CN212562585U - Prosthetic devices of chevron shape log roof truss lower chord - Google Patents
Prosthetic devices of chevron shape log roof truss lower chord Download PDFInfo
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- CN212562585U CN212562585U CN202020437229.2U CN202020437229U CN212562585U CN 212562585 U CN212562585 U CN 212562585U CN 202020437229 U CN202020437229 U CN 202020437229U CN 212562585 U CN212562585 U CN 212562585U
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- log
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Abstract
The utility model relates to a prosthetic devices of chevron shape log roof truss lower chord belongs to the old room of wood system and reforms transform technical field. The device comprises an end steel shoe, an oblique reinforcing screw rod and a middle vertical web member reinforcing device; through the utility model provides a lower chord support position and lower chord and vertical pull rod node's structure reinforcing apparatus plays the optimal reinforcing effect of "weak component of strong node" when repairing to old log roof truss that the time of the relatively long time of the generation. The application of the utility model can furthest retain the historical appearance of the log roof truss structure system, and reduce the degree of influencing the appearance of the old member on the premise that the strength detection of the member is effective; meanwhile, the roof truss repair meets the modern design bearing capacity requirement.
Description
Technical Field
The utility model relates to a prosthetic devices of chevron shape log roof truss lower chord belongs to the old room of wood system and reforms transform technical field.
Background
Under the background of the transformation of urban capacity at present, the old industrial buildings are transformed and utilized, and the field of the transformation of the industrial buildings (structures) has a large market space. The general design concept in old building reconstruction is to reserve the appearance of the original building structure as much as possible and utilize the original structural material. However, old buildings in the long-term are usually provided with more log roof trusses, the new standard requirements of the existing buildings for energy conservation, water resistance, heat preservation, fire protection and practical and beautiful requirements are higher than the standard requirements adopted in the original building design, the original roof system can be required to bear larger design load in the reconstruction design, the wood material framework of the original log roof truss can hardly meet the stress requirement, so that the roof system can not meet the current design load requirement, and particularly, the lower chord of the roof truss mainly bearing the axial tensile stress needs to bear larger design load. Therefore, the technical field needs to solve the problem of how to improve the design load borne by the lower chord of the roof truss through transformation, so that the wooden material framework of the original round wooden roof truss meets the greater stress requirement, and the roof system meets the requirement of the current design load.
Disclosure of Invention
The utility model aims at solving the problem of how to improve the design load that the chord bore under the roof truss through reforming transform, and the wooden material framework that makes the former circle wood roof truss satisfies the requirement of bigger design load.
In order to solve the problems, the technical scheme adopted by the utility model is to provide a repairing device for a herringbone log roof truss lower chord, which comprises an end steel boot, an oblique reinforcing screw rod and a middle vertical web member reinforcing device; end steel boots are arranged at the junctions between the transverse roof truss beams and the roof upper chord inclined beams of the herringbone log roof trusses, and U-shaped steel structures are arranged on the end steel boots and sleeved on the peripheries of logs of the transverse roof truss beams; an oblique reinforcing screw rod penetrating through the steel shoe at the end part is arranged between the transverse roof truss beam and the roof upper chord oblique beam; a middle vertical web member reinforcing device is arranged between the transverse roof truss beam and the middle vertical web member; round steel for reinforcement is arranged between the end steel boot and the middle vertical web member reinforcing device.
Preferably, the upper part of the U-shaped steel structure of the end shoe is opened, and reinforcing steel plates for installing reinforcing round steel are respectively arranged on the outer sides of the steel plates on the two sides of the U-shaped steel structure.
Preferably, bolt holes are correspondingly formed in steel plates on two sides of the U-shaped steel structure of the end shoe; stud bolts I penetrating through the round wood of the transverse roof truss beam are arranged between the corresponding bolt holes.
Preferably, the end part of the end part steel shoe close to one side of the end part of the log of the transverse roof truss girder is provided with a steel plate stiffening rib.
