Steel structure construction method

Abstract

The application belongs to the technical field of building construction, and discloses a steel structure construction method, which comprises the following steps: S1, preparing a reinforcing part, connecting the reinforcing part with a special steel component, and arranging the special steel component on a core tube; S2, connecting the reinforcing part to a floor slab, temporarily not connecting the special steel component with the floor slab, and allowing the special steel component to move along the vertical direction while being constrained by the reinforcing part to move along the horizontal direction; S3, arranging a tower, temporarily supporting the overhanging end of an in-site overhanging truss on the tower, and connecting the fixed end of the in-site overhanging truss and the fixed end of an out-site overhanging truss to the two sides of the core tube, respectively; and S4, removing the tower and connecting the special steel component with the floor slab. After the tower is removed, the force received by the core tube is borne by the reinforcing part, and is not applied to the special steel component, so that the special steel component with small internal stress of the structure is not prone to deformation, and the construction precision and safety are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, in particular to a steel structure construction method. BACKGROUND

[0002] With the continuous development of architectural design, more and more special-shaped steel structures gradually appear, and at the same time, in order to reduce the amount of steel, special steel members with small internal stress are widely used in the roof steel structure of large venues. However, such special steel members are prone to deformation due to excessive pressure during construction, especially after the tower of the supporting steel structure cantilever truss is removed, the special steel members connected to the floor are forced to deform, which easily causes the construction precision to decrease and even construction safety hazards. SUMMARY

[0003] The purpose of the present application is to provide a steel structure construction method, which can prevent special steel members with small internal stress from deforming during construction, and improve the construction precision and safety.

[0004] To achieve this purpose, the present application adopts the following technical solutions:

[0005] The steel structure construction method comprises the following steps:

[0006] S1, preparing a reinforcing member, connecting the reinforcing member with the special steel member, and arranging the special steel member on the core tube;

[0007] S2, connecting the reinforcing member to the floor, and temporarily not connecting the special steel member to the floor, the reinforcing member constraining the movement of the special steel member in the horizontal direction, and allowing the special steel member to move in the vertical direction;

[0008] S3, arranging a tower, temporarily supporting the cantilever end of the in-field cantilever truss on the tower, and connecting the fixed end of the in-field cantilever truss and the fixed end of the out-field cantilever truss to the two sides of the core tube, respectively;

[0009] S4, removing the tower, and connecting the special steel member to the floor.

[0010] Optionally, between the S3 and the S4, the following steps are further included:

[0011] Tensioning the pull rod of the out-field cantilever truss.

[0012] Optionally, the cantilever end of the out-field cantilever truss is connected with a tensioning mechanism for tensioning the pull rod of the out-field cantilever truss.

[0013] Optionally, the special steel member is a cross steel, comprising a first plate, a second plate and a third plate, all of which are perpendicular to the floor, the first plate is parallel to the third plate, and the second plate is perpendicular to the first plate, the reinforcing member comprises a first connecting plate, a second connecting plate, a third connecting plate and a fourth connecting plate, the first connecting plate connects the first plate and the second plate, the second connecting plate connects the second plate and the third plate, the third connecting plate connects the first connecting plate and the floor, and the fourth connecting plate connects the second connecting plate and the floor.

[0014] Optionally, the reinforcing member further comprises a first locking pin and a second locking pin, the first connecting plate is provided with a first hole, the second connecting plate is provided with a second hole, the third connecting plate is provided with a third hole, and the fourth connecting plate is provided with a fourth hole, the first locking pin is arranged in the first hole and the third hole, and the second locking pin is arranged in the second hole and the fourth hole.

[0015] Optionally, the outer diameter of the first locking pin is equal to the diameter of the first hole, the third hole is a long hole extending in the vertical direction, the diameter of the second locking pin is equal to the diameter of the second hole, and the fourth hole is a long hole extending in the vertical direction.

[0016] Optionally, the first connecting plate is parallel to the first plate, and the second connecting plate is parallel to the second plate.

[0017] Optionally, the S1 further comprises:

[0018] The computer simulation determines the stress borne by the special steel member.

