CN113756442A - Installation method of super-large-span steel structure planar truss - Google Patents
Installation method of super-large-span steel structure planar truss Download PDFInfo
- Publication number
- CN113756442A CN113756442A CN202111101430.9A CN202111101430A CN113756442A CN 113756442 A CN113756442 A CN 113756442A CN 202111101430 A CN202111101430 A CN 202111101430A CN 113756442 A CN113756442 A CN 113756442A
- Authority
- CN
- China
- Prior art keywords
- frame
- steel wire
- plates
- wire rope
- adjusting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 53
- 239000010959 steel Substances 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000009434 installation Methods 0.000 title claims abstract description 17
- 238000010276 construction Methods 0.000 claims description 15
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000010923 batch production Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/342—Structures covering a large free area, whether open-sided or not, e.g. hangars, halls
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C3/10—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal prestressed
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses an installation method of a super-large span steel structure plane truss, which is characterized in that a prefabricated component is used for hoisting on site, and a steel wire rope replaces a part of truss, so that the installation efficiency is greatly improved, and the requirement of super-large span can be met; mounting a flange structure at a span folding joint, connecting two halves of spans together through bolts after the spans are hoisted in place, connecting movable mounting seats through flange connecting plates at two ends of the spans, and connecting and fixing the movable mounting seats and lug plate structures on foundation bolts of the concrete ground piles through the movable mounting seats; the upper sides of the span frame and the longitudinal connecting frame are connected through diagonal draw bars, connecting lugs of the diagonal draw bars are arranged at corresponding positions of the span frame and the longitudinal connecting frame, and the diagonal draw bars are connected with the connecting lugs through bolts; the flexible steel wire rope structure is used for connecting the lower sides of the span frame and the longitudinal connecting frame, and the prestress of the flexible steel wire rope structure is adjusted through the wire tightener; and repeating the third, fourth, fifth and sixth actions until the installation is finished.
Description
Technical Field
The invention discloses a method for installing an ultra-large span steel structure plane truss, and belongs to the technical field of steel structure plane trusses.
Background
Along with the application scenes of the truss structure are wider and wider, the span of the truss is also larger and larger, so that the construction process is more and more difficult, the requirement of the super-large span is hardly met by the traditional construction mode, and even if the construction mode can be realized, the installation process is more and more careless.
Disclosure of Invention
The invention overcomes the defects in the prior art, and provides the installation method of the super-large span steel structure plane truss.
In order to solve the technical problems, the invention adopts the technical scheme that: a method for installing a super-large span steel structure plane truss is implemented according to the following steps:
the first step is as follows: pouring concrete ground piles according to the actual positions of the construction sites, pouring four foundation bolts in the concrete ground piles, measuring the actual heights of foundation bolt bottom plates, adjusting the foundation bolt bottom plates to be in place, and performing secondary pouring and edge sealing on the foundation bolt bottom plates;
the second step is that: carrying out fixed-size and fixed-angle production on a structural member related to the ultra-large span steel structure in a factory through a mould, transporting the produced structural member to a construction site, and loading prestress on the flexible steel wire rope structure in the factory;
the third step: assembling the straddles on the ground of a construction site on site, assembling the two ends of the straddles separately, hoisting and folding after the assembling is finished, mounting a flange structure at a folding joint, connecting the two straddles together through bolts after the straddles are hoisted in place, connecting the movable mounting seats through flange connecting plates at the two ends of the straddles, and connecting and fixing the movable mounting seats and the lug plate structures on foundation bolts of the concrete ground piles through the movable mounting seats;
the fourth step: after 2-3 spans are installed, the installed spans are longitudinally and fixedly connected through a longitudinal connecting frame assembled on a construction site;
the fifth step: the upper sides of the span frame and the longitudinal connecting frame are connected through diagonal draw bars, connecting lugs of the diagonal draw bars are arranged at corresponding positions of the span frame and the longitudinal connecting frame, and the diagonal draw bars are connected with the connecting lugs through bolts;
and a sixth step: the flexible steel wire rope structure is used for connecting the lower sides of the span frame and the longitudinal connecting frame, and the prestress of the flexible steel wire rope structure is adjusted through the wire tightener;
the seventh step: and repeating the third, fourth, fifth and sixth actions until the installation is finished.
