A portal steel frame structure

Abstract

The utility model relates to the technical field of building engineering discloses a door type steel frame structure, including two steel columns who set up oppositely, one side of two steel columns who set up oppositely is fixed with connecting beam respectively, and the side away from steel column of connecting beam is fixed with first end plate, intermediate connecting subassembly, including first intermediate beam and the second intermediate beam in the right of first intermediate beam, the left and right ends of first intermediate beam are fixed with second end plate and first intermediate end plate respectively, and the both ends of second intermediate beam are fixed with second intermediate end plate and third end plate respectively, the first end plate of left side and second end plate are connected, the first end plate of right side and third end plate are connected, and first intermediate end plate and second intermediate end plate are connected. The utility model discloses through setting up end plate on connecting beam, uses high -strength bolt to fix together with the end plate on connecting beam and the end plate on intermediate beam, and the weak point of intermediate beam and steel column connection avoids the maximum place of bending moment stress, avoids the stress concentration phenomenon of beam root part.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to portal steel frame structures. Background Technology

[0002] In the existing technology, the beam-column connection node of the portal frame is located at the root of the beam, that is, close to the edge of the steel column. An end plate is welded at the upper flange of the steel column and connected to the end plate of the middle beam by high-strength bolts. The root of the beam is the place where the bending moment stress is the maximum, and the connection node is the weak point of the structure. The node is located here, which can easily lead to stress concentration. Utility Model Content

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0004] In view of the problems existing in the above and / or existing steel frame beam-column connection structures, this utility model is proposed.

[0005] Therefore, the problem to be solved by this utility model is that the connection node between the intermediate beam and the steel column is a weak point in the structure, which is prone to stress concentration. This utility model sets a connecting beam on the steel column that extends away from the steel column. By setting an end plate on the connecting beam, and using high-strength bolts to fix the end plate on the connecting beam to the end plate on the intermediate beam, the weak point of the connection between the intermediate beam and the steel column avoids the place with the maximum bending moment stress, thus avoiding stress concentration at the root of the beam.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a portal steel frame structure, comprising,

[0007] Two steel columns are set opposite each other. A connecting beam is fixed on one side of the two steel columns that are set opposite each other. A first end plate is fixed on the side of the connecting beam away from the steel column. Several first connecting holes are opened on the first end plate.

[0008] The intermediate connecting assembly includes a first intermediate beam and a second intermediate beam to the right of the first intermediate beam. The left and right ends of the first intermediate beam are respectively fixed with a second end plate and a first intermediate end plate. The two ends of the second intermediate beam are respectively fixed with a second intermediate end plate and a third end plate. The second end plate and the third end plate are each provided with a plurality of second connecting holes that correspond one-to-one with the first connecting holes. The first intermediate end plate is provided with a plurality of first intermediate connecting holes. The second intermediate end plate is provided with a plurality of second intermediate connecting holes that correspond one-to-one with the first intermediate connecting holes.

[0009] As a preferred embodiment of the portal steel frame structure described in this utility model, it further includes a drainage component connected above the intermediate connecting component. The drainage component includes a first drainage top plate and a second drainage top plate to the right of the first drainage top plate. The upward side of the first drainage top plate slopes downward from right to left, and the upward side of the second drainage top plate slopes downward from left to right. A first intermediate water-blocking part is fixed to the front and rear sides of the first drainage top plate, and a second intermediate water-blocking part is fixed to the front and rear sides of the second drainage top plate.

[0010] As a preferred embodiment of the portal steel frame structure described in this utility model, the end of the first drainage top plate is fixed with a first side water-blocking part, the end of the second drainage top plate is fixed with a second side water-blocking part, and a drainage groove is formed by the inner side of the first side water-blocking part, the inner side of the first intermediate water-blocking part, the inner side of the second intermediate water-blocking part, the inner side of the second side water-blocking part, the upper side of the first drainage top plate and the upper side of the second drainage top plate.

