CN109083023A - Using the continuous rigid frame bridge and its construction method of stiff skeleton - Google Patents

Using the continuous rigid frame bridge and its construction method of stiff skeleton Download PDF

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Publication number
CN109083023A
CN109083023A CN201811036967.XA CN201811036967A CN109083023A CN 109083023 A CN109083023 A CN 109083023A CN 201811036967 A CN201811036967 A CN 201811036967A CN 109083023 A CN109083023 A CN 109083023A
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China
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web
skeleton
boom
steel plate
pier
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CN201811036967.XA
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CN109083023B (en
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孙测世
周水兴
郑铁
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Chongqing Jiaotong University
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Chongqing Jiaotong University
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00Methods or apparatus specially adapted for erecting or assembling bridges
    • E01D21/10Cantilevered erection
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges

Abstract

The invention proposes a kind of continuous rigid frame bridges and its construction method using stiff skeleton, the continuous rigid frame bridge, including pier top and the beam body for being connected to pier top two sides, pier top and beam body are reinforced concrete structure, pier top stiff skeleton is embedded in pier top, beam body stiff skeleton is embedded in beam body, beam body stiff skeleton and pier top stiff skeleton are fixedly connected to form overall structure;When making beam body, Hanging Basket is carried out as support construction using beam body stiff skeleton and pours operation;The method have the benefit that: a kind of continuous rigid frame bridge and its construction method using stiff skeleton is proposed, the program can effectively improve construction efficiency, reduce operational risk and construction cost.

Description

Using the continuous rigid frame bridge and its construction method of stiff skeleton
Technical field
The present invention relates to a kind of bridge construction technology more particularly to a kind of continuous rigid frame bridge using stiff skeleton and its apply Work method.
Background technique
When building continuous rigid frame bridge, beam body generallys use rear-support hanging basket mode and carries out piecewise cantilever to be poured the prior art It builds.Since rear-support hanging basket and template system bearing capacity are limited, the length for individually pouring segment cannot be too long, and usually only 3~4 Rice, closure section generally only have 2 meters;It being poured segmental length by individually and is limited, beam body, which needs to be divided into many and pours segment, to be poured, Construction period is longer;In addition, when Hanging Basket is moved to another station from a station, since the anchoringwire of rear fulcrum is loose It opens, only left-hand thread device, there is risk of toppling in Hanging Basket motion process.It is more due to pouring segment quantity, correspondingly it is also required to Hanging Basket is repeatedly moved, operation is more troublesome, and construction cost is also higher, and the risk operated also can be with mobile time Several increases and improve.
Summary of the invention
For the problems in background technique, the invention proposes a kind of construction parties of continuous rigid frame bridge using stiff skeleton Method, the continuous rigid frame bridge include pier top and the beam body for being connected to pier top two sides, and pier top and beam body are reinforced concrete structure, Pier top stiff skeleton is embedded in the pier top, the steel reinforcement cage in the component and pier top of pier top stiff skeleton is staggered;It is described Beam body stiff skeleton is embedded in beam body, the inner end of beam body stiff skeleton and pier top stiff skeleton are fixedly connected to form whole knot The outer end of structure, beam body stiff skeleton extends at the closure section of beam body, the component and the intracorporal steel reinforcement cage of beam of beam body stiff skeleton It is staggered;Single beam body stiff skeleton is made of multiple skeleton segments, and multiple skeleton segments are along beam body axial alignment;
Single skeleton segment is made of two sets of support constructions, and single support construction that covers is by top boom, lower boom, interior web member, outer abdomen Bar, diagonal web member, the first main brace and the second main brace composition;Interior web member and outer web member are vertically arranged, and interior web member is more than outer web member Close to pier top;One end of top boom is connect with the upper end of interior web member, and the other end of top boom is connect with the upper end of outer web member;Lower edge One end of bar is connect with the lower end of interior web member, and the other end of lower boom is connect with the lower end of outer web member;Top boom and interior web member Junction forms inner contact, and the junction of top boom and outer web member forms outer contact, the junction of lower boom and interior web member The junction of inner contact under being formed, lower boom and outer web member forms lower outer contact;One end of diagonal web member is connect with upper inner contact, tiltedly The other end of web member is connect with lower outer contact;One end of first main brace and the middle part of top boom connect, the first main brace it is another One end is connect with the middle part of interior web member;One end of second main brace is connect with upper outer contact, and the other end of the second main brace is under Inner contact connection;;The axial direction of the top boom is axially parallel with beam body;The welding of the cross part of diagonal web member and the first main brace is solid Fixed, the cross part of diagonal web member and the second main brace is welded and fixed;
Single two sets of administrative support constructions of skeleton segment pass through more along beam body cross direction profiles, the top boom of two sets of support constructions A upper lateral ties plate is welded and fixed, and the lower boom of two sets of support constructions is welded and fixed by multiple lower lateral ties plates;
Three skeleton segments connect will be sequentially connected and be denoted as skeleton segment one, skeleton segment two and skeleton segment three respectively, if skeleton segment One near pier top, then the interior web member of skeleton segment two is the outer web member of skeleton segment one, and the outer web member of skeleton segment two is frame section Three interior web member;
