CN113250484A - Concrete warehouse external truss repairing method and concrete warehouse external truss repairing structure - Google Patents
Concrete warehouse external truss repairing method and concrete warehouse external truss repairing structure Download PDFInfo
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- CN113250484A CN113250484A CN202110557386.6A CN202110557386A CN113250484A CN 113250484 A CN113250484 A CN 113250484A CN 202110557386 A CN202110557386 A CN 202110557386A CN 113250484 A CN113250484 A CN 113250484A
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- 239000004567 concrete Substances 0.000 title claims abstract description 81
- 238000000034 method Methods 0.000 title claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 212
- 239000010959 steel Substances 0.000 claims abstract description 212
- 230000008439 repair process Effects 0.000 claims abstract description 18
- 230000008569 process Effects 0.000 claims abstract description 7
- 230000001681 protective effect Effects 0.000 claims description 47
- 230000002787 reinforcement Effects 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 21
- 238000010276 construction Methods 0.000 abstract description 20
- 239000004568 cement Substances 0.000 abstract description 6
- 239000002994 raw material Substances 0.000 abstract description 2
- 238000003466 welding Methods 0.000 description 10
- 230000006872 improvement Effects 0.000 description 6
- 239000000428 dust Substances 0.000 description 5
- 238000004078 waterproofing Methods 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- 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
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
-
- 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
-
- 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
- E04G21/12—Mounting of reinforcing inserts; Prestressing
-
- 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
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
- E04C2003/0452—H- or I-shaped
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
本发明提供一种应用于水泥工厂水泥库或生料库等构筑物库技术领域的混凝土库库外桁架修复方法，本发明还涉及一种混凝土库库外桁架修复结构，所述的混凝土库库外桁架修复方法的修复步骤为：将钢梁(1)吊装到混凝土库(4)库顶放置，钢梁(1)与混凝土库(4)库内的桁架(2)垂直布置；库顶板(9)凿出开孔，用钢绞线(3)绕过桁架(2)和钢梁(1)，对钢绞线(3)进行张拉；钢绞线(3)张拉过程中，下沉的桁架(2)恢复到初始位置；在钢梁(1)和桁架(2)节点之间焊接槽钢(6)，本发明的混凝土库库外桁架修复方法及修复结构，对桁架进行加固和纠偏，处理节点裂缝，使得桁架重新满足要求，不需要进入库内进行维修，便于施工。The present invention provides a method for repairing the outer truss of a concrete silo, which is applied to the technical field of a cement silo or a raw material silo in a cement factory. The repair steps of the truss repair method are as follows: hoist the steel beam (1) to the top of the concrete storehouse (4) and place it, and the steel beam (1) is vertically arranged with the truss (2) in the concrete storehouse (4); the storehouse roof (9) ) to cut out openings, and use the steel strand (3) to bypass the truss (2) and the steel beam (1) to stretch the steel strand (3); during the tensioning process of the steel strand (3), the The truss (2) is restored to the original position; the channel steel (6) is welded between the steel beam (1) and the truss (2) node, the repairing method and repairing structure of the truss outside the concrete storehouse of the present invention are used to reinforce and repair the truss. Correct deviation and deal with joint cracks, so that the truss can meet the requirements again, and it is not necessary to enter the warehouse for maintenance, which is convenient for construction.
Description
Technical Field
The invention belongs to the technical field of a structure warehouse such as a cement warehouse or a raw material warehouse of a cement factory, and particularly relates to a method for repairing a truss outside a concrete warehouse.
