左右対称に配置されている。 As shown in FIG. 4, the upper chord member 16 and the two lower chord members 18 and the shaft member 36 have an upper chord member 16 extending substantially parallel to the length direction of the bottom plate 14 and a predetermined upper chord member 16 above the upper surface of the bottom plate 14. Shaft members 36, which are arranged at intervals and extend substantially parallel to the upper chord member 16, are arranged below the upper chord member 16 along the upper surface of the bottom plate 14, and are substantially parallel to the upper chord member 16 and the shaft member 36. The two extending lower chord members 18 are located at a height substantially intermediate between the upper chord member 16 and the shaft member 36, sandwiching the center line passing through the center of the upper chord member 16 and the shaft member 36, and the width direction of the bottom plate 14 (left-right direction in the drawing). ) Are arranged almost symmetrically.

そして、２つの下弦材１８と軸部材３６は、図４に示すように、２つの下弦材１８のそれぞれと軸部材３６の間を繋ぐように略逆ハの字状に設けられた２つの下ラチス材３８によって、互いに連結されている。 Then, as shown in FIG. 4, the two lower chord members 18 and the shaft member 36 are provided in a substantially inverted C shape so as to connect each of the two lower chord members 18 and the shaft member 36. They are connected to each other by a lattice material 38.

それぞれの下ラチス材３８は、図５に示すように、細長い丸棒状の部材をその長さ途中の複数の位置で曲げて、山部３８ａと谷部３８ｂが傾斜部３８ｃを介して交互に連続するようなジグザグ状に形成されている。 As shown in FIG. 5, each lower lattice member 38 is formed by bending an elongated round bar-shaped member at a plurality of positions in the middle of its length, and the peaks 38a and valleys 38b are alternately continuous via the inclined portions 38c. It is formed in a zigzag shape.

そして、下ラチス材３８は、その山部３８ａにおいては、上記丸棒状の部材が、下弦材１８の外周面に、少なくとも一周以上緩く巻き付くように形成されると共に、その谷部３８ｂにおいては、上記丸棒状の部材が、軸部材３６の外周面に、少なくとも一周以上緩く巻き付くように形成されている。 The lower lattice member 38 is formed so that the round bar-shaped member is loosely wound around the outer peripheral surface of the lower chord member 18 at least one round or more at the mountain portion 38a, and at the valley portion 38b. The round bar-shaped member is formed so as to loosely wrap around the outer peripheral surface of the shaft member 36 at least once.

これにより、下ラチス材３８は、それぞれの下弦材１８と軸部材３６の間隔を略一定に保ったまま、それぞれの下弦材１８と軸部材３６の軸線回りに回動することができるようになっている。 As a result, the lower lattice member 38 can rotate around the axis of each of the lower chord member 18 and the shaft member 36 while keeping the distance between the lower chord member 18 and the shaft member 36 substantially constant. ing.

そして、それにより、２つの下ラチス材３８は、軸部材３６の軸線を中心とした、２つの下ラチス材３８の開き角度を変更することができると共に、上ラチス材２０と下ラチス材３８は、下弦材１８の軸線を中心とした、上ラチス材２０と下ラチス材３８の開き角度を変更することができるようになっている。 As a result, the two lower lattice materials 38 can change the opening angle of the two lower lattice materials 38 about the axis of the shaft member 36, and the upper lattice material 20 and the lower lattice material 38 can be changed. , The opening angle of the upper lattice material 20 and the lower lattice material 38 can be changed around the axis of the lower chord member 18.

このような配筋構造３５が、図４に示すように、底板１４の上面に複数設けられており、これら複数の配筋構造３５は、底板１４の幅方向（図中左右方向）に互いに所定の間隔をおいて略平行に並んで配置されている。 As shown in FIG. 4, a plurality of such bar arrangement structures 35 are provided on the upper surface of the bottom plate 14, and these plurality of bar arrangement structures 35 are predetermined to each other in the width direction (left-right direction in the drawing) of the bottom plate 14. They are arranged side by side in parallel with each other.

