WO2022193598A1 - 回顶支撑结构及回顶支撑结构施工方法 - Google Patents
回顶支撑结构及回顶支撑结构施工方法 Download PDFInfo
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- WO2022193598A1 WO2022193598A1 PCT/CN2021/119890 CN2021119890W WO2022193598A1 WO 2022193598 A1 WO2022193598 A1 WO 2022193598A1 CN 2021119890 W CN2021119890 W CN 2021119890W WO 2022193598 A1 WO2022193598 A1 WO 2022193598A1
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- Prior art keywords
- column
- jacking
- roof
- support
- returning
- Prior art date
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- 238000010276 construction Methods 0.000 title abstract description 39
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 96
- 239000010959 steel Substances 0.000 claims abstract description 96
- 238000000034 method Methods 0.000 claims abstract description 21
- 238000003825 pressing Methods 0.000 claims description 13
- 230000002787 reinforcement Effects 0.000 claims description 8
- 239000011440 grout Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 description 15
- 230000003014 reinforcing effect Effects 0.000 description 9
- 238000003466 welding Methods 0.000 description 6
- 229910000851 Alloy steel Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Classifications
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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
- E04G25/00—Shores or struts; Chocks
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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
- E04G25/00—Shores or struts; Chocks
- E04G2025/003—Supports therefor, e.g. tripods
-
- 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
- E04G25/00—Shores or struts; Chocks
- E04G2025/006—Heads therefor, e.g. pivotable
Definitions
- the invention relates to the field of building construction, in particular to a roof-back support structure and a construction method for the roof-back support structure.
- the development of steel structures is rapid, and the construction of large-span steel structures adopts the lifting bracket method, and the reaction force at the bottom of the lifting frame or the tire frame increases with the increase of the weight of the lifting structure.
- the bearing capacity of the bottom structure of the long-span steel structure is weak.
- the lifting frame needs to be supported by the top.
- the methods for roof back support mainly include adding reinforcement of the bottom concrete beam or floor slab and adding a steel column at the bottom of the concrete beam.
- the cost of adding steel bars is high. If the steel bars are too dense, it will lead to construction difficulties such as binding and vibrating. low sex.
- the present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the present invention proposes a roof-returning support structure, which can ensure that the roof-returning column presses the top of the steel structure tightly during the construction process, thereby improving the safety of construction.
- the invention also proposes a construction method of the roof-returning support structure.
- the roof-back support structure according to the embodiment of the first aspect of the present invention is used for supporting a steel structure, and the roof-back support structure includes:
- the top back column is used to back up the top of the steel structure
- a jacking node the jacking node is connected to the back-lifting column, the jacking node is located below the back-lifting column, and the jacking node is used to support the back-lifting column and make the back-lifting column top Tighten the top of the steel structure;
- the top-return base which is connected to the top-return pillar, the top-return base is located below the top-return pillar, and the top-return base is used for connecting with the bottom of the steel structure .
- the roof-returning support structure has at least the following beneficial effects: the jacking node provides a supporting force for the roof-returning column; It is ensured that the top of the steel structure is pressed against the top of the steel structure during the construction process, and the safety of the construction is improved. In addition, the top-tight joint disperses the pressure of the back-up column on the bottom of the steel structure, which can prevent the back-up column from causing damage to the bottom of the steel structure.
- the back-up abutment increases the contact area between the bottom of the back-up column and the bottom of the steel structure, which has a dispersing effect on the pressure of the back-up column on the bottom of the steel structure, and can prevent the pressure of the back-up column from directly acting on the bottom of the steel structure and affecting the steel structure. damage to the bottom.
- the jacking node includes a connector and a plurality of jacking supports, the connector is supported below the lift-back column, and the connector is along a distance away from the lift-back column. extending in the direction, the pressing support member is connected with the connecting member, and the pressing supporting member is supported below the connecting member.
- the connecting member includes a plurality of connecting parts and a plurality of supporting parts, the connecting parts are connected with the lifting column, and the connecting parts extend along the axial direction of the lifting column, so
- the support part is connected with the connection part, the extension direction of the support part is perpendicular to the extension direction of the connection part, the pressing support is located below the support part, and the pressing support is used for supporting the support part.
- the top return post is provided with a plurality of bottom slots, the bottom slots are located at an end of the top return post connected to the connecting portion, and the connecting portion is arranged to be inserted into the bottom in the slot.
- the jacking support includes a jacking base and a telescopic portion, the jacking base is supported below the telescopic portion, and the telescopic portion is supported below the connecting member, so The telescopic portion can expand and contract in the up-down direction relative to the pressing base.
- the top-returning support structure further includes a top abutting member, the top abutting member is connected to the top-returning column and is used for pressing one end of the top of the steel structure, and the top abutting member
- the area of the cross section of the holding piece is larger than the area of the cross section of the top back column, and the top abutting piece is used for abutting the top of the steel structure.
- the roof-returning support structure further includes a plurality of reinforcement ribs, and the reinforcement ribs are connected between the roof-receiving member and the roof-returning column.
- the top return post is provided with a plurality of top slots, the top slots are located at an end of the return post connected to the top abutting member, and the reinforcing rib can be inserted into the top in the top slot.
- the connecting member further includes a bottom supporting member, the bottom supporting member is connected to the re-roofing base, and the cross-sectional area of the bottom supporting member is larger than that of the re-routing column. area of the cross section.
- the roofing base includes a pouring layer and a refilling layer, the refilling layer is connected to the capping column, and the pouring layer is located below the refilling layer.
- the method includes:
- top of the top of the steel structure is pressed against the top of the top of the steel structure by the top of the top of the top-back base;
- the method for constructing a roof-returning support structure has at least the following beneficial effects: the roof-returning column first pushes the top of the steel structure; The filling is connected to the top back abutment at the bottom, which can ensure that the back top column is tight against the steel structure during the construction process.
