CN217896260U

CN217896260U - Cast-in-place case roof beam tie rod formula supporting structure of river course strides

Info

Publication number: CN217896260U
Application number: CN202221951191.6U
Authority: CN
Inventors: 周亮; 蔡少武; 程建波; 方昊
Original assignee: Wisdri Engineering and Research Incorporation Ltd; Wisdri Urban Construction Engineering Technology Co Ltd
Current assignee: Wisdri Engineering and Research Incorporation Ltd; Wisdri Urban Construction Engineering Technology Co Ltd
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2022-11-25
Anticipated expiration: 2032-07-27

Abstract

The utility model discloses a cross-river cast-in-place box girder tied rod type support structure, which comprises an arch frame foundation, arch frames, horizontal tie bars, distribution beams and full framing adjusting layers, wherein the arch frame foundation is divided into two groups which are respectively arranged at two sides of a river channel; two ends of the arch are respectively fixed on the tops of the two arch foundations; the horizontal tie bar is arranged across the river channel, and two end parts of the horizontal tie bar are respectively connected with the arch springing of the arch center; the distribution beams are arranged at intervals along the top of the arch frame; the lower end of the full framing adjusting layer is connected with the distribution beam, and the template system of the cast-in-place box beam is arranged on the full framing adjusting layer. The beneficial effects of the utility model are that: the utility model discloses set up horizontal tie rod in the below of bow member to offset the horizontal thrust of bow member, need not to set up interim support in the river course again, compare with prior art, need not occupy the river course construction, do not influence the river course drainage of flood discharge, the hidden danger that exists, safe and reliable are supported in construction interim when effectively avoiding the river course flood season.

Description

Cast-in-place case roof beam tie rod formula supporting structure of river course strides

Technical Field

The utility model relates to a bridge construction technical field, concretely relates to cast-in-place case roof beam tie rod formula supporting structure strides river course.

Background

At present, the traditional construction method adopted by the beam type cast-in-place box beam for cross-river construction is a few-bracket method, namely, a bracket foundation is arranged in a bridge pier and a river channel according to a certain span, a steel upright post and a cross beam are arranged on the foundation, a Bailey beam longitudinal beam is erected on the cross beam, and finally a cast-in-place box beam template system is arranged on the Bailey beam. The construction process has the following defects: foundations and stand columns need to be arranged in the riverway, when the bearing capacity of the riverway foundation does not meet the requirement, temporary pile foundations need to be arranged to improve the bearing capacity, and riverway construction with high water level and high flow rate and inconvenience are caused; if the river-crossing construction is needed, span of few brackets needs to be enlarged, cost is greatly increased, and the maximum span of the brackets is limited along with the enlargement of the span of few brackets, so that mid-crossing deflection and construction safety are difficult to guarantee when the span is too large. In addition, during the flood season, the requirement of river course flood discharge is considered, river course construction is limited to occupy in many places, and construction temporary supports in the river course are influenced by the flood and have large quality and potential safety hazards. Therefore, there is a need for improvements in the prior art.

Disclosure of Invention

An object of the utility model is to prior art not enough, provide one kind and do not occupy river course construction, safe and reliable's cast-in-place case roof beam system rod-type supporting structure of crossing the river course.

The utility model adopts the technical proposal that: a tie rod type support structure of a cross-river cast-in-place box beam comprises an arch frame foundation, arch frames, horizontal tie rods, distribution beams and full framing adjusting layers, wherein two groups of arch frame foundations are respectively installed on two sides of a river channel; two ends of the arch are respectively fixed on the tops of the two arch foundations; the horizontal tie bar is arranged across the river channel, and two end parts of the horizontal tie bar are respectively connected with the arch springing of the arch center; the distribution beams are arranged at intervals along the top of the arch frame; the lower end of the full framing adjusting layer is connected with the distribution beam, and the template system of the cast-in-place box beam is arranged on the full framing adjusting layer.

According to the scheme, the horizontal tie bar is made of profile steel.

