CN104612052A - Anchor device for bridge arch rib derrick - Google Patents
Anchor device for bridge arch rib derrick Download PDFInfo
- Publication number
- CN104612052A CN104612052A CN201510057409.1A CN201510057409A CN104612052A CN 104612052 A CN104612052 A CN 104612052A CN 201510057409 A CN201510057409 A CN 201510057409A CN 104612052 A CN104612052 A CN 104612052A
- Authority
- CN
- China
- Prior art keywords
- arch rib
- anchor device
- saddle
- suspension rod
- steel pipe
- 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.)
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Classifications
-
- 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
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D4/00—Arch-type bridges
Abstract
The invention discloses an anchor device for a bridge arch rib derrick. The anchor device comprises limiting clamps clamped and fixed outside an arch rib steel pipe in a spaced mode, and each limiting clamp is formed by connecting an upper semicircular buckle plate and a lower semicircular buckle plate. A semicircular saddle is arranged at the part, between the two adjacent limiting clamps, on the top of the steel pipe, and connecting batten plates which perpendicularly extend upwards along the side edge of the semicircular saddle and limiting plates on the side edges of the limiting clamps are connected into a whole through bolts. A left groove plate and a right groove plate which are arranged in a spaced mode on the semicircular saddle in the stress direction of the derrick form an installation saddle groove for the derrick, and two rows of supporting batten plates are welded to the outer side of each of the left groove plate and the right groove plate in a balanced mode. The anchor device is simple in structure, convenient to install, low in construction difficulty and capable of shortening the construction period and improving the economic benefits. Compared with a traditional derrick anchor device, an anchoring part and an arch rib are connected only through friction, welding is not needed, and therefore the arch rib cannot be damaged by heat and does not have structural defects, and the structural strength and the construction safety of the anchor device can be ensured. Due to the fact that the anchor device can be repeatedly used after being detached, the utilization rate is high, and the construction cost is saved.
Description
Technical field
The present invention relates to highway and urban road bridge, especially relate to a kind of anchor device for bridge arch rib suspension rod.
Background technology
In recent years, along with the constantly concrete-filled steel tubes arch bridge of rise and the construction of various ways co-operative system bridge, suspension rod system, as one of bridge construction Force transmission parts, more and more comes into one's own, and the quality of its boom system also progressively becomes the important indicator evaluating bridge construction superiority.
The upper anchor type of concrete-filled steel tubes arch bridge suspension rod used is at present divided into two kinds: a kind of is directly be anchored at by suspension rod in the concrete in arch rib steel pipe, this kind of structural form causes reduction by the intensity of arch rib, cause its local strength not enough, simultaneously because of anchorage zone complex structure, cause its difficulty of construction larger, when damaging appears in the process of operation middle hanger, be difficult to change original suspension rod, cannot reinforcement be carried out to former arch rib simultaneously, another kind is straddle-type suspension rod system, weld suspension rod saddle on the steel pipe of arch rib, by hanger erection in saddle notch, the steel pipe (inner fluid concrete) riding arch rib is connected jointly stressed afterwards with bridge deck, weld seam is there is between the steel pipe of this structural form because of saddle and arch rib, fire damage can be produced to arch rib steel pipe and inner concrete in welding process, simultaneously at the scene in welding process, component precision is difficult to control, therefore construction quality is difficult to be guaranteed, as carried out strengthening of arch rib, the interim suspension rod upper end of rear dress adopts this kind of structure, its suspension rod saddle is difficult to be separated with steel pipe (interior note concrete), the aesthetic property having reinforced axle casing can be had a greatly reduced quality, and old suspension rod is not easily changed, be difficult to increase suspension rod quantity as the case may be, so this kind of boom body cording is for certain limitation.
Summary of the invention
The object of the present invention is to provide a kind of convenience, flexible, the harmless anchor device for bridge arch rib suspension rod, this anchor device can realize the harmless installation of new suspension rod, is convenient to again suspender replacement during Arch Bridges Strengthening.