Background
Very large diameter reinforced concrete stores are built in cement plants for cement or raw stock storage. The large-diameter warehouse designed in the early stage is large in diameter, a truss form is adopted for the bearing structure on the top of the warehouse, and in the long-term use process, due to the fact that stacking is too high, material pressure has a certain destructive effect on the truss, or the truss is damaged and sinks due to reasons such as welding quality and the like, so that the top of the warehouse is driven to sink, and use and structural safety are affected. Since the truss is in the warehouse, it is difficult to weld and restore the truss itself. In the use process, due to factors such as stacking lateral extrusion or welding quality, the original supporting truss rod in the warehouse falls off, the truss sinks integrally, if the truss is not processed, water and dust are accumulated on the top of the warehouse, the load is increased, the overall collapse of the top of the warehouse is caused, the use is influenced, and the structure safety is influenced, so that when the truss has problems, the original truss must be reinforced, and the sinking part is corrected to meet the process use requirements. In the structure in the prior art, the top truss is located in the warehouse, so that the dust in the warehouse is large, lighting and ventilation are avoided, the construction difficulty is high, the maintenance is inconvenient, the maintenance cost is high, the labor intensity is high, and the efficiency is low.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the method for repairing the truss outside the concrete warehouse is simple in steps, can be used for reinforcing and rectifying the truss by taking the construction feasibility into consideration on the basis of not dismantling the original warehouse top structure, and treating the joint cracks by adding the steel beam on the upper portion of the warehouse top and utilizing the connection and positioning functions of the steel beam and the steel strand outside the warehouse, so that the truss meets the design requirements and the use requirements again, the structure safety is guaranteed, the truss does not need to enter the warehouse for maintenance, and the construction is convenient.
To solve the technical problems, the invention adopts the technical scheme that:
the invention relates to a method for repairing a truss outside a concrete warehouse, which comprises the following steps:
s1, manufacturing more than two steel beams, hoisting the steel beams to the top of a concrete warehouse for placement, and arranging the steel beams and trusses in the concrete warehouse vertically;
s2, chiseling a hole in a warehouse top plate at the lower part of the intersection of the steel beam and the truss, and stretching the steel strand by using the steel strand to bypass the truss and the steel beam;
s3, in the process of tensioning the steel strand, restoring the sunk truss to the initial position;
s4, welding channel steel between the steel beam and the truss node, and connecting the truss with the steel beam;
and S5, after the truss is reinforced, leveling and waterproofing the top of the concrete warehouse.
And after the steel strand is tensioned to restore the sunk truss to the initial position, fixing the two ends of the steel strand by using a special clamp to prevent the steel strand from loosening.
The protective sleeve is sleeved on the part of the steel strand, which is in contact with the steel beam, and the lower protective sleeve is sleeved on the part of the steel strand, which is in contact with the truss.
The steel beam be H shaped steel roof beam, the steel beam sets up two.
When the steel beam is hoisted to the top of the concrete warehouse for placement, the end part of the steel beam is clamped in the clamping groove at the upper part of the concrete warehouse or welded with the embedded steel bar at the upper part of the concrete warehouse.
The invention also relates to a concrete warehouse external truss repairing structure which is simple in structure, can be used for reinforcing and rectifying the truss by taking construction feasibility into consideration on the basis of not dismantling the original warehouse top structure, and treating node cracks by adding a steel beam on the upper part of the warehouse top and utilizing the connecting and positioning functions of the steel beam and the steel strand outside the warehouse, so that the truss meets the design requirement and the use requirement again, the structure safety is guaranteed, the truss repairing structure does not need to enter the warehouse for maintenance, and the construction is convenient.
The structure is restoreed to truss outside concrete storehouse include girder steel, steel strand wires, the girder steel sets up to the structure that can place at the concrete storehouse top, the girder steel arranges with the truss in the concrete storehouse is perpendicular, the steel strand wires sets up to the structure that can pass the trompil of the storehouse roof of girder steel and the crossing department lower part of truss and bypass truss and girder steel.
The outer truss repair structure of concrete storehouse still include protective sheath and lower protective sheath, go up the protective sheath and be the steel pipe protective sheath with lower protective sheath, go up the protective sheath and all set up to the structure that is the U font with lower protective sheath.
The steel strand wires and the position of girder steel contact suit protective sheath on, go up the protective sheath and clamp at girder steel upper portion position, the protective sheath is down installed to the position suit of steel strand wires and truss contact, lower protective sheath clamps in truss lower part position.
The structure is restoreed to truss outside concrete storehouse still include special fixture, special fixture sets up to can be fixed steel strand wires both ends and prevent the not hard up structure of steel strand wires.
The steel beam be H shaped steel roof beam, the steel beam sets up two.
