WO2011143248A1 - Configurations pour système de blocs post-contraints par unités - Google Patents

Configurations pour système de blocs post-contraints par unités Download PDF

Info

Publication number
WO2011143248A1
WO2011143248A1 PCT/US2011/035965 US2011035965W WO2011143248A1 WO 2011143248 A1 WO2011143248 A1 WO 2011143248A1 US 2011035965 W US2011035965 W US 2011035965W WO 2011143248 A1 WO2011143248 A1 WO 2011143248A1
Authority
WO
WIPO (PCT)
Prior art keywords
apertures
anchor bar
threaded aperture
masonry unit
anchor
Prior art date
Application number
PCT/US2011/035965
Other languages
English (en)
Inventor
Roger F. Marsh
Patricia M. Marsh
Original Assignee
Marsh Roger F
Marsh Patricia M
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 Marsh Roger F, Marsh Patricia M filed Critical Marsh Roger F
Publication of WO2011143248A1 publication Critical patent/WO2011143248A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
    • E04B2/14—Walls having cavities in, but not between, the elements, i.e. each cavity being enclosed by at least four sides forming part of one single element
    • E04B2/16—Walls having cavities in, but not between, the elements, i.e. each cavity being enclosed by at least four sides forming part of one single element using elements having specially-designed means for stabilising the position
    • E04B2/20—Walls having cavities in, but not between, the elements, i.e. each cavity being enclosed by at least four sides forming part of one single element using elements having specially-designed means for stabilising the position by filling material with or without reinforcements in small channels in, or in grooves between, the elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
    • E04B2002/0202—Details of connections
    • E04B2002/0243—Separate connectors or inserts, e.g. pegs, pins or keys
    • E04B2002/0254—Tie rods

