WO2020178606A1 - Classe de composites de revêtement d'une surface portante ayant une armature à grilles structurée et procédé d'assemblage - Google Patents

Classe de composites de revêtement d'une surface portante ayant une armature à grilles structurée et procédé d'assemblage Download PDF

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Publication number
WO2020178606A1
WO2020178606A1 PCT/IB2019/000224 IB2019000224W WO2020178606A1 WO 2020178606 A1 WO2020178606 A1 WO 2020178606A1 IB 2019000224 W IB2019000224 W IB 2019000224W WO 2020178606 A1 WO2020178606 A1 WO 2020178606A1
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WO
WIPO (PCT)
Prior art keywords
weight
plate
apparatuses
cpm
filling material
Prior art date
Application number
PCT/IB2019/000224
Other languages
English (en)
Inventor
Su Hao
Alexander J. HAO
Original Assignee
Su Hao
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Su Hao filed Critical Su Hao
Priority to PCT/IB2019/000224 priority Critical patent/WO2020178606A1/fr
Publication of WO2020178606A1 publication Critical patent/WO2020178606A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/34—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
    • E04C2/36—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels
    • E04C2/365—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels by honeycomb structures
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/34—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/34—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
    • E04C2/3405—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by profiled spacer sheets
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/34—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
    • E04C2/3405—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by profiled spacer sheets
    • E04C2002/3444—Corrugated sheets
    • E04C2002/3466—Corrugated sheets with sinusoidal corrugations