By adopting the technical scheme of the invention, the following beneficial effects can be obtained:
the invention provides an improvement on the concrete warehouse external truss repairing method and structure, aiming at the problems in the prior art. In the prior art, because the truss is arranged inside the concrete warehouse, when the truss needs to be maintained, an operator needs to enter the interior of the concrete warehouse to operate. And the dust in the warehouse is large, lighting and ventilation are not generated, the construction difficulty is large, the maintenance is inconvenient, the maintenance cost is high, the labor intensity is high, and the efficiency is low. Therefore, the invention provides improvement based on a completely different thought from the prior art, so that the truss can be maintained outside the concrete warehouse without entering the concrete warehouse by personnel, the problems in the prior art are avoided, the construction safety of the personnel is guaranteed, the labor intensity is reduced, and the maintenance efficiency is improved. When maintenance is carried out, firstly, a steel beam is manufactured and hoisted to the position of the top of the warehouse, and the steel beam is vertical to the original truss; drilling a hole on a warehouse top plate at the intersection of a steel beam and a truss, connecting the truss positioned below with steel by using a steel strand, tensioning, taking the steel beam as a stress fulcrum, and forming upward tension on the truss when the steel strand is tightened so as to restore the sunk truss to the initial level; after the sunk truss is restored to the original shape, fixing two ends of the steel strand by using a special clamp, applying a positioning force to the steel beam and the truss by using the steel strand at the moment, enabling the truss not to sink, and then welding channel steel between the steel beam and truss nodes, so that the truss and the steel beam are ensured to be reliably connected; and after the warehouse top truss is reinforced, leveling and waterproofing the warehouse top. The method and the structure for repairing the truss outside the concrete warehouse have low cost, can add the steel beam on the upper part of the warehouse top by considering the construction feasibility on the basis of not removing the original warehouse top structure, and utilize the connecting and positioning functions of the steel beam and the steel strand outside the warehouse to reinforce and correct the truss and treat the joint crack, so that the truss meets the design requirement and the use requirement again, the structure safety is ensured, the truss does not need to enter the warehouse for maintenance, and the construction is convenient.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
FIG. 1 is a schematic structural diagram of a concrete warehouse external truss repair structure according to the present invention;
FIG. 2 is a schematic top view of the concrete warehouse external truss repair structure according to the present invention;
FIG. 3 is a schematic cross-sectional view of the side A-A of the concrete warehouse external truss repair structure shown in FIG. 2;
FIG. 4 is a schematic structural diagram of a truss of the concrete warehouse external truss repair structure according to the present invention;
in the drawings, the reference numbers are respectively: 1. a steel beam; 2. a truss; 3. steel strand wires; 4. a concrete reservoir; 5. an upper protective sleeve; 6. connecting channel steel; 7. a special fixture; 8. a lower protective sleeve; 9. a top plate of the warehouse.
Detailed Description
The following detailed description of the embodiments of the present invention, such as the shapes and structures of the components, the mutual positions and connection relations among the components, the functions and operation principles of the components, will be made by referring to the accompanying drawings and the description of the embodiments:
as shown in the attached drawings 1-4, the invention relates to a method for repairing a truss outside a concrete reservoir, which comprises the following steps:
s1, manufacturing more than two steel beams 1, hoisting the steel beams 1 to the top of a concrete warehouse 4, and placing the steel beams 1 and a truss 2 in the concrete warehouse 4 vertically; s2, chiseling a hole in a warehouse top plate 9 at the lower part of the intersection of the steel beam 1 and the truss 2, winding the truss 2 and the steel beam 1 by using a steel strand 3, tensioning the steel strand 3, applying force to the truss 2 by using the steel strand, and pulling up the truss 2; s3, in the process of tensioning the steel strand 3, the sunk truss 2 is restored to the initial position; s4, welding channel steel 6 between the steel beam 1 and the truss 2 node, and connecting the truss 2 with the steel beam 1; and S5, after the truss 2 is reinforced, leveling and waterproofing are carried out on the top of the concrete warehouse 4. The above structure provides an improvement to the problems in the prior art. In the prior art, since the truss 2 is arranged inside the concrete warehouse, when the truss 2 needs to be maintained, an operator needs to enter the concrete warehouse for operation. And the dust in the warehouse is large, lighting and ventilation are not generated, the construction difficulty is large, the maintenance is inconvenient, the maintenance cost is high, the labor intensity is high, and the efficiency is low. Therefore, the