Structure of abutment rigid frame bridge retaining wall and construction method thereof
阅读说明：本技术 桥台刚构桥挡墙的构造及其施工方法 (Structure of abutment rigid frame bridge retaining wall and construction method thereof ) 是由 黄福云 单玉麟 何凌峰 张峰 周志明 于 2019-10-29 设计创作，主要内容包括：本发明涉及一种桥台刚构桥挡墙构造及其施工方法,其特征在于：挡墙位于次桥台纵桥向方向的两侧,所述的主次桥台之间的挡墙仅与次桥台和另一块挡墙整体浇筑,且与主桥台和引梁均断开,其中在与主桥台之间填充轻质材料以适应温度和地震作用的需要,且主桥台与轻质材料之间设置滑移层。所述的轻质材料为EPS、橡胶等。另外,所述的位于次桥台后的挡墙②也均与搭板断开,同时在挡墙的顶部设置滑移层。所述滑移层为橡胶或油毛毡,待主桥台施工完成后,进行次桥台和挡墙的配筋和浇筑,随后进行台后填土,同时将引梁和主桥台整体浇筑。该发明可明显节约土地、改善交通压力以及避免传统桥梁的问题,本发明设计合理,构造简单,施工方便,对于城市的整体规划有这重要作用。(The invention relates to a bridge abutment rigid frame bridge retaining wall structure and a construction method thereof, which are characterized in that: the barricade is located the both sides of secondary abutment longitudinal bridge to the direction, the barricade between the major-minor abutment only with secondary abutment and another barricade monolithic casting, and all break off with main abutment and straining beam, wherein with main abutment between pack the needs of light material in order to adapt to temperature and seismic action, and set up the sliding layer between main abutment and the light material. The light material is EPS, rubber and the like. In addition, the retaining wall behind the secondary abutment is also disconnected with the butt strap, and a sliding layer is arranged at the top of the retaining wall. The sliding layer is made of rubber or felt, after the construction of the main bridge abutment is completed, reinforcement and pouring of the secondary bridge abutment and the retaining wall are carried out, filling is carried out after the abutment, and meanwhile, the guide beam and the main bridge abutment are integrally poured. The invention can obviously save land, improve traffic pressure and avoid the problem of the traditional bridge, has reasonable design, simple structure and convenient construction, and plays an important role in the overall planning of cities.)
1. The utility model provides a bridge platform rigid frame bridge barricade structure which characterized in that: including girder, draw beam and establish the main abutment that is close to draw beam tip below at the girder, the side of drawing beam is equipped with rather than having gapped butt strap, the expansion joint department below of drawing beam and butt strap is equipped with the secondary abutment, at the both sides of secondary abutment side integral casting have with draw beam, butt strap disconnection's first barricade and second barricade, it has the light material layer to fill between first barricade and the main abutment.
2. The abutment rigid frame bridge retaining wall structure according to claim 1, wherein: and a bearing platform and a pile foundation are arranged below the main bridge platform.
3. The abutment rigid frame bridge retaining wall structure according to claim 1, wherein: a first sliding layer is arranged between the light material layer and the main bridge abutment.
4. The abutment rigid frame bridge retaining wall structure according to claim 3, wherein: and a second sliding layer is arranged between the light material layer and the guide beam as well as between the first retaining wall and the guide beam.
5. The abutment rigid frame bridge retaining wall structure according to claim 4, wherein: and a third sliding layer is arranged between the second retaining wall and the second abutment and between the second retaining wall and the butt strap.
6. The abutment rigid frame bridge retaining wall structure according to claim 1, wherein: the top surfaces of the first retaining wall and the secondary bridge abutment are shorter than the top surface of the second retaining wall, and the widths of the first retaining wall and the second retaining wall are narrower than the width of the secondary bridge abutment.
7. The abutment rigid frame bridge retaining wall structure according to claim 1, wherein: the shape of first barricade and second barricade is right trapezoid, and last base, the lower base of first barricade link up with light material layer, inferior abutment side respectively, and the introduction beam is supported to the right angle side of first barricade, and the below is located to the hypotenuse of first barricade, and last base, the lower base of second barricade link up with inferior abutment, back retaining soil side respectively, and the right angle side of second barricade supports the attachment strap, and the below is located to the hypotenuse of second barricade.
8. The abutment rigid frame bridge retaining wall structure according to claim 1, wherein: the light material layer is made of EPS or rubber materials.
9. The abutment rigid frame bridge retaining wall structure according to claim 5, wherein: the sliding layer is made of rubber or felt material.