- the height of the return-top abutment does not need to be precisely set, which reduces the difficulty of construction and improves the convenience of construction.
- filling the gap between the back-up base and the bottom of the back-up column includes: pouring grouting material into the gap between the back-up column and the back-up base.
- FIG. 1 is a schematic diagram of a back-to-top support structure according to an embodiment of the present invention.
- FIG. 2 is an exploded schematic diagram of a top-back support structure according to an embodiment of the present invention
- FIG. 3 is a partial schematic diagram of the bottom of the top-back support structure according to the embodiment of the present invention.
- the azimuth description such as the azimuth or position relationship indicated by up, down, front, rear, left, right, etc.
- the azimuth description is based on the azimuth or position relationship shown in the drawings, only In order to facilitate the description of the present invention and simplify the description, it is not indicated or implied that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
- a plurality of meanings means two or more, greater than, less than, exceeding, etc. are understood as not including this number, above, below, within, etc. are understood as including this number.
- words such as setting, installation, connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the above-mentioned words in the present invention in conjunction with the specific content of the technical solution.
- a lift-back support structure which includes a lift-back column 100 , a jacking node 200 and a lift-back base 300 .
- the jacking node 200 is connected to the top back column 100, the jacking node 200 is located below the back top column 100, and the jacking node 200 is used to support the back top column 100 and make the back top column 100 press the top 410 of the steel structure;
- the base 300 is located below the back-roofing column 100 , and the back-roofing base 300 includes a pouring layer 310 and a refilling layer 320 .
- the lift-back column 100 is a column structure used for the top 410 of the lift-back steel structure.
- the lift-back column 100 can be made of various steel alloys.
- the lift-back column 100 made of steel alloy is light in weight and has good strength.
- the jacking node 200 can be connected to the jacking post 100 by welding or screwing.
- the jacking node 200 may be a connecting structure composed of a plurality of steel columns, tire frames, jacks or other supporting structures for supporting the return jacking column 100 .
- a plurality of steel columns, tire frames, jacks or other supporting structures are connected to the surrounding of the lifting column 100, and a plurality of steel columns, tire frames, jacks or other supporting structures are connected to the bottom 420 of the steel structure, which are the lifting columns 100 provides a supporting force, and by setting the support height of the jacking node 200 so that the jacking column 100 presses against the top 410 of the steel structure, it can ensure that the jacking pillar 100 is pressed against the top 410 of the steel structure during the construction process, and the construction is improved. security.
- the jack-up joint 200 disperses the pressure of the lift-back column 100 on the bottom 420 of the steel structure, which can prevent the lift-back column 100 from causing damage to the bottom 420 of the steel structure.
- the lift-back base 300 is connected to the bottom 420 of the steel structure, and is arranged at the lower end connected to the lift-back column 100 to provide a jack-up support for the lift-back column 100 .
- the back-up base 300 increases the contact area between the bottom of the back-up column 100 and the bottom of the steel structure, has a dispersing effect on the pressure of the back-up column 100 on the bottom of the steel structure, and can prevent the pressure of the back-up column 100 from directly acting on the bottom of the steel structure 420 and cause damage to the bottom 420 of the steel structure.
- the back-to-ceiling base 300 can be formed by pouring materials such as concrete and grouting material, wherein the grouting material is a non-shrinkage grouting material in the related art, and its composition and application are well-known technologies.
- the roof-returning support structure in the embodiment of the present invention has a simple structure of the roof-returning column 100 , the jack-up joint 200 and the roof-returning base 300 , and the construction amount is large. It is small, convenient for construction, and saves the use of a large amount of steel bars.
- the return top column 100 and the top tightening node 200 can be recycled and have good economy.
- the construction method of the roof-returning support structure in the embodiment of the present invention is as follows: the roof-returning base 300 is constructed at the set position of the bottom 420 of the steel structure; , after the top back column 100 is placed on the back top base 300, there is a gap with a reserved height between the top back column 100 and the top 410 of the steel structure; After the top 410 of the structure, there is a gap with a reserved height between the roofing base 300 and the roofing column 100; finally, the gap between the roofing column 100 and the roofing base 300 is filled by pouring concrete or grouting material.
- the top back column 100 can be supported by the top joint 200 to hold the top 410 of the steel structure during the construction process, and then connected to the bottom back top base 300 by filling concrete or grouting material, which can ensure the top back during the construction process.
- Column 100 top tight steel structure. Since the return-to-roof base 300 and the return-to-roof column 100 are connected by pouring concrete or grouting to fill the reserved gap, the height of the return-to-roof base 300 does not need to be set precisely, compared to the method of directly adding steel columns in the prior art , the precision setting of the reserved embedded section is reduced, thereby reducing the construction difficulty and improving the convenience of construction.
- the jacking node 200 includes a connector 210 and a plurality of jacking supports 220 , the connector 210 is located below the back-up column 100 , and the connector 210 is used for supporting Back to the top column 100 , the connector 210 extends in a direction away from the top back column 100 , the jacking support 220 is connected to the connector 210 , the jacking support 220 is located below the connector 210 , and the jacking support 220 is used to support the connection Piece 210.
- the connecting piece 210 may be a plate-like structure or other structure made of steel alloy or other high-strength materials, and the connecting piece 210 extends toward the surrounding of the lift-back column 100 in a direction away from the lift-back column 100 , so as to support the lift tightly.
- the member 220 can support the connecting member 210 .
- the return jacking column 100 is pressed against the top 410 of the steel structure, which has a simple structure and is easy to implement.