Two beam body stiff skeleton symmetrical configurations;
Single top boom is made of two fashioned iron, and two fashioned iron are T shape along beam body cross direction profiles, the section of the fashioned iron, The top surface of two fashioned iron is welded and fixed by plurality of steel plates;
Single outer web member is made of two first steel plate strips, and two first steel plate strips are along beam body cross direction profiles, the first steel plate The big plane of item is parallel with the web plane of beam body, and two first steel plate strips are welded and fixed by plurality of steel plates;
Single interior web member is made of two second steel plate strips, and two second steel plate strips are along beam body cross direction profiles, the second steel plate The big plane of item is parallel with the web plane of beam body, and two second steel plate strips are welded and fixed by plurality of steel plates;
Single diagonal web member is made of two third steel plate strips, and two third steel plate strips are along beam body cross direction profiles, third steel plate The big plane of item is parallel with the web plane of beam body, and two third steel plate strips are welded and fixed by plurality of steel plates;
Single first main brace is made of two the 4th steel plate strips, and two the 4th steel plate strips are along beam body cross direction profiles, and the 4th The big plane of steel plate strip is parallel with the web plane of beam body, and two the 4th steel plate strips are welded and fixed by plurality of steel plates;
Single second main brace is made of two the 5th steel plate strips, and two the 5th steel plate strips are along beam body cross direction profiles, and the 5th The big plane of steel plate strip is parallel with the web plane of beam body, and two the 5th steel plate strips are welded and fixed by plurality of steel plates;
Single lower boom is wide opening U-shaped section fashioned iron;
Its innovation is: the construction method includes pier top production and beam body production, after pier top completes, then carries out beam System is made;
The pier top makes
After pier stud is made, pier top stiff skeleton and pier top steel reinforcement cage are built on pier stud, then make pier top template, Then pier top is poured out;
The beam body makes
For single beam body, in the way of from the inside to the outside, single beam body is divided into 1 number section, 2 number sections, 3 number sections ... n number section, multiple number sections and multiple skeleton segments correspond;After pier top completes, synchronizes and build in pier top two sides Then skeleton segment corresponding to two 1 number sections is laid with track on the top boom of the skeleton segment corresponding to two 1 number sections, then exists A Hanging Basket system is respectively built on track corresponding to two 1 number sections, is then gone out corresponding to 1 number section using Hanging Basket system building Then beam body steel reinforcement cage and template are synchronized and are poured to two 1 number sections;Then it synchronizes and builds corresponding to two 2 number sections Then skeleton segment is laid with track on the top boom of the skeleton segment corresponding to two 2 number sections, then moves two Hanging Basket systems respectively It moves on track corresponding to two 2 number sections and parked, then goes out beam body reinforcing bar corresponding to 2 number sections using Hanging Basket system building Then cage and template are synchronized and are poured to two 2 number sections;Then it synchronizes and builds skeleton segment corresponding to two 3 number sections, so It is laid with track on the top boom of the skeleton segment corresponding to two 3 number sections afterwards, two Hanging Basket systems are then respectively moved to two 3 It is on track corresponding to number section and parked, then go out beam body steel reinforcement cage and template corresponding to 3 number sections using Hanging Basket system building, Then it synchronizes and two 3 number sections is poured ... and then synchronize and build skeleton segment corresponding to two n number sections, then exist It is laid with track on the top boom of skeleton segment corresponding to two n number sections, two Hanging Basket systems are then respectively moved to two n number sections It is on corresponding track and parked, then go out beam body steel reinforcement cage and template corresponding to n number section using Hanging Basket system building, then It synchronizes and two n number sections is poured;
The Hanging Basket system includes running mechanism and template system;The running mechanism includes support frame and four travelings Wheel;In support frame bottom, four travelling wheels are in distributed rectangular for the travelling wheel setting, and two travelling wheels and skeleton segment in left side are left Rail contact on the top boom of side, two travelling wheels and the rail contact on top boom on the right side of skeleton segment, the support frame energy on right side It is axially moved by travelling wheel along track;Plane forms supporting surface where four travelling wheels, and the center of gravity of Hanging Basket system is in supporting surface On projection be located at the enclosed region of four travelling wheels middle part;The template system is lifted on the support frame by more sunpenders; Skeleton segment and beam body steel reinforcement cage are located in the inner cavity of template system;Positioned at the travelling wheel of supporting framing front end and positioned at support frame rear end Travelling wheel, the spacing distance in skeleton segment axial direction is denoted as B, the adjustable (skeleton segment corresponding to different number sections of the size of B Axial length have differences, this, which allows for the first main brace upper end and the spacing distance of the second main brace upper end, to become Change, therefore, the size of B will change with the size variation of A, when it is implemented, can pass through the phase of adjusting travelling wheel and support frame The big minor adjustment of B is realized to position);In single set support construction, the interval of the first main brace upper end and the second main brace upper end Distance is denoted as A, B=A;When Hanging Basket system is parked, the position of the travelling wheel of supporting framing front end is corresponding with the upper end of the second main brace, The position of the travelling wheel of support frame rear end is corresponding with the upper end of the first main brace.
