CN109112945B - Bamboo wood and steel combined box girder based on bolted connection - Google Patents

Bamboo wood and steel combined box girder based on bolted connection Download PDF

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Publication number
CN109112945B
CN109112945B CN201811210971.3A CN201811210971A CN109112945B CN 109112945 B CN109112945 B CN 109112945B CN 201811210971 A CN201811210971 A CN 201811210971A CN 109112945 B CN109112945 B CN 109112945B
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bamboo
kidney
shaped
holes
wood
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CN109112945A (en
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倪竣
徐升阳
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Suzhou Crownhomes Timber Structure Technology Co ltd
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Suzhou Crownhomes Timber Structure Technology Co ltd
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2/00Bridges characterised by the cross-section of their bearing spanning structure
    • E01D2/04Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W90/00Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
    • Y02W90/10Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Rod-Shaped Construction Members (AREA)

Abstract

The invention discloses a bamboo-wood and steel combined box girder based on bolt connection, and relates to the technical field of box girders. The invention comprises a top plate and a frame structure, wherein the frame structure comprises a wave-shaped steel plate, twenty bamboo-wood supporting beams and shearing steel sheets, the wave-shaped steel plate, the twenty bamboo-wood supporting beams and the shearing steel sheets are fixedly connected through sixty connecting components, and the wave-shaped steel plate comprises a bending part and a flat part. According to the invention, the cover plate can be fixed on one side of the bamboo-wood supporting beam through the matching use of the threaded rod, the kidney-shaped hole, the second through hole, the first through hole, the kidney-shaped block, the cover plate, the pin, the first positioning hole and the second positioning hole, and the waveform steel plate is fixed on the other side of the bamboo-wood supporting beam through the matching of the screw threads of the nut and the threaded rod, so that the waveform steel plate, the bamboo-wood supporting beam, the kidney-shaped block and the shearing steel sheet are tightly fixed together, and the problem of lower structural durability caused by insufficient prestress of the frame structure of the existing box beam is solved.