For achieving the above object, the present invention can take following technical proposals:
Anchor device for bridge arch rib suspension rod of the present invention, comprise interval and fix the position limiting clamp outside arch rib steel pipe, described position limiting clamp is formed by connecting by upper and lower two semicircle buckles; Steel pipe top between adjacent two position limiting clamps is provided with semicircle saddle; The connection batten plate extended vertically upward along described semicircle saddle side and the limiting plate of described position limiting clamp side are connected as a single entity by bolt; Described semicircle saddle forms according to the spaced left and right frid of the Impact direction of suspension rod the installation saddle groove of suspension rod, and the outside equilibrium of described left and right frid is welded with two rows and supports batten plate.
Flexible liner is provided with between described position limiting clamp and outer surface of steel tube.
Described support batten plate is low inside and high outside triangle or trapezium structure.
Structural member used in the present invention such as position limiting clamp, semicircle saddle can carry out prefabricated in factory in advance, and construction and installation are carried out at the scene that is then transported to.Its erection sequence is: position limiting clamp-saddle-suspension rod, when wherein position limiting clamp is installed, by bolt, two semicircle steel buckles up and down of position limiting clamp being pressed on surface is provided with on the steel pipe of bed course, after stability under loading, with bolt, the batten plate that connects between position limiting clamp with saddle is connected, then in the saddle groove of saddle, suspension rod is installed.
Anchor structure of the present invention can not only be used for the top anchoring of arch rib suspension rod, can also be used for connection anchoring that is circular in truss and elliptic cross-section.
In actual use, the following supporting capacity of anchor device demand fulfillment of the present invention requires:
（1）
In formula (1)
for device important coefficient,
for the modular design value of action effect on device,
for dress
Put design ultimate bearing capacity.
Single unit system antiskid bearing capacity need meet the demands, and therefore in above formula, the calculating formula of each symbol is as follows:
（2）
（3）
In formula (2) (3):
---be steel pipe (concrete) axis and horizon angle
---be the friction factor between saddle steel plate and steel pipe (concrete)
---be the friction factor between position limiting clamp and steel pipe (concrete)
---for riding the suspension rod axle power of saddle
---on position limiting clamp by bolt apply perpendicular to steel pipe (concrete) surface radial load sum.
Wherein,
represent the frictional force sum between saddle and steel pipe (concrete) produced because of each suspension rod effect in this device;
represent that in this device, position limiting clamp is because existing the frictional force sum of position limiting clamp and the steel pipe (concrete) produced perpendicular to the radial load that steel pipe (concrete) is surperficial;
represent in this device because of sliding force that suspension rod produces.
Advantage of the present invention may be embodied in following several aspect:
1) compared with traditional Hanger Anchor fixing apparatus, only by frictional connection between anchoring piece and arch rib, without the need to welding, therefore the steel pipe (interior note concrete) of arch rib injures fault of construction without heat waste, can ensure its structural strength and working security.
2) structure of the present invention is simple, easy for installation, and difficulty of construction is little, the energy reduction of erection time, indirectly improves economic benefit.
3) lightweight construction of the present invention, newly-increased component can not increase former bridge burden.
4) the invention belongs to demountable structure, when reinforcing old bridge with this device, interim suspension rod can be installed as required, reinforce rear anchoring device all dismountable, not affected the aesthetic property of original bridge.
5) can Reusability after the present invention's dismounting, utilization rate is high, saves construction cost.
6) the present invention can adjust being combined to form of each parts flexibly according to construction and design scheme, increases its applicability.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2 is the profile of position limiting clamp position in Fig. 1.
Fig. 3 is the profile of location of saddle support in Fig. 1.
Fig. 4 is the structural representation of the embodiment of the present invention 2.
Fig. 5 is the structural representation of the embodiment of the present invention 3.