[0011] As a preferred embodiment of the portal steel frame structure described in this utility model, wherein: the ends of the first drainage top plate and the second drainage top plate that are far apart from each other extend out of the corresponding steel column, and the first drainage top plate and the second drainage top plate that extend out of the corresponding steel column have drainage outlets, which are set away from the center of the steel column in the front-back direction, and the inner walls of the ends of the first drainage top plate and the second drainage top plate are respectively fixed with a first diversion plate and a second diversion plate extending in the direction of the corresponding drainage outlet.

[0012] As a preferred embodiment of the portal steel frame structure described in this utility model, a first drainage shell is fixed on the outer side of a first side water-blocking part, a first drainage trough communicating with the corresponding drainage outlet is opened at one end of the first drainage shell relative to the corresponding drainage outlet, and a first drainage hole communicating with the drainage trough is opened on the downward side of the first drainage shell.

[0013] As a preferred embodiment of the portal steel frame structure described in this utility model, a second drainage shell is fixed on the outer side of a second side water-blocking part, a second drainage trough communicating with the corresponding drainage outlet is opened at one end of the second drainage shell relative to the corresponding drainage outlet, and a second drainage hole communicating with the drainage trough is opened on the downward side of the second drainage shell.

[0014] As a preferred embodiment of the portal steel frame structure described in this utility model, wherein: a first intermediate transition plate is fixedly connected to the upper side of the connecting beam on the left and the first intermediate beam; a second intermediate transition plate is fixedly connected to the upper side of the connecting beam on the right and the second intermediate beam; a first connecting part with a downward-facing first connecting groove is fixed to the upper side of the first intermediate transition plate; a first intermediate connecting part with a downward-facing first connecting opening is fixed to the right side of the first intermediate transition plate; the first connecting part is inserted downwards into the first end plate and the second end plate on the left end via the first connecting groove; the second connecting part is inserted downwards into the first intermediate end plate via the first connecting opening; a second connecting part with a downward-facing second connecting groove is fixed to the second intermediate transition plate; and a second connecting part with a downward-facing second connecting opening is fixed to the right side of the second intermediate transition plate. The second intermediate connecting part is inserted downwards into the first and third end plates on the right end via the second connecting groove. The second intermediate connecting part is inserted downwards into the second intermediate end plate via the second connecting port. The second intermediate connecting part and the first intermediate connecting part are attached to each other on opposite sides in the left-right direction. The first connecting parts on the left and right sides of the first connecting groove have first internal fixing holes that correspond one-to-one with the first connecting holes above the left end connecting beam. The second connecting parts on the left and right sides of the second connecting groove have second internal fixing holes that correspond one-to-one with the first connecting holes above the right end connecting beam. Both the first and second intermediate connecting parts have several intermediate fixing holes that correspond one-to-one with the several first intermediate connecting holes above the first intermediate beam.

[0015] As a preferred embodiment of the portal steel frame structure described in this utility model, wherein: a first plug-in sleeve and a first plug-in plate are fixed on the lower side of the first drainage top plate; a first plug-in groove is opened on the downward-facing side of the first plug-in sleeve; the left end of the first plug-in sleeve is inserted into the first connecting part through the first plug-in groove; a first plug-in groove is opened on the downward-facing side of the first plug-in plate; the first plug-in plate is inserted into the first intermediate connecting part through the first plug-in groove; and a first external fixing hole is opened on the first plug-in plate, corresponding one-to-one with a plurality of first internal fixing holes above the first intermediate beam. A second plug-in sleeve and a second plug-in plate are fixed on the lower side of the second drainage top plate; a second plug-in groove is opened on the downward-facing side of the second plug-in sleeve; the second plug-in sleeve is inserted into the second connecting part through the second plug-in groove; a second plug-in groove is opened on the downward-facing side of the second plug-in plate; the second plug-in plate is inserted into the second intermediate connecting part through the second plug-in groove; and a second external fixing hole is opened on the second plug-in plate, corresponding one-to-one with a plurality of second internal fixing holes above the second intermediate beam.