The straddle comprises an upper chord, a lower chord, a zero member, web members and web connecting plates, wherein the upper chord and the lower chord are arranged in parallel, the upper chord is positioned right above the lower chord, the upper chord and the lower chord are fixedly connected through a plurality of web members or web members which are arranged obliquely or vertically, the corresponding two ends of the upper chord and the lower chord are fixedly connected through the zero member, the flange connecting plates are fixedly arranged at the two ends of the upper chord and the lower chord, movable mounting seats are fixedly connected on the flange connecting plates, and the movable mounting seats are fixedly connected on foundation bolts of the concrete ground piles through lug plate structures;
the longitudinal connecting frames are perpendicular to the spanning frame, a plurality of longitudinal connecting frames are arranged at equal intervals and matched with the spanning frame to form a double-layer square grid structure, the structure of each longitudinal connecting frame is similar to that of the spanning frame, the upper rods and the lower rods of each longitudinal connecting frame are straight rods, the two ends of each upper rod and the two ends of each lower rod are fixedly connected with the upper chord and the lower chord of the spanning frame, and zero rods and web members are also arranged between the upper rods and the lower rods;
the upper sides of the square grid structures are connected through crossed diagonal draw bars, and the lower sides of the square grid structures are connected together through crossed flexible steel wire rope structures.
The flexible steel wire rope structure comprises a flexible steel wire rope, flexible steel wire rope fixing ends, a wire tightener and flexible supporting connecting plates, the flexible supporting connecting plates are fixed on adjacent main components, the flexible steel wire rope fixing ends are arranged at the two ends of the flexible steel wire rope, the flexible supporting connecting plates at the two ends of the flexible steel wire rope are respectively fixed on the adjacent main components, the wire tightener is arranged on the flexible steel wire rope, and the tension between the adjacent main components is adjusted through the wire tightener.
The otic placode structure is including adjusting locating plate and otic placode, it is platelike structure to adjust the locating plate, the horizontal symmetry in both sides of adjusting the locating plate is provided with the regulation locating hole, the regulation locating hole is half open-ended slot hole structure, it is used for adapting to the installation angle who adjusts the locating plate with the correction to adjust the locating plate to adjust the locating hole, the vertical symmetry of otic placode sets up on adjusting the locating plate, just the otic placode perpendicular to is adjusted the locating plate and is located between the regulation locating hole of adjusting the locating plate both sides, all transversely be provided with the otic placode hole on adjusting the locating plate, two through the movable mounting seat swing joint of cartridge round pin axle and truss bottom in the otic placode hole together, make movable mounting seat can rotate the different installation angle of adaptation truss around the round pin axle.
And reinforcing rib plates are transversely arranged between the two ear plates and on the adjusting positioning plates at the outer sides of the ear plates.
The highest point of the ear plate is provided with a groove used as a positioning mark, and the groove is used for positioning and adjusting the relative height of the positioning plate.
Compared with the prior art, the invention has the following beneficial effects.
1. When the prestress between the main components changes, the flexible steel wire rope can be adjusted through the wire grip, the prestress between the main components is corrected, the adjusting process is simple, the working efficiency is greatly improved, the stress adjusting result can be visually seen through the tension meter, and the adjustment is accurate.
2. According to the invention, the adjusting positioning hole on the adjusting positioning plate is provided with the long-hole structure, so that when the foundation bolt on the concrete pile deviates, the adjusting positioning plate can be rotated or moved, the installation of the adjusting positioning plate is not influenced, the reinforcing rib plates support the lug plates from two sides, the structural strength of the lug plates is improved, the groove of the positioning mark is arranged on the top of the lug plate, the subsequent positioning through a tool is facilitated, and the azimuth angle and the relative height of the adjusting positioning plate are confirmed.
3. The straddle disclosed by the invention adopts a double-layer structure, so that ground assembly and batch production are facilitated, the mounting efficiency is improved, and the mounting risk is reduced.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the ear plate structure of the present invention.
Fig. 3 is a top sectional view of the ear plate structure of the present invention.
Fig. 4 is a schematic view of the structure of a flexible steel cord according to the invention.
FIG. 5 is a schematic structural view of the straddle of the present invention.