The principle of the present invention is: why the prior art uses rear-support hanging basket form of construction work to carry out the beam to continuous rigid frame bridge Body is poured, and mainly consider the design feature of beam body: the beam body of continuous rigid frame bridge is usually reinforced concrete structure, is poured Before building segment forming, do not have bearing capacity, can only be turned the weight of young concrete using template system and rear-support hanging basket It moves on on the segment poured and the segment by having poured undertakes, therefore, rear-support hanging basket can only be anchored and is supported on It has poured on segment;The concrete that single segment needs to pour is heavier, and the bearing capacity and antidumping to template and Hanging Basket require just Higher, in order to reduce difficulty, the concrete segment length poured every time in the prior art usually only has 3~4m, for super-span It spends for continuous rigid frame bridge, it is necessary to which many segments, construction period are longer.
Concreting segmental length such as to be increased, it is necessary to change the stress condition of Hanging Basket, this requires in work progress In new support construction is provided for Hanging Basket, then inventor analyzes other existing bridges.Inventors have found that can be with The stiff skeleton construction method for using for reference existing concrete arch bridge, using stiff skeleton as bearing structure, before pouring segment molding, strength Property skeleton can be used as the support construction of Hanging Basket;When pouring, directly stiff skeleton can be cast in beam body, without removing, Operate more convenient, then inventor has made intensive studies with regard to application problem of the stiff skeleton on continuous rigid frame bridge.
Production it is new when pouring segment, first stiff skeleton can be built in the outer end of molded segment, then by Hanging Basket It is placed on exposed stiff skeleton.2 diagonal braces are set in stiff skeleton, the fulcrum of Hanging Basket is just corresponded with diagonal brace, Hanging Basket to the pressure of stiff skeleton diagonal brace be transmitted in the form of axle power it is molded pour on segment, mode of transfer force is simpler Single, more rationally, the structure of such Hanging Basket can greatly simplify, and weight mitigates significantly, be convenient for constructing operation and movement;In addition, For the center of gravity of Hanging Basket always in the middle part of supporting plane, tilting moment is not present in Hanging Basket, can thoroughly be solved risk of toppling, not needed to make " overturn-preventing " anchoring;In addition, stiff skeleton has biggish bearing capacity, therefore the length for pouring segment can be increased, reduce section Segment number.Not only the operation is more convenient for this method, and the efficiency of construction and safety can preferably be improved.
It will be apparent to those skilled in the art that other than beam body production, should also be made for complete continuous rigid frame bridge Make corresponding closure section and end bay Cast-in-Situ Segment, closure section, the length of closure section also available phase are made using the present invention program It should increase.
Based on aforementioned schemes, the invention also provides a kind of continuous rigid frame bridges using stiff skeleton, including pier top and company The beam body in pier top two sides is connect, pier top and beam body are reinforced concrete structure, and innovation is: being embedded with pier in the pier top Stiff skeleton is pushed up, the steel reinforcement cage in the component and pier top of pier top stiff skeleton is staggered;Beam body strength is embedded in the beam body Property skeleton, the inner end of beam body stiff skeleton and pier top stiff skeleton be fixedly connected to form overall structure, beam body stiff skeleton it is outer End extends at the closure section of beam body, and component and the intracorporal steel reinforcement cage of beam of beam body stiff skeleton are staggered;Single beam body strength Property skeleton is made of multiple skeleton segments, and multiple skeleton segments are along beam body axial alignment;
Single skeleton segment is made of two sets of support constructions, and single support construction that covers is by top boom, lower boom, interior web member, outer abdomen Bar, diagonal web member, the first main brace and the second main brace composition;Interior web member and outer web member are vertically arranged, and interior web member is more than outer web member Close to pier top;One end of top boom is connect with the upper end of interior web member, and the other end of top boom is connect with the upper end of outer web member;Lower edge One end of bar is connect with the lower end of interior web member, and the other end of lower boom is connect with the lower end of outer web member;Top boom and interior web member Junction forms inner contact, and the junction of top boom and outer web member forms outer contact, the junction of lower boom and interior web member The junction of inner contact under being formed, lower boom and outer web member forms lower outer contact;One end of diagonal web member is connect with upper inner contact, tiltedly The other end of web member is connect with lower outer contact;One end of first main brace and the middle part of top boom connect, the first main brace it is another One end is connect with the middle part of interior web member;One end of second main brace is connect with upper outer contact, and the other end of the second main brace is under Inner contact connection;The axial direction of the top boom is axially parallel with beam body;The cross part of diagonal web member and the first main brace is welded and fixed, The cross part of diagonal web member and the second main brace is welded and fixed;
Single two sets of administrative support constructions of skeleton segment pass through more along beam body cross direction profiles, the top boom of two sets of support constructions A upper lateral ties plate is welded and fixed, and the lower boom of two sets of support constructions is welded and fixed by multiple lower lateral ties plates;
Three skeleton segments connect will be sequentially connected and be denoted as skeleton segment one, skeleton segment two and skeleton segment three respectively, if skeleton segment One near pier top, then the interior web member of skeleton segment two is the outer web member of skeleton segment one, and the outer web member of skeleton segment two is frame section Three interior web member;
Two beam body stiff skeleton symmetrical configurations;
Single top boom is made of two fashioned iron, and two fashioned iron are T shape along beam body cross direction profiles, the section of the fashioned iron, The top surface of two fashioned iron is welded and fixed by plurality of steel plates;
Single outer web member is made of two first steel plate strips, and two first steel plate strips are along beam body cross direction profiles, the first steel plate The big plane of item is parallel with the web plane of beam body, and two first steel plate strips are welded and fixed by plurality of steel plates;
Single interior web member is made of two second steel plate strips, and two second steel plate strips are along beam body cross direction profiles, the second steel plate The big plane of item is parallel with the web plane of beam body, and two second steel plate strips are welded and fixed by plurality of steel plates;
Single diagonal web member is made of two third steel plate strips, and two third steel plate strips are along beam body cross direction profiles, third steel plate The big plane of item is parallel with the web plane of beam body, and two third steel plate strips are welded and fixed by plurality of steel plates;
Single first main brace is made of two the 4th steel plate strips, and two the 4th steel plate strips are along beam body cross direction profiles, and the 4th The big plane of steel plate strip is parallel with the web plane of beam body, and two the 4th steel plate strips are welded and fixed by plurality of steel plates;
Single second main brace is made of two the 5th steel plate strips, and two the 5th steel plate strips are along beam body cross direction profiles, and the 5th The big plane of steel plate strip is parallel with the web plane of beam body, and two the 5th steel plate strips are welded and fixed by plurality of steel plates;
Single lower boom is wide opening U-shaped section fashioned iron.