[0019] Optionally, the reinforcing member and the special steel member are processed into one body in the processing stage.

[0020] Optionally, the S4 further comprises:

[0021] The reinforcing member is removed from the floor and the special steel member.

[0022] The beneficial effects of the present application are as follows:

[0023] The steel structure construction method provided by this invention provides vertical support for the towers supporting the cantilevered trusses at their cantilever ends when installing the inner side cantilevered trusses onto the core tube. This prevents the special steel components at the connection between the core tube and the floor slab from being stressed. After both the inner and outer side cantilevered trusses are installed, the towers are removed. Without the vertical support provided by the towers, the inner side cantilevered trusses undergo the designed deformation. The outer side cantilevered trusses and the core tube are stressed, and the outer side cantilevered trusses also undergo the designed deformation. The core tube experiences a slight vertical displacement relative to the floor slab. Because the reinforcing members are connected to the floor slab, the special steel components are not temporarily connected to the floor slab. Furthermore, the reinforcing members constrain the horizontal movement of the special steel components but allow vertical movement. Therefore, the force on the core tube is borne by the reinforcing members and not applied to the special steel components. Consequently, the special steel components with low internal stress are less prone to deformation. After the designed deformation of the steel structure is completed, the structure is stable. The special steel components are connected to the floor slab, and the stress on the special steel components is within a bearable range, making them less prone to deformation. This steel structure construction method makes special steel components with low internal stress less prone to deformation during construction, thus improving construction accuracy and safety. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a tower supporting a steel structure provided in an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the tower after dismantling, provided in an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the reinforcing member after removal, provided in an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the first connection between the reinforcing member and the special steel component provided in an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the second connection between the reinforcing member and the special steel component provided in the embodiment of the present invention.

[0029] In the picture:

[0030] 100. Floor slab; 1. Inner side cantilever truss; 2. Outer side cantilever truss; 3. Core tube; 4. Reinforcing member; 41. First connecting plate; 42. Second connecting plate; 43. Third connecting plate; 431. Third hole; 44. Fourth connecting plate; 45. First locking pin; 46. Second locking pin; 5. Special steel component; 51. First plate; 52. Second plate; 53. Third plate; 6. Tower; 7. Tensioning mechanism. Detailed Implementation

[0031] The application will be further described below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the application and not to limit the application. In addition, it should be noted that only the parts related to the application are shown in the drawings for the convenience of description.

[0032] In the description of the application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0033] In the application, unless otherwise explicitly specified and limited, "on" or "under" the first feature of the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0034] In the description of the embodiments, the terms "up", "down", "right", and other orientation or position relationships are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. In addition, the terms "first" and "second" are only used to distinguish in description and have no special meaning.

[0035] The technical solutions of the application will be further described below in conjunction with the drawings and specific embodiments.

[0036] The embodiment provides a steel structure construction method, and the steel structure includes an indoor side cantilever truss 1, an outdoor side cantilever truss 2 and a core tube 3, as shown in the figure. Figures 1-3 The steel structure construction method includes the following steps:

[0037] S1, preparing a reinforcing part 4, connecting the reinforcing part 4 with a special steel member 5, and arranging the special steel member 5 on the core tube 3;

[0038] S2, connecting the reinforcing member 4 to the floor 100, and temporarily not connecting the special steel member 5 to the floor 100, the reinforcing member 4 restricts the movement of the special steel member 5 in the horizontal direction and allows the movement of the special steel member 5 in the vertical direction;

[0039] S3, setting the tower 6, temporarily supporting the overhanging end of the overhanging truss 1 on the tower 6, and connecting the fixed end of the overhanging truss 1 on the field side and the fixed end of the overhanging truss 2 on the field side to the two sides of the core tube 3, respectively;

[0040] S4, removing the tower 6 and connecting the special steel member 5 to the floor 100.

