CN101487331A - High-strength durable wooden I-shaped beam - Google Patents
High-strength durable wooden I-shaped beam Download PDFInfo
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- CN101487331A CN101487331A CNA2009100251297A CN200910025129A CN101487331A CN 101487331 A CN101487331 A CN 101487331A CN A2009100251297 A CNA2009100251297 A CN A2009100251297A CN 200910025129 A CN200910025129 A CN 200910025129A CN 101487331 A CN101487331 A CN 101487331A
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- 238000005470 impregnation Methods 0.000 claims description 9
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Abstract
The invention provides a high-strength durable wood I-typed beam which has the advantages of high rigidity, lightweight, high-strength, convenient assembly and disassembly, easy cutting, high cost performance, high durability, turnover use for an average year, and industrialized production. The high-strength durable wood I-typed beam comprises a flange girth, a web plate and an end protective sleeve. The upper surface, lower surface and the interior of a flange girth substrate in the flange girth are provided with flange girth modified processing single plates. The surface and the interior of a web plate substrate in the web plate are provided with web plate modified processing single plates. The flange girth modified processing single plates and the web plate modified processing single plates are glue soaking processing single plates. The used adhesive selects water soluble phenol resin with low molecular weight or melamine-formaldehyde resin. The high-strength durable wood I-typed beam is mainly used as the supporter in a building moulding board system, and can also be used in the fields such as supporting members of building structure roofs, and the like.
Description
Technical field
The present invention relates to a kind of building operations or building structure wooden I-shaped beam, main (but not exclusively) is used for fields such as the support of construction formwork system and building structure building roof system supporting member.
Background technology
Construction formwork is the important tool of concrete structure engineering construction.In the front template operation process, template system commonly used has wooden form, steel form and steel frame plywood formwork etc., generally has shortcomings such as yielding, that engineering quantity is big, operating expenses is high, the number of turnover is few.In the building course of general concrete structure, form work engineering accounts for 20%～30% of concrete structure engineering cost, accounts for 30%～40% of the amount of labour used, accounts for about 50% of the duration.Therefore, be necessary very much to seek a kind of novel construction formwork material and system.
Simultaneously, traditional building materials such as steel, cement, loam brick are adopted in China's building structure in a large number, consumed a large amount of natural resources and the energy, and environment is also polluted and destroys.The wood grows process is also favourable to environment, the processing of timber simultaneously, use and discardedly can not cause serious pollution environment, therefore timber is used for building field and helps energy-saving and emission-reduction, be typical green building material, and the development wooden construction also is fit to the development tactics of China's energy-conserving and environment-protective and green building.And for wildwood scarcity of resources, the resourceful China of fast-growing woods, the task of top priority is how to select the wooden construction material for use.
Engineered wood is to be main raw material(s) with the solid wood, adopts high-performance environmentally-friendly type bonding adhesive, and the composite wood that utilizes modern timber processing treatment technology to make can be accomplished the big usefulness of small wood, the excellent usefulness of bad material.At present, this type of structural meterials mainly comprises glued laminated timber (Glulam), laminated veneer lumber (LVL), veneer (Plywood), oriented strand board (OSB), parallel strand laminated wood (PSL) and laminated strand lumber (LSL) etc.Engineered Wood Product Manufacturing also has following advantage: kept the good characteristic of solid wood sawn timber, had characteristics such as material is even, permissible stress is high, the intensity coefficient of variation is little, dimensional stability good, moistureproof, anticorrosion, fire-retardant; In addition, engineered wood partly substituted big footpath level the high-quality log, protected ecological environment, reduced the economy and society cost.
Summary of the invention
The objective of the invention is in order to overcome the deficiencies in the prior art, but provide that a kind of rigidity is big, high-strength light, easy accessibility, be easy to cut, cost performance height, durability are strong, can have enough to meet the need the wooden I-shaped beam that uses large-scale industrialization to produce throughout the year.
Technical scheme of the present invention is: a kind of wooden I-shaped beam of high-strength durable; comprise the edge of a wing, web and end protective sleeve; the upper and lower surface of edge of a wing substrate and inside are provided with edge of a wing modification and handle veneer in the described edge of a wing; the surface of described web median ventral plate substrate and inside are provided with the web modification and handle veneer; veneer is handled in the modification of the described edge of a wing and web modification processing veneer is that impregnation is handled veneer, and used bonding adhesive is selected low-molecular-weight water soluble phenol resin or melamine formaldehyde resin for use.
