Structural system of a steel structure building and method for installing the same

Abstract

The application discloses a kind of steel structure building's structure system, it includes multiple steel columns, multiple steel main beams and multiple steel secondary beams, the steel column and the steel main beam are connected to form beam-column connection node, the steel main beam and the steel secondary beam are connected to form main-secondary beam connection node;Steel column is hollow structure, steel column is provided with the receiving slot in horizontal direction, the end of steel main beam is provided as cavity structure, the top side of the end of steel main beam is provided with the slot opening communicated with cavity structure, the end of the end of steel main beam is inserted into receiving slot, the cavity structure of steel main beam and the hollow structure of steel column are communicated to form the pouring space of cast-in-place concrete, and cast-in-place concrete is poured into pouring space by slot opening;Connecting assembly is provided on the steel main beam, and the steel secondary beam is connected with the steel main beam by the connecting assembly;The application also discloses the installation method of the above structure system.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of steel structure building, and particularly relates to a structure system of a steel structure building and a method for installing the same. BACKGROUND

[0002] In the prior art steel structure building, H-shaped steel is used to form steel columns and steel main beams, a bracket structure is welded on the steel column, and the end of the steel main beam is placed on the bracket structure and fixed thereon by bolts during installation. The steel secondary beams are fixed by simple bolt connection with the steel main beams. The connection structure of the prior art steel structure building has the following disadvantages. First, the steel main beam is placed on the bracket structure, and the end of the steel main beam is provided with bolt holes, which reduces the strength of the steel main beam. Second, in the case of earthquakes and the like, the bolts are prone to falling out, causing the steel column and the steel main beam to be separated, and there is a certain safety hazard. Third, the bolt connection between the steel main beam and the steel secondary beam requires relatively high installation precision, and the opening of a larger bolt hole that is easy to install and operate will reduce the structural strength of the main beam or the secondary beam, and in the case of earthquakes and the like, the bolts are prone to falling out or slipping, which affects the safety of the building.

[0003] In view of the above, there is an urgent need to provide a new structure system of a steel structure building and a method for installing the same to solve the technical problems of the prior art, such as low connection strength between the steel main beam and the steel column, high installation precision requirement of the main beam and the secondary beam, and poor seismic performance of the structure system. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a structure system of a steel structure building and a method for installing the same to solve the technical problems of the prior art, such as low connection strength between the steel main beam and the steel column, high installation precision requirement of the main beam and the secondary beam, and poor seismic performance of the structure system.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present application is as follows:

[0006] A structure system of a steel structure building, comprising a plurality of steel columns, a plurality of steel main beams and a plurality of steel secondary beams, the steel columns and the steel main beams being connected to form beam-column connection nodes, and the steel main beams and the steel secondary beams being connected to form main-secondary beam connection nodes; the steel column is a hollow structure, and the steel column is provided with a receiving groove in the horizontal direction; the end of the steel main beam is provided with a hollow structure, and the top side of the end of the steel main beam is provided with a slot opening in communication with the hollow structure; the end of the steel main beam is inserted into the receiving groove, the hollow structure of the steel main beam is in communication with the hollow structure of the steel column to form a pouring space for cast-in-place concrete, and cast-in-place concrete is poured into the pouring space through the slot opening; the steel main beam is provided with a connecting assembly, and the steel secondary beam is connected with the steel main beam through the connecting assembly.

[0007] On the basis of the above scheme, in another improved scheme, the inside of the steel column is provided with vertical reinforcing ribs, and the vertical reinforcing ribs are fixed to the inner wall at the accommodating groove. By arranging the vertical reinforcing ribs on the inner wall at the accommodating groove, the strength of the accommodating groove can be improved, and the weakening of the overall rigidity of the steel column caused by the slotting on the steel column can be minimized.

[0008] On the basis of the above scheme, in another improved scheme, the inside of the steel main beam is provided with horizontal reinforcing ribs, and the horizontal reinforcing ribs are fixed to the inner wall of the end of the steel main beam. By arranging the horizontal reinforcing ribs in the inside of the steel main beam, the strength of the end of the steel main beam column can be improved, thereby improving the overall seismic strength of the beam-column connection joint. Moreover, the horizontal reinforcing ribs are arranged on the inner wall of the end of the steel main beam, and a part of the horizontal reinforcing ribs is arranged in the accommodating groove of the steel column. After pouring the cast-in-place concrete, the horizontal reinforcing ribs are anchored in the cast-in-place concrete, and the strength of the steel column is also improved.