Description

Bamboo wood and steel combined box girder based on bolted connection
Technical Field
The invention belongs to the technical field of box girders, and particularly relates to a bamboo-wood and steel combined box girder based on bolt connection.
Background
The box girder is one of the middle girders of bridge engineering, the inside is hollow, flanges are arranged on two sides of the upper part, and similar boxes are arranged, so that the box girder is named as single box, multi-box and the like, the box girder of the reinforced concrete structure is divided into a prefabricated box girder and a cast-in-situ box girder, the box girder prefabricated in a separate place can be erected after the lower part engineering is completed by combining a bridge girder erection machine, the engineering progress can be accelerated, the construction period can be saved, and the cast-in-situ box girder is mostly used for large continuous bridges.
The traditional case roof beam adopts concrete to make, in order to guarantee the life of case roof beam, the inside reinforcing bar that adopts of case roof beam carries out prestressing force and handles, nevertheless weight is great, and the engineering volume is great, excessively consumes manpower and materials, has reduced installation effectiveness, and the cost is higher, and case roof beam structure is harder simultaneously, and prestressing force is not enough, can appear the web fracture and the problem that structural durability is not enough.
Disclosure of Invention
The invention aims to provide a bamboo-wood and steel combined box girder based on bolt connection, which can fix a cover plate on one side of a bamboo-wood supporting girder through the matching use of a threaded rod, a kidney-shaped hole, a second through hole, a first through hole, a kidney-shaped block, a cover plate, a pin column, a first positioning hole and a second positioning hole, and fix a waveform steel plate on the other side of the bamboo-wood supporting girder through the threaded matching of a nut and the threaded rod, so that the waveform steel plate, the bamboo-wood supporting girder, the kidney-shaped block and a shear steel plate are tightly fixed together, and the problem of lower structural durability caused by insufficient prestress of a frame structure of the traditional box girder is solved.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a bamboo-wood and steel combined box girder based on bolt connection, which comprises a top plate and a frame structure, wherein the frame structure comprises a corrugated steel plate, twenty bamboo-wood supporting girders and shearing steel plates, and the corrugated steel plate, the twenty bamboo-wood supporting girders and the shearing steel plates are fixedly connected through sixty connecting components;
the corrugated steel plate comprises a bending part and a flat part, three first through holes are formed in the bending part, and the first through holes are of threaded hole structures;
three second through holes are formed in one opposite side of the bamboo supporting beam, and the diameters of the first through holes and the second through holes are the same;
sixty kidney-shaped holes are formed in the shearing resistant steel sheet, and first positioning holes are formed in two sides of each kidney-shaped hole;
the connecting assembly comprises a threaded rod, one end of the threaded rod is fixedly provided with a kidney-shaped block, the kidney-shaped hole is in clearance fit with the kidney-shaped block, a rotating shaft is fixedly arranged on one surface of the kidney-shaped block, one end of the rotating shaft is fixedly provided with a cover plate, a group of second positioning holes are formed in the cover plate and the kidney-shaped block, and nuts are arranged on the threaded rod.
Further, the sum of the thicknesses of the waist-shaped blocks and the bamboo-wood supporting beams is the same as the distance between the bending part and the shearing-resistant steel sheet, and the sum of the thicknesses of the bamboo-wood supporting beams, the corrugated steel plate and the nuts is smaller than the length of the threaded rod, and the difference is in the range of 5-8 cm.
Further, a support steel frame is fixed between the two bamboo-wood support beams through bolts, and the cross section of the support steel frame is of an X-shaped structure.
Further, the distance between the axes of the two first positioning holes is the same as the distance between the axes of the two second positioning holes, and the cover plate is fixedly connected with the shear steel sheet through the first positioning holes, the second positioning holes and the positioning pins.
Further, the length of the rotating shaft is the same as the thickness of the shear steel sheet, and the diameter of the rotating shaft is the same as the inner diameter of the kidney-shaped hole.
Further, a concrete layer is fixed outside the frame structure, and reinforcing ribs are filled in the concrete layer.
The invention has the following beneficial effects:
according to the invention, one end of the threaded rod passes through the kidney-shaped hole, the second through hole and the first through hole, at the moment, the kidney-shaped block is positioned between the bamboo-wood supporting beam and the shear steel sheet, the kidney-shaped block and the kidney-shaped hole are in a vertical state by rotating the cover plate, the cover plate can be fixed on one side of the bamboo-wood supporting beam through the pin post, the first positioning hole and the second positioning hole, the corrugated steel plate is fixed on the other side of the bamboo-wood supporting beam through the threaded fit of the nut and the threaded rod, at the moment, the corrugated steel plate, the bamboo-wood supporting beam, the kidney-shaped block and the shear steel sheet are tightly fixed together, so that the fixing force is sufficient, the installation is convenient, the frame structure is made of a combined body of bamboo and steel, the weight of the box beam is reduced, the engineering quantity is reduced, the installation efficiency of the box beam is improved, the prestress is relatively sufficient, and the problems of web cracking and insufficient structural durability are avoided.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of a bamboo-wood and steel composite box girder based on bolting according to the present invention;
