Kindergarten Building Seismic Safety Evaluation Report
Seismic evaluation of buildings refers to the activity conducted by qualified testing institutions, which involves vibration table tests or other methods under specified conditions to determine the structural safety of the buildings.
In accordance with the provisions of China's "Seismic Design Code for Buildings" GB-2008, projects requiring seismic evaluation of buildings include:
Seismic safety assessment of the site, foundation, and underground structures.
(2) Building Reliability Assessment
(3) Structural Component Load-bearing Capacity Testing of Buildings
(4) Masonry structural component strength testing
(5) Non-load-bearing wall inspection
(6) Tension test of prestressed concrete structures.
During the construction or renovation of buildings, or at any stage between shutdown and resumption of work, or during use, when additional layers, inserts, expansions, or extensive structural or functional changes occur in the building, it is necessary to conduct seismic evaluation on the original building and factory structures based on the seismic assessment of the renovation structure. This includes inspecting the original structure, its system, and conducting a structural evaluation. A comprehensive assessment of the seismic performance and feasibility of the renovation plan is required, with recommendations for optimization measures and seismic reinforcement of the original structure as needed. The seismic evaluation of building and factory renovations should be based on current seismic design standards. A kindergarten teaching building constructed in 1982 is a four-story frame structure, supported by reinforced concrete slabs, beams, and columns, with common clay bricks for wall construction and partitioning. The building faces north to south, with a total floor area of approximately 1,783 m². The building has a rectangular plan shape with a total axis length of 48.0 m and a total width of 6.7 m, spanning four floors with a total height of 14.0 m, each floor being 3.5 m high. The windowsills on the interior and exterior walls are tiled, the rest are finished with mixed mortar, the ceilings are also finished with mixed mortar, the indoor floors are tiled with glazed bricks, some with cement mortar roofs, and it features iron doors and aluminum alloy windows. To determine if the seismic performance of the teaching building meets the requirements of the "Seismic Evaluation Standard for Buildings" (gb 50023-2009) for seismic assessment, a safety and seismic evaluation of the main structure is conducted.
