CN217651623U

CN217651623U - Combined support system

Info

Publication number: CN217651623U
Application number: CN202221692987.4U
Authority: CN
Inventors: 谢红平; 邱林; 朱小京; 肖汉昭; 韦章林; 张荣峰
Original assignee: Yunnan Construction and Investment Holding Group Co Ltd
Current assignee: Yunnan Construction and Investment Holding Group Co Ltd
Priority date: 2022-07-04
Filing date: 2022-07-04
Publication date: 2022-10-25
Anticipated expiration: 2032-07-04

Abstract

The utility model relates to a cast-in-place roof beam support technical field specifically discloses a modular support system is applied to cast-in-place concrete bridge box girder's assembly, bridge box girder include the pier stud with install in cast-in-place roof beam on the pier stud, full hall frame is buckled or is coiled full hall frame with cast-in-place roof beam bottom line type complex conventional bowl, includes SPS truss, bailey roof beam and full hall frame that from the bottom up installed in proper order, the I-steel is installed as supporting the girder and distributing beam and is carried out the load transmission to the SPS truss, the I-steel is installed with the junction of bailey roof beam as the load roof beam of full hall frame. The utility model discloses an installation SPS truss, bailey roof beam and full hall frame construct cast-in-place concrete bridge case roof beam's assembled support system, can satisfy cast-in-place roof beam line shape needs, can guarantee the whole bearing capacity of support again, have security and suitability concurrently, and it is whole to adopt the assembled part, and construction speed is fast, and part turnover rate is high.

Description

Combined support system

Technical Field

The utility model particularly relates to a cast-in-place roof beam support technical field specifically is a modular support system.

Background

In the construction process of the cast-in-place prestressed concrete box girder, whether the support is safe and reliable is a premise for ensuring construction safety, and although the prior art singly uses the full framing, the characteristics of gradual setting, setting time period and the like exist, the following two difficulties exist, namely, the terrain is steep, the distance between a bridge floor and the ground is higher, the ground is in a slope section, and the foundation treatment cost is high; secondly, the design characteristics of the bridge deck with small radius and large cross slope, the weight of the beam body is unbalanced, the support is biased, the support is subjected to force checking calculation, and the stability coefficient of the support is not high.

In consideration of the practical difficulties, the combined support can only be adopted for construction, the traditional steel pipe column, the Bailey beam and the full-hall support can meet the requirements, but the steel pipe column has high welding quality requirement and high cost, and is suitable for construction environments with limited underwater and land construction sites and requirements on clearance below a bridge.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a modular support system to solve the construction with the sectional shelf-unit that proposes in the above-mentioned background art, traditional steel-pipe column + bailey roof beam + full hall support though can satisfy the demands, but the steel-pipe column is high to the welding quality requirement, and the expense is on the high side, is applicable to the problem of the construction environment that is limited in aquatic and land construction place and has the requirement to the clearance under the bridge.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a modular support system, is applied to the assembly of cast-in-place concrete bridge box girder, the bridge box girder include the pier stud and install in cast-in-place roof beam on the pier stud, full hall frame is buckled with the formula of cast-in-place roof beam bottom line matched with bowl or is coiled full hall frame of knot formula, including SPS truss, bailey roof beam and the full hall frame of installing in proper order from the bottom up, the I-steel is installed as supporting the girder and the distribution roof beam carries out the load transmission to the SPS truss and the junction of bailey roof beam, U shaped steel is installed as the load roof beam of full hall frame to the bailey roof beam with the junction of full hall frame.

As a further aspect of the present invention: the SPS truss comprises a plurality of truss assemblies connected with one another, each truss assembly comprises four vertically-arranged standard vertical rods, each two standard vertical rods are fixedly connected with one another through at least one cross-brace support, and cross-brace oblique rods are fixedly connected between the standard vertical rods and the cross-brace supports.

As a further aspect of the present invention: in the SPS truss, the installation positions of the cross brace brackets are arranged on the standard upright stanchions at intervals of 60 cm.