[0016] As a preferred embodiment of the portal steel frame structure described in this utility model, the first intermediate transition plate has a downwardly extending first vertical plate fixed on its left side, and the second intermediate transition plate has a downwardly extending second vertical plate fixed on its right side. The right side of the first vertical plate is attached to the left side of the steel column at the left end, and the right side of the second vertical plate is attached to the right side of the steel column at the right end. Several fastening holes are arranged on both the first and second vertical plates.

[0017] As a preferred embodiment of the portal steel frame structure described in this utility model, the front and rear ends of the first intermediate transition plate and the second intermediate transition plate extend out of the corresponding connecting beams, and the first intermediate transition plate and the second intermediate transition plate extending out of the steel column are respectively provided with a plurality of first fixing holes and second fixing holes. A first fixing rod corresponding to a plurality of first fixing holes is fixed on the lower side of the first drainage top plate, and a second fixing rod corresponding to a plurality of second fixing holes is fixed on the lower side of the second drainage top plate. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0019] Figure 1 This is the front view of the present invention.

[0020] Figure 2 The three-dimensional structure of this utility model Figure 1 .

[0021] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0022] Figure 4 for Figure 2 A magnified view of a section at point B in the middle.

[0023] Figure 5 for Figure 2 A magnified view of a section at point C.

[0024] Figure 6 The three-dimensional structure of this utility model Figure 2 .

[0025] Figure 7 for Figure 6 A magnified view of a section at point D.

[0026] Figure 8 This is a three-dimensional structural diagram of the present invention after one of the drain pipes has been hidden.

[0027] Figure 9 for Figure 8 A magnified view of a section at point E in the middle.

[0028] Figure 10 This is a three-dimensional structural diagram of the present invention after the drainage top plate has been hidden.

[0029] Figure 11 for Figure 10 A magnified view of a section at point F.

[0030] Figure 12 for Figure 10 A magnified view of a section at point G.

[0031] Figure 13 for Figure 10 A magnified view of a section at point H.

[0032] Figure 14 This is a three-dimensional structural diagram of the first drainage top plate in this utility model.

[0033] In the diagram: 100 Intermediate connecting component, 101 Second intermediate beam, 1011 Second intermediate end plate, 1012 Third end plate, 1012-1 Second connecting hole, 102 First intermediate beam, 1021 Second end plate, 1022 First intermediate end plate, 1022-1 First intermediate connecting hole, 200 Drainage component, 201 First intermediate transition plate, 2011 First connecting part, 2011-1 First internal fixing hole, 2011-2 First connecting groove, 2012 First intermediate connecting part, 2012-1 Intermediate fixing hole, 2012-2 First connecting port, 202 Second intermediate transition plate, 2021 Second intermediate connecting part, 2021-1 Second connecting port, 2022 Second connecting part, 2022-1 Second internal fixing hole, 2022-2 Second connecting groove 2023 Second upright plate, 2023-1 First fastening hole, 203 First drainage top plate, 2031 First side water-blocking part, 2031-1 Drain outlet, 2032 First plug sleeve, 2032-1 Third external fixing hole, 2032-2 First plug groove, 2033 First plug plate, 2033-1 First external fixing hole, 2033-2 First plug sink, 2034 First diversion plate, 204 Second drainage top plate, 2041 Second side water-blocking part, 2042 Second plug plate, 2043 Second plug sleeve, 2043-1 Fourth external fixing hole, 2044 Second diversion shell, 2045 Second diversion plate, 2046 Second fixing rod, 205 Drain pipe, 300 Steel column, 301 Connecting beam, 302 First end plate, 302-1 First connecting hole. Detailed Implementation

[0034] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0035] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0037] Example 1: Refer to Figure 1 and Figure 2 This is the first embodiment of the present utility model. This embodiment provides a portal steel frame structure, including two steel columns 300 arranged opposite each other. A connecting beam 301 is fixed on one side of the two steel columns 300 that are arranged opposite each other. The first end plate 302, the connecting beam 301 and the steel column 300 are integrated. The first end plate 302 is fixed on the side of the connecting beam 301 away from the steel column 300. A plurality of first connecting holes 302-1 are opened on the first end plate 302. An intermediate connecting component 100 is connected between the two steel columns 300.

