CN102966184A - Reserving fold belt device for long-span steel structure truss and construction method of reserving fold belt - Google Patents
Reserving fold belt device for long-span steel structure truss and construction method of reserving fold belt Download PDFInfo
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- CN102966184A CN102966184A CN2012105069377A CN201210506937A CN102966184A CN 102966184 A CN102966184 A CN 102966184A CN 2012105069377 A CN2012105069377 A CN 2012105069377A CN 201210506937 A CN201210506937 A CN 201210506937A CN 102966184 A CN102966184 A CN 102966184A
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Abstract
The invention discloses a reserving fold belt device for a long-span steel structure truss and a construction method of a reserving fold belt. The device is connected between the steel truss and a steel corbel. A long connecting steel plate with at least two bolt holes is temporarily welded at a to-be-folded end part of the steel truss; the long connecting steel plate is placed in the length direction vertically; one half of the long connecting steel plate is welded on the steel truss, and the other half of the long connecting steel plate spans across a to-be-folded welding seam and is arranged on the steel corbel in a suspending manner; a short connecting steel plate is vertically welded at the steel corbel corresponding to the bolt holes; at least two slotted holes are formed in the short connecting steel plate; bolts penetrate through the bolt holes and the slotted holes and are temporarily connected with the steel truss and the steel corbel before folding; a right limiting block and a left limiting block are welded on the left side and the right side of the long connecting steel plate respectively, relative to the short connecting steel plate; and adjustment gaps are reserved among the right limiting block, the left limiting block and the short connecting steel plate. According to the device, fixed connection after a structure is folded is changed to temporary connection that the reversing fold belt is not folded temporarily; the subsequent construction is not affected on the condition that the safety of the structure is ensured; and the schedule is accelerated.
Description
Technical field
The present invention relates to a kind of steel structure truss linkage and job practices thereof, particularly a kind of large-span steel truss is reserved and is closed up band temporary connecting device and job practices thereof.
Background technology
At present, in the large-span steel installation exercise, during folding structures, because design is often restricted to closing up temperature, usually must be controlled in certain temperature range and closes up.Yet often since the impact of construction speed and Job Scheduling be difficult in the temperature range of regulation, close up welding, thereby affect the enforcement of follow-up work, the duration is caused tremendous influence.
Summary of the invention
To be closed up temperature effect and can't close up to follow-up construction and bring the problem that affects in order to overcome, patent of the present invention provides a kind of large-span steel truss reservation to close up belting and job practices thereof, by changing the truss fringe conditions, take interim measures, affixed behind the folding structures reserved hinged that band wouldn't close up instead, under the condition that guarantees structural safety, carry out follow-up construction.Wait to reach to design in the situation of closing up temperature and carry out again weld job, finish the rear recovery plan boundary condition of closing up.Solve, follow-up work is proceeded.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of large-span steel truss is reserved and is closed up belting, be connected between steel truss and the steel corbel, its feature is being held together long junction steel plate that has at least two bolts hole of the interim welding in end for the match of described steel truss, long junction steel plate is along long to upright placement, half is welded on the steel truss, second half holds together weld seam across match and is suspended on the steel corbel, described steel corbel is uprightly welding a short junction steel plate corresponding to the position of above-mentioned bolt hole, have at least two slotted holes on the short junction steel plate, bolt pass above-mentioned bolt hole be connected with slotted hole close up before interim steel truss and the steel corbel of connecting, described long junction steel plate is welding respectively right limit piece and left limit piece with respect to the both sides, the left and right sides of short junction steel plate, leaves between described right limit piece and left limit piece and the short junction steel plate and regulates the gap.
It is steel truss upper chord or steel truss lower chord that the end is held together in the match of described steel truss.
Use large-span steel truss that above-mentioned reservation closes up belting and reserve that to close up the belt construction method as follows:
First with the steel truss hoisted in position, it is corresponding with steel corbel that the end is held together in its match, hold together long junction steel plate that has at least two bolts hole of the interim welding in end in the match of described steel truss, long junction steel plate is along long to upright placement, half uprightly is welded on the steel truss, second half holds together weld seam across match and is suspended on the steel corbel, uprightly weld a short junction steel plate at steel corbel corresponding to the position of above-mentioned bolt hole, have at least two slotted holes on the short junction steel plate, with bolt pass above-mentioned bolt hole be connected with slotted hole close up before interim steel truss and the steel corbel of connecting; Weld respectively right limit piece and left limit piece at long junction steel plate with respect to the both sides, the left and right sides of short junction steel plate, make to leave between right limit piece and left limit piece and the short junction steel plate and regulate the gap, wait to reach when closing up condition, close up again the welding of seam.