そして、それぞれの配筋構造３５は、図５に示すように、底板１４の上面に沿って形成された軸部材３６の長さ方向（図中左右方向）の途中部に設けられた複数の軸受部材４０によって、軸部材３６が、底板１４の上面に対して、軸部材３６の軸線回りに回動可能に設けられている。 As shown in FIG. 5, each of the bar arrangement structures 35 is provided with a plurality of bearings provided in the middle of the shaft member 36 formed along the upper surface of the bottom plate 14 in the length direction (left-right direction in the drawing). The member 40 is provided with the shaft member 36 rotatably around the axis of the shaft member 36 with respect to the upper surface of the bottom plate 14.

軸受部材４０は、図４に示すように、所定の厚さを有する細長い板状の部材の長さ方向（図中左右方向）の両端部が底板１４の上面に固定されると共に、その長さ中央部が、軸部材３６の外周面に沿うように、軸部材３６の直径よりわずかに大きな円筒状に曲げられることにより形成され、その円筒形状の内部に軸部材３６が緩く挿通されている。 As shown in FIG. 4, the bearing member 40 has both ends fixed to the upper surface of the bottom plate 14 in the length direction (left-right direction in the drawing) of an elongated plate-shaped member having a predetermined thickness, and the length thereof. The central portion is formed by being bent into a cylindrical shape slightly larger than the diameter of the shaft member 36 so as to be along the outer peripheral surface of the shaft member 36, and the shaft member 36 is loosely inserted into the cylindrical shape.

これにより、下ラチス材３８は、軸部材３６の軸線を中心とした、下ラチス材３８と底板１４の上面の角度を変更することができるようになっている。 As a result, the lower lattice material 38 can change the angle between the lower lattice material 38 and the upper surface of the bottom plate 14 about the axis of the shaft member 36.

その他の構成は、前記第１の実施の形態に係るデッキプレート１２と同様であるため、このような本発明の第２の実施の形態に係るデッキプレート３２を用いることによっても、運搬作業の効率を向上させると共に、作業コストの低減を図ることができる。 Since other configurations are the same as those of the deck plate 12 according to the first embodiment, the efficiency of the transportation work can also be achieved by using the deck plate 32 according to the second embodiment of the present invention. It is possible to improve the work cost and reduce the work cost.

そして、このような配筋構造３５を備えた、本実施の形態に係るデッキプレート３２においては、図６（ａ）に示すように、固定部材２６を、その支持部２６ａが配筋構造３５の上弦材１６から離れるように回動させることにより、配筋構造３５の上ラチス材２０と下ラチス材３８が、上弦材１６、下弦材１８、及び軸部材３６のそれぞれの軸線回りに回動可能となるため、図６（ｂ）に示すように、上弦材１６を底板１４に接近するように移動させることにより、配筋構造３５を底板１４の上面に折り畳むことができる。 Then, in the deck plate 32 according to the present embodiment provided with such a bar arrangement structure 35, as shown in FIG. 6A, the fixing member 26 is provided with the support portion 26a of the bar arrangement structure 35. By rotating the upper chord member 16 away from the upper chord member 16, the upper lattice member 20 and the lower lattice member 38 of the bar arrangement structure 35 can rotate around the respective axes of the upper chord member 16, the lower chord member 18, and the shaft member 36. Therefore, as shown in FIG. 6B, the bar arrangement structure 35 can be folded on the upper surface of the bottom plate 14 by moving the upper chord member 16 so as to approach the bottom plate 14.

図７及び図８は、本発明の第３の実施の形態に係るデッキプレート４２について説明するために参照する図である。なお、前記第１の実施の形態に係るデッキプレート１２と同様の部分には、一部を除き同じ符号を付して説明するものとする。 7 and 8 are views for reference to explain the deck plate 42 according to the third embodiment of the present invention. It should be noted that the same parts as the deck plate 12 according to the first embodiment will be described with the same reference numerals except for a part.

