CN111827678A - Method for hoisting truss steel structure at top of silo - Google Patents
Method for hoisting truss steel structure at top of silo Download PDFInfo
- Publication number
- CN111827678A CN111827678A CN202010584094.7A CN202010584094A CN111827678A CN 111827678 A CN111827678 A CN 111827678A CN 202010584094 A CN202010584094 A CN 202010584094A CN 111827678 A CN111827678 A CN 111827678A
- Authority
- CN
- China
- Prior art keywords
- silo
- hoisting
- truss
- steel structure
- lower chord
- 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
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H7/00—Construction or assembling of bulk storage containers employing civil engineering techniques in situ or off the site
- E04H7/22—Containers for fluent solids, e.g. silos, bunkers; Supports therefor
Abstract
The invention discloses a silo top truss steel structure hoisting method, which is characterized in that a silo top truss steel structure is divided into a plurality of sections in advance, then temporary supports are erected on the top of a silo, subsection hoisting is started from the upper part of a silo top civil foundation in sequence, and parts of each section are assembled by means of the silo top temporary supports. The method for hoisting the steel structural parts of the truss on the top of the silo has good economical efficiency, reduces the construction difficulty and improves the construction efficiency and quality. The temporary support is used for assembling after hoisting the parts, the steel structure of the roof truss is stably installed, and the construction is safe and reliable. The parts are hoisted, the weight of the member is light, small hoisting machinery can be selected, and the construction cost is effectively controlled.
Description
Technical Field
The invention belongs to the field of steel structure construction methods, and particularly relates to a method for hoisting a silo top truss steel structure.
Background
At present, silo steel jacking structure installation, most of them are directly installed in a mode of integral hoisting after ground assembly, and an integral hoisting method is adopted, so that the integral truss is heavy after ground installation, and needs large hoisting machinery for hoisting.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the method for hoisting the truss steel structure at the top of the silo solves the problems that in the prior art, the integral hoisting construction is difficult, the quality is high and the quality is difficult to guarantee.
The invention adopts the following technical scheme for solving the technical problems:
a silo top truss steel structure hoisting method includes dividing a silo top truss steel structure into a plurality of sections in advance, then erecting temporary supports on the top of a silo, sequentially starting sectional hoisting from the upper portion of a civil foundation on the top of the silo, and assembling parts of the sections by means of the silo top temporary supports.
Each section of silo top truss steel structure comprises stand columns, lower chord members, upper chord members, web members, cross beams and roof trusses, wherein during hoisting, the stand columns stressed at two ends of the truss are installed firstly, the stand columns are installed on civil foundations on two sides of the silo to serve as foundation stand columns, then the cross beams and the roof trusses connected with the stand columns are hoisted to form door-shaped frames respectively, and then the lower chord members, the cross beams, the middle stand columns, the web members, the upper chord members and the roof trusses of adjacent sections are hoisted and installed in sequence until the construction of the silo top truss is completed.
And a horizontal reference line mark is arranged on the side surface of the mounting position of the lower chord.
The horizontal reference line is a steel wire, the straightness of the lower chord is adjusted by taking the steel wire as a reference, and the camber of the lower chord is adjusted by a jack on the temporary support.
And (3) adopting the temporary support as a stress point for installing the truss, completing the installation of all the trusses, and removing the temporary support after the truss is checked to be correct.
The hoisting method is suitable for a double-silo structure, and when the method is used for the double-silo structure, the truss steel structure sections above the adjacent silo walls of two silos are hoisted firstly, then the truss steel structure sections above the silo walls at two ends are hoisted, and then the sections connected in the middle are hoisted.