[0009] On the basis of the above scheme, in another improved scheme, the beam-column connection joint comprises one steel column, a first steel main beam and a second steel main beam. Two accommodating grooves are arranged on the steel column. A vertical groove is arranged on the end of the first steel main beam. The first steel main beam and the second steel main beam are respectively inserted into the two accommodating grooves perpendicularly to each other, and the end of the second steel main beam is inserted into the vertical groove of the first steel main beam. By arranging two accommodating grooves on the steel column, the connection of the two steel main beams with the steel column is realized. By arranging the vertical groove on the first steel main beam and inserting the end of the second steel main beam into the vertical groove of the first steel main beam, the reliable connection between the first steel main beam and the second steel main beam is realized. After pouring the concrete in the inside of the first steel main beam and the second steel main beam, the reliable connection of the first steel main beam, the second steel main beam and the steel column is formed.

[0010] On the basis of the above scheme, in another improved scheme, the width of the accommodating groove is smaller than the width of the steel column. In this way, the overall safety of the steel column can be avoided from being affected by the accommodating groove.

[0011] On the basis of the above scheme, in another improved scheme, the end of the steel main beam is further provided with a vertical partition plate. The four edges of the vertical partition plate are fixedly connected with the inner wall of the steel main beam. The vertical partition plate and the end of the steel main beam form the cavity structure. In this way, the vertical partition plate plays a blocking role, and ensures that the cast-in-place concrete only fills the end part of the steel main beam connected with the steel column, and cannot fill the middle part of the steel main beam. Therefore, the strength of the entire steel main beam is reduced while the strength of the beam-column connection joint is improved.

[0012] On the basis of the above scheme, in another improved scheme, the length of the horizontal reinforcing rib is smaller than the length of the pouring space. Since the vertical partition plate is arranged, the horizontal reinforcing rib cannot exceed the vertical partition plate. Therefore, after pouring the cast-in-place concrete, the horizontal reinforcing rib is anchored in the cast-in-place concrete.

[0013] In the above scheme, in another improved scheme, the length of the vertical reinforcing rib is greater than the height of the accommodating groove. In this way, the vertical reinforcing rib can ensure the strength of the steel column near the accommodating groove as much as possible.

[0014] In the above scheme, in another improved scheme, the top side of the end of the first steel girder is further provided with a horizontal reinforcing plate. By arranging the reinforcing horizontal plate on the inner wall of the top side of the first steel girder, the strength of the end of the first steel girder is further improved, and the influence of opening the vertical groove at the end of the first steel girder on the first steel girder is reduced.

[0015] In the above scheme, in another improved scheme, the beam-column connection node further comprises a third steel girder, the third steel girder is located on the same straight line as the second steel girder, three accommodating grooves are arranged on the steel column, the vertical grooves are arranged on the vertical sides of the end of the first steel girder, and the second steel girder and the third steel girder are inserted into the accommodating grooves of the steel column and the vertical grooves of the first steel girder respectively. By opening two vertical grooves on the first steel girder, the first steel girder, the second steel girder and the third steel girder form a T-shaped structure; by opening three accommodating grooves on the steel column, the connection between the steel column and the three steel girders is realized.

[0016] In the above scheme, in another improved scheme, the beam-column connection node further comprises a fourth steel girder, the fourth steel girder and the first steel girder are located on the same straight line, four accommodating grooves are arranged on the steel column, and the first steel girder, the second steel girder, the third steel girder and the fourth steel girder are inserted into the accommodating grooves respectively. By opening four accommodating grooves on the steel column, the connection between the steel column and the four steel girders is realized.

[0017] In the above scheme, in another improved scheme, the horizontal reinforcing rib inside the second steel girder and the horizontal reinforcing rib inside the third steel girder are communicated and horizontally pass through the steel column; the horizontal reinforcing rib inside the fourth steel girder and the horizontal reinforcing rib inside the first steel girder are communicated and horizontally pass through the steel column. In this way, the two ends of the horizontal reinforcing rib are arranged in the interiors of the two steel girders respectively, and the steel column and the two steel girders are connected at the same time, thereby improving the integrity and stress performance of the steel column connection node.