本実施の形態に係るデッキプレート４２は、前記第１の実施の形態に係るデッキプレート１２における底板１４（図１参照）の代わりに、図７（ａ）に示すような底板４４を備えている点において、前記第１の実施の形態に係るデッキプレート１２とはその構成が異なるものである。 The deck plate 42 according to the present embodiment includes a bottom plate 44 as shown in FIG. 7 (a) instead of the bottom plate 14 (see FIG. 1) in the deck plate 12 according to the first embodiment. In that respect, the configuration is different from that of the deck plate 12 according to the first embodiment.

デッキプレート４２の底板４４は、図７（ａ）に示すように、その上面に、底板４４の上面が下方向へ向けて凹んでその高さ位置が低くなるような谷底面４４ａが複数形成されており、それぞれの谷底面４４ａが、底板４４の長さ方向に沿って形成されると共に、複数の谷底面４４ａが、底板４４の幅方向に互いに所定の間隔をおいて略平行に並ぶような、波板状に形成されている。 As shown in FIG. 7A, the bottom plate 44 of the deck plate 42 is formed with a plurality of valley bottom surfaces 44a such that the upper surface of the bottom plate 44 is recessed downward and its height position is lowered. Each valley bottom surface 44a is formed along the length direction of the bottom plate 44, and a plurality of valley bottom surfaces 44a are arranged substantially parallel to each other in the width direction of the bottom plate 44 at predetermined intervals. , It is formed like a corrugated sheet.

そして、底板４４の上面には、細長い丸棒状の部材をその長さ途中の複数の位置で曲げて形成されたスペーサー部材４６が、底板４４の幅方向に沿って伸びるように配置されており、スペーサー部材４６の長さ途中部には、底板４４の上面より上方に所定の間隔をおいて、底板４４の幅方向に伸びる取付部４６ａが複数形成されている。 Then, on the upper surface of the bottom plate 44, spacer members 46 formed by bending elongated round bar-shaped members at a plurality of positions in the middle of the length are arranged so as to extend along the width direction of the bottom plate 44. A plurality of mounting portions 46a extending in the width direction of the bottom plate 44 are formed in the middle portion of the length of the spacer member 46 at predetermined intervals above the upper surface of the bottom plate 44.

そして、図７（ｂ）に示すように、そのようなスペーサー部材４６が、底板４４の長さ方向（図中左右方向）に互いに所定の間隔をおいて略平行に並ぶように複数配置され、溶接等によって底板４４の上面に固定されている。 Then, as shown in FIG. 7B, a plurality of such spacer members 46 are arranged so as to be arranged substantially parallel to each other at predetermined intervals in the length direction (left-right direction in the figure) of the bottom plate 44. It is fixed to the upper surface of the bottom plate 44 by welding or the like.

そして、前記第１の実施の形態に係るデッキプレート１２（図１参照）と同様の配筋構造１５が、底板４４の上面に設けられたスペーサー部材４６を介して、底板４４の上面より上方に所定の間隔をおいて取り付けられている。 Then, a bar arrangement structure 15 similar to the deck plate 12 (see FIG. 1) according to the first embodiment is provided above the upper surface of the bottom plate 44 via a spacer member 46 provided on the upper surface of the bottom plate 44. It is installed at a predetermined interval.

すなわち、配筋構造１５は、図８（ａ）に示すように、そのラチス材２２の谷部２２ｂが、スペーサー部材４６の取付部４６ａの長さ途中部に形成された凹部４６ｂに係合するように、スペーサー部材４６の上に配置されると共に、図７（ｂ）に示すように、ラチス材２２のそれぞれの谷部２２ｂの長さ方向（図中左右方向）の途中部に設けられた軸受部材４８によって、下ラチス材２２が、スペーサー部材４６の取付部４６ａに対して、谷部２２ｂの軸線回りに回動可能に設けられている。 That is, as shown in FIG. 8A, the bar arrangement structure 15 engages the valley portion 22b of the lattice material 22 with the recess 46b formed in the middle portion of the length of the mounting portion 46a of the spacer member 46. As shown in the above, the spacer member 46 is arranged, and as shown in FIG. 7B, it is provided in the middle of each valley portion 22b of the lattice material 22 in the length direction (left-right direction in the drawing). The bearing member 48 is provided with the lower lattice material 22 rotatably around the axis of the valley portion 22b with respect to the mounting portion 46a of the spacer member 46.

