CN111236263A - Large-span regular splayed prestressed truss steel support - Google Patents
Large-span regular splayed prestressed truss steel support Download PDFInfo
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- CN111236263A CN111236263A CN202010198302.XA CN202010198302A CN111236263A CN 111236263 A CN111236263 A CN 111236263A CN 202010198302 A CN202010198302 A CN 202010198302A CN 111236263 A CN111236263 A CN 111236263A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- Mining & Mineral Resources (AREA)
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Abstract
The invention relates to the field of foundation pit supporting equipment, in particular to a large-span splayed prestressed truss steel support. The truss steel support comprises a middle support group, an end support group, a splayed support group, a pressurizing piece and a trapezoidal piece, wherein two ends of the middle support group are connected with the trapezoidal piece through the pressurizing piece respectively, two waists of the trapezoidal piece are fixed on a surrounding purlin through the splayed support group, and the upper bottom of the trapezoidal piece is fixed on the surrounding purlin through the end support group. The ladder-shaped supporting device takes ladder-shaped parts with two symmetrical ends of the middle supporting group as core connecting pieces, the upper bottom edges of the ladder-shaped parts are fixed on the enclosing purlin through the end supporting groups, and the two waists of the ladder-shaped parts are fixed on the enclosing purlin through the splayed supporting groups. The application can realize the disassembly and assembly combination and the repeated use, saves the cost and improves the convenience of transportation and the stability of the structure.
Description
Technical Field
The invention relates to the field of foundation pit supporting equipment, in particular to a large-span splayed prestressed truss steel support.
Background
At present, the concrete support is mainly adopted as the support technology of the foundation pit in China, and the support mechanism wastes resources, has high manufacturing cost and long construction period; the traditional steel support has poor reliability; the large-span fish-bellied steel support has large construction risk, poor reliability and easy occurrence of safety problems.
Disclosure of Invention
In order to solve the technical problems described in the background art, the invention provides a large-span splayed prestressed truss steel support. Trapezoidal pieces with two symmetrical ends of the middle support group are used as core connecting pieces, the upper bottom edges of the trapezoidal pieces are fixed on the enclosing purlin through the end support groups, and the two waists of the trapezoidal pieces are fixed on the enclosing purlin through the splayed support groups. The application can realize the disassembly and assembly combination and the repeated use, saves the cost and improves the convenience of transportation and the stability of the structure.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a big-span regular splayed bracing prestressing force truss steel shotcrete, includes well support group, end support group, splayed support group, pressure parts and trapezoidal piece, well support group both ends are in the same place through pressure parts and trapezoidal piece link together respectively, and two waists of trapezoidal piece are fixed on enclosing the purlin through splayed support group, and the last end of trapezoidal piece is fixed on enclosing the purlin through end support group.
Specifically, well support group and end support group constitute by sharp support piece, swash plate and riser, and several mutual parallel sharp support piece pass through the swash plate and the riser is fixed together, and riser and sharp support piece mutually perpendicular, swash plate and sharp support piece non-perpendicular and non-parallel.
Specifically, the quantity of swash plate is more than two, and the quantity of riser is more than two, and the interval between all risers is the same, and adjacent swash plate is mutual symmetry, and evenly distributed has several bolt hole group on riser and the swash plate, and every group bolt hole all has several bolt hole to constitute, and riser and swash plate all pass through bolt fixed connection on sharp support, and evenly distributed has several stiffening plate on the riser.
Specifically, the linear support piece is composed of a first rectangular web plate and a first rectangular outline plate, the first rectangular web plate is vertically fixed between the first rectangular outline plate which is parallel to each other, a plurality of bolt hole groups are uniformly distributed on the first rectangular outline plate, each bolt hole group is composed of a plurality of bolt holes, a plurality of stiffening plates which are parallel to each other are fixed between the first rectangular web plate and the first rectangular outline plate, first rectangular connecting plates are fixed at two ends of the linear support piece, and a plurality of bolt holes are formed in the first rectangular connecting plates.
Specifically, the splayed support group consists of two mutually symmetrical support groups, the structure of each support group is the same as that of the end support group, and the support groups forming the splayed support and the end support groups are non-parallel and non-vertical.