[0018] On the basis of the above scheme, in another improved scheme, the connecting assembly comprises a shelf, an upper clamping piece and a lower clamping piece, one end surface of the shelf is fixed to the bottom surface of the steel main beam, the other end surface of the shelf is provided with the lower clamping piece, one end of the upper clamping piece is inserted into the steel main beam and the other end of the upper clamping piece is suspended above the lower clamping piece; the end portion of the steel secondary beam is provided with an open structure, the upper clamping piece and the lower clamping piece are inserted into the open structure of the steel secondary beam, and the bottom surface of the end portion of the steel secondary beam is placed on the upper surface of the shelf. By arranging the shelf, the steel secondary beam can be placed on the shelf, the bearing of the steel secondary beam is realized, the positioning of the steel secondary beam is realized by inserting the upper clamping piece and the lower clamping piece into the end portion of the steel secondary beam, and the displacement of the steel secondary beam is avoided.

[0019] On the basis of the above scheme, in another improved scheme, the upper clamping piece and the lower clamping piece are both made of U-shaped steel plates. The U-shaped steel plate is simple to process and has low cost, and the end of the steel secondary beam can be supported after the upper clamping piece is inserted into the interior of the steel secondary beam.

[0020] The application also provides an installation method of a structural system of a steel structure building, comprising the following steps:

[0021] S1, respectively producing a steel column, a steel main beam and a steel secondary beam, arranging a containing groove at the position where the steel column and the steel main beam are connected, arranging a cavity structure at the end of the steel main beam and a notch at the top side, and arranging a connecting assembly on the steel main beam;

[0022] S2, hoisting and installing the steel column, hoisting the steel main beam and placing the steel main beam on a support, and inserting the end of the end of the steel main beam into the containing groove;

[0023] S3, pouring cast-in-place concrete into the notch of the steel main beam, pouring the cast-in-place concrete into the hollow structure of the steel column through the steel main beam, and pouring the cast-in-place concrete until the cast-in-place concrete fills the hollow structure of the steel column and the cavity structure of the end of the steel main beam, and curing and shaping the concrete;

[0024] S4, hoisting the steel secondary beam and arranging the end portion of the steel secondary beam on the connecting assembly of the steel main beam.

[0025] The technical scheme of the application has the following beneficial technical effects:

[0026] The steel structure building structural system in the application is characterized in that a containing groove is arranged on the steel column, the end of the steel main beam is inserted into the containing groove of the steel column, and the end of the steel main beam is arranged as a hollow structure, cast-in-situ concrete is poured into the end of the steel main beam, and the concrete enters the hollow structure of the steel column and the cavity structure of the steel main beam to anchor the steel column and the steel beam together, thereby further enhancing the connecting strength of the steel main beam and the steel column; the steel main beam is inserted into the steel column to form a through joint, which can better save steel material and improve the fireproof performance. The steel main beam and the steel secondary beam are connected together through the connecting assembly, the connecting assembly is fixedly arranged on the steel main beam, the steel secondary beam can be directly sleeved on the upper clamping piece and the lower clamping piece, the bottom surface of the steel secondary beam is placed on the shelf plate, the installation operation is simple, the connection is reliable, and the technical problems such as weakening of the strength of the steel main beam caused by bolt connection in the prior art are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0027] The accompanying drawings, which form a part of the present application, are used to provide further understanding of the present application, and the illustrative embodiments of the present application and their descriptions are used to explain the present application, and do not constitute improper limitations on the present application.

[0028] Figure 1 It is a structural schematic view of the connecting joint of the steel beam and the steel column in embodiment 1;

[0029] Figure 2 It is a structural schematic view of the steel beam in embodiment 1;

[0030] Figure 3 It is a structural schematic view of the steel column in embodiment 1;

[0031] Figure 4 It is a structural schematic view of the connecting joint of the steel beam and the steel column in embodiment 2;

[0032] Figure 5 It is a structural schematic view of the connecting joint of the steel beam and the steel column in embodiment 3;

[0033] Figure 6 It is a structural schematic view of the connecting joint of the steel beam and the steel column in embodiment 4;

[0034] Figure 7 It is a top view (perspective effect shows the inside of the joint) of the connecting joint of the steel beam and the steel column in embodiment 4;

[0035] Figure 8 It is a structural schematic view of the main-secondary beam connecting joint in embodiment 5;

[0036] Figure 9 It is a top view of Figure 8 ;

[0037] Figure 10 It is an installation structural schematic view of the steel main beam and the connecting assembly in embodiment 5.

