CN206917084U - A kind of steel straw profile combines flexural member - Google Patents
A kind of steel straw profile combines flexural member Download PDFInfo
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- CN206917084U CN206917084U CN201720774091.3U CN201720774091U CN206917084U CN 206917084 U CN206917084 U CN 206917084U CN 201720774091 U CN201720774091 U CN 201720774091U CN 206917084 U CN206917084 U CN 206917084U
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Abstract
The utility model provides a kind of steel straw profile combination flexural member, including：Steel pipe, internal core is filled with steel pipe, is bonded together between the inwall of the internal core and steel pipe by structure glue；The internal core includes：Layer of wood, straw profile layer, structure glue bonding layer；Together with the layer of wood is bonded and fixed at straw profile layer by structure glue bonding layer；The straw profile layer is located at square steel tube tension side, and layer of wood is located at steel pipe compression side.The utility model is after external load is born, because internal core provides enough abilities for resisting local deformation for steel, high strength characteristics when steel can play tension, there are FRP fibers in section bar, local tensile property is also preferable so that combined member bearing capacity is greatly improved compared to clean steel load bearing beam power.
Description
Technical field
The utility model belongs to construction engineering technical field, more particularly to a kind of steel-straw profile combination flexural member.
Background technology
With the quickening of Urbanization in China and new countryside construction paces, a large amount of construction in house cause natural, ecological to lose
Weighing apparatus, there is an urgent need to develop and using can Sustainable development architecture material, alleviate and eliminate because excessively construction to ecological environment
Caused by harm.Therefore, the discarded recycling of straw from village is to economize on resources, and goes on the only way of sustainable development.At present
Existing many stalk wallboard patents and non-patent technology, universal method are the physical blending moulds by different materials ratio both at home and abroad
The shortcomings that pressure forms, and this kind of sheet material is common is that water proofing property is very poor, and engineering is difficult to widely apply.
Utility model content
The purpose of this utility model is solve the defects of above-mentioned prior art is present, there is provided a kind of steel-stalk mixed type
Material combined member and forming method, it is low, perishable, easy to solve the easy unstability of light gauge cold-formed steel shape and straw profile compression strength
It is combustion, easy to crack and the problems such as damage by worms.
A kind of steel-straw profile combination flexural member, including：Steel pipe, internal core, the inside are filled with steel pipe
It is bonded together between core and the inwall of steel pipe by structure glue；
The internal core includes：Layer of wood, straw profile layer, structure glue bonding layer；The layer of wood and straw profile
Layer is bonded and fixed at together by structure glue bonding layer；The straw profile layer is located at square steel tube tension side, and layer of wood is located at
Steel pipe compression side.
Further, steel as described above-straw profile combination flexural member, is distributed with some preformed holes on steel pipe
Hole.
Further, steel as described above-straw profile combination flexural member, parallel interval is provided with some on steel pipe
Bar steel hoop.
Further, steel as described above-straw profile combination flexural member, the both ends on steel pipe are welded with end plate,
Bolt hole is provided with end plate.
Further, steel as described above-straw profile combination flexural member, is welded between end plate and steel pipe and puts more energy into
Plate.
The advantages of the utility model：
The utility model with polypropylene fibre mixing compression molding material by straw, cotton stem, rice etc. by forming stalk
Section bar layer, then two kinds of material of layer of wood and straw profile layer are combined, form steel-stalk mixing section bar combined member.Steel-
Stalk mixing section bar combined member is after external load is born, because internal core provides enough resistance local deformations for steel
Ability, high strength characteristics when steel can play tension have FRP fibers in section bar, and local tensile property is also preferable so that combination
Element bearing capacity is greatly improved compared to clean steel load bearing beam power.Further, since steel bond effect to internal core, can
Prevent internal core from ftractureing, and improve fire resisting, corrosion resistant and mothproof performance that there is important actual meaning to improving structural elements durability
Justice.
Brief description of the drawings
Fig. 1 is that the utility model steel-straw profile combines flexural member three-dimensional overall schematic；
Fig. 2 is that the utility model steel-straw profile combines flexural member three-dimensional cut-away illustration；
Fig. 3 is that the utility model steel-straw profile combines core schematic three dimensional views inside flexural member.
Reference：
1st, layer of wood；2nd, straw profile layer；3rd, structure glue bonding layer；4th, internal core；5th, steel pipe；6th, reserving hole；7、
Steel hoop；8th, bolt hole；9th, end plate；10th, stiffener.
Embodiment
To make the purpose of this utility model, technical scheme and advantage clearer, below technical side in the utility model
Case is clearly and completely described, it is clear that and described embodiment is the utility model part of the embodiment, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belong to the scope of the utility model protection.
