CN201507067U - Novel combined stone beam - Google Patents
Novel combined stone beam Download PDFInfo
- Publication number
- CN201507067U CN201507067U CN2009202194379U CN200920219437U CN201507067U CN 201507067 U CN201507067 U CN 201507067U CN 2009202194379 U CN2009202194379 U CN 2009202194379U CN 200920219437 U CN200920219437 U CN 200920219437U CN 201507067 U CN201507067 U CN 201507067U
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- stone
- stone beam
- groove
- novel combined
- beam body
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Abstract
The utility model discloses a novel combined stone beam, comprising a stone beam body; the tensile region of the stone beam is longitudinally provided with a groove along the stone beam body, and the groove is internally paved and provided with reinforcement material applied with a certain horizontal inherent stress; the reinforcement material is bonded and fixed in the groove through bonding material, and both ends of the reinforcement material are respectively tightly fixed at the both longitudinal ends of the stone beam body through anchor devices. Compared with the prior art, the cracking moment, the flexural rigidity and the bending bearing capacity are greatly improved by embedding high-strength tensile reinforcement material at the tensile region of the stone beam and applying inherent stress and anchoring. The novel combined stone beam can be applied to beam type stone structure components with longer length of span, has the advantages of wide width, high bearing capacity, no damage of stone structure scene and beauty, and the like, and can be popularized and applied in the reinforcement of new stone structure engineering and the existing stone structure.
Description
Technical field
The utility model relates to a kind of combined stone beam, can be applicable to the strengthening reconstruction of beam type stone bridge, stone structure building, porch and isostructural construction of decorated archway and existing stone beam in the civil engineering.
Background technology
Stone structure is one of the most ancient form of structure of China, is widely used in bridge and building structure.Granite structural meterials great advantage is the compressive strength height, good endurance, and have natural quality advantage attractive in appearance.Stone structure has a long history in China's civil engineering, and foremost ancient times, the stone structure building comprised the The Zhaozhou Bridge (arch-type structure) of Zhao County, Hebei province, the Song dynasty Luoyang Bridge (girder structure) in Quanzhou, Fujian and the thing double tower of Kaiyuan Temple, Quanzhou etc.China some areas, particularly Fujian South Fujian Province still continue to adopt stone material to build the house because granite is drawn materials conveniently in most of small towns.Also there is significant disadvantages in stone material, and is lower such as tensile strength, material is crisp and often have natural crack.Therefore, stone material is often used for compressed member on engineering is used, such as wall, post and arch etc.Though also have as flexural members such as beam slabs, higher because of the needs cross section, often seem too heavy, not only anti-bending bearing capacity is lower, and has the danger of bigger brittle fracture, thereby has limited the range of application of granite building material.
The utility model content
The purpose of this utility model provides a kind of novel combined stone beam that increases substantially cracking bearing capacity, anti-bending bearing capacity and bending rigidity.
The technical solution of the utility model is such: a kind of novel combined stone beam, comprise stone beam body, the tensile region of this stone beam body vertically offers groove along stone beam body, vertically be equipped with in this groove and applied prestressed muscle material, this muscle material is fixed in this groove by the binding material bonding, and the two ends of this muscle material are anchored on vertical two ends of above-mentioned stone beam body respectively by ground tackle.
Above-mentioned groove is square groove or the U-lag that size is about 2 times of the diameters of above-mentioned muscle material.
Above-mentioned muscle material is all higher carbon fibre bar of tensile strength and modulus of elasticity or high-strength steel steel strand.
Above-mentioned binding material is modified epoxy structure glue or the cement-based grout material with high-strength adhesion stress.
After adopting such scheme, compared with prior art, the utlity model has following advantage: (1) embeds the anti-bending bearing capacity that the muscle material can improve the stone beam greatly in the Shi Liang tensile region, improved the brittle fracture character of stone beam, thereby expanded the range of application of stone structure, made application become possibility than large span stone beam.(2) by in the muscle material, applying proper level prestressing force, increase substantially the cracking moment and the bending rigidity of stone beam, effectively improved the functional performance of combined stone beam.(3) effectively suppress the expansion in crack, stone beam curved scissors district, thereby improved the shear behavior of stone beam.(4) by the reasonable combination of material, the compressive strength of stone material and the tensile strength of muscle material are given full play to, realize the mutual supplement with each other's advantages of material.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A cut-away view of Fig. 1;
Fig. 3 is the B-B cut-away view of Fig. 2;
Fig. 4 is the C-C cut-away view of Fig. 2.
