US 2018/0003586 A1 · STRESS-STRAIN TESTING SYSTEM FOR LARGE-DIAMETER STEEL PIPE PILE OF OFFSHORE WIND TURBINE AND CONSTRUCTION METHOD

Abstract

The present invention relates to a stress-strain testing system for a large-diameter steel pipe pile of an offshore wind turbine and a construction method, comprising a steel pipe pile, wherein copper belt type sensor cables are correspondingly welded on both sides of the steel pipe pile along an axis direction; each sensor cable is sequentially covered with an epoxy adhesive, gold foil paper and an angle steel welded on the steel pipe pile centering on the copper belt type sensor cable; a fiber core of each copper belt type sensor cable is transferred into a high-strength armored optical cable by a special fixture and then is led out; and the high-strength armored optical cable is connected with a Brillouin optical fiber demodulator. The present invention is applicable to the field of foundation engineering testing and detection technology.

Claims2

Dependent claims

A stress-strain testing system for a large-diameter steel pipe pile of an offshore wind turbine, having a steel pipe pile (1), wherein copper belt type sensor cables (2) are correspondingly welded on both sides of the steel pipe pile (1) along an axis direction;

each sensor cable is sequentially covered with an epoxy adhesive (5), gold foil paper (6) and an angle steel (7) welded on the steel pipe pile (I) by using the copper belt type sensor cable as a center;
a fiber core in each copper belt type sensor cable (2) is transferred into a high-strength armored optical cable (4) with a special fixture and then is led out;
and the high-strength armored optical cable (4) is connected with a Brillouin optical fiber demodulator (3).

Dependencies are inferred from the claim text.

Facts

Application

15/622,073Filed 13 Jun 2017

Priority

CN 201610530059.04 Jul 2016

Published

4 Jan 2018

Term ends

Not estimatedThe source records don’t support an estimate.

Classification13 codes

G01M 5/0058
By means of external apparatus, e.g. test benches or portable test systems: of elongated objects, e.g. pipes, masts, towers or railways
G01B 11/18
For measuring the deformation in a solid, e.g. optical strain gauge: using photoelastic elements
G01L 1/242
By measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible…
G01M 5/0025
Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings: of elongated objects, e.g. pipes, masts, towers or railways

Stress-strain testing system for large-diameter steel pipe pile of offshore wind turbine and construction method

Life of this patent

Stress-strain testing system for large-diameter steel pipe pile of offshore wind turbine and construction method

Life of this patent

Abstract

Claims2