Specifically, the supporting group forming the splayed supporting group is fixed on the enclosing purlin through a triangular piece, the triangular piece is composed of a triangular frame body, a rectangular frame body and wedge-shaped blocks, the rectangular frame body is fixed on the bottom side of the triangular frame body, the wedge-shaped blocks are fixed on the waist side of the triangular frame body, stiffening plates are fixed in the triangular frame body and the rectangular frame body, a plurality of bolt hole groups are uniformly distributed on the triangular frame body, the rectangular frame body and the wedge-shaped blocks, and each bolt hole group is composed of a plurality of bolt holes.
Specifically, triangle spare and end support group fix on enclosing purlin basic member, enclose purlin basic member and fix on enclosing the purlin, enclose purlin basic member and comprise two rectangle web and two rectangle contour plate, two vertical fixation of rectangle web are between two rectangle contour plate two that are parallel to each other, evenly distributed has several bolt punch combination on the rectangle contour plate two, every bolt punch combination comprises the several bolt hole, be fixed with the stiffener that the several is parallel to each other between two rectangle web and the rectangle contour plate two, enclose purlin basic member both ends and be fixed with two rectangle connecting plates, be equipped with the several bolt hole on two rectangle connecting plates.
Specifically, the pressurizing piece comprises a cross beam and pressurizing blocks, the two parallel cross beams are fixedly connected together through a plurality of parallel pressurizing blocks, and the pressurizing blocks are metal rectangular blocks.
Specifically, the trapezoidal piece is fixed by two mutually symmetrical right-angle trapezoidal frames.
Specifically, the trapezoidal piece comprises two right angle trapezoidal pieces that are symmetrical each other, and the right angle trapezoidal piece comprises profile board one and trapezoidal web, and profile board one is fixed on the border of trapezoidal web, is fixed with several stiffener between profile board one and the trapezoidal web, and evenly distributed has several bolt hole group on the profile board one, and every bolt hole group comprises the several bolt hole.
In particular, the trapezoidal member is an integral trapezoidal frame.
The invention has the beneficial effects that: the invention provides a large-span splayed prestressed truss steel support. Trapezoidal pieces with two symmetrical ends of the middle support group are used as core connecting pieces, the upper bottom edges of the trapezoidal pieces are fixed on the enclosing purlin through the end support groups, and the two waists of the trapezoidal pieces are fixed on the enclosing purlin through the splayed support groups. The application can realize the disassembly and assembly combination and the repeated use, saves the cost and improves the convenience of transportation and the stability of the structure.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the middle support group of the present invention;
FIG. 3 is a schematic view of the configuration of the ladder of the present invention;
FIG. 4 is a schematic view of the construction of a right angle ladder of the present invention;
FIG. 5 is a schematic view of the construction of the triangle of the present invention;
FIG. 6 is a schematic view of the construction of the press of the present invention;
FIG. 7 is a schematic structural view of a linear support of the present invention;
FIG. 8 is a schematic structural view of a purlin foundation member of the present invention;
FIG. 9 is a schematic structural view of the present invention applied in a foundation pit;
in the figure, 1, a middle support group, 2, an end support group, 3, a splayed support group, 4, a pressure piece, 5, a ladder-shaped piece, 6, a triangular piece, 7, a surrounding purlin base piece, 11, a linear support piece, 12, an inclined plate, 13, a vertical plate, 41, a cross beam, 42, a pressure block, 51, a first outline plate, 52, a trapezoidal web plate, 61, a triangular frame body, 62, a rectangular frame body, 63, a wedge-shaped block, 71, a second rectangular web plate, 72, a second rectangular outline plate, 73, a second rectangular connecting plate, 111, a first rectangular web plate, 112, a first rectangular outline plate and 113 are arranged.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
Fig. 1 is a schematic structural view of the present invention, fig. 2 is a schematic structural view of a middle support group of the present invention, fig. 3 is a schematic structural view of a trapezoidal member of the present invention, fig. 4 is a schematic structural view of a right-angle trapezoidal member of the present invention, fig. 5 is a schematic structural view of a triangular member of the present invention, fig. 6 is a schematic structural view of a pressing member of the present invention, fig. 7 is a schematic structural view of a linear support member of the present invention, fig. 8 is a schematic structural view of a purlin base member of the present invention, and fig. 9 is a schematic structural view of the present invention applied to a foundation pit.