Definitions

  • Composite sheet matrixes to protect weight-carrying platform’s surfaces such as bridges’ decks, ships’ decks, and seashore oil-drill platform’s surface, particularly, the steel decks of orthotropic bridges
  • the present invention provides a class of composite sheet that is block of composite pavement matrix, termed“CPM” thereof, which can be either used as a new pavement matrix to repair and recover an aged orthotropic bridge’s steel deck, or to be manufactured associated with a new bridge’s steel beam’s deck to reduce the structural weight, by which CPM can be used directly to expose to the forces of carried weights or is covered by thinner traditional pavement, e.g. asphalt, for better comfortableness to the drivers in vehicles passed over.
  • CPM block of composite pavement matrix
  • a weight-carrying structure’s platform such as a bridge’s deck or a building’s floor
  • the stresses experienced by each material element on such a platform’s surface can be categorized into two classes: (A) the stresses caused by directly imposed contact forces, which introduces localized stress concentration while causes surface wearing; the contact forces also include two kinds: gravity and additional dynamic force, for example, weight of a carried vehicle and additional dynamic forces when it breaks, see Fig. 1(d) [4,5]; (B) stresses due to global force-flows, for example: bending moments-induced tension or compression, see Fig. 1(d).
  • class (B) stresses By the conventional design for this kind of platforms in last century, more attentions had been given to the class (B) stresses to assure global structural integrity. Wearing and the effects of class (A) stresses to material’s damages often emerges only after long-term services, which becomes a general safety issue of maintenance for a structure like a bridge that is supposed to last 75 or 100 years.
  • the disclosed invention can also be applied to other platforms with the similar issues.
  • the materials’ damages, such as fatigue cracks generally occur around the areas with material’s heterogeneities, such as welded joints, and the local area with sudden geometric changes. The latter introduces localized stress concentration; and the former reduces material’s strength that promotes damage’s initiation in the form of micro-cracking under applied stresses.
  • This invention discloses a class of Composite Pavement Matrixes to protect weight- carrying structure’s platform, which is termed“CPM” thereof.
  • CPM is contains periodically- arranged cavities that are separated by multiple pieces of plates, see Figs. 2-5. The geometries and sizes of the cavities and the plates are designed to satisfy the conditions defined in the previous section.
  • a piece of CPM can be either made as a part of a said weight-carrying structure or is a pre-fabricated sheet that can be paved onto a surface of a said weight-carrying structure’s platform.
  • a application of CPM is to protect a weight-carrying platform’s surface, so it is designed to satisfy the following conditions:
  • Capability to strengthening a platform means not only protecting its surface but also sharing global force-flows to reduce the effects of class (B) stresses.
  • the basic embodiments of CPM include: (I) structural blocks that in the forms of a piece of plate and a block of material with designed geometries for specified structural functions; (II) the structural blocks configurate a matrix that contains plurals of cavities with designed geometries for specified structural functions; (III) the materials to fill into the cavities for specified structural functions; (TV) the methods to fix a block of CPM onto a weight-carrying platform’s surface; wherein the underlying mechanisms of the embodiments (I, II, III) are to assure the satisfactions of the conditions i, ii, iii, iv, vi, and vii; wherein the underlying mechanisms of embodiment (IV) are for the satisfaction of the condition v.
  • invented CPM composites include three types, termed Type-I, Type-II, and Type-III Composite Pavement Matrixes and abbreviated respectively as CPM-I, CPM-II, and CPM-III thereof.
  • Fig. 2 is schematic view of a Type-la CPM, a member that belongs to a subgroup of
  • CPM-I and termed“CPM-Ia” thereof.
  • a CPM-Ia is attached onto an orthotropic steel bridge’s deck, which comprises a top plate, a bottom plate, and plurals of plate-strips configurated in periodic wavy geometry and formed the arch-shaped plate-grid; wherein the surfaces of each plate-strip is perpendicular to the surface of a weight-carrying platform.
  • Fig. 3 is schematic view of a Type-lb CPM, a member that belongs to another subgroup of CPM-I and termed“CPM-Ib” thereof, which is a block of CPM-Ia matrix but with additional material filled into the cavities left in the matrix.
  • a composite sheet of CPM-Ia or CPM-Ib that does not have top plate defines another subgroup of CPM-I, termed CPM-Ic thereof.
  • a composite sheet of CPM-Ia or CPM-Ib that does not have bottom plate defines another subgroup of CPM-I, termed CPM-Id thereof.
  • a composite sheet of CPM-Ia or CPM-Ib that does not have bottom plate and top plate defines another subgroup of CPM-I, termed CPM-Ie thereof.
  • Fig. 4 is schematic view of a Type-IIa CPM, a subgroup of CPM-II and termed“CPM-IIa” thereof.
  • a composite sheet of CPM-IIa comprises a top plate, a bottom plate, and an arch-framed wavy-plate in-between; wherein said arch-framed wavy-plate has a periodically-distributed, specially-designed, geometric pattern to better sustain load imposed above; wherein said arch- framed wavy-plate comprises a part of upper arch geometry with its top touched onto said top plate, a part of lower arch geometry with its bottom touched onto said bottom plate, and transition parts in-between; wherein said bottom plate is bolted onto the orthotropic bridge’s deck; wherein the holes drilled for bolting on the bridge’s deck are arranged at the locations without the risk to introduce a secondary fatigue“hot spot” based on the analysis in [4,5] and illustrated in Fig. 1(e).
  • Fig. 5 is schematic view of Type-IIb CPM, another subgroup of CPM-II and termed
  • CPM-IIb thereof, which has the same structural frame as the CPM-IIa matrix but with additional material filled into the cavities that are either confined by the wavy plate and the top plate, termed upper cavities, or that confined by the wavy plate and the bottom plate, termed lower cavities, or both of them.
  • the top plate is made of the material that is the same as the filling material in the upper cavities, this defines another subgroup of CPM-II and termed“CPM-IIc” thereof.
  • Fig. 6 is schematic view of a Type-IId CPM, another subgroup of CPM-II and termed
  • CPM-IId thereof, which is a block of CPM-IIa matrix but comprises at least one of the following two groups of supporting blocks: the group of upper-support blocks that are inserted into the upper cavities without proximity to adjacent top plate and arch-framed wavy-plate; and the group of lower-support blocks that are insert into lower cavities without proximity to adjacent bottom plate and arch-framed wavy-plate.
  • a composite sheet of CPM-IId with at least one cavity When a composite sheet of CPM-IId with at least one cavity is filled by another filling material, it defines another subgroup of CPM-I1 and termed“CPM-IIe” thereof; wherein said cavity is either a subspace of one upper cavity confined by inserted upper-supporting blocks or a subspace of one lower cavity confined by inserted lower-supporting blocks.
  • top plate of a CPM-IId or CPM-IIe is made of the material that is the same as the filling material in upper cavities, this defines another subgroup of CPM-II and termed“CPM- nf’ thereof.
  • CPM-m III CPM, i.e. CPM-m. Any of subgroups of CPM-II has its counterpart subgroup in CPM-m; the two counterpart subgroups are exactly the same but the arch-framed wavy-plate in any one of the
  • CPM-m subgroups has at least one flat-part parallel to the weight-carry platform’s surface .
  • Fig. 9 introduces the methods to fasten CPM onto weight-carry platform’s surface by bolting, so as to avoid the creation of secondary fatigue hot spot; (a) directly through the flat segment’s margin part of arch-shaped wavy-plate; (b) through the bottom plate’s extra extension legs; (c) directly through the flat segment’s extra extension legs of arch-shaped wavy-plate; (d) through the bottom plate’s extension part
  • Fig. 1 An orthotropic bridge is under construction [1]; (b) a finite element model for a orthotropic bridge that gives the results in (d) and (e) of this figure; (c) fatigue cracks detected in other aged bridges; (d) live loads caused class-A stresses contours; (e) live plus dead loadsinduced Class-B stresses contours.
  • FIG. 2 Schematic diagrams of the embodiment for CPM-Ia, a subgroup of Type-I of Composite
  • FIG. 3 A schematic diagram of the embodiment for CPM-Ib, a subgroup of Type-I of Composite
  • Fig. 4 A schematic diagram of the embodiment for a Type-Da CPM, a subgroup of Type-D
  • FIG. 5 Schematic diagrams of the embodiment for a Type-Db CPM, another subgroup of Type-D
  • Composite Pavement Matrixes (a) filling material filled in both upper and lower cavities; (b) filling material filled in upper cavities; (b) filling material filled in lower cavities
  • Fig. 6 A schematic diagram of the embodiment for a Type-Dd CPM, another subgroup of Type-
  • Fig. 7 Schematic diagrams of the embodiments for a Type-Dig CPM, (a) a CPM-DIg that is with bottom plate and filled by a pavement filling material in upper cavities and covering the composite sheet; (b) a CPM-DIg that is without bottom plate but with a pavement filling materials that is filled into upper cavities and covers the composite sheet
  • Fig. 8 A schematic diagram of the embodiment for a Type-DId CPM, another subgroup of Type-
  • FIG. 9 Schematic diagrams of the embodiments to fasten a CPM sheet onto a weight-carrying platform’s surface at the latter’s margin area that will not create the secondary fatigue hot spot;