軸受部材４８は、所定の長さを有する丸棒状の部材の長さ中央部４８ａが、図８（ａ）に示すように、下ラチス材２２の谷部２２ｂの外周面に沿うように、谷部２２ｂの直径よりわずかに大きな略逆Ｕ字状に曲げられると共に、図８（ｂ）に示すように、この中央部４８ａの長さ両端部から伸びる軸受部材４８のそれぞれの端部４８ｂが、スペーサー部材４６の取付部４６ａの外周面に沿うように略Ｕ字状に曲げられて形成されている。 The bearing member 48 has a valley so that the central portion 48a of the length of the round bar-shaped member having a predetermined length is along the outer peripheral surface of the valley portion 22b of the lower lattice material 22 as shown in FIG. 8A. It is bent in a substantially inverted U shape slightly larger than the diameter of the portion 22b, and as shown in FIG. 8B, each end portion 48b of the bearing member 48 extending from both ends of the length of the central portion 48a is formed. It is formed by being bent in a substantially U shape along the outer peripheral surface of the mounting portion 46a of the spacer member 46.

そして、軸受部材４８の中央部４８ａの略逆Ｕ字形状の内側部に下ラチス材２２の谷部２２ｂが緩く挿通されると共に、軸受部材４８の略Ｕ字形状の端部４８ｂがスペーサー部材４６の取付部４６ａに係止することにより、下ラチス材２２の谷部２２ｂがその軸線回りに回動可能に設けられている。 Then, the valley portion 22b of the lower lattice material 22 is loosely inserted into the substantially inverted U-shaped inner portion of the central portion 48a of the bearing member 48, and the substantially U-shaped end portion 48b of the bearing member 48 is the spacer member 46. By locking to the mounting portion 46a of the lower lattice material 22, the valley portion 22b of the lower lattice material 22 is rotatably provided around its axis.

その他の構成は、前記第１の実施の形態に係るデッキプレート１２と同様であるため、このような本発明の第３の実施の形態に係るデッキプレート４２を用いることによっても、運搬作業の効率を向上させると共に、作業コストの低減を図ることができる。 Since other configurations are the same as those of the deck plate 12 according to the first embodiment, the efficiency of the transportation work can also be achieved by using the deck plate 42 according to the third embodiment of the present invention. It is possible to improve the work cost and reduce the work cost.

そして、このような底板４４を備えた、本実施の形態に係るデッキプレート４２においては、図７（ａ）に示すように、底板４４の上面にスペーサー部材２６を設け、そのスペーサー部材２６に配筋構造１５を取り付けることにより、配筋構造１５の上弦材１６や下弦材１８と底板４４の上面の間に、コンクリートを充填するためのより大きな空間（かぶり厚さ）を確保することができるため、上弦材１６や下弦材１８とコンクリートをより有効に付着させると共に、上弦材１６や下弦材１８の腐食を防止し、鉄筋コンクリート構造の強度を向上することができる。 Then, in the deck plate 42 according to the present embodiment provided with such a bottom plate 44, as shown in FIG. 7A, a spacer member 26 is provided on the upper surface of the bottom plate 44 and arranged on the spacer member 26. By attaching the reinforcing bar structure 15, a larger space (cover thickness) for filling concrete can be secured between the upper chord member 16 and the lower chord member 18 of the reinforcing bar structure 15 and the upper surface of the bottom plate 44. The concrete can be more effectively adhered to the upper chord member 16 and the lower chord member 18, and the corrosion of the upper chord member 16 and the lower chord member 18 can be prevented, and the strength of the reinforced concrete structure can be improved.