Referring to the attached drawings 1 and 9, the large-span regular splayed prestressed truss steel support comprises a middle support group 1, an end support group 2, a splayed support group 3, a pressurizing piece 4 and a trapezoidal piece 5, wherein two ends of the middle support group 1 are respectively connected with the trapezoidal piece 5 through the pressurizing piece 4, two waists of the trapezoidal piece 5 are fixed on a purlin through the splayed support group 3, and the upper bottom of the trapezoidal piece 5 is fixed on the purlin through the end support group 2.
The pressure member 4 is fixed between the trapezoidal member 5 and the middle support group 1, and can apply prestress to control the deformation of the foundation pit. The end support groups 2 and the splayed support groups 3 at the two ends of the middle support group 1 respectively prop against two opposite planes of the enclosing purlin, and the end support groups 2 are positioned between the splayed support groups 3.
As shown in fig. 2, each of the middle support group 1 and the end support group 2 comprises a linear support 11, a sloping plate 12 and a vertical plate 13, wherein a plurality of parallel linear supports 11 are fixed together by the sloping plate 12 and the vertical plate 13, the vertical plate 13 is perpendicular to the linear supports 11, and the sloping plate 12 is non-perpendicular and non-parallel to the linear supports 11.
The quantity of swash plate 12 is more than two, and the quantity of riser 13 is more than two, and the interval between all risers 13 is the same, and adjacent swash plate 12 is mutual symmetry, and evenly distributed has several bolt hole group on riser 13 and the swash plate 12, and every group bolt hole all has several bolt hole to constitute, and riser 13 all passes through bolt fixed connection with swash plate 12 on sharp support 11, and evenly distributed has several stiffener on riser 13. An inclined plate 12 is arranged between two adjacent vertical plates 13.
As shown in fig. 7, the linear support 11 is composed of a first rectangular web 111 and a first rectangular contour plate 112, the first rectangular web 111 is vertically fixed between the first rectangular contour plates 112 which are parallel to each other, a plurality of bolt hole groups are uniformly distributed on the first rectangular contour plate 112, each bolt hole group is composed of a plurality of bolt holes, a plurality of stiffening plates which are parallel to each other are fixed between the first rectangular web 111 and the first rectangular contour plate 112, first rectangular connecting plates 113 are fixed at two ends of the linear support 11, and a plurality of bolt holes are formed in the first rectangular connecting plates 113.
As shown in fig. 1, the splayed support group 3 is composed of two symmetrical support groups, the structure of the support group is the same as that of the end support group 2, and the support group composing the splayed support is non-parallel and non-perpendicular to the end support group 2.
With reference to fig. 1 and 5, the support group forming the splayed support group 3 is fixed on the purlin by a triangular part 6, the triangular part 6 is composed of a triangular frame body 61, a rectangular frame body 62 and a wedge block 63, the rectangular frame body 62 is fixed on the bottom side of the triangular frame body 61, the wedge block 63 is fixed on the waist side of the triangular frame body 61, stiffening plates are fixed in the triangular frame body 61 and the rectangular frame body 62, a plurality of bolt hole groups are uniformly distributed on the triangular frame body 61, the rectangular frame body 62 and the wedge block 63, and each bolt hole group is composed of a plurality of bolt holes.
The triangular part 6 may be integrally formed, or may be detachably and fixedly combined by a triangular frame body 61, a rectangular frame body 62 and a wedge block 63.
As shown in the attached drawing 8, the triangular piece 6 and the end support group 2 are fixedly connected to the enclosing purlin base piece 7 through bolts, the enclosing purlin base piece 7 is fixed to the enclosing purlin, the triangular piece 6 and the end support group 2 are fixed to the enclosing purlin base piece 7, the enclosing purlin base piece 7 is fixed to the enclosing purlin, the enclosing purlin base piece 7 is composed of two rectangular web plates 71 and two rectangular outline plates 72, the two rectangular web plates 71 are perpendicularly fixed between the two rectangular outline plates 72 which are parallel to each other, a plurality of bolt hole groups are uniformly distributed on the two rectangular outline plates 72, each bolt hole group is composed of a plurality of bolt holes, a plurality of stiffening plates which are parallel to each other are fixed between the two rectangular web plates 71 and the two rectangular outline plates 72, two rectangular connecting plates 73 are fixed to two ends of the enclosing purlin base piece 7, and a plurality of bolt holes are formed in the two rectangular connecting plates 73.
