US1060922A - Arch. - Google Patents

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Publication number
US1060922A
US1060922A US637454A US1911637454A US1060922A US 1060922 A US1060922 A US 1060922A US 637454 A US637454 A US 637454A US 1911637454 A US1911637454 A US 1911637454A US 1060922 A US1060922 A US 1060922A
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US
United States
Prior art keywords
arch
crown
tension
section
rods
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
US637454A
Inventor
Daniel B Luten
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Individual
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Individual
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Publication date
Priority claimed from US25716505A external-priority patent/US1060917A/en
Application filed by Individual filed Critical Individual
Priority to US637454A priority Critical patent/US1060922A/en
Application granted granted Critical
Publication of US1060922A publication Critical patent/US1060922A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
    • E02D29/05—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them at least part of the cross-section being constructed in an open excavation or from the ground surface, e.g. assembled in a trench

Definitions

  • illy invention relates to improvements iu arches and has for its purpose to provide an arch structure with its upper and lower surfaces curved in the usual way transvers gitudinally ol the and concave outwardlyj and the resulting structure "reinforced to produce ⁇ Qjreat strength with miniuuun materials and labor.
  • the present application constitutes a division ot' an application tiled by me April 2l, i905, Serial fio. 257,165.
  • Figure l is a longitudinal section of an arch
  • Fig. is a transverse section at the crown.
  • Figisa transverse section through the abutment, Fig; ⁇ rl; is a perspective view of a halt arch embodying' my improvement, and
  • Fig. 5 is a plan view of such an arch.
  • Theupper and lower surfaces of the arch are of the form of a warped surface somewhat similar to a shoe-horn, as shown in Fig. Ll.
  • a surface that can be rolled out on a plane, as a cylinder or cone, or any other developable surface, which is 'necessarily generated by the motion ot ay right line in parallel or intersecting positions will crack easily along one o the lines of generation when distorted; buty a warped or double curved surface of the form shown cannot ashamed; or breal; along a straight line but must separate on a curved line.
  • Longitudinal tension rods are passed lon- 1 lefitudinally through the arch and at the h aunches are closely grouped near the tension edges which are the upper outside edges or the arch near its ends. At the crown ot' the arch they are more closely lo the axis of the arch. but also curved longrouped near the center and preferably pass diagonally across the roadway. Thus as is shown in detail in Fig. lthe rods pass near the edges 4l at the haunches and near the center il2 at the crown.
  • a reinforced concrete arch comprising a concrete body having a cross-section of an inverted arch shape, and reinforcing medi-v bers embedded in the .arch and crossingA each other diagonally.
  • a reinforced concrete arch having a cross-section of inverted arch form, and with embedded reinforcing members concentrated near the middle at the crownand near the sides over the abntments.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Description