- the connecting member 210 includes a plurality of connecting parts 211 and a plurality of supporting parts 212 , the connecting parts 211 are connected with the lift-back column 100 , and the connecting part 211 is along the lift-back column 100 .
- the support part 212 is connected with the connection part 211, the extension direction of the support part 212 is perpendicular to the extension direction of the connection part 211, the pressing support 220 is located below the supporting part 212, and the pressing support 220 is used for supporting Support part 212 .
- the support portion 212 is perpendicular to the connection portion 211 , and the force distribution of the connection member 210 is more reasonable, preventing the connection member 210 from being completely or broken due to stress concentration.
- the number of the supporting parts 212 is the same as the number required for the jacking supports 220 .
- the plurality of connecting portions 211 and the plurality of supporting portions 212 are symmetrically arranged with respect to the central axis of the return top column 100 , which can make the force distribution of the connecting member 210 more reasonable.
- the top return column 100 is provided with a plurality of bottom slots 110 , and the bottom slot 110 is located at one end of the return top column 100 connected to the connecting portion 211 , and the connecting portion 211 is disposed at the in the bottom slot 110.
- the connecting portion 211 is inserted into the bottom slot 110 at the corresponding position, and then connected to the top back column 100 by welding or the like.
- the connecting portion 211 is connected to the interior of the lift-back column 100 , so that the connecting member 210 has a more stable bearing capacity.
- the connecting part 211 can be connected to the lift-back column 100 by welding. After the welding seam between the connection part 211 and the connection part 211 is separated by high temperature, the lift-back column 100 can be recycled again. , the economy is high.
- the jacking support 220 includes a jacking base 221 and a telescopic portion 222 , the jacking base 221 is supported below the telescopic portion 222 , and the telescopic portion 222 is supported below the connecting member 210
- the telescopic portion 222 can be extended and retracted in the up-down direction relative to the top-up base 221 to adjust the support height of the top-up support member 220 .
- the telescopic part 222 can be telescopic by means of full oil cylinder telescopic, rope row telescopic, single-cylinder bolt telescopic and so on.
- the support point of the jacking support 220 can be set at a lower height first, and after the jacking column 100 is connected with the connecting element 210, the jacking support 220 is raised to make the jacking support 220 rise.
- the top column 100 is tightly supported on the top 410 of the steel structure, which can improve the convenience of construction.
- the jacking support 220 can be selected as a support structure with a telescopic mechanism, such as various types of jacks, hydraulic support rods and other devices.
- the top-returning support structure further includes a top abutting member 120, and the top abutting member 120 is connected to the top-returning column 100 for pressing one end of the top of the steel structure.
- the area of the cross section of the resisting member 120 is larger than the area of the cross-sectional area of the lift-back column 100 , and the top resisting member 120 is used for resisting the top 410 of the steel structure.
- the top abutting member 120 can increase the contact area between the lift-back column 100 and the top of the steel structure, can reduce the local pressure of the lift-back column 100 on the top 410 of the steel structure, and prevent the top 410 of the steel structure from being damaged by the lift-back column 100 .
- the top abutting member 120 may be a plate-like structure made of various steel materials or other materials with high strength.
- the roof-returning support structure further includes a plurality of reinforcement ribs 130 , and the reinforcement ribs 130 are connected between the roof abutting member 120 and the roof-returning column 100 .
- the reinforcing ribs 130 can increase the connection strength between the top resisting member 120 and the lift-back column 100 , so as to prevent the top resisting member 120 from being broken due to excessive lift-back pressure in the lift-back column 100 .
- the top back column 100 is provided with a plurality of top slots 140 , the top sockets 140 are located at one end of the top back column 100 connected to the top abutting member 120 , and the reinforcing rib 130 is disposed in the top socket 140 .
- the reinforcing rib 130 is inserted into the top slot 140 at the corresponding position, and then connected to the return column 100 by welding or the like.
- the reinforcing rib 130 is connected to the inside of the lift-back column 100 , so that the load bearing of the connecting member 210 is more stable. Referring to FIG.
- a plurality of reinforcing ribs 130 can be connected to form a connection node, so that it is more convenient for the plurality of reinforcing ribs 130 to be inserted into the top slot 140 at the same time.
- the reinforcing rib 130 can be connected to the return pillar 100 by welding, so as to ensure the stability of the connection.
- the connector 210 further includes a bottom support 230 , the bottom support 230 is connected to the back-to-top base 300 , and the cross-sectional area of the bottom support 230 is larger than the back-to-top The area of the cross-section of the column 100 .
- the bottom support 230 can increase the contact area between the jacking node 200 and the jacking base 300 , so as to reduce the local pressure of the jacking column 100 on the bottom 420 of the steel structure and prevent the bottom 420 of the steel structure from being damaged by the jacking column 100 . .
- the re-roofing base 300 includes a pouring layer 310 and a re-injection layer 320 , the re-injection layer 320 is connected to the re-roofing column 100 , and the pouring layer 310 is located on the re-injection layer 320 below, the pouring layer 310 is composed of concrete or grout, and the refill layer 320 is composed of grout. Since the structure composed of the grouting material has no shrinkage characteristics, the recharge layer 320 will not shrink. After the top 410 of the steel structure is tightened by the top back column 100, the back top column 100 will be placed on the top 410 of the steel structure in the subsequent construction process. There is no gap between them due to the retraction of the top-back base 300, which improves the stability of the top-back support structure.
- An embodiment of the present invention also proposes a method for connecting a back-roof support structure, including:
- the top 410 of the steel structure is pressed against the top 410 of the steel structure on the top of the top back base 300;
- the way of constructing the bottom 420 of the steel structure back to the top abutment 300 may be formed by pouring concrete or grouting.