As Figure 1-3, originally it is a kind of steel of new offer-straw profile combination flexural member, including：Layer of wood 1 and straw
Stalk section bar layer 2, the layer of wood 1 bind into internal core 4 with straw profile layer 2 by structure glue bonding layer 3；Internal core 4
It is filled in the thin-walled square steel tube 5 for offering reserving hole 6, to improve the examining tensile behavior of combination beam；It is spaced on thin-walled square steel tube 5
Steel hoop 7 is welded, carries out local strengthening, avoids that local buckling occurs；Structure glue bonding layer 3 is injected in thin-walled square steel tube 5, with
Reduce the sliding between internal core 4 and thin-walled square steel tube 5, strengthen the resistance to overturning of the two；The both ends of thin-walled square steel tube 5 and band
The end plate 9 for having bolt hole 8 is welded to connect, and stiffener 10 is welded on end plate 9 and the four sides opening position of thin-walled square steel tube 5, ultimately forms
Steel-stalk mixing section bar combined member.
Steel provided by the utility model-straw profile combination flexural member preparation method is as follows：
Step 1：The materials such as timber, straw profile layer, thin-walled square steel tube, steel hoop, end plate, stiffener are got out by design
Material；
Step 2：Timber and straw profile layer are binded into internal core by structure glue bonding layer；
Step 3：Reserving hole is opened up to thin-walled square steel tube interval, and steel hoop interval is welded on thin-walled square steel tube；
Step 4：Internal core is filled in and offers reserving hole and is welded with the thin-walled square steel tube of steel hoop, straw
Stalk section bar layer is located at thin-walled square steel tube tension side, and lumber layer is located at thin-walled square steel tube compression side；
Step 5：Structure glue is injected in thin-walled square steel tube by reserving hole；
Step 6：In end plate of the thin-walled square steel tube both ends welding with bolt hole, stiffener 10 is welded on end plate afterwards
With thin-walled square steel tube four sides opening position, steel-stalk mixing section bar combined member is eventually formed.
From material composition with setting about on plate construction, stalk is a kind of toughness material, mixes and stirs mode by cementing, and add
Enter the more preferable FRP chopped fibers of tensile property, the section bar of low-cost and high-performance can be developed, the section bar produced is tucked into
Can solve its water proofing property difference and problem of easy degradation in cold-formed thin-walled steel pipe, rod member is from heavy and light, and a large amount of stalks that can use up, and becomes useless
For treasured.
During building structure construction, the duration is tight, human cost is high, steel member Site Welding has been to influence building industry
The major issue of change process, therefore the component processed is connected by screw bolts with post, can solve the problems, such as Welder's duration very well；
Roof uses inclined roof more in modern house, and the oblique roof system of armored concrete from great because being also easy to produce crack and seepage and existing is applied
A series of shortcomings such as the work cycle is long, casting concrete difficulty is big, timber structure pitched roof cost is low, and prefabricated degree is high, scene processing
Easy to assembly, speed of application is fast, and when it is used for purlin, than channel cross-section two-way bending, it is twin shaft symmetrical section
High capacity, but its anti-corrosion, mothproof and fire resistance limit its extensive application, and China's timber resources deficiency.Further, since
China is a large agricultural country, and annual agricultural crop straw yield reaches several hundred million tons, and stalk processing mode is predominantly burned at present, but right
Polluted caused by environment too seriously, crops, which are backfilling into soil, to cause soil to harden, it is clear that stalk is processed into section bar recovery
Recycle, be a kind of processing mode with stronger practical meaning in engineering.
In by kinking structure, rod member is generous bigger, is unsatisfactory for steel construction for light gauge cold-formed steel shape house roof truss and floor beam etc.
Radius-thickness ratio limit value requirement in design specification, under outer load action, partly or wholly unstability, the change of unstability pre-structure easily occurs
Shape is very small, and unexpected unstability increased dramatically the deformation of structural elements, and ultimately result in architecture lost bearing capacity and
Overall slump.Therefore, the light materials such as straw profile are dosed to steel duct, stable bearing capacity can be significantly improved,
Steel pipe plays the internal core of protection simultaneously, avoids damaging by worms, rots and the effect such as fire prevention, and rod member batch production shaping production, product
The readily available guarantee of quality, has important practical significance.
In addition, in cold formed steel structure assembles house, load system is to be passed through certainly using panel and lightgage steel joist
The assembled wall that mode connects for screw forms is attacked, outer cladding boards diaphragms effect is obvious, and existing experimental study shows, due to multilayer or self tapping
Screw fail or board cracking cause wall rapid loss bearing capacity, therefore when being applied to wall top axle and pressing in big building
It is extremely restricted, influences popularization and application.The straw profile of recyclable recycling is filled into steel pipe, and can to effectively improve steel pipe steady
Determine bearing capacity, keel can still continue to carry after failure of face slab, reduce the dependence of counter plate and connection, form resistance and destroy
Second defence line.