[0038] Specifically, the intermediate connecting assembly 100 includes a first intermediate beam 102 and a second intermediate beam 101 to the right of the first intermediate beam 102. A second end plate 1021 and a first intermediate end plate 1022 are fixed to the left and right ends of the first intermediate beam 102, respectively. A second intermediate end plate 1011 and a third end plate 1012 are fixed to the two ends of the second intermediate beam 101, respectively. Both the second end plate 1021 and the third end plate 1012 have a plurality of second connecting holes 1012-1 corresponding one-to-one with the first connecting holes 302-1. The first intermediate end plate 1022 has a plurality of first intermediate connecting holes 1022-1, and the second intermediate end plate 1011 has a plurality of second intermediate connecting holes corresponding one-to-one with the first intermediate connecting holes 1022-1.

[0039] The steel column 300 is connected to the corresponding intermediate beam via the first end plate 302 on the outwardly extending connecting beam 301. The first end plate 302 on the left end steel column 300 is fixedly connected to the second end plate 1021 on the first intermediate beam 102. The first end plate 302 on the right end steel column 300 is fixedly connected to the third end plate 1012 on the right side of the second intermediate beam 101. The right side of the first intermediate end plate 1022 on the right end of the first intermediate beam 102 and the left side of the second intermediate end plate 1011 on the left end of the second intermediate beam 101 are attached together. The two adjacent end plates are fixedly connected together by bolts, which increases the operating space for tightening bolts and facilitates construction. The connection node between the steel column 300 and the intermediate beam avoids the place with the maximum bending moment stress, which improves the reliability of the connection structure.

[0040] Example 2: Refer to Figures 1-14 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment and can further facilitate orderly drainage.

[0041] Specifically, it also includes a drainage assembly 200 connected above the intermediate connecting assembly 100. The drainage assembly 200 includes a first drainage top plate 203 and a second drainage top plate 204 to the right of the first drainage top plate 203. The upward-facing side of the first drainage top plate 203 slopes downward from right to left, and the upward-facing side of the second drainage top plate 204 slopes downward from left to right. A first intermediate water-blocking part is fixed to the front and rear sides of the first drainage top plate 203, and a second intermediate water-blocking part is fixed to the front and rear sides of the second drainage top plate 204. A first side water-blocking part 2031 is fixed to the end of the first drainage top plate 203, and a second side water-blocking part 2041 is fixed to the end of the second drainage top plate 204. The inner sides of the first side water-blocking part 2031, the first intermediate water-blocking part, and the second intermediate water-blocking part are also included. A drainage trough is formed on the inner side of the second side water-blocking part 2041, the upper side of the first drainage top plate 203, and the upper side of the second drainage top plate 204. The ends of the first drainage top plate 203 and the second drainage top plate 204 that are far apart from each other extend out of the corresponding steel column 300. The ends of the first side water-blocking part 2031 and the second side water-blocking part 2041 that extend out of the corresponding steel column 300 are respectively provided with drainage outlets 2031-1. The drainage outlets 2031-1 are set away from the center of the steel column 300 in the front-back direction. The arrangement of the drainage component 200 does not hinder the connection between the steel column 300 and other beam and column structures. The inner walls of the ends of the first drainage top plate 203 and the second drainage top plate 204 are respectively fixed with a first diversion plate 2034 and a second diversion plate 2045 extending in the direction of the corresponding drainage outlet 2031-1.

