CN202370105U - Steel pipe truss node plate - Google Patents
Steel pipe truss node plate Download PDFInfo
- Publication number
- CN202370105U CN202370105U CN2011205189717U CN201120518971U CN202370105U CN 202370105 U CN202370105 U CN 202370105U CN 2011205189717 U CN2011205189717 U CN 2011205189717U CN 201120518971 U CN201120518971 U CN 201120518971U CN 202370105 U CN202370105 U CN 202370105U
- Authority
- CN
- China
- Prior art keywords
- plate
- node
- steel pipe
- gusset plate
- otic placode
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a steel pipe truss node plate, which is characterized in that the node plate is a rectangular connecting steel pipe provided with a swallow tail angle, an ear plate is arranged on the node plate, the ear plate is an axial symmetric reinforcing rib plate provided with a cutting groove and a round hole, the cutting groove and a round hole are arranged on the symmetry axis of the ear plate, and the node plate is inserted into the cutting groove, crossed, and welded with the ear plate to form a node connection component. Compared with the prior art, the steel pipe truss node plate has the advantages of being simple in structure, large in node connection force bearing, mild and smooth in force transfer, capable of reducing the node stress intensity and improving the structure safety, particularly suitable for occasions where structures bear dynamic loads, low in manufacturing cost, convenient to mount, and short in construction period.
Description
Technical field
The utility model relates to the trussed construction technical field, specifically a kind of steel pipe truss gusset plate.
Background technology
At present, the node that steel pipe truss is commonly used connects, roughly be divided into gusset plate and connect and is connected with tubular joint, in bearing the structure of static load when internal force than greatly the time, the application that cast steel node has also obtained gradually.Gusset plate is that a kind of most popular panel point connects, and has that power transmission is directly reliable, the advantage of easy construction, has all obtained application in various occasions.But when the connection internal force that bears was big, following problem can appear in the gusset plate connected node: because the transmission of internal force all relies on the weld seam between steel pipe walls and the junction plate, can cause the situation that fusion length is long, gusset plate is oversize; Therefore the steel using amount of junction plate sharply rises; Cause engineering cost to increase, when fusion length is long, can cause stressed inhomogeneous of weld seam; Therefore, effective stressed fusion length is no more than 60h in the design specifications
fThereby, limited the bearing capacity that node connects; In addition, gusset plate is as the connector that transmits huge internal force between the rod member, and gusset plate thickness can be quite big, causes the decline of steel performance.In addition, when being applied in the steel pipe truss, being welded to connect of gusset plate and steel pipe is difficult to avoid to produce serious stress concentration, causes the stress state of steel pipe to worsen, and this is the hidden danger on a kind of safety for the structure of bearing dynamic loading.Connect for tubular joint, because weld shape constantly changes along the intersection angle, its actual effective thickness also changes thereupon, and therefore, the stressed ten minutes of weld seam is complicated, and it is consistent that the quality of the weld seam of each different parts also is difficult to reach.Especially for bearing the situation of the dynamic loading of effect repeatedly, tubular joint still lacks deep research, therefore, in design specifications, should not be used for bearing the structure of dynamic loading separately.Above-mentioned gusset plate connects and is connected with tubular joint, when the internal force of rod member during greater than 3000kN, adopt simple gusset plate connection perhaps simple intersection welding node just be difficult to satisfy force request.
It is big that cast steel node has a bearing capacity, is applicable in the complex node that many rod members cross, but is limited to present casting technique; The quality of cast steel node also is difficult to guarantee the uniformity of foundry goods inside; Defective that possibly exist in some casting process such as pore etc. also are difficult to avoid fully, therefore, and when structure is born the dynamic loading of effect repeatedly; These defectives may become serious potential safety hazard; And the cost of cast steel node is higher than aforementioned two kinds of nodes far away and connects, and construction and installation also relative complex are stranded much more difficult.
In sum, the steel pipe truss connected node form of prior art can not be applicable to and bear big internal force and huge especially axle power, the occasion of especially bearing dynamic loading when structure.
The utility model content
The purpose of the utility model is the syndeton of a kind of steel pipe truss node of designing to the deficiency of prior art; It adopts to connect and is welded into steel pipe truss after rod member is pegged graft with " ten " font junction plate, can bear big internal force and huge especially axle power, has effectively avoided the stress concentration phenomenon that connects; Be particularly useful for structure and bear the occasion of dynamic loading; Reduce the expenditure of construction of truss greatly, easy for installation, short construction period.