The specific embodiment
A kind of novel combined stone beam of the present utility model, as Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, comprise stone beam body, stone beam body is the complete granite beam 1 that meets the engineering physical dimension in the present embodiment, a side that is positioned at its tensile region 10 on the stone beam 1 vertically offers square groove 11 along stone beam 1, vertically be equipped with high-strength muscle material 3 in the square groove 11, high-strength muscle material 3 applies prestressing force by special-purpose tensioning equipment, high-strength muscle material 3 applies prestressed prestressing force level and calculates definite according to instructions for use, high-strength muscle material 3 is fixed in the square groove 11 by binding material 2 bondings, and the two ends of high-strength muscle material 3 are anchored in vertical two ends of Shi Liang 1 respectively by ground tackle 5, finally make Shi Liang 1, binding material 2 and high-strength muscle material 3 are combined into can stressed jointly combined stone beam.
Wherein, high-strength muscle material 3 can be used tensile strength and all higher carbon fibre bar or the high-strength steel steel strand of modulus of elasticity; The size of square groove 11 is about high-strength muscle material 3 diameters or thickness 2 times, and the size at vertical two ends of square groove 11 correspondingly strengthens according to the diameter of ground tackle 5, and binding material 2 can adopt high-strength binding materials such as modified epoxy structure glue or cement-based grout material; Ground tackle 5 is telescopic ground tackle or clipping ground tackle.
Novel combined stone beam of the present utility model, concrete constructure scheme is as follows:
(1), calculates diameter and the quantity of determining required muscle material 3 by anti-bending bearing capacity, to determine the size and the quantity of required plane cutter groove according to sectional dimension, the span of stone beam 1 with bear the load size.
(2), determine the level of stretch-draw prestressing force according to requirement of stone beam 1 control of crack width and amount of deflection control requirement.
(3) side that is positioned at its tensile region 10 on stone beam 1 is vertically dug the square groove 11 that the cutter size is about 2 times of muscle material 3 diameters along stone beam 1, and the size at vertical two ends of square groove 11 correspondingly strengthens according to the diameter of ground tackle 5;
(4) in square groove 11, lay muscle material 3, to the predetermined stress level, and the two ends of muscle material 3 are anchored in the stone beam end by ground tackle 5 by special-purpose tensioning equipment stretch-draw muscle material 3.
(5) paste U.S. line paper on square groove 11 limits to prevent that filling out filling binding material 2 pollutes stone materials.
(6) insert binding material 2 in square groove 11, the consumption of binding material 2 exceeds with the notch a little less than square groove 11, and the levelling glue face.For needs attractive in appearance, the glue face also can be lower than Shi Liang 1 surface, to form some recessed formula lines at the bottom of beam.
(7) tear U.S. line paper off, leave standstill to the design strength of binding material 2 and can lift use.
Claims (4)
1. novel combined stone beam, comprise stone beam body, it is characterized in that: the tensile region of this stone beam body vertically offers groove along stone beam body, vertically be equipped with in this groove and applied prestressed muscle material, this muscle material is fixed in this groove by the binding material bonding, and the two ends of this muscle material are anchored on vertical two ends of above-mentioned stone beam body respectively by ground tackle.
2. a kind of novel combined stone beam according to claim 1 is characterized in that: above-mentioned groove is square groove or the U-lag that size is about 2 times of the diameters of above-mentioned muscle material.
3. a kind of novel combined stone beam according to claim 1 is characterized in that: above-mentioned muscle material is all higher carbon fibre bar of tensile strength and modulus of elasticity or high-strength steel steel strand.
4. a kind of novel combined stone beam according to claim 1 is characterized in that: above-mentioned binding material is modified epoxy structure glue or the cement-based grout material with high-strength adhesion stress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202194379U CN201507067U (en) | 2009-10-13 | 2009-10-13 | Novel combined stone beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202194379U CN201507067U (en) | 2009-10-13 | 2009-10-13 | Novel combined stone beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201507067U true CN201507067U (en) | 2010-06-16 |
Family
ID=42468196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202194379U Expired - Fee Related CN201507067U (en) | 2009-10-13 | 2009-10-13 | Novel combined stone beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201507067U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101935979A (en) * | 2010-08-10 | 2011-01-05 | 武汉理工大学 | Plain pre-stressed concrete continuous beam bridge |
| CN104264593A (en) * | 2014-09-05 | 2015-01-07 | 华侨大学 | Surface embedded bar reinforced prestress tension method and device |
| CN114481868A (en) * | 2022-02-24 | 2022-05-13 | 广州大学 | Beam member prestress bending-resistant reinforcing structure and method |
-
2009
- 2009-10-13 CN CN2009202194379U patent/CN201507067U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101935979A (en) * | 2010-08-10 | 2011-01-05 | 武汉理工大学 | Plain pre-stressed concrete continuous beam bridge |
| CN104264593A (en) * | 2014-09-05 | 2015-01-07 | 华侨大学 | Surface embedded bar reinforced prestress tension method and device |
| CN114481868A (en) * | 2022-02-24 | 2022-05-13 | 广州大学 | Beam member prestress bending-resistant reinforcing structure and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100616 Termination date: 20121013 |