
	Where results make sense

Topic: Falsework

In the News (Sat 28 Nov 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Bracing unit for concrete formwork - Patent 4437640
		A bracing unit to secure a formwork panel to falsework or to a previously poured concrete structure includes a pressurized fluid inflatable and expandable hose and a rigid abutment member for supporting the hose and holding it against the outside surface of the formwork panel.
		In the erection of concrete structures, particularly concrete walls, the formwork panels or sections must be pressed against a falsework structure for the formwork or, when the concrete structure is being constructed in stages or lifts, against the previously poured sections of the structure.
		As a result, it is not necessary for the individual formwork panels to slide along the falsework or on the previously poured concrete section, since an appropriate pressure is exercised over the entire length of the erected formwork with the pressure acting perpendicularly to the formwork.
	www.freepatentsonline.com /4437640.html (1841 words)

	Method of forming a circumferentially closed concrete wall having the same cross-section over the entire height thereof ...
		After the concrete hardens, the falsework rings are released, but are lifted on the support frame so high that their lower portion still remains in the region of the outer edge of the cast wall ring.
		Then, an outer falsework is attached and connected with the inner falsework for forming a circumferentially closed section of the wall, with concrete being poured into the space between the outer and inner falseworks.
		With respect to the inner falseworks, "the same cross-section" means that the cross-sectional surfaces of the falsework boarding, i.e., the surfaces, which are surrounded by the circumferentially closed profiles of the boarding, in cross-section, have the same shape and size.
	www.freepatentsonline.com /6921501.html (3174 words)

	Bridge temporary works research program. (bridge collapse) - Encyclopedia.com
		This article describes recent falsework failures since the Baltimore-Washington Parkway incident which emphasize the even greater need for better guidelines on bridge temporary works and progress to date in fulfilling the Committee's research program mandate.
		falsework for an elevated connector ramp of the
		The collapse of the falsework on the Route 198 overpass over the Baltimore-Washington Parkway precipitated an official recommendation that the FHWA develop better specifications and guidelines.
	www.encyclopedia.com /doc/1G1-11289626.html (1512 words)

	New guidance on the safe erection, use and dismantling of f...
		Falsework is any temporary structure used to support a permanent structure while it is not self-supporting, either in new construction or refurbishment.
		The collapse of falsework structures is often the subject of enquiries to the HSE and others in the industry.
		Investigations into falsework collapses have identified a lack of co-ordination between the various trades and suppliers of falsework as a major cause.
	www.hse.gov.uk /press/2003/e03123.htm (329 words)

	Item 508 Falsework and Forms
		Where the falsework does not rest in rock, shale, or other firm foundation material, it shall be supported on piling driven to sufficient penetration to carry the superimposed loads in accordance with 507, but not less than 8 metric tons (8 tons) per pile.
		The falsework shall not be released or removed from any span until the concrete in adjacent spans has been placed a sufficient length of time to meet all requirements for the removal of falsework as set forth above.
		Falsework and forms will not be paid for separately, but their cost shall be included for payment in the price bid for the item for which they are used.
	www.dot.state.oh.us /spec/508.htm (1043 words)

	CTLGroup - Collapse of Lake Street/M
		Construction of the east arch required the use of falsework with a clear span of 200 ft to maintain the navigation channel of the Mississippi.
		This section of falsework, consisting of four post-tensioned steel trusses supported on steel towers, collapsed during construction of the concrete arch, killing one worker.
		A detailed finite element model of the falsework was also constructed to establish the collapse sequence and cause of the collapse.
	www.ctlgroup.com /template_project.asp?topic=2351 (170 words)

	[No title]
		Design falsework and forms supporting deck slabs and overhangs on girder bridges so that there will be no differential settlement between the girders and the deck forms during placement of deck concrete.
		Foundation support values shown in the contract for the permanent structure may be used in the design of falsework foundations provided foundations are at the same elevation and on the same soil as those of the permanent structure.
		For cast-in-place concrete structures, the calculated deflection of falsework flexural members shall not exceed 1/360 of their span regardless of whether or not the deflection is compensated by camber strips.
	www.cflhd.gov /design/_documents/construction/scr_96/S562-96E.doc (984 words)

