A support lintel structure for reconstruction of door and window openings of block walls
By symmetrically setting steel lintels on both sides of the block wall and fixing them with tie rods to form an integral structure, the problems of long construction period, high cost and insufficient load-bearing capacity in the existing technology are solved, and the lintel renovation is achieved quickly, economically and efficiently.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN CONSTR GRP
- Filing Date
- 2025-07-01
- Publication Date
- 2026-06-26
AI Technical Summary
Existing technologies for creating door and window openings behind block walls result in long construction periods, high costs, severe damage to the block walls, and difficulty in forming an integral structure between the load-bearing lintel and the wall, leading to a decrease in load-bearing capacity.
Steel lintels are symmetrically installed on both sides of the block wall and are fixedly connected to the steel lintels by tie rods to form an integral structure. The supporting lintels are prefabricated in the factory and inserted into the gaps between the blocks. Reinforcing connecting plates are then welded to enhance the load-bearing capacity.
It achieves an integrated structure supporting the lintel and the block wall, shortens the construction period, reduces costs, and significantly improves the load-bearing capacity, making it suitable for house decoration and renovation of old buildings.
Smart Images
Figure CN224413220U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a building structure, and more particularly to a supporting lintel structure for modifying door and window openings in a block wall during building renovation. Background Technology
[0002] In home renovation or the transformation of old buildings, due to changes in use, it is common to open door and window openings after the block walls are built. For example, in the old building renovation project undertaken by this applicant, the design required a large number of door and window openings to be opened on the existing block walls.
[0003] According to building design standards, load-bearing lintels need to be installed above door and window openings, especially for block walls, where the load-bearing lintels bear the weight of the block walls at the door and window openings.
[0004] In existing technology, load-bearing lintels for rear-opening door and window openings are constructed by chiseling a hole in the wall above the door and window opening, then pouring a concrete lintel or installing a structural steel lintel within the hole. After the load-bearing lintel is poured or installed, the door and window opening is then made at the bottom of the lintel.
[0005] The disadvantages of existing technologies are: long construction period, high cost, serious damage to block walls, and difficulty in forming an integral structure between the cast concrete lintel or structural steel lintel and the block wall, which greatly reduces the load-bearing capacity of the lintel. Utility Model Content
[0006] To address the shortcomings of existing technologies, such as long construction periods, high costs, severe damage to block walls, and the difficulty in forming an integral structure between poured concrete or structural steel lintels and the block walls, which significantly reduces the load-bearing capacity of the lintels, this utility model discloses a support lintel structure for the renovation of door and window openings in block walls.
[0007] The technical solution adopted by this utility model to achieve the purpose of the invention is: a supporting beam structure for the modification of door and window openings in a block wall, including a steel beam, which is supported on the wall on both sides of the door and window opening.
[0008] The steel lintels are symmetrically arranged in pairs on both sides of the block wall. The steel lintels are inserted into the gaps between the blocks at the top of the door and window openings, forming a structure in which the steel lintels wrap around the blocks.
[0009] A pair of steel lintels are symmetrically arranged on both sides of the block wall, and tie rods are installed between them through the block wall. The tie rods and the pair of steel lintels form a fixed connection structure.
[0010] The beneficial effects of this utility model are: the supporting lintel is manufactured in the factory, has a simple structure, is easy to install, has a short construction period, and the supporting lintel and the masonry wall form an integral structure, which greatly improves the load-bearing capacity of the lintel. It is especially suitable for use in house decoration or renovation of old buildings.
[0011] The present invention will now be described in detail with reference to the accompanying drawings. Attached Figure Description
[0012] Appendix Figure 1 This is a schematic diagram of embodiment 1 of the present utility model.
[0013] Appendix Figure 2 For the appendix Figure 1 Schematic diagram of the AA cross-section of Example 1.
[0014] Appendix Figure 3 For the appendix Figure 1 Schematic diagram of the AA cross-section of Example 2.
[0015] Appendix Figure 4 This is a schematic diagram of embodiment 2 of the present invention.
[0016] Appendix Figure 5 This is a schematic diagram of embodiment 3 of the present invention.
[0017] Appendix Figure 6 For the appendix Figure 5 Schematic diagram of the BB cross-section of Example 1.
[0018] Appendix Figure 7 For the appendix Figure 5 Schematic diagram of the BB cross-section of Example 2.
[0019] In the attached diagram, 1. steel lintel, 2. block wall, 3. door and window openings, 4. tie rod, 5. block, 1-1. angle steel, 1-2. channel steel, 1-3. reinforcing connecting plate, 6. existing lintel. Detailed Implementation
[0020] Referring to the attached diagram, a lintel structure for modifying door and window openings in a block wall includes a steel lintel that is supported on the walls on both sides of the door and window openings.
[0021] The steel lintels 1 are symmetrically arranged in pairs on both sides of the block wall 2. The steel lintels 1 are inserted into the gaps between the blocks 5 at the top of the door and window openings 3, forming a wrapping structure of the steel lintels 1 and the blocks 5.
[0022] A pair of steel lintels 1 are symmetrically arranged on both sides of the block wall 2, and tie rods 4 are installed between them through the block wall 2. The tie rods 4 and the pair of steel lintels 1 form a fixed connection integral structure.
[0023] In this embodiment of the utility model, the steel lintel 1 is an angle steel 1-1 or a channel steel 1-2.
[0024] In this embodiment of the invention, one side of the factory-customized angle steel 1-1 or both sides of the channel steel 1-2 are placed in the gap between the chiseled masonry blocks 5. The angle steel 1-1 or channel steel 1-2 are symmetrically arranged on both sides of the masonry wall 2 and tightened and fixed by tie rods 4 to form an integral structure. Door and window openings 3 are chiseled under the angle steel 1-1 or channel steel 1-2.
[0025] In this embodiment of the utility model, a reinforcing connecting plate 1-3 is fixedly installed between the pair of steel lintels 1. After the door and window openings 3 are chiseled under the angle steel 1-1 or channel steel 1-2, the reinforcing connecting plate 1-3 is welded between the angle steel 1-1 or channel steel 1-2.
[0026] In this embodiment of the invention, during the expansion and renovation of the existing door and window opening 3, one end of a pair of steel lintels 1 is wrapped with the existing lintel 6 and fixedly connected as a whole by tie rods 4. The existing lintel 6 and the steel lintels 1 together form a load-bearing support for the expanded door and window opening 3.
Claims
1. A lintel structure for modifying door and window openings in masonry walls, comprising a steel lintel supported on the walls on both sides of the door and window openings, characterized in that: The steel lintel (1) is symmetrically arranged on both sides of the block wall (2). The steel lintel (1) is inserted into the gap between the blocks (5) at the top of the door and window openings (3), forming a wrapping structure of the steel lintel (1) over the blocks (5). A pair of steel lintels (1) are symmetrically arranged on both sides of the block wall (2), and tie rods (4) are provided between them through the block wall (2). The tie rods (4) and the pair of steel lintels (1) form a fixed connection of the whole structure.
2. The lintel structure for modifying door and window openings in a masonry wall according to claim 1, characterized in that: The steel lintel (1) is an angle steel (1-1) or a channel steel (1-2).
3. A lintel structure for modifying door and window openings in a masonry wall according to claim 1 or 2, characterized in that: A reinforcing connecting plate (1-3) is fixedly installed between the pair of steel lintels (1).
4. A lintel structure for modifying door and window openings in a block wall according to claim 1 or 2, characterized in that: One end of the pair of steel lintels (1) is wrapped with the existing lintel (6) and fixedly connected to it as a whole by tie rods (4).