JPH062360A - Truss beam - Google Patents
Truss beamInfo
- Publication number
- JPH062360A JPH062360A JP15834692A JP15834692A JPH062360A JP H062360 A JPH062360 A JP H062360A JP 15834692 A JP15834692 A JP 15834692A JP 15834692 A JP15834692 A JP 15834692A JP H062360 A JPH062360 A JP H062360A
- Authority
- JP
- Japan
- Prior art keywords
- truss beam
- chord member
- diagonal
- lower chord
- strands
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Landscapes
- Rod-Shaped Construction Members (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、トラス梁にかかり、特
に、屋根等の建築構造物、人工地盤等の土木構造物に用
いて好適なトラス梁に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a truss beam, and more particularly to a truss beam suitable for use in building structures such as roofs and civil engineering structures such as artificial ground.
【０００２】[0002]
【従来の技術】従来、構造物の梁として用いるトラスの
代表的なものに、図５に示すような平面トラスといわれ
る形式のものがある。この平面トラスは、いずれも鋼管
や鉄骨からなる上弦材１、下弦材２、束材（縦材）３、
斜材（ラチス材）４から構成されている。前記平面トラ
スでは、鉛直荷重を受けたときに、束材３に圧縮力が作
用し、斜材４に引っ張り力が作用する。2. Description of the Related Art Conventionally, a typical truss used as a beam for a structure is of a type called a plane truss as shown in FIG. This plane truss is an upper chord member 1, a lower chord member 2, a bundle member (vertical member) 3, each of which is made of steel pipe or steel frame.
It is composed of a diagonal material (lattice material) 4. In the plane truss, when a vertical load is applied, a compressive force acts on the bundle 3 and a tensile force acts on the diagonal member 4.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、前記ト
ラス梁の上弦材１、下弦材２、斜材４は、鋼管や鉄骨か
らなるため、これら上弦材１、下弦材２、斜材４は、大
きな重量になり、かさばることによって、運搬作業に多
大な労力が必要にされ、トラス梁の施工作業が煩雑であ
った。However, since the upper chord member 1, the lower chord member 2 and the diagonal member 4 of the truss beam are made of steel pipe or steel frame, the upper chord member 1, the lower chord member 2 and the diagonal member 4 are large. Since it becomes heavy and bulky, a great deal of labor is required for transportation work, and the construction work of the truss beam is complicated.
【０００４】また、前記トラス梁にあっては、斜材４が
平面（二次元）配設されているため、前記トラス梁に局
所的な鉛直荷重が加わる場合には、かかる荷重がトラス
梁全体に伝達されず、前記斜材４に応力が集中され、ト
ラス梁の耐震性を維持するのが困難であった。Further, in the truss beam, since the diagonal members 4 are arranged in a plane (two-dimensional), when a local vertical load is applied to the truss beam, the load is applied to the entire truss beam. However, the stress was concentrated on the diagonal member 4 and it was difficult to maintain the earthquake resistance of the truss beam.
【０００５】本発明は前記課題を有効に解決するもの
で、施工作業性を向上させるとともに、耐震性を向上さ
せたトラス梁を提供することを目的とする。The present invention effectively solves the above problems, and an object thereof is to provide a truss beam with improved workability and improved earthquake resistance.
【０００６】[0006]
【課題を解決するための手段】本発明のトラス梁は、構
造物の梁として、上弦材と、下弦材と、これら上弦材と
下弦材との間に張設された斜材とを備え、前記上弦材と
下弦材とは、それぞれ並列状態に配されたトラス梁であ
って、該トラス梁の下弦材と斜材とには、圧縮応力を伝
達させる部分に圧縮部材が設けられ、引っ張り応力を伝
達させる部分にストランドが設けられ、該ストランドは
立体配設されていることを特徴とするものである。The truss beam of the present invention comprises, as a structural beam, an upper chord member, a lower chord member, and a diagonal member stretched between the upper chord member and the lower chord member, The upper chord member and the lower chord member are truss beams arranged in parallel, and the lower chord member and the diagonal member of the truss beam are provided with a compressing member in a portion for transmitting a compressive stress, and a tensile stress Strands are provided in a portion for transmitting the, and the strands are three-dimensionally arranged.
