A construction method for a semi-seat and semi-suspended steel structure

Abstract

This invention relates to the field of steel structure building technology and discloses a construction method for a semi-seat, semi-suspended steel structure, comprising: setting at least one second support column at intervals between two adjacent first support columns; fixing a first crossbeam above the at least one second support column; fixing at least one support member above the first crossbeam; fixing the first crossbeam above the at least one support member; fixing at least one second support column above the first crossbeam; fixing a truss above the at least one second support column; removing the support member; and repeating the above steps. This invention, by using support members as temporary supports, can increase the floor area, making the view more open; the support members can provide support force to the second support columns during construction; the bottom-up construction sequence can reduce construction difficulty, improve construction quality and safety, and shorten the construction period and reduce construction costs; by setting up a truss, some of the force can be transferred to the foundation through the first support columns.

Description

Technical Field

[0001] This invention relates to the field of steel structure building technology, specifically to a construction method for a semi-seat, semi-suspended steel structure. Background Technology

[0002] With the development of science and technology, people's demands for the appearance and functionality of buildings are gradually increasing. Steel structures, with their high strength, high plasticity, light weight, and good seismic performance, are widely used in large stadiums, high-rise buildings, and long-span buildings.

[0003] However, in existing high-rise steel structure buildings, due to the height of the floors and the large width of each floor, multiple load-bearing columns are required for support on each floor, resulting in a limited field of vision and a layout design that is greatly affected by the load-bearing columns. Summary of the Invention

[0004] In view of this, the present invention provides a construction method for a semi-seat and semi-suspended steel structure to solve the problems of insufficient open view and the layout design being greatly affected by load-bearing columns in existing high-rise steel structure buildings.

[0005] This invention provides a construction method for a semi-seat, semi-suspended steel structure, used for construction between at least two spaced-apart first support columns, comprising:

[0006] At least one second support column is provided at an interval between two adjacent first support columns;

[0007] A first crossbeam is fixed above at least one of the second support columns, and both ends of the first crossbeam are fixed between two adjacent first support columns.

[0008] At least one support member is fixed above the first crossbeam;

[0009] The first crossbeam is fixed above at least one of the support members;

[0010] At least one second support column is fixed above the first crossbeam;

[0011] A truss is fixed above at least one of the second support columns, and both ends of the truss are fixed between two adjacent first support columns;

[0012] Remove the support member;

[0013] Repeat the steps above.

[0014] Beneficial effects: By using supporting components as temporary supports, which can be removed after construction, the floor area can be increased, resulting in a more open view and more flexible layout design. Secondly, by setting up supporting components, support force can be provided to the second supporting column during construction. This allows the second supporting column to be set up first, and then the truss to be fixed above it. This bottom-up construction sequence reduces construction difficulty, improves construction quality and safety, and shortens the construction period and reduces construction costs. It avoids fixing the truss first and then setting up the second supporting column below it, which increases construction difficulty and danger due to the distance between the truss and the first crossbeam below it, thus increasing construction costs and time. By setting up the truss, support force can be provided to the second supporting column above the truss and tension force can be provided to the second supporting column below the truss. This transfers some of the force to the foundation through the first supporting column, increasing the support force of the second supporting column on the first crossbeam. This prevents serious deformation and displacement of the second supporting column and the first crossbeam after the supporting components are removed, thus avoiding danger.

[0015] In one alternative implementation, the dimension of the support member is greater than the preset distance between two adjacent first crossbeams along the height direction.

[0016] Beneficial effects: By setting the size of the support components to be greater 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 floors that do not have a second support column, such as reducing the height of the floor and thus affecting the usability.

[0017] In one alternative embodiment, at least two supports are provided, with the height of the support located near the edge being less than the height of the support located near the center.

[0018] Beneficial effect: By setting the height of the support members near the edge to be smaller than the height of the support members near the center, it is possible to match the vertical deformation of the second support column, the first crossbeam and the truss.

[0019] In one alternative embodiment, the first crossbeam has a fixing part on the side near the support member, and the support member is fixedly connected to the fixing part.

[0020] Beneficial effects: By setting a fixing part on the first crossbeam, it is easier to connect with the support, and the connection is more secure.

[0021] In one optional embodiment, the support member is fixedly connected to the fixing part, including:

[0022] Pre-fix the support member and the fixing part;

[0023] Correct the perpendicularity between the support member and the fixing part;

[0024] The support member is welded to the fixing part.