[0042] When it rains, rainwater falls into the drainage ditch and flows down the inclined surface to both sides. Under the action of the first diversion plate 2034 and the second diversion plate 2045, the rainwater flows towards the two drainage outlets 2031-1 and is discharged outside the steel column 300 through the two drainage outlets 2031-1. The rainwater will not fall directly down onto the intermediate beam and the steel column 300, but will be discharged outside the intermediate beam and the steel column 300.

[0043] A first drainage shell is fixed to the outside of a first side water-blocking part 2031, and a first drainage hole communicating with the corresponding drainage outlet 2031-1 is opened on the downward side of the first drainage shell; a second drainage shell 2044 is fixed to the outside of a second side water-blocking part 2041, and a second drainage hole communicating with the corresponding drainage outlet 2031-1 is opened on the downward side of the second drainage shell 2044.

[0044] In actual use, drain pipes 205 are respectively fitted onto the first and second drain housings 2044. A connection hole is opened on the upper outer periphery of the drain pipe 205. A connecting screw is driven into the outer wall of the drain housing through the connection hole to fix the upper part of the drain pipe 205 to the drain housing. The rainwater discharged through the drain outlet 2031-1 is discharged downward in an orderly manner through the corresponding drain housing and drain pipe 205.

[0045] Specifically, a first intermediate transition plate 201 is fixedly connected to the upper side of the connecting beam 301 on the left and the first intermediate beam 102, and a second intermediate transition plate 202 is fixedly connected to the upper side of the connecting beam 301 on the right and the second intermediate beam 101. The first intermediate transition plate 201 and the second intermediate transition plate 202 respectively cover the front and rear ends of the connecting beam 301, the first intermediate beam 102 and the steel column 300. A first connecting part 2011 with a downward-facing first connecting groove 2011-2 is fixed on the upper side of the first intermediate transition plate 201. A first connecting part 2011 with a downward-facing first connecting groove 2011-2 is fixed on the right side of the first intermediate transition plate 201. A first intermediate connecting part 2012 has a downward-facing first connecting port 2012-2. The first connecting part 2011 is inserted downwards into the first end plate 302 and the second end plate 1021 on the left end via the first connecting groove 2011-2. A second connecting part 2022 is inserted downwards into the first intermediate end plate 1022 via the first connecting port 2012-2. A second intermediate transition plate 202 is fixed with a second connecting part 2022 having a downward-facing second connecting groove 2022-2. A second intermediate transition plate 202 has a downward-facing second connecting port 2021-2 fixed on its right side. The second intermediate connecting part 2021 and the second connecting part 2022 are inserted downwards into the first end plate 302 and the third end plate 1012 on the right end via the second connecting groove 2022-2. The second intermediate connecting part 2021 is inserted downwards into the second intermediate end plate 1011 via the second connecting port 2021-1. The second intermediate connecting part 2021 and the first intermediate connecting part 2012 are attached together on opposite sides in the left-right direction. The first connecting parts 2011 on the left and right sides of the first connecting groove 2011-2 are provided with openings above the left end connecting beam 301. The first internal fixing holes 2011-1 are one-to-one with the first connecting holes 302-1. The second internal fixing holes 2022-1 are opened on the second connecting parts 2022 on the left and right sides of the second connecting groove 