[0041] When the overhanging truss 1 on the field side is installed on the core tube 3, the tower 6 supported on the overhanging end thereof provides vertical support force, avoiding the stress of the special steel member 5 at the connection between the core tube 3 and the floor 100. After the overhanging truss 1 on the field side and the overhanging truss 2 on the field side are both installed, the tower 6 is removed, the vertical support force provided by the tower 6 is lost, the overhanging truss 1 on the field side deforms as expected in design, the overhanging truss 2 on the field side and the core tube 3 are stressed, the overhanging truss 2 on the field side also deforms as expected in design, and the core tube 3 is slightly displaced in the vertical direction relative to the floor 100. Since the reinforcing member 4 is connected to the floor 100, the special steel member 5 is temporarily not connected to the floor 100, and the reinforcing member 4 restricts the movement of the special steel member 5 in the horizontal direction and allows the movement of the special steel member 5 in the vertical direction, the force on the core tube 3 is borne by the reinforcing member 4 and is not applied to the special steel member 5, so that the special steel member 5 with small internal stress of the structure is not prone to deformation. After the deformation of the steel structure as expected in design is completed, the structure is stable, the special steel member 5 is connected to the floor 100, and the special steel member 5 is stressed within a bearable range and is not prone to deformation. The steel structure construction method makes the special steel member 5 with small internal stress of the structure not prone to deformation during construction, improving the construction precision and safety.

[0042] Further, as shown in Figure 4 and Figure 5 , the special steel member 5 is a cross steel, including a first plate 51, a second plate 52 and a third plate 53 all perpendicular to the floor 100, the first plate 51 is parallel to the third plate 53, and the second plate 52 is perpendicular to the first plate 51. The reinforcing member 4 includes a first connecting plate 41, a second connecting plate 42, a third connecting plate 43 and a fourth connecting plate 44. The first connecting plate 41 connects the first plate 51 and the second plate 52, the second connecting plate 42 connects the second plate 52 and the third plate 53, the third connecting plate 43 connects the first connecting plate 41 and the floor 100, and the fourth connecting plate 44 connects the second connecting plate 42 and the floor 100, so that the reinforcing member 4 restricts the movement of the special steel member 5 in the horizontal direction.

[0043] Further, the first connecting plate 41 is parallel to the first plate 51, and the second connecting plate 42 is parallel to the second plate 52, so that the connection between the reinforcing member 4 and the special steel member 5 is tight, and the constraint of the reinforcing member 4 on the special steel member 5 is reliable.

[0044] Further, the reinforcing member 4 further comprises a first locking pin 45 and a second locking pin 46, the first connecting plate 41 is provided with a first hole, the second connecting plate 42 is provided with a second hole, the third connecting plate 43 is provided with a third hole 431, and the fourth connecting plate 44 is provided with a fourth hole, the first locking pin 45 is arranged in the first hole and the third hole 431, and the second locking pin 46 is arranged in the second hole and the fourth hole, so that the first locking pin 45 connects the first connecting plate 41 and the third connecting plate 43, and the second locking pin 46 connects the second connecting plate 42 and the fourth connecting plate 44.

[0045] Further, the outer diameter of the first locking pin 45 is equal to the diameter of the first hole, the third hole 431 is a long hole extending in the vertical direction, the diameter of the second locking pin 46 is equal to the diameter of the second hole, and the fourth hole is a long hole extending in the vertical direction, so that when the second connecting plate 42 and the fourth connecting plate 44 are connected to the floor 100, the special steel member 5 can drive the first connecting plate 41 and the third connecting plate 43 to move away from the floor 100 in the vertical direction.

[0046] Further, the above S1 further comprises: computer simulation to determine the stress of the special steel member 5, so as to determine the installation position of the special steel member 5 and the processing size of the reinforcing member 4.

[0047] Further, the reinforcing member 4 and the special steel member 5 are processed as a whole in the processing stage, the connection is firm, and in the installation stage, they are installed together at the designed position of the core tube 3, which is convenient to operate.

[0048] Further, the above S3 and the above S4 further comprise: tensioning the pull rod of the field outside cantilever truss 2, so that the field outside cantilever truss 2 is stressed, and when the tower 6 is removed, the pull rod of the field outside cantilever truss 2 bears most of the force, further avoiding the deformation of the special steel member 5 on the core tube 3.