[0025] Beneficial effects: By pre-fixing the support components and fixing parts, and then correcting the verticality of the support components, the installation accuracy of the support components can be improved, and the support components can be avoided from being set at an angle, which would affect the construction quality of the first crossbeam and the second support column above it.

[0026] In one alternative implementation, after removing the support member, the following steps are taken:

[0027] Cut off the fixing part.

[0028] Beneficial effects: By cutting off the fixing part, the aesthetics of the floor without a second support column can be maintained, and the safety of the floor during use can be improved, making decoration more convenient and safer.

[0029] In one optional embodiment, the height of the fixing part is 0.6m;

[0030] And / or, the cross-sections of the support member and the fixing part 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 and the fixing part.

[0032] In one alternative implementation, before fixing the first crossbeam above at least one of the second support columns, the following steps are included:

[0033] Multiple second crossbeams are fixed at intervals between the second support column and the first crossbeam. The two ends of the second crossbeams are respectively connected to the first support column and the second support column, or the two ends of the second crossbeams 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, the following is included:

[0035] Multiple second crossbeams are fixed at intervals between the second support column and the truss. The two ends of the second crossbeams are respectively connected to the first support column and the second support column, or the two ends of the second crossbeams 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 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 space.

[0037] In one alternative implementation, before removing the support member, the following steps are included:

[0038] At least one second support column is fixed above the truss;

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

[0040] Beneficial effect: By fixing the second support column and the first crossbeam above the truss before removing the support components, it is possible to ensure that the connection strength between the truss and the first support column is formed before removing the support components, thus avoiding serious deformation of the second support column, the first crossbeam and the truss after the support components are removed.

[0041] In one optional implementation, before at least one second support column is provided at an interval between two adjacent first support columns, the following steps are included:

[0042] At ground elevation, at least one support member is provided at intervals between two adjacent first support columns;

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

[0044] Beneficial effect: By first setting up support components at the ground level, the first floor or more lower floors can be designed as structures without second support columns, thereby increasing the usable area of ​​the first floor or more lower floors. Attached Figure Description

[0045] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0046] Figure 1 This is a schematic diagram (I) of a construction method for a semi-seat and semi-suspended steel structure according to an embodiment of the present invention.

[0047] Figure 2 for Figure 1 The following is a schematic diagram of the construction steps for a semi-seat and semi-suspended steel structure (II);

[0048] Figure 3 for Figure 1 The following is a schematic diagram of the construction steps for a semi-seat and semi-suspended steel structure (Part 3);

[0049] Figure 4 for Figure 1 The following is a schematic diagram of the construction steps for a semi-seat and semi-suspended steel structure (IV);

[0050] Figure 5 for Figure 1 The schematic diagram of the construction method for a semi-seat and semi-suspended steel structure is shown in Figure 5.

[0051] Figure 6 for Figure 1 The following is a schematic diagram of the construction steps for a semi-seat and semi-suspended steel structure (VI);

[0052] Figure 7 This is a structural diagram of the fixing part and support component of the first crossbeam.

[0053] Explanation of reference numerals in the attached figures:

[0054] 1. First support column; 2. Second support column; 3. First crossbeam; 31. Fixing part; 4. Support component; 5. Truss; 6. Connecting assembly; 61. Ear plate; 62. Connecting plate; 7. Adjusting assembly; 71. Support seat; 72. Pushing component; 8. Second crossbeam. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0056] The following is combined with Figures 1 to 7 The following describes embodiments of the present invention.

[0057] According to an embodiment of the present invention, a construction method for a semi-seat, semi-suspended steel structure is provided for construction between at least two spaced first support columns 1, comprising: spaced at least one second support column 2 between two adjacent first support columns 1; fixing a first crossbeam 3 above the at least one second support column 2, and fixing both ends of the first crossbeam 3 between the two adjacent first support columns 1; fixing at least one support member 4 above the first crossbeam 3; fixing the first crossbeam 3 above the at least one support member 4; fixing at least one second support column 2 above the first crossbeam 3; fixing a truss 5 above the at least one second support column 2, and fixing both ends of the truss 5 between the two adjacent first support columns 1; removing the support member 4; and repeating the above steps.

