Expansion joint construction for masonry exterior walls of portal steel frame factory buildings

Abstract

This utility model discloses an expansion joint structure for the masonry outer perimeter wall of a portal steel frame factory building, including two outer perimeter masonry walls and a steel column set on one side of the expansion joint. Several pairs of connecting angle steels are symmetrically arranged along the length of the steel column facing the expansion joint, according to the centerline of the expansion joint. Two of the connecting angle steels in each pair are embedded in the corresponding outer perimeter masonry wall. One of the two outer surfaces of each connecting angle steel at a 270-degree angle is embedded in the corresponding outer perimeter masonry wall, and the other outer surface is flush with the end face of the corresponding outer perimeter masonry wall facing the other outer perimeter masonry wall. A polystyrene board is provided at the junction of each connecting angle steel and the concrete structure of the corresponding outer perimeter masonry wall to release temperature stress. This utility model solves the problem of temperature stress caused by excessively long outer perimeter masonry walls, and the resulting temperature cracks due to deformation differences between the outer perimeter masonry wall and the internal steel structure.

Description

Technical Field

[0001] This utility model relates to the technical field, and in particular to the construction of expansion joints for the outer perimeter walls of masonry structures in portal steel frame factory buildings. Background Technology

[0002] For portal frame steel frame factory buildings with a relatively long longitudinal length, according to the "Technical Specification for Portal Frame Light Steel Structure Buildings", temperature expansion joints are not required within 300 meters of the longitudinal length of the factory building.

[0003] However, for portal steel frame factory buildings with masonry structures as the outer cladding, the steel structure and the masonry outer cladding are two different materials. When the longitudinal length of the masonry outer cladding exceeds 40 to 50 meters, temperature-related cracks are prone to occur. Therefore, if no joints are set in the internal steel structure, it is necessary to set separate temperature-related expansion joints in the masonry outer cladding.

[0004] However, in the existing technology, there is no detailed explanation or example of the expansion joint nodes of the portal steel frame masonry enclosure, and the deformation control of the expansion joint at the connection between the masonry structure and the steel structure is also one of the engineering difficulties.

[0005] In practical applications, existing technology results in most masonry exterior enclosures not having expansion joints, leading to temperature cracking. Moreover, in some areas with large temperature differences, even if expansion joints are installed, they cannot achieve the desired effect.

[0006] Therefore, how to solve the problem of temperature stress caused by excessively long external masonry walls and the deformation difference between the external masonry walls and the internal steel structure, which leads to temperature cracks, has become a technical problem that urgently needs to be solved by those skilled in the art, when it is inconvenient to install expansion joints as a whole in the internal steel structure of ultra-long portal steel frame factory buildings. Utility Model Content

[0007] In view of the above-mentioned defects of the prior art, the present invention provides an expansion joint structure for the outer masonry outer wall of a portal steel frame factory building. The purpose is to solve the problem of temperature stress caused by excessive length of the outer masonry wall and the deformation difference between the outer masonry wall and the inner steel structure, which leads to temperature cracks, when it is inconvenient to install expansion joints as a whole in the internal steel structure of an ultra-long portal steel frame factory building.

[0008] To achieve the above objectives, this utility model discloses an expansion joint structure for the masonry outer perimeter wall of a portal steel frame factory building, comprising two outer perimeter masonry walls extending in the same straight direction, and a steel column disposed on one side of the expansion joint between the two outer perimeter masonry walls.

[0009] The steel column is part of a portal steel frame structure, and the side facing the expansion joint has several pairs of connecting angle steels symmetrically arranged according to the centerline position of the expansion joint along the length direction.

[0010] Two of the connecting angle steels in each pair are respectively embedded in the outer perimeter masonry wall on the corresponding side;

[0011] One of the two outer sides of each of the connecting angle steels, which form a 270-degree angle, is embedded in the corresponding outer perimeter wall, and the other outer side is flush with the end face of the corresponding outer perimeter wall facing the other outer perimeter wall.

[0012] Each of the aforementioned connecting angle steel members is provided with a polystyrene board at the point where it connects to the concrete structure of the corresponding side of the outer perimeter masonry wall to release temperature stress.

[0013] Preferably, all the connecting angle steels are evenly distributed in pairs along the length of the side of the steel column facing the expansion joint.

[0014] Preferably, each of the connecting angle steel pieces is fixed to the steel column by welding.

