CN217400102U - Steel-wood combined beam string structure - Google Patents
Steel-wood combined beam string structure Download PDFInfo
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- CN217400102U CN217400102U CN202122158248.9U CN202122158248U CN217400102U CN 217400102 U CN217400102 U CN 217400102U CN 202122158248 U CN202122158248 U CN 202122158248U CN 217400102 U CN217400102 U CN 217400102U
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Abstract
The utility model belongs to the technical field of beam string structure work pieces, more specifically relates to a steel-wood combined beam string structure, which comprises an arc-shaped rigid chord member, wherein the center of the arc-shaped rigid chord member is connected with a stay bar, and the two ends of the stay bar are fixedly connected through an upper mounting part and a lower mounting part; the upper mounting part is integrally of a T-shaped structure, and the lower mounting part is integrally of an inverted T-shaped structure; the upper mounting part is attached to the outer side surface of the arc-shaped rigid chord member, and the arc-shaped rigid chord member is clamped in the middle; the lower mounting portion is provided with a mounting hole, and two ends of the lower chord flexible inhaul cable are respectively connected with the arc-shaped rigid chord member and the mounting hole, so that the arc-shaped rigid chord member is tensioned. The structure can not only improve the integral rigidity of the beam string, adjust the internal force distribution of the wood member, but also reduce the peak value of the bending moment in the beam, and fully exert the wood strength. The lower chord flexible inhaul cable is reliably anchored at the end part, and the transmission of the pulling force axis is ensured. The tension performance of the inhaul cable can be fully exerted, and the safety performance is greatly improved.
Description
Technical Field
The utility model belongs to the technical field of open string girder construction work piece, more specifically relates to a string girder construction is opened in steel-wood combination.
Background
Due to the special structure of the wood, the wood shows remarkable anisotropy in mechanical property. In the design, the member can bear pressure as much as possible, and tension is avoided, and no obvious plastic deformation before the tensile damage of the wood is shown as brittle damage. In addition, various defects of the wood and the influence of the cross grain dry shrinkage deformation of the wood at the node have great influence on the tensile property.
At present, a wood roof structure with a large span generally adopts a wood truss structure, joints of the wood roof structure are mostly hinged, all rod pieces mainly bear axial force, an upper chord and a web member are pressed, a lower chord of the truss is a tension member, the application of the wood truss structure with the large span is limited, and the lower chord is generally replaced by a steel member to form a steel-wood combined structure. According to the traditional method for connecting the lower chord and the upper chord support, the connecting plate is arranged on the outer side of the square timber, so that torsion moment can be generated at the joint when the square timber is pulled, and the joint of the support is easily damaged at the bolt connecting position.
Therefore, the steel-wood combined beam string structure with good service performance has great practical significance and market value.
SUMMERY OF THE UTILITY MODEL
To exist not enough among the prior art, the utility model provides a string roof beam structure is opened in steel-wood combination carries out rational configuration with arc rigidity chord member, vaulting pole and last quarter flexible cable, applys certain prestressing force through last quarter flexible cable, improves and opens the holistic rigidity of string roof beam, and the internal force of adjustment timber compoment distributes, reduces the peak value of the interior moment of flexure of roof beam. Can make the strength of the wood fully exerted. The flexible cable is reliably anchored at the end part, and the transmission of the pulling force axis is ensured.
Meanwhile, the lower chord adopts a high-strength guy cable, so that the tension performance of the guy cable can be fully exerted, and the section is made very small. The connecting wall plates are embedded into the first grooves at the two ends of the chord members, the steel connecting plates are embedded into the second grooves at the lower parts of the support rods, the exposure of steel structures is reduced, the complete effect of upper chord square timbers is kept, and the overall structure is light and attractive.
The utility model discloses a realize through following technical scheme:
the steel-wood combined beam string structure comprises an arc-shaped rigid chord member, wherein the center of the arc-shaped rigid chord member is connected with a support rod, and two ends of the support rod are fixedly connected through an upper mounting part and a lower mounting part; the upper mounting part is integrally of a T-shaped structure, and the lower mounting part is integrally of an inverted T-shaped structure; the upper mounting part is attached to the outer side surface of the arc-shaped rigid chord member to clamp the arc-shaped rigid chord member in the middle; the lower mounting portion is provided with a mounting hole, and two ends of the lower chord flexible inhaul cable are respectively connected with the arc-shaped rigid chord member and the mounting hole, so that the arc-shaped rigid chord member is tensioned.
Further, the arc-shaped rigid chord member is an upper chord square wood member. The square wood member is a common member of a wood roof structure, and has light structure and high use performance.
Further, the support rod is a square wood support rod.
Furthermore, a second groove body is arranged in the middle of the supporting rod on one side far away from the arc-shaped rigid chord member, and a second steel connecting plate is embedded into the second groove body and connected through bolts in a penetrating mode.
Further, the lower-chord flexible inhaul cable comprises a connecting wall plate and a flexible rod, and one end of the flexible rod is hinged with the connecting wall plate.