[0049] Further, as shown in Figure 1 and Figure 2 , the cantilever end of the field outside cantilever truss 2 is connected with a tensioning mechanism 7 for tensioning the pull rod of the field outside cantilever truss 2.

[0050] Further, as shown in Figure 3 , the above S4 further comprises: removing the reinforcing member 4 from the floor 100 and the special steel member 5 for recycling. Exemplarily, the reinforcing member 4 is welded with the special steel member 5 and the floor 100, and can be removed by cutting.

[0051] Obviously, the above embodiments of the present application are merely exemplary but not intended to limit the embodiments of the present application. Various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the scope of the present application. It is not necessary or possible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. Steel structure construction method, the steel structure includes a field inner side cantilever truss (1), a field outer side cantilever truss (2) and a core tube (3), characterized in that, The steel structure construction method comprises the following steps: S1, preparing a reinforcing member (4), connecting the reinforcing member (4) with a special steel member (5), and arranging the special steel member (5) on a core tube (3); S2, connecting the reinforcing member (4) to a floor (100), and temporarily not connecting the special steel member (5) with the floor (100), so that the reinforcing member (4) restricts the movement of the special steel member (5) in the horizontal direction and allows the special steel member (5) to move in the vertical direction; S3, arranging a tower (6), temporarily supporting the overhanging end of an in-site overhanging truss (1) on the tower (6), and connecting the fixed end of the in-site overhanging truss (1) and the fixed end of an out-site overhanging truss (2) to the two sides of the core tube (3) respectively; S4, removing the tower (6), and connecting the special steel member (5) with the floor (100); The special steel member (5) is a cross-shaped steel, comprising a first plate (51), a second plate (52), and a third plate (53) which are all perpendicular to the floor (100), the first plate (51) is parallel to the third plate (53), and the second plate (52) is perpendicular to the first plate (51), characterized in that the reinforcing member (4) comprises a first connecting plate (41), a second connecting plate (42), a third connecting plate (43), and a fourth connecting plate (44), the first connecting plate (41) connects the first plate (51) and the second plate (52), the second connecting plate (42) connects the second plate (52) and the third plate (53), the third connecting plate (43) connects the first connecting plate (41) and the floor (100), and the fourth connecting plate (44) connects the second connecting plate (42) and the floor (100), so that the reinforcing member (4) restricts the movement of the special steel member (5) in the horizontal direction; The reinforcing member (4) further comprises a first locking pin (45) and a second locking pin (46), the first connecting plate (41) is provided with a first hole, the second connecting plate (42) is provided with a second hole, the third connecting plate (43) is provided with a third hole (431), and the fourth connecting plate (44) is provided with a fourth hole, the first locking pin (45) is arranged in the first hole and the third hole (431), and the second locking pin (46) is arranged in the second hole and the fourth hole; The outer diameter of the first locking pin (45) is equal to the diameter of the first hole, the third hole (431) is an elongated hole extending in the vertical direction, the diameter of the second locking pin (46) is equal to the diameter of the second hole, and the fourth hole is an elongated hole extending in the vertical direction.

2. The steel construction method according to claim 1, characterized by, The S3 and the S4 further comprise: Tensioning the pull rod of the out-site overhanging truss (2).

3. The steel construction method according to claim 2, characterized by, The overhanging end of the out-site overhanging truss (2) is connected with a tensioning mechanism (7) for tensioning the pull rod of the out-site overhanging truss (2).

4. The steel construction method according to claim 1, characterized by, The first connecting plate (41) is parallel to the first plate (51), and the second connecting plate (42) is parallel to the second plate (52).

5. The steel construction method according to any one of claims 1 to 4, characterized in that, The S1 further comprises: Computer simulation to determine the stress borne by the special steel member (5).

6. The steel construction method according to any one of claims 1 to 4, characterized in that, The reinforcing member (4) and the special steel member (5) are processed as a whole in the processing stage.

7. The steel construction method according to any one of claims 1 to 4, characterized in that, The S4 further comprises: Removing the reinforcing member (4) from the floor (100) and the special steel member (5).

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