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Rigidity judgment method of light assembly type composite floor slab and computer readable storage medium

A technology of combined floor and determination method, applied in sustainable transportation, design optimization/simulation, instruments, etc., can solve the problems affecting the promotion and application of lightweight prefabricated composite floor, the difficulty of composite floor stiffness analysis, and is not suitable for general engineering and technical personnel. and other problems, to achieve the effect of simple stiffness determination method, simple deflection calculation formula and high accuracy

Pending Publication Date: 2022-07-08
COLLEGE OF SCI & TECH NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is currently no research on the stiffness analysis of the above-mentioned lightweight prefabricated composite floor structure, and the calculation process of the deflection of the composite floor using the traditional numerical simulation analysis method is relatively complicated, and the numerical simulation analysis method is not suitable for general For engineering and technical personnel, it is difficult to analyze the stiffness of the composite floor, which affects the popularization and application of the lightweight prefabricated composite floor. Stiffness Judgment Method Under Conditions

Method used

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  • Rigidity judgment method of light assembly type composite floor slab and computer readable storage medium
  • Rigidity judgment method of light assembly type composite floor slab and computer readable storage medium
  • Rigidity judgment method of light assembly type composite floor slab and computer readable storage medium

Examples

Experimental program
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Effect test

Embodiment 1

[0083] There is an existing four-side simply supported composite floor, where B=500mm, a=3600mm, L=2500mm, and the uniform load q=4kN / m 2 . A beam element with a width e=600mm and a length L=2500mm is cut from the four-side simply supported composite floor. The section of the beam element along the e direction is as follows: Figure 2-4 shown. The elastic modulus of the thin-walled main beam 11 and the thin-walled auxiliary beam 12 are both E s =2×10 8 kN / m 2 , the wall thickness is t=1mm. The post-cast layer 4 is cement mortar, and the elastic modulus is E c =2.17×10 7 kN / m 2 .

[0084] Let h = 40mm, 45mm, 50mm, 55mm, 60mm, 65mm, 70mm, 75mm, 80mm, respectively. Refer to Table 2 to interpolate the correlation coefficient ρ to calculate ρ = 0.46, and calculate respectively according to the deflection calculation formula (10). Figure 2-4 The maximum vertical displacement Δ of the three types of composite floor slabs under known uniform loads 1 ,Δ 2 ,Δ 3 , and obtain...

Embodiment 2

[0090] There is a four-sided simply supported composite floor, where B=600mm, a=3500mm, L=3000mm, and the uniform load q=4kN / m 2 . A beam element with a width e=700mm and a length L=3000mm is taken from the four-side simply supported composite floor. The section of the beam element along the e direction is as follows: Figure 2-4 shown. The elastic modulus of the thin-walled main beam 11 and the thin-walled auxiliary beam 12 are both E s =2×10 8 kN / m 2 , the thickness of the prefabricated board 3 is h=40mm. The post-cast layer 4 is cement mortar, and the elastic modulus is E c =2.17×10 7 kN / m 2 .

[0091] Let t=0.5mm, 0.8mm, 1.0mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm, 2.0mm, 2.2mm, respectively, and refer to Table 3 to interpolate the correlation coefficient ρ to calculate the correlation coefficient ρ=0.36, according to the deflection The calculation formula (10) is calculated separately Figure 2-4 The maximum vertical displacement Δ of the three types of composite floor sl...

Embodiment 3

[0096] There is a four-sided simply supported composite floor, where B=600mm, a=4900mm, L=5000mm, and the uniform load q=4kN / m 2 . A beam element with a width e=700mm and a length L=5000mm is taken from the four-sided simply supported composite floor. The section of the beam element along the e direction is as follows: Figure 2-4 shown. The elastic modulus of the thin-walled main beam 11 and the thin-walled auxiliary beam 12 are both E s =2×10 8 kN / m 2 , the thickness of the prefabricated board 3 is h=40mm. The post-cast layer 4 is cement mortar, and the elastic modulus is E c =2.17×10 7 kN / m 2 .

[0097] Let t=0.5mm, 0.8mm, 1.0mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm, 2.0mm, 2.2mm, respectively, refer to Table 3 to interpolate the correlation coefficient ρ to calculate the correlation coefficient ρ=0.26, according to the deflection The calculation formula (10) is calculated separately Figure 2-4 The maximum vertical displacement Δ of the three types of composite floor slabs...

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Abstract

The invention relates to a rigidity judgment method of a light assembly type composite floor slab and a computer readable storage medium. The rigidity judgment method comprises the following steps that a calculation model of the composite floor slab is established; calculating the deflection delta i of the composite floor slab (i = 1-3) (10), wherein rho is a correlation coefficient between the deflection of the composite floor slab and the deflection of the middle beam unit intercepted from the composite floor slab; and judging whether the deflection delta i of the composite floor meets the condition that delta i is smaller than or equal to [delta] (11) or not, determining that the rigidity of the composite floor is qualified if the formula (11) is established, and otherwise, determining that the rigidity of the composite floor is unqualified. Compared with the prior art, the method for judging the rigidity of the light assembly type composite floor slab is simpler and more reasonable.

Description

technical field [0001] The invention relates to the technical field of structural engineering, in particular to a stiffness determination method and a computer-readable storage medium of a four-sided simply supported lightweight composite floor slab. Background technique [0002] Composite floor slabs can also be called floor slabs, load-bearing slabs, floor slabs, floor slabs, and steel slabs. It means that the profiled steel plate is not only used as a permanent formwork for the concrete slab, but also participates in the bearing of the slab as the lower stressed steel bar of the slab. Force calculations, working with concrete to form composite floors. The composite floor has the characteristics of light weight, high strength, high rigidity, convenient and quick construction, easy to update, and convenient for industrial production. Therefore, the composite floor is widely used in engineering structures as load-bearing components. [0003] The applicant once proposed a li...

Claims

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Application Information

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IPC IPC(8): G06F30/13G06F30/23G06F119/14
CPCG06F30/13G06F30/23G06F2119/14Y02T90/00
Inventor 王新堂
Owner COLLEGE OF SCI & TECH NINGBO UNIV
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