As a further aspect of the present invention: support piece is installed to the tip of standard pole setting, support piece include with standard pole setting threaded connection's adjustable lead screw and with the supporting pad that adjustable lead screw is connected, when the lower extreme of standard pole setting was held as the support of SPS truss, support piece is held in the palm for ground, when the upper end of standard pole setting was held as the support of SPS truss, support piece is held in the palm for the day, holds in the palm, ground through setting up day, conveniently sets up the altitude requirement according to ground condition, top and carries out the accurate regulation.

As a further aspect of the present invention: be equipped with between the pier stud of SPS truss and bridge case roof beam and embrace tight mechanism, it embraces the post for enclosing to locate bridge case roof beam pier stud outside to embrace tight mechanism, it includes vertical pole support and horizontal pole support to embrace the post, vertical pole support and horizontal pole support structure are the same, are the steel pipe, adopt the fastener to connect between two steel pipes.

As a further aspect of the present invention: the Bailey beams comprise longitudinal support Bailey beams and cross-frame Bailey beams, the width of each cross-frame Bailey beam is 45CM, a flower stand is installed at the joint of the Bailey beams, each flower stand comprises cross support rods and vertical support rods, the cross support rods and the vertical support rods are installed at the joint of the Bailey beams in a 'well' shape, and the cross support rods and the vertical support rods are fixedly installed on the Bailey beams through steel pipe fasteners.

As the utility model discloses further scheme again: still including beiLei roof beam reinforcement, beiLei roof beam reinforcement is including the vertical channel-section steel of installing in beiLei roof beam intermediate position, the end department of channel-section steel installs the reinforcement chord member.

As the utility model discloses further scheme again: full hall frame includes pole setting and horizontal pole, and pole setting and horizontal pole pass through the bowl and detain the articulate, full hall frame bottom is installed and is used for carrying out the full hall frame platform that supports to it, and the top of full hall frame is mutually supported with the cast-in-place roof beam bottom line type of bridge box girder.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an installation SPS truss, the assembled support system of Bailey roof beam and full hall frame founding cast-in-place concrete bridge case roof beam, the I-steel is installed as supporting girder and distribution roof beam and is carried out the load transmission with the junction of Bailey roof beam to the SPS truss, the U shaped steel is installed as the load roof beam of full hall frame with the junction of full hall frame to be equipped with between the pier stud of SPS truss and bridge case roof beam and hold tightly the mechanism, the pergola is installed to the joint department of Bailey roof beam, can satisfy cast-in-place roof beam line shape needs, can guarantee the whole bearing capacity of support again, have security and suitability concurrently, its whole assembled part that adopts, construction speed is fast, part turnover rate is high.

Drawings

Fig. 1 is a schematic structural diagram of a combined support system for supporting a bridge box girder.

Fig. 2 is a schematic structural diagram of a beret beam in a combined support system.

Fig. 3 is a schematic structural view of the SPS truss mounting planter in the combined support system, wherein a right side view is a side view, and a left side view is a front view.

Fig. 4 is a schematic structural diagram of the SPS truss-mounted bailey beam reinforcement in the combined type support system, wherein a right side view is a side view, and a left side view is a front view.

Fig. 5 is a partial cross-sectional view of a full framing support for a bridge box girder in a modular racking system.

In the figure: 100-bridge box girders, 200-SPS trusses, 210-cross brace brackets, 220-standard upright rods, 230-upright rod joints, 240-supports, 250-cross frame diagonal rods, 300-Bailey beams, 310-flower stands, 320-reinforcing chords, 330-channel steel and 400-full hall frames.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the construction process of the cast-in-place prestressed concrete box girder, whether the support is safe and reliable is a premise for ensuring construction safety, and the prior art singly uses the full support, which has the characteristics of gradual setting, time period setting and the like, but has the following two difficulties, namely, steep terrain, higher bridge deck distance from the ground, high ground slope section and high foundation treatment cost; secondly, the design characteristics of the bridge deck with small radius and large cross slope, the weight of the beam body is unbalanced, the support is biased, the support is subjected to force checking calculation, and the stability coefficient of the support is not high.

