US3402560A - Acoustically deadened piling - Google Patents

Acoustically deadened piling Download PDF

Info

Publication number
US3402560A
US3402560A US563222A US56322266A US3402560A US 3402560 A US3402560 A US 3402560A US 563222 A US563222 A US 563222A US 56322266 A US56322266 A US 56322266A US 3402560 A US3402560 A US 3402560A
Authority
US
United States
Prior art keywords
shell
coating
piling
deadened
acoustically
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
US563222A
Other languages
English (en)
Inventor
Alm Karl Staffan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Atlas Copco AB
Original Assignee
Atlas Copco AB
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 Atlas Copco AB filed Critical Atlas Copco AB
Application granted granted Critical
Publication of US3402560A publication Critical patent/US3402560A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D33/00—Superstructures for load-carrying vehicles
    • B62D33/06—Drivers' cabs
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
    • E02D13/005—Sound absorbing accessories in piling
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/02—Sheet piles or sheet pile bulkheads
    • E02D5/03—Prefabricated parts, e.g. composite sheet piles
    • E02D5/04—Prefabricated parts, e.g. composite sheet piles made of steel

Definitions

  • Acoustically deadened piling including a substantially elongated solid steel pile body capable of withstanding longitudinally directed impacts and having disposed substantially over the surface of one and/or both sides thereof a coating of visco-elastic material, a thin metallic shell disposed over said coating in sandwich fashion and covering said coating, and welded points between said shell and said pile body for holding the entire structure together while still providing a spaced apart relationship between said body and said shell for accommodating said coating. Also included within the concept of said welded points is a welded seam extending along one end edge of said piling body and said shell which provides a firm driving edge for said piling body as it is driven into the ground.
  • This invention relates to piling and more particularly to acoustically deadened piling.
  • acoustically deadened piling During driving of metallic piles and particularly of sheet piling by the aid of percussive machines such as pneumatic hammers one receives with bare steel piles a ringing metallic noise with very high sound pressure levels and within the frequency range of 2000 to 8000 hertz. This high frequency noise is heavily disturbing for the surroundings and makes pile driving in habitatcd areas difiicult to tolerate.
  • an acoustically deadened piling comprising an elongated steel pile body, a band shaped coating of vibration damping material on the surface of said pile body extending along the major portion of its length, a metallic shell substantially parallel with the outer surface of said pile body and covering said coating, and means connecting said shell to said pile body under the formation of a clearance therebetween filled by said coating.
  • the shell keeps the band of vibration damping material in place on the surface of the pile, protects the band from wearing away during driving and maintains its thickness constant at the desired optimum value.
  • the shell furthermore takes up and diverts outwardly the heat accumulating in the coating as a result of its vibration damping action. This effective heat diversion makes possible the use of temperature sensitive high molecular viscoelastic materials in the coating band and these material compositions are especially effective in deadening high frequency noise.
  • FIG. 1 is a cross sectional view through a steel pile embodying the invention.
  • FIG. 2 is a longitudinal section on the line 2-2 in FIG. 1.
  • FIG. 3 shows a perspective view of the lower end of the steel pile in FIG. 1.
  • FIG. 4 is a cross section through modified sheet piling of Z-form embodying the invention.
  • FIG. 5 is a longitudinal section on the line 5-5 in FIG. 4.
  • FIG. 6 is a perspective view of the longer end of the piling in FIG. 4.
  • the piling or steel pile in FIGS. 1-3 is designated by 10 and is provided with locking flanges 11.
  • the piling shown is commonly known to be of so called Larssentype.
  • On one broad side of the pile 10 is applied a band extending along the major portion of the length of the pile and consisting of a coating 12 of vibration damping material.
  • the coating 12 is covered by a sheet metal or steel shell 13 substantially parallel with the surface of the piling.
  • the thickness of the shell is chosen equal to or close to a third of the thickness of the pile.
  • the shell 13 is aflixed to the pile 10 by welding in the portions or spots 14 along the longitudinal edges of the shell 13.
  • a welded seam 15 forms the lower edge of the shell 13.
  • the welded portions 14 keep the shell 13 affixed to the piling under the formation of a clearance therebetween entirely filled by the coating 12.
  • the coating band 12 is smaller in thickness than the shell 13.
  • the pile 10 has a reinforcing strip 16 welded thereto.
  • the thickness of the strip 16 is greater than the sum of the thicknesses of the shell 13 and the coating band 12.
  • a coating material applicable in connection with the invention is rubber.
  • the rubber is applied to the pile preferably in the form of a cold curing (cold vulcanizing) paste.