10. A construction method of a retaining wall structure of a bridge abutment rigid frame bridge comprises a main beam, a guide beam and a main bridge abutment arranged below the end part of the main beam close to the guide beam, wherein a butt strap with a gap is arranged beside the guide beam, a secondary bridge abutment is arranged below a dilatation joint of the guide beam and the butt strap, a first retaining wall and a second retaining wall disconnected with the guide beam and the butt strap are integrally cast at two sides of the secondary bridge abutment, and a light material layer is filled between the first retaining wall and the main bridge abutment; the construction method comprises the following steps: (1) after the construction of the pile foundation, the bearing platform and the main bridge abutment is finished; (2) filling soil behind the bearing platform; (3) reinforcing and pouring the secondary abutment and the first and second retaining walls; (4) filling a light material layer in front of the first retaining wall and the main bridge abutment, and arranging a first sliding layer between the light material layer and the main bridge abutment; (5) a third sliding layer is arranged between the butt strap and the second retaining wall; (6) a second sliding layer is arranged between the contact surface of the first retaining wall and the guide beam; (7) and integrally pouring the guide beam and the main bridge abutment.
The technical field is as follows:
the invention relates to a bridge retaining wall structure with a rigid bridge abutment and a construction method thereof, belonging to the field of bridge engineering.
Background art:
with the development of economy in China, the living standard of people is continuously improved, vehicles are increased, and the number of bridges in cities is continuously increased. However, the conventional bridge has problems of traffic jam and increased maintenance cost due to the damage of the expansion device, vehicle jump at the bridge head and the like. Therefore in order to solve the phenomenon, the seamless bridge is suitable for transportation, in addition, the abutment rigid frame bridge can better absorb temperature change and earthquake action, and great inconvenience is brought to life of people in order to avoid damage of the bridge, so that the abutment rigid frame bridge is preferentially selected in a city, but both sides of a main abutment and two sides of a secondary abutment of the abutment rigid frame bridge are respectively provided with a 45-degree protection slope, and great inconvenience is brought to overall city planning and traveling of people.
The invention content is as follows:
the technical problem to be solved by the invention is as follows: the abutment rigid frame bridge retaining wall structure can save land, facilitate people to go out and is beneficial to relieving traffic pressure.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention discloses a bridge abutment rigid frame bridge retaining wall structure, which is characterized in that: including girder, draw beam and establish the main abutment that is close to draw beam tip below at the girder, the side of drawing beam is equipped with rather than having gapped butt strap, the expansion joint department below of drawing beam and butt strap is equipped with the secondary abutment, at the both sides of secondary abutment side integral casting have with draw beam, butt strap disconnection's first barricade and second barricade, it has the light material layer to fill between first barricade and the main abutment.
Further, a bearing platform and a pile foundation are arranged below the main bridge platform.
Furthermore, a first sliding layer is arranged between the light material layer and the main bridge abutment.
Furthermore, a second sliding layer is arranged between the light material layer and the guide beam and between the first retaining wall and the guide beam.
Furthermore, a third sliding layer is arranged between the second retaining wall and the second abutment as well as between the second retaining wall and the butt strap.
Furthermore, the top surfaces of the first retaining wall and the secondary bridge abutment are shorter than the top surface of the second retaining wall, and the widths of the first retaining wall and the second retaining wall are narrower than the width of the secondary bridge abutment.
Furthermore, the shape of above-mentioned first barricade and second barricade is right trapezoid, and last base, the lower base of first barricade link up with light material layer, inferior abutment side respectively, and the right angle side of first barricade supports the corbel, and the below is located to the hypotenuse of first barricade, and last base, the lower base of second barricade link up with inferior abutment, back retaining soil side respectively, and the right angle side of second barricade supports the attachment strap, and the below is located to the hypotenuse of second barricade.
Further, the light material layer is made of EPS or rubber materials.
Further, the sliding layer is made of rubber or felt material.