FIG. 2 is a schematic view of a frame structure and a connection assembly;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
fig. 4 is a schematic structural view of a bamboo-wood bracing beam;
FIG. 5 is a schematic structural view of a corrugated steel plate;
FIG. 6 is a partial enlarged view at B in FIG. 5;
FIG. 7 is a schematic view of the structure of a shear steel sheet;
FIG. 8 is an enlarged view of a portion of FIG. 7 at C;
FIG. 9 is a schematic structural view of a connection assembly;
FIG. 10 is a schematic view of a support steel frame;
in the drawings, the list of components represented by the various numbers is as follows:
the steel frame comprises a 1-top plate, a 2-frame structure, a 3-connecting assembly, a 201-wave-shaped steel plate, a 202-bamboo supporting beam, a 203-shearing steel sheet, a 204-first through hole, a 205-second through hole, a 206-kidney-shaped hole, a 207-first positioning hole, a 208-supporting steel frame, a 301-threaded rod, a 302-kidney-shaped block, a 303-rotating shaft, a 304-cover plate, a 305-second positioning hole, a 306-nut, a 2011-bending part and a 2012-straight part.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-10, the invention discloses a bamboo-wood and steel combined box girder based on bolt connection, which comprises a top plate 1 and a frame structure 2, wherein the frame structure 2 comprises a corrugated steel plate 201, twenty bamboo-wood supporting girders 202 and steel shearing resistant plates 203, and the corrugated steel plate 201, the twenty bamboo-wood supporting girders 202 and the steel shearing resistant plates 203 are fixedly connected through sixty connecting components 3;
the corrugated steel plate 201 comprises a bending part 2011 and a straight part 2012, wherein three first through holes 204 are formed in the bending part 2011, and the first through holes 204 are of a threaded hole structure;
three second through holes 205 are formed in one opposite side of the bamboo-wood bracing beam 202, and the diameters of the first through holes 204 and the second through holes 205 are the same;
sixty kidney-shaped holes 206 are formed in the shear steel sheet 203, and first positioning holes 207 are formed in two sides of the kidney-shaped holes 206;
the connecting assembly 3 comprises a threaded rod 301, one end of the threaded rod 301 is fixed with a kidney-shaped block 302, the kidney-shaped hole 206 is in clearance fit with the kidney-shaped block 302, a rotating shaft 303 is fixed on one surface of the kidney-shaped block 302, one end of the rotating shaft 303 is fixed with a cover plate 304, a group of second positioning holes 305 are formed in the cover plate 304 and the kidney-shaped block 302, and nuts 306 are arranged on the threaded rod 301.
Wherein as shown in fig. 3, the sum of thicknesses of the kidney-shaped block 302 and the bamboo-wood support beam 202 is the same as the distance between the bent portion 2011 and the shear steel sheet 203, and the sum of thicknesses of the bamboo-wood support beam 202, the corrugated steel plate 201 and the nut 306 is smaller than the length of the threaded rod 301 by a difference in the range of 5-8 cm.
As shown in fig. 2 and 10, a support steel frame 208 is fixed between the two bamboo-wood support beams 202 through bolts, and the cross section of the support steel frame 208 is in an X-shaped structure.
Wherein, the distance between the axes of the two first positioning holes 207 and the distance between the axes of the two second positioning holes 305 are the same, and the cover plate 304 is fixedly connected with the shear steel sheet 203 through the first positioning holes 207, the second positioning holes 305 and the positioning pins.
Wherein the length of the rotating shaft 303 is the same as the thickness of the shear steel sheet 203, and the diameter of the rotating shaft 303 is the same as the inner diameter of the kidney-shaped hole 206.
Wherein, the outside of the frame structure 2 is fixed with a concrete layer, and the concrete layer is filled with reinforcing steel bars.
One specific application of this embodiment is: when the frame structure 2 is installed, the bamboo-wood supporting beams 202 are placed, the supporting steel frames 208 are fixed between the two bamboo-wood supporting beams 202 by using bolts, the shear steel plates 203 are placed on one side of the bamboo-wood supporting beams 202, one end of the threaded rods 301 penetrate through the kidney-shaped holes 206, the second through holes 205 and the first through holes 204, the kidney-shaped blocks 302 penetrate through the kidney-shaped holes 206 and are positioned between the bamboo-wood supporting beams 202 and the shear steel plates 203, the cover plates 304 are rotated, the kidney-shaped blocks 302 are in a vertical state with the kidney-shaped holes 206, the first positioning holes 207 and the second positioning holes 305 are inserted by using pins, the cover plates 304 are fixed on the shear steel plates 203, the waveform steel plates 201 are fixed on the other side of the bamboo-wood supporting beams 202 by using nuts 306, and at the moment, the waveform steel plates 201, the bamboo-wood supporting beams 202, the kidney-shaped blocks and the shear steel plates 203 are tightly fixed together.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.