Finger joint lumber, laminated veneer lumber, parallel strand laminated wood or laminated strand lumber mainly can be adopted in the described edge of a wing; When at the inner composite modified processing veneer of the edge of a wing substrate, edge of a wing modification is handled veneer and should be provided with symmetrically in the cross section.
Described web mainly can adopt veneer, oriented wood chipboard, three layer construction plate, laminated veneer lumber or solid wood board; When at the inner composite modified processing veneer of web substrate, the web modification is handled veneer and should be provided with symmetrically in the cross section.
The raw material that the described edge of a wing and web adopt are mainly fast growing wood, as quick growth poplar wood, China fir, masson pine, pine, birch, Liu An, Eucalyptus etc.
Can adopt box pin joint to be connected between described web and the edge of a wing, and the crown number can be 1,2 or 3 in the web.
Described end protective sleeve can adopt crashproof plastics, composite material or metal to make.
Described edge of a wing modification is handled veneer and web modification and is handled veneer and can be one or more layers, in order to improve performances such as its intensity, anticorrosion, fire-retardant and anti-deformation; For the panel of the finger joint lumber edge of a wing or three layer construction plate web, also can be anticorrosion, fire-retardant, processing such as toughness reinforcing enhancing to itself carrying out.
The rift grain direction that veneer is handled in the modification of the described edge of a wing is consistent with the i beam length direction; The rift grain direction of web modification processing veneer can be consistent with the i beam length direction, if multilayer, but also vertical interlaced configuration between adjacent layer; Modification handle veneer can with its substrate one-shot forming.
The described edge of a wing and web, its cross section all keeps balanced configuration.
Veneer is handled in the modification of the described edge of a wing and the web modification processing modification processing method that veneer adopted is handled except carrying out impregnation to veneer, also can simultaneously or adopt anticorrisive agent, fire retardant etc. that veneer is carried out function treatment separately.
Described wooden I-shaped beam surface, reach the equal brushing waterproof paint in the cutting place of punching all around.
In the whole I-shape construction spare, pressure is mainly born on the edge of a wing, and provides resistance to deformation required rigidity, and web is mainly cut, simultaneously two edges of a wing are connected into integral body, effects such as that the rotary cut venner that modification is handled mainly has is anticorrosion, fire-retardant, water-fast, acid and alkali-resistance, anti-deformation, toughness reinforcing enhancing.Whole i beam can be reused throughout the year, and material 100% can reuse, 100% can be used as fuel and environmental sound.
Described i beam is mainly used in the support in the construction formwork system, also can be used for fields such as building structure building roof system supporting member.
The present invention adapts to the needs of national advanced mould plate technique and construction technology, green building and energy-saving and emission-reduction, in conjunction with materials such as laminated veneer lumber (LVL), oriented wood chipboard (OSB), structural plywood (Plywood) and improved wood veneers, its predominant use is: the substitute products that 1) can be used as the traditional architecture template.Shortcoming such as that conventional template exists is yielding, engineering quantity is big, operating expenses is high, the number of turnover is few, but and this i beam has that rigidity is big, high-strength light, tear open conveniently, be easy to cutting, cost performance height, durability strong, can have enough to meet the need plurality of advantages such as using large-scale industrialization production throughout the year, can be used as construction formwork support carrying out utilization and extention fully.2) as building structure building roof system supporting member, also have performances such as energy-conserving and environment-protective.
The invention has the beneficial effects as follows: but rigidity is big, high-strength light, energy-conserving and environment-protective, tear open conveniently, be easy to cutting, cost performance height, durability strong, can have enough to meet the need the production of use large-scale industrialization throughout the year; Both can be used for the support in the construction formwork system, also can be used for fields such as building structure building roof system supporting member, can be general with external specialty products.
Description of drawings
Fig. 1 is the organigram of i beam of the present invention;
Fig. 2 is the cross-sectional view of Fig. 1.
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments:
In the accompanying drawings, 1 is the edge of a wing, and 2 is web, and 3 is the end protective sleeve, and 5 is box pin joint, and 6 are edge of a wing modification processing veneer, and 7 is edge of a wing substrate, and 8 is that veneer is handled in the web modification, and 9 is the web substrate.