2022-2, which are one-to-one with the first connecting holes 302-1 above the right end connecting beam 301. The first intermediate connecting part 2012 and the second intermediate connecting part 2021 are both opened with several intermediate fixing holes 2012-1. The several intermediate fixing holes 2012-1 are one-to-one with the several first intermediate connecting holes 1022-1 above the first intermediate beam 102.A first insertion sleeve 2032 and a first insertion plate 2033 are fixed to the lower side of the first drainage top plate 203. A first insertion groove 2032-2 is opened on the downward-facing side of the first insertion sleeve 2032. The left end of the first insertion sleeve 2032 is inserted into the first connecting part 2011 through the first insertion groove 2032-2. Several third external fixing holes 2032-1, corresponding one-to-one with the first inner fixing holes 2011-1, are opened on the first insertion sleeves 2032 on both the left and right sides of the first insertion groove 2032-2. A first insertion recess 2033-2 is opened on the downward-facing side of the first insertion plate 2033. The first insertion plate 2033 is inserted into the first middle connecting part 2011 through the first insertion recess 2033-2. On the connecting part 2012, the first plug-in plate 2033 has first external fixing holes 2033-1 corresponding one-to-one with the first internal fixing holes 2011-1 above the first intermediate beam 102; the second drain top plate 204 has a second plug-in sleeve 2043 and a second plug-in plate 2042 fixed on its lower side, and the second plug-in sleeve 2043 has a second plug-in groove on its downward side, through which the second plug-in sleeve 2043 is inserted into the second connecting part 2022. The second plug-in sleeve 2043 on the left and right sides of the second plug-in groove has a number of fourth external fixing holes 2043-1 corresponding one-to-one with the second internal fixing holes 2022-1, and the second plug-in plate 2042 has a number of fourth external fixing holes 2043-1 corresponding one-to-one with the second internal fixing holes 2022-1 on its downward side. A second insertion slot is provided, and a second insertion plate 2042 is inserted into the second intermediate connecting part 2021 through the second insertion slot. The second insertion plate 2042 has several second external fixing holes corresponding to the second internal fixing holes 2022-1 above the second intermediate beam 101. A downwardly extending first vertical plate is fixed to the left side of the first intermediate transition plate 201, and a downwardly extending second vertical plate 2023 is fixed to the right side of the second intermediate transition plate 202. The right side of the first vertical plate is attached to the left side of the steel column 300 at the left end, and the right side of the second vertical plate 2023 is attached to the right side of the steel column 300 at the right end. Several first fastening holes 202 are arranged on both the first vertical plate and the second vertical plate 2023. 3-1, several second fastening holes corresponding one-to-one with the first fastening holes 2023-1 are arranged on the outer side of the steel column 300; the front and rear ends of the first intermediate transition plate 201 and the second intermediate transition plate 202 extend out of the corresponding connecting beam 301, and several first fixing holes and second fixing holes are respectively opened on the first intermediate transition plate 201 and the second intermediate transition plate 202 extending out of the steel column 300; a first fixing rod corresponding one-to-one with the several first fixing holes is fixed on the lower side of the first drainage top plate 203; a second fixing rod 2046 corresponding one-to-one with the several second fixing holes is fixed on the lower side of the second drainage top plate 204; the first fixing rod and the second fixing rod 2046 have external threads.

