阅读说明：本技术 一种拱桥石拱券固定结构及其施工方法 (Arch bridge stone arch coupon fixing structure and construction method thereof ) 是由 郑善义 刘佳 于 2019-09-09 设计创作，主要内容包括：本发明公开了一种拱桥石拱券固定结构,包括拱券模板,所述拱券模板上方拼接设置有若干拱券块材,每一拱券块材一侧均倾斜设置有卡扣预留孔,所述拱券块材一侧设置有钢筋砼拱圈,所述钢筋砼拱圈包括钢筋骨架和混凝土,所述钢筋骨架包括有连接介质钢筋,所述连接介质钢筋上套设有钢筋卡扣,所述钢筋卡扣呈底端一角开口的矩形结构,所述开口端的钢筋卡扣嵌入至卡扣预留孔内,所述钢筋卡扣和所述卡扣预留孔之间、相邻所述拱券块材之间均填充设置有环氧树脂层,本发明还提供了一种拱桥石拱券固定结构的施工方法,通过上述方式,本发明在保证拱桥景观效果的前提下,避免了现有技术所带来的施工操作不便,施工方式更加简单,达到的固定效果更加可靠。(The invention discloses an arch bridge stone arch coupon fixing structure, which comprises an arch coupon template, wherein a plurality of arch coupon block materials are spliced above the arch coupon template, one side of each arch coupon block material is obliquely provided with a buckle reserved hole, one side of each arch coupon block material is provided with a reinforced concrete arch ring, each reinforced concrete arch ring comprises a steel bar framework and concrete, each steel bar framework comprises a connecting medium steel bar, a steel bar buckle is sleeved on each connecting medium steel bar, each steel bar buckle is of a rectangular structure with one corner at the bottom end opened, the steel bar buckle at the opening end is embedded into the buckle reserved hole, epoxy resin layers are filled between each steel bar buckle and the buckle reserved hole and between adjacent arch coupon blocks, the invention also provides a construction method of the arch bridge stone arch coupon fixing structure, and by the mode, the invention ensures the landscape effect of an arch bridge, the construction operation inconvenience brought by the prior art is avoided, the construction mode is simpler, and the achieved fixing effect is more reliable.)

1. The utility model provides an arched bridge stone arch coupon fixed knot constructs which characterized in that: comprises an arch coupon template (1), a plurality of arch coupon block materials (2) are spliced above the arch coupon template (1), each arch coupon block material (2) is obliquely provided with a buckle reserved hole (3) in one side where the arch coupon block materials (2) are attached to each other, one side of the arch coupon block material (2) departing from the arch coupon template (1) is provided with a reinforced concrete arch ring (4), the reinforced concrete arch ring (4) comprises a reinforced concrete framework and concrete, the reinforced concrete framework comprises connecting medium steel bars (5), the connecting medium steel bars (5) are sleeved with reinforced buckles (6), the reinforced buckles (6) are of a rectangular structure with one corner open at the bottom, the reinforced buckles (6) at the open end are embedded into the corresponding buckle reserved holes (3) to be connected adjacently, the arch coupon block materials (2) and the reinforced concrete arch coupon ring (4) are arranged, a first epoxy resin layer (7) is filled between the reinforced concrete buckles (6) and the buckle reserved holes (3), and a second epoxy resin layer (8) is filled between the adjacent arch coupon blocks (2).

2. An arch bridge stone arch coupon fixing structure as claimed in claim 1, wherein: the arrangement density of the steel bar buckles (6) along the width direction of the arch coupon block (2) is 200-300 mm/piece.

3. An arch bridge stone arch coupon fixing structure as claimed in claim 2, wherein: the steel bar buckles (6) arranged at the two ends of the arch coupon block (2) in the width direction are at least 5cm away from the edge of the arch coupon block (2).

4. An arch bridge stone arch coupon fixing structure as set forth in claim 3, wherein: the diameter of each steel bar buckle (6) is 8-12 mm.

5. An arch bridge stone arch coupon fixing structure as claimed in claim 1, wherein: the distance between the connecting medium steel bar (5) and the bottom end of the reinforced concrete arch ring (4) is 40-50 mm.

6. An arch bridge stone arch coupon fixing structure as claimed in claim 1, wherein: the depth of the buckle preformed hole (3) is not more than half of the thickness of the arch coupon block (2).

7. A construction method using the arch bridge stone arch coupon fixing structure of claim 1, characterized in that the construction method comprises the following specific operation steps:

the method comprises the following steps: erecting a construction support on site and arranging an arch coupon template (1) corresponding to the shape of an arch coupon;

step two: correspondingly numbering and classifying the arch coupon blocks (2), and drilling reserved buckle holes (3) at corresponding positions of the arch coupon blocks (2);

step three: paving arch coupon blocks (2) on the arch coupon template (1) according to the serial numbers, and simultaneously embedding a steel bar buckle (6);

step four: a first epoxy resin layer (7) is filled between the steel bar buckle (6) and the arch coupon block (2), and a second epoxy resin layer (8) is filled between adjacent arch coupon blocks (2);

step five: binding and lapping a steel bar framework in a reinforced concrete arch ring (4) by using the spliced arch coupon block materials (2) as templates, wherein the process comprises the adjustment of the position of a connecting medium steel bar (5);

step six: pouring concrete for molding after the arch ring reinforcing steel frame is molded;

step seven: when the reinforced concrete arch ring (4) reaches the design strength, a stone arch coupon formed by the arch coupon blocks (2) and the reinforced concrete arch ring (4) are integrally connected and firmly fixed.