Every section silo top truss steel construction all includes stand, lower chord, upper chord, web member, crossbeam, roof truss, during hoist and mount, operates according to following step:
step 3, sequentially hoisting and installing a lower chord, a cross beam, a middle upright post, a web member, an upper chord and a roof truss of the steel structure truss section between two adjacent silo walls;
step 5, hoisting the corresponding part of the beam and the roof truss to form a portal frame respectively;
step 6, hoisting the lower chord of the middle part of the truss by taking the temporary support as a stressed support to be connected into a whole, and then sequentially installing the upper side beam of the lower chord, the middle upright post, the web member, the upper chord and the roof truss;
and 7, adjusting the camber of the lower chord by using a jack on the temporary support, installing other components until the installation of the truss steel structure is finished, and dismantling the temporary support.
And the step 2 and the step 3 also comprise the step of temporarily connecting the two sections into a whole by adopting section steel.
After the upright column and the portal frame on the civil foundation are installed, when the lower chord is installed, one end of the lower chord is connected with the fixed upright column, the other end of the lower chord is placed on the temporary support, and the jack is arranged on the upper portion of the temporary support.
When the middle part is hoisted, the lower chord is placed on the temporary support, the jack is arranged below the temporary support, and the temporary support is detached after the truss steel structure is installed.
Compared with the prior art, the invention has the following beneficial effects:
1. the method for hoisting the steel structural parts of the truss on the top of the silo has good economical efficiency, reduces the construction difficulty and improves the construction efficiency and quality.
2. The temporary support is used for assembling after hoisting the parts, the steel structure of the roof truss is stably installed, and the construction is safe and reliable.
3. The parts are hoisted, the weight of the member is light, small hoisting machinery can be selected, and the construction cost is effectively controlled.
Drawings
Fig. 1 is a schematic layout view of a steel structure of a silo top truss according to the invention.
FIG. 2 is a sectional schematic view of a truss on the top of a silo 1# in the invention.
Fig. 3 is a sectional schematic view of a truss on the top of a silo 2# in the invention.
Fig. 4 is a cross-sectional view taken along a-a in fig. 2.
Fig. 5 is a schematic view of the distribution of the temporary support frames of the present invention.
Fig. 6 is a cross-sectional view taken along line B-B of fig. 5.
Wherein, the labels in the figure are: 1-upright column; 2-lower chord; 3-upper chord; 4-web member; 5-a cross beam; 6-roof truss; 7-temporary support frame; 8-a jack; 9-truss; 10-top of silo.
Detailed Description
The structure and operation of the present invention will be further described with reference to the accompanying drawings.
A silo top truss steel structure hoisting method includes dividing a silo top truss steel structure into a plurality of sections in advance, then erecting temporary supports on the top of a silo, sequentially starting sectional hoisting from the upper portion of a civil foundation on the top of the silo, and assembling parts of the sections by means of the silo top temporary supports.
In a first embodiment of the present invention, a first,
a silo top truss steel structure hoisting method includes dividing a silo top truss steel structure into a plurality of sections in advance, wherein each section of silo top truss steel structure comprises an upright post 1, a lower chord 2, an upper chord 3, web members 4, a cross beam 5 and a roof truss 6, during hoisting, firstly installing stressed upright posts at two ends of a truss, installing the upright posts 1 on civil foundations at two sides of a silo to serve as foundation upright posts, then hoisting the cross beam 5 and the roof truss 6 connected with the upright posts to form a door-shaped frame respectively, and then sequentially hoisting and installing the lower chord, the cross beam, a middle upright post, the web members, the upper chord and the roof truss of adjacent sections until the construction of a silo top truss 9 is completed.
And a horizontal reference line mark is arranged on the side surface of the mounting position of the lower chord.
The horizontal reference line is a steel wire, the straightness of the lower chord is adjusted by taking the steel wire as a reference, and the camber of the lower chord is adjusted by a jack 8 on the temporary support.
And (3) adopting the temporary support as a stress point for installing the truss, completing the installation of all the trusses, and removing the temporary support after the truss is checked to be correct.
The hoisting method is suitable for a double-silo structure, and when the method is used for the double-silo structure, the truss steel structure sections above the adjacent silo walls of two silos are hoisted firstly, then the truss steel structure sections above the silo walls at two ends are hoisted, and then the sections connected in the middle are hoisted.