[0015] More preferably, each of the connecting angle steels and the steel column is welded with double-sided welds; when welding each of the connecting angle steels and the steel column, the corresponding polystyrene board is bonded to the outside of the corresponding connecting angle steel with structural adhesive, and the polystyrene board is fixed by wrapping with wire tape after welding.

[0016] Preferably, the portion of each of the outer perimeter masonry walls in which the corresponding connecting angle steel is embedded is a structural column.

[0017] More preferably, each of the aforementioned structural columns is provided with external retaining wall structural column reinforcement;

[0018] Each of the outer retaining wall structural column reinforcing bars has a matching concave structure at the position of the corresponding connecting angle steel.

[0019] More preferably, each of the structural columns is connected to the main body of the corresponding outer retaining wall by means of toothed joints and horizontal reinforcing bars.

[0020] Preferably, the expansion joint is filled with hemp fiber caulking material.

[0021] The beneficial effects of this utility model are:

[0022] This invention addresses the issue of expansion joints in portal steel frame structures with longitudinal lengths exceeding 300 meters, where regulations do not mandate their installation. In practical engineering applications, temperature-induced cracking frequently occurs in the external masonry walls, with severe cracks potentially penetrating the entire wall and posing safety hazards. This patent addresses this by establishing expansion joints on the external masonry walls as separate structural nodes to reconcile the inconsistent temperature deformation of the steel and masonry materials. This effectively solves the problem of external wall cracking and prevents potential engineering risks.

[0023] The following will further explain the concept, specific structure and technical effects of this utility model in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of this utility model. Attached Figure Description

[0024] Figure 1 This diagram shows a cross-sectional view of an embodiment of the present invention.

[0025] Figure 2 This diagram illustrates the structural connection between the steel column and the angle steel connector in one embodiment of the present invention.

[0026] Figure 3 This diagram shows a structural schematic of the steel column facing the expansion joint in one embodiment of the present invention.

[0027] Figure 4 This diagram illustrates a structural design in which the structural column contains reinforcing bars for an outer retaining wall, according to one embodiment of the present invention. Detailed Implementation

[0028] Example

[0029] like Figures 1 to 3 As shown, the expansion joint structure for the masonry outer perimeter wall of the portal steel frame factory building includes two outer perimeter masonry walls 6 extending in the same straight direction, and a steel column 1 set on one side of the expansion joint 5 between the two outer perimeter masonry walls 6.

[0030] Among them, the steel column 1 is part of the portal steel frame structure, and the side facing the expansion joint 5 is provided with several pairs of connecting angle steels 2 symmetrically arranged according to the centerline position of the expansion joint 5 along the length direction;

[0031] The two connecting angle steels 2 in each pair of connecting angle steels 2 are respectively embedded in the outer perimeter masonry wall 6 on the corresponding side;

[0032] Each connecting angle steel 2 has one of its two outer sides forming a 270-degree angle embedded in the corresponding outer perimeter masonry wall 6, and the other outer side is flush with the end face of the corresponding outer perimeter masonry wall 6 facing the other outer perimeter masonry wall 6.

[0033] Each connecting angle steel 2 is provided with a polystyrene board 3 at the part where it connects with the concrete structure of the corresponding outer perimeter masonry wall 6 to release temperature stress.

[0034] This utility model provides a steel column 1 with a portal steel frame structure on one side of the expansion joint 5 of the two outer perimeter masonry walls 6. On the side of the steel column 1 facing the expansion joint 5, there are several pairs of connecting angle steels 2 symmetrically arranged according to the center line position of the expansion joint 5. Two of the connecting angle steels 2 in each pair are respectively embedded in the outer perimeter masonry wall 6 on the corresponding side, so as to realize the connection between the steel column 1 and the two outer perimeter masonry walls 6 at the expansion joint 5 position.

[0035] Each pair of connecting angle steel 2 is set back to back, with sufficient width for expansion joint 5.

[0036] At each connection point between the angle steel 2 and the concrete structure of the outer masonry wall 6 on the corresponding side, a polystyrene board 3 is provided to release temperature stress, thereby coordinating the temperature deformation of the outer masonry wall.

[0037] The polystyrene board 3 can deform independently when compressed or stretched, which coordinates the deformation difference between the outer perimeter masonry wall 6 and the steel column 1 and releases the temperature stress of the ultra-long outer perimeter masonry structure 6.