[0038] Reference signs:

[0039] 1 - steel column 2 - steel girder 3 - accommodating groove

[0040] 4 - notch 5 - vertical reinforcing rib 6 - horizontal reinforcing rib

[0041] 7 - first steel girder 8 - second steel girder 9 - third steel girder

[0042] 10 - fourth steel girder 11 - steel secondary beam 12 - connecting assembly

[0043] 13 - shelf 14 - upper clamping piece 15 - lower clamping piece DETAILED DESCRIPTION

[0044] The present application will be described in detail below with reference to the drawings, and the description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the present application. In addition, those skilled in the art can combine the features in the embodiments and in different embodiments according to the description in the present document.

[0045] Embodiment 1

[0046] Referring to the drawings of Figure 1 and the drawings of Figure 8 , the structural system of the steel structure building in the embodiment includes a plurality of steel columns, a plurality of steel girders and a plurality of steel secondary beams, the steel columns and the steel girders are connected to form beam-column connection nodes, and the steel girders and the steel secondary beams are connected to form primary-secondary beam connection nodes; the steel column is a hollow structure, the steel column is provided with an accommodating groove in the horizontal direction, the end of the steel girder is provided with a cavity structure, the top side of the end of the steel girder is provided with a notch in communication with the cavity structure, the end of the steel girder is inserted into the accommodating groove, the cavity structure of the steel girder is in communication with the hollow structure of the steel column to form a pouring space for cast-in-place concrete, and cast-in-place concrete is poured into the pouring space through the notch until the cast-in-place concrete fills the hollow structure of the steel column and the cavity structure of the end of the steel girder; the steel girder is provided with a connecting assembly, and the steel secondary beam is connected to the steel girder through the connecting assembly.

[0047] Referring to the drawings of Figure 3 , on the basis of the above-mentioned embodiment, in another improved embodiment, the interior of the steel column is provided with a vertical reinforcing rib, and the vertical reinforcing rib is fixed to the inner wall at the accommodating groove. In another improved embodiment, four vertical reinforcing ribs are respectively fixed to the inner wall at the accommodating groove. By providing four vertical reinforcing ribs at the inner wall of the accommodating groove, the strength of the accommodating groove can be improved, and the weakening of the overall stiffness of the steel column caused by the groove on the steel column can be minimized.

[0048] Referring to the drawings of Figure 2In another improved embodiment, based on the above-mentioned embodiments, horizontal reinforcing bars are arranged in the internal cavity of the steel girder, and the horizontal reinforcing bars are fixed to the inner wall of the end of the steel girder. In another improved embodiment, four horizontal reinforcing bars are fixed to the inner wall of the end of the steel girder. By arranging four horizontal reinforcing bars in the steel girder, the strength of the end of the steel girder column can be improved, thereby improving the overall seismic strength of the beam-column connection joint. Moreover, the horizontal reinforcing bars are arranged on the inner wall of the end of the steel girder, and a part of the horizontal reinforcing bars is arranged in the accommodating groove of the steel column and is anchored in the cast-in-place concrete after the cast-in-place concrete is poured, thereby also improving the strength of the steel column.

[0049] Referring to the accompanying drawings Figure 2 In another improved embodiment, based on the above-mentioned embodiments, two notches and one through hole are arranged on the top side surface of the steel girder. More than one notch is arranged to facilitate the insertion of a grouting pipe at different positions of the steel girder for concrete pouring. The through hole facilitates the exhaust during concrete pouring, and a small grouting pipe can also be used for grouting.

[0050] Referring to the accompanying drawings Figure 3 In another improved embodiment, based on the above-mentioned embodiments, the width of the accommodating groove is smaller than the width of the steel column. In this way, the accommodating groove can avoid affecting the overall safety of the steel column.

[0051] In another improved embodiment, based on the above-mentioned embodiments, the end of the steel girder is further provided with a vertical partition plate, the four edges of the vertical partition plate are fixedly connected with the inner wall of the steel girder, and a cavity structure is formed between the vertical partition plate and the end of the steel girder. In this way, the vertical partition plate plays a blocking role, ensuring that the cast-in-place concrete only fills the end part of the steel girder connected with the steel column and does not fill the middle part of the steel girder, thereby improving the strength of the beam-column connection joint while reducing the strength of the entire steel girder.