As shown in fig. 6, the pressing member 4 is composed of a cross beam 41 and pressing blocks 42, two parallel cross beams 41 are fixedly connected together through a plurality of parallel pressing blocks 42, and the pressing blocks 42 are metal rectangular blocks.
Referring to fig. 3 and 4, the trapezoidal member 5 is formed by fixing two mutually symmetrical right-angle trapezoidal members, each right-angle trapezoidal member is formed by a first contour plate 51 and a trapezoidal web 52, the first contour plate 51 is fixed on the edge of the trapezoidal web 52, a plurality of stiffening plates are fixed between the first contour plate 51 and the trapezoidal web 52, a plurality of bolt hole groups are uniformly distributed on the first contour plate 51, and each bolt hole group is formed by a plurality of bolt holes. The ladder 5 may also be an integral ladder frame.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. The utility model provides a big span regular splayed props prestressing force truss steel shotcrete, characterized by, including well support group (1), end support group (2), splayed support group (3), pressure member (4) and trapezoidal component (5), well support group (1) both ends are in the same place through pressure member (4) and trapezoidal component (5) link together respectively, and two waists of trapezoidal component (5) are fixed on enclosing the purlin through splayed support group (3), and the last end of trapezoidal component (5) is fixed on enclosing the purlin through end support group (2).
2. The large-span regular splayed prestressed truss steel bracing according to claim 1, characterized in that: well support group (1) and end support group (2) constitute by sharp support piece (11), swash plate (12) and riser (13), and several mutual parallel sharp support piece (11) are together fixed through swash plate (12) and riser (13), riser (13) and sharp support piece (11) mutually perpendicular, swash plate (12) and sharp support piece (11) non-perpendicular and non-parallel.
3. The large-span regular splayed prestressed truss steel support of claim 2, wherein: the quantity of swash plate (12) is more than two, and the quantity of riser (13) is more than two, and the interval between all riser (13) is the same, and adjacent swash plate (12) are mutual symmetry, and evenly distributed has several bolt hole group on riser (13) and swash plate (12), and every group bolt hole all has several bolt hole to form, and riser (13) and swash plate (12) are all through bolt fixed connection on sharp support piece (11), and evenly distributed has several stiffener on riser (13).
4. The large-span regular splayed prestressed truss steel support of claim 2, wherein: linear support piece (11) comprises rectangular web (111) and rectangular outline board (112), rectangular web (111) vertical fixation is between two rectangular outline boards (112) that are parallel to each other, evenly distributed has several bolt hole group on rectangular outline board (112), every bolt hole group comprises the several bolt hole, be fixed with the several stiffening plate that is parallel to each other between rectangular web (111) and rectangular outline board (112), linear support piece (11) both ends are fixed with rectangular connecting plate (113), be equipped with the several bolt hole on rectangular connecting plate (113).
5. The large-span regular splayed prestressed truss steel bracing according to claim 1, characterized in that: the splayed supporting group (3) is composed of two symmetrical supporting groups, the structure of the supporting group is the same as that of the end supporting group (2), and the supporting group and the end supporting group (2) which form the splayed support are not parallel and not vertical.
6. The large-span regular splayed prestressed truss steel support of claim 5, wherein: the support group who constitutes splayed support group (3) fixes on enclosing the purlin through triangle-shaped (6), triangle-shaped (6) are by triangle-shaped framework (61), rectangle framework (62) and wedge (63) are constituteed, the base in triangle-shaped framework (61) is fixed in rectangle framework (62), be fixed with wedge (63) on the waist limit of triangle-shaped framework (61), all be fixed with the stiffening plate in triangle-shaped framework (61) and rectangle framework (62), triangle-shaped framework (61), rectangle framework (62), all evenly distributed has several bolt hole groups on wedge (63), every bolt hole group comprises several bolt holes.