[0058] By using support member 4 as a temporary support, which can be removed after construction, the floor area can be increased, resulting in a more open view and more flexible layout design. Secondly, by setting support member 4, it can provide support for the second support column 2 during construction. This allows the second support column 2 to be set first, and then the truss 5 to be fixed above it. This bottom-up construction sequence reduces construction difficulty, improves construction quality and safety, and shortens the construction period and reduces construction costs. It avoids fixing the truss 5 first and then setting the second support column 2 below it, which increases construction difficulty and danger due to the distance between the truss 5 and the first crossbeam 3 below it, thus increasing construction costs and time. By setting truss 5, it can provide support for the second support column 2 above it and provide tension for the second support column 2 below it, thereby transferring some of the force to the foundation through the first support column 1. This increases the support force of the second support column 2 on the first crossbeam 3 and prevents serious deformation and displacement of the second support column 2 and the first crossbeam 3 after the support member 4 is removed, thus avoiding danger.

[0059] like Figures 1-6 As shown, in one embodiment, there are two first support columns 1, two second support columns 2, and two support members 4; the first support columns 1 and second support columns 2 are steel columns; the first crossbeam 3 and support members 4 are steel beams; and the truss 5 is a steel truss. As an alternative implementation, there may be one or three first support columns 1, the specific number determined according to actual conditions. Similarly, there may be one or three second support columns 2, the specific number determined according to actual conditions. Likewise, there may be one or three support members 4, the specific number determined according to actual conditions. As an alternative implementation, the support members 4 may also be reinforced concrete columns or a frame structure, as long as they can support two adjacent first crossbeams 3; no further restrictions are imposed here.

[0060] like Figures 1-3 As shown, in one embodiment, before setting two second support columns 2 spaced apart between two adjacent first support columns 1, the method includes: setting two support members 4 spaced apart between two adjacent first support columns 1 at ground level; fixing a first crossbeam 3 above the two support members 4, and fixing both ends of the first crossbeam 3 between the two adjacent first support columns 1. By setting the support members 4 at ground level first, the first floor or more lower floors can be configured to have a structure without second support columns 2, thereby increasing the usable area of ​​the first floor or more lower floors. As an alternative implementation, two second support columns 2 can also be set apart between two adjacent first support columns 1 at ground level, a truss 5 can be fixed above the two second support columns 2, and both ends of the truss 5 can be fixed between the two adjacent first support columns 1.

[0061] like Figure 3 As shown, in one embodiment, before fixing the first crossbeam 3 above the two second support columns 2, the method includes: fixing multiple second crossbeams 8 at intervals between the second support columns 2 and the first crossbeam 3. The two ends of the second crossbeams 8 on both sides are connected to the first support column 1 and the second support column 2, respectively, and the two ends of the second crossbeam 8 in the middle are connected to the two adjacent second support columns 2, respectively. By fixing multiple second crossbeams 8 at intervals between the second support columns 2 and the first crossbeam 3, multiple floors can be formed, thereby improving the space utilization rate. As an alternative implementation, the second crossbeams 8 may not be provided, or only one or two second crossbeams 8 may be provided, and the two ends of the second crossbeams 8 may be connected to the first support column 1 and / or the second support column 2 according to the actual number provided. No further restrictions are imposed here.

[0062] When support member 4 is removed, the second support column 2, the first beam 3, and the truss 5 will undergo vertical deformation due to their own weight and other loads within the floor, and the amount of deformation is proportional to the structural load. To ensure the flatness of each floor, in one embodiment, the size of support member 4 is larger than the preset distance between two adjacent first beams 3 along the height direction. Specifically, the size of support member 4 exceeding the preset distance is adapted to the amount of vertical deformation generated by the second support column 2, the first beam 3, and the truss 5. By setting the size of support member 4 to be larger than the preset distance, the vertical deformation of the second support column 2, the first beam 3, and the truss 5 can be prevented from affecting floors without second support columns 2, such as reducing the height of those floors and thus affecting the usability. As an alternative implementation, multiple trusses 5 can also be used to avoid vertical deformation.

[0063] In one embodiment, three support members 4 are provided, with the height of the support members 4 located near the edge being less than the height of the support members 4 located near the center. By setting the height of the support members 4 near the edge to be less than the height of the support members 4 near the center, the vertical deformation of the second support column 2, the first crossbeam 3, and the truss 5 can be matched. As an alternative implementation, two support members 4 may be provided, with the two support members 4 having the same height when the distances from the edge are the same, and the two support members 4 having different heights when the distances from the edge are different.