The present invention can guarantee under the prerequisite that does not affect follow-up construction steel work to be closed up arrangement of time in design optimum temperature range or optimum construction period.By changing the truss fringe conditions, take interim measures, affixed behind the folding structures reserved hinged that band wouldn't close up instead, under the condition that guarantees structural safety, carry out follow-up construction, wait to reach to design in the situation of closing up temperature and carry out again weld job, finish the rear recovery plan boundary condition of closing up.The present invention can realize temporarily closing up of large-span steel truss, and construction technology is safe and reliable, has not only guaranteed workmanship but also accelerated programming.
Description of drawings
Fig. 1 is that the present invention reserves the structural representation that closes up belting.
Fig. 2 is that the present invention reserves the schematic top plan view of closing up belting.
Description of drawings: weld seam is held together in 1-steel truss, 2-steel corbel, the long junction steel plate of 3-, the short junction steel plate of 4-, 5-right limit piece, 6-bolt, 7-left limit piece, 8-match.
The specific embodiment:
Below in conjunction with accompanying drawing and embodiment, the present invention is further described, and embodiment is referring to Fig. 1-shown in Figure 2:
A kind of large-span steel truss is reserved and is closed up belting, is connected between steel truss 1 and the steel corbel 2, and it is steel truss upper chord or steel truss lower chord that the end is held together in the match of described steel truss (1).Long junction steel plate 3 that has at least two bolts hole of the interim welding in end is held together in the match of described steel truss 1, the width of long junction steel plate 3 is 150mm, along long to upright placement, half is welded on the steel truss 1, second half one holds together weld seam 8 across match and is suspended on the steel corbel 2, described steel corbel 2 is uprightly welding a short junction steel plate 4 corresponding to the position of above-mentioned bolt hole, the width of short junction steel plate is 100mm, have at least two slotted holes on it, bolt 6 pass above-mentioned bolt hole be connected with slotted hole close up before interim steel truss 1 and the steel corbel 2 of connecting, described long junction steel plate 3 is welding respectively right limit piece 5 and left limit piece 7 with respect to the both sides, the left and right sides of short junction steel plate 4, and described right limit piece 5 and left limit piece 7 and short junction steel plate 4 amongs leave the adjusting gap of 10mm.
Use large-span steel truss that above-mentioned reservation closes up belting and reserve that to close up the belt construction method as follows:
First with steel truss 1 hoisted in position, it is corresponding with steel corbel 2 that the end is held together in its match, hold together long junction steel plate 3 that has at least two bolts hole of the interim welding in end in the match of described steel truss 1, long junction steel plate 3 is along long to upright placement, half is welded on the steel truss 1, second half holds together weld seam across match and is suspended on the steel corbel 2, uprightly weld a short junction steel plate 4 at steel corbel 2 corresponding to the position of above-mentioned bolt hole, have at least two slotted holes on the short junction steel plate 4, with bolt 6 pass above-mentioned bolt hole be connected with slotted hole close up before interim steel truss 1 and the steel corbel 2 of connecting; Weld respectively right limit piece 5 and left limit piece 7 at long junction steel plate 3 with respect to the both sides, the left and right sides of short junction steel plate 4, make to leave between right limit piece 5 and left limit piece 7 and the short junction steel plate 4 and regulate the gap, wait to reach when closing up condition, close up again the welding of seam.
Claims (3)
1. a large-span steel truss is reserved and is closed up belting, be connected between steel truss (1) and the steel corbel (2), it is characterized in that: long junction steel plate (3) that has at least two bolts hole of the interim welding in end is held together in the match of described steel truss (1), long junction steel plate (3) is along long to upright placement, half is welded on the steel truss (1), second half holds together weld seam (8) across match and is suspended on the steel corbel (2), described steel corbel (2) is uprightly welding a short junction steel plate (4) corresponding to the position of above-mentioned bolt hole, have at least two slotted holes on the short junction steel plate (4), bolt (6) pass above-mentioned bolt hole be connected with slotted hole close up before interim steel truss (1) and the steel corbel (2) of connecting, described long junction steel plate (3) is welding respectively right limit piece (5) and left limit piece (7) with respect to the both sides, the left and right sides of short junction steel plate (4), leaves between described right limit piece (5) and left limit piece (7) and the short junction steel plate (4) and regulates the gap.
2. reserve according to the described large-span steel truss of claim and close up belting, it is characterized in that: it is steel truss upper chord or steel truss lower chord that the end is held together in the match of described steel truss (1).
