阅读说明：本技术 一种胶轮有轨电车双h型混凝土轨道梁及其施工方法 (double-H-shaped concrete track beam of rubber-tyred tramcar and construction method thereof ) 是由 林韬 张立江 韩龙 邓良强 李晓东 李泽龙 郑旺 于 2020-04-30 设计创作，主要内容包括：本发明公开了一种胶轮有轨电车双H型混凝土轨道梁及其施工方法,设置于桥墩上,包括若干个导轨梁跨段,相邻两个导轨梁跨段之间链接连接；导轨梁跨段包括4个腹板、2个底板和横隔板；4个腹板与2个底板组合成双“H”型结构,通过横隔板连接组合成一体结构；每个腹板设置为横截面为“I”形结构,且每个腹板顶端以及其顶部一侧端均设置有预埋耐磨钢板；横隔板位于底板下方,且横隔板包括2个端横隔板和若干个中横隔板；两个端横隔板位于导轨梁跨段两端,若干个中横隔板按次序排列设置。与目前存在的钢导轨梁对比,双H型混凝土轨道梁整体刚度大,行车舒适性好,噪音小,混凝土结构耐久性好,后期维护量小。(The invention discloses a double H-shaped concrete track beam of a rubber-tyred tramcar and a construction method thereof, wherein the double H-shaped concrete track beam is arranged on a pier and comprises a plurality of guide rail beam spans, and every two adjacent guide rail beam spans are connected in a linking manner; the guide rail beam span section comprises 4 webs, 2 bottom plates and diaphragm plates; the 4 webs and the 2 bottom plates are combined into a double H-shaped structure and are connected and combined into an integral structure through a transverse partition plate; each web is of an I-shaped cross section, and the top end and one side end of the top of each web are provided with embedded wear-resistant steel plates; the diaphragm plates are positioned below the bottom plate and comprise 2 end diaphragm plates and a plurality of middle diaphragm plates; two end diaphragm plates are positioned at two ends of the span section of the guide rail beam, and a plurality of middle diaphragm plates are arranged in sequence. Compared with the existing steel guide rail beam, the double-H type concrete rail beam has the advantages of large overall rigidity, good driving comfort, low noise, good concrete structure durability and small later maintenance amount.)

1. A double-H-shaped concrete track beam of a rubber-tyred tramcar is arranged on a pier and is characterized by comprising a plurality of guide rail beam spans, wherein two adjacent guide rail beam spans are connected in a linking manner;

the guide rail beam span section comprises 4 webs (1), 2 bottom plates (2) and diaphragm plates (3); the 4 web plates (1) and the 2 bottom plates (2) are combined into a double H-shaped structure, and then are connected and combined into an integral structure through the transverse partition plate (3);

each web plate (1) is of an I-shaped cross section, and the top end and one side end of the top of each web plate are provided with embedded wear-resistant steel plates (4);

the diaphragm plates (3) are positioned below the bottom plate (2), and the diaphragm plates (3) comprise 2 end diaphragm plates (31) and a plurality of middle diaphragm plates (32); the two end diaphragm plates (31) are positioned at two ends of the span section of the guide rail beam, and the plurality of middle diaphragm plates (32) are arranged in sequence.

2. The double H-shaped concrete track beam for the rubber-tyred tram according to claim 1, characterized in that the bottom plate (2) is arranged at a position with the top surface below 60cm of the top surface of the web (1), and forms an open trough structure (5) with two adjacent webs (1).

3. The double H-shaped concrete track beam for the rubber-tyred tram according to claim 1, characterized in that each end diaphragm (31) is provided with one or more linking holes (311), and the end diaphragms (31) of two adjacent track beam spans are linked and connected through the linking holes (311) by a connecting piece.

4. The double H-shaped concrete track beam for the rubber-tyred tram according to claim 3, wherein each end diaphragm (32) is correspondingly arranged on the top end of the pier; and a plurality of middle diaphragm plates (32) are arranged one at each interval of 6-8 m along the span direction of the guide rail beam and are arranged between two end diaphragm plates (31) of the span of the guide rail beam.

5. The double H-shaped concrete track beam for the rubber-tyred tram according to claim 1, characterized in that it further comprises a cable channel (6), wherein the cable channel (6) is arranged at the bottom of the two sides of the open groove structure (4).

6. The double H-shaped concrete track beam for the rubber-tyred tram according to claim 1, wherein the linear shape of the span of the track beam is linear or/and curved.

