Construction method and construction support structure of building structure in the area where the pipeline to be removed collides

Abstract

The present invention is a construction method and a construction support structure for a building structure in a collision area with a pipeline to be removed. The method includes: disconnecting the building structure from the collision area of ​​the pipeline to be removed, forming an upper structure above the collision area, forming a lower structure below the collision area, leaving lower column steel bars extending to the collision area in the lower structure, leaving upper column steel bars extending to the collision area in the upper structure, setting a support structure extending to the upper structure and avoiding the pipeline to be removed from the lower structure upward, and performing casting construction of the upper structure and the lower structure; after removing the pipeline to be removed, connecting the lower column steel bars and the upper column steel bars, and casting construction of the support structure, the upper column steel bars and the lower column steel bars in the collision area. The present invention can enable the building structure to meet the construction period requirements without affecting its integrity and strength under the premise of temporarily postponing the removal of the pipeline to be removed.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline-related building structure construction, and in particular to a construction method and a construction support structure for a building structure in an area that collides with a pipeline to be removed. Background Art

[0002] The layout of pipelines in industrial plants is complex, and pipeline routes often need to be changed to avoid new buildings. However, many pipelines cannot be removed without shutting down the entire plant, and can only be modified later. In addition, the construction period of industrial buildings is extremely tight, and the new building structure must not only meet the construction period, but also cannot affect the production of the plant. Industrial buildings are all for industrial equipment. Under the premise that the equipment cannot be changed, the building cannot be resized or moved.

[0003] At this time, if there is only a slight collision between the pipeline and the new building structure, measures can be taken during construction to temporarily avoid the pipeline and continue construction. After the pipeline is removed, the pouring of the concrete structure can be completed.

[0004] In the prior art, the conventional construction method for the building structure in the area that collides with the pipeline to be removed is to temporarily suspend the construction of the overall structure, wait for the plant to shut down, remove the pipeline, and then carry out the construction of the structure. The disadvantage of this method is that the plant shutdown is arranged by the plant according to the production situation, and there may not be a plan in the short term. The postponement of the overall construction may result in the inability to complete the construction within the expected period, and then the inability to start production according to the contract period.

[0005] Therefore, the inventor, relying on his many years of experience and practice in related industries, proposes a construction method and a construction support structure for the building structure in the area where the pipeline collides with the pipeline to be demolished, so as to overcome the defects of the prior art. Summary of the invention

[0006] The purpose of the present invention is to provide a construction method and a construction support structure for a building structure in an area where the pipeline to be removed collides with the building structure. The present invention can enable the building structure to meet the construction period requirements without affecting its integrity and strength under the premise of temporarily postponing the removal of the pipeline to be removed.

[0007] The object of the present invention is achieved in this way. A construction method for a building structure in a collision area with a pipeline to be demolished includes disconnecting the building structure from the collision area with the pipeline to be demolished, forming an upper structure above the collision area, and forming a lower structure below the collision area. Lower column steel bars extending toward the collision area are reserved in the lower structure, and upper column steel bars extending toward the collision area are reserved in the upper structure. A supporting structure extending from the lower structure to the upper structure and avoiding the pipeline to be demolished is arranged upward, and the upper structure and the lower structure are cast. After the pipeline to be demolished is removed, the lower column steel bars and the upper column steel bars are connected, and the supporting structure, the upper column steel bars and the lower column steel bars in the collision area are cast.

[0008] In a preferred embodiment of the present invention, the construction method of the building structure in the area where the pipeline to be removed collides with the pipeline to be removed comprises the following steps:

[0009] Step a, tying the lower frame column below the pipeline to be dismantled, leaving the column reinforcement in reserve, to form a lower column reinforcement cage;

[0010] Step b, inserting the support structure into the lower column reinforcement cage and positioning it; and performing concrete pouring construction of the lower structure;

[0011] Step c: Retain upper column reinforcement above the pipeline to be dismantled and perform upper structure concrete pouring construction;

[0012] Step d: After removing the pipeline to be removed, overlap and straighten the reserved lower column steel bars and upper column steel bars, and use concrete to cast the supporting structure, upper column steel bars and lower column steel bars in the collision area.

