CN213625274U - Continuous beam zero number block combined support - Google Patents

Abstract

The utility model provides a continuous beam zero number block modular support, including steel bar steel pipe pile stand, it has the bracket to directly prop to alternate on the every steel bar steel pipe pile stand, and the bracket directly props and is equipped with the bracket bracing, and the bracket directly props and is equipped with a set of supporting beam, and the supporting beam top is equipped with the uprising framed bent in the same direction as the bridge to the direction, and steel construction framed bent top is equipped with the bamboo plywood. The utility model provides a continuous beam zero number block combined support which utilizes bearing platform embedded steel bars to solve the inconvenience of occupying land and directly supporting; the mode of adopting many buttresses is carried out the anchor, reduces pier shaft atress, reduces the hogging moment value near the fulcrum, reinforcing stability. The whole combined steel type supporting structure is simple, the structure is clear from top to bottom, the application of each single steel part is also obvious and easy to understand, the field guidance of each technician and the actual construction difficulty of a construction team are greatly reduced, and the combined steel type supporting structure is convenient and efficient.

Description

Continuous beam zero number block combined support

Technical Field

The utility model relates to a continuous beam zero number block modular support belongs to the safety of hanging end in the filling beam string basket work progress and faces limit protection technical field.

Background

With the rapid development of national economy of China, the traffic and transportation industry is greatly developed, and the establishment of the 1 st modern traffic network in the four-way and eight-reach mode has great significance for further development of economy and reduction of regional differences. Therefore, the rapid progress of bridge engineering plays a key role in regional connection, crossing dangerous terrains and crossing traffic main roads. Therefore, bridges with larger span and more excellent performance are increasingly required. And the large-span prestressed concrete box-shaped section continuous beam constructed by the symmetrical balance cantilever method can be widely developed. As a variable cross-section continuous beam bridge, the beam height near the pivot is increased, so that the influence on the internal force of the cross section caused by the constant load of the beam body is not large, the clearance under the bridge is not greatly influenced, and the span can be larger. When the large-span prestressed concrete continuous beam is constructed by adopting a cantilever method, a system conversion process of pier beam temporary consolidation and simple support and rotation continuity exists, so that the structural stability is more important, and the construction is more complicated.

Disclosure of Invention

In order to solve the not enough of prior art, the utility model provides a continuous beam zero number block combination formula support, when zero number piece is with prestressing tendons and interim cushion with the roof beam body and pier stud temporary anchorage, adopt the bracket at the fulcrum both ends, combination such as framed bent sets up interim buttress, distributes construction load and self weight, reduces near the hogging moment value of fulcrum, reinforcing stability, the utility model discloses roof beam body and single pier shaft temporary anchorage before than, increase two nodes just, trun into whole statically determinate structure to the hyperstatic structure who has a plurality of unnecessary retrains, make the rigidity and the stability of zero number piece basis all improve to some extent, can satisfy structural stability, reduce the construction complexity.

The utility model discloses a solve the technical scheme that its technical problem adopted and be: the utility model provides a continuous beam zero number block formula support, include and arrange the reinforcing bar steel pipe pile stand in pier shaft both sides according to the transversal bridge to the direction, every row 2, reinforcing bar steel pipe pile stand is fixed in on the cushion cap through with pre-buried steel sheet welded at the cushion cap, it has the bracket to directly prop to alternate on every reinforcing bar steel pipe pile stand, be equipped with the bracket bracing between bracket directly props overhanging end and concrete steel pipe post lower part, be equipped with a set of supporting beam according to the transversal bridge to the direction on the bracket directly props, distribute respectively in the overhanging position of bracket directly props and the bracket directly props upper portion between reinforcing bar steel pipe pile stand and pier shaft, the supporting beam top is equipped with the steel construction framed bent along the bridge to the direction, the steel construction framed bent includes well framed bent and side framed bent, wherein well framed bent is arranged for full length and is arranged between supporting beam top and reinforcing bar steel pipe pile stand, the side framed bent is located reinforcing bar steel pipe pile stand directly over, including the first side framed bent rest support section that is located the reinforcing bar steel pipe pile The side bent frame support section, the middle bent frame and the side bent frame are all height-variable bent frames, and a bamboo plywood is arranged above the steel structure bent frame.

And angle steel is welded at the joint of the steel pipe column and the embedded steel plate.

The bottom welding of steel reinforced pipe pile stand and bracket directly props the junction has the bracket reinforcing plate.

The bracket inclined strut adopts a spiral pipe.

And adjacent steel bar pipe pile stand columns positioned on the same side of the pier body are fixed through steel pipe parallel connection.

The distance between adjacent side bent frames is 1/3-2/3 of the distance between middle bent frames.