The invention relates to a construction method of a retaining wall structure of a bridge abutment rigid frame bridge, wherein the retaining wall structure of the bridge abutment rigid frame bridge comprises a main beam, a draw beam and a main bridge abutment arranged below the end part of the main beam close to the draw beam, a butt strap with a gap with the draw beam is arranged beside the draw beam, a secondary bridge abutment is arranged below a dilatation joint of the draw beam and the butt strap, a first retaining wall and a second retaining wall disconnected with the draw beam and the butt strap are integrally cast at two sides of the secondary bridge abutment, and a light material layer is filled between the first retaining wall and the main bridge abutment; the construction method comprises the following steps: (1) after the construction of the pile foundation, the bearing platform and the main bridge abutment is finished; (2) filling soil behind the bearing platform; (3) reinforcing and pouring the secondary abutment and the first and second retaining walls; (4) filling a light material layer in front of the first retaining wall and the main bridge abutment, and arranging a first sliding layer between the light material layer and the main bridge abutment; (5) a third sliding layer is arranged between the butt strap and the second retaining wall; (6) a second sliding layer is arranged between the contact surface of the first retaining wall and the guide beam; (7) and integrally pouring the guide beam and the main bridge abutment.
The first retaining wall and the second retaining wall are positioned at two sides of the longitudinal direction of the secondary abutment (as shown in figure 1), the first retaining wall between the main abutment and the secondary abutment is only integrally cast with the secondary abutment and the second retaining wall, and is disconnected with the main abutment and the guide beam, the light material layer filled between the main abutment and the secondary abutment is suitable for the requirements of temperature and earthquake action, the first sliding layer is arranged between the main abutment and the light material layer, and the light material layer is made of EPS (expandable polystyrene), rubber materials and the like. In addition, the second retaining wall that is located behind the secondary abutment also all with the attachment strap disconnection, set up the second sliding layer at the top of second retaining wall simultaneously, the sliding layer is rubber or felt, treats that the construction of main abutment is accomplished the back, carries out the arrangement of reinforcement and the pouring of secondary abutment and retaining wall, carries out the filling soil behind the platform afterwards, will draw beam and main abutment monolithic pouring simultaneously.
Compared with the prior art, the abutment rigid frame bridge structure and the construction method thereof have the following main advantages:
1. the secondary abutment absorbs deformation and internal force generated by various load effects, so that the deformation transmitted to the main abutment is minimized, and the defects of the traditional bridge caused by damage of expansion joints, bumping at bridge heads and the like are overcome;
2. the light material between the main bridge abutment and the retaining wall can also reduce the deformation generated by the action of temperature and earthquake, even if the secondary bridge abutment and the retaining wall do not have the deformation generated by complete dissipation, the light material behind the main bridge abutment is equivalent to a second defense line to absorb the residual deformation, and the deformation of the main bridge abutment is guaranteed to be minimum;
3. firstly, the retaining wall saves the slope protection behind the abutment, saves the urban land area, relieves the traffic pressure and brings great convenience to people for going out;
4. the whole structure does not have 45-degree slope protection on the two sides of the main abutment and the secondary abutment, and has very good integrity, so that the city planning is more attractive.
The invention is described in further detail below with reference to the figures and the detailed description.
Description of the drawings:
FIG. 1 is an overall schematic view of the present invention;
FIG. 2 is a schematic view of a secondary abutment and retaining wall;
FIG. 3 is a left side view of FIG. 2;
FIG. 4 is a right side view of FIG. 2;
the reference numbers in the figures illustrate: 1. a main beam; 2. constructing a joint; 3. a first slip layer; 4. a guide beam; 5. expanding the seam; 6. a butt strap; 7. a bolster; 8. a highway; 9. a main abutment; 10. a bearing platform; 11. a pile foundation; 12. a first retaining wall; 13. a secondary abutment; 14. a second retaining wall; 15. a layer of lightweight material; 31. a second slip layer; 32. and a third slip layer.
The specific implementation mode is as follows:
the present invention will be further described with reference to the following embodiments and drawings, but the present invention is not limited thereto.
The retaining wall structure of the abutment rigid frame bridge comprises a main beam 1, a guide beam 4 and a main abutment 9 arranged below the end part of the main beam 1 close to the guide beam, wherein an abutment 6 with a gap is arranged beside the guide beam 4, a
For good supporting effect, a bearing platform 10 and a pile foundation 11 are arranged below the main bridge abutment 9.
Further, in order to adapt to temperature and earthquake action, a first sliding layer 3 is arranged between the light material layer 15 and the main bridge 9.
Further, a second sliding layer 31 is arranged between the light material layer 15 and the first retaining wall 12 and the guide beam 4; a third sliding layer 32 is arranged between the second
Further, for the sake of reasonable design, the top surfaces of the first retaining wall 12 and the
Further, for the support effect is good, the shape of above-mentioned first barricade and second barricade is right trapezoid, the last base of first barricade, lower base link up with light material layer, subpool platform side respectively, the guide beam is supported to the right angle side of first barricade, the below is located to the hypotenuse of first barricade, the last base of second barricade, lower base link up with subpool platform, back fender soil side respectively, the right angle side of second barricade supports the attachment strap, the below is located to the hypotenuse of second barricade.