The purpose of the utility model is achieved in that a kind of steel pipe truss gusset plate; Be characterized in that gusset plate is that the rectangle that is provided with the dovetail angle connects steel plate; Gusset plate is provided with otic placode; Otic placode is that the axial symmetry that is provided with profile groove and circular hole is strengthened gusset, and profile groove and circular hole are arranged on the axis of symmetry of otic placode, and gusset plate socket joint " ten " word in profile groove intersects and otic placode is welded into the node connecting elements.
Said otic placode is by semicircle and the trapezoidal axial symmetry steel plate of forming, and the width of profile groove is slightly larger than the thickness of gusset plate, and Circularhole diameter is slightly larger than the chord member diameter.
The utility model compared with prior art has simple in structure, and the bearing capacity that node connects is big, and the transmission of power is more gentle smooth-going; Reduced the intensity of node stress; Improve the safety of structure, be particularly useful for the occasion that structure is born dynamic loading, reduced the expenditure of construction of steel pipe truss greatly; Convenient making and installation, short construction period.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the A-A view of Fig. 1;
Fig. 3 is the gusset plate structural representation;
Fig. 4 is the otic placode structural representation;
Fig. 5 is for implementing illustration.
The specific embodiment
Consult accompanying drawing 1 ~ accompanying drawing 2; Gusset plate 1 of the present invention connects steel plate for the rectangle that is provided with dovetail angle 10; Gusset plate 1 is provided with otic placode 5; Otic placode 5 is strengthened gusset for the axial symmetry that is provided with profile groove 6 and circular hole 7, and profile groove 6 is arranged on the axis of symmetry of otic placode 5 with circular hole 7, and gusset plate 1 socket joint " ten " word intersection in profile groove 6 is welded into the node connecting elements with otic placode 5.
Consult accompanying drawing 4; Otic placode 5 is that semicircle is being strengthened gusset with trapezoidal axial symmetry at last composition down, and otic placode 5 is provided with profile groove 6 and circular hole 7, and profile groove 6 is arranged on the axis of symmetry of otic placode 5; The groove width of its profile groove 6 is slightly larger than the thickness of gusset plate 1, and circular hole 7 somewhat larger in diameter are in chord member 4 diameters.
More than just the utility model being further described, is not in order to the restriction this patent, and all is that the utility model equivalence is implemented, and all should be contained within the claim scope of this patent.
Claims (2)
1. steel pipe truss gusset plate; It is characterized in that gusset plate (1) connects steel plate for the rectangle that is provided with dovetail angle (10); Gusset plate (1) is provided with otic placode (5); Otic placode (5) is strengthened gusset for the axial symmetry that is provided with profile groove (6) and circular hole (7), and profile groove (6) and circular hole (7) are arranged on the axis of symmetry of otic placode (5), and gusset plate (1) socket joint " ten " word in profile groove (6) intersects and otic placode (5) is welded into the node connecting elements.
2. according to the syndeton of the said steel pipe truss node of claim 1; It is characterized in that said otic placode (5) is by semicircle and the trapezoidal axial symmetry steel plate of forming; The width of profile groove (6) is slightly larger than the thickness of gusset plate (1), and circular hole (7) somewhat larger in diameter is in chord member (4) diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205189717U CN202370105U (en) | 2011-12-13 | 2011-12-13 | Steel pipe truss node plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205189717U CN202370105U (en) | 2011-12-13 | 2011-12-13 | Steel pipe truss node plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202370105U true CN202370105U (en) | 2012-08-08 |
Family
ID=46593813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205189717U Expired - Lifetime CN202370105U (en) | 2011-12-13 | 2011-12-13 | Steel pipe truss node plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202370105U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234190A (en) * | 2014-09-15 | 2014-12-24 | 浙江精工钢结构集团有限公司 | Designing method for reinforced floor chord member of pipe truss structure |
-
2011
- 2011-12-13 CN CN2011205189717U patent/CN202370105U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234190A (en) * | 2014-09-15 | 2014-12-24 | 浙江精工钢结构集团有限公司 | Designing method for reinforced floor chord member of pipe truss structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120808 |