Based on the prior art it is found that usually requiring that corresponding prestressing tendon is arranged on continuous rigid frame bridge, in order to avoid strength Property skeleton is interfered with prestressing tendon, interior web member, outer web member, diagonal web member, the first main brace on stiff skeleton of the invention All use two steel plate strips with the second main brace constitute and two steel plate strips between by plurality of steel plates weld, accordingly Prestressing tendon can be laid between steel plate strip and be extended through the gap between (welding) steel plate, this just can be avoided stiffness bone Frame is interfered with prestressing tendon.
The method have the benefit that: propose a kind of continuous rigid frame bridge and its construction party using stiff skeleton Method, the program can effectively improve construction efficiency, reduce operational risk and construction cost.
Detailed description of the invention
Fig. 1, continuous rigid frame bridge skeleton structure schematic diagram of the invention;
Fig. 2, beam body stiff skeleton partial schematic diagram;
The structural schematic diagram of Fig. 3, single support construction;
Fig. 4, form of construction work schematic diagram of the invention;
Fig. 5, beam body stiff skeleton cross-sectional view;
Title corresponding to each label is respectively as follows: top boom 1, lower boom 2, interior web member 3, outer web member 4, diagonal web member in figure 5, the first main brace 6, the second main brace 7, running mechanism 8, sunpender 9, the operation platform 10 in template system, fashioned iron 11, wide opening U Tee section fashioned iron 12.
Specific embodiment
A kind of continuous rigid frame bridge using stiff skeleton, including pier top and the beam body for being connected to pier top two sides, pier top and beam Body is reinforced concrete structure, and innovation is: pier top stiff skeleton, the structure of pier top stiff skeleton are embedded in the pier top Part is staggered with the steel reinforcement cage in pier top;Be embedded with beam body stiff skeleton in the beam body, the inner end of beam body stiff skeleton with Pier top stiff skeleton is fixedly connected to form overall structure, and the outer end of beam body stiff skeleton extends at the closure section of beam body, beam body The component of stiff skeleton is staggered with the intracorporal steel reinforcement cage of beam;Single beam body stiff skeleton is made of multiple skeleton segments, multiple Skeleton segment is along beam body axial alignment;
Single skeleton segment is made of two sets of support constructions, and single support construction that covers is by top boom, lower boom, interior web member, outer abdomen Bar, diagonal web member, the first main brace and the second main brace composition;Interior web member and outer web member are vertically arranged, and interior web member is more than outer web member Close to pier top;One end of top boom is connect with the upper end of interior web member, and the other end of top boom is connect with the upper end of outer web member;Lower edge One end of bar is connect with the lower end of interior web member, and the other end of lower boom is connect with the lower end of outer web member;Top boom and interior web member Junction forms inner contact, and the junction of top boom and outer web member forms outer contact, the junction of lower boom and interior web member The junction of inner contact under being formed, lower boom and outer web member forms lower outer contact;One end of diagonal web member is connect with upper inner contact, tiltedly The other end of web member is connect with lower outer contact;One end of first main brace and the middle part of top boom connect, the first main brace it is another One end is connect with the middle part of interior web member;One end of second main brace is connect with upper outer contact, and the other end of the second main brace is under Inner contact connection;The axial direction of the top boom is axially parallel with beam body;The cross part of diagonal web member and the first main brace is welded and fixed, The cross part of diagonal web member and the second main brace is welded and fixed;
Single two sets of administrative support constructions of skeleton segment pass through more along beam body cross direction profiles, the top boom of two sets of support constructions A upper lateral ties plate is welded and fixed, and the lower boom of two sets of support constructions is welded and fixed by multiple lower lateral ties plates;
Three skeleton segments connect will be sequentially connected and be denoted as skeleton segment one, skeleton segment two and skeleton segment three respectively, if skeleton segment One near pier top, then the interior web member of skeleton segment two is the outer web member of skeleton segment one, and the outer web member of skeleton segment two is frame section Three interior web member;
Two beam body stiff skeleton symmetrical configurations;
Single top boom is made of two fashioned iron, and two fashioned iron are T shape along beam body cross direction profiles, the section of the fashioned iron, The top surface of two fashioned iron is welded and fixed by plurality of steel plates;
Single outer web member is made of two first steel plate strips, and two first steel plate strips are along beam body cross direction profiles, the first steel plate The big plane of item is parallel with the web plane of beam body, and two first steel plate strips are welded and fixed by plurality of steel plates;