Further, for reasonable design, the light material layer is made of EPS or rubber materials.
Furthermore, for reasonable design, the sliding layer is made of rubber or felt material.
The invention relates to a construction method of a retaining wall structure of a bridge abutment rigid frame bridge, wherein the retaining wall structure of the bridge abutment rigid frame bridge comprises a main beam, a draw beam and a main bridge abutment arranged below the end part of the main beam close to the draw beam, a butt strap with a gap with the draw beam is arranged beside the draw beam, a secondary bridge abutment is arranged below a dilatation joint of the draw beam and the butt strap, a first retaining wall and a second retaining wall disconnected with the draw beam and the butt strap are integrally cast at two sides of the secondary bridge abutment, and a light material layer is filled between the first retaining wall and the main bridge abutment; the construction method comprises the following steps: (1) after the construction of the pile foundation, the bearing platform and the main bridge abutment is finished; (2) filling soil behind the bearing platform; (3) reinforcing and pouring the secondary abutment and the first and second retaining walls; (4) filling a light material layer in front of the first retaining wall and the main bridge abutment, and arranging a first sliding layer between the light material layer and the main bridge abutment; (5) a third sliding layer is arranged between the butt strap and the second retaining wall; (6) a second sliding layer is arranged between the contact surface of the first retaining wall and the guide beam; (7) and integrally pouring the guide beam and the main bridge abutment.
The first retaining wall and the second retaining wall are positioned at two sides of the longitudinal direction of the secondary abutment (as shown in figure 1), the first retaining wall between the main abutment and the secondary abutment is only integrally cast with the secondary abutment and the second retaining wall, and is disconnected with the main abutment and the guide beam, the light material layer filled between the main abutment and the secondary abutment is suitable for the requirements of temperature and earthquake action, the first sliding layer is arranged between the main abutment and the light material layer, and the light material layer is made of EPS (expandable polystyrene), rubber materials and the like. In addition, the second retaining wall that is located behind the secondary abutment also all with the attachment strap disconnection, set up the second sliding layer at the top of second retaining wall simultaneously, the sliding layer is rubber or felt, treats that the construction of main abutment is accomplished the back, carries out the arrangement of reinforcement and the pouring of secondary abutment and retaining wall, carries out the filling soil behind the platform afterwards, will draw beam and main abutment monolithic pouring simultaneously.
The specific embodiments of the present invention are as follows:
1. firstly, after the construction of the pile foundation 11, the bearing platform 10 and the main bridge abutment 9 is completed;
2. filling soil behind the bearing platform to the bearing platform 10;
3. reinforcing and pouring the
4. filling a light material layer 15 in front of the first retaining wall 12 and the main bridge abutment 9, and arranging a first sliding layer 3 between the light material layer 15 and the main bridge abutment 9;
5. a third sliding layer 32 is arranged between the butt strap 6 and the
6. a second sliding layer 31 is also arranged on the contact surface of the first retaining wall 12 and the guide beam 4;
7. the guide beam 4 and the main bridge abutment 10 are integrally cast.
The method starts from the overall planning of the city, solves the phenomenon of slope protection at the rear side of the traditional bridge abutment to a great extent, namely effectively saves space, is convenient for constructing other roads, relieves traffic pressure and the like after the measures of the method are adopted, and improves the overall planning of the city.
Compared with the prior art, the abutment rigid frame bridge structure and the construction method thereof have the following main advantages:
5. the secondary abutment absorbs deformation and internal force generated by various load effects, so that the deformation transmitted to the main abutment is minimized, and the defects of the traditional bridge caused by damage of expansion joints, bumping at bridge heads and the like are overcome;
6. the light material between the main bridge abutment and the retaining wall can also reduce the deformation generated by the action of temperature and earthquake, even if the secondary bridge abutment and the retaining wall do not have the deformation generated by complete dissipation, the light material behind the main bridge abutment is equivalent to a second defense line to absorb the residual deformation, and the deformation of the main bridge abutment is guaranteed to be minimum;
7. firstly, the retaining wall saves the slope protection behind the abutment, saves the urban land area, relieves the traffic pressure and brings great convenience to people for going out;
8. the whole structure does not have 45-degree slope protection on the two sides of the main abutment and the secondary abutment, and has very good integrity, so that the city planning is more attractive.
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