According to the scheme, the arch frame foundation comprises a pile foundation and a bearing platform, the bearing platform is fixed on the pile foundation, the lower portion of the bearing platform is located in the soil body, an embedded part used for being connected with the arch frame is embedded in the bearing platform, and the upper portion of the embedded part extends out.

According to the scheme, the bearing platform is of a reinforced concrete structure.

According to the scheme, the arch center is formed by splicing and processing a plurality of section steels.

According to the scheme, the arch center is formed by splicing and processing I30-56I-shaped steel.

According to the scheme, the full-framing support adjusting layer comprises a stand column, a cross rod connected to the stand column and diagonal rod bridging connected to the stand column and the cross rod, wherein the lower end of the stand column is connected with the distribution beam, an adjustable jacking support is arranged at the upper end of the stand column, and a template system provided with a cast-in-place box beam is arranged on the adjustable jacking support.

According to the scheme, the upright columns, the cross rods and the diagonal rod bridging of the full framing adjusting layer are all made of steel pipes.

According to the scheme, the distribution beam is made of I14-20I-shaped steel.

The utility model has the advantages that: stride cast-in-place case roof beam tie bar formula bearing structure of river course and set up horizontal tie bar in the below of bow member to offset the horizontal thrust of bow member, need not to set up interim support in the river course again, compare with prior art, need not occupy the river course construction, do not influence river course flood discharge drainage, the hidden danger that exists is supported temporarily in the time of effectively avoiding the river course flood season in construction, safe and reliable.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 isbase:Sub>A schematic sectional view taken along linebase:Sub>A-base:Sub>A of fig. 1.

Wherein: 1. an arch frame foundation; 1.1, pile foundation; 1.2, a bearing platform; 2. a riverbed line; 3. a horizontal tie bar; 4. an arch frame; 5. a distribution beam; 6. a full framing adjusting layer; 7. casting a box girder body in situ; 8. bridge pier stud; 9. a river channel.

Detailed Description

For a better understanding of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings.

As shown in fig. 1, the cast-in-place box beam tied support structure across a river comprises an arch frame foundation 1, an arch frame 4, a horizontal tie bar 3, distribution beams 5 and a full framing adjusting layer 6, wherein two groups of arch frame foundations 1 are respectively arranged on two sides of a river channel 9; two ends of the arch frame 4 are respectively fixed on the tops of the two arch frame bases 1; the horizontal tie bar 3 is arranged across the river channel 9, and two end parts of the horizontal tie bar are respectively connected with the arch springing of the arch frame 4; the distribution beams 5 are provided with a plurality of groups and are arranged at intervals along the top of the arch frame 4; the lower end of the full framing adjusting layer 6 is connected with the distribution beam 5, and the template system of the cast-in-place box beam is arranged on the full framing adjusting layer 6.

Preferably, the arch frame foundation 1 comprises a pile foundation 1.1 and a bearing platform 1.2, the bearing platform 1.2 is fixed on the pile foundation 1.1, the lower portion of the bearing platform 1.2 is located in the soil body, an embedded part used for being connected with the arch frame 4 is embedded in the bearing platform 1.2, and the upper portion of the embedded part extends out.

Preferably, the bearing platform 1.2 is a reinforced concrete structure.

In this embodiment, bow member basis 1 sets up at river course 9 both sides, according to the river course 9 geological conditions, adopts pile foundation 1.1 to consolidate, and cushion cap 1.2 size and pile foundation 1.1 size need satisfy ground bearing capacity checking and calculation and superstructure dimensional requirement to guarantee that whole support system satisfies the bearing capacity requirement.

Preferably, the arch frame 4 is formed by splicing and processing a plurality of section steels, and specifically, the arch frame 4 is formed by splicing and welding I-shaped steels.

In this embodiment, the arch frame 4 is used as a main bearing member of the whole support, and I30-56I-steel can be adopted according to actual conditions.

Preferably, said horizontal tie-rods 3 are made of section steel.