Preferably, the middle vertical web member reinforcing device comprises a U-shaped steel clamping plate and a column tie flat steel; a U-shaped steel clamping plate with an upper opening sleeved on the periphery of the log of the transverse roof truss girder is arranged at the junction of the middle vertical web member and the transverse roof truss girder; upright post tie flat steel fixed on the middle vertical web member is arranged above the steel plates at the two sides of the U-shaped steel splint; a stud bolt II penetrating through the round wood of the transverse roof truss beam is arranged between the steel plates on the two sides of the U-shaped steel clamping plate; and a third stud bolt penetrating through the middle vertical web member is arranged between the two side upright post tie flat steels.
Preferably, a stiffening plate is arranged between the bottom plate of the U-shaped steel clamping plate and the outer sides of the steel plates on the two sides of the U-shaped steel clamping plate.
Preferably, a base for installing and reinforcing round steel is arranged on the outer side below the bottom plate of the U-shaped steel clamping plate; the reinforcing round steel is connected with the U-shaped steel clamping plate and the end steel shoe.
Preferably, the reinforcing round bar is set to be 28mm in diameter.
The utility model discloses with the support node in the last quarter position that roof truss atress is the biggest, cross in and the connected node of roof truss straight-bar and bracing adopt both ends steel boots parcel, the reinforcement measure of middle node steel sheet clamp has protected the unlikely destruction of log roof truss tip and lower chord connected node and has made the roof truss repair reach the design bearing capacity requirement after the transformation.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model provides a lower chord support position and lower chord and vertical pull rod node's structure reinforcing apparatus plays the optimal reinforcing effect of "strong node weak component" when repairing to old log roof truss that the time of the relatively long-term old times. The application of the utility model can furthest retain the historical appearance of the log roof truss structure system, and influence the appearance of the old member to the minimum extent on the premise that the strength detection of the member is effective; meanwhile, the roof truss can be repaired to meet the requirement of the modified design bearing capacity.
Drawings
Fig. 1 is a schematic view of the reinforcing structure of the main-span wooden house of the roof truss system of the present invention;
FIG. 2 is a schematic view of the structure of the end steel boots and the lower chord of the roof truss of the present invention;
FIG. 3 is a top view of the end steel shoe structure of the present invention;
FIG. 4 is a front view of the end steel boot structure of the present invention;
FIG. 5 is a sectional view of the end steel shoe structure of the present invention taken along line A-A;
FIG. 6 is a schematic structural view of the lower chord and the middle vertical web member of the present invention;
FIG. 7 is a B-B cross-sectional view of the lower chord and the middle vertical web member of the present invention;
reference numerals: 1. the end part steel shoe 2, the middle vertical web member reinforcing device 3, the stud bolt II 4 and the reinforcing round steel; 5, a U-shaped steel splint 6, steel plates 7 at two sides of a steel shoe at the end part, an oblique reinforcing screw 8, a first stud bolt 9, a reinforcing steel plate 10, a transverse roof truss beam 11, a roof upper chord oblique beam 12, a middle vertical web member 13, a stand column pulling flat steel 14, a steel plate reinforcing rib 15, a third stud bolt 16, a reinforcing plate 17, an original transverse roof truss beam pad
Detailed Description
In order to make the present invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings:
as shown in fig. 1-7, the utility model provides a repairing device for a herringbone log roof truss lower chord, which comprises an end steel shoe 1, an oblique reinforcing screw 7 and a middle vertical web member reinforcing device 2; an end steel shoe 1 is arranged at the junction between a transverse roof truss beam 10 and a roof upper chord inclined beam 11 of the herringbone round wood roof truss, and a U-shaped steel structure is arranged on the end steel shoe 1 and sleeved on the periphery of a round wood of the transverse roof truss beam; an inclined reinforcing screw 7 penetrating through an original transverse roof truss beam pad 17, an end steel shoe 1 and a roof upper chord inclined beam 11 is arranged between the transverse roof truss beam 10 and the roof upper chord inclined beam 11; a middle vertical web member reinforcing device 2 is arranged between the transverse roof truss beam 10 and the middle vertical web member 12; round steel 4 