  • a cold curing (cold vulcanizing) paste receives good noise deadening for example by the use of the synthetic polysulphide rubber sold under the trademark Thioflex" by Bigner & Co. Aktiebolag, Lidingo, Sweden.
  • a viscoelastic coating of high polymer mixture components with an optimal absorption of deformation energy within a temperature range between 20 and degrees Centigrade.
  • Such viscoelastic compositions with the desired active temperature range are sold by Farbwerke Hoechst Aktiengesellschaft, Frankfurt am Main, The Federal German Republic, and may for example contain polymers of vinyl acetate, acrylic ester, vinyl propionate, vinyl acetate and vinyl chloride alone or in mixture or in some cases with an addition of a suitable softener.
  • the usually narrow marked viscoelastic temperature range can be influenced as to its position and width by suitably varying the mixture components.
  • the polymer or copolymer mixture may be added mica or graphite or preferably the mica-mineral vermiculite to the extent of 20 to Especially vermiculite expanded through heating is advantageous because of its porosity.
  • composition of the coating may be mentioned:
  • Polyvinyl propionate with the addition of 40 to 60% graphite or vermiculite.
  • two Z-shaped steel piles 18, 19 are lockable to one another and to other similar piles by joining strips 20.
  • both piles 18, 19 are covered on the one broad side thereof by a sheet metal or steel shell 21 welded thereonto and covering the vibration damping coating band 22.
  • the shell 21 is provided with through holes 23 the edges of which are welded in the spots 24 fast to the piles 18, 19.
  • the shell and the coating band may be applied in doublesided relation to the piles which in FIG. 4 is illustrated by line 25 at the opposite side of the shell 21 and band 22 on pile 19.
  • An acoustically deadened piling comprising an elongated substantially solid steel pile body, a band shaped coating of vibration damping material on the surface of said pile body extending along the major portion of its length, a metallic shell substantially parallel with the outer surface of said pile body and covering said coating, and means connecting said shell to said pile body under the formation of a clearance therebetween filled by said coating.
  • An acoustically deadened piling comprising an elongated substantially solid sheet steel pile body, a band shaped coating of vibration clamping material covering the major portion of the surface of one side of said body and extending over the major portion thereof, a steel shell substantially parallel with the surface of said one broad side and covering said coating, said coating having a thickness smaller than said shell, and means connecting said shell to said body under the formation of a clearance therebetween substantially entirelyfilled by said coating.
  • Piling according to claim 2 in which the ratio between the thickness of said shell and the thickness of said body is equal or close to the value 1:3.
  • An acoustically deadened piling comprising an elongated substantially solid sheet steel pile body, a band shaped coating of vibration damping material covering the major portion of the surface of at least one side of said body and extending over the major portion thereof,- a steel shell substantially parallel with, the surface of said one side and covering said coating, Welded joints applied between said body and the longitudinal edges of said shell connecting said body and shell under the formation of a clearance therebetween filled by said coating, and a welded seam forming the lower edge of said shell.
  • An acoustically deadened piling comprising an elongated substantially solid sheet steel pile body, a pair of band shaped coatings of vibration damping material each covering the major portion of one of the surfaces of the opposed sides of said body and extending over the major portion thereof, a pair of steel shells substantially parallel with the respective surfaces of said sides and covering said coatings thereon, said coatings having a thickness smaller than said shells, and means connecting said shells to said body under the formation of a clearance therebetween substantially entirely filled 'by said coatings.
  • An acoustically deadened piling comprising an elongated steel pile body, a band shaped coating of vibration damping material on the surface of said pile body extending along the major portion of its length, a metallic shell substantially parallel with the outer surface of said pile body and covering said coating, means connecting said shell to said pile body under the formation of a clearance therebetween filled by said coating, and a reinforcing strip disposed on one end edge of said pile body and connected thereto in front of said coating and said shell, the thickness of said strip being equal to or greater than the sum of the thickness of said shell and said coating.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Combustion & Propulsion (AREA)
  • Composite Materials (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • Piles And Underground Anchors (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Laminated Bodies (AREA)
US563222A 1965-07-13 1966-07-06 Acoustically deadened piling Expired - Lifetime US3402560A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE920765 1965-07-13