【０００７】[0007]
【作用】本発明のトラス梁では、下弦材と斜材とにスト
ランドが設けられた構成にしたから、ストランドを張設
することにより、下弦材と斜材とが施工される。前記上
弦材に鉛直方向の荷重が加わった場合、かかる荷重が圧
縮応力と引っ張り応力とで斜材に伝達される。この斜材
では、前記圧縮応力が圧縮部材に伝達され、前記引っ張
り応力がストランドに伝達される。このストランドがト
ラス梁に立体配設されているため、前記引っ張り応力が
トラス梁全体に伝達される。In the truss beam of the present invention, since the lower chord member and the diagonal member are provided with the strands, the lower chord member and the diagonal member are constructed by stretching the strands. When a vertical load is applied to the upper chord member, the load is transmitted to the diagonal member by compressive stress and tensile stress. In this diagonal member, the compressive stress is transmitted to the compressing member, and the tensile stress is transmitted to the strand. Since the strands are three-dimensionally arranged on the truss beam, the tensile stress is transmitted to the entire truss beam.
【０００８】[0008]
【実施例】以下、本発明のトラス梁の一実施例につい
て、図１ないし図４を参照しながら説明する。図１ない
し図２に示すように、符号１０はトラス梁であり、１１
は上弦材、１２は下弦材、１３は束材（縦材）、１４は
斜材（ラチス材）である。前記トラス梁１０では、地盤
Ｇに立設された支持部材１５に上弦材１１の両端部が支
持され、この上弦材１１が複数並列状態に配され、下弦
材１２が複数並列状態に配され、これら上弦材１１の並
列面と下弦材１２の並列面とが平行に配され、これら上
弦材１１と下弦材１２とを連結する束材１３が上弦材１
１と下弦材１２との延在方向に直交する方向に設けられ
ている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the truss beam of the present invention will be described below with reference to FIGS. As shown in FIGS. 1 and 2, reference numeral 10 is a truss beam, and 11
Is an upper chord member, 12 is a lower chord member, 13 is a bundle member (vertical member), and 14 is a diagonal member (lattice member). In the truss beam 10, both ends of the upper chord member 11 are supported by the supporting member 15 erected on the ground G, a plurality of the upper chord members 11 are arranged in parallel, and a plurality of the lower chord members 12 are arranged in parallel. The parallel surface of the upper chord members 11 and the parallel surface of the lower chord members 12 are arranged in parallel, and the bundle member 13 connecting the upper chord members 11 and the lower chord members 12 is the upper chord member 1.
1 and the lower chord member 12 are provided in a direction orthogonal to the extending direction.
【０００９】これら上弦材１１と下弦材１２との間に
は、斜材１４が張設されている。これら斜材１４と下弦
材１２とには、図３ないし図４に示すように、圧縮応力
を伝達させる部分に圧縮部材１６が設けられ、引っ張り
応力を伝達させる部分にストランド１７が設けられてい
る。このストランド１７は、プレストレストコンクリー
トに使われる鋼等の高強度の撚り線からなり、所望の緊
張力を付与されて張設されており、三次元状に立体配設
されている。一方、上弦材１１と束材１３と圧縮部材１
６とは鋼管や鉄骨からなる。A diagonal member 14 is stretched between the upper chord member 11 and the lower chord member 12. As shown in FIGS. 3 to 4, the diagonal member 14 and the lower chord member 12 are provided with a compression member 16 at a portion for transmitting a compressive stress and a strand 17 at a portion for transmitting a tensile stress. . The strand 17 is made of a high-strength stranded wire such as steel used for prestressed concrete, is stretched by applying a desired tension, and is three-dimensionally arranged. On the other hand, the upper chord member 11, the bundle member 13, and the compression member 1
6 is made of steel pipe or steel frame.
【００１０】このようなトラス梁１０の施工方法では、
地盤Ｇに支持部材１５を複数立設し、この支持部材１５
の上端部に上弦材１１の両端部を接続し、この上弦材１
１を所定高さに並列状態に配設する。これら上弦材１１
に前記束材１３を並列状態に配設する。ここで、前記束
材１３の一端を前記上弦材１１に接続する。In the method of constructing the truss beam 10 as described above,
A plurality of support members 15 are erected on the ground G.
Connect both ends of the upper chord member 11 to the upper end of the
1 are arranged in parallel at a predetermined height. These upper chords 11
The bundles 13 are arranged in parallel. Here, one end of the bundle member 13 is connected to the upper chord member 11.
