DE929307C - Prestressed reinforced concrete structure, in particular beam or frame bridge - Google Patents
Prestressed reinforced concrete structure, in particular beam or frame bridgeInfo
- Publication number
- DE929307C DE929307C DEH10655A DEH0010655A DE929307C DE 929307 C DE929307 C DE 929307C DE H10655 A DEH10655 A DE H10655A DE H0010655 A DEH0010655 A DE H0010655A DE 929307 C DE929307 C DE 929307C
- Authority
- DE
- Germany
- Prior art keywords
- bridge
- horizontal
- pillar
- reinforced concrete
- concrete structure
- 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
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/28—Concrete reinforced prestressed
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Description
Vorgespanntes Stahlbetontragwerk, insbesondere Balken- oder Rahmenbrücke
Fig. i zeigt eine Balkenbrücke mit in Längsrichtung horizontaler bzw. schwach geneigter Fahrbahn; Fig. 2 zeigt eine Rahmenbrücke (nur bei hohen und schlanken Pfeilern möglich), ebenfalls mit in Längsrichtung horizontaler oder schwach geneigter Fahrbahn dargestellt; Fig. 3 zeigt eine Rahmenbrücke und Fig. .4 eine Balkenbrücke mit beiderseitigem stärkerem Gefälle nach den Brückenenden zu; Fig. 5 bis 7 zeigen Einzelheiten der Auflager und Gelenke.Fig. I shows a girder bridge with horizontal or longitudinal direction. slightly inclined roadway; Fig. 2 shows a frame bridge (only with tall and slim Pillars possible), also with horizontal or slightly inclined lengthways Lane shown; Fig. 3 shows a frame bridge and Fig. 4 shows a girder bridge with a steeper slope on both sides towards the ends of the bridge; Figures 5 through 7 show Details of the supports and joints.
Bei den Ballen- bzw. Rahmenbrücken nach Fig. i ui--d 2 werden Lage und Richtung des Horizontalschubes der Dreigelenkbögen ;durch die in Fig. 5 dargestellte Anordnung der Gelenke i und der Rollenlager 2 bei A (Fig. i und -2) auf den Endpfeilern eindeutig festgelegt. Die lotrechte Komponente des Kämpferdrucks aus Eigenlast des Dreigelenkbogens ..@ 11,d durch das Rollenlager -2 in Fig. direkt in den Endpfeiler abgeleitet, «während die horizontale Komt:onente als Vorspannkraf t durch das Gelenk i in dic Balkenbrücke eingeleitet -wird und in gerader Richtung von Gelenk zu Gelenk verläuft. Der einseitige Schub aus Verkehrslast -wird bei der Balkenbrücke (Fig. i ) durch den Pfeiler 6 mit dem festen Auflager aufgenommen, -während bei der Rahmenbriicke die Auf_?alime des Schubes durch dieRahmenstieIea erfolgt. Bei der Balkenbrücke ist der Pfeiler6 mit dem festen Lager für den Angriff dieses einseitigen Schubes zu bemessen. Sollen aus architektunischen Gründen stärkere Abmessungen als bei den Pfeilern mit den Rollenlagern vermieden werden, t=ann der Pfeiler vorgespannt ---erden. Diese Vorspannung hat noch den Vorteil, daß sich die Durchdes Pfeilers verkleinert.In the case of the ball or frame bridges according to FIG. I and d 2, position and direction of the horizontal thrust of the three-hinged arches; by that shown in FIG Arrangement of the joints i and the roller bearings 2 at A (Fig. I and -2) on the end pillars clearly defined. The vertical component of the fighter pressure from the dead weight of the Three-hinge arch .. @ 11, d through the roller bearing -2 in Fig. Directly into the end pillar derived, «while the horizontal comt: onent as prestressing force through the joint i is introduced into the girder bridge and in a straight line from joint to joint runs. The one-sided thrust from the traffic load is used in the case of the girder bridge (Fig. i) taken up by the pillar 6 with the fixed support, while at the frame bridge the Auf_? alime of the thrust is carried out by the frame step. At the girder bridge is the pillar6 with the fixed bearing for the attack of this one-sided thrust to measure. Should, for architectural reasons, have stronger dimensions than the Pillars with roller bearings are avoided, t = ann the pillar pre-tensioned --- earth. This prestressing also has the advantage that the diameter of the pier is reduced.
hei der Rahmenbrücke (Fig. 3) mit beiderseitigem Gefälle nach den Brückenenden zu, -wird die eindeutige Festlegung der Lage und Richtung der Vorspannkraft durch folgende Vorkehrungen erreicht: =\ii den Endpfeilern erfolgt bei A dieselbe Anordnui_g der Gelenke i und Rollenlager 2 wie bei den Brücken nach Fig. i und -2. Zusätzlich müssen über dem Pfeiler 6 am Gefällv-echsel (Punkt C in Fig. 6) auch Rollenlager 2 und ein Gelenk i zwischen den beiden Brückenteilen angeordnet ---erden.hot the frame bridge (Fig. 3) with a slope on both sides according to the Bridge ends closed, - the clear definition of the position and direction of the prestressing force achieved by the following precautions: = \ ii the end pillars at A the same takes place The arrangement of the joints i and roller bearings 2 as in the bridges according to FIGS. I and -2. In addition, above the pillar 6 on the downhill slope (point C in Fig. 6) Roller bearing 2 and a joint i arranged between the two bridge parts --- earth.
