Lightweight concrete-bamboo glue-laminated panel T-shaped beam

A lightweight concrete and concrete technology, applied in the direction of joists, girders, trusses, etc., can solve the problems of poor ductility, low bearing capacity of original bamboo beams, poor deformation performance, etc., achieve good ductility, reduce material transportation, fire resistance good performance

Pending Publication Date: 2018-07-24
NANJING FORESTRY UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object to be solved by the present invention is to overcome the shortcomings of the existing original bamboo beams such as low bearing capacity, poor ductility and poor deformation performance, and to provide a lightweight concrete-bamboo integrated structure with good mechanical properties, low cost, simple structure, energy saving and environmental protection. T-shaped beams are used to replace the original bamboo beams, and can be used as floor beams and roof beams in bamboo structure buildings and bamboo-wood composite structures

Method used

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  • Lightweight concrete-bamboo glue-laminated panel T-shaped beam
  • Lightweight concrete-bamboo glue-laminated panel T-shaped beam

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Embodiment 1

[0032] Embodiment 1: Get 12mm thick, 290mm high bamboo plywood as web, get 40mm high, 80mm wide bamboo laminated wood as flange, get 90mm wide, 15mm thick, 210mm high bamboo plywood as stiffener, web The nail spacing between the plate and the upper flange, the web and the lower flange is 150mm, the web and the flange are bonded with adhesive and reinforced with nails, the web and the stiffener are connected with nails, and the concrete water-cement ratio is 0.3 , the thickness of the concrete slab is 100mm thick, and the distance between the shear keys is 100mm. The height of the finished box girder is 300mm high and the length is 3660mm.

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Abstract

The invention provides a lightweight concrete-bamboo glue-laminated panel T-shaped beam which comprises a concrete (1), an upper flange (2), a lower flange (3), a side web (4), a middle web (5), a reinforcing steel bar (6), FRP (Fiber Reinforced Plastic) (7) and a shear key (8). The lightweight concrete-bamboo glue-laminated panel T-shaped beam is characterized in that the concrete (1) is locatedon the top part of the T-shaped beam and is used for bearing the pressure; the side web (4) and the middle web (5) are located on the middle parts of the upper flange (2) and the lower flange (3) andare used for bearing the shear stress; the upper flange (2) is located on the upper part of a box beam; the lower flange (3) is located on the lower part of the box beam; the upper flange and the lower flange are used for bearing the pulling stress; the reinforcing steel bar (6) is located in the lower flange (3); the FRP (7) is adhered to the bottom part of the lower flange (3); the reinforcing steel bar (6) and the FRP (7) are used for bearing the pulling stress; the concrete (1) and the upper flange (2) are connected through the shear key (8). By fully utilizing the characteristics of the eight materials, the lightweight concrete-bamboo glue-laminated panel T-shaped beam provided by the invention has the characteristics of light weight, high strength and great rigidity, and can be applied to bending members in the field of civil construction.

Description

technical field [0001] The invention relates to a lightweight concrete-bamboo glulam T-shaped beam component, in particular to a T-shaped beam component of bamboo and other materials, belonging to the field of civil engineering structures. Background technique [0002] In order to reduce the dependence on high energy consumption and high pollution building materials such as clay, steel and cement, energy-saving, environmentally friendly and renewable green building materials are increasingly favored by people. my country has extremely rich bamboo resources. Bamboo has the advantages of high strength, fast growth, easy processing and good toughness. It can replace ordinary broad-leaved wood and coniferous wood. It is a renewable raw material with broad application prospects. The use of bamboo as the main building material in the engineering field is beneficial to the country and the people. "Replacing wood with bamboo" is conducive to reducing the dependence on traditional bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/29
CPCE04C3/29
Inventor 陈国贺莉森年璐
Owner NANJING FORESTRY UNIV
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