Furthermore, the middle parts of the two ends of the upper chord square wood component are provided with a first groove body, and the connecting wall plate is embedded and attached to the inner wall of the first groove body and is connected in a penetrating mode through bolts.
Furthermore, the joint of the connecting wall plate and the upper chord square timber component is a polygonal wide plate, and the joint of the connecting wall plate and the lower chord flexible inhaul cable is a rectangular narrow plate extending from the lower end of the wide plate.
And furthermore, the other end of the lower chord flexible inhaul cable is connected with a second steel connecting plate through a pin shaft.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model provides a string girder construction is opened in steel wood combination carries out rational configuration with arc rigidity chord member, vaulting pole and last quarter flexible cable, applys certain prestressing force through last quarter flexible cable, improves and opens the holistic rigidity of string girder, and the internal force of adjustment timber compoment distributes, reduces the peak value of the interior moment of flexure of roof beam. Can make the strength of the wood fully exerted. The flexible cable is reliably anchored at the end part, and the transmission of the pulling force axis is ensured.
Meanwhile, the lower-chord flexible stay cable adopts a high-strength stay cable, the tension performance of the stay cable can be fully exerted, and the section is made very small. And slots are ingeniously formed in the middle parts of two ends of the upper chord square wood component, the wood component at the connecting position is pressed through the butt-penetrating bolts, the transmission of the axis is realized, and eccentric torque cannot be generated. In the steel connecting plate embedding middle part groove, it exposes to reduce the steel construction, keeps the complete effect of last quarter square timber, and overall structure is very slim and graceful pleasing to the eye.
The steel-wood combined beam string structure realizes a self-balancing structure system. The system is simple in composition, clear in stress, capable of fully playing the mechanical advantages of the rigid and flexible materials and easy to popularize.
Drawings
Fig. 1 is the whole schematic diagram of the steel-wood composite beam string structure of the utility model.
Fig. 2 is the structure schematic diagram of the connecting wall plate of the steel-wood composite beam string structure of the utility model.
Fig. 3 is a schematic structural view of an upper mounting part of the steel-wood composite beam string structure of the present invention.
Fig. 4 is a side view of an upper mounting part of the steel-wood composite beam string structure shown in fig. 3.
Fig. 5 is a schematic structural diagram of a lower mounting part of the beam string structure of the steel-wood combination.
Fig. 6 is a schematic side view of a lower mounting part of the beam-string structure of the steel-wood composite beam in fig. 5.
The novel combined type steel wire rope comprises 1-an arc-shaped rigid chord, 11-a first groove body, 21-an upper installation part, 22-a support rod, 23-a lower installation part, 24-an installation hole, 25-a second groove body, 3-a lower-chord flexible inhaul cable and 4-a connecting wall plate.
Detailed Description
The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Example 1
As shown in fig. 1 to 6, the steel-wood composite beam string structure includes an arc-shaped rigid chord member 1, wherein a stay 22 is connected to the center of the arc-shaped rigid chord member 1, and two ends of the stay 22 are fixedly connected through an upper mounting portion 21 and a lower mounting portion 23; the upper mounting part 21 is integrally T-shaped, and the lower mounting part 23 is integrally inverted T-shaped; the upper mounting part 21 is attached to the outer side surface side of the arc-shaped rigid chord 1; the two arc-shaped rigid chords 1 are clamped in the middle; the lower mounting part 23 is provided with a mounting hole 24, and the two ends of the lower chord flexible inhaul cable 3 are respectively connected with the arc-shaped rigid chord member 1 and the mounting hole 24, so that the arc-shaped rigid chord member 1 is tensioned.
In this embodiment, the arc-shaped rigid chord member 1 is an upper chord square wood member. The middle parts of two ends of the upper chord square wood component are provided with a first groove body 11, and the connecting wall plate 4 is embedded and attached to the inner wall of the first groove body 11 and is connected in a penetrating mode through bolts. The first groove bodies 11 are two and symmetrically arranged on two sides of the upper installation part 21.
The supporting rods 22 are square wood supporting rods, the upper installation part 21 is formed by arranging two steel connecting plates I on the outer sides of the square wood supporting rods, and the two steel connecting plates are connected in a penetrating mode through bolts, so that the square wood supporting rods are fixedly connected with the upper installation part 21.
This upper mounting portion 21 wholly is T type structure, and T type structure head can effectively laminate and fix on last quarter square timber to the afterbody of T type structure can press from both sides tight square timber vaulting pole, and is fixed with square timber vaulting pole and steel connecting plate through the bolt.
This flexible cable 3 of lower chord is including connecting wallboard 4 and flexible pole. Meanwhile, the middle part of the stay bar 22 on one side far away from the arc-shaped rigid chord member 1 is provided with a second groove body 25, and the lower mounting part 23 is formed by embedding a second steel connecting plate into the second groove body 25 and is connected in a penetrating manner through bolts. One end of the flexible rod is hinged with the connecting wall plate 4, and the other end of the flexible rod is connected with the second steel connecting plate through a pin shaft.