Every section silo top truss steel construction all includes stand, lower chord, upper chord, web member, crossbeam, roof truss, during hoist and mount, operates according to following step:
step 3, sequentially hoisting and installing a lower chord, a cross beam, a middle upright post, a web member, an upper chord and a roof truss of the steel structure truss section between two adjacent silo walls;
step 5, hoisting the corresponding part of the beam and the roof truss to form a portal frame respectively;
step 6, hoisting the lower chord of the middle part of the truss by taking the temporary support as a stressed support to be connected into a whole, and then sequentially installing the upper side beam of the lower chord, the middle upright post, the web member, the upper chord and the roof truss;
and 7, adjusting the camber of the lower chord by using a jack on the temporary support, installing other components until the installation of the truss steel structure is finished, and dismantling the temporary support.
In the second embodiment, as shown in fig. 1 to 6,
the scheme is described in detail by taking the sectional hoisting of the truss at the top of the double-barrel bin as an example.
The top 10 of the silo is divided into 9 sections from right to left for hoisting, and each section is connected by high-strength bolts.
Firstly, manufacturing all members of a truss such as an upright post and the like in a processing plant, marking the member number, checking the processing quality and then transporting to the site;
and the component is placed at a corresponding position on the ground below the silo according to the installation position of the component on the drawing, so that the hoisting is facilitated.
Preparing hoisting on the top of the silo, processing and arranging a temporary support frame 7 according to a drawing, and placing a jack 8 on the support frame; and a steel wire is pulled beside the truss installation base to serve as a control line for hoisting.
During hoisting, the temporary support frame 7 is used for bearing the weight of the truss, the lower chord 2 is placed on the temporary support frame 7, the upright posts 1, the upper chord 3, the web members 4, the cross beam 5, the roof truss 6 and other components are sequentially arranged above the lower chord, and the jack 8 is used for adjusting the camber of the truss during hoisting.
The operation process is as follows:
1) according to a drawing, a temporary support frame 7 is placed below the installation position of the truss suspended upright post 1, a jack 8 is installed on the temporary support frame 7, and a steel wire is arranged beside the installation position of the lower chord 2.
2) Firstly, the upright posts 1, the cross beams 5 and the roof truss 6 which are positioned on the civil foundation in the third section and the fourth section are hoisted to respectively form a door-shaped frame.
3) And hoisting the part of the fourth section between the two silos, and temporarily connecting the fourth section and the third section into a whole by using section steel.
4) And hoisting the fifth section of the lower chord 2, connecting one end of the fifth section of the lower chord with the fourth section of the upright post 1, placing the other end of the fifth section of the lower chord on a temporary support frame 7 and a jack 8, and hoisting the cross beam 5, the rest upright posts 1, the web member 4, the upper chord 3 and the roof truss 6 in sequence.
5) And hoisting the third section lower chord 2, wherein one end of the third section lower chord 2 is connected with the third section upright post 1, and the other end of the third section lower chord is placed on the temporary support frame 7 and the jack 8. And hoisting the cross beam 5, the rest of the upright columns 1, the web members 4, the upper chord 3 and the roof truss 6 in sequence.
6) And hoisting the column 1, the beam 5 and the roof truss 6 on the civil foundation with the eighth section, the ninth section and the first section to form a portal frame respectively. And then the lower chord 2 is placed on the temporary support frame 7 and the jack 8, and the cross beam 5, the rest of the upright columns 1, the web members 4, the upper chord 3 and the roof truss 6 are hoisted in sequence.
7) And hoisting a second section, a sixth section and a seventh section in the middle of the top of the silo, placing the lower chord 2 on the temporary support frame 8 and the jack 8, and hoisting the cross beam 5, the rest of the stand columns 1, the web members 4, the upper chord 3 and the roof truss 6 in sequence.
The lower chord 2 and the upper chord 3 are connected into a whole by high-strength bolts, the camber of the lower chord is adjusted by a jack 8, and the straightness of the chord is adjusted by taking a steel wire as a reference.