	Falsework - Wikipedia, the free encyclopedia
		Falsework refers to temporary structures used in the construction to support arched structures and concrete forms (moulds) in order to hold the component in place until its construction is sufficiently far advanced to support itself.
		Formwork is made of panels and accessories that act as a mold to form a desired shape with concrete (for any purpose), Falsework is the temporary support structure for the forms.
		The props holding the soffit roof are falsework
	en.wikipedia.org /wiki/Falsework (115 words)

	OHS Guidelines Part 20 Construction, Excavation and Demolition - Guidelines Part 20 - Concrete formwork and falsework - ...
		Falsework is defined in CSA Standard S269.1, Falsework for Construction Purposes as meaning structural supports and the necessary bracing required for the support of temporary loads during construction.
		Falsework is often used during the erection of steel structures and bridges to temporarily support members until such time as the structural elements can be connected together and braced to be self-supporting and provide a complete structural system.
		Falsework may also be required and used during the dismantling or demolition of a structure.
	www2.worksafebc.com /Publications/OHSRegulation/GuidelinePart20.asp?ReportID=18777&_from=regulation.healthandsafetycentre.org (827 words)

	Falsework
		Falsework is any temporary structure or framework used in construction work to support materials, equipment or any assembly.
		It is used to support a permanent structure during its erection and until it becomes self-supporting.
		It also discusses other safety measures such as falsework for structures over any area of public access.
	www.osh.govt.nz /order/catalogue/falsework.shtml (76 words)

	Falsework
		Falsework is any temporary structure or framework used in construction work to support materials, equipment or any assembly.
		It is used to support a permanent structure during its erection and until it becomes self-supporting.
		It also discusses other safety measures such as falsework for structures over any area of public access.
	www.osh.dol.govt.nz /order/catalogue/falsework.shtml (76 words)

	California Code of Regulations, Title 8, Section 1717. Falsework and Vertical Shoring.
		(1) Formwork and falsework or shoring for the support of concrete or other materials shall be designed, erected, supported, braced and maintained so as to assure its ability to safely withstand all intended loads during erection, construction, usage and removal.
		(1) After construction of the falsework or vertical shoring system enumerated in section 1717(b)(1) and prior to placement of concrete, a civil engineer, currently registered in California, or authorized representative, shall inspect the falsework or vertical shoring system for conformity with the working drawings.
		The person performing the inspection shall certify in writing that the falsework or vertical shoring system substantially conforms to the workingdrawings and that the material and workmanship are satisfactory.
	www.dir.ca.gov /Title8/1717.html (1179 words)

	Analysis of the Collapse of a Bridge Falsework (Site not responding. Last check: )
		This paper presents the results of the investigation of the collapse of the falsework of a bridge in California.
		The incident occurred during the placement of concrete in the second span of the right bridge.
		At the time of the incident, only 20% of the concrete for the bridge deck had been poured and the vertical supports in the falsework were only loaded up to 50% of their design loads.
	www.pubs.asce.org /WWWdisplay.cgi?0510546 (165 words)

	Avoiding Falsework Failure - a PDH Online Course for Engineers
		This course will discuss the design considerations of bridge falsework and the causes of failure as each element of the falsework system is discussed.
		The principals of falsework design apply to any temporary structural system designed to support the weight of a permanent structure during erection and until the permanent structure is self supporting.
		Many falsework collapses occur during the stripping operations, so the falsework must be designed to be safely dismantled and monitored for adherence to proper procedures.
	www.pdhonline.org /courses/g153/g153.htm (598 words)