[0064] like Figures 3-4As shown, in one embodiment, a fixing part 31 is provided on the side of the first crossbeam 3 near the support member 4, and the support member 4 is fixedly connected to the fixing part 31. Both the support member 4 and the fixing part 31 have an I-shaped cross section; the height of the fixing part 31 is 0.6m. By providing the fixing part 31 on the first crossbeam 3, it is easier to connect it to the support member 4, and the connection is more secure. The 0.6m height of the fixing part 31 facilitates the operator's fixing of the support member 4 and the fixing part 31. As an alternative implementation, the support member 4 can be directly fixedly connected to the first crossbeam 3, or the second support column 2 can pass through the first crossbeam 3 and be fixedly connected to the support member 4; no further restrictions are placed here. As an alternative implementation, the cross section of the support member 4 and the fixing part 31 can also be rectangular or U-shaped, the cross section shape determined according to site conditions; no further restrictions are placed here. As an alternative implementation, the height of the fixing part 31 can also be 0.4m or 0.8m, the height of the fixing part 31 determined according to actual construction conditions; no further restrictions are placed here.

[0065] like Figure 7 As shown, in one embodiment, the support member 4 is fixedly connected to the fixing part 31, including: pre-fixing the support member 4 and the fixing part 31; correcting the perpendicularity between the support member 4 and the fixing part 31; and welding the support member 4 and the fixing part 31. By pre-fixing the support member 4 and the fixing part 31 and then correcting the perpendicularity of the support member 4, the installation accuracy of the support member 4 can be improved, avoiding the support member 4 being tilted, which would affect the construction quality of the first crossbeam 3 and the second support column 2 above it. As an alternative implementation, a sleeve structure can be provided between the support member 4 and the fixing part 31, and the two sides of the sleeve structure can be welded to the support member 4 and the fixing part 31 respectively. Alternatively, a groove can be provided at the end of the fixing part 31, and the support member 4 can be inserted into the groove for fixation to ensure the perpendicularity of the support member 4. No further restrictions are imposed here.

[0066] like Figure 7 As shown, in one embodiment, the support member 4 and the fixing part 31 are detachably connected by a connecting assembly 6 to achieve pre-fixation. The connecting assembly 6 includes: two ear plates 61, respectively fixed to the support member 4 and the fixing part 31, each ear plate 61 having multiple first through holes; and a connecting plate 62, connected between the two ear plates 61, each connecting plate 62 having multiple second through holes. The connecting plate 62 is connected to the ear plates 61 by a connecting member. The connecting member is a bolt. Alternatively, a flat plate can be provided at the ends of both the support member 4 and the fixing part 31, and the two flat plates can be connected by a connecting member. As an alternative embodiment, the connecting member can also be a pin or a cylindrical component; no further limitations are imposed here.

[0067] like Figure 7As shown, in one embodiment, the perpendicularity between the support member 4 and the fixed part 31 is corrected by adjusting the component 7. The adjusting component 7 includes: a support base 71 with an "L"-shaped cross-section, one end of which is fixed to the fixed part 31, and the other end is disposed away from the fixed part 31; and a pushing member 72, one end of which is fixed to the support member 4, and the other end abutting against the inner side of the other end of the support base 71. The pushing member 72 is a jack. In use, the pushing member 72 is gradually extended, causing the support member 4 to rotate away from the pushing member 72, thereby adjusting the perpendicularity between the support member 4 and the fixed part 31. As an alternative implementation, a wedge block can be placed between the support member 4 and the fixed part 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 part 31. As an alternative implementation, the pushing member 72 can also be a telescopic structure.

[0068] like Figure 2 As shown, in one embodiment, before fixing the truss 5 above the two second support columns 2, the method includes: fixing multiple second crossbeams 8 at intervals between the second support columns 2 and the truss 5. The two ends of the second crossbeams 8 on both sides are connected to the first support column 1 and the second support column 2, respectively, and the two ends of the middle second crossbeam 8 are connected to the two adjacent second support columns 2, respectively. By fixing multiple second crossbeams 8 at intervals between the second support columns 2 and the truss 5, multiple floors can be formed, thereby improving the space utilization rate. As an alternative implementation, the second crossbeams 8 may not be provided, or only one or two second crossbeams 8 may be provided, and the two ends of the second crossbeams 8 may be connected to the first support column 1 and / or the second support column 2 according to the actual number provided. No further restrictions are imposed here.