図９は、本発明の第４の実施の形態に係るデッキプレート５２について説明するために参照する図である。なお、前記第２及び第３の実施の形態に係るデッキプレート３２，４２と同様の部分には、一部を除き同じ符号を付して説明するものとする。 FIG. 9 is a diagram referred to for explaining the deck plate 52 according to the fourth embodiment of the present invention. The same parts as those of the deck plates 32 and 42 according to the second and third embodiments will be described with the same reference numerals except for a part.

本実施の形態に係るデッキプレート５２は、前記第２の実施の形態に係るデッキプレート３２における底板１４（図４参照）の代わりに、前記第３の実施の形態に係るデッキプレート４２における底板４４（図７（ａ）参照）を備えている点において、前記第２の実施の形態に係るデッキプレート３２とはその構成が異なるものである。 The deck plate 52 according to the third embodiment replaces the bottom plate 14 (see FIG. 4) in the deck plate 32 according to the second embodiment with the bottom plate 44 in the deck plate 42 according to the third embodiment. The configuration is different from that of the deck plate 32 according to the second embodiment in that (see FIG. 7A) is provided.

すなわち、デッキプレート５２においては、図９（ａ）に示すように、前記第３の実施の形態に係るデッキプレート４２（図７（ａ）参照）と同様の底板４４の上面に設けられたスペーサー部材４６の取付部４６ａに、前記第２の実施の形態に係るデッキプレート３２（図４参照）と同様の配筋構造３５が取り付けられている。 That is, in the deck plate 52, as shown in FIG. 9A, a spacer provided on the upper surface of the bottom plate 44 similar to the deck plate 42 (see FIG. 7A) according to the third embodiment. A bar arrangement structure 35 similar to the deck plate 32 (see FIG. 4) according to the second embodiment is attached to the attachment portion 46a of the member 46.

そして、配筋構造３５は、図９（ｂ）に示すように、その軸部材３６の長さ方向（図中左右方向）の途中部に設けられた複数の軸受部材５４によって、下ラチス材３８が、スペーサー部材４６の取付部４６ａに対して、軸部材３６の軸線回りに回動可能に設けられている。 Then, as shown in FIG. 9B, the bar arrangement structure 35 is formed of the lower lattice material 38 by a plurality of bearing members 54 provided in the middle of the shaft member 36 in the length direction (left-right direction in the drawing). Is rotatably provided around the axis of the shaft member 36 with respect to the mounting portion 46a of the spacer member 46.

軸受部材５４は、前記第３の実施の形態に係るデッキプレート４２の軸受部材４８（図８参照）と同様の形状に形成されており、所定の長さを有する丸棒状の部材の長さ中央部が、軸部材３６の外周面に沿うように、軸部材３６の直径よりわずかに大きな略逆Ｕ字状に曲げられると共に、この中央部の長さ両端部から伸びる軸受部材５４のそれぞれの端部が、スペーサー部材４６の取付部４６ａの外周面に沿うように略Ｕ字状に曲げられて形成されている。 The bearing member 54 is formed in the same shape as the bearing member 48 (see FIG. 8) of the deck plate 42 according to the third embodiment, and has a length center of a round bar-shaped member having a predetermined length. The portion is bent in a substantially inverted U shape slightly larger than the diameter of the shaft member 36 so as to be along the outer peripheral surface of the shaft member 36, and each end of the bearing member 54 extending from both ends of the length of the central portion. The portion is formed by being bent in a substantially U shape along the outer peripheral surface of the mounting portion 46a of the spacer member 46.

そして、軸受部材５４の中央部の略逆Ｕ字形状の内側部に軸部材３６が緩く挿通されると共に、軸受部材５４の略Ｕ字形状の端部がスペーサー部材４６の取付部４６ａに係止することにより、軸部材３６がその軸線回りに回動可能に設けられている。 Then, the shaft member 36 is loosely inserted into the substantially inverted U-shaped inner portion of the central portion of the bearing member 54, and the substantially U-shaped end portion of the bearing member 54 is locked to the mounting portion 46a of the spacer member 46. By doing so, the shaft member 36 is rotatably provided around the axis.