[0038] In some embodiments, all the connecting angle steels 2 are evenly distributed in pairs along the length of the side of the steel column 1 facing the expansion joint 5.

[0039] In some embodiments, each connecting angle steel 2 is fixed to the steel column 1 by welding.

[0040] In some embodiments, each connecting angle steel 2 and the steel column 1 are welded with double-sided welds; when welding each connecting angle steel 2 and the steel column 1, structural adhesive is used to bond the corresponding polystyrene board 3 to the outside of the corresponding connecting angle steel 2, and after welding, the polystyrene board 3 is fixed by wrapping with wire tape.

[0041] like Figure 4 As shown, in some embodiments, the portion of each outer perimeter masonry wall 6 where the corresponding connecting angle steel 2 is embedded is a structural column 4.

[0042] This utility model utilizes angle steel 2 as a connector to connect the steel column 1 to the structural column 4 of the outer masonry wall 6.

[0043] In some embodiments, each structural column 4 is provided with outer retaining wall structural column reinforcement 7;

[0044] Each outer perimeter wall structural column reinforcement 7 has a matching concave structure at the corresponding connecting angle steel 2 position.

[0045] In some embodiments, each structural column 4 is connected to the main body of the corresponding outer perimeter masonry wall 6 by means of toothed joints and horizontal reinforcing bars.

[0046] In some embodiments, the expansion joint 5 is filled with hemp fiber caulking material.

[0047] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. An expansion joint structure for the external masonry enclosure wall of a portal steel frame factory building; characterized in that, It includes two outer perimeter masonry walls (6) extending in the same straight direction, and a steel column (1) set on one side of the expansion joint (5) between the two outer perimeter masonry walls (6); The steel column (1) is part of the portal steel frame structure. On the side facing the expansion joint (5), there are several pairs of connecting angle steels (2) symmetrically arranged according to the centerline position of the expansion joint (5) along the length direction. Two of the connecting angle steels (2) in each pair are respectively embedded in the outer perimeter masonry wall (6) on the corresponding side; One of the two outer sides of each of the connecting angle steels (2) at a 270-degree angle is embedded in the corresponding outer perimeter wall (6), and the other outer side is flush with the end face of the corresponding outer perimeter wall (6) facing the other outer perimeter wall (6). Each of the connecting angle steels (2) is provided with a polystyrene board (3) for releasing temperature stress at the part where it connects with the concrete structure of the outer perimeter masonry wall (6) on the corresponding side.

2. The expansion joint structure for the masonry outer enclosure wall of a portal steel frame factory building according to claim 1, characterized in that, All the connecting angle steels (2) are evenly distributed in pairs along the length of the side of the steel column (1) facing the expansion joint (5).

3. The expansion joint structure for the masonry outer enclosure wall of a portal steel frame factory building according to claim 1, characterized in that, Each of the connecting angle steel (2) and the steel column (1) is fixed by welding.

4. The expansion joint structure for the masonry outer enclosure wall of a portal steel frame factory building according to claim 3, characterized in that, Each of the connecting angle steel (2) and the steel column (1) is welded with double-sided welds; when welding each of the connecting angle steel (2) and the steel column (1), the corresponding polystyrene board (3) is bonded to the outside of the corresponding connecting angle steel (2) with structural adhesive. After welding, the polystyrene board (3) is fixed by wrapping with wire tape.

5. The expansion joint structure for the masonry outer enclosure wall of a portal steel frame factory building according to claim 1, characterized in that, Each portion of the outer perimeter masonry wall (6) in which the corresponding connecting angle steel (2) is embedded is a structural column (4).

6. The expansion joint structure for the masonry outer enclosure wall of a portal steel frame factory building according to claim 5, characterized in that, Each of the aforementioned structural columns (4) is provided with outer retaining wall structural column reinforcement (7); Each of the outer retaining wall structural column steel bars (7) has a matching concave structure at the position of the corresponding connecting angle steel (2).

7. The expansion joint structure for the masonry outer enclosure wall of a portal steel frame factory building according to claim 5, characterized in that, Each of the aforementioned structural columns (4) is connected to the main body of the corresponding outer perimeter masonry wall (6) by setting toothed joints and horizontal reinforcing bars.

8. The expansion joint structure for the masonry outer enclosure wall of a portal steel frame factory building according to claim 1, characterized in that, The expansion joint (5) is filled with hemp fiber caulking material.

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