[0013] In a preferred embodiment of the present invention, in step b, the supporting structure includes a supporting steel column avoiding the pipeline to be removed, a column base plate is arranged at the bottom of the supporting steel column, and the column base plate and the lower part of the supporting steel column are inserted into the lower column steel cage.

[0014] In a preferred embodiment of the present invention, in step b, the column base plate and the lower part of the supporting steel column are inserted into the lower column reinforcement cage, and concrete is poured above the column base plate.

[0015] In a preferred embodiment of the present invention, in step c, a column top plate is arranged on the top of the supporting steel column, and the column top plate and the upper part of the supporting steel column are inserted into an upper column steel bar cage formed by upper column steel bars.

[0016] In a preferred embodiment of the present invention, in step a and step c, the reserved lower column reinforcement and upper column reinforcement avoid the pipeline to be dismantled.

[0017] In a preferred embodiment of the present invention, the grade of the concrete poured in step d is higher than the grade of the concrete poured in step c.

[0018] In a preferred embodiment of the present invention, in step c, C30 concrete is used to cast the upper structure; in step d, C35 concrete is used to cast the supporting structure, upper column steel bars and lower column steel bars.

[0019] The purpose of the present invention can also be achieved in this way. A construction support structure is used in the aforementioned construction method of the building structure in the area where the pipeline collides with the pipeline to be demolished, including a supporting steel column that avoids the pipeline to be demolished, a column top plate is arranged on the top of the supporting steel column, and a column base plate is arranged on the bottom of the supporting steel column.

[0020] In a preferred embodiment of the present invention, the supporting steel column is made of profiled steel.

[0021] As described above, the construction method and construction support structure of the building structure in the collision area with the pipeline to be demolished of the present invention have the following beneficial effects:

[0022] The present invention can make the building structure meet the construction period requirements without affecting its integrity and strength under the premise of temporarily postponing the removal of the pipeline to be removed;

[0023] In the construction support structure of the present invention, a column top plate is arranged on the top of the supporting steel column, and the column top plate and the upper part of the supporting steel column are inserted into an upper column steel bar cage formed by upper column steel bars. The column top plate can prevent shear damage from occurring at the interface between the upper structure concrete and the supporting steel column. The support structure of the present invention is cast together with the upper column steel bars and the lower column steel bars to enhance the structural stability of the collision area with the pipeline to be dismantled. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The following drawings are intended only to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.

[0025] Figure 1 : It is a construction schematic diagram of the construction method of the building structure of the collision area with the pipeline to be removed according to the present invention.

[0026] Figure 2 : Schematic diagram of the collision status between the pipeline to be demolished and the building structure.

[0027] In the figure:

[0028] 1. Pipelines to be dismantled;

[0029] 2. Lower structure; 21. Lower column reinforcement;

[0030] 3. Superstructure; 31. Upper column reinforcement;

[0031] 4. Support structure;

[0032] 41. Supporting steel column; 42. Column top plate; 43. Column foot plate;

[0033] 5. Building structure; 51. Collision area. DETAILED DESCRIPTION

[0034] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described with reference to the accompanying drawings.

[0035] The specific embodiments of the present invention described herein are only used to explain the purpose of the present invention and cannot be understood as limiting the present invention in any way. Under the guidance of the present invention, technicians can conceive of any possible variations based on the present invention, which should be considered to belong to the scope of the present invention. It should be noted that when an element is referred to as "arranged on" another element, it can be directly on the other element or there can also be a central element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be a central element at the same time. The terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation method.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0037] The present invention provides a construction method for a building structure in a collision area with a pipeline (obstacle) to be removed. The collision state between the pipeline (obstacle) to be removed and the building structure 5 is as follows: Figure 2 As shown, the construction is disconnected between the building structure and the collision area 51 of the pipeline to be removed, the upper part of the collision area 51 constitutes the upper structure 3, the lower part of the collision area 51 constitutes the lower structure 2, the lower structure 2 is provided with lower column reinforcement 21 extending to the collision area 51, the upper structure 3 is provided with upper column reinforcement 31 extending to the collision area 51, and a support structure 4 extending from the lower structure 2 to the upper structure 3 and avoiding the pipeline to be removed is provided upward, and the upper structure 3 and the lower structure 2 are cast. After the pipeline 1 to be removed is removed, the lower column reinforcement 21 and the upper column reinforcement 31 are connected, and the support structure 4, the upper column reinforcement 31 and the lower column reinforcement 21 in the collision area 51 are cast. The schematic diagram of the construction method of the building structure in the collision area with the pipeline to be removed of the present invention is shown in FIG. Figure 1 shown.

[0038] The construction method of the building structure in the collision area with the pipeline to be removed of the present invention can make the building structure meet the construction period requirements without affecting its integrity and strength under the premise of temporarily postponing the removal of the pipeline to be removed.

[0039] The construction method of the building structure in the area where the pipeline to be removed collides with the building structure of the present invention comprises the following steps:

[0040] Step a, tying the lower frame column below the pipeline 1 to be dismantled, leaving the column reinforcement 21 in reserve, to form a lower column reinforcement cage;

[0041] Specifically, the reserved lower column reinforcement 21 needs to avoid the pipeline 1 to be dismantled, and sufficient lap length needs to be reserved for the lower column reinforcement 21.

[0042] Step b, insert the support structure 4 into the lower column reinforcement cage and position it; and perform concrete pouring construction of the lower structure;

[0043] Specifically, Figure 1 As shown, the support structure 4 includes a support steel column 41 that avoids the pipeline to be removed, and a column base plate 43 is arranged at the bottom of the support steel column 41. The column base plate 43 and the lower part of the support steel column 41 are inserted into the lower column steel cage.

[0044] To ensure the stability of the supporting steel column 41, the lower structure is poured with concrete to the top of the column foot plate 43. In this embodiment, C30 concrete is used to pour the lower structure.

[0045] Step c: The upper structure 3 above the pipeline 1 to be dismantled is provided with upper column steel bars 31, and the upper structure concrete pouring construction is performed;

[0046] Specifically, the reserved upper column reinforcement 31 needs to avoid the pipeline 1 to be dismantled, and sufficient lap length needs to be reserved for the upper column reinforcement 31.

[0047] like Figure 1 As shown, in order to avoid shear failure at the interface between the upper structure concrete and the supporting steel column 41, a column top plate 42 is set on the top of the supporting steel column 41, and the column top plate 42 and the upper part of the supporting steel column 41 are inserted into the upper column reinforcement cage formed by the upper column reinforcement. The size of the column top plate 42 is based on the principle of not affecting the upper column reinforcement 31, and is as large as possible.

[0048] To ensure construction safety, loading of upper equipment, pipelines, etc. must be temporarily suspended during construction of the upper structure.

[0049] In this embodiment, C30 concrete is used to cast the upper structure;

[0050] Step d: After removing the pipeline 1 to be removed, overlap and straighten the reserved lower column reinforcement 21 and upper column reinforcement 31, and use concrete to cast the support structure 4, upper column reinforcement 31 and lower column reinforcement 21 in the collision area 51.

[0051] Specifically, the grade of the concrete poured in step d is higher than the grade of the concrete poured in step c. In this embodiment, C35 concrete is used to pour the support structure, the upper column reinforcement 31 and the lower column reinforcement.

[0052] The supporting structure in the collision area 51 is cast together with the upper column reinforcement and the lower column reinforcement 21 to enhance the structural stability of the collision area with the pipeline to be removed.

[0053] The present invention provides a construction support structure for the aforementioned construction method of the building structure in the area colliding with the pipeline to be demolished, including a support steel column 41 avoiding the pipeline to be demolished, a column top plate 42 is arranged on the top of the support steel column 41, and a column base plate 43 is arranged on the bottom of the support steel column 41.

[0054] Furthermore, the supporting steel column 41 is made of profiled steel.

[0055] A specific embodiment of the present invention is as follows:

[0056] The frame columns of the building structure in the area that collides with the pipeline to be removed are temporarily cast to a position 1000mm below the pipe bottom elevation, where the lower column steel bars 21 are pre-buried;

[0057] The lower column reinforcement on the conflicting side (where the pipeline to be removed collides with the building structure) shall be provided with joints at the bottom elevation of the pipeline, and the joint rate shall not exceed 50%;

[0058] A 3-meter-long HW350x350mm steel column (supporting steel column 41) is arranged in the lower column reinforcement cage formed by the lower column reinforcement 21, and a column top plate 42 (with a specification of 450x20x450mm) is arranged on the top of the steel column to avoid shear damage of the upper concrete;

[0059] After the support steel column 41 is installed, pour the lower 1m high concrete column (1000mm below the pipe bottom to the pipe bottom range) to ensure the stability of the support steel column 41;

[0060] Concrete columns above the pipeline top elevation are constructed later, and other frame parts are constructed normally;

[0061] After the superstructure construction is completed, it is prohibited to install equipment, and the gas pipeline must be modified first in cooperation with the factory;

[0062] After the pipeline is adjusted, the reserved lower column steel bars 21 and upper column steel bars 31 are overlapped, straightened, and welded, and then C35 concrete (the original structure is C30) is used to pour and fill the missing part of the conflict area (collision area), and the supporting steel column 41 is directly poured inside.

[0063] After implementing this, the building structure was completed as scheduled and the construction period was not delayed due to restrictions, thus ensuring the project was put into production.

[0064] As described above, the construction method and construction support structure of the building structure in the area where the pipeline to be removed collides with each other have the following beneficial effects:

[0065] The present invention can make the building structure meet the construction period requirements without affecting its integrity and strength under the premise of temporarily postponing the removal of the pipeline to be removed;

[0066] In the construction support structure of the present invention, a column top plate is arranged on the top of the supporting steel column, and the column top plate and the upper part of the supporting steel column are inserted into an upper column steel bar cage formed by upper column steel bars. The column top plate can prevent shear damage from occurring at the interface between the upper structure concrete and the supporting steel column. The support structure of the present invention is cast together with the upper column steel bars and the lower column steel bars to enhance the structural stability of the collision area with the pipeline to be dismantled.

[0067] The above description is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any person skilled in the art without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A construction method for a building structure in an area where a pipeline to be removed collides with the building structure, characterized in that: The method includes disconnecting the collision area between the building structure and the pipeline to be removed, forming an upper structure above the collision area, forming a lower structure below the collision area, setting lower column steel bars extending toward the collision area in the lower structure, setting upper column steel bars extending toward the collision area in the upper structure, setting a supporting structure extending from the lower structure upward to the upper structure and avoiding the pipeline to be removed, and performing casting construction of the upper structure and the lower structure; after removing the pipeline to be removed, connecting the lower column steel bars and the upper column steel bars, and casting construction of the supporting structure, upper column steel bars and lower column steel bars in the collision area; The following steps are involved: Step a, tying the lower frame column below the pipeline to be dismantled, leaving the column reinforcement in reserve, to form a lower column reinforcement cage; Step b, inserting the support structure into the lower column steel cage and positioning it; performing lower structure concrete pouring construction; the support structure includes a support steel column avoiding the pipeline to be removed, a column foot plate is arranged at the bottom of the support steel column, and the column foot plate and the lower part of the support steel column are inserted into the lower column steel cage; Step c, leaving upper column reinforcement above the pipeline to be dismantled, and performing upper structure concrete pouring construction; setting a column top plate on the top of the supporting steel column, and inserting the column top plate and the upper part of the supporting steel column into the upper column reinforcement cage formed by the upper column reinforcement; Step d: After removing the pipeline to be removed, overlap and straighten the reserved lower column steel bars and upper column steel bars, and use concrete to cast the supporting structure, upper column steel bars and lower column steel bars in the collision area.

2. The construction method of the building structure in the area where the pipeline to be removed collides with according to claim 1, characterized in that: In step b, the lower part of the column base plate and the supporting steel column is inserted into the lower column reinforcement cage, and concrete is poured above the column base plate.

3. The construction method of the building structure in the area where the pipeline to be removed collides with according to claim 1, characterized in that: In step a and step c, the reserved lower column steel bars and upper column steel bars avoid the pipelines to be removed.

4. The construction method of the building structure in the area where the pipeline to be removed collides with according to claim 1, characterized in that: The grade of concrete poured in step d is higher than the grade of concrete poured in step c.

5. The construction method of the building structure in the area where the pipeline to be removed collides with according to claim 4, characterized in that: In step c, C30 concrete is used to cast the upper structure; in step d, C35 concrete is used to cast the supporting structure, upper column steel bars and lower column steel bars.

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