[0052] On the basis of the above-mentioned embodiments, in another improved embodiment, the steel girder comprises a plurality of girder units, the girder unit is a box structure with a notched top, an internal hollow, and an open end, and the adjacent two girder units are connected together through a connecting plate and bolts. A plurality of bolt holes are correspondingly provided on the connecting plate and the connecting part of the girder unit, wherein two rows of bolt holes are provided on the connecting plate, and one row of bolt holes is provided on the connecting part of each girder unit. The adjacent two girder units are arranged in the same straight line and the connecting parts are tightly spliced together, the connecting plate is placed in the internal part of the girder unit through the notch, the two rows of bolt holes on the connecting plate correspond to the bolt holes on the two girder units respectively, and then the bolts are inserted into the bolt holes on the girder unit and the connecting plate and fixed through nuts. In this way, the entire steel girder is spliced by a plurality of internally hollow girder units, which is convenient to install and reduces the weight of the steel girder; by welding a vertical partition plate in the internal part of the end of the steel girder, the cast-in-situ concrete can be filled only in the end part of the steel girder. In other embodiments, the middle section of the steel girder can also be produced as a solid structure, and the end is generated as a hollow structure.

[0053] Referring to the accompanying Figure 1 schematic diagram, the construction steps of the connecting joint of one steel column and one steel girder in the embodiment are briefly introduced:

[0054] Firstly, the steel column and the steel girder are respectively produced: the steel column is a square hollow structure, a receiving groove is arranged at the position where the steel column is connected with the steel girder, the size of the receiving groove is slightly larger than the size of the end of the steel girder, and four vertical reinforcing bars are fixed on the inner wall of the receiving groove; the end of the steel girder is provided with a hollow structure and a notch on the top side, the end of the end of the steel girder is an open structure, and four horizontal reinforcing bars are fixed on the inner wall of the end of the steel girder;

[0055] Then, the steel column is hoisted and installed, and then the steel girder is hoisted and placed on the support, and the end of the end of the steel girder is inserted into the receiving groove;

[0056] Finally, cast-in-situ concrete is poured into the notch of the end of the steel girder, the cast-in-situ concrete flows from the open structure of the end of the steel girder into the hollow structure of the steel column, and the pouring is stopped until the cast-in-situ concrete fills the entire hollow structure of the steel column and the hollow structure of the end of the steel girder, and the concrete is cured and shaped.

[0057] Embodiment 2

[0058] Referring to the accompanying Figure 4The beam-column connecting joint in the embodiment includes a steel column, a first steel main beam and a second steel main beam. Two accommodating grooves are formed in the steel column. A vertical groove is further formed in the end of the first steel main beam. The first steel main beam and the second steel main beam are vertically inserted into the two accommodating grooves respectively, and the end of the second steel main beam is inserted into the vertical groove of the first steel main beam. The two steel main beams are connected with the steel column by forming the two accommodating grooves in the steel column. The reliable connection between the first steel main beam and the second steel main beam is realized by inserting the end of the second steel main beam into the vertical groove of the first steel main beam. The first steel main beam and the second steel main beam are reliably connected with the steel column after the concrete is poured into the first steel main beam and the second steel main beam. In the embodiment, the height of the first steel main beam is greater than the height of the end of the second steel main beam. The size of the vertical groove of the first steel main beam is matched with the end of the second steel main beam, so that the end of the second steel main beam can be inserted into the vertical groove without affecting the strength of the end of the first steel main beam. In this way, the end of the second steel main beam is placed on the bottom side surface of the end of the first steel main beam after the end of the second steel main beam is inserted into the vertical groove.

[0059] On the basis of the above embodiment, in another improved embodiment, the length of the horizontal reinforcing rib is less than the length of the pouring space. Since the vertical partition is arranged, the horizontal reinforcing rib cannot exceed the vertical partition. Therefore, after the cast-in-place concrete is poured, the horizontal reinforcing rib is anchored in the cast-in-place concrete.

[0060] On the basis of the above embodiment, in another improved embodiment, the length of the vertical reinforcing rib is greater than the height of the accommodating groove. In this way, the strength of the steel column near the accommodating groove can be ensured as much as possible.

[0061] On the basis of the above embodiment, in another improved embodiment, a horizontal reinforcing plate (not shown in the figure) is further arranged inside the top side of the end of the first steel main beam. By arranging the reinforcing horizontal plate on the inner wall of the top side of the first steel main beam, the strength of the end of the first steel main beam is further improved, and the influence of the vertical groove formed in the end of the first steel main beam on the first steel main beam is reduced.