Definitions

  • Embodiments of the present invention relate generally to systems and methods for concrete masonry structures, and more particularly to unitized post tension systems and methods for concrete masonry structures.
  • a system for constructing structures with concrete masonry units includes a masonry unit having a top surface, a bottom surface, first and second sides, first and second ends, a first through-cavity formed through the masonry unit from the top surface to the bottom surface, a second through-cavity formed through the masonry unit from the top surface to the bottom surface, and an anchor bar channel recessed within the top surface; an anchor bar, the anchor bar including a first set of apertures, the first set of apertures including a first non-threaded aperture and a first threaded aperture, wherein the first non-threaded aperture and the first threaded aperture are located in first and second diagonally opposing quadrants of a coordinate system defined by a longitudinal centerline of the anchor bar and a line that is perpendicular to the longitudinal centerline; a second set of apertures neighboring the first set of apertures, the second set of apertures comprising a second non-threaded aperture that is substantially the same as the first non-th
  • the anchor bar further includes a third set of apertures neighboring the first set of apertures but not the second set of apertures, the third set of apertures having the same placement as the second set of apertures but spaced longitudinally from the first set of apertures.
  • Such embodiments of may further include an anchor bar further including a fourth set of apertures neighboring the second set of apertures but not the first set of apertures, the fourth set of apertures having the same placement as the first set of apertures but spaced longitudinally from the second set of apertures.
  • the masonry unit is a first masonry unit
  • the anchor bar is a first anchor bar
  • the system further includes a second masonry unit the same as the first masonry unit, and a second anchor bar the same as the first anchor bar, wherein the first anchor bar is received in the anchor bar channel of the first masonry unit, wherein the second masonry unit is situated on top of but at a right angle with respect to the first masonry unit at a corner of a masonry structure, wherein the second anchor bar is received in the anchor bar channel of the second masonry unit, and wherein the first set of apertures of the second anchor bar is located vertically above the second set of apertures of the first anchor bar, such that the first non-threaded aperture of the first set of apertures of the second anchor bar is substantially vertically aligned with the second threaded aperture of the second set of apertures of the first anchor bar.
  • the fastener may extend through the first non- threaded aperture of the first set of apertures of the second anchor bar and into threadable engagement with the
  • the masonry unit is one of a plurality of the same masonry units
  • the anchor bar is one of a plurality of the same anchor bars
  • the fastener is one of a plurality of the same fasteners
  • the pluralities of masonry units, anchor bars, and fasteners forming a corner of a wall structure having multiple levels, wherein each anchor bar of the plurality of anchor bars at the corner overlaps vertically at a substantially right angle with the anchor bars of the plurality of anchor bars at the levels above and below.
  • the anchor bar further includes a visual indicator, for example a painted spot of a particular color, distinguishing one side of the anchor bar from another side, and/or one end of the anchor bar from the other end.
  • the anchor bar has a first end and a second end
  • the first set of apertures is the closest set of apertures to the first end
  • another set of apertures closest to the second end has the same placement as the second set of apertures while being longitudinally spaced from the first set of apertures.
  • the masonry unit further includes a third through-cavity separating the first and second through-cavities, and may also have a first half through-cavity at the first end and a second half through-cavity at the second end.
  • the first non- threaded aperture and the first threaded aperture are located along a first line that forms a forty-five degree angle with the longitudinal centerline, and the second non- threaded aperture and the second threaded aperture are located along another line that is perpendicular to the first line.
  • the first non-threaded aperture may be on a different side of the longitudinal centerline than the second non-threaded aperture.