[0046] When installing the drainage assembly 200, firstly, the first drainage top plate 203 is fitted onto the first intermediate transition plate 201, and the second drainage top plate 204 is fitted onto the second intermediate transition plate 202. The first drainage top plate 203 and the first intermediate transition plate 201, fitted together, are inserted into the first end plate 302 and the second end plate 1021 on the left end via the first connecting groove 2011-2, and simultaneously inserted into the first intermediate end plate 1022 via the first connecting port 2012-2. The second drainage top plate 204 and the second intermediate transition plate, fitted together, are then connected together. Plate 202 is inserted into the first end plate 302 and the third end plate 1012 on the right end via the second connecting groove 2022-2, and simultaneously inserted into the second intermediate end plate 1011 via the second connecting port 2021-1. After passing a bolt through the first external fixing hole 2033-1, the intermediate fixing hole 2012-1, the first intermediate connecting hole 1022-1, the second intermediate connecting hole, and the second external fixing hole, a nut is screwed onto the bolt on the outside of the second insertion plate 2042. The nut is tightened onto the outside of the second insertion plate 2042. The bolt is then inserted through... The third external fixing hole 2032-1, the first internal fixing hole 2011-1, the first connecting hole 302-1, and the second connecting hole 1012-1 are connected by screwing a nut onto the bolt outside the first insert sleeve 2032. The nut is pressed against the outside of the first insert sleeve 2032. After the bolt passes through the fourth external fixing hole 2043-1, the corresponding intermediate fixing hole 2012-1, the third connecting hole, and the right first connecting hole 302-1, the nut is screwed onto the bolt outside the second insert sleeve 2043. The nut is pressed against the second insert sleeve 2012-1. On the outside of 43, after passing bolts through the first fastening hole 2023-1 and the second fastening hole, nuts are screwed onto the bolts and pressed onto the steel column 300 to further fix the first intermediate transition plate 201 and the second intermediate transition plate 202 onto the steel column 300. Several nuts are screwed onto the first fixing rod and the second fixing rod 2046 respectively until the nuts are pressed onto the lower side of the intermediate transition plate to further fix the drainage top plate onto the corresponding intermediate transition plate, thereby achieving a reliable connection between the drainage component 200 and the beam and column, and facilitating disassembly and maintenance.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A portal steel frame structure, characterized in that: include, Two steel columns are set opposite each other. A connecting beam is fixed on one side of the two steel columns that are set opposite each other. A first end plate is fixed on the side of the connecting beam away from the steel column. Several first connecting holes are opened on the first end plate. The intermediate connecting assembly includes a first intermediate beam and a second intermediate beam to the right of the first intermediate beam. The left and right ends of the first intermediate beam are respectively fixed with a second end plate and a first intermediate end plate. The two ends of the second intermediate beam are respectively fixed with a second intermediate end plate and a third end plate. The second end plate and the third end plate are each provided with a plurality of second connecting holes that correspond one-to-one with the first connecting holes. The first intermediate end plate is provided with a plurality of first intermediate connecting holes. The second intermediate end plate is provided with a plurality of second intermediate connecting holes that correspond one-to-one with the first intermediate connecting holes.

2. The portal steel frame structure as described in claim 1, characterized in that: It also includes a drainage assembly connected above the intermediate connecting assembly. The drainage assembly includes a first drainage top plate and a second drainage top plate to the right of the first drainage top plate. The upward side of the first drainage top plate slopes downward from right to left, and the upward side of the second drainage top plate slopes downward from left to right. A first intermediate water-blocking part is fixed to the front and rear sides of the first drainage top plate, and a second intermediate water-blocking part is fixed to the front and rear sides of the second drainage top plate.

3. A portal steel frame structure as described in claim 2, characterized in that: The first drainage top plate has a first side water-blocking part fixed at its end, and the second drainage top plate has a second side water-blocking part fixed at its end. A drainage groove is formed by the inner side of the first side water-blocking part, the inner side of the first intermediate water-blocking part, the inner side of the second intermediate water-blocking part, the inner side of the second side water-blocking part, the upper side of the first drainage top plate, and the upper side of the second drainage top plate.

4. A portal steel frame structure as described in claim 3, characterized in that: The ends of the first drainage top plate and the second drainage top plate, which are far apart from each other, extend out of the corresponding steel column. The first drainage top plate and the second drainage top plate extending out of the corresponding steel column have drainage outlets. The drainage outlets are set away from the center of the steel column in the front-back direction. The inner walls of the ends of the first drainage top plate and the second drainage top plate are respectively fixed with a first diversion plate and a second diversion plate extending in the direction of the corresponding drainage outlet.

5. A portal steel frame structure as described in claim 4, characterized in that: A first drainage shell is fixed to the outside of a first side water-blocking part. The first drainage shell has a first drainage trough that communicates with the corresponding drainage outlet at one end relative to the drainage outlet. The first drainage hole that communicates with the drainage trough is opened on the downward side of the first drainage shell.