[0062] Referring to the accompanying drawings, the construction steps of the connecting joint of the steel column and the first steel main beam and the second steel main beam in the embodiment are briefly introduced as follows: Figure 4

[0063] Firstly, the steel column and the steel main beam are respectively produced. The steel column is a square hollow structure. The accommodating grooves are arranged at the positions where the steel column is connected with the steel main beam. The size of the accommodating grooves is slightly greater than the size of the end of the steel main beam. Four vertical reinforcing ribs are fixed on the inner wall of the accommodating grooves. The end of the first steel main beam and the end of the second steel main beam are both arranged with a cavity structure and a slot on the top side. The end of the end is an open structure. Four horizontal reinforcing ribs are fixed on the inner wall of the end. The vertical groove is arranged on the vertical side of the end of the first steel main beam. ​

[0064] Then, the steel column is hoisted and installed, and the first steel main beam is hoisted and placed on the support. The end of the first steel main beam is inserted into a receiving groove of the steel column.

[0065] Next, the second steel main beam was hoisted and placed on the support, and the ends of the second steel main beam were inserted into the other receiving slot of the steel column and the vertical slot of the first steel main beam in sequence.

[0066] Finally, cast-in-place concrete is poured into the slots at the ends of the first and second main steel beams. The concrete flows into the steel columns and continues pouring until it fills the hollow structure of the entire steel column and the hollow structures at the ends of the first and second main steel beams. The construction is then completed by curing the concrete.

[0067] Example 3

[0068] See appendix Figure 5 As illustrated in the diagram, in another improved embodiment based on the above embodiment, the beam-column connection node further includes a third steel main beam. The third steel main beam and the second steel main beam are located on the same straight line. Three receiving slots are provided on the steel column. Vertical slots (not visible in the diagram) are provided on both vertical sides of the end of the first steel main beam. The second and third steel main beams are inserted into the receiving slots of the steel column and the vertical slots of the first steel main beam, respectively. By creating two vertical slots on the first steel main beam, the first, second, and third steel main beams form a T-shaped structure; the connection between the steel column and the three steel main beams is achieved by creating three receiving slots on the steel column.

[0069] See appendix Figure 5 The diagram illustrates the construction steps for the connection nodes in this embodiment:

[0070] First, steel columns and main steel beams are produced separately: the steel columns are square hollow structures, and a receiving groove is set at the connection between the steel column and the main steel beam. The size of the receiving groove is slightly larger than the end size of the main steel beam, and four vertical reinforcing ribs are fixed to the inner wall of the receiving groove; the ends of the first, second, and third main steel beams are all provided with hollow structures and slots on the top side, and the ends are open structures, with four horizontal reinforcing ribs fixed to the inner wall of the ends; vertical grooves are provided on both vertical sides of the end of the first main steel beam.

[0071] Then, the steel column is hoisted and installed, and the first steel main beam is hoisted and placed on the support. The end of the first steel main beam is inserted into a receiving groove of the steel column.

[0072] Next, the second steel main beam is hoisted and placed on the support, and the ends of the second steel main beam are inserted into another receiving slot of the steel column and a vertical slot of the first steel main beam in sequence; then the third steel main beam is hoisted and placed on the support, and the ends of the third steel main beam are inserted into the third receiving slot of the steel column and another vertical slot of the first steel main beam in sequence.

[0073] Finally, cast-in-place concrete is poured into the slots at the ends of the first, second, and third main steel beams. The concrete flows into the steel columns and continues pouring until it fills the hollow structure of the entire steel column and the cavities at the ends of the first, second, and third main steel beams. The construction is then completed by curing the concrete.

[0074] Example 4

[0075] See appendix Figure 6 and attached Figure 7 As illustrated in the diagram, in another improved embodiment based on the above embodiment, the beam-column connection node further includes a fourth steel main beam. The fourth steel main beam and the first reinforced steel main beam are located on the same straight line. Four receiving slots are provided on the steel column, and the first, second, third, and fourth steel main beams are respectively inserted into the receiving slots. The connection between the steel column and the four steel main beams is achieved by providing four receiving slots on the steel column.