Single interior web member is made of two second steel plate strips, and two second steel plate strips are along beam body cross direction profiles, the second steel plate The big plane of item is parallel with the web plane of beam body, and two second steel plate strips are welded and fixed by plurality of steel plates;
Single diagonal web member is made of two third steel plate strips, and two third steel plate strips are along beam body cross direction profiles, third steel plate The big plane of item is parallel with the web plane of beam body, and two third steel plate strips are welded and fixed by plurality of steel plates;
Single first main brace is made of two the 4th steel plate strips, and two the 4th steel plate strips are along beam body cross direction profiles, and the 4th The big plane of steel plate strip is parallel with the web plane of beam body, and two the 4th steel plate strips are welded and fixed by plurality of steel plates;
Single second main brace is made of two the 5th steel plate strips, and two the 5th steel plate strips are along beam body cross direction profiles, and the 5th The big plane of steel plate strip is parallel with the web plane of beam body, and two the 5th steel plate strips are welded and fixed by plurality of steel plates;
Single lower boom is wide opening U-shaped section fashioned iron.
A kind of construction method of the continuous rigid frame bridge using stiff skeleton, the continuous rigid frame bridge include pier top and are connected to The beam body of pier top two sides, pier top and beam body are reinforced concrete structure, and pier top stiff skeleton, pier top are embedded in the pier top Steel reinforcement cage in the component and pier top of stiff skeleton is staggered;Beam body stiff skeleton, beam body stiffness are embedded in the beam body The inner end of skeleton and pier top stiff skeleton are fixedly connected to form overall structure, and the outer end of beam body stiff skeleton extends to the conjunction of beam body At imperial section, component and the intracorporal steel reinforcement cage of beam of beam body stiff skeleton are staggered;Single beam body stiff skeleton is by multiple skeletons Duan Zucheng, multiple skeleton segments are along beam body axial alignment;
Single skeleton segment is made of two sets of support constructions, and single support construction that covers is by top boom, lower boom, interior web member, outer abdomen Bar, diagonal web member, the first main brace and the second main brace composition;Interior web member and outer web member are vertically arranged, and interior web member is more than outer web member Close to pier top;One end of top boom is connect with the upper end of interior web member, and the other end of top boom is connect with the upper end of outer web member;Lower edge One end of bar is connect with the lower end of interior web member, and the other end of lower boom is connect with the lower end of outer web member;Top boom and interior web member Junction forms inner contact, and the junction of top boom and outer web member forms outer contact, the junction of lower boom and interior web member The junction of inner contact under being formed, lower boom and outer web member forms lower outer contact;One end of diagonal web member is connect with upper inner contact, tiltedly The other end of web member is connect with lower outer contact;One end of first main brace and the middle part of top boom connect, the first main brace it is another One end is connect with the middle part of interior web member;One end of second main brace is connect with upper outer contact, and the other end of the second main brace is under Inner contact connection;;The axial direction of the top boom is axially parallel with beam body;The welding of the cross part of diagonal web member and the first main brace is solid Fixed, the cross part of diagonal web member and the second main brace is welded and fixed;
Single two sets of administrative support constructions of skeleton segment pass through more along beam body cross direction profiles, the top boom of two sets of support constructions A upper lateral ties plate is welded and fixed, and the lower boom of two sets of support constructions is welded and fixed by multiple lower lateral ties plates;
Three skeleton segments connect will be sequentially connected and be denoted as skeleton segment one, skeleton segment two and skeleton segment three respectively, if skeleton segment One near pier top, then the interior web member of skeleton segment two is the outer web member of skeleton segment one, and the outer web member of skeleton segment two is frame section Three interior web member;
Two beam body stiff skeleton symmetrical configurations;
Single top boom is made of two fashioned iron, and two fashioned iron are T shape along beam body cross direction profiles, the section of the fashioned iron, The top surface of two fashioned iron is welded and fixed by plurality of steel plates;
Single outer web member is made of two first steel plate strips, and two first steel plate strips are along beam body cross direction profiles, the first steel plate The big plane of item is parallel with the web plane of beam body, and two first steel plate strips are welded and fixed by plurality of steel plates;