The utility model discloses based on the beneficial effect that its technical scheme had lies in:

(1) the utility model provides a continuous beam zero number block combined support, which adopts the combination of steel components such as brackets, bent frames, spiral pipes and the like at the two ends of the fulcrum to arrange temporary buttresses, distributes construction load and self weight, transmits the load to a bearing platform below, reduces the hogging moment value near the fulcrum of the pier body, and enhances the stability; the whole statically determinate structure is converted into the statically indeterminate structure with redundant constraints by adding two rigid nodes, so that the rigidity of the 0# block foundation is improved, and the system conversion process of pier-beam temporary consolidation and simple support conversion is more stable and safer;

(2) the utility model provides a pair of continuous beam zero number block modular support concreties at pier top pad stone both sides embedded bar with other 0# piece, pier body side embedded steel sheet, the scheme that stretches out bracing support framed bent compares, make full use of cushion cap size utilizes cushion cap embedded bar, set up a plurality of interim buttress, on buttress basis, installation bracket and framed bent do not relate to pier body reinforcing bar adjustment, the structure is from last to clear down, concreties temporarily again and support dual function has, more conveniently be suitable for.

Drawings

FIG. 1 is a schematic longitudinal bridge structure of a continuous beam zero-number block combined support;

FIG. 2 is a schematic cross-bridge structure of the continuous beam zero-number block combined bracket;

FIG. 3 is a top view of the pier top of the continuous beam zero block modular support;

FIG. 4 is a sectional top view of the continuous beam zero block modular mount;

FIG. 5 is a detail and a large outline of a continuous beam zero block combined bracket;

FIG. 6 is a schematic view of a middle bent frame structure in the continuous beam zero-number block combined support;

fig. 7 is a schematic view of an inner bent structure of a continuous beam zero-number block combined support.

In the figure: the method comprises the following steps of 1-reinforced steel pipe pile stand column, 2-bracket straight support, 3-bracket diagonal support, 4-bracket reinforcing plate, 5-supporting cross beam, 6-middle bent frame, 6 a-middle bent frame horizontal rod, 6 b-middle bent frame vertical rod, 6 c-middle bent frame diagonal rod, 7-side bent frame, 7 a-side bent frame horizontal rod, 7 b-side bent frame vertical rod, 7 c-side bent frame diagonal rod, 8-steel pipe parallel connection, 9-bottom die, 10-bearing platform, 11-pier body and 12-zero block.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

Referring to fig. 1 to 7, the utility model provides a continuous beam zero number block combined support, which comprises a steel bar steel pipe pile upright post 1 arranged on two sides of a pier body 11 along the transverse bridge direction, 2 steel bar steel pipe pile upright posts are arranged on each row, the steel bar steel pipe pile upright posts are welded and fixed on a bearing platform 10 through steel plates pre-embedded in the bearing platform, a bracket straight strut 2 is inserted on each steel bar steel pipe pile upright post, a bracket inclined strut 3 is arranged between the overhanging end of the bracket straight strut and the lower part of a concrete steel pipe column, a group of supporting beams 5 are arranged on the bracket straight strut along the transverse bridge direction, the supporting beams are respectively distributed on the overhanging part of the bracket straight strut and the upper part of a straight strut section between the steel bar steel pipe pile upright post and the pier body, a steel structure bent is arranged above the supporting beams along the bridge direction, the steel structure bent comprises a middle bent 6 and a side bent 7, wherein the middle bent is arranged above the supporting beams and between the steel bar steel, the device comprises a first side bent frame support section positioned on the outer side of a steel bar steel pipe pile upright post and a second side bent frame support section positioned between the steel bar steel pipe pile upright post and a pier body, wherein both a middle bent frame and a side bent frame adopt height-variable bent frames, and a bamboo rubber plate is arranged above the steel structure bent frame; an angle steel is welded at the joint of the steel pipe column and the embedded steel plate; and a bracket reinforcing plate 4 is welded at the bottom of the straight support joint of the steel reinforced pipe pile stand column and the bracket.

The bracket inclined strut adopts a spiral pipe, plays the role of inclined strut in the bracket, and connects and supports the extended horizontal bracket part with the spiral pipe upwards. A plurality of rows of vertical supporting cross beams are placed on the horizontal longitudinal bracket, and finally, the heightening bent frames are placed on the pier tops and the cross beams. And carrying out full welding between the structures and adopting welding connection. The adjacent spiral pipes in the same row are connected in parallel by I-shaped steel, and the left side and the right side of the pier body are connected in a counter-pulling manner to maintain stability.

And adjacent steel bar pipe pile stand columns positioned on the same side of the pier body are fixed through a steel pipe parallel connection 8.

The distance between adjacent side bent frames is 1/3-2/3 of the distance between middle bent frames.

In this embodiment, the steel reinforced pipe pile stand is equipped with 4, through cushion cap embedded steel and with embedded steel plate angle steel welding, is fixed in the cushion cap, and rethread buttress top embedded steel carries out the rigidity with number zero piece 12 and concreties, improves stability. The installation of horizontal relation needs to be carried out between adjacent buttress, adopts the steel pipe to carry out horizontal parallel connection, improves overall stability. The quality of the welding seam is ensured in the installation process.