3. a large-span steel truss is reserved and is closed up the belt construction method, it is characterized in that: application rights requires 1 or 2 described large-span steel truss reservations to close up belting, first with steel truss (1) hoisted in position, it is corresponding with steel corbel (2) that the end is held together in its match, hold together long junction steel plate (3) that has at least two bolts hole of the interim welding in end in the match of described steel truss (1), long junction steel plate (3) is along long to upright placement, half is welded on the steel truss (1), second half holds together weld seam across match and is suspended on the steel corbel (2), uprightly weld a short junction steel plate (4) at steel corbel (2) corresponding to the position of above-mentioned bolt hole, have at least two slotted holes on the short junction steel plate (4), with bolt (6) pass above-mentioned bolt hole be connected with slotted hole close up before interim steel truss (1) and the steel corbel (2) of connecting; Weld respectively right limit piece (5) and left limit piece (7) at long junction steel plate (3) with respect to the both sides, the left and right sides of short junction steel plate (4), make to leave between right limit piece (5) and left limit piece (7) and the short junction steel plate (4) and regulate the gap, wait to reach when closing up condition, close up again the welding of seam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105069377A CN102966184A (en) | 2012-12-03 | 2012-12-03 | Reserving fold belt device for long-span steel structure truss and construction method of reserving fold belt |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012105069377A CN102966184A (en) | 2012-12-03 | 2012-12-03 | Reserving fold belt device for long-span steel structure truss and construction method of reserving fold belt |
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| CN102966184A true CN102966184A (en) | 2013-03-13 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544398A (en) * | 2015-12-15 | 2016-05-04 | 中建交通建设集团有限公司 | Horizontal force self-balancing type splayed heavy type upper air support system and installation method thereof |
| CN106499061A (en) * | 2016-10-21 | 2017-03-15 | 刘振华 | A kind of aerial laterally para-position attachment means of steel construction |
| CN109371848A (en) * | 2018-12-10 | 2019-02-22 | 中交四公局第五工程有限公司 | The longitudinal temporary connecting structure and method of suspension bridge concrete stiffening girder installation |
| CN109440660A (en) * | 2018-12-10 | 2019-03-08 | 中交四公局第五工程有限公司 | Suspension bridge wide cut concrete stiffening girder cable crane turns installation structures and methods |
| CN109868749A (en) * | 2019-03-15 | 2019-06-11 | 中铁大桥局集团有限公司 | A kind of steel truss girder hole-specifically sets up closure mouth wind-resistance locking device and application method |
| CN110552505A (en) * | 2019-06-28 | 2019-12-10 | 中冶(上海)钢结构科技有限公司 | Limiting plate combination for improving hoisting efficiency of section steel truss |
| CN112458917A (en) * | 2020-11-30 | 2021-03-09 | 中铁大桥局第七工程有限公司 | Truss sheet type closure construction method for truss arch bridge |
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Patent Citations (6)
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| JPH06185114A (en) * | 1992-12-15 | 1994-07-05 | Kajima Corp | Joining method for steel-pipe column |
| JP2006083611A (en) * | 2004-09-16 | 2006-03-30 | Shimizu Corp | Joint structure and joining method of steel column and steel beam |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544398A (en) * | 2015-12-15 | 2016-05-04 | 中建交通建设集团有限公司 | Horizontal force self-balancing type splayed heavy type upper air support system and installation method thereof |
| CN106499061A (en) * | 2016-10-21 | 2017-03-15 | 刘振华 | A kind of aerial laterally para-position attachment means of steel construction |
| CN109371848A (en) * | 2018-12-10 | 2019-02-22 | 中交四公局第五工程有限公司 | The longitudinal temporary connecting structure and method of suspension bridge concrete stiffening girder installation |
| CN109440660A (en) * | 2018-12-10 | 2019-03-08 | 中交四公局第五工程有限公司 | Suspension bridge wide cut concrete stiffening girder cable crane turns installation structures and methods |
| CN109868749A (en) * | 2019-03-15 | 2019-06-11 | 中铁大桥局集团有限公司 | A kind of steel truss girder hole-specifically sets up closure mouth wind-resistance locking device and application method |
| CN110552505A (en) * | 2019-06-28 | 2019-12-10 | 中冶(上海)钢结构科技有限公司 | Limiting plate combination for improving hoisting efficiency of section steel truss |
| CN112458917A (en) * | 2020-11-30 | 2021-03-09 | 中铁大桥局第七工程有限公司 | Truss sheet type closure construction method for truss arch bridge |
| CN112458917B (en) * | 2020-11-30 | 2022-06-17 | 中铁大桥局第七工程有限公司 | Truss sheet type closure construction method for truss arch bridge |
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Application publication date: 20130313 |