- the lift-back column 100 is a column-like structure used for lift-back to support the roof 410 of the steel structure.
- the return pillar 100 may be made of various steel alloys.
- the jack-back pillar 100 and the jack-up node 200 can be prefabricated in a factory.
- a roofing base 300 of a suitable size is constructed where the steel structure needs to be supported.
- the roofing base 300 may be rectangular in shape, which is convenient for fixed mold construction.
- the cross-sectional area of the lift-back base 300 is set larger than that of the lift-back column 100 to increase the contact area between the lift-back column 100 and the bottom of the steel structure and prevent the bottom 420 of the steel structure from being damaged due to excessive local pressure.
- the height of the lift-back base 300 is set to be smaller than the height difference between the distance from the top 410 to the bottom of the steel structure and the length of the lift-back column 100 , so as to reserve a margin for the installation of the lift-back column 100 .
- the construction of the lift-back base 300 also facilitates the positioning of the lift-back column 100 .
- the roof-returning column 100 is pressed against the top 410 of the steel structure above the roof-returning base 300.
- the node 200 supports the back-lifting column 100, and by setting the support height of the back-lifting node 200, the top of the back-lifting column 100 can be pressed against the top 410 of the steel structure.
- Jacking node 200 The jacking node 200 may be a connecting structure for supporting the return jacking column 100 composed of a plurality of steel columns, tire frames, jacks or other supporting structures.
- the jacking node 200 can be set as a support structure that can be extended and retracted in the up and down direction, for example, by using structures such as jacks, hydraulic support rods, etc.
- the top 410 of the steel structure is pushed up against the top 410 of the steel structure by the lifting of the supporting piece 220, so as to improve the convenience of construction.
- the jacking node 200 does not need to be removed, and the jacking node 200 can disperse the pressure of the jacking post 100 on the jacking base 300 .
- a margin is reserved between the lift-back base 300 and the lift-back column 100. Therefore, after the lift-back column 100 is tightened against the top 410 of the steel structure, there is a gap between the lift-back base 300 and the lift-back column 100. Filling, so that the lift-back column 100 and the lift-back base 300 are connected together.
- the method of filling the gap between the back-up base 300 is also to pour concrete or grouting material into the gap between the back-up column 100 and the back-up base 300 , wherein the structure formed by the grouting material does not have flexibility, which can prevent it from interfering with the structure.