Detailed description of the invention
Below by several specific embodiment, detailed further describing is done to the present invention.
embodiment 1
As Figure 1-3, the anchor device for bridge arch rib suspension rod of the present invention, comprises interval and fixes concreting in arch rib steel pipe 1(steel pipe 1) outer position limiting clamp 2, position limiting clamp 2 is bolted by upper and lower two semicircle buckles and forms; Steel pipe top between adjacent two position limiting clamps 2 is provided with semicircle saddle 3; The connection batten plate 4 extended vertically upward along semicircle saddle side is connected as a single entity by bolt 6 with the limiting plate 5 of position limiting clamp side; Semicircle saddle 3 forms according to the spaced left and right frid 7,8 of the Impact direction of suspension rod the installation saddle groove of suspension rod, suspension rod 11 straddles in saddle groove, be connected with bridge deck to downward-extension, outside the bottom of left and right frid 7,8, skim formation horn mouth, Wear suspension rod 11; Generally, supporting batten plate 9 is low inside and high outside triangle or trapezium structure, longitudinal edge and left frid or right frid weld together, horizontal sides and saddle 3 weld together, in order to carry out the sliding force put more energy into and bear suspension rod generation in local to saddle, simultaneously in order to strengthen left and right frid 7,8 local stiffness, and the sliding force that suspension rod produces evenly is passed on saddle 3.For ensureing the connectivity robustness between position limiting clamp 2 and steel pipe 1, between position limiting clamp 2 and steel pipe 1 external surface, be provided with flexible liner 10.
Fig. 1 is single hanging rod structure, and the installation site of suspension rod 11 is positioned at the left side of arch rib, and according to the Impact direction of suspension rod 11, left frid 7 greatly stressed, so the support batten plate 9 of welding will be longer than the support batten plate of welding outside right frid 8 outside left frid 7; If the installation site of suspension rod is positioned at the top of arch rib, then the Impact direction of suspension rod 11 vertically downward, and the left and right frid 7,8 at this moment clamping suspension rod 11 is longitudinally vertical setting, and support batten plate 9 length of both sides is identical; If the installation site of suspension rod 11 is positioned at the right side of arch rib, then right frid 7 is greatly stressed, so the support batten plate 9 of welding will be longer than the support batten plate of welding outside left frid 8 outside right frid 8.
embodiment 2
Fig. 4 is two hanging rod structures, employs three position limiting clamps 2, installs a semicircle saddle 3, two suspension rods 11 respectively and be arranged on respectively in the saddle groove of two semicircle saddles 3 between adjacent two position limiting clamps.This kind of structure is applicable to two suspension rod design scheme, or newly adds suspension rod and former boom location and have when conflicting, and needs the situation installing new suspension rod in former suspension rod both sides additional.
embodiment 3
Fig. 5 is two hanging rod structures of another kind of form, employ two position limiting clamps 2, between adjacent two position limiting clamps, side by side two semicircle saddles 3 are installed, connection batten plate 4 between the circular saddle 3 of adjacent two halves is connected by bolt, and two suspension rods 11 are arranged in the saddle groove of two semicircle saddles 3 respectively.This kind of structure is applicable to two suspension rod design scheme, or newly adds suspension rod and have to conflict and cannot install realizing middle limiting with former boom location and press from both sides, and needs the situation installing new suspension rod in former suspension rod both sides additional.
Claims (3)
1. for an anchor device for bridge arch rib suspension rod, it is characterized in that: comprise interval and fix at arch rib steel pipe (1) position limiting clamp outward (2), described position limiting clamp (2) is formed by connecting by upper and lower two semicircle buckles; Steel pipe top between adjacent two position limiting clamps (2) is provided with semicircle saddle (3); The connection batten plate (4) extended vertically upward along described semicircle saddle side is connected as a single entity by bolt (6) with the limiting plate (5) of described position limiting clamp side; Described semicircle saddle (3) forms according to the spaced left and right frid of the Impact direction of suspension rod (7,8) the installation saddle groove of suspension rod, and the outside equilibrium of described left and right frid (7,8) is welded with two rows and supports batten plate (9).
2. the anchor device for bridge arch rib suspension rod according to claim 1, is characterized in that: be provided with flexible liner (10) between described position limiting clamp (2) and steel pipe (1) external surface.