【００１１】その後、前記束材１３の他端に下弦材１２
を接続し、下弦材１２を所定高さに並列状態に配設す
る。一方、前記束材１３の他端と上弦材１１との間に斜
材１４を所望の緊張力で斜めに張設する。こうして、ト
ラス梁１０を地盤Ｇ上に施工する。Thereafter, the lower chord member 12 is attached to the other end of the bundle member 13.
And the lower chord members 12 are arranged in parallel at a predetermined height. On the other hand, a diagonal member 14 is obliquely stretched between the other end of the bundle member 13 and the upper chord member 11 with a desired tension. In this way, the truss beam 10 is constructed on the ground G.
【００１２】このようなトラス梁１０では、前記上弦材
１１に鉛直方向の荷重が加わった場合、かかる荷重が圧
縮応力と引っ張り応力とで束材１３に伝達される。この
束材１３では、前記圧縮応力が圧縮部材１６に伝達さ
れ、前記引っ張り応力がストランド１７に伝達される。
このストランド１７がトラス梁１０に立体配設されてい
るため、前記引っ張り応力がトラス梁１０全体に伝達さ
れる。In such a truss beam 10, when a load in the vertical direction is applied to the upper chord member 11, the load is transmitted to the bundle member 13 by a compressive stress and a tensile stress. In this bundle material 13, the compressive stress is transmitted to the compressing member 16, and the tensile stress is transmitted to the strand 17.
Since the strands 17 are three-dimensionally arranged on the truss beam 10, the tensile stress is transmitted to the entire truss beam 10.
【００１３】このようなトラス梁１０によれば、下弦材
１２と斜材１４とにストランド１７が設けられているた
め、必要な鋼管や鉄骨を少なくすることができ、ストラ
ンド１７はかさばらないことから、下弦材１２と斜材１
４との運搬作業を向上できる。そして、ストランド１７
を張設することにより、下弦材１２と斜材１４とを施工
できるから、トラス梁１０の施工作業性を向上できる。According to the truss beam 10 as described above, since the strands 17 are provided on the lower chord member 12 and the diagonal members 14, the required steel pipes and steel frames can be reduced, and the strands 17 are not bulky. , Lower chord member 12 and diagonal member 1
The transportation work with 4 can be improved. And strand 17
Since the lower chord member 12 and the diagonal member 14 can be constructed by stretching, the workability of the truss beam 10 can be improved.
【００１４】また、下弦材１２と斜材１４とには、圧縮
応力を伝達させる部分に圧縮部材１６が設けられ、引っ
張り応力を伝達させる部分にストランド１７が設けら
れ、このストランド１７が立体配設されている構成にし
たから、上弦材１１に鉛直方向の荷重が加わった場合、
かかる荷重が圧縮応力と引っ張り応力とで束材１３に伝
達される。この束材１３では、前記圧縮応力が圧縮部材
１６に伝達され、前記引っ張り応力がストランド１７に
伝達される。このストランド１７がトラス梁１０に立体
配設されているため、前記引っ張り応力がトラス梁１０
全体に伝達される。このため、トラス梁１０の耐震性を
向上できる。Further, in the lower chord member 12 and the diagonal member 14, a compression member 16 is provided in a portion for transmitting a compressive stress, and a strand 17 is provided in a portion for transmitting a tensile stress. Since the above configuration is adopted, when a load in the vertical direction is applied to the upper chord member 11,
This load is transmitted to the bundle 13 by compressive stress and tensile stress. In this bundle material 13, the compressive stress is transmitted to the compressing member 16, and the tensile stress is transmitted to the strand 17. Since the strands 17 are three-dimensionally arranged on the truss beam 10, the tensile stress is increased by the truss beam 10.
Transmitted throughout. Therefore, the earthquake resistance of the truss beam 10 can be improved.
