CN106401064A - Adjustable and controllable prestress laminated wood truss-string structure - Google Patents
Adjustable and controllable prestress laminated wood truss-string structure Download PDFInfo
- Publication number
- CN106401064A CN106401064A CN201610953620.6A CN201610953620A CN106401064A CN 106401064 A CN106401064 A CN 106401064A CN 201610953620 A CN201610953620 A CN 201610953620A CN 106401064 A CN106401064 A CN 106401064A
- Authority
- CN
- China
- Prior art keywords
- truss
- rod
- bar
- timber
- wood truss
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/12—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members
- E04C3/17—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members with non-parallel upper and lower edges, e.g. roof trusses
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/12—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members
- E04C3/18—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members with metal or other reinforcements or tensioning members
Abstract
The invention discloses a prestress laminated wood truss-string structure which comprises a truss upper string and a truss lower string. The truss upper string is double layers of wood truss rods and comprises the two parallel upper-layer wood truss rods at the same height and the lower-layer wood truss rod. The lower-layer wood truss rod is connected with each upper-layer wood truss rod through a web rod. The truss lower string is a round prestressed rib, and wood truss rods are connected between the lower-layer wood truss rod and the prestressed rib. A prestress control mechanism is arranged between each wood truss rod and the corresponding web rod and comprises a spherical hinge joint, a screw and a sleeve. Each spherical hinge joint is located at the end of the corresponding web rod and fixed to the lower-layer wood truss rod. One end of each screw is fixed to the corresponding spherical hinge joint, and the other end of each screw extends downwards and is connected with the corresponding wood truss rod through an embedded steel bar. The outer wall of each screw is connected with the corresponding sleeve in a sleeving manner, and each sleeve can rotate relative to the corresponding screw.
Description
Technical field：
The present invention relates to construction engineering technical field, it has been specifically related to a kind of prestressing force laminated wood truss string structure.
Background technology
Common truss generally uses steel truss, for example special in the Chinese invention of Patent No. 201410637364.0
A kind of functional steel truss is disclosed in profit, including：Truss, connecting post, lock shaft, guide rail, slide block and fixing lock, described truss
Two ends are provided with connecting post, and connecting post is connected with lock shaft two ends, and guide rail is arranged on truss, and guide rail is provided with slide block, sliding
Block both sides are provided with fixing lock.By the way, functional steel truss of the present invention has reliability height, equipment installs regulation side
Just, truss installa-tion adjusts the advantages of rapid, compact conformation, adaptability are good, has extensive market prospect in framework market simultaneously.
But, the steel truss structure in above-mentioned patent, truss depth is fixing, is difficult to its prestressing force is regulated and controled,
And due to often contacting with malaria, the shortcomings of there is easy-to-rust.
Content of the invention：
The invention aims to providing a kind of truss string structure unit of the steel and wood composite that can regulate and control, by each purlin
Frame unit spliced forms truss.
Described purpose is achieved by the following scheme,
A kind of prestressing force laminated wood truss string structure, include truss wind up, truss lower edge, described truss winds up as double-deck wood
Truss rod, includes two overstory truss rods being parallel to each other in sustained height and a understorey truss rod, described lower floor
Timber truss bar is connected with described overstory truss rod by a web member respectively, and described truss lower edge is circular prestressing force
Muscle, is connected with timber truss bar between understorey truss rod and described presstressed reinforcing steel；
It is provided with prestress control mechanism, described prestress control mechanism bag between described timber truss bar and described web member
Ball pivot node, screw rod and sleeve are included, described ball pivot node is located at the end of described web member, and is fixed on described understorey purlin
On hack lever, described screw rod one end is fixed on described ball pivot node, and the other end extends downwardly and by bar planting and described timber truss
Bar is connected, and is socketed with described sleeve on described screw rod outer wall, and described sleeve can rotate with respect to described screw rod.
As the improvement of the present invention, described timber truss boom end and described ball pivot node all offer screwed hole, institute
The two ends stating screw rod are located in described ball pivot node and the screwed hole of described timber truss bar respectively, and can be stretched into by rotation or
Exit described screwed hole.
As a further improvement on the present invention, it is clamped with circle between the end of described timber truss bar and described presstressed reinforcing steel
The solid rib of arc.
Compared with prior art, it is an advantage of the current invention that：Truss winds up as timber truss component, and truss lower edge is prestressing force
Muscle, web member is timber truss component (timber is pressurized, reinforcing bar tension, reasonable stress).The wooden bar cross section of web member is larger (to replace steel abdomen
Bar, heavy in section effectively prevents the problem of rod member buckle in compression).Top boom, web member (in natatorium, often can be gone out using timber
Situations such as existing steel rod elements are subject to cargo sweat, and the degree suffering damage is very serious, using timber, can reduce steel beam column and air
Contact area, the anticorrosion of timber structure, moistureproof advantage project).Steel pole and wooden component ends steel pole at upper ball pin joint,
It is screw rod.It is attached by sleeve, by rotational sleeve, adjust the height of truss element, bottom prestressing force is driven with this
The tensioning of muscle, reaches the purpose controlling prestressing force size.
Brief description：
Fig. 1 is the structural representation of prestressing force laminated wood truss string structure in the present invention；
Fig. 2 is the structural representation of Tu1Zhong prestress control mechanism；
Fig. 3 is the structural representation of Fig. 2 ball pivot node.
Specific embodiment：
Elaborate the preferred embodiment of the present invention below in conjunction with the accompanying drawings.