7. The double H-shaped concrete track beam for the rubber-tyred tram according to any one of claims 1 to 6, characterized in that two end diaphragms (31) and a plurality of middle diaphragms (32) are all of a one-piece plate structure;

or each end diaphragm plate (31) is divided into two equal end diaphragm plate embedded steel plates; a cast-in-place wet joint (312) is arranged at the joint of the two prefabricated end diaphragm plates; correspondingly, each middle diaphragm plate (32) is also divided into two equal middle diaphragm plate embedded steel plates, and a reserved bolt hole (321) and a middle diaphragm plate connecting steel plate (7) are arranged at the joint of the two prefabricated middle diaphragm plates.

8. A construction method of a double-H-shaped concrete track beam of a rubber-tyred tramcar is characterized in that the double-H-shaped concrete track beam of the rubber-tyred tramcar is cast in situ by adopting an on-site bracket; or adopting single H track beam centralized prefabrication and hoisting construction.

9. The construction method of the double H-shaped concrete track beam of the rubber-tyred tramcar according to claim 8, characterized in that when the centralized prefabrication and hoisting construction is adopted, the end diaphragms (31) at the tops of the piers are connected through cast-in-place wet joints (312), after the prefabricated members are hoisted in place, the middle diaphragms (32) firstly weld and fix the corresponding parts of the embedded steel plates of the two middle diaphragms, and then bolt and connect the embedded steel plates of the two middle diaphragms through connecting pieces passing through the reserved bolt holes (321).

Technical Field

The invention relates to the technical field of civil engineering, in particular to a double H-shaped concrete track beam of a rubber-tyred tramcar and a construction method thereof.

Background

The Yunba is a guide rail type rubber wheel tramcar, the transport capacity of the Yunba is 0.6-1.0 ten thousand times per hour, the system is a small-transport-capacity rubber wheel tramcar system, and the system is a new system in modern tramcars. The method can improve the public transportation level, supplement product blank, is dedicated to constructing a multi-level public transportation network, and is planned into middle and small city traffic trunk lines and large and medium city traffic branch lines in large quantities in recent years. At present, the first Yunba line is being developed and constructed in Chongqing hills, and the project uses Biedi steel guide rail beams.

As a new thing in recent years, there are two main types of beam shapes used in some previous projects of the clouds. The first is a steel guide rail beam from byedi corporation and the second is to provide a steel guide rail on the top surface of a conventional concrete box girder. Although the steel guide rail beam released by Biandy company has light weight, the steel guide rail beam has the characteristics of small rigidity, poor driving comfort, relatively large noise, high manufacturing cost, large later maintenance amount and the like. Increase the maintenance that steel guide rail can be convenient for the structure at conventional concrete box beam top, but the structure is from great, the cost is high, the construction convenience is poor, the roof beam sets up the steel guide rail roof beam alone than extravagant.

Therefore, the technical personnel in the field need to solve the problem of how to provide the double-H type concrete track beam of the rubber-tyred tramcar, which has the advantages of large overall rigidity of the track beam, good driving comfort, low noise, good durability of a concrete structure and small later maintenance amount.

Disclosure of Invention

In view of the above, the invention provides a double-H-shaped concrete track beam of a rubber-tyred tramcar and a construction method thereof.

In order to solve the technical problems, the invention adopts the following technical scheme:

a double-H-shaped concrete track beam of a rubber-tyred tramcar is arranged on a pier and comprises a plurality of guide rail beam spans, wherein two adjacent guide rail beam spans are connected in a linking manner; the guide rail beam span section comprises 4 webs, 2 bottom plates and diaphragm plates; the 4 web plates and the 2 bottom plates are combined into a double H-shaped structure, and then are connected and combined into an integral structure through the diaphragm plates;

each web is of an I-shaped cross section, and the top end and one side end of the top of each web are provided with embedded wear-resistant steel plates;

the diaphragm plates are positioned below the bottom plate and comprise 2 end diaphragm plates and a plurality of middle diaphragm plates; the two end diaphragm plates are positioned at two ends of the span section of the guide rail beam, and the plurality of middle diaphragm plates are arranged in sequence.

Preferably, the bottom plate is arranged at a position, the top surface of the bottom plate is located below 60cm of the top surface of the web plate, and an open groove structure is formed between the bottom plate and two adjacent web plates.

The effective effects of the scheme are as follows: the functions of maintenance and emergency passage are achieved, and the overall rigidity of the track beam is increased.

Preferably, each end diaphragm plate is provided with one or more linking holes, and the end diaphragm plates of two adjacent guide rail beam span sections are connected in a linking manner by penetrating through the linking holes through connecting pieces.

Preferably, each end diaphragm plate is correspondingly arranged at the top end of the pier; and the middle diaphragm plates are arranged one at each interval of 6-8 m along the span direction of the guide rail beam and are arranged between the two end diaphragm plates of the span of the guide rail beam.

