A precast method for simultaneously pouring the upper part of the beam and the slab with slab concrete strength.
The "NS Beam Method" is a construction technique that consists of placing concrete with the same strength as the floor slab on the upper part of the beam. This method reduces the materials needed for the stop formwork and the labor required to install the stop formwork, thereby streamlining and saving labor in the construction process. Beams manufactured according to the design and construction guidelines of this method do not experience any impairments during the service limit state or damage that compromises repairability during the damage limit state. Additionally, it has been confirmed and proven through structural performance testing that this method possesses the ultimate strength and deformation performance defined by the guidelines at the safety limit state. This method has obtained a building technology performance certification from the Japan Building Disaster Prevention Association. *For more details, please download the PDF or contact us.*
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【Scope of Application】 ■Concrete ・Type: Ordinary Concrete ・Design Standard Strength: 24–60 N/mm² ■Reinforcement ・Standard: Deformed bars conforming to JIS G 3122 ・Main Beam Reinforcement: SD345, SD390, SD490 ・Shear Reinforcement: SD295A, SD295B, SD345, SD390, SD490, etc. ・Anti-Slip Reinforcement: SD295A, SD295B, SD345 ■Slab ・Shape: A slab must be present on both sides or one side with a length of 0.1L (L: clear span of the beam) or more ・Thickness: Generally, it should be 1/5D or more and less than 1/2D (D: beam depth) and at least 150 mm ・Slab Step: Applicable when slabs are attached to both sides of the beam, etc. ■Others ・The lower part of the beam shall consist of precast concrete components manufactured in a factory. *For more details, please download the PDF or contact us.
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At Nishimatsu Construction Co., Ltd., we primarily engage in construction, development, and real estate businesses. With over 140 years of long history and tradition since our founding, we leverage our advanced technological capabilities as our strength to undertake the construction of public facilities such as roads and dams, as well as urban redevelopment, contributing to the development of safe and secure social infrastructure and comfortable environments. We aim to build win-win relationships with all stakeholders by providing valuable buildings and services, and we will contribute to the creation of a sustainable society and environment where people can live with peace of mind.