その他の構成は、前記第２の実施の形態に係るデッキプレート３２と同様であるため、このような本発明の第４の実施の形態に係るデッキプレート５２を用いることによっても、運搬作業の効率を向上させると共に、作業コストの低減を図ることができる。 Since other configurations are the same as those of the deck plate 32 according to the second embodiment, the efficiency of the transportation work can also be achieved by using the deck plate 52 according to the fourth embodiment of the present invention. It is possible to improve the work cost and reduce the work cost.

そして、このような本実施の形態に係るデッキプレート５２においては、図７に示すデッキプレート４２と同様に、配筋構造３５の上弦材１６、下弦材１８、及び軸部材３６と底板４４の上面の間に、コンクリートを充填するためのより大きな空間（かぶり厚さ）を確保できるため、上弦材１６、下弦材１８、及び軸部材３６とコンクリートをより有効に付着させると共に、上弦材１６、下弦材１８、及び軸部材３６の腐食を防止し、鉄筋コンクリート構造の強度を向上することができる。 Then, in the deck plate 52 according to the present embodiment, similarly to the deck plate 42 shown in FIG. 7, the upper chord member 16 and the lower chord member 18 of the reinforcing bar structure 35, and the upper surfaces of the shaft member 36 and the bottom plate 44. Since a larger space (cover thickness) for filling concrete can be secured between the two, the upper chord member 16, the lower chord member 18, and the shaft member 36 and the concrete are more effectively adhered to each other, and the upper chord member 16, the lower chord member 16 and the lower chord are attached. Corrosion of the material 18 and the shaft member 36 can be prevented, and the strength of the reinforced concrete structure can be improved.

なお、本発明は、前記実施の形態のみに限定されるものではなく、本発明の目的を達成することができる範囲内であれば、種々の変更が可能である。 The present invention is not limited to the above-described embodiment, and various modifications can be made as long as the object of the present invention can be achieved.

例えば、前記第１の実施の形態に係るデッキプレート１２においては、配筋構造１５のラチス材（上ラチス材２０、下ラチス材２２）は、一つの細長い丸棒状の部材をジグザグ状に曲げて形成されていたが、ラチス材は、上弦材１６と下弦材１７の間を繋ぐような形状であれば他のどのような形状であってもよく、また、ラチス材が複数の部材で構成されていてもよい。 For example, in the deck plate 12 according to the first embodiment, the lattice material (upper lattice material 20, lower lattice material 22) of the bar arrangement structure 15 is made by bending one elongated round bar-shaped member in a zigzag shape. Although it was formed, the lattice material may have any other shape as long as it has a shape that connects the upper chord material 16 and the lower chord material 17, and the lattice material is composed of a plurality of members. You may be.

また、前記実施の形態に係るデッキプレート１２においては、配筋構造１５のラチス材（上ラチス材２０、下ラチス材２２）は、その丸棒状の部材を、弦材（上弦材１６、下弦材１８）の外周面に巻付けることにより、これらの弦材の軸線回りに回動可能に設けられていたが、ラチス材はこれらの弦材の軸線回りに回動可能であれば他のどのような形態で取り付けられていてもよく、例えば、ラチス材の上下両端部に円筒状やリング状の部材を固定して、そこに弦材が緩く挿通されるようになっていてもよい。 Further, in the deck plate 12 according to the above-described embodiment, the lattice material (upper lattice material 20, lower lattice material 22) of the reinforcing bar arrangement structure 15 has a round bar-shaped member as a chord material (upper chord material 16, lower chord material 22). By wrapping it around the outer peripheral surface of 18), it was provided so as to be rotatable around the axis of these chords, but if the lattice material is rotatable around the axis of these chords, what else? For example, a cylindrical or ring-shaped member may be fixed to the upper and lower ends of the lattice material so that the chord material can be loosely inserted therethrough.

