CN205171391U - A reinforcing apparatus for improving medium and small footpath bridge bearing capacity of striding - Google Patents
A reinforcing apparatus for improving medium and small footpath bridge bearing capacity of striding Download PDFInfo
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- CN205171391U CN205171391U CN201520982891.5U CN201520982891U CN205171391U CN 205171391 U CN205171391 U CN 205171391U CN 201520982891 U CN201520982891 U CN 201520982891U CN 205171391 U CN205171391 U CN 205171391U
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Abstract
The utility model discloses a reinforcing apparatus for improving medium and small footpath bridge bearing capacity of striding, including lifting roof beam and left branch strut and right branch strut, the left branch strut articulates the upper left string depression bar in order to constitute triangular support frame including head and the tail in order, left side last quarter pull rod and left inboard depression bar, the pin joint of upper left string depression bar left end and left last quarter pull rod upper end is connected with the left side pier, the right branch strut articulates the upper right string depression bar in order to constitute triangular support frame including head and the tail in order, right side last quarter pull rod and right inboard depression bar, the pin joint of upper right string depression bar right -hand member and right last quarter pull rod upper end is connected with the right side pier, the right -hand member of upper left string depression bar and the left end of upper right string depression bar are articulated mutually, be connected through the prestress wire between inboard depression bar in a left side and the right inboard depression bar, upper left string depression bar and upper right string depression bar all with lift the roof beam and be connected. This reinforcing apparatus can be effectual applys the ascending power of lifting for the bridge, and then reaches effectual bridge and consolidate the purpose.
Description
Technical field
The utility model belongs to bridge capacity reinforcing technique field, is specifically related to a kind of bracing means for improving Short/Medium Span Bridge bearing capacity.
Background technology
Nearly decades, China has built up a large amount of bridge, and Short/Medium Span Bridge quantity is especially many, along with the growth of bridge Years Of Service, the traffic volume increases, bridge durability difference and year the reason such as aging for a long time, a large amount of bridge also exists disease, and structure or material sustain damage, and load carrying capacity of bridge reduces.Therefore, the Technology Bridge Strengthening of exploration safety, economy, science has important practical significance.
Adopt steel plate or fibre sheet material as reinforcement material to concrete beam bridge in existing highway bridge reinforcing technique, these materials strengthen mode with ordinary concrete cross section compared with there is the advantage that intensity is high, quality is light.But above-mentioned material only just being participated in when adding component generation moderate finite deformation stressed, being difficult to give full play to reinforcement material height powerful feature, wasting the bearing capacity deposit of reinforcement material, reduce consolidation effect.
Publication number is that the utility model patent of CN202899046U have employed concrete filled steel tube " splayed " end wall bracket, for existing simple bridge adds two supportings, thus make original one to become three-span continuous beam across simply supported beam, reduce the stressed of original simply supported beam span centre portion, thus improve the bearing capacity of bridge span structure.But the end wall bracket of the method is supported on bottom bridge pier, for the bridge that bridge pier is higher, the diagonal brace height of needs is also higher, more with steel material, less economical.In addition, diagonal brace is supported in bridge pier can produce a horizontal thrust to bridge pier, stressed comparatively unfavorable to bridge pier.This kind of bracing means only just plays a role when malformation, and namely during superstructure downwarp, diagonal brace just can play the supporting role to top beam body, and reinforcing efficiency is not high.
Publication number is that the utility model patent of CN204039928U provides a kind of bridge strengthening device, and be made up of strengthening mechanism and supporting mechanism, strengthening mechanism contacts with bridge superstructure, is delivered at the bottom of bridge by superstructure load by support column.For a large amount of bridge crossing over river, need in water, build support column basis, very inconvenience.For the bridge crossing over mountain valley, the too high meeting of support column increases the cost of strengthening mechanism greatly, causes economic performance to decline.
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, provides a kind of bracing means for improving Short/Medium Span Bridge bearing capacity.This bracing means simple installation, can effectively for bridge apply one upwards lift power, and then reach effective bridge strengthening object.