Preferably, the double-H-shaped concrete track beam of the rubber-tyred tramcar further comprises a cable channel, and the cable channel is arranged at the bottoms of the two sides of the open groove body structure.

Preferably, the linear shape of the track beam span is arranged in a linear shape or/and a curved shape.

Preferably, the two end diaphragm plates and the plurality of middle diaphragm plates are all of an integral plate structure;

or each end diaphragm plate is divided into two equal end diaphragm plate embedded steel plates; a cast-in-place wet joint is arranged at the joint of the two prefabricated end diaphragm plates; correspondingly, each middle diaphragm plate is also divided into two equal middle diaphragm plate embedded steel plates, and a reserved bolt hole and a middle diaphragm plate connecting steel plate are arranged at the joint of the two prefabricated middle diaphragm plates.

Preferably, the web plate of the simply supported beam structure adopts an equal-height I-shaped cross section, and the web plate of the large-span continuous beam structure adopts a variable-height I-shaped web plate.

Preferably, the track beam with the span of more than or equal to 16 meters is of a prestressed concrete structure, and the track beam with the span of less than 16 meters is of a common reinforced concrete structure.

The invention also discloses a construction method of the double H-shaped concrete track beam of the rubber-tyred tramcar, which specifically comprises the following steps: the double H-shaped concrete track beam of the rubber-tyred tramcar is cast in situ by adopting an on-site bracket; or adopting single H track beam centralized prefabrication and hoisting construction.

Preferably, when the centralized prefabrication and hoisting construction is adopted, the end diaphragm plates at the top of the bridge pier are connected through cast-in-place wet seams, after the prefabricated member is hoisted in place, the corresponding parts of the pre-buried steel plates of the middle diaphragm plates are firstly welded and fixed, and then the middle diaphragm plates penetrate through the reserved bolt holes through connecting pieces to connect the two pre-buried steel plates of the middle diaphragm plates in a bolted mode.

Compared with the prior art, the invention has the following technical effects:

the invention uses a rubber wheel tramcar double H-shaped concrete track beam which is composed of 4 webs, 2 bottom plates and a plurality of transverse clapboards, compared with the existing scheme that a steel guide rail is arranged on the top of a concrete box beam. Each web plate top directly acts on one row of wheels, and the stress is direct and definite; the web plates are all in I-shaped section structures, so that the good compression performance of concrete can be fully exerted; the transverse through-length bottom plate is eliminated, a bottom plate with the top surface positioned 60cm below the top surface of the web plate is arranged instead, the bottom plate is a stressed member, the whole rigidity of the track beam is increased, the bottom plate is used as an overhaul and emergency channel, the consumption of concrete is reduced by 20% -40% compared with that of a box beam, a steel guide rail beam at the top of the box beam is eliminated, and the consumption of steel is reduced; through the end diaphragm plate that sets up pier top, set up one well diaphragm plate along every 6 ~ 8m of track roof beam direction interval, strengthened the rigidity of two H type concrete track roof beams. Compared with the existing steel guide rail beam, the double-H type concrete rail beam has the advantages of large overall rigidity, good driving comfort, low noise, good concrete structure durability and small later maintenance amount.

Drawings

FIG. 1 is an isometric view of a double H-shaped concrete track beam of the rubber-tyred tramcar;

FIG. 2 is a sectional view of an equal-height end part of a double H-shaped concrete track beam of the rubber-tyred tramcar;

FIG. 3 is a sectional view of a prefabricated assembled equal-height double H-shaped concrete track beam (middle diaphragm plate part) of the double H-shaped concrete track beam of the rubber-tyred tramcar;

FIG. 4 is a cross-sectional view of a prefabricated middle diaphragm plate in the prefabricated assembled equal-height double-H type concrete track beam of the rubber-tyred tramcar;

FIG. 5 is a sectional view of a prefabricated assembled equal-height double H-shaped concrete track beam (end transverse partition plate part) of the equal-height double H-shaped concrete track beam of the rubber-tyred tramcar;

FIG. 6 is a middle section view of an equal-height double-H type concrete track beam of the rubber-tyred tramcar;

FIG. 7 is a plan view of 1/2 double H-shaped concrete track beam;

FIG. 8 is an elevation view of an 1/2 equal height double H-shaped concrete track beam;

fig. 9 is an elevation view of 1/2 variable height double H-shaped concrete track beam.

In the figure: 1. a web; 2. a base plate; 3. a diaphragm plate; 31. a transverse end diaphragm; 311. a link hole; 312. casting a wet joint in situ; 32. a middle diaphragm plate; 321. bolt holes; 4. pre-burying a wear-resistant steel plate; 5. an open tank structure; 6. a cable channel; 7. the middle diaphragm plate is connected with a steel plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.