また、前記実施の形態に係るデッキプレート１２においては、細長い板状の部材を曲げて形成された軸受部材２４によって、配筋構造１５が底板１４の上面に取り付けられていたが、配筋構造１５は、底板１４の上面に対して、下ラチス材２２が回動可能であればどのような形態で取り付けられていてもよく、例えば、円筒状やリング状の軸受部材を用いてもよく、また、そのような軸受形状が底板１４の上面に予め一体的に形成されていてもよい。 Further, in the deck plate 12 according to the embodiment, the reinforcing bar structure 15 is attached to the upper surface of the bottom plate 14 by the bearing member 24 formed by bending an elongated plate-shaped member, but the reinforcing bar structure 15 May be attached to the upper surface of the bottom plate 14 in any form as long as the lower lattice material 22 is rotatable, and for example, a cylindrical or ring-shaped bearing member may be used. , Such a bearing shape may be integrally formed in advance on the upper surface of the bottom plate 14.

また、前記実施の形態に係るデッキプレート１２においては、略Ｃ字形に形成された固定部材２６が、底板１４の上面に回動可能に設けられていたが、固定部材によって、配筋構造１５の上弦材１６の下方向への移動が制限されて、上弦材１６の高さ位置が固定することができれば、他のどのような形態であってもよい。 Further, in the deck plate 12 according to the above-described embodiment, the fixing member 26 formed in a substantially C shape is rotatably provided on the upper surface of the bottom plate 14, but the fixing member provides the reinforcing bar structure 15. Any other form may be used as long as the downward movement of the upper chord member 16 is restricted and the height position of the upper chord member 16 can be fixed.

例えば、デッキプレート１２においては、図１に示すように、１つの固定部材２６が１つの配筋構造１５の上弦材１６を支持するようになっているが、固定部材２６の支持部２６ａの長さ寸法を大きくして、１つの固定部材２６が２つ以上の配筋構造１５の上弦材１６をまとめて支持するようにしてもよい。 For example, in the deck plate 12, as shown in FIG. 1, one fixing member 26 supports one upper chord member 16 of the bar arrangement structure 15, but the length of the support portion 26a of the fixing member 26 The dimension may be increased so that one fixing member 26 collectively supports the upper chord members 16 of the two or more bar arrangement structures 15.

また、デッキプレート１２においては、図１に示すように、固定部材２６が配筋構造１５の上弦材１６を下側から支持することにより、その高さ位置が固定されるようになっているが、固定部材に形成された嵌合部に、上弦材１６が嵌合することにより、その高さ位置が固定されるようにしてもよく、また、針金等を用いて固定部材に上弦材１６を結束することにより、その高さ位置が固定されるようにしてもよいし、 Further, in the deck plate 12, as shown in FIG. 1, the fixing member 26 supports the upper chord member 16 of the bar arrangement structure 15 from below, so that the height position thereof is fixed. , The height position of the upper chord member 16 may be fixed by fitting the upper chord member 16 into the fitting portion formed on the fixing member, or the upper chord member 16 may be attached to the fixing member by using a wire or the like. By bundling, the height position may be fixed, or

また、デッキプレート１２においては、図１に示すように、固定部材２６は、軸受部材２８によって底板１４の上面に予め取り付けられているが、固定部材を別部材として、後から配筋構造１５に取り付けるようにしてもよい。 Further, in the deck plate 12, as shown in FIG. 1, the fixing member 26 is previously attached to the upper surface of the bottom plate 14 by the bearing member 28, but the fixing member is used as a separate member and is later attached to the bar arrangement structure 15. It may be attached.

また、前記第１ないし第４の実施の形態に係るデッキプレート１２，３２，４２，５２は、図１１に示すような床スラブ１を形成するために用いられるだけでなく、例えば壁材、柱材、屋根材等、他の鉄筋コンクリートの構造物を形成するために用いてもよい。 Further, the deck plates 12, 32, 42, 52 according to the first to fourth embodiments are not only used for forming the floor slab 1 as shown in FIG. 11, but also for example, wall materials and columns. It may be used to form other reinforced concrete structures such as materials and roofing materials.