For achieving the above object, the technical solution adopted in the utility model is: a kind of bracing means for improving Short/Medium Span Bridge bearing capacity, it is characterized in that: comprise be arranged on bridge bottom surface lift beam and left support frame and right support frame for lifting beam described in supporting, described lift beam bearing of trend and the axis direction of described bridge perpendicular, it is hinged with the upper left string depression bar forming triangle support frame in turn that described left support frame comprises head and the tail, lower-left string pull bar and left inside side pressure bar, described upper left string depression bar left end is connected with left side bridge pier with the pin joint of string pull bar upper end, lower-left, it is hinged with the upper right string depression bar forming triangle support frame in turn that described right support frame comprises head and the tail, bottom right string pull bar and Right Inboard depression bar, described upper right string depression bar right-hand member is connected with right side bridge pier with the pin joint of string pull bar upper end, bottom right, the right-hand member of described upper left string depression bar and the left end of upper right string depression bar are hinged, be connected by prestress wire between described left inside side pressure bar and Right Inboard depression bar, describedly lift the top that beam is arranged on the pin joint of described upper left string depression bar right-hand member and upper right string depression bar left end, and described upper left string depression bar is all connected with described beam of lifting with upper right string depression bar.
Above-mentioned a kind of bracing means for improving Short/Medium Span Bridge bearing capacity, it is characterized in that: the left end of described prestress wire is connected with the pin joint of string pull bar lower end, lower-left with left inside side pressure bar lower end, and the right-hand member of described prestress wire is connected with the pin joint of string pull bar lower end, bottom right with Right Inboard depression bar lower end.
Above-mentioned a kind of bracing means for improving Short/Medium Span Bridge bearing capacity, it is characterized in that: the left end of described prestress wire is connected with the pin joint of string pull bar lower end, lower-left with left inside side pressure bar lower end by left connector, and the right-hand member of described prestress wire is connected with the pin joint of string pull bar lower end, bottom right with Right Inboard depression bar lower end by right connector.
Above-mentioned a kind of bracing means for improving Short/Medium Span Bridge bearing capacity, it is characterized in that: described left connector comprises left rectangular cylinder and is arranged on the left junction plate on described left rectangular cylinder lateral wall, the left end of described prestress wire is fixed on described left rectangular cylinder, and string pull bar lower end, described lower-left and left inside side pressure bar lower end are by being hinged through the first lower bearing pin of described left junction plate; Described right connector comprises right rectangular cylinder and is arranged on the right junction plate on described right rectangular cylinder lateral wall, the right-hand member of described prestress wire is fixed on described right rectangular cylinder, and string pull bar lower end, described bottom right and Right Inboard depression bar lower end are by being hinged through the second lower bearing pin of described right junction plate.
Above-mentioned a kind of bracing means for improving Short/Medium Span Bridge bearing capacity, is characterized in that: the left end of described upper left string depression bar is connected with left side bridge pier by left buckle with the upper end of lower-left string pull bar; The right-hand member of described upper right string depression bar is connected with right side bridge pier by right jamming button with the upper end of bottom right string pull bar.
Above-mentioned a kind of bracing means for improving Short/Medium Span Bridge bearing capacity, it is characterized in that: described left buckle comprises left level board and left vertical plate, described left level board and left vertical plate are connected to form L shaped plate, described left level board is arranged on the end face of left side bridge pier, described left vertical plate is attached on the lateral surface of left side bridge pier, described left vertical plate is provided with left otic placode, and the left end of described upper left string depression bar and the upper end of lower-left string pull bar are by being hinged through the left bearing pin of described left otic placode; Described right jamming button comprises right level board and right vertical plate, described right level board and right vertical plate are connected to form L shaped plate, described right level board is arranged on the end face of right side bridge pier, described right vertical plate is attached on the lateral surface of right side bridge pier, described right vertical plate is provided with auris dextra plate, and the right-hand member of described upper right string depression bar and the upper end of bottom right string pull bar are by being hinged through the right bearing pin of described auris dextra plate.