It is another then, because the linear expansion coefficient of straw profile is approximately the 1/300 of steel linear expansion coefficient, identical temperature make
With both lower deformations.During rod member stress, to improve cooperative transformation between the two, the ability for resisting outer load effect is improved,
Its surface is cold-pressed when being molded for shaped steel or cold-rolling treatment so that component surface carries concavo-convex indentation, while is mixed in steel-stalk
When profile material combination beam is molded, constraint end is taken, the internally mode such as reperfusion structure glue, to increase steel pipe and straw profile
Frictional force, so as to improve the two cooperative transformation ability.
Binded between timber and straw board by structure glue and form internal core, be filled in the thin-walled for offering reserving hole
In square steel tube；Interval is welded with steel hoop on thin-walled square steel tube, and cuff is welded on tube wall, and is welded with the end plate with bolt hole
Connect in succession, stiffener is welded on end plate and thin-walled square steel tube four sides opening position；Structure glue injects thin-walled square steel by reserving hole
Guan Zhong, after structure glue flows out from another hole, show that encapsulating is closely knit.
Inside fill out straw profile to be square, the section bar produced through the processing technology such as extruding, being molded；
Using agricultural crop straw or branch crush into strips and it is powdered after, and the chopped fiber such as internal filled polypropylene fiber
After stirring, its tensile bearing capacity is improved, it is good from heavy and light, stability.
Interval is welded with steel hoop on thin-walled square steel tube, carries out local strengthening, avoids occurring local buckling and tube wall along rib
The aperature of angle；
Thin-walled square steel tube tension and compression-side, which are spaced apart, is provided with reserving hole, so as to injecting structure glue；
Structure glue is injected in thin-walled square steel tube, to reduce the sliding between internal core and thin-walled square steel tube, enhancing two
The resistance to overturning of person, improve the two cooperative transformation ability.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：
It can still modify to the technical scheme described in foregoing embodiments, or which part technical characteristic is carried out etc.
With replacement；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the utility model technology
The spirit and scope of scheme.
Claims (5)
- A kind of 1. steel-straw profile combination flexural member, it is characterised in that including：Steel pipe (5), filled with interior in steel pipe (5) Portion's core (4), it is bonded together between the internal core (4) and the inwall of steel pipe (5) by structure glue；The internal core (4) includes：Layer of wood (1), straw profile layer (2), structure glue bonding layer (3)；The layer of wood (1) Together with being adhesively fixed with straw profile layer (2) by structure glue bonding layer (3)；The straw profile layer (2) is located at square steel tube Tension side, layer of wood (1) are located at steel pipe compression side.
- 2. steel according to claim 1-straw profile combination flexural member, it is characterised in that be distributed with steel pipe (5) Some reserving holes (6).
- 3. steel according to claim 1-straw profile combination flexural member, it is characterised in that upper parallel in steel pipe (5) Every being provided with some steel hoops (7).
- 4. steel according to claim 1-straw profile combination flexural member, it is characterised in that the both ends on steel pipe (5) End plate (9) is welded with, bolt hole (8) is provided with end plate (9).
- 5. steel according to claim 4-straw profile combination flexural member, it is characterised in that in end plate (9) and steel pipe (5) stiffener (10) is welded between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720774091.3U CN206917084U (en) | 2017-06-29 | 2017-06-29 | A kind of steel straw profile combines flexural member |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720774091.3U CN206917084U (en) | 2017-06-29 | 2017-06-29 | A kind of steel straw profile combines flexural member |
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| CN206917084U true CN206917084U (en) | 2018-01-23 |
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| CN201720774091.3U Expired - Fee Related CN206917084U (en) | 2017-06-29 | 2017-06-29 | A kind of steel straw profile combines flexural member |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109898657A (en) * | 2019-03-26 | 2019-06-18 | 上海息数建筑科技有限公司 | Support frame and support frame |
| CN109898656A (en) * | 2019-03-26 | 2019-06-18 | 上海息数建筑科技有限公司 | Support frame and the method for making support frame |
| CN111576735A (en) * | 2020-04-15 | 2020-08-25 | 湖州职业技术学院 | Steel pipe-recombined bamboo composite structural part and production method thereof |
-
2017
- 2017-06-29 CN CN201720774091.3U patent/CN206917084U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109898657A (en) * | 2019-03-26 | 2019-06-18 | 上海息数建筑科技有限公司 | Support frame and support frame |
| CN109898656A (en) * | 2019-03-26 | 2019-06-18 | 上海息数建筑科技有限公司 | Support frame and the method for making support frame |
| CN111576735A (en) * | 2020-04-15 | 2020-08-25 | 湖州职业技术学院 | Steel pipe-recombined bamboo composite structural part and production method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180123 Termination date: 20180629 |