In the figure: the structure comprises a span frame 1, an upper chord 11, a lower chord 12, a zero rod 13, a web member 14, a flange connecting plate 15, a longitudinal connecting frame 2, a diagonal draw bar 3, a flexible steel wire rope structure 4, a flexible steel wire rope 41, a flexible steel wire rope fixed end 42, a wire tightener 43, a flexible supporting connecting plate 44, a main component 45, a movable mounting seat 5, an ear plate structure 6, an adjusting positioning plate 61, an ear plate 62, an adjusting positioning hole 63, an ear plate hole 64, a pin shaft 65, a reinforcing rib plate 67 and a groove 68.
Detailed Description
As shown in fig. 1 to 5, the installation method of the super-large span steel structure plane truss of the invention is implemented according to the following steps:
the first step is as follows: pouring concrete ground piles according to the actual positions of the construction sites, pouring four foundation bolts in the concrete ground piles, measuring the actual heights of foundation bolt bottom plates, adjusting the foundation bolt bottom plates to be in place, and performing secondary pouring and edge sealing on the foundation bolt bottom plates;
the second step is that: the method comprises the following steps of performing fixed-size and fixed-angle production on a structural part related to the ultra-large span steel structure in a factory through a mould, transporting the produced structural part to a construction site, and loading prestress on a flexible steel wire rope structure 4 in the factory;
the third step: assembling the straddle 1 on the ground of a construction site on site, assembling two ends of the straddle 1 separately, hoisting and folding after the assembling is finished, mounting a flange structure at a joint, connecting two halves of the straddle 1 together through bolts after the hoisting is completed in place, then connecting the two halves of the straddle 1 with movable mounting seats 5 through flange connecting plates 15 at two ends of the straddle 1, and connecting and fixing the two halves of the straddle with lug plate structures 6 through the movable mounting seats 5 on foundation bolts of the concrete ground piles;
the fourth step: after 2-3 spans 1 are installed, the installed spans 1 are longitudinally and fixedly connected through a longitudinal connecting frame 2 assembled on a construction site;
the fifth step: the upper sides of the span frame 1 and the longitudinal connecting frame 2 are connected through the diagonal draw bar 3, connecting lugs of the diagonal draw bar 3 are arranged at corresponding positions of the span frame 1 and the longitudinal connecting frame 2, and the diagonal draw bar 3 is connected with the connecting lugs through bolts;
and a sixth step: the lower sides of the span frame 1 and the longitudinal connecting frame 2 are connected through the flexible steel wire rope structure 4, and the prestress of the flexible steel wire rope structure 4 is adjusted through the tightener 43;
the seventh step: and repeating the third, fourth, fifth and sixth actions until the installation is finished.
The straddle 1 comprises an upper chord 11, a lower chord 12, a zero member 13, web members 14 and flange connecting plates 15, wherein the upper chord 11 and the lower chord 12 are arranged in parallel, the upper chord 11 is positioned right above the lower chord 12, the upper chord 11 and the lower chord 12 are fixedly connected through a plurality of web members 14 or web members 14 which are arranged in an inclined manner or vertically, corresponding two ends of the upper chord 11 and the lower chord 12 are fixedly connected through the zero member 13, the two ends of the upper chord 11 and the lower chord 12 are fixedly provided with the flange connecting plates 15, the flange connecting plates 15 are fixedly connected with movable mounting seats 5, and the movable mounting seats 5 are fixedly connected on foundation bolts of concrete ground piles through lug plate structures 6;
the longitudinal connecting frames 2 are perpendicular to the spanning frame 1, the plurality of longitudinal connecting frames 2 are arranged at equal intervals and matched with the spanning frame 1 to form a double-layer square grid structure, the structure of the longitudinal connecting frames 2 is similar to that of the spanning frame 1, the upper rods and the lower rods of the longitudinal connecting frames 2 are straight rods, the two ends of the upper rods and the two ends of the lower rods are fixedly connected with the upper chord 11 and the lower chord 12 of the spanning frame 1, and the zero rods 13 and the web members 14 are also arranged between the upper rods and the lower rods;
the upper sides of the square grid structures are connected through crossed diagonal draw bars 3, and the lower sides of the square grid structures are connected together through crossed flexible steel wire rope structures 4.