【００１５】[0015]
【発明の効果】以上説明したように、本発明のトラス梁
によれば、引っ張り力を伝達させる下弦材と斜材とにス
トランドが設けられた構成にしたから、下弦材と斜材と
に要する鋼管や鉄骨を少なくすることができ、ストラン
ドはかさばらないことから、下弦材と斜材との運搬作業
を向上できる。そして、ストランドを張設することによ
り、下弦材と斜材とを施工できるから、トラス梁の施工
作業性を向上できる。このため、巨大な空間を有するト
ラス梁を容易に施工できるから、屋根等の建築構造物、
人工地盤等の構造物の梁の施工作業性を向上できる。As described above, according to the truss beam of the present invention, since the lower chord member for transmitting the tensile force and the diagonal member are provided with the strands, the lower chord member and the diagonal member are required. Since the number of steel pipes and steel frames can be reduced and the strands are not bulky, the work of transporting the lower chord members and the diagonal members can be improved. Further, since the lower chord member and the diagonal member can be constructed by stretching the strand, the construction workability of the truss beam can be improved. For this reason, since it is possible to easily construct a truss beam having a huge space, a building structure such as a roof,
The workability of constructing beams such as artificial ground can be improved.
【００１６】また、下弦材と斜材とには、圧縮応力を伝
達させる部分に圧縮部材が設けられ、引っ張り応力を伝
達させる部分にストランドが設けられ、このストランド
が立体配設されている構成にしたから、上弦材に鉛直方
向の荷重が加わった場合、かかる荷重では、圧縮部材が
圧縮応力を伝達でき、ストランドが引っ張り応力を伝達
できる。このストランドがトラス梁に立体配設された構
成にしているから、前記引っ張り応力がトラス梁全体に
伝達される。このため、トラス梁の耐震性を向上できる
から、高い耐震性を有した構造物を提供できるという効
果を奏することができる。Further, in the lower chord member and the diagonal member, a compression member is provided in a portion for transmitting a compressive stress, a strand is provided in a portion for transmitting a tensile stress, and the strands are three-dimensionally arranged. Therefore, when a vertical load is applied to the upper chord member, the compressive member can transmit the compressive stress and the strand can transmit the tensile stress under the load. Since the strands are three-dimensionally arranged on the truss beam, the tensile stress is transmitted to the entire truss beam. For this reason, since the earthquake resistance of the truss beam can be improved, it is possible to provide an effect that a structure having high earthquake resistance can be provided.
【図１】本発明に係るトラス梁の各要素の配置状態を示
す平面図である。FIG. 1 is a plan view showing an arrangement state of each element of a truss beam according to the present invention.
【図２】図１のＸ１ーＸ１線に沿う矢視図である。FIG. 2 is a view taken along the line X1-X1 of FIG.
【図３】図１のＸ２ーＸ２線に沿う矢視図である。3 is a view taken along line X2-X2 in FIG.
【図４】図１のＸ３ーＸ３線に沿う矢視図である。FIG. 4 is a view taken along line X3-X3 in FIG.
【図５】従来のトラス梁を示す側面図である。FIG. 5 is a side view showing a conventional truss beam.
１０ トラス梁 １１ 上弦材 １２ 下弦材 １４ 斜材 １６ 圧縮部材 １７ ストランド 10 truss beam 11 upper chord member 12 lower chord member 14 diagonal member 16 compression member 17 strand
Claims (1)
と、これら上弦材と下弦材との間に張設された斜材とを
備え、前記上弦材と下弦材とは、それぞれ並列状態に配
されたトラス梁であって、該トラス梁の下弦材と斜材と
には、圧縮応力を伝達させる部分に圧縮部材が設けら
れ、引っ張り応力を伝達させる部分にストランドが設け
られ、該ストランドは立体配設されていることを特徴と
するトラス梁。1. A beam of a structure, comprising: an upper chord member, a lower chord member, and a diagonal member stretched between the upper chord member and the lower chord member, wherein the upper chord member and the lower chord member are parallel to each other. In the truss beam arranged in a state, in the lower chord member and the diagonal member of the truss beam, a compression member is provided in a portion for transmitting a compressive stress, and a strand is provided in a portion for transmitting a tensile stress, A truss beam characterized by three-dimensionally arranged strands.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15834692A JPH062360A (en) | 1992-06-17 | 1992-06-17 | Truss beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15834692A JPH062360A (en) | 1992-06-17 | 1992-06-17 | Truss beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH062360A true JPH062360A (en) | 1994-01-11 |
Family
ID=15669641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15834692A Withdrawn JPH062360A (en) | 1992-06-17 | 1992-06-17 | Truss beam |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH062360A (en) |
-
1992
- 1992-06-17 JP JP15834692A patent/JPH062360A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19990831 |