The embedded steel plate of the bearing platform adopts a phi 1800X 20mm steel plate, and 32L-shaped steel bars are welded below the embedded steel plate and penetrate into the bearing platform for anchoring. The top of the buttress is anchored with the bottom of the main beam by adopting 40 anchor bars with the diameter of 32mm, the steel pipe piles are anchored for 1m with the bottom of the beam, the bottoms of the steel pipe piles are the same, the embedded steel pipe piles are anchored for 1m with the bottom of the beam, the positions and elevations of embedded parts of the pier body are accurately set, the lower parts of the stand columns are welded on the embedded steel plates, and the steel pipe piles and the embedded steel plates are welded by using angle steel.

The steel pipe column with diameter of 1400 mm and 14mm is used as the steel pipe pile upright post. The transverse bridge is provided with a row of 2 upright columns towards the pier body, and each 0# section bracket system comprises four steel pipe upright columns. The column is filled with C40 concrete to increase the anti-overturning capability of the column. The steel pipe is perforated, penetrates into the bracket to be directly supported, and three stiffening plates are welded at the joint to serve as a bracket reinforcing plate, so that the fixing and connecting effects are achieved. And the rear welding bracket inclined strut connects the extended end of the bracket straight strut with the lower part of the concrete steel pipe column, and supports the whole bracket straight strut and the assembling rigid structure with the upper part distributing load.

The bracket is directly propped up and is laid worker's rigid support crossbeam according to horizontal bridge to the direction, and two are in the bracket and directly prop overhanging position, fixed third is at the straight section upper portion that props between steel-pipe column and pier shaft. The main steel structure bent frames which are used for distributing load and are arranged along the bridge direction are arranged above the supporting cross beams and divided into a middle bent frame and a side bent frame. The middle bent frame comprises a middle bent frame horizontal rod 6a, a middle bent frame vertical rod 6b and a middle bent frame inclined rod 6c, and the side bent frame comprises a side bent frame horizontal rod 7a, a side bent frame vertical rod 7b and a side bent frame inclined rod 7 c; the full length is arranged above the vertical supporting beam and between the two steel pipe columns, and six rows are arranged at intervals. The side bent frames on the two sides are positioned right above the concrete steel pipe column and are cut into two ends by the steel pipe column, but 6 rows are arranged at intervals, wherein the interval is one half of the interval of the middle bent frames. No matter limit framed bent or well framed bent, be and uprise the framed bent, there is certain angle in Z axle direction for the framed bent promptly, and pier shaft both sides framed bent opening is and keeps away from pier shaft end, the 12 hunches of the No. one piece of being convenient for set up. The bent horizontal rod and the bent inclined rod are used as the basis, and the bent vertical rod is welded and fixed in the middle of the bent horizontal rod and the bent inclined rod, so that the effect of changing the vertical Z-axis angle of the bent is achieved. And finally, splicing a bamboo plywood above the bent frame and fixing the bamboo plywood on the bent frame to serve as a bottom film 9 of the zero block for use.

The utility model provides a continuous beam zero number block combined support which utilizes bearing platform embedded steel bars to solve the inconvenience of occupying land and directly supporting; the mode of adopting many buttresses is carried out the anchor, reduces pier shaft atress, reduces the hogging moment value near the fulcrum, reinforcing stability. The whole combined steel type supporting structure is simple, the structure is clear from top to bottom, the application of each single steel part is also obvious and easy to understand, the field guidance of each technician and the actual construction difficulty of a construction team are greatly reduced, and the combined steel type supporting structure is convenient and efficient.

Modifications and variations are possible to those skilled in the art in light of the above teachings, and all such modifications and variations are intended to be included within the scope of the present invention as defined in the following claims.

Claims (6)

1. The utility model provides a continuous beam zero number block combination formula support, includes arranges in 2 rows above reinforcing bar steel pipe pile stands of pier shaft both sides according to horizontal bridge to the direction, its characterized in that: each row comprises 2 steel pipe pile columns, the steel pipe pile columns are welded and fixed on the bearing platform through steel plates pre-buried in the bearing platform, a bracket straight support is inserted into each steel pipe pile column, a bracket inclined support is arranged between the overhanging end of the straight support bracket and the lower part of the concrete steel pipe column, a group of supporting beams are arranged on the straight support bracket along the transverse bridge direction and are respectively distributed on the overhanging part of the bracket straight support and the upper part of the straight support bracket between the steel pipe pile column and the pier body, a steel structure bent frame is arranged above the supporting beams along the bridge direction and comprises a middle bent frame and side bent frames, the middle bent frame and the side bent frames are all variable height bent frames, a bamboo plywood is arranged above the steel structure bent.

2. The continuous beam zero-number block modular bracket of claim 1, wherein: and angle steel is welded at the joint of the steel pipe column and the embedded steel plate.

3. The continuous beam zero-number block modular bracket of claim 1, wherein: the bottom welding of steel reinforced pipe pile stand and bracket directly props the junction has the bracket reinforcing plate.

4. The continuous beam zero-number block modular bracket of claim 1, wherein: the bracket inclined strut adopts a spiral pipe.

5. The continuous beam zero-number block modular bracket of claim 1, wherein: and adjacent steel bar pipe pile stand columns positioned on the same side of the pier body are fixed through steel pipe parallel connection.

6. The continuous beam zero-number block modular bracket of claim 1, wherein: the distance between adjacent side bent frames is 1/3-2/3 of the distance between middle bent frames.

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