Embodiment one:
As depicted in figs. 1 and 2, a kind of wooden I-shaped beam of high-strength durable comprises the upper and lower edge of a wing 1, middle pectoral plate 2 and end protective sleeve 3.The described edge of a wing 1 and web 2 all are provided with edge of a wing modification and handle veneer 6 and web modification processing veneer 8 on the surface, utilize low-molecular-weight water soluble phenol resin (PF) or melamine formaldehyde resin (MF) etc. that veneer is carried out impregnation and handle, thereby reach waterproof, anticorrosion, anti-deformation and effect such as fire-retardant.
Described edge of a wing substrate 7 is fast growing wood LVL such as poplar, in fast growing wood LVL such as poplar, one deck edge of a wing modification in the same way is set and handles veneer 6 every 1～3 layer of veneer, it is fast growing wood veneers (its rift grain direction is consistent with the i beam length direction) such as poplar that veneer 6 material therefors are handled in the modification of the described edge of a wing, and the edge of a wing 1 used sheet material can utilize the one-shot forming of LVL processing technology; Described web substrate 9 is fast growing wood glued boards such as poplar, in fast growing wood glued boards such as poplar, the modification of one deck web is set and handles veneer 8 every 1～3 layer of veneer, it is that fast-growing material through modification such as poplar is handled veneer (its face ply rift grain direction is consistent with the i beam length direction that veneer 8 material therefors are handled in described web modification, vertical interlaced disposes between the adjacent veneer), and web 2 used sheet materials can utilize the one-shot forming of veneer processing technology; The final edge of a wing 1 becomes wooden I-shaped beam through processes such as sanding, scale, mill teeth groove milling, gluing, assemblings again with web 2 used finished product sheet materials.The edge of a wing 1 of described i beam and web 2 middle sections all keep balanced configuration, and end protective sleeve 3 can be crashproof plastics, composite material or metal etc., simultaneously the i beam surface, reach all brushing waterproof paints of the cutting place of punching all around.
Embodiment two:
As depicted in figs. 1 and 2, a kind of wooden I-shaped beam of high-strength durable comprises the upper and lower edge of a wing 1, middle pectoral plate 2 and end protective sleeve 3.The described edge of a wing 1 and web 2 all are provided with edge of a wing modification and handle veneer 6 and web modification processing veneer 8 on the surface, utilize low-molecular-weight water soluble phenol resin (PF) or melamine formaldehyde resin (MF) etc. that veneer is carried out impregnation and handle, thereby reach waterproof, anticorrosion, anti-deformation and effect such as fire-retardant.
Described edge of a wing substrate 7 is fast growing wood LVL such as poplar, in fast growing wood LVL such as poplar, one deck edge of a wing modification in the same way is set and handles veneer 6 every 1～3 layer of veneer, it is fast growing wood veneers (its rift grain direction is consistent with the i beam length direction) such as poplar that veneer 6 material therefors are handled in the modification of the described edge of a wing, and the edge of a wing 1 used sheet material can utilize the one-shot forming of LVL processing technology; Described web substrate 9 is fast growing wood integrated timbers (its rift grain direction is consistent with the i beam length direction) such as masson pine, it is that fast-growing material through modification such as poplar is handled veneer (its face ply rift grain direction is consistent with the i beam length direction that veneer 8 material therefors are handled in described web modification, vertical interlaced configuration between the adjacent veneer), web 2 used sheet materials are adding man-hour, can at first utilize integrated timber and veneer processing technology respectively substrate 9 and web modification processing veneer 8 to be processed, and then substrate 9 and modification are handled veneer 8 through extrusion forming; The final edge of a wing 1 becomes wooden I-shaped beam through processes such as sanding, scale, mill teeth groove milling, gluing, assemblings again with web 2 used finished product sheet materials.The edge of a wing 1 of described i beam and web 2 middle sections all keep balanced configuration, and end protective sleeve 3 can be crashproof plastics, composite material or metal etc., simultaneously the i beam surface, reach all brushing waterproof paints of the cutting place of punching all around.
Embodiment three:
As depicted in figs. 1 and 2, a kind of wooden I-shaped beam of high-strength durable comprises the upper and lower edge of a wing 1, middle pectoral plate 2 and end protective sleeve 3.The described edge of a wing 1 is provided with edge of a wing modification and handles veneer 6 on the surface; Described web 2 is made up of three layers of integrated material wood-splicing, middle web substrate 9 is the masson pine integrated timber, it is the masson pine integrated material wood-splicing that veneer 8 is handled in the web modification on surface, utilize low-molecular-weight water soluble phenol resin (PF) or melamine formaldehyde resin (MF) etc. that veneer is carried out impregnation and handle, thereby reach waterproof, anticorrosion, anti-deformation and effect such as fire-retardant.