8. An arch bridge stone arch coupon fixing structure as claimed in claim 7, wherein: the arch coupon template (1) is a wood plate or a bamboo plate.

Technical Field

The invention relates to the technical field of bridge construction, in particular to an arch bridge stone arch coupon fixing structure and a construction method thereof.

Background

The arch bridge is the most common bridge type in China, has many types and large quantity, is the crown of various bridge types, not only has good bearing characteristic, but also plays the role of decoration and beautification. The arch bridge usually uses reinforced concrete arch ring as the framework of the structure stress, and in order to meet the preference of people for the natural ground gas building and increase the landscape effect of the arch bridge, the structure that stone arch coupon or decorative stone is embedded outside the reinforced concrete arch ring is usually selected.

For fixing the structure of a stone arch coupon or a facing stone, the prior art generally adopts a way of dry hanging the stone, namely: after the reinforced concrete arch ring is poured and formed and the formwork is removed, an iron piece and an expansion bolt are arranged for dry hanging and fixing the stone arch coupon, and a certain gap is reserved between the reinforced concrete arch ring and the stone arch coupon.

Although the stone arch coupon or the facing stone can be fixed in the technology, the construction surface of the iron piece is usually on the bottom surface of the reinforced concrete arch ring, is irregular and can only be performed by overhead welding or other irregular operations, and the construction difficulty is high; the driving of the expansion bolts can damage the integrity of the concrete arch ring; in addition, the difficulty of grouting between the arch ring and the gap of the stone arch coupon is high, and the filling is difficult to compact.

Disclosure of Invention

The invention mainly solves the technical problem of providing an arch bridge stone arch coupon fixing structure and a construction method thereof, which avoid the inconvenience in construction operation brought by the prior art on the premise of ensuring the landscape effect of an arch bridge, have simpler construction mode and achieve more reliable fixing effect.

In order to solve the technical problems, the invention adopts a technical scheme that: the arch bridge stone arch coupon fixing structure comprises an arch coupon template, wherein a plurality of arch coupon blocks are spliced above the arch coupon template, a buckle reserved hole is obliquely arranged in one side, which is attached to each other, of each arch coupon block, a reinforced concrete arch ring is arranged on one side of the arch coupon block material, which is far away from the arch coupon template, the reinforced concrete arch ring comprises a reinforced skeleton and concrete, the steel bar framework comprises connecting medium steel bars, steel bar buckles are sleeved on the connecting medium steel bars, the steel bar buckles are of a rectangular structure with one corner at the bottom end being opened, the steel bar buckles at the opening end are embedded into the corresponding buckle reserved holes so as to connect the adjacent arch coupon blocks and the reinforced concrete arch ring, and a first epoxy resin layer is filled between the reinforcing steel bar buckle and the buckle preformed hole, and a second epoxy resin layer is filled between the adjacent arch coupon blocks.

Preferably, the arrangement density of the steel bar buckles along the width direction of the arch coupon block is 200-300 mm/piece.

Preferably, the steel bar buckles arranged at the two ends of the arch coupon block in the width direction are at least 5cm away from the edge of the arch coupon block.

Preferably, the diameter of each steel bar buckle is 8-12 mm.

Preferably, the distance between the connecting medium steel bars and the bottom end of the reinforced concrete arch ring is 40-50 mm.

Preferably, the depth of the buckle preformed hole is not more than half of the thickness of the arch coupon block.

The invention also provides a construction method of the arch bridge stone arch coupon fixing structure, which comprises the following specific operation steps:

the method comprises the following steps: erecting a construction support on site and arranging an arch coupon template corresponding to the shape of the arch coupon;

step two: correspondingly numbering and classifying the arch coupon blocks, and drilling reserved buckle holes at corresponding positions of the arch coupon blocks;

step three: paving arch coupon blocks on the arch coupon template according to the serial numbers, and simultaneously embedding a steel bar buckle;

step four: filling a first epoxy resin layer between the steel bar buckle and the arch coupon block, and filling a second epoxy resin between adjacent arch coupon blocks;

step five: binding and lapping a steel bar framework in the reinforced concrete arch ring by using the spliced arch coupon block materials as templates, wherein the process comprises the adjustment of the position of a connecting medium steel bar;

step six: pouring concrete for molding after the arch ring reinforcing steel frame is molded;

step seven: when the reinforced concrete arch ring reaches the design strength, the stone arch coupon formed by the arch coupon blocks and the reinforced concrete arch ring are integrally connected and firmly fixed.

Preferably, the arch coupon template is a wooden plate or a bamboo plate.

The invention has the beneficial effects that:

the invention provides a fixing structure of an arch bridge stone arch coupon and a construction method thereof, which are different from the mode of the prior art, the invention adopts the mode that the arch coupon is constructed in front and the arch ring is constructed in back, and simultaneously designs a unique connecting and fixing structure, thereby avoiding the inconvenience in construction operation brought by the prior art on the premise of ensuring the landscape effect of the arch bridge; the structure and the construction mode provided by the invention are simpler, the achieved fixing effect is more reliable, and the practicability is good.

Drawings

FIG. 1 is a schematic structural view of a fixing structure for an arch bridge stone arch coupon according to the present invention;

FIG. 2 is an enlarged view of part A of FIG. 1 for showing a rebar snap;

the parts in the drawings are numbered as follows:

1. an arch coupon template; 2. an arch coupon block; 3. reserving a hole in the buckle; 4. reinforced concrete arch ring; 5. connecting medium steel bars; 6. fastening a steel bar; 7. a first epoxy resin layer; 8. a second epoxy resin layer.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.