  • An elongated anchor bar for concrete masonry unit systems includes a first set of apertures, the first set of apertures comprising a first non-threaded aperture and a first threaded aperture, wherein the first non-threaded aperture and the first threaded aperture are located in first and second diagonally opposing quadrants of a coordinate system defined by a longitudinal centerline of the anchor bar and a line that is perpendicular to the longitudinal centerline; a second set of apertures neighboring the first set of apertures, the second set of apertures comprising a second non-threaded aperture that is substantially the same as the first non-threaded aperture, and a second threaded aperture that is substantially the same as the first threaded aperture, wherein the second non-threaded aperture and the second threaded aperture are located in third and fourth diagonally opposing quadrants of the coordinate system but spaced longitudinally from the first set of apertures.
  • the first non-threaded aperture and the first threaded aperture may be located along a first line that forms a forty-five degree angle with the longitudinal centerline, and the second non-threaded aperture and the second threaded aperture may be located along another line that is perpendicular to the first line.
  • the elongated first non-threaded aperture may be located on a different side of the longitudinal centerline than the second non- threaded aperture.
  • FIG. 1A illustrates a concrete masonry unit, according to embodiments of the present invention.
  • FIG. 1 B illustrates an anchor bar, according to embodiments of the present invention.
  • FIG. 2B illustrates a detailed view of a first kind of hole placement, according to embodiments of the present invention.
  • FIG. 2C illustrates a detailed view of a second kind of hole placement, according to embodiments of the present invention.
  • FIG. 3A illustrates a hole placement diagram for anchor bar apertures, according to embodiments of the present invention.
  • FIG. 3B illustrates a detailed view of a first kind of hole placement, according to embodiments of the present invention.
  • FIG. 3C illustrates a detailed view of a second kind of hole placement, according to embodiments of the present invention.
  • FIG. 4A illustrates an existing anchor bar.
  • FIG. 5A illustrates an existing masonry unit and anchor bar.
  • FIG. 5B illustrates an existing masonry unit construction system.
  • FIG. 5C illustrates a masonry unit and anchor bar, according to embodiments of the present invention.
  • FIG. 5D illustrates a masonry unit construction system, according to embodiments of the present invention.
  • FIG. 6A illustrates an existing construction method for concrete masonry units,.
  • FIG. 6B illustrates a construction method for concrete masonry units, according to embodiments of the present invention
  • FIG. 6C illustrates an existing construction method for concrete masonry units.
  • FIG. 7A illustrates a top view of a concrete masonry unit, according to embodiments of the present invention.
  • FIG. 7B illustrates a cross-sectional view of the concrete masonry unit of FIG. 7A taken along line A-A of FIG. 7A, according to embodiments of the present invention.
  • FIG. 7C illustrates a cross-sectional view of the concrete masonry unit of FIGS. 7A and 7B taken along line B-B of FIG. 7B, according to embodiments of the present invention.
  • FIG. 7D illustrates a perspective view of the concrete masonry unit of
  • FIGS. 7A to 7C according to embodiments of the present invention.
  • FIG. 8A illustrates a top view of a concrete masonry unit.
  • FIG. 8B illustrates a cross-sectional view of the concrete masonry unit of FIG. 8A taken along line A-A of FIG. 8A.
  • FIG. 8C illustrates a cross-sectional view of the concrete masonry unit of FIGS. 8A and 8B taken along line B-B of FIG. 8B.
  • FIG. 8D illustrates a perspective view of the concrete masonry unit of FIGS. 8A to 8C.
  • FIG. 9A illustrates a front elevation cross sectional view of a post tensioning system installed into the concrete masonry unit of FIGS. 8A to 8D.
  • FIG. 9C illustrates a side profile of the anchor bar of FIGS. 9A and 9B under the effect of anchor bar tension.
  • FIG. 9D illustrates a front elevation cross sectional view of a post tensioning system installed into the concrete masonry unit of FIGS. 7A to 7D, according to embodiments of the present invention.
  • FIG. 9E illustrates a front elevation cross-sectional view of the post tensioning system of FIG. 9D under tension, according to embodiments of the present invention.
  • FIG. 9F illustrates a side profile of the anchor bar of FIGS. 9D and 9E under the effect of anchor bar tension, according to embodiments of the present invention.
  • FIG. 10 illustrates a corner junction in a concrete masonry unit structure, according to embodiments of the present invention.
  • FIG. 1 1A illustrates a top plan view of the corner junction of FIG. 10 with anchor bars placed into recesses in the concrete masonry units, according to embodiments of the present invention.
  • FIG. 12B illustrates anchor bar placement for the first block course over the footer block course of FIG. 12A, according to embodiments of the present invention.
  • FIG. 13 illustrates a perspective exploded view of a three-level concrete masonry unit corner system arrangement, according to embodiments of the present invention.