Claims (2)

1. The utility model provides a bamboo wood and steel combination case roof beam based on bolted connection, includes roof (1) and frame construction (2), its characterized in that: the frame structure (2) comprises a corrugated steel plate (201), a plurality of bamboo supporting beams (202) and shearing resistant steel sheets (203), wherein the corrugated steel plate (201), the plurality of bamboo supporting beams (202) and the shearing resistant steel sheets (203) are fixedly connected through a plurality of connecting components (3);
the corrugated steel plate (201) comprises a bending part (2011) and a flat part (2012), wherein a plurality of first through holes (204) are formed in the bending part (2011), and the first through holes (204) are of threaded hole structures;
the bamboo-wood bracing beam (202) is of a U-shaped opening frame structure, a plurality of second through holes (205) are formed in one opposite side, and the diameters of the first through holes (204) and the second through holes (205) are the same;
a plurality of kidney-shaped holes (206) are formed in the shearing resistant steel sheet (203), and first positioning holes (207) are formed in two sides of each kidney-shaped hole (206);
the connecting assembly (3) comprises a threaded rod (301), one end of the threaded rod (301) is fixedly provided with a kidney-shaped block (302), the kidney-shaped hole (206) is in clearance fit with the kidney-shaped block (302), a rotating shaft (303) is fixedly arranged on one surface of the kidney-shaped block (302), one end of the rotating shaft (303) is fixedly provided with a cover plate (304), a group of second positioning holes (305) are formed in the cover plate (304) and the kidney-shaped block (302), and nuts (306) are arranged on the threaded rod (301);
the sum of the thicknesses of the waist-shaped blocks (302) and the bamboo-wood supporting beams (202) is the same as the distance between the bending part (2011) and the shearing resistant steel sheet (203), and the sum of the thicknesses of the bamboo-wood supporting beams (202), the corrugated steel plates (201) and the nuts (306) is smaller than the length of the threaded rods (301), and the difference is in the range of 5-8 cm;
a supporting steel frame (208) is fixed between the two bamboo-wood supporting beams (202) through bolts, and the cross section of the supporting steel frame (208) is of an X-shaped structure;
the distance between the axes of the two first positioning holes (207) is the same as the distance between the axes of the two second positioning holes (305), and the cover plate (304) is fixedly connected with the shear steel sheet (203) through the first positioning holes (207), the second positioning holes (305) and the positioning pins;
the length of the rotating shaft (303) is the same as the thickness of the shear steel sheet (203), and the diameter of the rotating shaft (303) is the same as the inner diameter of the kidney-shaped hole (206); when the frame structure (2) is installed, the bamboo-wood supporting beams (202) are placed, the supporting steel frames (208) are fixed between the two bamboo-wood supporting beams (202) by using bolts, the shearing-resistant steel plates (203) are placed on one side of the bamboo-wood supporting beams (202), one end of the threaded rod (301) penetrates through the kidney-shaped holes (206), the second through holes (205) and the first through holes (204), the kidney-shaped blocks (302) penetrate through the kidney-shaped holes (206) and are positioned between the bamboo-wood supporting beams (202) and the shearing-resistant steel plates (203), the cover plates (304) are rotated, the kidney-shaped blocks (302) and the kidney-shaped holes (206) are in a vertical state, the first positioning holes (207) and the second positioning holes (305) are inserted by using pins, the cover plates (304) are fixed on the shearing-resistant steel plates (203), the waveform steel plates (201) are fixed on the other side of the bamboo-wood supporting beams (202) by using nuts (306), and at the moment, the kidney-shaped blocks (202), the kidney-shaped blocks and the shearing-resistant steel plates (203) are tightly fixed together.
2. A bamboo and steel composite box girder based on bolting according to claim 1, characterized in that the frame structure (2) is externally fixed with a concrete layer filled with reinforcing bars.
CN201811210971.3A 2018-10-17 2018-10-17 Bamboo wood and steel combined box girder based on bolted connection Active CN109112945B (en)

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CN109162348A (en) * 2018-10-17 2019-01-08 苏州昆仑绿建木结构科技股份有限公司 A kind of assembled bamboo hollow frame structure with prestressing force enhancing box beam
CN110861117B (en) * 2019-10-24 2024-01-19 石泉县博达盛昌新型材料制造有限公司 Industrial mechanical arm for production line
CN111236091B (en) * 2020-01-21 2021-07-06 滁州职业技术学院 Concrete lining reinforcing structure of corrugated steel web box girder bridge

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