for reinforcement is arranged between the end steel boot 1 and the middle vertical web member reinforcement device 2; the upper part of the U-shaped steel structure of the end steel boot 1 is opened, and the outer sides of the steel plates 6 at the two sides of the end steel boot of the U-shaped steel structure are respectively provided with a reinforcing steel plate 9 for installing the reinforcing round steel 4. Bolt holes are correspondingly arranged on the steel plates 6 at the two sides of the U-shaped steel structure of the end steel boot 1; a first stud bolt 8 penetrating through a log of the transverse roof truss girder 10 is arranged between the corresponding bolt holes; the end part of the end part steel shoe 1 close to one side of the log end part of the transverse roof truss girder 10 is provided with a steel plate stiffening rib 14. The middle vertical web member reinforcing device 2 comprises a U-shaped steel clamping plate 5 and a stand column tie flat steel 13; a U-shaped steel splint 5 with an upper opening sleeved on the periphery of the log of the transverse roof truss girder is arranged at the junction of the middle vertical web member 12 and the transverse roof truss girder 10; upright post tie flat steel 13 fixed on the middle vertical web member 12 is arranged above the steel plates at the two sides of the U-shaped steel splint 5 and props against the steel plates at the two sides of the U-shaped steel splint 5; a stud bolt II 3 penetrating through a log of the transverse roof truss beam is arranged between the steel plates at two sides of the U-shaped steel clamping plate 5; and a third stud bolt 15 penetrating through the middle vertical web member is arranged between the upright post tie flat steels at the two sides. A stiffening plate 16 is arranged between the bottom plate of the U-shaped steel splint 5 and the outer sides of the steel plates at the two sides of the U-shaped steel splint 5; a base for installing the reinforcing round steel 4 is arranged on the outer side below the bottom plate of the U-shaped steel clamping plate 5; the reinforcing round steel 4 is connected with the U-shaped steel clamping plate 5 and the end steel boot 1; the diameter of the reinforcing round bar 4 was set to 28 mm.
The connecting node of the roof truss system and the structural bent frame column is the most key node in the stress system of the roof truss structure. The utility model discloses a reinforcement way is 11 end connection departments of string sloping on horizontal roof truss roof beam 10 and roofing for horizontal roof truss roof beam 10 tip passes through steel boot 1 parcel, utilize a 8 anchor of stud to go into old log lower chord inside and former lower chord to be connected through 4M 20 screw rod slant reinforcement screw 7 by roof beam backing plate 17 through steel boot 1 and roofing upper chord sloping 11 connections, form whole outsourcing steel construction rigid connection node, with the effect of playing roof truss tip and support connected node reinforcement.
The joint of the lower chord of the roof truss and the vertical rod of the roof truss, in particular to the reinforcement of the part with larger internal force coefficient of connecting rod pieces such as 1/3 span or 1/4 span. The reinforcing of the part is mainly a U-shaped folding mode formed by additionally arranging three steel plates at the bottom and two sides of an old log, and the reinforcing is taken as a reinforcing base point and is rigidly connected with vertical rods and inclined rods in all connecting directions in a pull rod or bolt mode to achieve the effect of reinforcing steel members with main stress nodes. After the connecting node of the old log member is reinforced by the steel member, the reinforced area is small, so that the reinforced part can be better wrapped by using materials such as PVC and the like, and the surface of the PVC material is colored, so that the building effect of the same color and texture as those of the treated surface layer of the old log at the periphery is achieved; the ancient style of the old building is restored as far as possible.
The foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the present invention in any way and in any way, and it should be understood that modifications and additions may be made by those skilled in the art without departing from the scope of the present invention. Those skilled in the art can make various changes, modifications and evolutions equivalent to those made by the above-disclosed technical content without departing from the spirit and scope of the present invention, and all such changes, modifications and evolutions are equivalent embodiments of the present invention; meanwhile, any changes, modifications and evolutions of equivalent changes to the above embodiments according to the actual technology of the present invention are also within the scope of the technical solution of the present invention.