Publications (1)

Publication Number Publication Date
US3402560A true US3402560A (en) 1968-09-24

Family

ID=20276120

Family Applications (1)

Application Number Title Priority Date Filing Date
US563222A Expired - Lifetime US3402560A (en) 1965-07-13 1966-07-06 Acoustically deadened piling

Country Status (7)

Country Link
US (1) US3402560A (xx)
AT (1) AT270512B (xx)
BE (1) BE683998A (xx)
CH (1) CH458221A (xx)
DE (1) DE1634228B1 (xx)
GB (1) GB1091804A (xx)
NL (1) NL6609774A (xx)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3827530A (en) * 1973-07-02 1974-08-06 A Heath Vibration-damping system
US4152873A (en) * 1977-09-14 1979-05-08 National Gypsum Company Bonded two piece metal stud
US4407390A (en) * 1979-09-19 1983-10-04 Joy Manufacturing Company Pneumatic motor
JPS59224719A (ja) * 1983-06-06 1984-12-17 Nippon Steel Corp 重防食被覆鋼矢板
US4527371A (en) * 1981-06-15 1985-07-09 Ifm-Akustikbyran Ab Structural damping
US4778028A (en) * 1986-11-03 1988-10-18 General Electric Company Light viscoelastic damping structure
US4954375A (en) * 1988-12-29 1990-09-04 Westinghouse Electric Corp. Vibration damping apparatus
US5028166A (en) * 1989-10-19 1991-07-02 Product Research And Development Highway guidepost
US5879765A (en) * 1995-08-31 1999-03-09 Nippon Steel Corporation Thin metallic sheet structure having sound damping characteristics
US20130327588A1 (en) * 2012-06-12 2013-12-12 Justin Christenson Methods and apparatus for reducing noise in reinforced skin structures
USD821611S1 (en) * 2017-05-23 2018-06-26 Joshua George SINGH Trim reveal extrusion
USD833650S1 (en) * 2017-05-23 2018-11-13 Joshua George SINGH Trim reveal extrusion
USD850895S1 (en) * 2017-12-12 2019-06-11 Jens Rehhahn Sheet pile
USD866308S1 (en) * 2017-12-12 2019-11-12 Jens Rehhahn Sheet pile

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013019288A1 (de) * 2013-11-19 2015-05-21 Rwe Innogy Gmbh Rammpfahl sowie Verfahren zur Einbringung eines Rammpfahls in den Meeresuntergrund

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2034379A (en) * 1935-06-22 1936-03-17 P H Murphy Co Car roof
US3078971A (en) * 1960-01-11 1963-02-26 Lord Mfg Co Damped beam

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2034379A (en) * 1935-06-22 1936-03-17 P H Murphy Co Car roof
US3078971A (en) * 1960-01-11 1963-02-26 Lord Mfg Co Damped beam