In the embodiment, the joint of the connecting wall plate 4 and the upper chord square timber component is a polygonal wide plate, and the joint of the connecting wall plate and the lower chord flexible inhaul cable 3 is a rectangular narrow plate extending from the lower end of the wide plate.
The wider part of the connecting wall plate 4 is used for installing a bolt to be fixed in the first groove body of the arc-shaped rigid chord 1, and the part connected with the flexible rod is designed to be narrower. The both ends tip of flexible pole is provided with the cable pole connector, and joint strength is greater than the body of rod of flexible pole, and wallboard 4 is connected to one end, and steel connecting plate 2 is connected to one end. The arrangement can ensure the toughness of the whole lower chord flexible inhaul cable 3 and also ensure the strength and the use performance of the lower chord flexible inhaul cable.
The middle part of the square timber on one side far away from the arc-shaped rigid chord member 1 is provided with a second groove body 25, and the second steel connecting plate is embedded into the second groove body 25 and is connected through bolts in a penetrating mode.
The steel-wood combined beam string structure realizes a self-balancing structure system. The system is simple in composition, clear in stress, capable of fully playing the mechanical advantages of the rigid and flexible materials and easy to popularize.
It should be understood that the above-mentioned embodiments are only examples for clearly illustrating the technical solutions of the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (8)
1. A steel-wood combined beam string structure is characterized by comprising an arc-shaped rigid chord member, wherein the center of the arc-shaped rigid chord member is connected with a support rod, and two ends of the support rod are fixedly connected through an upper mounting part and a lower mounting part; the whole upper mounting part is of a T-shaped structure, and the whole lower mounting part is of an inverted T-shaped structure; the upper mounting part is attached to the outer side surface of the arc-shaped rigid chord member, and the arc-shaped rigid chord member is clamped in the middle; the lower mounting portion is provided with a mounting hole, and two ends of the lower chord flexible inhaul cable are respectively connected with the arc-shaped rigid chord member and the mounting hole, so that the arc-shaped rigid chord member is tensioned.
2. The steel-wood composite beam string structure according to claim 1, wherein the arc-shaped rigid chord member is an upper chord square wood member.
3. The steel-wood composite beam string structure according to claim 2, wherein the brace is a square wood brace.
4. The steel-wood combined beam string structure as claimed in claim 3, wherein a second groove is formed in the middle of the brace rod on the side far away from the arc-shaped rigid chord member, and the lower mounting portion is formed by embedding a second steel connecting plate into the second groove and connecting the two steel connecting plates with each other through bolts.
5. The steel-wood composite beam string structure as claimed in claim 2, wherein the lower-string flexible bracing cable comprises a connecting wall plate and a flexible rod, and one end of the flexible rod is hinged with the connecting wall plate.
6. The steel-wood combined beam string structure according to claim 5, wherein the middle parts of the two ends of the upper-string square wood member are provided with a first groove body, the connecting wall plate is embedded and attached to the inner wall of the first groove body, and the connecting wall plate is connected in a penetrating manner through bolts.
7. The steel-wood composite beam string structure according to claim 6, wherein the connection between the connecting wall plate and the upper chord square wood member is a polygonal wide plate, and the connection between the connecting wall plate and the lower chord flexible inhaul cable is a rectangular narrow plate extending from the lower end of the wide plate.
8. The steel-wood composite beam string structure according to any one of claims 1 to 7, wherein the other end of the lower-string flexible inhaul cable is connected with the second steel connecting plate through a pin shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122158248.9U CN217400102U (en) | 2021-09-08 | 2021-09-08 | Steel-wood combined beam string structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122158248.9U CN217400102U (en) | 2021-09-08 | 2021-09-08 | Steel-wood combined beam string structure |
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| CN217400102U true CN217400102U (en) | 2022-09-09 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115992553A (en) * | 2023-02-10 | 2023-04-21 | 四川省建筑设计研究院有限公司 | Rotatable stay bar connecting node of beam string and construction method thereof |
| CN116005808A (en) * | 2023-02-10 | 2023-04-25 | 四川省建筑设计研究院有限公司 | Rolling tensioning node of beam string and construction method thereof |
| CN117947974A (en) * | 2024-03-26 | 2024-04-30 | 中国建筑设计研究院有限公司 | Prestress reinforced wood roof truss |
-
2021
- 2021-09-08 CN CN202122158248.9U patent/CN217400102U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115992553A (en) * | 2023-02-10 | 2023-04-21 | 四川省建筑设计研究院有限公司 | Rotatable stay bar connecting node of beam string and construction method thereof |
| CN116005808A (en) * | 2023-02-10 | 2023-04-25 | 四川省建筑设计研究院有限公司 | Rolling tensioning node of beam string and construction method thereof |
| CN117947974A (en) * | 2024-03-26 | 2024-04-30 | 中国建筑设计研究院有限公司 | Prestress reinforced wood roof truss |
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