Claims (8)
1. The utility model provides a prosthetic devices of chevron shape log roof truss lower chord which characterized in that: the device comprises an end steel shoe, an oblique reinforcing screw rod and a middle vertical web member reinforcing device; end steel boots are arranged at the junctions between the transverse roof truss beams and the roof upper chord inclined beams of the herringbone log roof trusses, and U-shaped steel structures are arranged on the end steel boots and sleeved on the peripheries of logs of the transverse roof truss beams; an oblique reinforcing screw rod penetrating through the steel shoe at the end part is arranged between the transverse roof truss beam and the roof upper chord oblique beam; a middle vertical web member reinforcing device is arranged between the transverse roof truss beam and the middle vertical web member; round steel for reinforcement is arranged between the end steel boot and the middle vertical web member reinforcing device.
2. A chevron log roof truss lower chord repair device as claimed in claim 1 wherein: the upper part of the U-shaped steel structure of the end steel boot is provided with an opening, and the outer sides of the steel plates at the two sides of the U-shaped steel structure are respectively provided with a reinforcing steel plate for installing and reinforcing round steel.
3. A chevron log roof truss lower chord repair device as claimed in claim 2 wherein: bolt holes are correspondingly formed in steel plates on two sides of the U-shaped steel structure of the end steel shoe; stud bolts I penetrating through the round wood of the transverse roof truss beam are arranged between the corresponding bolt holes.
4. A chevron log roof truss lower chord repair device as claimed in claim 3 wherein: and a steel plate stiffening rib is arranged on the end head part of one side of the end part steel shoe close to the log end part of the transverse roof truss beam.
5. A chevron log roof truss lower chord repair device as claimed in claim 4 wherein: the middle vertical web member reinforcing device comprises a U-shaped steel clamping plate and upright post tie flat steel; a U-shaped steel clamping plate with an upper opening sleeved on the periphery of the log of the transverse roof truss girder is arranged at the junction of the middle vertical web member and the transverse roof truss girder; upright post tie flat steel fixed on the middle vertical web member is arranged above the steel plates at the two sides of the U-shaped steel splint; a stud bolt II penetrating through the round wood of the transverse roof truss beam is arranged between the steel plates on the two sides of the U-shaped steel clamping plate; and a third stud bolt penetrating through the middle vertical web member is arranged between the two side upright post tie flat steels.
6. A chevron log roof truss lower chord repair device as claimed in claim 5 wherein: and a stiffening plate is arranged between the bottom plate of the U-shaped steel clamping plate and the outer sides of the steel plates on the two sides of the U-shaped steel clamping plate.
7. A chevron log roof truss lower chord repair device as claimed in claim 6 wherein: a base for installing reinforcing round steel is arranged on the outer side below the bottom plate of the U-shaped steel clamping plate; the reinforcing round steel is connected with the U-shaped steel clamping plate and the end steel shoe.
8. A chevron log roof truss lower chord repair device as claimed in claim 7 wherein: the diameter of the reinforcing round steel is set to be 28 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020437229.2U CN212562585U (en) | 2020-03-30 | 2020-03-30 | Prosthetic devices of chevron shape log roof truss lower chord |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020437229.2U CN212562585U (en) | 2020-03-30 | 2020-03-30 | Prosthetic devices of chevron shape log roof truss lower chord |
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| CN212562585U true CN212562585U (en) | 2021-02-19 |
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| CN202020437229.2U Active CN212562585U (en) | 2020-03-30 | 2020-03-30 | Prosthetic devices of chevron shape log roof truss lower chord |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114704029A (en) * | 2022-03-21 | 2022-07-05 | 北京华清安地建筑设计有限公司 | Steel-wood combined roof truss structure |
-
2020
- 2020-03-30 CN CN202020437229.2U patent/CN212562585U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114704029A (en) * | 2022-03-21 | 2022-07-05 | 北京华清安地建筑设计有限公司 | Steel-wood combined roof truss structure |
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