  • Embodiments of the present invention include features of a "three core block” or a block having three whole cores and two half core (or ducts); a shorter span on the duct which provides less deflection of the bar and greater strength (e.g. tensioning) transferred to the block - especially on the block face; and a special configuration of the threaded and nonthreaded apertures for the connection to the bar or pass through of the bolts through bars that facilitate the placement of the sections perpendicularly for corners and tee sections in walls and the like, according to embodiments of the present invention.
  • this post tensioning system is comprised of only a few different types of components - a concrete block or concrete masonry unit 35 (CMU) with extended recessed channels 36 (and other features) in which the hollow cavity 37 is the duct, a series of tendons (such as a through bolt) 34, and a plurality of simple anchors (such as a bar with features) 33.
  • the system is configured with the plurality of adjacent blocks 35 contiguous and touching one another and demountably coupled to each other by tendons 34 and anchors 33. This coupling results in a structure that is formed from a plurality of unitized, post tensioned concrete masonry units (usually called blocks or bricks) that collectively are far stronger than an ordinary block structure built with mortar and standard reinforcing.
  • FIGS. 1A through 1 C are sketches of the components for the general system, according to embodiments of the present invention.
  • FIG. 1A shows a sketch of a three core block (with two half cores) in which the block is made out of a higher strength material (for example, material having normally 4000 psi compressive strength or greater).
  • FIG. 1 B shows the bar/anchor 33A with the threaded and non- threaded apertures at a 45 degree orientation with each other.
  • FIG. 1 C shows the 45 degree orientation of the threaded and nonthreaded apertures.
  • FIGS. 2A through 2C are sketches of the general bar with hole patterns 80 for the system 31 with components and features noted.
  • the bar 33 is shown in FIG. 2A.
  • the aperture orientations are shown in FIGS. 2B and 2C.
  • the holes are placed at distances x and Y from a center point C. This is true for the threaded and non- threaded (smooth) apertures.
  • One skilled in the placement of features such as these will recognize, based on the present disclosure, the relationships at opposite slants. This provides the alignment of the bars that permit corners and tee walls (described below) to be placed at right angles (e.g. perpendicular) and still permit alignment of the holes (apertures) for placement of the bolts (tendons), according to embodiments of the present invention.
  • FIG. 3A through 3C are sketches of the generally longer bar with hole patterns 80.
  • the general arrangements described for FIGS. 2 also apply to FIGS. 3A to 3C, but with six sets of apertures rather than two described above.
  • FIGS. 4A and 4B are sketches of existing bar 33B and current improved bar/anchor 33 for system 31 .
  • the features of the new bar 33 are illustrated in and described with respect to FIGS. 2 and 3, above.
  • FIGS. 5A to 5D are sketches of existing (FIG. 5 A and B) components, as well as components for the system 31 (FIG. 5 C and D) according to embodiments of the present invention, without the linear footer block shown.
  • FIG. 5A and B show the existing bar 33B with the straight line alignment of the through hole (smooth) and threaded hole.
  • the fasteners 34 and the basic two duct block 35A with a recess channel is also shown.
  • FIG. 5C and D show the new bar 33A with the forty- five degree alignment of the through hole (smooth) and threaded hole.
  • the fasteners 34 and the basic three duct block 35 with a recess channel 36 are also shown.
  • FIGS. 7A through 7D show the top, side, end and isometric sketches of the block unit 35 for the system 31 .
  • the features depicted include the ducts 37 and the recess space 36.
  • the overall strength is 4000 psi or greater based on the ASTM C 140 specification.
  • FIGS. 8A through 8D show the top, side, end, and isometric sketches of the block unit for an existing post tension system, with the two core 37 block 35A and the recess 36.
  • FIGS 9A through 9C show sketches of sections of existing blocks and tension systems with the bolts torqued and the bars drawn into tension as the connection between the blocks occur with the existing two core, straight line units.
  • FIGS 9D through 9F show sketches of sections of new improvement with the bolts torqued and the bars drawn into tension as the connection between the blocks occur with the new three core, angled apertures on the bar, according to embodiments of the present invention.
  • the advent of the added core for the new system 31 reduces the width of span W from the two core to the three core to 1/2 or W/2.
  • the span reduction also reduces the effective deflection from D to D/2 .