Above-mentioned a kind of bracing means for improving Short/Medium Span Bridge bearing capacity, is characterized in that: described left level board is provided with left stiffening rib, and described right level board is provided with right stiffening rib.
Above-mentioned a kind of bracing means for improving Short/Medium Span Bridge bearing capacity, is characterized in that: described in lift between beam and bridge and be provided with chock.
Above-mentioned a kind of bracing means for improving Short/Medium Span Bridge bearing capacity, it is characterized in that: the right-hand member of described upper left string depression bar, the upper end of left inside side pressure bar, the left end of upper right string depression bar and the upper end of Right Inboard depression bar are hinged by a upper pin, described in lift beam otic placode beam being provided with and passing for described upper pin.
Above-mentioned a kind of bracing means for improving Short/Medium Span Bridge bearing capacity, is characterized in that: the pin joint of described upper left string depression bar left end and lower-left string pull bar and the pin joint of upper right string depression bar right-hand member and bottom right string pull bar are all lower than the pin joint of described upper left string depression bar right-hand member, left inside side pressure bar upper end, upper right string depression bar left end and Right Inboard depression bar upper end.
The utility model compared with prior art has the following advantages:
1, structure of the present utility model is simple, rationally novel in design.
2, the utility model in use, when bridge is subject to live loading, the bottom downwarp of bridge, but because this bracing means is originally as stable system, the now stressed increase of prestress wire and each chord member, and one is produced to bridge upwards lift power by lifting beam, reach the reinforcement effect to bridge, this bracing means and bridge, at vertical cooperative bearing, have good consolidation effect.
3, the utility model is without thrust device, and compared with other bracing means, this bracing means can not produce horizontal thrust to existing structure, stressed more favourable to original structure.This bracing means not only can bear live loading together with original structure, and namely participates in stressed after installation is complete, assume responsibility for part dead load, improves the utilization ratio of reinforcement material.
4, this bracing means is hung on bridge pier Dun Ding by left buckle and right jamming button by the utility model, make full use of the vertical supporting effect of bridge pier, without the need to resetting support post or other support systems, save material, economic performance is good, especially favourable for the bridge or high pier bridge crossing over river.
5, of the present utility model to realize cost low, and result of use is good, is convenient to promote the use of.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the left connector of the utility model.
Fig. 3 is the top view of Fig. 2.
Fig. 4 is the structural representation of the right connector of the utility model.
Fig. 5 is the top view of Fig. 4.
Fig. 6 is the structural representation of the left buckle of the utility model.
Fig. 7 is the structural representation of the utility model right jamming button.
Description of reference numerals:
1-bridge; 2-lift beam; 3-left buckle;
3-1-left level board; 3-2-left vertical plate; 3-3-left otic placode;
3-4-left stiffening rib; 3-5-left pin shaft hole; 4-left support frame;
4-1-upper left string depression bar; 4-2-lower-left string pull bar; 4-3-left inside side pressure bar;
5-left side bridge pier; 6-left connector; 6-1-left rectangular cylinder;
6-2-left junction plate; 6-3-left steel strand hole; 6-4-the first lower bearing pin pin joint hole;
7-prestress wire; 8-right connector; 8-1-right rectangular cylinder;
8-2-right junction plate; 8-3-right steel strand hole; 8-4-the second lower bearing pin pin joint hole;
9-right support frame; 9-1-upper right string depression bar; 9-2-bottom right string pull bar;
9-3-Right Inboard depression bar; 10-right side bridge pier; 11-right jamming button;
11-1-right level board; 11-2-right vertical plate; 11-3-auris dextra plate;
11-4-right stiffening rib; 11-5-right pin shaft hole; 12-beam otic placode;
13-chock.