- the surface of the roofing base 300 contacted by the roofing column 100 shrinks, so as to avoid loosening of the roofing column 100 in the later stage of construction, and increase the stability of the lifting column 100 against the top of the steel structure.
- the roof-back column 100 first presses the top 410 of the steel structure, and a height is reserved between the roof-back base 300 and the roof-back column 100, and the roof-back column 100 is connected to the bottom by filling
- the back-to-ceiling base 300 is connected to ensure that the back-to-ceiling column 100 is tight against the steel structure during the construction process.
- the lift-back base 300 and the lift-back column 100 are connected by filling gaps, the height of the lift-back base 300 does not need to be precisely set, which reduces the difficulty of construction and improves the convenience of construction.
Abstract
本发明公开了一种回顶支撑结构及回顶支撑结构施工方法。本发明的回顶支撑结构包括顶柱、顶紧节点与回顶基台。通过设定顶紧节点的支撑高度能够使回顶柱抵持住钢结构的顶部，能够保证回顶柱在施工过程中顶紧钢结构的顶部，提高了施工的安全性。回顶基台增加了回顶柱底部与钢结构底部的接触面积，对于回顶柱对钢结构底部的压力具有分散作用，能够防止回顶柱的压力直接作用于钢结构的底部而对钢结构的底部发生造成破坏。本发明的回顶支撑结构施工方法能够在施工过程中保证回顶柱顶紧钢结构，降低了施工难度，提升了施工的便利性。
Description
本发明涉及建筑施工领域，尤其涉及一种回顶支撑结构及回顶支撑结构施工方法。
钢结构发展快速，大跨度钢结构施工采用提升支架法施工，提升架或胎架底部反力随着提升结构的重量增大而增大。大跨度钢结构的底部结构承载能力弱，为了保证底部结构稳定与安全，需进行对提升架进行回顶支撑。目前，进行回顶支撑的方法主要有增加底部混凝土梁或楼板的配筋和增设一根钢立柱于混凝土梁底等方法。但增设钢筋的成本高，钢筋过密会导致绑扎、振捣等施工困难，适用性小；增设钢立柱耗费人工大，且需要预留嵌补段，钢立柱会存在松动，难以实现顶紧，安全性低。
发明内容
本发明旨在至少解决现有技术中存在的技术问题之一。为此，本发明提出一种回顶支撑结构，能够保证回顶柱在施工过程中顶紧钢结构的顶部，提高了施工的安全性。
本发明还提出一种回顶支撑结构的施工方法。
根据本发明的第一方面实施例的回顶支撑结构，用于支撑钢结构，所述回顶支撑结构，包括：
回顶柱，用于回顶所述钢结构的顶部；
顶紧节点，所述顶紧节点与所述回顶柱连接，所述顶紧节点位于所述回顶柱的下方，所述顶紧节点用于支撑所述回顶柱并使回顶柱顶紧所述钢结构的顶部；
回顶基台，所述回顶基台与所述回顶柱连接，所述回顶基台位于所述回顶柱的下方，所述回顶基台用于与所述钢结构的底部连接。
根据本发明实施例的回顶支撑结构，至少具有如下有益效果：顶紧节点为回顶柱提供支撑力，通过设定顶紧节点的支撑高度使回顶柱抵持住钢结构的顶部，能够保证回顶柱在施工过程中顶紧钢结构的顶部，提高了施工的安全性。此外，顶紧节点分散了回顶柱对于钢结构的底部的压力，可以防止回顶柱对钢结构的底部造成破坏。回顶基台增加了回顶柱底部与钢 结构底部的接触面积，对于回顶柱对钢结构底部的压力具有分散作用，能够防止回顶柱的压力直接作用于钢结构的底部而对钢结构的底部发生造成破坏。
根据本发明的一些实施例，所述顶紧节点包括连接件与多个顶紧支撑件，所述连接件支撑于所述回顶柱的下方，所述连接件沿远离所述回顶柱的方向延伸，所述顶紧支撑件与所述连接件连接，所述顶紧支撑件支撑于所述连接件的下方。
根据本发明的一些实施例，所述连接件包括多个连接部与多个支撑部，所述连接部与所述回顶柱连接，所述连接部沿回顶柱的轴向方向延伸，所述支撑部与所述连接部连接，所述支撑部的延伸方向垂直于所述连接部的延伸方向，所述顶紧支撑件位于所述支撑部的下方，所述顶紧支撑件用于支撑所述支撑部。
根据本发明的一些实施例，所述回顶柱设置有多个底部插槽，所述底部插槽位于所述回顶柱连接所述连接部的一端，所述连接部设置于插入所述底部插槽中。
根据本发明的一些实施例，所述顶紧支撑件包括顶紧底座与伸缩部，所述顶紧底座支撑于所述伸缩部的下方，所述伸缩部支撑于所述连接件的下方,所述伸缩部能够相对所述顶紧底座沿上下方向伸缩。
根据本发明的一些实施例，所述回顶支撑结构还包括顶部抵持件，所述顶部抵持件连接于所述回顶柱用于顶紧所述钢结构顶部的一端，所述顶部抵持件的横截面的面积大于所述回顶柱的横截面的面积，所述顶部抵持件用于抵持所述钢结构的顶部。
根据本发明的一些实施例，所述回顶支撑结构还包括多个加强肋，所述加强肋连接于所述顶部抵持件与所述回顶柱之间。
根据本发明的一些实施例，所述回顶柱设置有多个顶部插槽，所述顶部插槽位于所述回顶柱连接所述顶部抵持件的一端，所述加强肋能够插入所述顶部插槽中。
根据本发明的一些实施例，所述连接件还包括底部支撑件，所述底部支撑件与所述回顶基台连接，所述底部支撑件的横截面的面积大于所述回顶柱的横截面的面积。