Based on this, please refer to fig. 1 to 5, in an embodiment of the present invention, a combined type support system is applied to an assembled type support system of a cast-in-place concrete bridge box girder 100, and includes an SPS truss 200, a bailey beam 300 and a full hall frame 400 which are sequentially installed from bottom to top, i-beams are installed at a connection position of the SPS truss 200 and the bailey beam 300 as a support main beam and a distribution beam for load transfer, and U-beams are installed at a connection position of the bailey beam 300 and the full hall frame 400 as a bearing beam of the full hall frame 400;

it should be noted that, the bridge box girder 100 includes the pier stud and install in cast-in-place roof beam on the pier stud in the embodiment of the utility model provides an, full hall frame 400 is buckled with the bowl formula that cast-in-place roof beam bottom line type matches or is coiled and detain full hall frame.

Referring to fig. 2, in the embodiment of the present invention, the SPS truss 200 includes a plurality of connected truss assemblies, each truss assembly includes four vertically arranged standard vertical rods 220, each two standard vertical rods 220 are fixedly connected to each other through at least one cross-brace bracket 210, and a cross-brace diagonal rod 250 is fixedly connected between each standard vertical rod 220 and each cross-brace bracket 210, so as to improve the structural stability of the SPS truss 200;

it should be noted that, in the SPS truss 200, the standard upright 220 has a cross brace bracket 210 mounting position every 60cm, the cross brace bracket 210 is conveniently and quickly mounted according to the load, the bearing capacity of a single upright of the standard upright 220 is large, and according to a load test, the bearing capacity of the single upright is 69.15t, the safe load is 34.5 tons (safety factor 2.0), and the safe load is 27.6t (safety factor 2.5);

further, in the embodiment of the present invention, a supporting member 240 is installed at an end of the standard vertical rod 220, the supporting member includes an adjustable screw rod in threaded connection with the standard vertical rod 220 and a supporting pad connected to the adjustable screw rod, when a lower end of the standard vertical rod 220 is used as a supporting end of the SPS truss 200, the supporting member is a ground support, when an upper end of the standard vertical rod 220 is used as the supporting end of the SPS truss 200, the supporting member is a sky support, and by setting the sky support and the ground support, precise adjustment can be conveniently performed according to ground conditions and top-setting height requirements;

still further, in the embodiment of the utility model provides an in, be equipped with between the pier stud of SPS truss 200 and bridge box girder 100 and hold tight mechanism, hold tight mechanism for enclosing the pillar of locating bridge box girder 100 pier stud outside, it includes vertical pole support and horizontal pole support to hold the post, vertical pole support and horizontal pole supporting structure are the same, are diameter 48 x 3.0 mm's steel pipe, adopt the fastener to connect between two steel pipes, vertical pole support vertical interval 3m sets up one, the length of horizontal pole support horizontal interval standard pole setting 220 and rather than fixed connection.

Referring to fig. 3-4, in the embodiment of the present invention, the bailey beam 300 includes a longitudinal support bailey beam and a transverse support bailey beam, the width of the transverse support bailey beam is 45CM, a flower shelf 310 is installed at the joint of the bailey beam 300, the flower shelf 310 includes a transverse strut and a vertical strut, the transverse strut and the vertical strut are installed at the joint of the bailey beam 300 in a shape of "well", and the transverse strut and the vertical strut are fixedly installed on the bailey beam 300 by using a steel pipe fastener;

in addition, when not being in the web member position to bei lei roof beam fulcrum, in order to improve bei lei roof beam 300's structural stability, need strengthen bei lei roof beam fulcrum position the embodiment of the utility model provides an, still including bei lei roof beam reinforcement, bei lian roof beam reinforcement includes the vertical channel-section steel 330 of installing in bei lei roof beam 300 intermediate position, reinforcing chord 320 is installed to channel-section steel 330's end department.

