Hollow ribbon board, ribbed slab with hollow ribbon boards and construction formwork system with hollow ribbon boards

Abstract

The invention discloses a hollow ribbon board provided with multiple through-long core pulling holes. The axial direction of the core pulling holes is the horizontal length direction, plugs are arranged in the core pulling holes, or one end of each core pulling hole is shrunk to form a small hole a; reinforcing ribs are arranged on the hollow ribbon board, and built-in or pin-key connection or overlapping structures are arranged on the side edges of the hollow ribbon board. The hollow ribbon board is soundproof, light, fireproof and capable of preserving heat. The invention discloses a ribbed slab with the hollow ribbon boards. The ribbed slab comprises ribbed hidden beams, surface boards and the hollow ribbon boards, the multiple hollow ribbon boards are arranged at intervals, and concrete is poured to the intervals and the tops of the hollow ribbon boards to form the ribbed hidden beams and the surface boards. The ribbed slab is convenient to construct, low in manufacturing cost and good in performance. The invention discloses a construction formwork system with the hollow ribbon boards. The construction formwork system comprises joists and permanent formworks, and the two sides of each permanent formwork are supported by the edges of the adjacent joists. The permanent formworks are the hollow ribbon boards, and the multiple hollow ribbon boards are arranged at intervals. The construction formwork system can be mounted rapidly, and is free of vertical supports, or supports are few.

Description

technical field [0001] The invention belongs to the technical field of construction and relates to hollow slats. The invention also relates to a densely ribbed floor slab using hollow slats. The invention also relates to a construction formwork system for building densely ribbed slabs and using hollow slats. Background technique [0002] Traditional cast-in-place concrete solid slabs have good integrity and durability, but they are heavy and use a lot of materials. Reinforced concrete ribbed slabs can save materials and reduce self-weight. Detachable plastic formwork (mold boxes) are often used for construction and molding, but the installation The demolition is complicated, the bottom surface of the formed floor is uneven, the panel is thin, and the sound insulation and heat insulation and fire resistance are poor. One of the improved methods is to use prefabricated hollow bricks, aerated concrete blocks, hollow pipes, formwork, etc. to fill, and cast in-situ to form a dens...

AI Technical Summary

Problems solved by technology

[0004] Hollow slats were originally used as internal partition walls, with large production capacity, mature technology, and relatively complete standards and specifications, such as national and industry standards "JC / T 829-2010 Gypsum Hollow Slats", "GB / T 23451-2009 Lightweight Partitions for Construction Wall slats, etc., but this type of product is only used as an interior partition wall material, and its use is limited

[0005] In addition, the densely ribbed floor still has the problem that the size of the rib beam and the position of the steel bar are not easy to be accurate, which needs to be improved

[0006] The construction formwork of the existing densely ribbed floor needs more vertical supports and formwork, such as the scaffolding support of the whole hall, and the formwork is fully paved, and the disassembly and assembly are time-consuming and laborious, and the efficiency is low

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