根据本发明的一些实施例，所述回顶基台包括浇筑层与回灌层，所述回灌层与所述回顶柱连接，所述浇筑层位于所述回灌层下方。
根据本发明的第二方面实施例的回顶支撑结构施工方法，包括：
准备本发明的第一方面实施例中所述的回顶柱和顶紧节点；
在所述钢结构的底部设定位置建设所述回顶基台；
于所述回顶基台的上方使所述回顶柱顶紧所述钢结构的顶部；
填充所述回顶柱与所述回顶基台之间的间隙。
根据本发明实施例的回顶支撑结构施工方法，至少具有如下有益效果：回顶柱先顶紧钢结构的顶部，回顶基台与回顶柱之间预留设定高度，回顶柱通过填充与底部的回顶基台连接，能够在施工过程中保证回顶柱顶紧钢结构。此外，由于回顶基台与回顶柱是通过填充间隙实现连接的，回顶基台的高度不需要精确设置，降低了施工难度，提升了施工的便利性。
根据本发明的一些实施例，填充所述回顶基台与回所述顶柱底部之间的间隙包括：向所述回顶柱与所述回顶基台之间的间隙浇筑灌浆料。
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
下面结合附图和实施例对本发明做进一步的说明，其中：
图1为本发明实施例回顶支撑结构的示意图；
图2为本发明实施例回顶支撑结构的爆炸示意图；
图3为本发明实施例回顶支撑结构的底部局部示意图。
附图标记：
回顶柱100，底部插槽110，顶部抵持件120，加强肋130，顶部插槽140，顶紧节点200，连接件210，连接部211，支撑部212，顶紧支撑件220，顶紧底座221，伸缩部222，底部支撑件230，回顶基台300，浇筑层310，回灌层320，钢结构的顶部410，钢结构的底部420。
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，需要理解的是，涉及到方位描述，例如上、下、前、后、左、右等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
在本发明的描述中，多个的含义是两个以上，大于、小于、超过等理解为不包括本数，以上、以下、以内等理解为包括本数。本发明的描述中，除非另有明确的限定，设置、安装、连接等词语应做广义理解，所属技术领域技术人员可以结合技术方案的具体内容合理确定上 述词语在本发明中的具体含义。
本发明的描述中，参考术语“一个实施例”、“一些实施例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
参照图1，本发明的一实施例中提出一种回顶支撑结构，包括回顶柱100、顶紧节点200与回顶基台300。顶紧节点200与回顶柱100连接，顶紧节点200位于回顶柱100的下方，顶紧节点200用于支撑回顶柱100并使回顶柱100顶紧钢结构的顶部410；回顶基台300位于回顶柱100的下方，回顶基台300包括浇筑层310与回灌层320，回灌层320与回顶柱100连接，浇筑层310用于与钢结构的底部420连接。
其中，回顶柱100是用于回顶钢结构的顶部410的柱体结构，回顶柱100的材料可以是各类钢合金，钢合金制成的回顶柱100重量轻且具有良好的强度。顶紧节点200可以通过焊接、螺纹连接与回顶柱100连接。顶紧节点200可以是由多个钢柱、胎架、千斤顶或其他支撑结构组成的用于支撑回顶柱100的连接结构。具体地，多个钢柱、胎架、千斤顶或其他支撑结构连接于回顶柱100的四周，多个钢柱、胎架、千斤顶或其他支撑结构与钢结构的底部420连接，为回顶柱100提供支撑力，通过设定顶紧节点200的支撑高度使回顶柱100抵持住钢结构的顶部410，能够保证回顶柱100在施工过程中顶紧钢结构的顶部410，提高了施工的安全性。此外，顶紧节点200分散了回顶柱100对于钢结构的底部420的压力，可以防止回顶柱100对钢结构的底部420造成破坏。
回顶基台300与钢结构的底部420连接，并设置在连接于回顶柱100的下端，为回顶柱100提供顶紧支撑。回顶基台300增加了回顶柱100底部与钢结构底部的接触面积，对于回顶柱100对钢结构底部的压力具有分散作用，能够防止回顶柱100的压力直接作用于钢结构的底部420而对钢结构的底部420发生造成破坏。回顶基台300可以有混凝土、灌浆料等交材料浇筑形成，其中，灌浆料是相关领域中一种无收缩性能的灌浆材料，其成分和应用为公知技术。
本发明实施例中的回顶支撑结构，相对于增加钢结构的底部420的混凝土梁或楼板的配筋，回顶柱100、顶紧节点200以及回顶基台300的结构简单，施工量大幅小，施工方便，且节省了大量钢筋的使用，回顶柱100和顶紧节点200可以循环使用，具有良好的经济性。
此外，本发明实施例中的回顶支撑结构的施工方法如下：在钢结构的底部420设定位置建设回顶基台300；回顶基台300与回顶柱100之间预留设定高度，使回顶柱100放置于回 顶基台300上后，回顶柱100与钢结构的顶部410之间存在预留设定高度的间隙；由顶紧节点200支撑回顶柱100顶紧钢结构的顶部410后，回顶基台300与回顶柱100之间存在预留高度的间隙；最后通过浇筑混凝土或灌浆料的方式填充回顶柱100与回顶基台300之间的间隙。其中，回顶柱100在施工过程中可由顶紧节点200支撑顶紧钢结构的顶部410后，再通过填充混凝土或灌浆料与底部的回顶基台300连接，能够在施工过程中保证回顶柱100顶紧钢结构。由于回顶基台300与回顶柱100是通过浇筑混凝土或灌浆料填充预留间隙实现连接的，回顶基台300的高度不需要精确设置，相对于现有技术中直接增设钢立柱的方式，预留嵌补段的精度设置降低，从而降低了施工难度，提升了施工的便利性。
参照图1和图2，在本发明的一些实施例中，顶紧节点200包括连接件210与多个顶紧支撑件220，连接件210位于回顶柱100的下方，连接件210用于支撑回顶柱100，连接件210沿远离回顶柱100的方向延伸，顶紧支撑件220与连接件210连接，顶紧支撑件220位于连接件210的下方，顶紧支撑件220用于支撑连接件210。连接件210可以是由钢合金或其他具有高强度的材料制成的板状结构或其他结构，连接件210沿远离回顶柱100的方向向回顶柱100四周延伸出，以使顶紧支撑件220能够支撑连接件210。通过设定顶紧支撑件220的高度，使回顶柱100顶紧钢结构的顶部410，结构简单，易于实施。