Single interior web member is made of two second steel plate strips, and two second steel plate strips are along beam body cross direction profiles, the second steel plate The big plane of item is parallel with the web plane of beam body, and two second steel plate strips are welded and fixed by plurality of steel plates;
Single diagonal web member is made of two third steel plate strips, and two third steel plate strips are along beam body cross direction profiles, third steel plate The big plane of item is parallel with the web plane of beam body, and two third steel plate strips are welded and fixed by plurality of steel plates;
Single first main brace is made of two the 4th steel plate strips, and two the 4th steel plate strips are along beam body cross direction profiles, and the 4th The big plane of steel plate strip is parallel with the web plane of beam body, and two the 4th steel plate strips are welded and fixed by plurality of steel plates;
Single second main brace is made of two the 5th steel plate strips, and two the 5th steel plate strips are along beam body cross direction profiles, and the 5th The big plane of steel plate strip is parallel with the web plane of beam body, and two the 5th steel plate strips are welded and fixed by plurality of steel plates;
Single lower boom is wide opening U-shaped section fashioned iron;
Its innovation is: the construction method includes pier top production and beam body production, after pier top completes, then carries out beam System is made;
The pier top makes
After pier stud is made, pier top stiff skeleton and pier top steel reinforcement cage are built on pier stud, then make pier top template, Then pier top is poured out;
The beam body makes
For single beam body, in the way of from the inside to the outside, single beam body is divided into 1 number section, 2 number sections, 3 number sections ... n number section, multiple number sections and multiple skeleton segments correspond;After pier top completes, synchronizes and build in pier top two sides Then skeleton segment corresponding to two 1 number sections is laid with track on the top boom of the skeleton segment corresponding to two 1 number sections, then exists A Hanging Basket system is respectively built on track corresponding to two 1 number sections, is then gone out corresponding to 1 number section using Hanging Basket system building Then beam body steel reinforcement cage and template are synchronized and are poured to two 1 number sections;Then it synchronizes and builds corresponding to two 2 number sections Then skeleton segment is laid with track on the top boom of the skeleton segment corresponding to two 2 number sections, then moves two Hanging Basket systems respectively It moves on track corresponding to two 2 number sections and parked, then goes out beam body reinforcing bar corresponding to 2 number sections using Hanging Basket system building Then cage and template are synchronized and are poured to two 2 number sections;Then it synchronizes and builds skeleton segment corresponding to two 3 number sections, so It is laid with track on the top boom of the skeleton segment corresponding to two 3 number sections afterwards, two Hanging Basket systems are then respectively moved to two 3 It is on track corresponding to number section and parked, then go out beam body steel reinforcement cage and template corresponding to 3 number sections using Hanging Basket system building, Then it synchronizes and two 3 number sections is poured ... and then synchronize and build skeleton segment corresponding to two n number sections, then exist It is laid with track on the top boom of skeleton segment corresponding to two n number sections, two Hanging Basket systems are then respectively moved to two n number sections It is on corresponding track and parked, then go out beam body steel reinforcement cage and template corresponding to n number section using Hanging Basket system building, then It synchronizes and two n number sections is poured;
The Hanging Basket system includes running mechanism and template system;The running mechanism includes support frame and four travelings Wheel;In support frame bottom, four travelling wheels are in distributed rectangular for the travelling wheel setting, and two travelling wheels and skeleton segment in left side are left Rail contact on the top boom of side, two travelling wheels and the rail contact on top boom on the right side of skeleton segment, the support frame energy on right side It is axially moved by travelling wheel along track;Plane forms supporting surface where four travelling wheels, and the center of gravity of Hanging Basket system is in supporting surface On projection be located at the enclosed region of four travelling wheels middle part;The template system is lifted on the support frame by more sunpenders; Skeleton segment and beam body steel reinforcement cage are located in the inner cavity of template system;Positioned at the travelling wheel of supporting framing front end and positioned at support frame rear end Travelling wheel, the spacing distance in skeleton segment axial direction is denoted as B, and the size of B is adjustable;In single set support construction, first is main The spacing distance of diagonal brace upper end and the second main brace upper end is denoted as A, B=A;When Hanging Basket system is parked, the traveling of supporting framing front end The position of wheel is corresponding with the upper end of the second main brace, the upper end pair of the position of the travelling wheel of support frame rear end and the first main brace It answers.