And (5) completing hoisting of the component, checking the connection fastening condition, and removing the temporary support frame after the component is free of errors.
The hoisting method has the following advantages:
1. the construction efficiency is high, reduces the construction degree of difficulty.
2. The steel structure of the roof truss is stably installed, and the construction is safe and reliable.
3. The components are hoisted, the weight of the component is light, small hoisting machinery can be selected, and the economical efficiency is good.
The invention and its features, aspects and advantages will become more apparent from the detailed description of non-limiting embodiments with reference to the following drawings. Like reference symbols in the various drawings indicate like elements. The drawings are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the invention.
The above description is of the preferred embodiment of the invention. It is to be understood that the invention is not limited to the particular embodiments described above, in that devices and structures not described in detail are understood to be implemented in a manner common in the art; those skilled in the art can make many possible variations and modifications to the disclosed embodiments, or modify equivalent embodiments to equivalent variations, without departing from the spirit of the invention, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.
Claims (10)
1. A method for hoisting a silo top truss steel structure is characterized by comprising the following steps: the method comprises the steps of dividing a silo top truss steel structure into a plurality of sections in advance, then erecting temporary supports on the top of a silo, sequentially hoisting the sections from the upper side of a civil foundation on the top of the silo in a segmented mode, and assembling parts of the sections by means of the temporary supports on the top of the silo.
2. The hoisting method of the silo top truss steel structure as recited in claim 1, wherein: each section of silo top truss steel structure comprises stand columns, lower chord members, upper chord members, web members, cross beams and roof trusses, wherein during hoisting, the stand columns stressed at two ends of the truss are installed firstly, the stand columns are installed on civil foundations on two sides of the silo to serve as foundation stand columns, then the cross beams and the roof trusses connected with the stand columns are hoisted to form door-shaped frames respectively, and then the lower chord members, the cross beams, the middle stand columns, the web members, the upper chord members and the roof trusses of adjacent sections are hoisted and installed in sequence until the construction of the silo top truss is completed.
3. The hoisting method of the silo top truss steel structure as recited in claim 2, characterized in that: and a horizontal reference line mark is arranged on the side surface of the mounting position of the lower chord.
4. The hoisting method of the silo top truss steel structure as recited in claim 3, characterized in that: the horizontal reference line is a steel wire, the straightness of the lower chord is adjusted by taking the steel wire as a reference, and the camber of the lower chord is adjusted by a jack on the temporary support.
5. The hoisting method of the silo top truss steel structure as recited in claim 2, characterized in that: and (3) adopting the temporary support as a stress point for installing the truss, completing the installation of all the trusses, and removing the temporary support after the truss is checked to be correct.
6. The hoisting method of the silo top truss steel structure as recited in claim 1, wherein: the hoisting method is suitable for a double-silo structure, and when the method is used for the double-silo structure, the truss steel structure sections above the adjacent silo walls of two silos are hoisted firstly, then the truss steel structure sections above the silo walls at two ends are hoisted, and then the sections connected in the middle are hoisted.
7. The hoisting method of the silo top truss steel structure as recited in claim 6, characterized in that: every section silo top truss steel construction all includes stand, lower chord, upper chord, web member, crossbeam, roof truss, during hoist and mount, operates according to following step:
step 1, hoisting upright columns on civil engineering foundations at the tops of two adjacent silo walls to serve as foundation upright columns;
step 2, hoisting partial cross beams between the foundation columns and roof trusses to form a portal frame respectively;
step 3, sequentially hoisting and installing a lower chord, a cross beam, a middle upright post, a web member, an upper chord and a roof truss of the steel structure truss section between two adjacent silo walls;
step 4, hoisting upright columns on the civil engineering foundations at the tops of the other two ends of the two silos to serve as foundation upright columns;
step 5, hoisting the corresponding part of the beam and the roof truss to form a portal frame respectively;
step 6, hoisting the lower chord of the middle part of the truss by taking the temporary support as a stressed support to be connected into a whole, and then sequentially installing the upper side beam of the lower chord, the middle upright post, the web member, the upper chord and the roof truss;
and 7, adjusting the camber of the lower chord by using a jack on the temporary support, installing other components until the installation of the truss steel structure is finished, and dismantling the temporary support.