Flexible wire rope structure 4 includes flexible wire rope 41, flexible wire rope stiff end 42, turn-buckle 43 and flexible support connecting plate 44, flexible support connecting plate 44 is fixed on adjacent principal component 45, flexible wire rope 41's both ends all are provided with flexible wire rope stiff end 42, the flexible wire rope stiff end 42 at flexible wire rope 41 both ends is fixed respectively at the flexible support connecting plate 44 on adjacent principal component 45, be provided with turn-buckle 43 on the flexible wire rope 41, through tension between the adjacent principal component 45 of turn-buckle 43 adjustment.
Reinforcing ribs 67 are transversely arranged between the two ear plates 62 and on the adjusting and positioning plate 61 at the outer side of the ear plates 62.
The highest point of the ear plate 2 is provided with a groove 8 used as a positioning mark, and the groove 8 is used for positioning and adjusting the relative height of the positioning plate 1.
When the prestress between the main components changes, the flexible steel wire rope can be adjusted through the wire grip, the prestress between the main components is corrected, the adjusting process is simple, the working efficiency is greatly improved, the stress adjusting result can be visually seen through the tension meter, and the adjustment is accurate.
According to the invention, the adjusting positioning hole on the adjusting positioning plate is provided with the long-hole structure, so that when the foundation bolt on the concrete pile deviates, the adjusting positioning plate can be rotated or moved, the installation of the adjusting positioning plate is not influenced, the reinforcing rib plates support the lug plates from two sides, the structural strength of the lug plates is improved, the groove of the positioning mark is arranged on the top of the lug plate, the subsequent positioning through a tool is facilitated, and the azimuth angle and the relative height of the adjusting positioning plate are confirmed.
The straddle disclosed by the invention adopts a double-layer structure, so that ground assembly and batch production are facilitated, the mounting efficiency is improved, and the mounting risk is reduced.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (6)
1. The method for installing the super-large span steel structure plane truss is characterized by comprising the following steps of:
the first step is as follows: pouring concrete ground piles according to the actual positions of the construction sites, pouring four foundation bolts in the concrete ground piles, measuring the actual heights of foundation bolt bottom plates, adjusting the foundation bolt bottom plates to be in place, and performing secondary pouring and edge sealing on the foundation bolt bottom plates;
the second step is that: the method comprises the following steps of performing fixed-size and fixed-angle production on a structural member related to the ultra-large span steel structure in a factory through a mould, conveying the produced structural member to a construction site, and loading prestress on a flexible steel wire rope structure (4) in the factory;
the third step: assembling the spanning frame (1) on the ground of a construction site on site, assembling two ends of the spanning frame (1) separately, hoisting and folding after assembling, mounting a flange structure at a folding interface, connecting two half spanning frames (1) together through bolts after hoisting is completed in place, then connecting the two half spanning frames through flange connecting plates (15) at two ends of the spanning frame (1) with movable mounting seats (5), and connecting and fixing the two half spanning frames with lug plate structures (6) on foundation bolts of concrete ground piles through the movable mounting seats (5);
the fourth step: after 2-3 spanning frames (1) are installed, the installed spanning frames (1) are longitudinally and fixedly connected through a longitudinal connecting frame (2) assembled on a construction site;
the fifth step: the upper sides of the span frame (1) and the longitudinal connecting frame (2) are connected through the diagonal draw bar (3), connecting lugs of the diagonal draw bar (3) are arranged at corresponding positions of the span frame (1) and the longitudinal connecting frame (2), and the diagonal draw bar (3) is connected with the connecting lugs through bolts;
and a sixth step: the lower sides of the straddle frame (1) and the longitudinal connecting frame (2) are connected through the flexible steel wire rope structure (4), and the prestress of the flexible steel wire rope structure (4) is adjusted through the tightener (43);
the seventh step: and repeating the third, fourth, fifth and sixth actions until the installation is finished.