  • additional torque may be applied to the system without severe deflection to the bar and without excessive transfer of stresses to the block face. Therefore, the resistive forces of the bar, bolt and block combination are significantly increased. This translates into a wall system that is stronger and more capable of withstanding wind and earth pressures, as well as seismic events.
  • FIG. 13 shows a sketch of the corner assembly of the system 31 with various components. Operation of system 31 is additionally described below with respect to FIGS. 6 and FIGS. 10 through 13.
  • FIGS. 6A through 6C show sketches of the process and/or steps used to assemble the system 31 . According to some embodiments of the present invention, these steps, illustrated in FIGS. 6A and 6B, include:
  • FIGS 10 provide sketches of a corner assembly 73 (block only) for system 31 . Shown are the top, right and left side, back and front and isometric view for the new system 31 .
  • FIGS. 1 1A and 1 1 B show the corner 75 with the various components and a building section 76 of the same.
  • FIGS 12 A and 12 B show the footer block 74 and first course 75 for system 31 , according to embodiments of the present invention.
  • FIG. 13 show a sketch of the corner assembly of the system 31 with the various components labeled.
  • Embodiments of the present invention permit a shorter span of the bar over the duct; alignment of all the ducts allowing for placement of utility lines in the duct (e.g. piping and wiring or conduit); addition of insulation; addition of grout; and/or addition of other structural members such as tubing, pies or rebar; angular placement of the through holes and threaded holes to permit perpendicular connections at tee walls and corners, and/or the like.
  • 1 A permits the bottom face of one block 35 to line up directly with a top face of another block 35 or set of blocks 35 when installed, to create a clear channel for pipes, wires, and the like, as well as insulation, grouting, or structural steel such as tubing or other shapes for the purpose of adding extra strength.
  • This vertical alignment due to the exact half-through-holes at each end of block 35 also permits matching surfaces for improved load bearing and minimization of point loading, permitting a stronger and more durable structure, according to embodiments of the present invention. In a block system using double-core-hole blocks 35A, however, this precise vertical alignment of surfaces is not possible while also staggering the blocks.
  • the anchor bars 33A of embodiments of the present invention may be aligned and used in accordance with patterns such as the patterns of FIGS. 8 to 10 of U.S. Patent Application Publication No. 2008/0098687, published on May 1 , 2008, which is incorporated herein by reference in its entirety for all purposes.
  • any patterned anchor bar of any length may be used to make any configurations, solids, walls, tees, hollow, irregular shapes of solids, overhangs, pilasters, belled piers, lintels, self lintels, and the like.
  • Such an anchor bar system may be used in any of eight ways: four ways at 0 degrees, 90 degrees, 180 degrees, 270 degrees, and then four other ways after the anchor bar has been turned over, at 0 degrees, 90 degrees, 180 degrees, 270 degrees.
  • This will make any desired structure configuration, according to embodiments of the present invention.
  • This feature lets the designer builder mix and match all of the different kinds of blocks, as the bolt pattern matches perfectly with each, according to embodiments of the present invention.
  • the recesses 36 in the block 35 include crumb pockets, or the V-shaped grooves formed at the bottom of the recesses 36.
  • crumb pockets may also be included in depressions in square-ended blocks as a special recess.
  • Crumb removal is features such as these permit the blocks to be ready to go, such that the worker installing the blocks does not have to first knock crumbs off before use, thus saving much construction time.
  • a small blower may be used, and with the crumb pockets the crumbs get out of the way rather than being redistributed on the block.
  • the end lengths of the anchor bar ends almost exactly line up with the edges of the vertical faces of the webs of the blocks. This permits the worker to put the anchor bar in place in the recess of the block without looking where the anchor bar is placed horizontally, because the worker just naturally touches his finger on the end of the bar above the vertical web face and knows it is in the correct place, thus also saving much construction time.
  • the system 31 may be assembled and/or used and/or configured in any orientation.
  • a wall built in the way shown and described above could be used with the tendons and bolts horizontal in the wall by rotating the wall ninety degrees through the vertical plane.
  • the projects can be placed or built in any of the infinite planes that exist in three dimensional geometry, according to embodiments of the present invention.
  • Running bonds, stack bonds, fluted blocks, and/or all the other kinds can all be mixed and matched in structural projects using embodiments of the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Retaining Walls (AREA)