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3827530A (en) * 1973-07-02 1974-08-06 A Heath Vibration-damping system
US4152873A (en) * 1977-09-14 1979-05-08 National Gypsum Company Bonded two piece metal stud
US4407390A (en) * 1979-09-19 1983-10-04 Joy Manufacturing Company Pneumatic motor
US4527371A (en) * 1981-06-15 1985-07-09 Ifm-Akustikbyran Ab Structural damping
JPS59224719A (ja) * 1983-06-06 1984-12-17 Nippon Steel Corp 重防食被覆鋼矢板
JPH0226013B2 (xx) * 1983-06-06 1990-06-07 Nippon Steel Corp
US4778028A (en) * 1986-11-03 1988-10-18 General Electric Company Light viscoelastic damping structure
US4954375A (en) * 1988-12-29 1990-09-04 Westinghouse Electric Corp. Vibration damping apparatus
US5028166A (en) * 1989-10-19 1991-07-02 Product Research And Development Highway guidepost
US5879765A (en) * 1995-08-31 1999-03-09 Nippon Steel Corporation Thin metallic sheet structure having sound damping characteristics
US20130327588A1 (en) * 2012-06-12 2013-12-12 Justin Christenson Methods and apparatus for reducing noise in reinforced skin structures
US9016628B2 (en) * 2012-06-12 2015-04-28 The Boeing Company Methods and apparatus for reducing noise in reinforced skin structures
USD821611S1 (en) * 2017-05-23 2018-06-26 Joshua George SINGH Trim reveal extrusion
USD833650S1 (en) * 2017-05-23 2018-11-13 Joshua George SINGH Trim reveal extrusion
USD850895S1 (en) * 2017-12-12 2019-06-11 Jens Rehhahn Sheet pile
USD866308S1 (en) * 2017-12-12 2019-11-12 Jens Rehhahn Sheet pile

Also Published As

Publication number Publication date
NL6609774A (xx) 1967-01-16
DE1634228B1 (de) 1970-03-05
CH458221A (de) 1968-06-15
AT270512B (de) 1969-04-25
BE683998A (xx) 1966-12-16
GB1091804A (en) 1967-11-22

Similar Documents

Publication Publication Date Title
US3402560A (en) Acoustically deadened piling
JPH0615113B2 (ja) メタルシートの溶接方法
US3636895A (en) Armor structure
US5368272A (en) Formwork panel having at the edges thereof projecting edge webs of flat material
FI84091C (fi) Saekerhetsdoerr.
JPS5829617A (ja) 架橋ポリエチレンパイプの溶接方法
US2380071A (en) Welding band for pipe joints
US3449545A (en) Method for welding nodular iron to steel
GB1476593A (en) Welded joint
MXPA00007919A (es) Tela metalica y proceso de elaboracion de un cuerpo hueco hecho de tela metalica.
DE689756C (de) Schweissverbindung an Blechen fuer stark durch Stoss und Schlag, insbesondere durch Beschuss beanspruchte Gegenstaende
US1565309A (en) Vertical joint for wall sheets
JP3065186B2 (ja) 内ダイアフラムプレート付き鉄骨
JPH0224542Y2 (xx)
JPH06339788A (ja) 自動溶接用開先部構造
JP2910564B2 (ja) 複合制振金属板
US2058885A (en) Fabricated structure and method of making
SU733920A1 (ru) Способ электронно-лучевой сварки с присадочной лентой таврового соединени
AU646852B2 (en) Connecting means
CA2171541A1 (en) Reinforcement strip
Kotel'nikov Quality Control of Diffusion Welding of Ribbed Panels
Sato et al. Tensile Properties of Welded Joints in 5052-H 34 Alloy
SU1743754A1 (ru) Способ дуговой сварки встык
SU1551498A1 (ru) Способ предотвращени концевых трещин при дуговой сварке
Sato et al. Bending Fatigue Strength of Tee-Shape Joint in Aluminum Alloy 5083