2. The method for mounting the super-large span steel structure planar truss according to claim 1, wherein the span (1) comprises an upper chord (11), a lower chord (12), a zero member (13), web members (14) and flange connecting plates (15), the upper chord (11) and the lower chord (12) are arranged in parallel, the upper chord (11) is located right above the lower chord (12), the upper chord (11) and the lower chord (12) are fixedly connected through a plurality of or obliquely arranged web members (14) or vertically arranged web members (14), corresponding two ends of the upper chord (11) and the lower chord (12) are fixedly connected through the zero member (13), the two ends of the upper chord (11) and the lower chord (12) are fixedly provided with the flange connecting plates (15), and the flange connecting plates (15) are fixedly connected with the movable mounting seats (5), the movable mounting base (5) is fixedly connected to a foundation bolt of the concrete ground pile through an ear plate structure (6);
the vertical connecting frames (2) are perpendicular to the spanning frame (1), the plurality of vertical connecting frames (2) are arranged at equal intervals and matched with the spanning frame (1) to form a double-layer square grid structure, the structure of the vertical connecting frames (2) is similar to that of the spanning frame (1), the upper rods and the lower rods of the vertical connecting frames (2) are straight rods, the two ends of the upper rods and the lower rods are fixedly connected with the upper chord (11) and the lower chord (12) of the spanning frame (1), and zero rods (13) and web members (14) are also arranged between the upper rods and the lower rods;
the upper sides of the square grid structures are connected through crossed diagonal draw bars (3), and the lower sides of the square grid structures are connected together through crossed flexible steel wire rope structures (4).
3. The installation method of the super-large span steel structure planar truss according to claim 1, wherein the flexible steel wire rope structure (4) comprises flexible steel wire ropes (41), flexible steel wire rope fixing ends (42), wire tighteners (43) and flexible support connecting plates (44), the flexible support connecting plates (44) are fixed on adjacent main members (45), the flexible steel wire rope fixing ends (42) are arranged at both ends of the flexible steel wire ropes (41), the flexible steel wire rope fixing ends (42) at both ends of the flexible steel wire ropes (41) are respectively fixed on the flexible support connecting plates (44) on the adjacent main members (45), the wire tighteners (43) are arranged on the flexible steel wire ropes (41), and tension between the adjacent main members (45) is adjusted through the wire tighteners (43).
4. The mounting method of the super-large span steel structure plane truss as recited in claim 1, wherein the ear plate structure (6) comprises an adjusting positioning plate (61) and ear plates (62), the adjusting positioning plate (61) is a plate-shaped structure, adjusting positioning holes (63) are symmetrically arranged on two sides of the adjusting positioning plate (61) in the transverse direction, the adjusting positioning holes (63) are half-open slot hole structures, the adjusting positioning holes (63) are used for adjusting and correcting the mounting angle of the adjusting positioning plate (61), the ear plates (62) are symmetrically arranged on the adjusting positioning plate (61) in the longitudinal direction, the ear plates (62) are perpendicular to the adjusting positioning plate (61) and located between the adjusting positioning holes (63) on two sides of the adjusting positioning plate (61), ear plate holes (64) are transversely arranged on the adjusting positioning plate (61), and two ear plates (62) are movably arranged at the bottom of the truss through pin shafts (65) on the ear plate holes (64) The mounting seats (5) are movably connected together, so that the movable mounting seats (5) can rotate around the pin shafts (65) to adapt to different mounting angles of the truss.
5. The method for installing the super-span steel structure planar truss according to claim 1, wherein reinforcing ribs (67) are transversely arranged between the two lug plates (62) and on the adjusting and positioning plate (61) at the outer sides of the lug plates (62).