3. the anchor device for bridge arch rib suspension rod according to claim 1, is characterized in that: described support batten plate (9) is low inside and high outside triangle or trapezium structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510057409.1A CN104612052B (en) | 2015-02-04 | 2015-02-04 | For the anchor device of bridge arch rib suspension rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510057409.1A CN104612052B (en) | 2015-02-04 | 2015-02-04 | For the anchor device of bridge arch rib suspension rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104612052A true CN104612052A (en) | 2015-05-13 |
| CN104612052B CN104612052B (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510057409.1A Active CN104612052B (en) | 2015-02-04 | 2015-02-04 | For the anchor device of bridge arch rib suspension rod |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MXPA02001039A (en) * | 2001-01-29 | 2004-04-21 | Vsl Int Ag | Device for anchoring one end of a stay to a base. |
| ES2265626T3 (en) * | 2003-09-03 | 2007-02-16 | Freyssinet | DEVICE FOR THE AMORTIGUATION OF VIBRATIONS IN A CABLE AND AMORTIGUATION PROCEDURE ASSOCIATED WITH THE SAME. |
| CN103046466A (en) * | 2012-12-29 | 2013-04-17 | 广东省公路勘察规划设计院股份有限公司 | Detectable, replaceable and adjustable arch bridge suspender system and method for constructing same |
| CN202936720U (en) * | 2012-08-10 | 2013-05-15 | 柳州欧维姆机械股份有限公司 | Arch bridge suspension rod assembly convenient to replace |
| CN103485285A (en) * | 2013-08-30 | 2014-01-01 | 河南省交通科学技术研究院有限公司 | Replacement method of rigid hanger of tied-arch bridge |
| CN103643634A (en) * | 2013-12-25 | 2014-03-19 | 招商局重庆交通科研设计院有限公司 | Anchoring structure for arch spring of concrete-filled steel tube arch bridge |
| CN204530476U (en) * | 2015-02-04 | 2015-08-05 | 河南省交通规划勘察设计院有限责任公司 | For the anchor device of bridge arch rib suspension rod |
-
2015
- 2015-02-04 CN CN201510057409.1A patent/CN104612052B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MXPA02001039A (en) * | 2001-01-29 | 2004-04-21 | Vsl Int Ag | Device for anchoring one end of a stay to a base. |
| ES2265626T3 (en) * | 2003-09-03 | 2007-02-16 | Freyssinet | DEVICE FOR THE AMORTIGUATION OF VIBRATIONS IN A CABLE AND AMORTIGUATION PROCEDURE ASSOCIATED WITH THE SAME. |
| CN202936720U (en) * | 2012-08-10 | 2013-05-15 | 柳州欧维姆机械股份有限公司 | Arch bridge suspension rod assembly convenient to replace |
| CN103046466A (en) * | 2012-12-29 | 2013-04-17 | 广东省公路勘察规划设计院股份有限公司 | Detectable, replaceable and adjustable arch bridge suspender system and method for constructing same |
| CN103485285A (en) * | 2013-08-30 | 2014-01-01 | 河南省交通科学技术研究院有限公司 | Replacement method of rigid hanger of tied-arch bridge |
| CN103643634A (en) * | 2013-12-25 | 2014-03-19 | 招商局重庆交通科研设计院有限公司 | Anchoring structure for arch spring of concrete-filled steel tube arch bridge |
| CN204530476U (en) * | 2015-02-04 | 2015-08-05 | 河南省交通规划勘察设计院有限责任公司 | For the anchor device of bridge arch rib suspension rod |
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| Publication number | Publication date |
|---|---|
| CN104612052B (en) | 2016-03-30 |
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Address after: Longhai Road 450052 Henan city of Zhengzhou province No. 70 Applicant after: HENAN PROVINCIAL COMMUNICATIONS PLANNING & DESIGN INSTITUTE CO., LTD. Address before: Longhai Road 27 450052 area in Henan city of Zhengzhou province No. 70 Applicant before: Henan Communications Planning Surver & Designing Institute Co., Ltd. |
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