Abstract

Cette invention concerne un système de construction de structures avec des unités de maçonnerie en béton. Selon certains modes de réalisation de l'invention, ledit système comprend une barre d'ancrage présentant des jeux d'ouvertures filetées et non filetées pour relier les couches supérieures et inférieures au moyen d'éléments d'attache. Chaque jeu d'ouvertures filetées et non filetées présente un décalage sur un angle de quarante-cinq degrés par rapport à un axe longitudinal de la barre d'ancrage. Ceci permet d'améliorer la résistance des connexions d'angle en chevauchement vertical de la barre d'ancrage et de minimiser les variations des composants à fabriquer afin d'admettre une plus grande plage de fonctionnalités de la structure de maçonnerie en utilisant des composants simples.
PCT/US2011/035965 2010-05-11 2011-05-10 Configurations pour système de blocs post-contraints par unités WO2011143248A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US33373710P 2010-05-11 2010-05-11
US61/333,737 2010-05-11

Publications (1)

Publication Number Publication Date
WO2011143248A1 true WO2011143248A1 (fr) 2011-11-17

Family

ID=44914681

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2011/035965 WO2011143248A1 (fr) 2010-05-11 2011-05-10 Configurations pour système de blocs post-contraints par unités

Country Status (1)

Country Link
WO (1) WO2011143248A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1276651A (en) * 1968-04-08 1972-06-07 Imric Vojtech Porsolt Improved building construction block
US4514949A (en) * 1983-05-06 1985-05-07 Crespo Jorge L N Interlocking system for building walls
WO1992013148A1 (fr) * 1991-01-24 1992-08-06 Leggott, Mark, Sydney Procede de construction d'un mur en maçonnerie
US20080098687A1 (en) * 2006-10-27 2008-05-01 Marsh Roger F Super unitized post tension block system for high high strength masonry structures - with SuperStrongBloks
US20080256894A1 (en) * 2007-04-19 2008-10-23 Marsh Roger F Special and improved configurations for unitized post tension block systems for masonry structures

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1276651A (en) * 1968-04-08 1972-06-07 Imric Vojtech Porsolt Improved building construction block
US4514949A (en) * 1983-05-06 1985-05-07 Crespo Jorge L N Interlocking system for building walls
WO1992013148A1 (fr) * 1991-01-24 1992-08-06 Leggott, Mark, Sydney Procede de construction d'un mur en maçonnerie
US20080098687A1 (en) * 2006-10-27 2008-05-01 Marsh Roger F Super unitized post tension block system for high high strength masonry structures - with SuperStrongBloks
US20080256894A1 (en) * 2007-04-19 2008-10-23 Marsh Roger F Special and improved configurations for unitized post tension block systems for masonry structures

Similar Documents

Publication Publication Date Title
US6915614B2 (en) Bricklaying structure, bricklaying method, and brick manufacturing method
US4651485A (en) Interlocking building block system
US8601758B2 (en) Interlocking construction blocks
US8099918B2 (en) Special and improved configurations for unitized post tension block systems for masonry structures
CA2511630C (fr) Systeme de mur en maconnerie
US8850763B2 (en) Super unitized post tension block system for high high strength masonry structures—with SuperStrongBloks
US4896469A (en) Prefabricated building panel assembly
US9528263B2 (en) Self-aligning interlocking construction blocks
EP2622146B1 (fr) Bloc de construction
CA2574647C (fr) Bloc en beton
US9068351B1 (en) Interlocking construction blocks
US20180245345A1 (en) Masonry Block With Partial Cells
WO2009140618A1 (fr) Système et procédé de meulage de précision et installation de mise à niveau automatique de systèmes de maçonnerie en béton
US10094110B2 (en) Masonry wall assembly
US20080271401A1 (en) Wall-forming system and related method
US4887403A (en) Internally indexed building block and method of construction
GB2394730A (en) Mortarless brick and locking bolt building system
WO2011143248A1 (fr) Configurations pour système de blocs post-contraints par unités
JPH06299621A (ja) ブロック組積構造
US6912819B2 (en) Fastening element for masonry units
KR101320697B1 (ko) 거푸집 연결구 및 이를 이용한 거푸집 연결 방법
KR100522746B1 (ko) 무해체 구조의 거푸집 및 그 제작방법
US11525258B2 (en) Masonry block anchor system
KR100504137B1 (ko) 적벽돌로 개구부 상부 또는 상인방 시공하는 방법 및 그제품
US11512482B2 (en) Device for connecting and separating masonry units

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11781165

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11781165

Country of ref document: EP

Kind code of ref document: A1