D. B. LUTEN.
ARCH.
APPLIOATIOX FILED JULY e, 1911.
@@FQQ Patente May 64913 DANIEL B. LUTEN, OF INDIANAPOLS, ENDIABLL.
ARCH.
renonce.
Original application lecl April 24, 1505, Serial No. 257,165.
Specification of Letters Patent.
vindianapolis. iu the county of Marion and i State ot indiana. have invented a new and useful Improvement in Arches, of which the v following is a specification.
illy invention relates to improvements iu arches and has for its purpose to provide an arch structure with its upper and lower surfaces curved in the usual way transvers gitudinally ol the and concave outwardlyj and the resulting structure "reinforced to produce `Qjreat strength with miniuuun materials and labor.
The present application constitutes a division ot' an application tiled by me April 2l, i905, Serial fio. 257,165.
The invention is illustrated in the accompanyimoT drawings in which the saine reference characters designate like parts throughout the several views.
Figure l is a longitudinal section of an arch, Fig. is a transverse section at the crown. Figisa transverse section through the abutment, Fig; `rl; is a perspective view of a halt arch embodying' my improvement, and Fig. 5 is a plan view of such an arch.
Theupper and lower surfaces of the arch are of the form of a warped surface somewhat similar to a shoe-horn, as shown in Fig. Ll. A surface that can be rolled out on a plane, as a cylinder or cone, or any other developable surface, which is 'necessarily generated by the motion ot ay right line in parallel or intersecting positions will crack easily along one o the lines of generation when distorted; buty a warped or double curved surface of the form shown cannot cruel; or breal; along a straight line but must separate on a curved line. It is for this reason that the shoe-horn is so 'much stiffer and resists distortion so much more etliciently than would the same piece of metal it merely of the usual 'form of' arch without curvature longitudinal ot the arch axis. It new the :form of arch proposed be made ot concrete with steel embedded across the probable line of fracture this form of arch will require much greater stretch of the em- ;Patentc May 6., il.
Divided and this application :tiled July 8,
Serial No. 637,454.
bedded steel than the type of arch curved in one direction only. And consequently its strength would be greatly increased or the same strength secured with decreased material.
Longitudinal tension rods are passed lon- 1 lefitudinally through the arch and at the h aunches are closely grouped near the tension edges which are the upper outside edges or the arch near its ends. At the crown ot' the arch they are more closely lo the axis of the arch. but also curved longrouped near the center and preferably pass diagonally across the roadway. Thus as is shown in detail in Fig. lthe rods pass near the edges 4l at the haunches and near the center il2 at the crown. and while the rods 35 will be atl 4l on one side of the roadwayv for that end of the arch these same rods will cross diagonally across the roadway through the crown ot' the arch to the corresponding edge on the other side of the roadway at the opposite end of the arch. The regions of trreaest tension in such an arch will be when loaded with a concentrated load at the crown, at the center at the crown and at the sides over the haunches. Hence such an arrangement of diagonal members for reinforcement eitectually reinforces the structure at its greatest tension regions. nd by this means the regions of greatest tension where greatest separation of the material would resultin case of fracture, are reinforced with rods or other members concentrated at those regions and with the reinforcing`v members running in substantially straight lines through these tension regions.
, l claim l. A reinforced concrete arch comprising a concrete body having a cross-section of an inverted arch shape, and reinforcing medi-v bers embedded in the .arch and crossingA each other diagonally.
i2. A reinforced concrete arch having a cross-section of inverted arch form, and with embedded reinforcing members concentrated near the middle at the crownand near the sides over the abntments.
3. concrete arch having;I a cross-section or inverted arch form, and reinforoingmembers embedded in the arch and substantially m :eeeeeee straight through the tension regimi@ et my hand and see et indianapolis, 'limiiarrm9 crown and heunehes. this 6th dej' of Jul A, D, wie thousand e. A reinforced concrete arch having a nine hundred and e even.. cross-section of inverted meh form, and 'DANXEL B. LUTEFILJ.4 [Leij 5 with embedded reinforcing members e011- Witne'sses: Y
vceaeti'ated neer the middle et the crown. B. H. Meme,
f n Witness whereof, L'heve hereunto set PAUL KLINGENSMHH.
US637454A 1905-04-24 1911-07-08 Arch. Expired - Lifetime US1060922A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US637454A US1060922A (en) 1905-04-24 1911-07-08 Arch.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US25716505A US1060917A (en) 1905-04-24 1905-04-24 Arch.
US637454A US1060922A (en) 1905-04-24 1911-07-08 Arch.

Publications (1)

Publication Number Publication Date
US1060922A true US1060922A (en) 1913-05-06

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US637454A Expired - Lifetime US1060922A (en) 1905-04-24 1911-07-08 Arch.

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1113955B (en) * 1958-12-19 1961-09-21 Silberkuhl Wilhelm Johannes Elevated road or bridge made of reinforced concrete with prestressed hollow girders arranged in the direction of the road or bridge
US3084481A (en) * 1958-12-19 1963-04-09 Silberkuhl Wilhelm Johannes Prestressed concrete bodies
US3142136A (en) * 1958-03-03 1964-07-28 Wilhelm J Silberkuhl Hyperboloidal shell for roof vaults and the like

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3142136A (en) * 1958-03-03 1964-07-28 Wilhelm J Silberkuhl Hyperboloidal shell for roof vaults and the like
DE1113955B (en) * 1958-12-19 1961-09-21 Silberkuhl Wilhelm Johannes Elevated road or bridge made of reinforced concrete with prestressed hollow girders arranged in the direction of the road or bridge
US3084481A (en) * 1958-12-19 1963-04-09 Silberkuhl Wilhelm Johannes Prestressed concrete bodies

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