6. The method for installing the super-span steel structure planar truss according to claim 1, wherein a groove (8) used as a positioning mark is arranged on the highest point of the lug plate (2), and the groove (8) is used for positioning and adjusting the relative height of the positioning plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111101430.9A CN113756442A (en) | 2021-09-18 | 2021-09-18 | Installation method of super-large-span steel structure planar truss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111101430.9A CN113756442A (en) | 2021-09-18 | 2021-09-18 | Installation method of super-large-span steel structure planar truss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113756442A true CN113756442A (en) | 2021-12-07 |
Family
ID=78796486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111101430.9A Pending CN113756442A (en) | 2021-09-18 | 2021-09-18 | Installation method of super-large-span steel structure planar truss |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113756442A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4569501A (en) * | 1984-05-29 | 1986-02-11 | Economy Forms Corporation | Cambered truss header for a shoring structure |
| CN103334527A (en) * | 2013-07-06 | 2013-10-02 | 杭州恒达钢构股份有限公司 | Steel structure cast-in-site floor arching construction method |
| CN103758044A (en) * | 2014-02-13 | 2014-04-30 | 腾达建设集团股份有限公司 | Arch rib closure method and arch rib closure control method based on unstressed state method |
| CN105625578A (en) * | 2016-02-05 | 2016-06-01 | 中国航空规划设计研究总院有限公司 | Giant pre-stressed string structure suitable for enclosing super-long-span coal yard and construction method |
| CN207018362U (en) * | 2017-06-12 | 2018-02-16 | 上海宝冶集团有限公司 | The Quick locating structure of plain radial bearing installation |
-
2021
- 2021-09-18 CN CN202111101430.9A patent/CN113756442A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4569501A (en) * | 1984-05-29 | 1986-02-11 | Economy Forms Corporation | Cambered truss header for a shoring structure |
| CN103334527A (en) * | 2013-07-06 | 2013-10-02 | 杭州恒达钢构股份有限公司 | Steel structure cast-in-site floor arching construction method |
| CN103758044A (en) * | 2014-02-13 | 2014-04-30 | 腾达建设集团股份有限公司 | Arch rib closure method and arch rib closure control method based on unstressed state method |
| CN105625578A (en) * | 2016-02-05 | 2016-06-01 | 中国航空规划设计研究总院有限公司 | Giant pre-stressed string structure suitable for enclosing super-long-span coal yard and construction method |
| CN207018362U (en) * | 2017-06-12 | 2018-02-16 | 上海宝冶集团有限公司 | The Quick locating structure of plain radial bearing installation |
Non-Patent Citations (1)
| Title |
|---|
| 陈炎光等: "中国煤矿巷道围岩控制", vol. 1, 31 May 1994, 中国矿业大学出版社, pages: 321 - 322 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103669967B (en) | Mix tower structure and the method for building the mixing tower structure | |
| JP7130029B2 (en) | Support structure for wind turbines | |
| US20180003158A1 (en) | Wind turbine tower | |
| CN112654748A (en) | Foundation for a wind power installation | |
| CN104831632A (en) | Upper transverse beam and lower transverse beam construction method for bridge cable bent tower | |
| CN207159827U (en) | No. 1 plate installation and positioning structure in No. 0 block of Wavelike steel webplate bridge | |
| CN111663457A (en) | Assembly module, modular construction platform and method and bridge abutment construction method | |
| CN109702387B (en) | Method for manufacturing steel structure of tower column lining of cable-stayed bridge | |
| CN111593666A (en) | Bent cap hoop mounting platform and integral beam hoop mounting process | |
| CN111827483B (en) | Construction method for roof curved surface # -shaped combined steel truss girder | |
| CN113756442A (en) | Installation method of super-large-span steel structure planar truss | |
| CN215858230U (en) | Steel structure plane truss of super large span | |
| CN107326812A (en) | No. 1 plate installation and positioning structure and operating method in No. 0 block of Wavelike steel webplate bridge | |
| CN113846572B (en) | Holding system for bridge capping beam construction and construction method | |
| CN205933000U (en) | Super high-rise external hanging movable arm tower crane climbing supporting device | |
| CN210127028U (en) | Gantry crane end well track beam and gantry crane end well track mounting assembly | |
| CN212270700U (en) | Bent cap staple bolt mounting platform | |
| CN110886228A (en) | Cable tower box type steel anchor beam and construction method | |
| CN113524386A (en) | Steel bench for precast beam construction and precast beam construction method | |
| CN111576348A (en) | Aqueduct formwork system supported on Bailey beam and construction method | |
| CN110219241A (en) | A kind of folding method of And of Varying Depth steel truss girder | |
| CN102966244A (en) | Process for connection among steel structure workshop roof truss, brackets and columns | |
| CN113059317B (en) | Manufacturing method of integral node type box-type rod piece of steel truss arch bridge | |
| CN212452315U (en) | Assembly module and modular construction platform | |
| CN215946565U (en) | Internal climbing tower crane support frame |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |