Construction method

Abstract

The invention relates to the technical field of steel structure buildings, and discloses a construction method which comprises the steps that at least one second supporting column is arranged between every two adjacent first supporting columns at intervals; a first cross beam is fixed above at least one second supporting column; at least one supporting piece is fixed above the first cross beam; a first cross beam is fixed above at least one supporting piece; at least one second supporting column is fixed above the first cross beam; a truss is fixed above at least one second supporting column; dismantling the supporting piece; and repeating the steps. The supporting piece is adopted as a temporary support, the space area of the floor can be increased, and the view field is wider; the supporting pieces can provide supporting force for the second supporting columns during construction, the construction difficulty can be reduced, the construction quality and the safety during construction can be improved by adopting the construction sequence from bottom to top, the construction period can be shortened, and the construction cost can be reduced; by arranging the truss, part of acting force can be transmitted to the foundation through the first supporting column.

Description

Technical Field

[0001] The invention relates to the technical field of steel structure buildings, and in particular to a construction method. Background Art

[0002] With the development of science and technology, people's demand for the appearance and use of buildings has gradually increased. Steel structures have the characteristics of high strength, strong plasticity, light weight and good earthquake resistance, and are widely used in large venues, high-rise buildings and large-span buildings.

[0003] However, in existing steel structure high-rise buildings, due to the high floors and large width of each floor, each floor needs to be supported by multiple load-bearing columns, which makes the field of vision not wide enough and the layout design is greatly affected by the load-bearing columns. Summary of the invention

[0004] In view of this, the present invention provides a construction method to solve the problem that the existing steel structure high-rise building has a narrow field of vision and the layout design is greatly affected by the load-bearing columns.

[0005] The present invention provides a construction method for performing construction between at least two first support columns arranged at intervals, comprising:

[0006] At least one second supporting column is arranged between two adjacent first supporting columns;

[0007] Fixing a first crossbeam above at least one of the second support columns, and fixing two ends of the first crossbeam between two adjacent first support columns;

[0008] Fixing at least one support member above the first crossbeam;

[0009] fixing the first cross beam above at least one of the support members;

[0010] Fix at least one of the second support columns above the first crossbeam;

[0011] Fixing a truss above at least one of the second support columns, and fixing two ends of the truss between two adjacent first support columns;

[0012] removing the support member;

[0013] Repeat the above steps.

[0014] Beneficial effects: by using the support members as temporary supports and then removing them after the construction is completed, the spatial area of ​​the floor can be increased, the field of vision is wider, and the layout design can be more flexible; secondly, by setting the support members, it is possible to provide support force for the second support column during construction, and then the second support column can be set first, and then the truss can be fixed above the second support column. The bottom-up construction sequence can reduce the construction difficulty, improve the construction quality and safety during construction, and can shorten the construction period and reduce the construction cost, avoid fixing the truss first and then setting the second support column below the truss, because the truss is far away from the first beam below the truss, which increases the construction difficulty and danger during construction, and increases the construction cost and construction period; by setting the truss, it is possible to provide support force for the second support column above the truss and provide pulling force for the second support column below the truss, and then part of the force is transmitted to the foundation through the first support column, thereby improving the support force of the second support column on the first beam, and avoiding serious deformation and displacement of the second support column and the first beam after the support members are removed, which causes danger.

[0015] In an optional embodiment, along the height direction, the size of the support member is greater than a preset distance between two adjacent first beams.

[0016] Beneficial effect: By setting the size of the support member to be larger than the preset distance, it is possible to avoid the vertical deformation of the second support column, the first beam and the truss from affecting the floor without the second support column, such as lowering the height of the floor, thereby affecting the use effect.

[0017] In an optional embodiment, at least two support members are provided, and the height of the support member arranged near the edge is smaller than the height of the support member arranged near the middle.

[0018] Beneficial effect: By setting the height of the support member close to the edge to be smaller than the height of the support member close to the middle, the vertical deformation of the second support column, the first beam and the truss can be consistent.

[0019] In an optional embodiment, a fixing portion is provided on a side of the first cross beam close to the support member, and the support member is fixedly connected to the fixing portion.

[0020] Beneficial effect: By arranging the fixing part on the first cross beam, it is convenient to connect with the support member, and the connection is more firm.

[0021] In an optional embodiment, the support member is fixedly connected to the fixing portion, comprising:

[0022] pre-fixing the support member and the fixing portion;

[0023] Correcting the verticality between the support member and the fixing portion;

[0024] The support member and the fixing portion are welded.

[0025] Beneficial effect: By pre-fixing the support member and the fixing part and then correcting the verticality of the support member, the installation accuracy of the support member can be improved, and the support member can be prevented from being tilted, thereby affecting the construction quality of the first beam and the second support column above.

[0026] In an optional embodiment, after removing the support member, the method further comprises:

[0027] The fixing portion is cut away.

[0028] Beneficial effect: By cutting off the fixing part, the aesthetics of the floor without the second supporting column can be maintained, and the safety of the floor when in use can be improved, and the decoration is also more convenient and safer.

[0029] In an optional embodiment, the height of the fixing portion is 0.6 m;

[0030] And / or, the cross-sections of the support member and the fixing portion are both I-shaped.

[0031] Beneficial effect: By setting the height of the fixing part to 0.6m, it is convenient for operators to fix and connect the support member and the fixing part.

[0032] In an optional embodiment, before fixing the first crossbeam above at least one of the second support columns, the method includes:

[0033] A plurality of second beams are fixed at intervals between the second support column and the first beam, and two ends of the second beam are respectively connected to the first support column and the second support column, or two ends of the second beam are respectively connected to two adjacent second support columns;

[0034] And / or, before fixing the truss above at least one of the second support columns, comprising:

[0035] A plurality of second beams are fixed at intervals between the second support column and the truss, and two ends of the second beam are respectively connected to the first support column and the second support column, or two ends of the second beam are respectively connected to two adjacent second support columns.

[0036] Beneficial effects: By fixing multiple second beams at intervals between the second support column and the first beam, multiple floors can be formed, thereby improving the utilization rate of the space; by fixing multiple second beams at intervals between the second support column and the truss, multiple floors can be formed, thereby improving the utilization rate of the space.

[0037] In an optional embodiment, before removing the support member, the method includes:

[0038] Fixing at least one of the second support columns above the truss;

[0039] The first cross beam is fixed above at least one of the second support columns.

[0040] Beneficial effect: By fixing the second support column and the first beam above the truss and then removing the support member, it is possible to ensure that the connection strength between the truss and the first support column is formed before removing the support member, thereby avoiding serious deformation of the second support column, the first beam and the truss after removing the support member.

[0041] In an optional embodiment, before at least one second support column is arranged between two adjacent first support columns, the method comprises:

[0042] At the ground level, at least one support member is arranged between two adjacent first support columns;

[0043] The first cross beam is fixed above at least one of the support members, and two ends of the first cross beam are fixed between two adjacent first support columns.

[0044] Beneficial effect: By first setting the support members at the ground elevation, the first floor or more lower floors can be set as a structure without a second support column, thereby increasing the use area of ​​the first floor or more lower floors. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0046] Figure 1 A schematic diagram of the steps of a construction method according to an embodiment of the present invention (I);

[0047] Figure 2 for Figure 1 Schematic diagram of the steps of the construction method shown (II);

[0048] Figure 3 for Figure 1 Schematic diagram of the steps of the construction method shown (III);

[0049] Figure 4 for Figure 1 Schematic diagram of the steps of the construction method shown (IV);

[0050] Figure 5 for Figure 1 Schematic diagram of the steps of the construction method shown (V);

[0051] Figure 6 for Figure 1 Schematic diagram of the steps of the construction method shown (VI);

[0052] Figure 7 It is a schematic diagram of the structure of the fixing part and the supporting member of the first crossbeam.

[0053] Description of reference numerals:

[0054] 1. First support column; 2. Second support column; 3. First cross beam; 31. Fixed portion; 4. Support member; 5. Truss; 6. Connecting assembly; 61. Ear plate; 62. Connecting plate; 7. Adjusting assembly; 71. Support seat; 72. Push member; 8. Second cross beam. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0056] Combine the following Figures 1 to 7 , describing an embodiment of the present invention.

[0057] According to an embodiment of the present invention, there is provided a construction method for performing construction between at least two first support columns 1 that are spaced apart, comprising: spacing apart at least one second support column 2 between two adjacent first support columns 1; fixing a first beam 3 above at least one second support column 2, and fixing both ends of the first beam 3 between two adjacent first support columns 1; fixing at least one support member 4 above the first beam 3; fixing the first beam 3 above at least one support member 4; fixing at least one second support column 2 above the first beam 3; fixing a truss 5 above at least one second support column 2, and fixing both ends of the truss 5 between two adjacent first support columns 1; removing the support member 4; and repeating the above steps.

[0058] By using the support member 4 as a temporary support and then removing it after the construction is completed, the spatial area of ​​the floor can be increased, the field of vision is wider, and the layout design can be more flexible; secondly, by setting the support member 4, it is possible to provide support force for the second support column 2 during construction, and then the second support column 2 can be set first, and then the truss 5 can be fixed above the second support column 2. The bottom-up construction sequence can reduce the construction difficulty, improve the construction quality and safety during construction, and can shorten the construction period and reduce the construction cost, avoid fixing the truss 5 first and then setting the second support column 2 below the truss 5. Since the truss 5 is far away from the first beam 3 below the truss 5, the construction difficulty and danger during construction are increased, and the construction cost and construction period are increased; by setting the truss 5, it is possible to provide support force for the second support column 2 above the truss 5 and provide tension for the second support column 2 below the truss 5, and then part of the force is transmitted to the foundation through the first support column 1, thereby improving the support force of the second support column 2 on the first beam 3, and avoiding serious deformation and displacement of the second support column 2 and the first beam 3 after the support member 4 is removed, which causes danger.

[0059] like Figure 1-Figure 6 As shown, in one embodiment, two first support columns 1 are provided, two second support columns 2 are provided, and two support members 4 are provided; the first support column 1 and the second support column 2 are steel columns; the first cross beam 3 and the support member 4 are steel beams; the truss 5 is a steel truss. As a convertible embodiment, the first support column 1 may also be provided with one or three, and the specific number is determined according to the actual situation. As a convertible embodiment, the second support column 2 may also be provided with one or three, and the specific number is determined according to the actual situation. As a convertible embodiment, the support member 4 may also be provided with one or three, and the specific number is determined according to the actual situation. As a convertible embodiment, the support member 4 may also adopt a reinforced concrete column or a tire frame structure, as long as it can support two adjacent first cross beams 3, and no excessive restrictions are made here.

[0060] like Figure 1-Figure 3 As shown, in one embodiment, before two second support columns 2 are spaced between two adjacent first support columns 1, the following steps are included: at the ground elevation, two support members 4 are spaced between two adjacent first support columns 1; a first crossbeam 3 is fixed above the two support members 4, and both ends of the first crossbeam 3 are fixed between two adjacent first support columns 1. By firstly setting the support members 4 at the ground elevation, the first floor or more lower floors can be set to a structure without the second support columns 2, thereby increasing the usable area of ​​the first floor or more lower floors. As a convertible embodiment, two second support columns 2 can be spaced between two adjacent first support columns 1 at the ground elevation, a truss 5 is fixed above the two second support columns 2, and both ends of the truss 5 are fixed between two adjacent first support columns 1.

[0061] like Figure 3 As shown, in one embodiment, before the first beam 3 is fixed above the two second support columns 2, it includes: fixing a plurality of second beams 8 at intervals between the second support columns 2 and the first beam 3, the two ends of the second beams 8 on both sides are respectively connected to the first support column 1 and the second support column 2, and the two ends of the middle second beam 8 are respectively connected to the two adjacent second support columns 2. By fixing a plurality of second beams 8 at intervals between the second support columns 2 and the first beam 3, multiple floors can be formed, thereby improving the utilization rate of the space. As a convertible implementation, the second beam 8 may not be set, or only one or two second beams 8 may be set, and the two ends of the second beam 8 are connected to the first support column 1 and / or the second support column 2 according to the actual number of second beams 8, and no excessive restrictions are made here.

[0062] When the support member 4 is removed, the second support column 2, the first beam 3 and the truss 5 will produce vertical deformation due to the deadweight of the structure and other loads in the floor, and the deformation amount is proportional to the structural load. In order to ensure the flatness of each floor, in one embodiment, the size of the support member 4 is greater than the preset distance between two adjacent first beams 3 in the height direction. Specifically, the size of the support member 4 exceeding the preset distance is adapted to the amount of vertical deformation produced by the second support column 2, the first beam 3 and the truss 5. By setting the size of the support member 4 to be greater than the preset distance, it is possible to avoid the vertical deformation of the second support column 2, the first beam 3 and the truss 5 from affecting the floor without the second support column 2, such as lowering the height of the floor, thereby affecting the use effect. As a convertible embodiment, it is also possible to avoid vertical deformation by setting multiple trusses 5.

[0063] In one embodiment, three support members 4 are provided, and the height of the support member 4 arranged near the edge is smaller than the height of the support member 4 arranged near the middle. By setting the height of the support member 4 near the edge to be smaller than the height of the support member 4 near the middle, the vertical deformation of the second support column 2, the first beam 3 and the truss 5 can be consistent. As a convertible embodiment, it is also possible that two support members 4 are provided, and when the distances between the two support members 4 and the edge are the same, the heights of the two support members 4 are the same; when the distances between the two support members 4 and the edge are different, the heights of the two support members 4 are different.

[0064] like Figure 3-Figure 4As shown, in one embodiment, a fixing portion 31 is provided on one side of the first beam 3 close to the support member 4, and the support member 4 is fixedly connected to the fixing portion 31. The cross-sections of the support member 4 and the fixing portion 31 are both I-shaped; the height of the fixing portion 31 is 0.6m. By providing the fixing portion 31 on the first beam 3, it is convenient to connect with the support member 4, and the connection is more tight; by setting the height of the fixing portion 31 to 0.6m, it is convenient for operators to fix the support member 4 and the fixing portion 31. As a convertible embodiment, it can also be that the support member 4 is directly fixedly connected to the first beam 3, or the second support column 2 passes through the first beam 3 and is fixedly connected to the support member 4, and there is no excessive restriction here. As a convertible embodiment, the cross-sections of the support member 4 and the fixing portion 31 can also be rectangular or "U" shaped, and the cross-sectional shape is determined according to the site conditions, and there is no excessive restriction here. As a convertible embodiment, the height of the fixing portion 31 can also be 0.4m or 0.8m, and the height of the fixing portion 31 is determined according to the actual construction situation, and there is no excessive restriction here.

[0065] like Figure 7 As shown, in one embodiment, the support member 4 is fixedly connected to the fixing portion 31, including: pre-fixing the support member 4 and the fixing portion 31; correcting the verticality between the support member 4 and the fixing portion 31; welding the support member 4 and the fixing portion 31. By pre-fixing the support member 4 and the fixing portion 31, and then correcting the verticality of the support member 4, the installation accuracy of the support member 4 can be improved, and the support member 4 can be prevented from being tilted, thereby affecting the construction quality of the first beam 3 and the second support column 2 above. As a convertible embodiment, a sleeve structure can also be provided between the support member 4 and the fixing portion 31, and the two sides of the sleeve structure can be welded to the support member 4 and the fixing portion 31 respectively, or a groove can be provided at the end of the fixing portion 31, and the support member 4 can be inserted into the groove for fixing, to ensure the verticality of the support member 4, and no excessive restrictions are made here.

[0066] like Figure 7 As shown, in one embodiment, the support member 4 and the fixing portion 31 are detachably connected via a connecting assembly 6 to achieve pre-fixation, wherein the connecting assembly 6 comprises: two ear plates 61, respectively fixed to the support member 4 and the fixing portion 31, and the ear plates 61 are provided with a plurality of first through holes; a connecting plate 62, connected between the two ear plates 61, and the connecting plate 62 is provided with a plurality of second through holes, and the connecting plate 62 is connected to the ear plates 61 via a connecting member. The connecting member is a bolt. As a convertible embodiment, a flat plate may be provided at the ends of the support member 4 and the fixing portion 31, respectively, and the two flat plates are connected via a connecting member. As a convertible embodiment, the connecting member may also be a latch or a cylindrical member, and no excessive restrictions are made here.

[0067] like Figure 7As shown, in one embodiment, the verticality between the support member 4 and the fixed portion 31 is corrected by adjusting the assembly 7, wherein the adjusting assembly 7 comprises: a support seat 71, the cross section of which is "L" shaped, one end of the support seat 71 is fixed to the fixed portion 31, and the other end is arranged away from the fixed portion 31; a push member 72, one end of which is fixed to the support member 4, and the other end is abutted against the inner side surface of the other end of the support seat 71. The push member 72 is a jack. When in use, the push member 72 is gradually extended so that the support member 4 rotates to the side away from the push member 72 to adjust the verticality between the support member 4 and the fixed portion 31. As a convertible embodiment, a wedge block can also be placed between the support member 4 and the fixed portion 31, and the support member 4 can be rotated to the other side by gradually extending the wedge block into the space between the support member 4 and the fixed portion 31. As a convertible embodiment, the push member 72 can also be a telescopic structure.

[0068] like Figure 2 As shown, in one embodiment, before the trusses 5 are fixed above the two second support columns 2, it includes: fixing a plurality of second cross beams 8 at intervals between the second support columns 2 and the trusses 5, the two ends of the second cross beams 8 on both sides are respectively connected to the first support column 1 and the second support column 2, and the two ends of the middle second cross beam 8 are respectively connected to the two adjacent second support columns 2. By fixing a plurality of second cross beams 8 at intervals between the second support columns 2 and the trusses 5, multiple floors can be formed, thereby improving the utilization rate of the space. As a convertible embodiment, the second cross beam 8 may not be provided, or only one or two second cross beams 8 may be provided, and the two ends of the second cross beam 8 may be connected to the first support column 1 and / or the second support column 2 according to the actual number of second cross beams 8 provided, and no excessive restrictions are made here.

[0069] In one embodiment, before removing the support member 4, the following steps are included: fixing two second support columns 2 above the truss 5; fixing the first cross beam 3 above the two second support columns 2. By fixing the second support columns 2 and the first cross beam 3 above the truss 5 and then removing the support member 4, it is possible to ensure that the connection strength between the truss 5 and the first support column 1 is formed before removing the support member 4, thereby avoiding serious deformation of the second support column 2, the first cross beam 3 and the truss 5 after removing the support member 4. As a convertible embodiment, after the construction of the truss 5 is completed, the support member 4 can be removed after the connection strength between the truss 5 and the first support column 1 is formed, and then subsequent construction can be carried out.

[0070] like Figure 4 , Figure 6 As shown, in one embodiment, after the support member 4 is removed, the fixing portion 31 is cut off. By cutting off the fixing portion 31, the aesthetics of the floor without the second support column 2 can be maintained, and the safety of the floor when in use can be improved, and the decoration is more convenient and safe.

[0071] In one embodiment, the construction method is as follows:

[0072] At the ground level, two support members 4 are spaced apart between two adjacent first support columns 1;

[0073] The first cross beam 3 is fixed above the two support members 4, and both ends of the first cross beam 3 are fixed between two adjacent first support columns 1;

[0074] Two second support columns 2 are fixed above the first crossbeam 3;

[0075] A plurality of second beams 8 are fixed between the second support column 2 and the truss 5 at intervals;

[0076] A truss 5 is fixed above the two second support columns 2, and two ends of the truss 5 are fixed between two adjacent first support columns 1;

[0077] Two second support columns 2 are fixed above the truss 5;

[0078] A plurality of second cross beams 8 are fixed between the second support column 2 and the first cross beam 3 at intervals;

[0079] A first crossbeam 3 is fixed above the two second support columns 2;

[0080] Remove support member 4;

[0081] Cut off the fixing portion 31;

[0082] Repeat the above steps.

[0083] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A construction method for carrying out construction between at least two first support columns (1) arranged at intervals, characterized in that: include: At least one second support column (2) is arranged between two adjacent first support columns (1); A first crossbeam (3) is fixed above at least one of the second support columns (2), and two ends of the first crossbeam (3) are fixed between two adjacent first support columns (1); At least one support member (4) is fixed above the first crossbeam (3); Fixing the first cross beam (3) above at least one of the support members (4); At least one of the second support columns (2) is fixed above the first crossbeam (3); A truss (5) is fixed above at least one of the second support columns (2), and two ends of the truss (5) are fixed between two adjacent first support columns (1); Removing the support member (4); Repeat the above steps.

2. The construction method according to claim 1, characterized in that: Along the height direction, the size of the support member (4) is greater than the preset distance between two adjacent first beams (3).

3. The construction method according to claim 2, characterized in that: At least two support members (4) are provided, and the height of the support member (4) arranged near the edge is smaller than the height of the support member (4) arranged near the middle.

4. The construction method according to any one of claims 1 to 3, characterized in that: A fixing portion (31) is provided on one side of the first cross beam (3) close to the support member (4), and the support member (4) is fixedly connected to the fixing portion (31).

5. The construction method according to claim 4, characterized in that: The support member (4) is fixedly connected to the fixing portion (31), and comprises: Pre-fixing the support member (4) and the fixing portion (31); Correcting the verticality between the support member (4) and the fixing portion (31); The support member (4) and the fixing portion (31) are welded.

6. The construction method according to claim 4, characterized in that: After removing the support member (4), the method comprises: The fixing portion (31) is cut off.

7. The construction method according to claim 4, characterized in that: The height of the fixing portion (31) is 0.6 m; And / or, the cross-sections of the support member (4) and the fixing portion (31) are both I-shaped.

8. The construction method according to any one of claims 1 to 3, characterized in that: Before fixing the first crossbeam (3) above at least one of the second support columns (2), the method comprises: A plurality of second cross beams (8) are fixed at intervals between the second support column (2) and the first cross beam (3), and two ends of the second cross beam (8) are respectively connected to the first support column (1) and the second support column (2), or two ends of the second cross beam (8) are respectively connected to two adjacent second support columns (2); And / or, before fixing the truss (5) above at least one of the second support columns (2), comprising: A plurality of second cross beams (8) are fixed at intervals between the second support column (2) and the truss (5), and the two ends of the second cross beam (8) are respectively connected to the first support column (1) and the second support column (2), or the two ends of the second cross beam (8) are respectively connected to two adjacent second support columns (2).

9. The construction method according to any one of claims 1 to 3, characterized in that: Before removing the support member (4), the method comprises: At least one of the second support columns (2) is fixed above the truss (5); The first cross beam (3) is fixed above at least one of the second support columns (2).

10. The construction method according to any one of claims 1 to 3, characterized in that: Before at least one second support column (2) is arranged between two adjacent first support columns (1), the method comprises: At the ground level, at least one support member (4) is arranged between two adjacent first support columns (1); The first cross beam (3) is fixed above at least one of the support members (4), and two ends of the first cross beam (3) are fixed between two adjacent first support columns (1).

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