A wall reinforcement structure and method for strengthening the integrity of ancient buildings
A structural reinforcement and integrity technology, applied in building construction, construction, building maintenance, etc., can solve problems such as poor structural integrity, reduced bearing capacity, continuous collapse and damage of ancient buildings, etc., to strengthen the overall stability of the structure, improve the inherent Effect of Frequency, Wide Application Prospect
Inactive Publication Date: 2016-01-13
SOUTHEAST UNIV
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Problems solved by technology
Vibration during this process may lead to continuous collapse and damage of the above-mentioned ancient buildings, resulting in irreversible consequences
Due to the long service life, long-term alternation of cold and heat, rain immersion, air oxidation, earthquake and some man-made damage, the walls of ancient buildings are aging, the bearing capacity is greatly reduced, and the structural integrity is poor. The damage of a piece of wall is likely to cause the continuous collapse of the whole structure
Method used
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[0034] 1. Prefabricated column 1: Hot-rolled seamless steel pipe is used, the specification is 203*16, the height is 1m longer than the height of the vertical wall of the ancient building, and the steel material is Q345 steel.
[0035] 2. Prefabricated inter-column prestressed part 2: use spiral rib stress-relieving steel wire, diameter 5mm, standard value of ultimate strength 1860N / mm 2 , and the length is 1m longer than the outer wall of the ancient building.
[0036] 3. Prefabricated prestressed part 3 between walls: use spiral rib to relieve stress steel wire, diameter 5mm, standard value of ultimate strength 1860N / mm 2 , and the length is 1m longer than the horizontal wall of the ancient building.
[0037] 4. Prefabricated L-shaped pad 4 and rectangular pad 5: general-purpose rubber blocks are used, and the specific dimensions are cut and processed according to the actual measured values on site. The shapes are as follows: figure 2 , image 3 and Figure 4 shown. ...
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The invention discloses a wall reinforcement structure and method for strengthening the integrity of ancient buildings. The invention considers that most of the ancient buildings are of brick-concrete structure, without ring beams, and self-heavy, and adopts a reinforcement scheme based on off-site prefabricated components and on-site assembly to reinforce the walls to prevent the ancient buildings from vibrating and continuously collapsing. The invention can strengthen the integrity of the structure, effectively control the deformation of the wall body when a vibration load is suddenly applied externally, and prevent the ancient building from losing stability and continuously collapsing. At the same time, the present invention has the advantages of high degree of reversibility, no open flame operation on site, simple operation, convenient application, and no damage to the ancient building body. Ancient buildings, especially key cultural relics distributed in dense urban areas, are subject to municipal demolition projects and subway construction. When affected by construction techniques with vibration characteristics such as blasting engineering, deep foundation pit excavation engineering, and large-diameter pile foundation construction, it can play an effective protective role, and has a wide application prospect in preventing extreme damage such as continuous collapse of ancient buildings.
Description
technical field [0001] The invention belongs to the technical field of building reinforcement, and relates to a wall reinforcement structure and method for strengthening the integrity of ancient buildings. Background technique [0002] With the development of the times, urban construction is getting faster and faster, large-scale buildings, tunnels and other projects can be seen everywhere, and many projects are adjacent to ancient buildings. Since ancient buildings are mostly brick-concrete structures or wood component systems, they cannot form a complete frame system, lack seismic ring beams and structural column components, and have the characteristics of self-heavy, poor integrity, and low natural frequency, so they are very sensitive to vibration. Surrounding large-scale engineering construction, especially municipal engineering, blasting engineering for subway construction, deep foundation pit excavation engineering, and large-diameter pile foundation construction all ...
Claims
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IPC IPC(8): E04G23/02
Inventor 穆保岗李旭邱洪兴杨书仁
Owner SOUTHEAST UNIV