6. A portal steel frame structure as described in claim 4, characterized in that: A second drainage shell is fixed to the outside of a second side water-blocking part. The second drainage shell has a second drainage trough that communicates with the corresponding drainage outlet at one end relative to the drainage outlet. The second drainage shell has a second drainage hole that communicates with the drainage trough on the downward side.

7. A portal steel frame structure as described in any one of claims 2 to 6, characterized in that: A first intermediate transition plate is fixedly connected to the upper side of the connecting beam on the left and the first intermediate beam. A second intermediate transition plate is fixedly connected to the upper side of the connecting beam on the right and the second intermediate beam. A first connecting part with a downward-facing first connecting groove is fixed to the upper side of the first intermediate transition plate. A first intermediate connecting part with a downward-facing first connecting opening is fixed to the right side of the first intermediate transition plate. The first connecting part is inserted downwards into the first end plate and the second end plate on the left end via the first connecting groove. A second connecting part is inserted downwards into the first intermediate end plate via the first connecting opening. A second connecting part with a downward-facing second connecting groove is fixed to the second intermediate transition plate. A second intermediate connecting part with a downward-facing second connecting opening is fixed to the right side of the second intermediate transition plate. The second connecting groove is inserted downwards onto the first and third end plates on the right end. The second intermediate connecting part is inserted downwards onto the second intermediate end plate via the second connecting port. The second intermediate connecting part and the first intermediate connecting part are attached together on opposite sides in the left-right direction. The first connecting parts on the left and right sides of the first connecting groove have first internal fixing holes that correspond one-to-one with the first connecting holes above the left end connecting beam. The second connecting parts on the left and right sides of the second connecting groove have second internal fixing holes that correspond one-to-one with the first connecting holes above the right end connecting beam. The first intermediate connecting part and the second intermediate connecting part each have several intermediate fixing holes that correspond one-to-one with the several first intermediate connecting holes above the first intermediate beam.

8. A portal steel frame structure as described in claim 7, characterized in that: A first plug sleeve and a first plug plate are fixed to the lower side of the first drainage top plate. A first plug groove is opened on the downward side of the first plug sleeve. The first plug sleeve at the left end is inserted into the first connecting part through the first plug groove. A first plug groove is opened on the downward side of the first plug plate. The first plug plate is inserted into the first intermediate connecting part through the first plug groove. The first plug plate has first external fixing holes that correspond one-to-one with the several first internal fixing holes above the first intermediate beam. A second plug sleeve and a second plug plate are fixed to the lower side of the second drainage top plate. A second plug groove is opened on the downward side of the second plug sleeve. The second plug sleeve is inserted into the second connecting part through the second plug groove. A second plug groove is opened on the downward side of the second plug plate. The second plug plate is inserted into the second intermediate connecting part through the second plug groove. The second plug plate has second external fixing holes that correspond one-to-one with the several second internal fixing holes above the second intermediate beam.

9. A portal steel frame structure as described in claim 8, characterized in that: The first intermediate transition plate has a downwardly extending first vertical plate fixed on its left side, and the second intermediate transition plate has a downwardly extending second vertical plate fixed on its right side. The right side of the first vertical plate is attached to the left side of the steel column at the left end, and the right side of the second vertical plate is attached to the right side of the steel column at the right end. Several fastening holes are arranged on both the first and second vertical plates.

10. A portal steel frame structure as described in claim 8, characterized in that: The front and rear ends of the first intermediate transition plate and the second intermediate transition plate extend out of the corresponding connecting beams, respectively. The first intermediate transition plate and the second intermediate transition plate extending out of the steel column are respectively provided with a number of first fixing holes and second fixing holes. The lower side of the first drainage top plate is fixed with a first fixing rod corresponding to a number of first fixing holes, and the lower side of the second drainage top plate is fixed with a second fixing rod corresponding to a number of second fixing holes.

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