Detailed description of the invention
A kind of bracing means for improving Short/Medium Span Bridge bearing capacity as shown in Figure 1, comprise be arranged on bridge 1 bottom surface lift beam 2 and left support frame 4 and right support frame 9 for lifting beam 2 described in supporting, described lift beam 2 bearing of trend and the axis direction of described bridge 1 perpendicular, it is hinged with the upper left string depression bar 4-1 forming triangle support frame in turn that described left support frame 4 comprises head and the tail, lower-left string pull bar 4-2 and left inside side pressure bar 4-3, described upper left string depression bar 4-1 left end is connected with left side bridge pier 5 with the pin joint of string pull bar 4-2 upper end, lower-left, it is hinged with the upper right string depression bar 9-1 forming triangle support frame in turn that described right support frame 9 comprises head and the tail, bottom right string pull bar 9-2 and Right Inboard depression bar 9-3, described upper right string depression bar 9-1 right-hand member is connected with right side bridge pier 10 with the pin joint of string pull bar 9-2 upper end, bottom right, the right-hand member of described upper left string depression bar 4-1 and the left end of upper right string depression bar 9-1 are hinged, be connected by prestress wire 7 between described left inside side pressure bar 4-3 and Right Inboard depression bar 9-3, describedly lift the top that beam 2 is arranged on the pin joint of described upper left string depression bar 4-1 right-hand member and upper right string depression bar 9-1 left end, and described upper left string depression bar 4-1 is all connected with described beam 2 of lifting with upper right string depression bar 9-1.
In the present embodiment, this bracing means in use, the two ends of prestress wire 7 are connected with the Right Inboard depression bar 9-3 of right support frame 9 with the left inside side pressure bar 4-3 of left support frame 4 respectively, prestress wire 7 described in stretch-draw, under the effect of prestress wire 7, the left inside side pressure bar 4-3 of left support frame 4 and the equal pressurized of upper left string depression bar 4-1, lower-left string pull bar 4-2 tension, simultaneously, the Right Inboard depression bar 9-3 of right support frame 9 and the equal pressurized of upper right string depression bar 9-1, bottom right string pull bar 9-2 tension, and then make left support frame 4 and right support frame 9 hold out against bottom surface in bridge 1 by lifting beam 2.When bridge 1 is subject to live loading, the bottom downwarp of bridge 1, but because this bracing means is originally as stable system, the now stressed increase of prestress wire 7 and each chord member, and produce one upwards lift power by lifting beam 2 pairs of bridges 1, reach the reinforcement effect to bridge 1, this bracing means and bridge 1, at vertical cooperative bearing, have good consolidation effect.In addition, this bracing means is without thrust device, and compared with other bracing means, this bracing means can not produce horizontal thrust to existing structure, stressed more favourable to original structure.This bracing means not only can bear live loading together with original structure, and namely participates in stressed after installation is complete, assume responsibility for part dead load, improves the utilization ratio of reinforcement material.
As shown in Figure 1, the left end of described prestress wire 7 is connected with the pin joint of string pull bar 4-2 lower end, lower-left with left inside side pressure bar 4-3 lower end, and the right-hand member of described prestress wire 7 is connected with the pin joint of Right Inboard depression bar 9-3 lower end with string pull bar 9-2 lower end, bottom right.In the present embodiment, preferred way is, the left end of described prestress wire 7 is connected with the pin joint of string pull bar 4-2 lower end, lower-left with left inside side pressure bar 4-3 lower end by left connector 6, and the right-hand member of described prestress wire 7 is connected with the pin joint of Right Inboard depression bar 9-3 lower end with string pull bar 9-2 lower end, bottom right by right connector 8.
Composition graphs 2 and Fig. 3, described left connector 6 comprises left rectangular cylinder 6-1 and is arranged on the left junction plate 6-2 on described left rectangular cylinder 6-1 lateral wall, the left end of described prestress wire 7 is fixed on described left rectangular cylinder 6-1, and string pull bar 4-2 lower end, described lower-left and left inside side pressure bar 4-3 lower end are by being hinged through first lower bearing pin of described left junction plate 6-2; Concrete, the left end of described prestress wire 7 is connected with left rectangular cylinder 6-1 by the left steel strand hole 6-3 on left rectangular cylinder 6-1 sidewall, described left junction plate 6-2 is provided with the first lower bearing pin pin joint hole 6-4 passed for described first lower bearing pin.