7. The large-span regular splayed prestressed truss steel bracing according to claim 6, characterized in that: triangle spare (6) and end support group (2) are fixed on enclosing purlin basic member (7), enclose purlin basic member (7) and fix on enclosing the purlin, enclose purlin basic member (7) and comprise rectangular web two (71) and rectangular outline board two (72), rectangular web two (71) vertical fixation is between two rectangular outline board two (72) that are parallel to each other, evenly distributed has several bolt hole group on rectangular outline board two (72), every bolt hole group comprises several bolt hole, be fixed with the stiffening plate that has several parallel to each other between rectangular web two (71) and the rectangular outline board two (72), it is fixed with rectangular connecting plate two (73) to enclose purlin basic member (7) both ends, be equipped with the several bolt hole on rectangular connecting plate two (73).
8. The large-span regular splayed prestressed truss steel bracing according to claim 1, characterized in that: the pressurizing piece (4) is composed of a cross beam (41) and pressurizing blocks (42), the two parallel cross beams (41) are fixedly connected together through a plurality of pressurizing blocks (42) which are parallel to each other, and the pressurizing blocks (42) are rectangular blocks.
9. The large-span regular splayed prestressed truss steel bracing according to claim 1, characterized in that: the trapezoidal piece (5) is fixed by two right angle trapezoidal pieces that are symmetrical to each other and is formed, and the right angle trapezoidal piece comprises profile board (51) and trapezoidal web (52), and profile board (51) are fixed on the border of trapezoidal web (52), are fixed with the several stiffener between profile board (51) and trapezoidal web (52), and evenly distributed has a plurality of bolt hole group on profile board (51), and every bolt hole group comprises a plurality of bolt holes.
10. The large-span regular splayed prestressed truss steel bracing according to claim 1, characterized in that: the trapezoidal member (5) is an integral trapezoidal frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010198302.XA CN111236263A (en) | 2020-03-19 | 2020-03-19 | Large-span regular splayed prestressed truss steel support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010198302.XA CN111236263A (en) | 2020-03-19 | 2020-03-19 | Large-span regular splayed prestressed truss steel support |
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| CN111236263A true CN111236263A (en) | 2020-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010198302.XA Withdrawn CN111236263A (en) | 2020-03-19 | 2020-03-19 | Large-span regular splayed prestressed truss steel support |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111549797A (en) * | 2020-06-11 | 2020-08-18 | 东通岩土科技股份有限公司 | Shaped steel supports compound eight characters system for deep basal pit |
| CN112900454A (en) * | 2021-04-01 | 2021-06-04 | 戴向胜 | Reinforced large-span splayed supporting system |
| CN113529748A (en) * | 2021-09-01 | 2021-10-22 | 戴向胜 | Servo bow string beam combined section steel support |
| CN113846645A (en) * | 2021-08-25 | 2021-12-28 | 东通岩土科技股份有限公司 | Foundation pit supporting structure utilizing steel side arch structure |
| CN113846644A (en) * | 2021-08-25 | 2021-12-28 | 东通岩土科技股份有限公司 | Foundation pit steel supporting structure utilizing haunch structure |
-
2020
- 2020-03-19 CN CN202010198302.XA patent/CN111236263A/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111549797A (en) * | 2020-06-11 | 2020-08-18 | 东通岩土科技股份有限公司 | Shaped steel supports compound eight characters system for deep basal pit |
| CN112900454A (en) * | 2021-04-01 | 2021-06-04 | 戴向胜 | Reinforced large-span splayed supporting system |
| CN113846645A (en) * | 2021-08-25 | 2021-12-28 | 东通岩土科技股份有限公司 | Foundation pit supporting structure utilizing steel side arch structure |
| CN113846644A (en) * | 2021-08-25 | 2021-12-28 | 东通岩土科技股份有限公司 | Foundation pit steel supporting structure utilizing haunch structure |
| CN113846645B (en) * | 2021-08-25 | 2022-12-16 | 东通岩土科技股份有限公司 | Foundation pit supporting structure utilizing steel side arch structure |
| US12054903B2 (en) | 2021-08-25 | 2024-08-06 | Dongtong Geotechnical Science and Technology Inc. | Structure for supporting foundation pit based on steel edge-arch structure |
| US12098512B2 (en) | 2021-08-25 | 2024-09-24 | Dongtong Geotechnical Science and Technology Inc. | Haunched structure-based steel support structure for foundation pit |
| CN113529748A (en) * | 2021-09-01 | 2021-10-22 | 戴向胜 | Servo bow string beam combined section steel support |
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Application publication date: 20200605 |