[0069] In one embodiment, before removing the support member 4, the process includes: fixing two second support columns 2 above the truss 5; and fixing a first crossbeam 3 above the two second support columns 2. By fixing the second support columns 2 and the first crossbeam 3 above the truss 5 before removing the support member 4, it is ensured that a connection strength is formed between the truss 5 and the first support column 1 before removing the support member 4, thus avoiding severe deformation of the second support columns 2, the first crossbeam 3, and the truss 5 after removal of the support member 4. As an alternative implementation, after the truss 5 is constructed, the support member 4 can be removed after a connection strength is formed between the truss 5 and the first support column 1, and then subsequent construction can proceed.

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

[0071] In one embodiment, the construction method for a semi-sitting, semi-suspended steel structure is as follows:

[0072] At ground elevation, two support members 4 are installed at intervals between two adjacent first support columns 1;

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

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

[0075] Multiple second crossbeams 8 are fixed at intervals between the second support column 2 and the truss 5;

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

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

[0078] Multiple second crossbeams 8 are fixed at intervals between the second support column 2 and the first crossbeam 3;

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

[0080] Remove support component 4;

[0081] Cut off the fixing part 31;

[0082] Repeat the steps above.

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

Claims

1. A construction method for a semi-seat, semi-suspended steel structure, used for construction between at least two spaced-apart first support columns (1), characterized in that, include: At least one second support column (2) is provided at intervals between two adjacent first support columns (1); Multiple second crossbeams (8) are fixed at intervals between the second support column (2) and the first crossbeam (3). The two ends of the second crossbeam (8) are respectively connected to the first support column (1) and the second support column (2), or the two ends of the second crossbeam (8) are respectively connected to two adjacent second support columns (2). A first crossbeam (3) is fixed above at least one of the second support columns (2), and the 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); The first crossbeam (3) is fixed above at least one of the support members (4); At least one second support column (2) is fixed above the first crossbeam (3); Multiple second crossbeams (8) are fixed at intervals between the second support column (2) and the truss (5). The two ends of the second crossbeams (8) are respectively connected to the first support column (1) and the second support column (2), or the two ends of the second crossbeams (8) are respectively connected to two adjacent second support columns (2). A truss (5) is fixed above at least one of the second support columns (2), and both ends of the truss (5) are fixed between two adjacent first support columns (1); At least one second support column (2) is fixed above the truss (5); The first crossbeam (3) is fixed above at least one of the second support columns (2); Remove the support member (4); Repeat the steps above.

2. The construction method for a semi-sitting, semi-suspended steel structure 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 crossbeams (3).

3. The construction method for a semi-sitting, semi-suspended steel structure according to claim 2, characterized in that, The support member (4) is provided in at least two parts, and the height of the support member (4) located near the edge is less than the height of the support member (4) located near the center.

4. The construction method for a semi-seat, semi-suspended steel structure according to any one of claims 1 to 3, characterized in that, The first crossbeam (3) has a fixing part (31) on the side near the support member (4), and the support member (4) is fixedly connected to the fixing part (31).

5. The construction method for a semi-sitting, semi-suspended steel structure according to claim 4, characterized in that, The support member (4) is fixedly connected to the fixing part (31), including: Pre-fix the support member (4) and the fixing part (31); Correct the perpendicularity between the support member (4) and the fixing part (31); The support member (4) is welded to the fixing part (31).

6. The construction method for a semi-sitting, semi-suspended steel structure according to claim 4, characterized in that, After removing the support member (4), the following is included: Cut off the fixing part (31).

7. The construction method for a semi-sitting, semi-suspended steel structure according to claim 4, characterized in that, The height of the fixing part (31) is 0.6m; And / or, the cross-sections of the support member (4) and the fixing part (31) are both I-shaped.

8. The construction method for a semi-seat / semi-suspended steel structure according to any one of claims 1 to 3, characterized in that, Before at least one second support column (2) is provided at an interval between two adjacent first support columns (1), the following is included: At ground elevation, at least one support member (4) is provided at intervals between two adjacent first support columns (1). The first crossbeam (3) is fixed above at least one of the support members (4), and the two ends of the first crossbeam (3) are fixed between two adjacent first support columns (1).

Images