Referring to fig. 5, in the embodiment of the present invention, the full frame 400 includes a vertical rod and a horizontal rod, the vertical rod and the horizontal rod are connected by a socket joint, the full frame 400 is mounted with a full frame platform for supporting the full frame, and the top of the full frame 400 is matched with the line of the bottom of the cast-in-situ beam of the bridge box beam 100, so that the full frame 400 can effectively support the cast-in-situ beam of the bridge box beam 100.

To sum up, the utility model discloses an installation SPS truss, bailey roof beam and full hall frame construct cast-in-place concrete bridge box girder's assembled support system, the I-steel is installed as supporting the girder and the transmission of load is carried out to the junction of SPS truss and bailey roof beam, bailey roof beam and full hall frame's junction installs U shaped steel as full hall frame's load beam, and be equipped with between the pier stud of SPS truss and bridge box girder and embrace tightly the mechanism, the pergola is installed to joint department of bailey roof beam, can satisfy cast-in-place roof beam line shape needs, can guarantee the whole bearing capacity of support again, have security and suitability concurrently, its whole assembled parts that adopt, construction speed is fast, part turnover rate is high.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a modular support system, is applied to the assembly of cast-in-place concrete bridge box girder (100), bridge box girder (100) include the pier stud with install in cast-in-place roof beam on the pier stud, its characterized in that, include SPS truss (200), bailey roof beam (300) and full hall frame (400) that from the bottom up installed in proper order, the I-steel is installed as supporting the girder and carrying out the load transmission with the distribution beam in SPS truss (200) and the junction of bailey roof beam (300), U shaped steel is installed as the load beam of full hall frame (400) in bailey roof beam (300) and the junction of full hall frame (400), full hall frame (400) and the bowl of cast-in-place roof beam bottom line type complex or dish knot formula full hall frame.

2. The modular racking system of claim 1, wherein said SPS truss (200) comprises a plurality of connected truss assemblies, said truss assemblies comprising four vertically disposed standard vertical poles (220), each two standard vertical poles (220) being fixedly connected to each other by at least one cross-brace bracket (210), and cross-brace diagonal rods (250) being fixedly connected between said standard vertical poles (220) and said cross-brace brackets (210).

3. The modular racking system of claim 2, wherein said SPS truss (200) has standard vertical poles (220) with cross brace racking (210) installed every 60 cm.

4. The modular support system of claim 3, wherein a support (240) is mounted to an end of the standard upright (220), the support comprising an adjustable lead screw threadedly connected to the standard upright (220) and a support pad connected to the adjustable lead screw.

5. The combined support system according to claim 4, wherein a holding mechanism is arranged between the SPS truss (200) and the pier stud of the bridge box girder (100), the holding mechanism is a holding post arranged outside the pier stud of the bridge box girder (100), the holding post comprises a longitudinal rod support and a cross rod support, the longitudinal rod support and the cross rod support are of the same structure and are both steel pipes, and the two steel pipes are connected through a fastener.

6. The combined bracket system of claim 1, wherein the Bailey beams (300) comprise longitudinal support Bailey beams and transverse support Bailey beams, the width of each transverse support Bailey beam is 45CM, flower stands (310) are installed at joints of the Bailey beams (300), each flower stand (310) comprises transverse supporting rods and vertical supporting rods, the transverse supporting rods and the vertical supporting rods are installed at the joints of the Bailey beams (300) in a shape of a Chinese character 'jing', and the transverse supporting rods and the vertical supporting rods are fixedly installed on the Bailey beams (300) by steel pipe fasteners.

7. The combined bracket system of claim 6, further comprising a Bailey beam reinforcement, wherein the Bailey beam reinforcement comprises a channel steel (330) vertically installed in the middle of the Bailey beam (300), and the end of the channel steel (330) is provided with a reinforcing chord (320).

8. The combined support system according to claim 1, wherein the full framing (400) comprises vertical rods and cross rods, the vertical rods and the cross rods are connected through a bowl buckle joint, a full framing platform for supporting the full framing (400) is installed at the bottom of the full framing (400), and the top of the full framing (400) is matched with the line shape of the bottom of a cast-in-place beam of the bridge box beam (100).