Composition graphs 4 and Fig. 5, described right connector 8 comprises right rectangular cylinder 8-1 and is arranged on the right junction plate 8-2 on described right rectangular cylinder 8-1 lateral wall, the right-hand member of described prestress wire 7 is fixed on described right rectangular cylinder 8-1, and string pull bar 9-2 lower end, described bottom right and Right Inboard depression bar 9-3 lower end are by being hinged through second lower bearing pin of described right junction plate 8-2.Concrete, the right-hand member of described prestress wire 7 is connected with right rectangular cylinder 8-1 by the right steel strand hole 8-3 on right rectangular cylinder 8-1 sidewall, described right junction plate 8-2 is provided with the second lower bearing pin pin joint hole 8-4 passed for described second lower bearing pin.
As shown in Figure 1, the left end of described upper left string depression bar 4-1 is connected with left side bridge pier 5 by left buckle 3 with the upper end of lower-left string pull bar 4-2; The right-hand member of described upper right string depression bar 9-1 is connected with right side bridge pier 10 by right jamming button 11 with the upper end of bottom right string pull bar 9-2.
In the present embodiment, by left buckle 3 and right jamming button 11, this bracing means is hung on bridge pier Dun Ding, make full use of the vertical supporting effect of bridge pier, without the need to resetting support post or other support systems, save material, economic performance is good, especially favourable for the bridge or high pier bridge crossing over river.
As shown in Figure 6, described left buckle 3 comprises left level board 3-1 and left vertical plate 3-2, described left level board 3-1 and left vertical plate 3-2 is connected to form L shaped plate, described left level board 3-1 is arranged on the end face of left side bridge pier 5, described left vertical plate 3-2 is attached on the lateral surface of left side bridge pier 5, described left vertical plate 3-2 is provided with left otic placode 3-3, the left end of described upper left string depression bar 4-1 and the upper end of lower-left string pull bar 4-2, by being hinged through the left bearing pin of described left otic placode 3-3, described left otic placode 3-3 are provided with the left pin shaft hole 3-5 passed for described left bearing pin.And on described left level board 3-1, be provided with left stiffening rib 3-4.
As shown in Figure 7, described right jamming button 11 comprises right level board 11-1 and right vertical plate 11-2, described right level board 11-1 and right vertical plate 11-2 is connected to form L shaped plate, described right level board 11-1 is arranged on the end face of right side bridge pier 10, described right vertical plate 11-2 is attached on the lateral surface of right side bridge pier 10, described right vertical plate 11-2 is provided with auris dextra plate 11-3, the right-hand member of described upper right string depression bar 9-1 and the upper end of bottom right string pull bar 9-2 are by being hinged through the right bearing pin of described auris dextra plate 11-3, described auris dextra plate 11-3 is provided with the right pin shaft hole 11-5 passed for described right bearing pin.And on described right level board 11-1, be provided with right stiffening rib 11-4.
As shown in Figure 1, lift described between beam 2 and bridge 1 and be provided with chock 13.So that the power of lifting that left support frame 4 and right support frame 9 provide evenly is passed to bridge 1.
As shown in Figure 1, the right-hand member of described upper left string depression bar 4-1, the upper end of left inside side pressure bar 4-3, the left end of upper right string depression bar 9-1 and the upper end of Right Inboard depression bar 9-3 are hinged by a upper pin, described in lift the beam otic placode 12 beam 2 being provided with and passing for described upper pin.