	Avoiding Falsework Failure - a PDH Online Course for Engineers
		This course will discuss the design considerations of bridge falsework and the causes of failure as each element of the falsework system is discussed.
		The principals of falsework design apply to any temporary structural system designed to support the weight of a permanent structure during erection and until the permanent structure is self supporting.
		Many falsework collapses occur during the stripping operations, so the falsework must be designed to be safely dismantled and monitored for adherence to proper procedures.
	www.pdhcenter.com /courses/g153/g153.htm (598 words)

	Bridge temporary works research program - bridge collapse Public Roads - Find Articles
		The bill goes on to specify that the research project should produce approved guidelines, improved specifications, and a falsework construction handbook.
		This article describes recent falsework failures since the Baltimore-Washington Parkway incident which emphasize the even greater need for better guidelines on bridge temporary works and progress to date in fulfilling the Committee's research program mandate.
		falsework for an elevated connector ramp of the
	www.findarticles.com /p/articles/mi_m3724/is_n2_v55/ai_11289626 (618 words)

	Parapet cantilever falsework, heavy shoring equipment supplier, temporary towers, heavy shoring equipment suppliers: UK
		From advancing girder systems for multi-span viaduct construction to parapet cantilever replacement works the pre-engineered and modular principle of our products ensures that our falsework solutions are cost effective and meet with the most stringent performance criteria.
		The Mabey Group remains one of the UK's leading designers and suppliers of spanning falsework systems. Based around the Mabey Universal bridge panels, Mabey Support Systems can provide some of the most adaptable and innovative solutions available today.
		Our Mass 25 and Mass 50 systems are regularly used to provide combined crash deck and falsework structures during bridge reconstruction and parapet replacement contracts. Spanning solutions placed along side the existing structure are available using the Mabey Universal panel system to maximise working room and speed installation times.
	www.mabeysupport.co.uk /web/mabey/Falsework.html (467 words)

	Forms, Formwork, Falsework and Re-shoring
		(2) No formwork, falsework or re-shoring shall be loaded in excess of the load that it is designed and constructed to bear.
		(b) by testing the principal components to their ultimate strength in a manner that simulates the actual loading conditions to which the formwork, falsework or re-shoring is likely to be subjected and by applying a reduction factor, in accordance with good engineering practice, to the values of ultimate strength.
		(g) a unitized modular formwork or falsework structure intended to be moved as a unit.
	www.csao.org /WebHelp/Regulations_for_Construction_Projects/General_Construction/Forms_Formwork_Falsework_and_Re_shoring.htm (617 words)

	City of Seattle Standard Specification 6-02.5
		The falsework requires prior placement of shoring or cofferdams as described in Section 2-09.3(3)D.
		In accordance with the requirements of Section 1-05.3(2)F, all falsework and formwork Shop Drawings and design calculations shall be prepared by (or under the direct supervision of) a Professional Engineer, licensed under Title 18 RCW, State of Washington, in the branch of Civil or Structural Engineering.
		Falsework or formwork Shop Drawings will not be reviewed in any case where it is necessary to refer to the calculation sheets for information needed for complete understanding of the falsework and formwork Shop Drawings or how to construct the falsework and formwork.
	www2.ci.seattle.wa.us /util/engineering/ArticleView.asp?ArticleID=6-02.5 (11939 words)

	Beam Bridge (Site not responding. Last check: )
		The balanced cantilever method was developed to minimise the falsework required for insitu construction.
		Erection of falsework crossing a river may be hazardous or even impossible.
		To facilitate the cantilever construction, a short section of the deck with a counter balance to one side (a hammer head) is cast on falsework supported from ground at each pier.
	www.cse.polyu.edu.hk /~ctbridge/beam/beam05.htm (237 words)

	Falsework: Friction Collars - Wadco Industries, Inc. (Site not responding. Last check: )
		When the penetration of an existing structure is not a viable option for whatever reason, the support of loads with the use of friction can be an effective alternative falsework approach.
		The use of screwjacks to facilitate the accurate grading and controled stipping of falsework is commonly incorporated in the collar design.
		Since screwjacks can not be adjusted while loaded, hydraulic jacks are used during the stripping process to remove the loads from the screwjacks, enabling them to be released.
	www.wadcoindustries.com /fwfc.shtml (239 words)