In this embodiment, the horizontal tie bar 3 is arranged below the arch center 4, and two ends of the horizontal tie bar are respectively connected with the arch springing of the arch center 4 to offset the horizontal force when the arch center 4 is stressed; the horizontal tie bar 3 is made of I25-40I-shaped steel according to actual conditions.

Preferably, the distribution beam 5 is made of I14-20I-steel.

In this embodiment, the distribution beam 5 is disposed above the arch frame 4, and is mainly used as a basic distribution beam 5 of the upper full framing adjusting layer 6, and is connected to the arch frame 4 by welding.

Preferably, the full hall support adjusting layer 6 comprises a stand column, a cross rod connected to the stand column and an inclined rod bridging connected to the stand column and the cross rod, wherein the lower end of the stand column is connected with the distribution beam 5, an adjustable jacking is arranged at the upper end of the stand column, and a template system of a cast-in-place box beam is installed on the adjustable jacking.

In the embodiment, the full-framing support adjusting layer 6 is erected above the distribution beam 5, and the upright columns, the cross bars, the diagonal rod cross braces and the like can be made of steel pipes; the cast-in-place box girder body 7 is shown in fig. 2, two ends of the cast-in-place box girder body 7 are supported by bridge piers 8, and the template system and the adjustable jacking are conventional technologies, and are not described again here.

As shown in fig. 1, the utility model discloses in, riverbed line 2 is riverbed line of river course 9, and supporting structure's construction does not occupy river course 9, does not influence river course 9 flood discharge drainage.

It should be noted that the above is only a preferred embodiment of the present invention, and the present invention is not limited thereto, and although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that the technical solutions of the foregoing embodiments can be modified or equivalent replaced by some technical features, but any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A kind of cast-in-place box beam tie rod type supporting structure of crossing the river course, characterized by that, including bow member foundation, bow member, horizontal tie rod, distribution beam and all over the hall support to regulate the layer, the said bow member foundation has two groups, mount to the both sides of river course separately; two ends of the arch are respectively fixed on the tops of the two arch foundations; the horizontal tie bar is arranged across the river channel, and two end parts of the horizontal tie bar are respectively connected with the arch springing of the arch center; the distribution beams are arranged at intervals along the top of the arch frame; the lower extreme of full hall support adjustment layer links to each other with the distributive girder, and cast-in-place box girder's template system is located on full hall support adjustment layer.

2. The cast-in-place box beam tie-bar type support structure across a river channel of claim 1, wherein the horizontal tie bar is made of section steel.

3. The cast-in-place box beam tied rod type bracket structure across the river course according to claim 1, wherein the arch frame foundation comprises a pile foundation and a bearing platform, the bearing platform is fixed on the pile foundation, the lower part of the bearing platform is positioned in the soil body, an embedded part used for connecting the arch frame is embedded in the bearing platform, and the upper part of the embedded part extends out.

4. The cast-in-place box beam tied rod type bracket structure across a river course of claim 3, wherein the bearing platform is a reinforced concrete structure.

5. The cast-in-place box girder tied rod type bracket structure across river course according to claim 1, wherein the arch is formed by splicing a plurality of section steels.

6. The cast-in-place box girder tied rod type bracket structure across the river course according to claim 5, wherein the arch center is formed by splicing I30-56I-shaped steel.

7. The cross-river cast-in-place box beam tie bar type support structure of claim 1, wherein the full framing adjustment layer comprises upright posts, cross bars connected to the upright posts, and diagonal cross braces connected to the upright posts and the cross bars, wherein the lower ends of the upright posts are connected to the distribution beam, the upper ends of the upright posts are provided with adjustable jacking brackets, and the adjustable jacking brackets are provided with template systems for mounting the cast-in-place box beam.

8. The cast-in-place box beam tied pole type bracket structure across the river channel of claim 7, wherein the upright posts, the cross rods and the diagonal cross braces of the full framing adjusting layer are all made of steel pipes.

9. The cast-in-place box beam tie-rod type bracket structure across a river course of claim 1, wherein the distribution beam is made of I14-20I-steel.