8. The hoisting method of the silo top truss steel structure as recited in claim 7, wherein: and the step 2 and the step 3 also comprise the step of temporarily connecting the two sections into a whole by adopting section steel.
9. The hoisting method of the silo top truss steel structure as recited in claim 7, wherein: after the upright column and the portal frame on the civil foundation are installed, when the lower chord is installed, one end of the lower chord is connected with the fixed upright column, the other end of the lower chord is placed on the temporary support, and the jack is arranged on the upper portion of the temporary support.
10. The hoisting method of the silo top truss steel structure as recited in claim 9, wherein: when the middle part is hoisted, the lower chord is placed on the temporary support, the jack is arranged below the temporary support, and the temporary support is detached after the truss steel structure is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010584094.7A CN111827678A (en) | 2020-06-24 | 2020-06-24 | Method for hoisting truss steel structure at top of silo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010584094.7A CN111827678A (en) | 2020-06-24 | 2020-06-24 | Method for hoisting truss steel structure at top of silo |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111827678A true CN111827678A (en) | 2020-10-27 |
Family
ID=72898009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010584094.7A Pending CN111827678A (en) | 2020-06-24 | 2020-06-24 | Method for hoisting truss steel structure at top of silo |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111827678A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112696033A (en) * | 2020-12-25 | 2021-04-23 | 中冶天工集团有限公司 | On-site bulk loading method for ultra-large steel structure truss |
-
2020
- 2020-06-24 CN CN202010584094.7A patent/CN111827678A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112696033A (en) * | 2020-12-25 | 2021-04-23 | 中冶天工集团有限公司 | On-site bulk loading method for ultra-large steel structure truss |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8713892B2 (en) | Method for assembling shell segments for forming tower sections of a hybrid wind turbine tower | |
| JP2008274637A (en) | Construction method for continuous viaduct | |
| CN112267709A (en) | Segmented demolition construction method for large-span beam string structure | |
| CN111764300B (en) | Curved steel beam pushing system and construction method | |
| CN102277980B (en) | Device for integrally jacking roof of single-layer industrial factory building and construction method thereof | |
| CN111119071A (en) | Construction method for assembling precast concrete segment box girder | |
| CN112081016A (en) | Lifting and folding device for bridge arch rib | |
| CN115467421B (en) | Hoisting construction method for complex large-span steel roof | |
| CN111663457A (en) | Assembly module, modular construction platform and method and bridge abutment construction method | |
| CN111827678A (en) | Method for hoisting truss steel structure at top of silo | |
| CN112376440A (en) | Construction process for non-closure hoisting of main beam of cable-stayed bridge | |
| CN116856544A (en) | Annular inclined truss structure and installation method thereof | |
| CN113585828A (en) | Installation method of large-span inverted triangular pipe truss slope roof workshop | |
| JP5701490B2 (en) | Roof repair method and structure | |
| CN108678411B (en) | Method for replacing columns of supporting beams without dismantling factory building | |
| CN105672672A (en) | Pier column construction system and construction method | |
| JP6736226B2 (en) | Structure and construction method of the structure constructed on the tower-shaped building | |
| CN113585097B (en) | Construction process suitable for mounting bridge girder erection machine | |
| JP2005120963A (en) | Supporting column constituting guide tower and wind power generator constructing method using the same | |
| CN111535182A (en) | Tubular bridge girder erection method | |
| CN219430545U (en) | Operation platform for utilizing stiffness framework for tower column head section | |
| CN117735395B (en) | Lifting support structure for lifting large-scale track type gantry crane and mounting method | |
| CN215947932U (en) | Full-fabricated tower type support frame for cast-in-place construction of concrete box girder | |
| CN219973501U (en) | Prefabricated steel structure building module | |
| CN115492400B (en) | Steel structure net frame lifting construction method |
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 |