	Bridge engineering - falsework supported by steel girder
		falsework for cantilever portions of a bridge deck are typically supported by the exterior girder (steel or concrete).
		P.S. The bolt is left in place after the falsework is struck.
		The top, horizontal member of the falsework is bolted to the web approx.
	www.eng-tips.com /viewthread.cfm?qid=54630&page=12 (430 words)

	Experience
		Where ground level restrictions required the falsework to span gaps of up to 12m the proprietary falsework system was not suitable.
		A structural steel falsework structure was designed using deep rolled steel sections to span the gaps.
		The falsework supported the composite bridge deck during assembly of the steel deck beams, construction of the concrete deck slab and installation of the cable stays.
	www.ellisdesign.co.uk /experience.htm (1077 words)

	[No title]
		If falsework deficiencies or variations from the approved and sealed plans are found, the falsework design Engineer of Record will provide written approval of the changes.
		When timber falsework with 12’-0” or less clear span is used, the Contractor, subject to the approval of the Engineer, may use a continuous pour or may discontinue the pour at any construction joint shown.
		Construct the 2nd phase falsework by matching the underside of the new deck and transitioning to full camber on the exterior face.
	www.ksdot.org /burdesign/standard_notes/usstdnot.doc (13075 words)

	[No title]
		Construct falsework and work bridges to provide a minimum 20 ft-wide by 6 ft-high waterway opening.
		For downstream river traffic only, space the buoys on 25 ft centers starting from the falsework and/or bridge to at least 100 feet upstream, measured normal from the upstream structure face.
		For downstream and upstream river traffic, space the buoys on 25 ft centers starting from the falsework and/or bridge to at least 250 feet upstream and downstream, measured normal from the structure faces.
	www.mdt.mt.gov /other/bridge/external/special-provisions/Br201.24.doc (594 words)

	Fire In Falsework - Thoughts? - Firehouse Forums - Firefighting Discussion
		A good friend in another state was just telling me that he and his company were first due on fire in falsework and advanced a line underneath the slab to attack the fire.
		Oh — not to be a smart%%% - but falsework, for those explorers who might not yet know, is the system of temporary support of formwork for concrete members.
		Falsework remains in place until the concrete members have attained required strength/self supporting.
	forums.firehouse.com /showthread.php?t=72902 (1413 words)

	Title page for ETD etd-01062006-184429
		The effects of amount of the shear reinforcement, the effect of the adjacent loaded hangers and the type of hanger were investigated in the experimental investigation.
		The finite element models were generated to predict the behaviors of the falsework system such as the limit state, ultimate load, and the response of the system.
		It was recommended that the safe working load of the Dayton/Richmond and Meadow/Burke falsework hanger embedded on the NCDOT modified bulb tee (MBT) girder be reduced, and the use of different type of overhang hanger system such as through flange hanger appears to be necessary to reach the 6,000 lb.
	www.lib.ncsu.edu /theses/available/etd-01062006-184429 (518 words)

	SA-FE (Site not responding. Last check: )
		The main aim is to provide industry in general with “safer systems of work that meet the requirements of the Work at Height Regulations 2005, through the provision of those systems with published information and training”.
		SA-FE training will be developed to meet industry requirements for the application of system access and falsework.
		The founder members of the group believe there is a real need for system access and falsework training that is independent and that can be recognised nationally.
	sa-fe.org /index.htm (433 words)

	Segmental bridge - Wikipedia, the free encyclopedia
		Often this is accomplished using "slip-form" construction, where the falsework moves (slips) upward following sequential concrete "pours." The falsework uses the newly constructed concrete as the basis for moving upward.
		In cast-in-place bridges, the falsework is connected to the previously installed concrete and allowed to cantilever freely.
		Finally, the concrete is placed and cured, freeing the falsework to be moved.
	en.wikipedia.org /wiki/Segmental_bridge (548 words)

Try your search on: Qwika (all wikis)