Described edge of a wing substrate 7 is fast growing wood LVL such as poplar, in fast growing wood LVL such as poplar, one deck edge of a wing modification in the same way is set and handles veneer 6 every 1～3 layer of veneer, it is fast growing wood veneers (its rift grain direction is consistent with the i beam length direction) such as poplar that veneer 6 material therefors are handled in the modification of the described edge of a wing, and the edge of a wing 1 used sheet material can utilize the one-shot forming of LVL processing technology; Described web substrate 9 is fast growing wood integrated timbers (its rift grain direction is consistent with the i beam length direction) such as masson pine, it is masson pine integrated material wood-splicing (its rift grain direction is consistent with the i beam length direction) that veneer 8 material therefors are handled in described web modification, and has passed through waterproof, anticorrosion, anti-deformation and processing such as fire-retardant.Web 2 used sheet materials are adding man-hour, can at first utilize the integrated timber processing technology respectively substrate 9 and web modification processing veneer 8 to be processed, and then substrate 9 and web modification are handled veneer 8 through extrusion forming; The final edge of a wing 1 becomes wooden I-shaped beam through processes such as sanding, scale, mill teeth groove milling, gluing, assemblings again with web 2 used finished product sheet materials.The edge of a wing 1 of described i beam and the cross section in the web 2 all keep balanced configuration, and end protective sleeve 3 can be crashproof plastics, composite material or metal etc., simultaneously the i beam surface, reach all brushing waterproof paints of the cutting place of punching all around.
Embodiment four:
As depicted in figs. 1 and 2, a kind of wooden I-shaped beam of high-strength durable comprises the upper and lower edge of a wing 1, middle pectoral plate 2 and end protective sleeve 3.The described edge of a wing 1 and web 2 are provided with on the surface all that veneer 6 is handled in edge of a wing modification and veneer 8 is handled in the web modification, utilize low-molecular-weight water soluble phenol resin (PF) or melamine formaldehyde resin (MF) thereby wait and veneer is carried out the impregnation processing reach waterproof, anticorrosion, anti-deformation and effect such as fire-retardant.
Described edge of a wing substrate 7 is fast growing wood integrated timbers (its rift grain direction is consistent with the i beam length direction) such as masson pine, it is fast growing wood veneers (its rift grain direction is consistent with the i beam length direction) such as poplar that veneer 6 material therefors are handled in the modification of the described edge of a wing, the edge of a wing 1 used sheet material is adding man-hour, can at first utilize integrated timber and veneer processing technology respectively substrate 7 and edge of a wing modification processing veneer 6 to be processed, and then substrate 7 and edge of a wing modification are handled veneer 6 through extrusion forming; Described web substrate 9 is fast growing wood glued boards such as poplar, in fast growing wood glued boards such as poplar, the modification of one deck edge of a wing is set and handles veneer 8 every 1～3 layer of veneer, it is that fast-growing material through modification such as poplar is handled veneer (its face ply rift grain direction is consistent with the i beam length direction that veneer 8 material therefors are handled in described web modification, vertical interlaced disposes between the adjacent veneer), and web 2 used sheet materials can utilize the one-shot forming of veneer processing technology; The final edge of a wing 1 becomes wooden I-shaped beam through processes such as sanding, scale, mill teeth groove milling, gluing, assemblings again with web 2 used finished product sheet materials.The edge of a wing 1 of described i beam and web 2 middle sections all keep balanced configuration, and end protective sleeve 3 can be crashproof plastics, composite material or metal etc., simultaneously the i beam surface, reach all brushing waterproof paints of the cutting place of punching all around.
Embodiment five:
As depicted in figs. 1 and 2, a kind of wooden I-shaped beam of high-strength durable comprises the upper and lower edge of a wing 1, middle pectoral plate 2 and end protective sleeve 3.The described edge of a wing 1 and web 2 are provided with on the surface all that veneer 6 is handled in edge of a wing modification and veneer 8 is handled in the web modification, utilize low-molecular-weight water soluble phenol resin (PF) or melamine formaldehyde resin (MF) thereby wait and veneer is carried out the impregnation processing reach waterproof, anticorrosion, anti-deformation and effect such as fire-retardant.
Described edge of a wing substrate 7 is fast growing wood integrated timbers (its rift grain direction is consistent with the i beam length direction) such as masson pine, it is fast growing wood veneers (its rift grain direction is consistent with the i beam length direction) such as poplar that veneer 6 material therefors are handled in the modification of the described edge of a wing, the edge of a wing 1 used sheet material is adding man-hour, can at first utilize integrated timber and veneer processing technology respectively substrate 7 and edge of a wing modification processing veneer 6 to be processed, and then substrate 7 and edge of a wing modification are handled veneer 6 through extrusion forming; Described web substrate 9 is fast growing wood integrated timbers (its rift grain direction is consistent with the i beam length direction) such as masson pine, it is that fast-growing material through modification such as poplar is handled veneer (its face ply rift grain direction is consistent with the i beam length direction that veneer 8 material therefors are handled in described web modification, vertical interlaced configuration between the adjacent veneer), web 2 used sheet materials are adding man-hour, can at first utilize integrated timber and veneer processing technology respectively substrate 9 and web modification processing veneer 8 to be processed, and then substrate 9 and web modification are handled veneer 8 through extrusion forming; The final edge of a wing 1 becomes wooden I-shaped beam through processes such as sanding, scale, mill teeth groove milling, gluing, assemblings again with web 2 used finished product sheet materials.The edge of a wing 1 of described i beam and web 2 middle sections all keep balanced configuration, and end protective sleeve 3 can be crashproof plastics, composite material or metal etc., simultaneously the i beam surface, reach all brushing waterproof paints of the cutting place of punching all around.
Embodiment six:
As depicted in figs. 1 and 2, a kind of wooden I-shaped beam of high-strength durable comprises the upper and lower edge of a wing 1, middle pectoral plate 2 and end protective sleeve 3.The described edge of a wing 1 is provided with edge of a wing modification and handles veneer 6 on the surface; Described web 2 is made up of three layers of integrated material wood-splicing, middle web substrate 9 is the masson pine integrated timber, it be the masson pine integrated material wood-splicing that veneer 8 is handled in the web modification on surface, utilize low-molecular-weight water soluble phenol resin (PF) or melamine formaldehyde resin (MF) thus etc. veneer carried out the impregnation processing reach waterproof, anticorrosion, anti-deformation and effect such as fire-retardant.
Described edge of a wing substrate 7 is fast growing wood integrated timbers (its rift grain direction is consistent with the i beam length direction) such as masson pine, it is fast growing wood veneers (its rift grain direction is consistent with the i beam length direction) such as poplar that edge of a wing veneer 6 material therefors are handled in described modification, the edge of a wing 1 used sheet material is adding man-hour, can at first utilize integrated timber and veneer processing technology respectively substrate 7 and edge of a wing modification processing veneer 6 to be processed, and then substrate 7 and edge of a wing modification are handled veneer 6 through extrusion forming; Described web substrate 9 is fast growing wood integrated timbers (its rift grain direction is consistent with the i beam length direction) such as masson pine, it is masson pine integrated material wood-splicing (its rift grain direction is consistent with the i beam length direction) that veneer 8 material therefors are handled in described web modification, and can carry out waterproof, anticorrosion, anti-deformation and processing such as fire-retardant as required.Web 2 used sheet materials are adding man-hour, can at first utilize the integrated timber processing technology respectively
Substrate 9 and web modification processing veneer 8 are processed, and then substrate 9 and web modification are handled veneer 8 through extrusion forming; The final edge of a wing 1 becomes wooden I-shaped beam through processes such as sanding, scale, mill teeth groove milling, gluing, assemblings again with web 2 used finished product sheet materials.The edge of a wing 1 of described i beam and the cross section in the web 2 all keep balanced configuration, and end protective sleeve 3 can be crashproof plastics, composite material or metal etc., simultaneously the i beam surface, reach all brushing waterproof paints of the cutting place of punching all around.
Claims (10)
1, a kind of wooden I-shaped beam of high-strength durable; comprise the edge of a wing (1), web (2) and end protective sleeve (3); it is characterized in that: the upper and lower surface of edge of a wing substrate (7) and inside are provided with edge of a wing modification and handle veneer (6) in the described edge of a wing (1); the surface of described web (2) median ventral plate substrate (9) and inside are provided with the web modification and handle veneer (8); veneer (6) is handled in the modification of the described edge of a wing and web modification processing veneer (8) is that impregnation is handled veneer, and used bonding adhesive is selected low-molecular-weight water soluble phenol resin or melamine formaldehyde resin for use.
2, the wooden I-shaped beam of a kind of high-strength durable according to claim 1 is characterized in that: the described edge of a wing (1) mainly adopts finger joint lumber, laminated veneer lumber, parallel strand laminated wood or laminated strand lumber.
3, the wooden I-shaped beam of a kind of high-strength durable according to claim 1 is characterized in that: described web (2) mainly adopts veneer, oriented wood chipboard, three layer construction plate, laminated veneer lumber or solid wood board.
4, the wooden I-shaped beam of a kind of high-strength durable according to claim 1, it is characterized in that: when at the inner composite modified processing veneer of edge of a wing substrate (7) and web substrate (9), veneer (6) is handled in edge of a wing modification and veneer (8) setting symmetrically in the cross section is handled in the web modification.
5, the wooden I-shaped beam of a kind of high-strength durable according to claim 1 is characterized in that: veneer (6) is handled in the modification of the described edge of a wing and web modification processing veneer (8) is one or more layers.
6, the wooden I-shaped beam of a kind of high-strength durable according to claim 1, it is characterized in that: it is consistent with the i beam length direction with the rift grain direction of web modification processing veneer (8) that veneer (6) is handled in the modification of the described edge of a wing, if multilayer, vertical interlaced configuration between adjacent layer.
7, the wooden I-shaped beam of a kind of high-strength durable according to claim 1 is characterized in that: the raw material that the described edge of a wing (1) and web (2) adopt are mainly fast growing wood.
8, the wooden I-shaped beam of a kind of high-strength durable according to claim 1 is characterized in that: described end protective sleeve (3) is crashproof plastics, composite material or metal etc.
9, the wooden I-shaped beam of a kind of high-strength durable according to claim 1 is characterized in that: the cross section of the described edge of a wing (1) and web (2) all keeps balanced configuration.
10, the wooden I-shaped beam of a kind of high-strength durable according to claim 1 is characterized in that: adopt box pin joint to be connected between the described edge of a wing (1) and the web (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100251297A CN101487331A (en) | 2009-02-24 | 2009-02-24 | High-strength durable wooden I-shaped beam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100251297A CN101487331A (en) | 2009-02-24 | 2009-02-24 | High-strength durable wooden I-shaped beam |
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| CN101487331A true CN101487331A (en) | 2009-07-22 |
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| CNA2009100251297A Pending CN101487331A (en) | 2009-02-24 | 2009-02-24 | High-strength durable wooden I-shaped beam |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105239752A (en) * | 2015-11-04 | 2016-01-13 | 沈阳建筑大学 | Reinforced energy consumption wood joist |
| CN106078944A (en) * | 2016-08-10 | 2016-11-09 | 梁贤录 | A kind of stage rough ground and preparation method thereof |
| CN103703196B (en) * | 2011-07-01 | 2018-01-30 | 乌尔玛Cye,S.公司 | Formwork structure component |
| CN109072613A (en) * | 2016-03-15 | 2018-12-21 | 安德鲁·桑顿 | Structural elements with pairs of flange and web |
| CN113700354A (en) * | 2021-08-21 | 2021-11-26 | 江苏耀中建设工程有限公司 | Assembled operating room |
-
2009
- 2009-02-24 CN CNA2009100251297A patent/CN101487331A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103703196B (en) * | 2011-07-01 | 2018-01-30 | 乌尔玛Cye,S.公司 | Formwork structure component |
| CN105239752A (en) * | 2015-11-04 | 2016-01-13 | 沈阳建筑大学 | Reinforced energy consumption wood joist |
| CN109072613A (en) * | 2016-03-15 | 2018-12-21 | 安德鲁·桑顿 | Structural elements with pairs of flange and web |
| CN109072613B (en) * | 2016-03-15 | 2022-07-01 | 安德鲁·桑顿 | Structural member with paired flanges and webs |
| CN106078944A (en) * | 2016-08-10 | 2016-11-09 | 梁贤录 | A kind of stage rough ground and preparation method thereof |
| CN113700354A (en) * | 2021-08-21 | 2021-11-26 | 江苏耀中建设工程有限公司 | Assembled operating room |
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