Abstract

La présente invention concerne une classe d'appareils pour la protection de structures porteuses et des procédés associés à leur assemblage ; lesdites structures porteuses comprenant des plates-formes de ponts orthotropes et d'autres plates-formes de structures en béton, des structures en acier, et des structures hybrides béton-acier pour supporter au-dessus de la charge de gravité et de la charge dynamique des produits empilés lorsque les produits sont déplacés ou arrêtés soudainement ; ledit appareil étant un bloc d'une matrice de chaussée composite, dit "CPM" en abrégé, pour recouvrir une surface de ladite structure porteuse ; ladite CPM étant constituée d'une armature à structure mésoscopique et de cavités qui peuvent être remplies par d'autres matériaux pour renforcer la matrice. Les structures et géométries dudit cadre mésoscopique et desdites cavités, conjointement avec les sélections desdits matériaux de remplissage, sont conçues pour maintenir les contraintes provoquées par les charges locales et les flux de forces structurales globales. Ledit appareil est soit fabriqué en tant que partie d'une structure porteuse, soit pré-fabriqué pour être appliqué sur une surface d'une structure porteuse.
PCT/IB2019/000224 2019-03-04 2019-03-04 Classe de composites de revêtement d'une surface portante ayant une armature à grilles structurée et procédé d'assemblage WO2020178606A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IB2019/000224 WO2020178606A1 (fr) 2019-03-04 2019-03-04 Classe de composites de revêtement d'une surface portante ayant une armature à grilles structurée et procédé d'assemblage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2019/000224 WO2020178606A1 (fr) 2019-03-04 2019-03-04 Classe de composites de revêtement d'une surface portante ayant une armature à grilles structurée et procédé d'assemblage

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Publication Number Publication Date
WO2020178606A1 true WO2020178606A1 (fr) 2020-09-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114528731A (zh) * 2022-01-26 2022-05-24 东南大学 一种基于格构模型的混凝土材料损伤演变过程的模拟方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2190490A (en) * 1937-04-22 1940-02-13 American Rolling Mill Co Structural material
US3950910A (en) * 1974-09-24 1976-04-20 American Air Filter Company, Inc. Shelter panel
US20050158573A1 (en) * 2002-05-30 2005-07-21 Elzey Dana M. Active energy absorbing cellular metals and method of manufacturing and using the same
US20060163319A1 (en) * 2002-09-03 2006-07-27 Ervin Kenneth D Method for manufacture of truss core sandwich structures and related structures thereof
US20140311077A1 (en) * 2013-03-14 2014-10-23 Amir Firouz Structural Component System
US9222260B1 (en) * 2009-04-10 2015-12-29 Su Hao Lightweight multi-layer arch-structured armor (LMAR)

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2190490A (en) * 1937-04-22 1940-02-13 American Rolling Mill Co Structural material
US3950910A (en) * 1974-09-24 1976-04-20 American Air Filter Company, Inc. Shelter panel
US20050158573A1 (en) * 2002-05-30 2005-07-21 Elzey Dana M. Active energy absorbing cellular metals and method of manufacturing and using the same
US20060163319A1 (en) * 2002-09-03 2006-07-27 Ervin Kenneth D Method for manufacture of truss core sandwich structures and related structures thereof
US9222260B1 (en) * 2009-04-10 2015-12-29 Su Hao Lightweight multi-layer arch-structured armor (LMAR)
US20140311077A1 (en) * 2013-03-14 2014-10-23 Amir Firouz Structural Component System

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114528731A (zh) * 2022-01-26 2022-05-24 东南大学 一种基于格构模型的混凝土材料损伤演变过程的模拟方法
CN114528731B (zh) * 2022-01-26 2023-10-31 东南大学 一种基于格构模型的混凝土材料损伤演变过程的模拟方法

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