１床スラブ
２デッキプレート
３コンクリート
４底板
４ａ連結雄部
４ｂ連結雌部
５配筋構造
６上弦材
７下弦材
８ラチス材
８ａ山部
８ｂ谷部
８ｃ傾斜部
９型枠
１２デッキプレート
１４底板
１４ａ連結雄部
１４ｂ連結雌部
１５配筋構造
１６上弦材
１８下弦材
２０上ラチス材
２０ａ山部
２０ｂ谷部
２０ｃ傾斜部
２２下ラチス材
２２ａ山部
２２ｂ谷部
２２ｃ傾斜部
２４軸受部材
２６固定部材
２６ａ支持部
２６ｂ軸部
２８軸受部材
３２デッキプレート
３５配筋構造
３６軸部材
３８下ラチス材
３８ａ山部
３８ｂ谷部
３８ｃ傾斜部
４０軸受部材
４２デッキプレート
４４底板
４４ａ谷底面
４６スペーサー部材
４６ａ取付部
４６ｂ凹部
４８軸受部材
４８ａ中央部
４８ｂ端部
５２デッキプレート
５４軸受部材 1 Floor slab 2 Deck plate 3 Concrete 4 Bottom plate 4a Connecting male part 4b Connecting female part 5 Reinforcing structure 6 Upper chord material 7 Lower chord material 8 Lattice material 8a Mountain part 8b Valley part 8c Inclined part 9 Formwork 12 Deck plate 14 Bottom plate 14a Male part 14b Connecting female part 15 Reinforcing structure 16 Upper chord material 18 Lower chord material 20 Upper lattice material 20a Mountain part 20b Valley part 20c Inclined part 22 Lower lattice material 22a Mountain part 22b Valley part 22c Inclined part 24 Bearing member 26 Fixing member 26a Support Part 26b Shaft 28 Bearing member 32 Deck plate 35 Reinforcement structure 36 Shaft member 38 Lower lattice material 38a Mountain part 38b Valley part 38c Inclined part 40 Bearing member 42 Deck plate 44 Bottom plate 44a Valley bottom surface 46 Spacer member 46a Mounting part 46b Recess Bearing member 48a Central part 48b End part 52 Deck plate 54 Bearing member

Claims

With the bottom plate
A bar arrangement structure having a plurality of chord members provided on the upper surface of the bottom plate and extending in the length direction of the bottom plate, and a plurality of lattice members rotatably provided around the axis of the chord member.
A deck plate including a fixing member for fixing the vertical position of the chord member of the bar arrangement structure.

The bar arrangement structure is
An upper chord member arranged above the upper surface of the bottom plate at a predetermined interval,
Below the upper chord member, two lower chord members arranged substantially symmetrically in the width direction of the bottom plate with the upper chord member interposed therebetween.
Two upper lattice materials provided so as to connect between the upper chord material and the two lower chord materials, respectively.
Each of the two lower chord members and two lower lattice members provided so as to connect between the upper surface of the bottom plate are provided.
The deck plate according to claim 1, wherein each of the two lower lattice materials is rotatably provided with respect to the upper surface of the bottom plate.

The bar arrangement structure is
An upper chord member arranged above the upper surface of the bottom plate at a predetermined interval,
A shaft member extending below the upper chord member substantially in parallel with the upper chord member,
Two lower chord members arranged substantially symmetrically in the width direction of the bottom plate with a center line passing through the center of the upper chord member and the shaft member sandwiched between the upper chord member and the shaft member.
Two upper lattice materials provided so as to connect between the upper chord material and the two lower chord materials, respectively.
Each of the two lower chord members and two lower lattice members provided so as to connect between the shaft members are provided.
The deck plate according to claim 1, wherein the shaft member is rotatably provided with respect to the upper surface of the bottom plate.

A spacer member is provided on the upper surface of the bottom plate.
The deck plate according to any one of claims 1 to 3, wherein the bar arrangement structure is provided above the upper surface of the bottom plate at a predetermined interval via the spacer member.

The fixing member is rotatably provided with respect to the upper surface of the bottom plate.
It is characterized in that the support portion of the fixing member contacts and supports the chord member of the bar arrangement structure so that the vertical position of the chord member of the bar arrangement structure is fixed. The deck plate according to any one of claims 1 to 4.