参照图1和图2，在本发明的一些实施例中，连接件210包括多个连接部211与多个支撑部212，连接部211与回顶柱100连接，连接部211沿回顶柱100的轴向方向延伸，支撑部212与连接部211连接，支撑部212的延伸方向垂直于连接部211的延伸方向，顶紧支撑件220位于支撑部212的下方，顶紧支撑件220用于支撑支撑部212。支撑部212与连接部211垂直设置，连接件210的受力分布更合理，防止连接件210因应力集中发生完全或断裂。支撑部212的数量与顶紧支撑件220所需要的数量相同，支撑部212的数量及顶紧支撑件220的数量越多，回顶柱100在连接件210上的压力分布越分散。参照图2和图3，多个连接部211及多个支撑部212关于回顶柱100的中心轴对称设置，可以使连接件210的受力分布更合理。
参照图2和图3，在本发明的一些实施例中，回顶柱100设置有多个底部插槽110，底部插槽110位于回顶柱100连接连接部211的一端，连接部211设置于底部插槽110中。连接部211插入对应位置的底部插槽110中，再通过焊接等方式与回顶柱100连接，设置底部插槽110更方便连接件210与回顶柱100之间的连接定位。此外，连接部211连接于回顶柱100的内部，连接件210承载更稳定。
为了防止回顶柱100与连接件210发生松动，连接部211可以通过焊接与回顶柱100连 接，连接部211与连接部211的焊缝通过高温拆分后，回顶柱100可以再次回收使用，经济性高。
参照图3，在本发明的一些实施例中，顶紧支撑件220包括顶紧底座221与伸缩部222，顶紧底座221支撑于伸缩部222的下方，伸缩部222支撑于连接件210的下方,伸缩部222能够相对顶紧底座221沿上下方向伸缩，以调节顶紧支撑件220的支撑高度。伸缩部222实现伸缩的方式可以是全油缸伸缩、绳排伸缩、单缸插销伸缩等方式。由于伸缩部222能够沿上下方向伸缩，顶紧支撑件220的支撑点可以先设置在一个较低的高度，回顶柱100与连接件210连接后，再通过顶紧支撑件220升高使回顶柱100顶紧钢结构的顶部410，可以提升施工的便利性。顶紧支撑件220可以选择为具有伸缩机构的支撑结构，例如各类千斤顶、液压支撑杆等装置。
参照图1和图2，在本发明的一些实施例中，回顶支撑结构还包括顶部抵持件120，顶部抵持件120连接于回顶柱100用于顶紧钢结构顶部的一端，顶部抵持件120的横截面的面积大于回顶柱100的横截面的面积，顶部抵持件120用于抵持钢结构的顶部410。顶部抵持件120能够增加回顶柱100与钢结构顶部的接触面积，可以减少回顶柱100对钢结构的顶部410的局部压力，防止钢结构的顶部410被回顶柱100破坏。顶部抵持件120可以是由各类钢材料或者其他具有高强度的材料制成的板状结构。
参照图1和图2，在本发明的一些实施例中，回顶支撑结构还包括多个加强肋130，加强肋130连接于顶部抵持件120与回顶柱100之间。加强肋130可以增加顶部抵持件120与回顶柱100之间的连接强度，避免回顶柱100中的回顶压力过大导致顶部抵持件120发生断裂。
在本发明的一些实施例中，回顶柱100设置有多个顶部插槽140，顶部插槽140位于回顶柱100连接顶部抵持件120的一端，加强肋130设置于顶部插槽140中。加强肋130插入对应位置的顶部插槽140中，再通过焊接等方式与回顶柱100连接，设置顶部插槽140更方便连接件210与回顶柱100之间的连接定位。此外，加强肋130连接于回顶柱100的内部，连接件210承载更稳定。参照图2，多个加强肋130可连接为一个连接节点，以更方便多个加强肋130便于同时插入顶部插槽140中。加强肋130可以通过焊接与回顶柱100连接，以保证连接的稳定性。
参照图1和图2，在本发明的一些实施例中，连接件210还包括底部支撑件230，底部支撑件230与回顶基台300连接，底部支撑件230的横截面的面积大于回顶柱100的横截面的面积。底部支撑件230能够增加顶紧节点200与回顶基台300之间的接触面积，以减少回顶柱100对钢结构的底部420的局部压力，防止钢结构的底部420被回顶柱100破坏。
参照图1和图3，在本发明的一些实施例中，回顶基台300包括浇筑层310与回灌层320，回灌层320与回顶柱100连接，浇筑层310位于回灌层320下方，浇筑层310由混凝土或灌浆料组成，回灌层320由灌浆料组成。由于灌浆料组成的结构具有无收缩性的特性，回灌层320不会发生收缩，回顶柱100顶紧钢结构的顶部410后，回顶柱100在后续施工过程中于钢结构的顶部410之间不会因为回顶基台300收缩而出现间隙，提升了回顶支撑结构的稳定性。
本发明的实施例中还提出了一种回顶支撑结构连接方法，包括：
准备好上述实施例中的回顶柱100和顶紧节点200，
在钢结构的底部420设定位置建设回顶基台300；
于回顶基台300的上方使回顶柱100顶紧钢结构的顶部410；
填充回顶柱100与回顶基台300之间的间隙。
其中，钢结构的底部420建设回顶基台300的方式可以是浇筑混凝土或灌浆料形成。回顶柱100是用于回顶支撑钢结构的顶部410的柱状结构。回顶柱100可以由各类钢合金制成。回顶柱100和顶紧节点200可以在工厂预制加工形成。
参照图1至图3，在钢结构需要进行回顶支撑的地方建设好合适尺寸的回顶基台300，回顶基台300的形状可以是矩形，方便定模施工。回顶基台300的截面的面积设置为大于回顶柱100的截面的面积，以增加回顶柱100与钢结构底部的接触面积，防止钢结构的底部420因局部压力过大发生破坏。回顶基台300的高度设置为小于钢结构的顶部410到底部之间的距离与回顶柱100的长度之间的高度差，以为回顶柱100的安装预留余量。此外，建设回顶基台300也更方便回顶柱100的定位。
建设好回顶基台300后，在回顶基台300的上方使回顶柱100顶紧钢结构的顶部410，具体地，回顶柱100的底端可以连接一个顶紧节点200，顶紧节点200支撑回顶柱100，通过设定顶紧节点200的支撑高度，可以使回顶柱100的顶部顶紧钢结构的顶部410。顶紧节点200顶紧节点200可以是由多个钢柱、胎架、千斤顶或其他支撑结构组成的用于支撑回顶柱100的连接结构。其中，顶紧节点200可以设置为可沿上下方向进行伸缩的支撑结构，例如利用千斤顶、液压支撑杆等结构，顶紧支撑件220的支撑点可以先设置在一个较低的高度，回顶柱100与连接件210连接后，再通过顶紧支撑件220升高使回顶柱100顶紧钢结构的顶部410，提升施工的便利性。顶紧节点200不需要拆除，顶紧节点200能够分散回顶柱100对于回顶基台300的压力。
回顶基台300与回顶柱100之间预留有余量，因此回顶柱100顶紧钢结构的顶部410后， 回顶基台300与回顶柱100之间存在间隙，对间隙进行填充，以使回顶柱100与回顶基台300连接在一起。
