The added layer shock-absorption technology boasts the following features:
Increase the seismic resistance of existing buildings by 30% to 50%.
② Due to additional layers, enhanced land utilization and increased floor area.
③ Due to the use of additional shock-absorbing layers, no reinforcement measures are required for the existing buildings, thus protecting the original structures.
Cut construction, without any effect on usage requirements.
④ The process of adding layers will not affect the normal operation or living conditions of people or equipment instruments in the existing buildings.
⑤ High-quality sandwich rubber pads can ensure the service life of multi-layer buildings exceeds seventy years.
Multi-layered internal frame structure. The structural arrangement of the added layer is the same as that of the lower layer, with reinforced concrete columns and beams within the internal frame.
Brick pillar settings up to *. Reinforced concrete ring beams are set layer by layer according to seismic requirements, and seismic columns are set at the corners of the house.
The new addition's seismic transverse and longitudinal walls are constructed using common bricks or masonry. The feasibility of the addition depends on the original reinforced concrete interior columns and those with...
The load-bearing capacity of the brick masonry in the columns and the possibility of reinforcement.

Compared to conventional reinforced concrete addition structures, steel structure addition technology boasts the following characteristics:
(1) Lightweight. The steel structure is lightweight, weighing only a fraction of the same structural form compared to concrete structures.
The quantity is reduced to 1/2-2/3, which lightens the structural self-weight and also reduces the force exerted by the upper structure on the foundation, thereby lowering the base...
The scope and reinforcement work involved.
(2) Excellent seismic performance. The high strength of steel structures can reduce the weight of the additional layer, thereby reducing the structural load.
Subject to seismic action; moreover, the steel has good ductility, and the added layer possesses significant elastic-plastic deformation capacity under seismic action.
Absorbs a large amount of energy, thereby enhancing the seismic safety of the structure.
(3) Easy to construct; steel components are factory-fabricated and assembled on-site. Connection techniques are simple, with versatile designs.
Live, with most being dry operations, facilitating cross-disciplinary work and on-site construction management.
(4) Steel structure addition construction offers rapid progress and short project duration, facilitating early commissioning and generating benefits.
(5) Structural mezzanine addition can achieve unified exterior renovation for both new and old buildings, *the facade style of the addition matches the original
The facade is consistent and harmonizes with the surrounding environment.

The inspection methods for the transformation of building addition structures offer the following advantages:
(1) This method boasts high tensile strength of the material with a minimal weight.
(2) Carbon fiber materials have a high modulus of elasticity, up to 2-3 times that of steel, with strong deformation capability, which is beneficial for improving...
High component bearing capacity and ductility.
(3) Carbon fiber materials possess excellent corrosion resistance and durability.
(4) Carbon fiber materials exhibit strong fatigue resistance.
(5) Virtually no change to the appearance and dimensions of the structure.
(6) Simple construction process, easy to install.
(7) Maintenance of the reinforced system*.
(8) The disadvantage of reinforcing with carbon fiber materials is that it has an insignificant reinforcement effect on components under compression, and it cannot effectively improve the structure's load-bearing capacity.
High stiffness of the part, demanding better performance from construction and adhesive, results in slightly higher cost.

Ensure rigorous analysis of structural steel design for additional floors in concrete frame structures to promote the sustainability of modern building construction.
During the expansion and addition of construction, the following drawbacks are present: Firstly, after the addition of steel structures, the overall building structure becomes...
An upper soft and lower rigid, upper light and lower heavy quality and stiffness distribution is presented, resulting in poor overall integrity of the building and a lack of certain
Seismic performance; secondly, the durability of steel structures is relatively poor, and anti-corrosion and fire prevention measures are required during expansion.
Considerations of cost, which would increase the use of building materials, at this point, would also involve issues of raw material quality.
There is also the issue of raw material costs to consider, hence certain deficiencies exist.