Claims (2)

1. a kind of continuous rigid frame bridge using stiff skeleton, including pier top and the beam body for being connected to pier top two sides, pier top and beam body It is reinforced concrete structure, it is characterised in that: pier top stiff skeleton, the component of pier top stiff skeleton are embedded in the pier top It is staggered with the steel reinforcement cage in pier top;Beam body stiff skeleton, the inner end of beam body stiff skeleton and pier are embedded in the beam body Top stiff skeleton is fixedly connected to form overall structure, and the outer end of beam body stiff skeleton extends at the closure section of beam body, beam body strength The component of property skeleton is staggered with the intracorporal steel reinforcement cage of beam;Single beam body stiff skeleton is made of multiple skeleton segments, multiple bones Frame section is along beam body axial alignment;
Single skeleton segment is made of two sets support constructions, and single support construction that covers is by top boom, lower boom, interior web member, outer web member, oblique Web member, the first main brace and the second main brace composition;Interior web member and outer web member are vertically arranged, and interior web member is than outer web member closer to pier Top;One end of top boom is connect with the upper end of interior web member, and the other end of top boom is connect with the upper end of outer web member;The one of lower boom End is connect with the lower end of interior web member, and the other end of lower boom is connect with the lower end of outer web member;The junction of top boom and interior web member The junction of inner contact in formation, top boom and outer web member forms outer contact, and the junction of lower boom and interior web member is formed down The junction of inner contact, lower boom and outer web member forms lower outer contact;One end of diagonal web member is connect with upper inner contact, diagonal web member The other end is connect with lower outer contact;One end of first main brace and the middle part of top boom connect, the other end of the first main brace with The middle part of interior web member connects;One end of second main brace is connect with upper outer contact, the other end of the second main brace and lower inner contact Connection;The axial direction of the top boom is axially parallel with beam body;The cross part of diagonal web member and the first main brace is welded and fixed, diagonal web member It is welded and fixed with the cross part of the second main brace;
Single two sets of administrative support constructions of skeleton segment pass through on multiple along beam body cross direction profiles, the top boom of two sets of support constructions Lateral ties plate is welded and fixed, and the lower boom of two sets of support constructions is welded and fixed by multiple lower lateral ties plates;
Three skeleton segments connect will be sequentially connected and be denoted as skeleton segment one, skeleton segment two and skeleton segment three respectively, if skeleton segment one is most Close to pier top, then the interior web member of skeleton segment two is the outer web member of skeleton segment one, and the outer web member of skeleton segment two is frame section three Interior web member;
Two beam body stiff skeleton symmetrical configurations;
Single top boom is made of two fashioned iron, and for two fashioned iron along beam body cross direction profiles, the section of the fashioned iron is T shape, and two The top surface of fashioned iron is welded and fixed by plurality of steel plates;
Single outer web member is made of two first steel plate strips, two first steel plate strips along beam body cross direction profiles, the first steel plate strip Big plane is parallel with the web plane of beam body, and two first steel plate strips are welded and fixed by plurality of steel plates;
Single interior web member is made of two second steel plate strips, two second steel plate strips along beam body cross direction profiles, the second steel plate strip Big plane is parallel with the web plane of beam body, and two second steel plate strips are welded and fixed by plurality of steel plates;
Single diagonal web member is made of two third steel plate strips, two third steel plate strips along beam body cross direction profiles, third steel plate strip Big plane is parallel with the web plane of beam body, and two third steel plate strips are welded and fixed by plurality of steel plates;
Single first main brace is made of two the 4th steel plate strips, and two the 4th steel plate strips are along beam body cross direction profiles, the 4th steel plate The big plane of item is parallel with the web plane of beam body, and two the 4th steel plate strips are welded and fixed by plurality of steel plates;
Single second main brace is made of two the 5th steel plate strips, and two the 5th steel plate strips are along beam body cross direction profiles, the 5th steel plate The big plane of item is parallel with the web plane of beam body, and two the 5th steel plate strips are welded and fixed by plurality of steel plates;
Single lower boom is wide opening U-shaped section fashioned iron.
2. a kind of construction method of the continuous rigid frame bridge using stiff skeleton, the continuous rigid frame bridge includes pier top and is connected to pier The beam body of two sides is pushed up, pier top and beam body are reinforced concrete structure, and pier top stiff skeleton, pier top strength are embedded in the pier top Steel reinforcement cage in the component and pier top of property skeleton is staggered;Beam body stiff skeleton, beam body stiffness bone are embedded in the beam body The inner end of frame and pier top stiff skeleton are fixedly connected to form overall structure, and the outer end of beam body stiff skeleton extends to the closure of beam body At section, component and the intracorporal steel reinforcement cage of beam of beam body stiff skeleton are staggered;Single beam body stiff skeleton is by multiple skeleton segments Composition, multiple skeleton segments are along beam body axial alignment;
Single skeleton segment is made of two sets support constructions, and single support construction that covers is by top boom, lower boom, interior web member, outer web member, oblique Web member, the first main brace and the second main brace composition;Interior web member and outer web member are vertically arranged, and interior web member is than outer web member closer to pier Top;One end of top boom is connect with the upper end of interior web member, and the other end of top boom is connect with the upper end of outer web member;The one of lower boom End is connect with the lower end of interior web member, and the other end of lower boom is connect with the lower end of outer web member;The junction of top boom and interior web member The junction of inner contact in formation, top boom and outer web member forms outer contact, and the junction of lower boom and interior web member is formed down The junction of inner contact, lower boom and outer web member forms lower outer contact;One end of diagonal web member is connect with upper inner contact, diagonal web member The other end is connect with lower outer contact;One end of first main brace and the middle part of top boom connect, the other end of the first main brace with The middle part of interior web member connects;One end of second main brace is connect with upper outer contact, the other end of the second main brace and lower inner contact Connection;;The axial direction of the top boom is axially parallel with beam body;The cross part of diagonal web member and the first main brace is welded and fixed, oblique abdomen The cross part of bar and the second main brace is welded and fixed;