填充回顶基台300之间的间隙的方法也是向回顶柱100与回顶基台300之间的间隙浇筑混凝土或灌浆料，其中由灌浆料浇筑成型的结构不具备伸缩性，能够防止与回顶柱100接触的回顶基台300表面发生收缩，避免回顶柱100后期施工发生松动，增加回顶柱100顶紧钢结构顶部的稳定性。
本发明实施例中的回顶支撑结构施工方法，回顶柱100先顶紧钢结构的顶部410，回顶基台300与回顶柱100之间预留高度，回顶柱100通过填充与底部的回顶基台300连接，能够在施工过程中保证回顶柱100顶紧钢结构。此外，由于回顶基台300与回顶柱100是通过填充间隙实现连接的，回顶基台300的高度不需要精确设置，降低了施工难度，提升了施工的便利性。
上面结合附图对本发明实施例作了详细说明，但是本发明不限于上述实施例，在所属技术领域普通技术人员所具备的知识范围内，还可以在不脱离本发明宗旨的前提下作出各种变化。此外，在不冲突的情况下，本发明的实施例及实施例中的特征可以相互组合。
Claims (10)
- 回顶支撑结构，其特征在于，用于支撑钢结构，所述回顶支撑结构，包括：回顶柱，用于回顶所述钢结构的顶部；顶紧节点，所述顶紧节点与所述回顶柱连接，所述顶紧节点位于所述回顶柱的下方，所述顶紧节点用于支撑所述回顶柱并使所述回顶柱顶紧所述钢结构的顶部；回顶基台，所述回顶基台与所述回顶柱连接，所述回顶基台位于所述回顶柱的下方，所述回顶基台用于与所述钢结构的底部连接。
- 根据权利要求1所述的回顶支撑结构，其特征在于，所述顶紧节点包括连接件与多个顶紧支撑件，所述连接件支撑于所述回顶柱的下方，所述连接件沿远离所述回顶柱的方向延伸，所述顶紧支撑件与所述连接件连接，所述顶紧支撑件支撑于所述连接件的下方。
- 根据权利要求2所述的回顶支撑结构，其特征在于，所述连接件包括多个连接部与多个支撑部，所述连接部与所述回顶柱连接，所述连接部沿回顶柱的轴向方向延伸，所述支撑部与所述连接部连接，所述支撑部的延伸方向垂直于所述连接部的延伸方向，所述顶紧支撑件位于所述支撑部的下方，所述顶紧支撑件用于支撑所述支撑部。
- 根据权利要求3所述的回顶支撑结构，其特征在于，所述回顶柱设置有多个底部插槽，所述底部插槽位于所述回顶柱连接所述连接部的一端，所述连接部设置于所述底部插槽中。
- 根据权利要求2所述的回顶支撑结构，其特征在于，所述顶紧支撑件包括顶紧底座与伸缩部，所述顶紧底座支撑于所述伸缩部的下方，所述伸缩部支撑于所述连接件的下方,所述伸缩部能够相对所述顶紧底座沿上下方向伸缩。
- 根据权利要求1所述的回顶支撑结构，其特征在于，所述回顶支撑结构还包括顶部抵持件，所述顶部抵持件连接于所述回顶柱用于顶紧所述钢结构顶部的一端，所述顶部抵持件的横截面的面积大于所述回顶柱的横截面的面积，所述顶部抵持件用于抵持所述钢结构的顶部。
- 根据权利要求6所述的回顶支撑结构，其特征在于，所述回顶支撑结构还包括多个加强肋，所述加强肋连接于所述顶部抵持件与所述回顶柱之间。
- 根据权利要求1所述的回顶支撑结构，其特征在于，所述回顶基台包括浇筑层与回灌层，所述回灌层与所述回顶柱连接，所述浇筑层位于所述回灌层下方。
- 回顶支撑结构施工方法，其特征在于，包括：准备如权利要求1至8中任一项中所述的回顶柱和顶紧节点；在钢结构的底部设定位置建设所述回顶基台；于所述回顶基台的上方使所述回顶柱顶紧所述钢结构的顶部；填充所述回顶柱与所述回顶基台之间的间隙。
- 根据权利要求9所述的回顶支撑结构施工方法，其特征在于，填充所述回顶基台与回所述顶柱底部之间的间隙的方法包括：向所述回顶柱与所述回顶基台之间的间隙浇筑灌浆料。
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| JP2003261909A (ja) * | 2002-03-07 | 2003-09-19 | Ishikawajima Harima Heavy Ind Co Ltd | 鋼橋脚の補強方法及び補強構造 |
| BRPI0505151A (pt) * | 2005-11-22 | 2007-08-07 | Fabio Luiz Dos Santos Santana | coluna de sustentação ajustável - csa |
| CN107191000A (zh) * | 2017-06-07 | 2017-09-22 | 中铁第勘察设计院集团有限公司 | 高度可伸缩调节的临时支撑加固组合钢结构 |
| CN208586937U (zh) * | 2018-07-10 | 2019-03-08 | 中建八局第一建设有限公司 | 一种可施加预顶力混凝土结构回顶装置 |
| CN111042579A (zh) * | 2020-01-02 | 2020-04-21 | 中国建筑第八工程局有限公司 | 用于承重结构的快速回顶装置及方法 |
| CN113006529A (zh) * | 2021-03-17 | 2021-06-22 | 中建科工集团有限公司 | 回顶支撑结构及回顶支撑结构施工方法 |
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| JP2003261909A (ja) * | 2002-03-07 | 2003-09-19 | Ishikawajima Harima Heavy Ind Co Ltd | 鋼橋脚の補強方法及び補強構造 |
| BRPI0505151A (pt) * | 2005-11-22 | 2007-08-07 | Fabio Luiz Dos Santos Santana | coluna de sustentação ajustável - csa |
| CN107191000A (zh) * | 2017-06-07 | 2017-09-22 | 中铁第勘察设计院集团有限公司 | 高度可伸缩调节的临时支撑加固组合钢结构 |
| CN208586937U (zh) * | 2018-07-10 | 2019-03-08 | 中建八局第一建设有限公司 | 一种可施加预顶力混凝土结构回顶装置 |
| CN111042579A (zh) * | 2020-01-02 | 2020-04-21 | 中国建筑第八工程局有限公司 | 用于承重结构的快速回顶装置及方法 |
| CN113006529A (zh) * | 2021-03-17 | 2021-06-22 | 中建科工集团有限公司 | 回顶支撑结构及回顶支撑结构施工方法 |
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