As shown in Figure 1, the pin joint of the pin joint of described upper left string depression bar 4-1 left end and lower-left string pull bar 4-2 and upper right string depression bar 9-1 right-hand member and bottom right string pull bar 9-2 is all lower than the pin joint of described upper left string depression bar 4-1 right-hand member, left inside side pressure bar 4-3 upper end, upper right string depression bar 9-1 left end and Right Inboard depression bar 9-3 upper end.Effectively can promote left support frame 4 and right support frame 9 like this to what lift beam 2 lifts power, and then improves and lift power to bridge 1, improves the consolidation effect of bridge 1.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every above embodiment is done according to the utility model technical spirit any simple modification, change and equivalent structure transformation, all still belong in the protection domain of technical solutions of the utility model.
Claims (10)
1. one kind for improving the bracing means of Short/Medium Span Bridge bearing capacity, it is characterized in that: comprise be arranged on bridge (1) bottom surface lift beam (2) and left support frame (4) and right support frame (9) for lifting beam (2) described in supporting, described lift beam (2) bearing of trend and the axis direction of described bridge (1) perpendicular, it is hinged with upper left string depression bar (4-1) forming triangle support frame in turn that described left support frame (4) comprises head and the tail, lower-left string pull bar (4-2) and left inside side pressure bar (4-3), described upper left string depression bar (4-1) left end is connected with left side bridge pier (5) with the pin joint of lower-left string pull bar (4-2) upper end, it is hinged with the upper right string depression bar (9-1) forming triangle support frame in turn that described right support frame (9) comprises head and the tail, bottom right string pull bar (9-2) and Right Inboard depression bar (9-3), described upper right string depression bar (9-1) right-hand member is connected with right side bridge pier (10) with the pin joint of bottom right string pull bar (9-2) upper end, the right-hand member of described upper left string depression bar (4-1) and the left end of upper right string depression bar (9-1) are hinged, be connected by prestress wire (7) between described left inside side pressure bar (4-3) and Right Inboard depression bar (9-3), describedly lift the top that beam (2) is arranged on the pin joint of described upper left string depression bar (4-1) right-hand member and upper right string depression bar (9-1) left end, and described upper left string depression bar (4-1) and upper right string depression bar (9-1) are all connected with described beam (2) of lifting.
2. a kind of bracing means for improving Short/Medium Span Bridge bearing capacity according to claim 1, it is characterized in that: the left end of described prestress wire (7) is connected with the pin joint of lower-left string pull bar (4-2) lower end with left inside side pressure bar (4-3) lower end, and the right-hand member of described prestress wire (7) is connected with the pin joint of bottom right string pull bar (9-2) lower end with Right Inboard depression bar (9-3) lower end.
3. a kind of bracing means for improving Short/Medium Span Bridge bearing capacity according to claim 2, it is characterized in that: the left end of described prestress wire (7) is connected with the pin joint of lower-left string pull bar (4-2) lower end with left inside side pressure bar (4-3) lower end by left connector (6), and the right-hand member of described prestress wire (7) is connected with the pin joint of bottom right string pull bar (9-2) lower end with Right Inboard depression bar (9-3) lower end by right connector (8).
4. a kind of bracing means for improving Short/Medium Span Bridge bearing capacity according to claim 3, it is characterized in that: described left connector (6) comprises left rectangular cylinder (6-1) and is arranged on the left junction plate (6-2) on described left rectangular cylinder (6-1) lateral wall, the left end of described prestress wire (7) is fixed on described left rectangular cylinder (6-1), and string pull bar (4-2) lower end, described lower-left and left inside side pressure bar (4-3) lower end are by being hinged through the first lower bearing pin of described left junction plate (6-2); Described right connector (8) comprises right rectangular cylinder (8-1) and is arranged on the right junction plate (8-2) on described right rectangular cylinder (8-1) lateral wall, the right-hand member of described prestress wire (7) is fixed on described right rectangular cylinder (8-1), and string pull bar (9-2) lower end, described bottom right and Right Inboard depression bar (9-3) lower end are by being hinged through the second lower bearing pin of described right junction plate (8-2).