Single two sets of administrative support constructions of skeleton segment pass through on multiple along beam body cross direction profiles, the top boom of two sets of support constructions Lateral ties plate is welded and fixed, and the lower boom of two sets of support constructions is welded and fixed by multiple lower lateral ties plates;
Three skeleton segments connect will be sequentially connected and be denoted as skeleton segment one, skeleton segment two and skeleton segment three respectively, if skeleton segment one is most Close to pier top, then the interior web member of skeleton segment two is the outer web member of skeleton segment one, and the outer web member of skeleton segment two is frame section three Interior web member;
Two beam body stiff skeleton symmetrical configurations;
Single top boom is made of two fashioned iron, and for two fashioned iron along beam body cross direction profiles, the section of the fashioned iron is T shape, and two The top surface of fashioned iron is welded and fixed by plurality of steel plates;
Single outer web member is made of two first steel plate strips, two first steel plate strips along beam body cross direction profiles, the first steel plate strip Big plane is parallel with the web plane of beam body, and two first steel plate strips are welded and fixed by plurality of steel plates;
Single interior web member is made of two second steel plate strips, two second steel plate strips along beam body cross direction profiles, the second steel plate strip Big plane is parallel with the web plane of beam body, and two second steel plate strips are welded and fixed by plurality of steel plates;
Single diagonal web member is made of two third steel plate strips, two third steel plate strips along beam body cross direction profiles, third steel plate strip Big plane is parallel with the web plane of beam body, and two third steel plate strips are welded and fixed by plurality of steel plates;
Single first main brace is made of two the 4th steel plate strips, and two the 4th steel plate strips are along beam body cross direction profiles, the 4th steel plate The big plane of item is parallel with the web plane of beam body, and two the 4th steel plate strips are welded and fixed by plurality of steel plates;
Single second main brace is made of two the 5th steel plate strips, and two the 5th steel plate strips are along beam body cross direction profiles, the 5th steel plate The big plane of item is parallel with the web plane of beam body, and two the 5th steel plate strips are welded and fixed by plurality of steel plates;
Single lower boom is wide opening U-shaped section fashioned iron;
It is characterized by: the construction method includes pier top production and beam body production, after pier top completes, then beam body system is carried out Make;
The pier top makes
After pier stud is made, pier top stiff skeleton and pier top steel reinforcement cage are built on pier stud, then make pier top template, then Pour out pier top;
The beam body makes
For single beam body, in the way of from the inside to the outside, single beam body is divided into 1 number section, 2 number sections, 3 number section ... n Section, multiple number sections and multiple skeleton segments correspond;After pier top completes, is synchronized in pier top two sides and build two 1 number sections Then corresponding skeleton segment is laid with track on the top boom of the skeleton segment corresponding to two 1 number sections, then in two 1 number sections A Hanging Basket system is respectively built on corresponding track, then goes out beam body reinforcing bar corresponding to 1 number section using Hanging Basket system building Then cage and template are synchronized and are poured to two 1 number sections;Then it synchronizes and builds skeleton segment corresponding to two 2 number sections, so It is laid with track on the top boom of the skeleton segment corresponding to two 2 number sections afterwards, two Hanging Basket systems are then respectively moved to two 2 It is on track corresponding to number section and parked, then go out beam body steel reinforcement cage and template corresponding to 2 number sections using Hanging Basket system building, Then it synchronizes and two 2 number sections is poured;Then it synchronizes and builds skeleton segment corresponding to two 3 number sections, then at two 3 Track is laid on the top boom of skeleton segment corresponding to number section, it is right that two Hanging Basket systems are then respectively moved to two 3 number sections institutes It is on the track answered and parked, then go out beam body steel reinforcement cage and template corresponding to 3 number sections using Hanging Basket system building, then synchronizes Two 3 number sections are poured ... and then synchronized and build skeleton segment corresponding to two n number sections, then at two No. n It is laid with track on the top boom of skeleton segment corresponding to section, then two Hanging Basket systems are respectively moved to corresponding to two n number sections Track on and it is parked, then go out beam body steel reinforcement cage and template corresponding to n number section using Hanging Basket system building, then synchronize pair Two n number sections are poured;
The Hanging Basket system includes running mechanism and template system;The running mechanism includes support frame and four travelling wheels;Institute Travelling wheel setting is stated in support frame bottom, four travelling wheels are in distributed rectangular, on the left of two travelling wheels and skeleton segment in left side on Rail contact on chord member, two travelling wheels and the rail contact on top boom on the right side of skeleton segment on right side, support frame can pass through Travelling wheel is axially moved along track;Planes where four travelling wheels form supporting surfaces, and the center of gravity of Hanging Basket system is on the support surface Projection is located at the middle part in the enclosed region of four travelling wheels;The template system is lifted on the support frame by more sunpenders;Skeleton Section and beam body steel reinforcement cage are located in the inner cavity of template system;Positioned at the travelling wheel of supporting framing front end and walking positioned at support frame rear end Row wheel, the spacing distance in skeleton segment axial direction are denoted as B, and the size of B is adjustable;In single set support construction, the first main brace The spacing distance of upper end and the second main brace upper end is denoted as A, B=A;When Hanging Basket system is parked, the travelling wheel of supporting framing front end Position is corresponding with the upper end of the second main brace, and the position of the travelling wheel of support frame rear end is corresponding with the upper end of the first main brace.
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