Fig. ; zeigt die Ausbildung des Pfeilers 6 am Geiäll@rechsel, bei D, üir die Balkenbrücke nach Fig..4. Die Vorspannkraft verläuft dann in gerader Richtunvon Gelenk .-i im Endpfeiler zum Gelenk C, D ini Gefällwechsel unter der Voraussetzung, daß die Schübe der Dreigelenkbögen aus Eigenlast gleich , g ,ruß sind. Der einseitige Schub aus Verkehrslast muß bei den Rahmenbrücken (Fig. 2 und 3) durch die Rahmenstiele 4. aufgenommen werden. Bei der Balkenbrücke nach Fig. 4 wird der einseitige Schub durch den Pfeiler 6 am Gefällwechsel D aufgenommen. Die unerwünschte, nach oben gerichtete Komponente der Vorspannkraft über dem Pfeiler 6 am Gefällwechsel D bzw. C muß durch eine Verankerung in den Pfeiler aufgenommen «-erden.Fig.; shows the formation of the pillar 6 on the Geiäll @ Rechsel, at D, for the girder bridge according to Fig..4. The pretensioning force then runs in a straight direction from the joint.-I in the end pillar to the joint C, D ini slope change, provided that the thrusts of the three-hinged arches due to their own weight are equal, g, soot. The one-sided thrust from the traffic load must be absorbed by the frame posts 4 in the frame bridges (Fig. 2 and 3). In the girder bridge according to FIG. 4, the one-sided thrust is absorbed by the pillar 6 at the slope change D. The undesired, upwardly directed component of the prestressing force above the pillar 6 at the slope change D or C must be absorbed by an anchoring in the pillar.
Die Unterkante der Balken- bzw. Rahmenbrücke kann horizontal sein oder gerade bzw. parabolische Vouten aufweisen.The lower edge of the girder or frame bridge can be horizontal or have straight or parabolic coves.
Die Lage und Richtung der Vorspannkraft wird bei allen Brückentypen so gewählt, daß die günstigsten Beanspruchungen in den Balken- bzw. Rahmenbrücken entstehen. Im Gegensatz zti den mit Vorspannstählen vorgespannten Brücken müssen die vorgespannten Brücken nach der Erfindung in lotrechter und waagerechter Richtung knicksicher ausgebildet werden.The position and direction of the prestressing force is used for all bridge types chosen so that the most favorable stresses in the girder or frame bridges develop. In contrast to bridges prestressed with prestressing steels the prestressed bridges according to the invention in the vertical and horizontal directions be trained to be kink-proof.
Für die schlaffe Bewehrung kommen mit Rücksicht auf die Bruchsicherheit vorzugsweise hochwertige Stähle zur Verwendung.For the slack reinforcement come with a consideration of the break resistance preferably high quality steels for use.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH10655A DE929307C (en) | 1951-12-06 | 1951-12-06 | Prestressed reinforced concrete structure, in particular beam or frame bridge |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH10655A DE929307C (en) | 1951-12-06 | 1951-12-06 | Prestressed reinforced concrete structure, in particular beam or frame bridge |
Publications (1)
Publication Number | Publication Date |
---|---|
DE929307C true DE929307C (en) | 1955-06-23 |
Family
ID=7146497
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEH10655A Expired DE929307C (en) | 1951-12-06 | 1951-12-06 | Prestressed reinforced concrete structure, in particular beam or frame bridge |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE929307C (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE618328C (en) * | 1929-04-24 | 1935-09-11 | Andre Coyne | Support walls, dam walls, weir systems or similar structures |
DE685528C (en) * | 1938-05-26 | 1939-12-20 | Neue Baugesellschaft Wayss & F | Foundation system made up of a number of inverted barrel vaults lined up in a row |
-
1951
- 1951-12-06 DE DEH10655A patent/DE929307C/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE618328C (en) * | 1929-04-24 | 1935-09-11 | Andre Coyne | Support walls, dam walls, weir systems or similar structures |
DE685528C (en) * | 1938-05-26 | 1939-12-20 | Neue Baugesellschaft Wayss & F | Foundation system made up of a number of inverted barrel vaults lined up in a row |
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