[0076] See appendix Figure 7 As illustrated, in this embodiment, the horizontal reinforcing bars inside the second and third main steel beams are connected and pass horizontally through the steel column; the horizontal reinforcing bars inside the fourth and first main steel beams are connected and pass horizontally through the steel column. For ease of installation, a single long steel bar is used to pass through the second, third, and fourth main steel beams simultaneously to form a horizontal reinforcing bar. This arrangement places the two ends of the horizontal reinforcing bar inside the two main steel beams, connecting the steel column and the two main steel beams, thus improving the integrity and load-bearing capacity of the steel column connection joint.

[0077] See appendix Figure 6 As illustrated, the installation steps for the connection nodes between the steel beams and steel columns in this embodiment are as follows:

[0078] First, steel columns and four main steel beams are produced separately: the steel columns are square hollow structures, and receiving grooves are set at the connection between the steel columns and the main steel beams. The size of the receiving grooves is slightly larger than the end size of the main steel beams, and four vertical reinforcing ribs are fixed to the inner wall of the receiving grooves; the ends of the first, second, third, and fourth main steel beams are all provided with hollow structures and slots on the top side. The ends are open structures, and four horizontal reinforcing ribs are fixed to the inner wall of the ends.

[0079] Then, the steel columns are hoisted and installed, and the first, second, third and fourth steel main beams are hoisted in sequence and placed on the supports. The ends of the first, second, third and fourth steel main beams are then inserted into the four receiving slots of the steel columns.

[0080] Next, cast-in-place concrete is poured into the slots at the ends of the first, second, third, and fourth steel main beams. The cast-in-place concrete flows into the steel columns until it fills the hollow structure of the entire steel column and the hollow structures at the ends of the first, second, third, and fourth steel main beams. The pouring is then stopped, and the concrete is cured to complete the construction.

[0081] Example 5

[0082] See appendix Figure 8 To be continued Figure 10 As illustrated, in the primary and secondary beam connection node of this embodiment, the connection assembly includes a shelf, an upper clamp, and a lower clamp. One end surface of the shelf is fixed to the bottom surface of the steel primary beam, and the lower clamp is provided on the surface of the other end. One end of the upper clamp is inserted into the steel primary beam, and the other end is suspended above the lower clamp. The end of the steel secondary beam is set as an open structure, and the upper and lower clamps are inserted into the open structure of the steel secondary beam. The bottom surface of the end of the steel secondary beam rests on the upper surface of the shelf. By setting the shelf, the steel secondary beam can be placed on the shelf, realizing the load-bearing of the steel secondary beam. By inserting the upper and lower clamps into the end of the steel secondary beam, the steel secondary beam is positioned, preventing displacement of the steel secondary beam.

[0083] See appendix Figure 10 As illustrated in the above embodiment, in another improved embodiment, both the upper and lower clamps are made of U-shaped steel plates. U-shaped steel plates are simple to process and have low cost, and the upper clamp, after being inserted into the interior of the secondary steel beam, can provide support for the ends of the secondary steel beam.

[0084] See appendix Figure 8 To be continued Figure 10 The diagram illustrates the installation process of the main and secondary beam connection nodes in this embodiment:

[0085] Firstly, the steel main beam is produced by pressing and welding a steel plate into the main body of the steel main beam, cutting a notch on the top side surface of the steel main beam, cutting an incision on the top of the side surface of the steel main beam connected with the steel secondary beam, inserting the bottom surface of a U-shaped steel plate into the incision to form an upper clamping piece, inserting one end of the U-shaped steel plate into the interior of the steel main beam, and fixing the U-shaped steel plate on the steel main beam by welding; welding a shelf on the bottom surface of the steel main beam, and the one end of the shelf is opposite to the upper clamping piece, welding a U-shaped steel plate on the upper surface of one end of the partition plate to form a lower clamping piece, the width of the shelf is greater than the width of the lower clamping piece, and the lower clamping piece is fixed at the middle of the width direction of the partition plate; the steel secondary beam is produced, and the end of the steel secondary beam is an open structure, the width of the end of the steel secondary beam is greater than the width of the upper clamping piece and the lower clamping piece, and the width of the end of the steel secondary beam is less than the width of the shelf;

[0086] Secondly, two steel main beams are hoisted, and the two ends of the steel main beams are connected with the steel columns, the steel secondary beam is hoisted, the end of the steel secondary beam is clamped on the upper clamping piece and the lower clamping piece of one of the steel main beams, and the bottom surface of the end of the steel secondary beam is placed on the shelf; the upper clamping piece is tightly pressed against the top side inner wall of the end of the steel secondary beam to bear part of the weight of the steel secondary beam;

[0087] Finally, the other end of the steel secondary beam is connected with the connecting assembly of the other steel main beam.