5. a kind of bracing means for improving Short/Medium Span Bridge bearing capacity according to claim 1, is characterized in that: the left end of described upper left string depression bar (4-1) is connected with left side bridge pier (5) by left buckle (3) with the upper end of lower-left string pull bar (4-2); The right-hand member of described upper right string depression bar (9-1) is connected with right side bridge pier (10) by right jamming button (11) with the upper end of bottom right string pull bar (9-2).
6. a kind of bracing means for improving Short/Medium Span Bridge bearing capacity according to claim 5, it is characterized in that: described left buckle (3) comprises left level board (3-1) and left vertical plate (3-2), described left level board (3-1) and left vertical plate (3-2) are connected to form L shaped plate, described left level board (3-1) is arranged on the end face in left side bridge pier (5), described left vertical plate (3-2) is attached on the lateral surface in left side bridge pier (5), described left vertical plate (3-2) is provided with left otic placode (3-3), the left end of described upper left string depression bar (4-1) and the upper end of lower-left string pull bar (4-2) are by being hinged through the left bearing pin of described left otic placode (3-3), described right jamming button (11) comprises right level board (11-1) and right vertical plate (11-2), described right level board (11-1) and right vertical plate (11-2) are connected to form L shaped plate, described right level board (11-1) is arranged on the end face on right side bridge pier (10), described right vertical plate (11-2) is attached on the lateral surface on right side bridge pier (10), described right vertical plate (11-2) is provided with auris dextra plate (11-3), the right-hand member of described upper right string depression bar (9-1) and the upper end of bottom right string pull bar (9-2) are by being hinged through the right bearing pin of described auris dextra plate (11-3).
7. a kind of bracing means for improving Short/Medium Span Bridge bearing capacity according to claim 6, it is characterized in that: described left level board (3-1) is provided with left stiffening rib (3-4), described right level board (11-1) is provided with right stiffening rib (11-4).
8. a kind of bracing means for improving Short/Medium Span Bridge bearing capacity according to claim 1, is characterized in that: described in lift between beam (2) and bridge (1) and be provided with chock (13).
9. a kind of bracing means for improving Short/Medium Span Bridge bearing capacity according to claim 1, it is characterized in that: the right-hand member of described upper left string depression bar (4-1), the upper end of left inside side pressure bar (4-3), the left end of upper right string depression bar (9-1) and the upper end of Right Inboard depression bar (9-3) are hinged by a upper pin, described in lift the beam otic placode (12) beam (2) being provided with and passing for described upper pin.
10. a kind of bracing means for improving Short/Medium Span Bridge bearing capacity according to claim 9, is characterized in that: the pin joint of described upper left string depression bar (4-1) left end and lower-left string pull bar (4-2) and the pin joint of upper right string depression bar (9-1) right-hand member and bottom right string pull bar (9-2) are all lower than the pin joint of described upper left string depression bar (4-1) right-hand member, left inside side pressure bar (4-3) upper end, upper right string depression bar (9-1) left end and Right Inboard depression bar (9-3) upper end.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520982891.5U CN205171391U (en) | 2015-12-01 | 2015-12-01 | A reinforcing apparatus for improving medium and small footpath bridge bearing capacity of striding |
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| CN201520982891.5U CN205171391U (en) | 2015-12-01 | 2015-12-01 | A reinforcing apparatus for improving medium and small footpath bridge bearing capacity of striding |
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| CN105956256A (en) * | 2016-04-28 | 2016-09-21 | 河海大学 | Bearing capacity assessment and reinforcement calculation method for complex region of existing concrete bridge |
| CN106677077A (en) * | 2016-12-01 | 2017-05-17 | 浙江海洋大学 | Bridge strengthening device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105956256A (en) * | 2016-04-28 | 2016-09-21 | 河海大学 | Bearing capacity assessment and reinforcement calculation method for complex region of existing concrete bridge |
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| CN106677077A (en) * | 2016-12-01 | 2017-05-17 | 浙江海洋大学 | Bridge strengthening device |
| CN106677077B (en) * | 2016-12-01 | 2018-10-16 | 浙江海洋大学 | Bridge strengthening device |
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