invention provides improvement based on a completely different thought from the prior art, so that the truss 2 can be maintained outside the concrete warehouse without personnel entering the concrete warehouse, therefore, the problems in the prior art do not exist, the construction safety of the personnel is ensured, the labor intensity is reduced, and the maintenance efficiency is improved. When maintenance is carried out, firstly, a steel beam is manufactured and hoisted to the position of the top of the warehouse, and the steel beam is vertical to the original truss; chiseling an opening at the intersection of the steel beam and the truss, connecting the truss positioned below with the steel by using a steel strand, tensioning, taking the steel beam as a stress fulcrum, and forming upward tension on the truss when the steel strand is tightened so as to restore the sunk truss to the initial level; after the sunk truss recovers the original shape, fixing two ends of the steel strand by using a special clamp, applying a positioning force to the steel beam and the truss 2 by using the steel strand at the moment, enabling the truss 2 not to sink, and then welding channel steel between the steel beam and truss nodes, so that the truss and the steel beam are ensured to be reliably connected; and after the warehouse top truss is reinforced, leveling and waterproofing the warehouse top. The method for repairing the truss outside the concrete warehouse has simple steps, can be used for reinforcing and rectifying the truss by adding the steel beam on the top of the warehouse and utilizing the connecting and positioning functions of the steel beam and the steel strand outside the warehouse without dismantling the original warehouse top structure in consideration of construction feasibility, and treating the joint cracks, so that the truss meets the design requirement and the use requirement again, the structure safety is ensured, the truss does not need to enter the warehouse for maintenance, and the construction is convenient.
And after the steel strand 3 is tensioned to restore the sunk truss 2 to the initial position, fixing the two ends of the steel strand 3 by using a special clamp 7 to prevent the steel strand 3 from loosening. Like this, because girder steel rigidity, steel strand wires are to truss 2 back of pulling up to the position, fixed steel strand wires, also be exactly fixed girder steel and truss 2's relative position, then can be to welding channel-section steel 6 between girder steel 1 and the truss 2 node, realize girder steel 1 and truss 2's reliable connection, realize truss 2 location again.
The protective sleeve 5 is sleeved on the part, in contact with the steel beam 1, of the steel strand 3, and the lower protective sleeve 8 is sleeved on the part, in contact with the truss 2, of the steel strand 3. Like this, go up the setting of protective sheath and lower protective sheath, because girder steel and truss 2 are heavier, in order to prevent that steel strand wires and truss and girder steel combination department from wearing and tearing, set up metal material's protective sheath, like this, effectively protect the safety in the work progress.
When the steel beam 1 is hoisted to the top of the concrete warehouse 4 for placement, the end part of the steel beam 1 is clamped in the clamping groove at the upper part of the concrete warehouse 4 or welded with the embedded steel bar at the upper part of the concrete warehouse 4. Therefore, after the steel beam is arranged, the steel beam needs to be welded with the truss and then serves as a part of the supporting truss, so that the steel beam needs to be positioned, and the method can reliably realize the positioning of the steel beam and avoid the shifting and falling. The stability of the truss after welding is effectively guaranteed, and the use safety of the concrete warehouse is improved.
The invention also relates to a concrete warehouse external truss repairing structure which is simple in structure, can be used for reinforcing and rectifying the truss by taking construction feasibility into consideration on the basis of not dismantling the original warehouse top structure, and treating node cracks by adding a steel beam on the upper part of the warehouse top and utilizing the connecting and positioning functions of the steel beam and the steel strand outside the warehouse, so that the truss meets the design requirement and the use requirement again, the structure safety is guaranteed, the truss repairing structure does not need to enter the warehouse for maintenance, and the construction is convenient.
The structure is restoreed to outer truss of concrete storehouse include girder steel 1, steel strand wires 3, girder steel 1 sets up to the structure that can place at 4 storehouses tops of concrete storehouse, girder steel 1 arranges with 2 vertical arrangement of truss in the 4 storehouses of concrete storehouse, steel strand wires 3 sets up to the trompil that can pass girder steel 1 and the storehouse roof 9 of 2 crossing lower parts of truss and walk around truss 2 and the structure of girder steel 1. Like this, because girder steel rigidity, steel strand wires are to truss 2 back of pulling up to the position, fixed steel strand wires, also be exactly fixed girder steel and truss 2's relative position, then can be to welding channel-section steel 6 between girder steel 1 and the truss 2 node, realize girder steel 1 and truss 2's reliable connection, realize truss 2 location again.