The invention provides a kind of prestressing force laminated wood truss string structure, include truss and wind up 1, truss lower edge 2, on truss
String is double-deck timber truss bar, includes overstory truss rod 11 and understorey truss rod 12, overstory truss rod has two, under
Layer timber truss bar has one, and this understorey truss rod is connected with two overstory truss rods by web member 3 respectively, and web member is steel
The timber truss bar of wooden combinative structure, and constitute one by the connecting line between two above-mentioned web members and two steel truss poles
The cross section of equilateral triangle.Web member replaces steel web member, and the heavy in section of setting triangle by timber, can effectively prevent
The problem of rod member buckle in compression.
Truss lower edge is circular presstressed reinforcing steel, is connected with timber truss bar 4 between truss lower edge and understorey truss rod,
Described timber truss bar one end is connected on the understorey truss rod that truss winds up, and the other end is connected on truss lower edge, described
Be provided with prestress control mechanism between timber truss bar and described web member, described prestress control mechanism include ball pivot node 5,
Screw rod 6, sleeve 7, described ball pivot node is located at the end of described web member, and is fixed on described understorey truss rod, described
Screw rod one end is fixed on described ball pivot node, and the other end is extended downwardly and is connected in timber truss bar by embedding re-bar technique, tool
Body, all offer screwed hole in the bottom in described timber truss masthead portion and described ball pivot node, the two ends of described screw rod are respectively
It is located in described timber truss bar and the screwed hole of described ball pivot node, and can be stretched into by rotating or exit described screw thread
Hole.Described sleeve is socketed with described screw rod outer wall.Sleeve can rotate with respect to screw rod, when rotational sleeve, permissible
Further or lengthen the relative distance between understorey truss rod and presstressed reinforcing steel, to realize the regulation to tension of prestressed tendon, reach
To the purpose controlling prestressing force size.It is clamped with the solid rib of circular arc between the end of described timber truss bar and described presstressed reinforcing steel
8, this circular arc is solid, and rib can upper limit, in the end of timber truss bar, prevents it from coming off in the horizontal direction by presstressed reinforcing steel.
The above makes the preferred embodiment of the present invention, for the person of ordinary skill of the art without departing from this
On the premise of bright principle, some modifications and improvement can also be made, these also should be regarded as protection scope of the present invention.
Claims (3)
1. a kind of prestressing force laminated wood truss string structure it is characterised in that：Include truss wind up, truss lower edge, on described truss
String is double-deck timber truss bar, includes two overstory truss rods being parallel to each other in sustained height and lower floor's timber truss
Bar, described understorey truss rod is connected with described overstory truss rod by a web member respectively, and described truss lower edge is
Circular presstressed reinforcing steel, is connected with timber truss bar between understorey truss rod and described presstressed reinforcing steel；
It is provided with prestress control mechanism between described timber truss bar and described web member, described prestress control mechanism includes
Ball pivot node, screw rod and sleeve, described ball pivot node is located at the end of described web member, and is fixed on described understorey truss rod
On, described screw rod one end is fixed on described ball pivot node, and the other end extends downwardly and passes through bar planting and described timber truss bar phase
Even, described sleeve is socketed with described screw rod outer wall, described sleeve can rotate with respect to described screw rod.
2. prestressing force laminated wood truss string structure according to claim 1 it is characterised in that：In described timber truss boom end and
Screwed hole is all offered on described ball pivot node, the two ends of described screw rod are located in described ball pivot node and described timber truss respectively
In the screwed hole of bar, and can be stretched into by rotating or exit described screwed hole.
3. prestressing force laminated wood truss string structure according to claim 1 and 2 it is characterised in that：In described timber truss bar
It is provided with the solid rib of circular arc between end and described presstressed reinforcing steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610953620.6A CN106401064A (en) | 2016-11-03 | 2016-11-03 | Adjustable and controllable prestress laminated wood truss-string structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610953620.6A CN106401064A (en) | 2016-11-03 | 2016-11-03 | Adjustable and controllable prestress laminated wood truss-string structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106401064A true CN106401064A (en) | 2017-02-15 |
Family
ID=58014492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610953620.6A Pending CN106401064A (en) | 2016-11-03 | 2016-11-03 | Adjustable and controllable prestress laminated wood truss-string structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106401064A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4077176A (en) * | 1976-10-18 | 1978-03-07 | Frederick Bauer | Truss joists |
| CN1821519A (en) * | 2005-12-22 | 2006-08-23 | 高维成 | Tension string beam structure with dog bone type damper |
| CN202064270U (en) * | 2011-01-27 | 2011-12-07 | 同济大学 | Steering gear of adjustable prestress |
| CN202108115U (en) * | 2011-06-03 | 2012-01-11 | 中国民航大学 | Bamboo truss string structure |
-
2016
- 2016-11-03 CN CN201610953620.6A patent/CN106401064A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4077176A (en) * | 1976-10-18 | 1978-03-07 | Frederick Bauer | Truss joists |
| CN1821519A (en) * | 2005-12-22 | 2006-08-23 | 高维成 | Tension string beam structure with dog bone type damper |
| CN202064270U (en) * | 2011-01-27 | 2011-12-07 | 同济大学 | Steering gear of adjustable prestress |
| CN202108115U (en) * | 2011-06-03 | 2012-01-11 | 中国民航大学 | Bamboo truss string structure |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170215 |