A combined prestressed steel transverse beam, reinforcement system and reinforcement method thereof
A prestressed steel, combined technology, applied in bridge reinforcement, bridge, bridge maintenance, etc., can solve the problems of poor reinforcement effect, poor integrity, high cost, etc., to improve the overall work performance, reduce construction difficulty, integrity Good results
Active Publication Date: 2017-07-04
BEIJING MUNICIPAL ENG RES INST +1
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[0008] The purpose of the present invention is to provide a combined prestressed steel transverse beam, reinforcement system and reinforcement method, to solve the technical problems of poor reinforcement effect, poor integrity and high cost in the existing bridge body reinforcement system
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[0052] Examples see figure 2 , image 3 As shown, this combined prestressed steel transverse beam includes hinged supports, first beams 5, middle beams 6, second beams 8 and hinged supports connected in sequence in the horizontal direction; where the first beam 5 The ends of the front end and the second crossbeam 8 are hingedly connected with the hinged support respectively; the ends of the first crossbeam 5 and the front ends of the second crossbeam 8 are respectively sleeved on the two ends of the middle crossbeam 6; the ends of the first crossbeam 5 are also connected There is a prestress loading mechanism 7, and the prestress loading mechanism 7 is located inside the middle beam 6.
[0053] see Figure 4 As shown, the hinged support includes an inner steel cylinder 10 and an outer steel cylinder 11 sleeved on the outside of the inner steel cylinder 10, and the two are flexibly connected; wherein the cross section of the inner steel cylinder 10 is circular, and the outer...
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The invention provides a combined type pre-stress steel cross diaphragm beam, a reinforcing system and a reinforcing method thereof. The combined type pre-stress steel cross diaphragm beam comprises a first cross beam, a middle cross beam and a second cross beam which are connected in sequence in the horizontal direction; the tail end of the first cross beam and the front end of the second cross beam are in sleeving joint with the two ends of the middle cross beam; the tail end of the first cross beam is further connected with a pre-stress loading mechanism; the pre-stress loading mechanism is located in the middle cross beam; the reinforcing system can be used for effectively solving the problem that side faces of adjacent main girder webs are not smooth; the integrity of an old bridge and a newly arranged reinforcing structure is better, the whole performance is improved and the reinforcing quality is guaranteed; the pre-stress loading mechanism is arranged and the cross diaphragm beam is actively cooperated with a whole bridge to work when compared with previous passive stressing, so that the whole working performance of the bridge is improved; meanwhile, the construction difficulty can also be reduced and the working efficiency is improved. The combined type pre-stress steel cross diaphragm beam can be widely applied to old bridge reinforcing construction of an assembling type simply supported bridge or reinforcing construction of other similar bridge structures.
Description
technical field [0001] The invention relates to the field of old bridge reinforcement engineering, in particular to a combined prestressed steel transverse beam reinforcement system and a reinforcement method thereof. Background technique [0002] Most of the bridges in active service in our country were built after the founding of the People's Republic of my country. With the increase of the service life, the bearing capacity of the bridges decreases year by year. Especially the bridges built before have different design standards, and the bearing capacity can no longer meet the needs of traffic development. Moreover, with the increase of the service life of the bridge, a series of problems such as carbonization of the concrete surface, enlarged cracks, surface damage, rainwater intrusion, and corrosion of steel bars will naturally appear, which will eventually lead to a decrease in the bearing capacity of the bridge and disease, becoming a sick bridge. Dangerous bridges, s...
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IPC IPC(8): E01D22/00
CPCE01D22/00
Inventor 王光明王灏姚嘉乔捷段文志皮海涛徐万林叶小雷赵灵霞胡月
Owner BEIJING MUNICIPAL ENG RES INST