Concrete storehouse outer truss repair structure still include protective sheath 5 and lower protective sheath 6, go up protective sheath 5 and protective sheath 8 down and be the steel pipe protective sheath, go up protective sheath 5 and protective sheath 8 down and all set up to be the structure of U font. The steel strand 3 with the position suit of girder steel 1 contact go up protective sheath 5, go up protective sheath 5 and clamp at 1 upper portion position of girder steel, the position suit protective sheath 8 down of steel strand 3 and truss 2 contact, lower protective sheath 8 clamps at truss 2 lower part position. Like this, go up the setting of protective sheath and lower protective sheath, because girder steel and truss 2 are heavier, in order to prevent that steel strand wires and truss and girder steel combination department from wearing and tearing, set up metal material's protective sheath, like this, effectively protect the safety in the work progress.
The structure is restoreed to truss outside concrete storehouse still include special fixture 7, special fixture 7 sets up to can be fixed 3 both ends of steel strand wires and prevent the not hard up structure of steel strand wires 3.
The invention provides an improvement on the concrete warehouse external truss repairing method and structure, aiming at the problems in the prior art. In the prior art, because the truss is arranged inside the concrete warehouse, when the truss needs to be maintained, an operator needs to enter the interior of the concrete warehouse to operate. And the dust in the warehouse is large, lighting and ventilation are not generated, the construction difficulty is large, the maintenance is inconvenient, the maintenance cost is high, the labor intensity is high, and the efficiency is low. Therefore, the invention provides improvement based on a completely different thought from the prior art, so that the truss can be maintained outside the concrete warehouse without entering the concrete warehouse by personnel, the problems in the prior art are avoided, the construction safety of the personnel is guaranteed, the labor intensity is reduced, and the maintenance efficiency is improved. When maintenance is carried out, firstly, a steel beam is manufactured and hoisted to the position of the top of the warehouse, and the steel beam is vertical to the original truss; drilling a hole on a warehouse top plate at the intersection of a steel beam and a truss, connecting the truss positioned below with steel by using a steel strand, tensioning, taking the steel beam as a stress fulcrum, and forming upward tension on the truss when the steel strand is tightened so as to restore the sunk truss to the initial level; after the sunk truss is restored to the original shape, fixing two ends of the steel strand by using a special clamp, applying a positioning force to the steel beam and the truss by using the steel strand at the moment, enabling the truss not to sink, and then welding channel steel between the steel beam and truss nodes, so that the truss and the steel beam are ensured to be reliably connected; and after the warehouse top truss is reinforced, leveling and waterproofing the warehouse top. The method and the structure for repairing the truss outside the concrete warehouse have low cost, can add the steel beam on the upper part of the warehouse top by considering the construction feasibility on the basis of not removing the original warehouse top structure, and utilize the connecting and positioning functions of the steel beam and the steel strand outside the warehouse to reinforce and correct the truss and treat the joint crack, so that the truss meets the design requirement and the use requirement again, the structure safety is ensured, the truss does not need to enter the warehouse for maintenance, and the construction is convenient.
The present invention has been described in connection with the accompanying drawings, and it is to be understood that the invention is not limited to the specific embodiments disclosed, but is intended to cover various modifications, changes and equivalents of the embodiments of the invention, and its application to other applications without departing from the spirit and scope of the invention.
Claims (10)
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| CN202110557386.6A CN113250484A (en) | 2021-05-21 | 2021-05-21 | Concrete warehouse external truss repairing method and concrete warehouse external truss repairing structure |
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2021
- 2021-05-21 CN CN202110557386.6A patent/CN113250484A/en active Pending
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|---|---|---|---|---|
| CH251598A (en) * | 1944-12-19 | 1947-11-15 | Couvy Claire | Hydrocarbon tank with roof reinforcement device. |
| FR2563557A1 (en) * | 1984-04-26 | 1985-10-31 | Gary Jean Pierre | Method for converting a truss and means for implementing this method |
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Application publication date: 20210813 |