[0088] The above only describes the preferred embodiments of the present application, and it should be noted that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should be considered as the protection scope of the present application.

Claims

1. A method for installing a structural system of a steel structure building, characterized in that, The structural system of the steel structure building includes multiple steel columns, multiple main steel beams, and multiple secondary steel beams. The steel columns and main steel beams are connected to form beam-column connection nodes, and the main steel beams and secondary steel beams are connected to form main-secondary beam connection nodes. The steel columns are hollow structures with horizontal receiving grooves. The ends of the main steel beams are hollow structures with slots communicating with the hollow structures on the top side of the ends. The ends of the main steel beams are inserted into the receiving grooves. The hollow structures of the main steel beams and the hollow structures of the steel columns communicate to form a casting space for cast-in-place concrete. Cast-in-place concrete is poured into the casting space through the slots. The main steel beams are equipped with connecting components, and the secondary steel beams are connected to the main steel beams through these connecting components. The width of the receiving grooves is smaller than the width of the steel columns. The internal cavity of the steel main beam is provided with horizontal reinforcing ribs, which are fixed to the inner wall of the end of the steel main beam; the beam-column connection node includes a steel column, a first steel main beam, and a second steel main beam. The steel column has two receiving slots, and the end of the first steel main beam is also provided with a vertical slot. The first steel main beam and the second steel main beam are inserted into the two receiving slots perpendicularly to each other, and the end of the second steel main beam is inserted into the vertical slot of the first steel main beam. The connecting assembly includes a shelf, an upper clamp, and a lower clamp. One end of the shelf is fixed to the bottom surface of the main steel beam, and the lower clamp is provided on the surface of the other end. One end of the upper clamp is inserted into the main steel beam, and the other end is suspended above the lower clamp. The end of the secondary steel beam is configured as an open structure, and the upper clamp and the lower clamp are inserted into the open structure of the secondary steel beam. The bottom surface of the end of the secondary steel beam rests on the upper surface of the shelf. The installation method of the structural system of the steel structure building specifically includes the following steps: S1. Produce steel columns, steel main beams and steel secondary beams respectively. Set up receiving grooves at the connection between the steel columns and the steel main beams. Set up a cavity structure at the end of the steel main beams and set up a groove on the top side. Set up connecting components on the steel main beams. S2. Hoist and install the steel columns, hoist the main steel beam and place it on the support, inserting the end of the main steel beam into the receiving groove; S3. Pour cast-in-place concrete into the slot of the steel main beam. The cast-in-place concrete flows through the steel main beam into the hollow structure of the steel column until the cast-in-place concrete fills the hollow structure of the entire steel column and the cavity structure at the end of the steel main beam, and the concrete is cured and formed. S4. Lift the secondary steel beam and place the end of the secondary steel beam on the connecting assembly of the main steel beam.

2. The installation method of the structural system of the steel structure building according to claim 1, characterized in that, The steel column is provided with vertical reinforcing ribs inside, and the vertical reinforcing ribs are fixed to the inner wall of the receiving groove.

3. The installation method of the structural system of the steel structure building according to claim 1, characterized in that, A horizontal reinforcing plate is also provided inside the top side of the end of the first steel main beam.

4. The installation method of the structural system of the steel structure building according to claim 2, characterized in that, The beam-column connection node also includes a third steel main beam, which is located on the same straight line as the second steel main beam. The steel column is provided with three receiving slots. The vertical slots are provided on both sides of the end of the first steel main beam. The second steel main beam and the third steel main beam are respectively inserted into the receiving slots of the steel column and the vertical slots of the first steel main beam.

5. The installation method of the structural system of the steel structure building according to claim 3, characterized in that, The beam-column connection node also includes a fourth steel main beam, which is located on the same straight line as the first steel main beam. The steel column is provided with four receiving slots, and the first steel main beam, the second steel main beam, the third steel main beam and the fourth steel main beam are respectively inserted into the receiving slots.

6. The installation method of the structural system of the steel structure building according to claim 4, characterized in that, The horizontal reinforcing ribs inside the second main steel beam are connected to the horizontal reinforcing ribs inside the third main steel beam and pass horizontally through the steel column; the horizontal reinforcing ribs inside the fourth main steel beam are connected to the horizontal reinforcing ribs inside the first main steel beam and pass horizontally through the steel column.

Images