CN204417986U - Rainbow beam-arch structure - Google Patents

Abstract

Rainbow beam-arch structure, is derived from the original creation of Song Huayizuo China, has " Hong Liang " prototype structure of excellent specific property.By analytic structure mechanism and adjusted and controlled broken line bulk-mode, crack structural stress and the two large limitation across footpath.Merge modern building material and component shape system, implement two substantially to change: one is straighten the component form change that beam shape longeron is curved beam shape arch rib, two is that collection is vertical, cross member functional configuration is changed in the member function of one, create " rib shoulder " and " end shoulder " two functional configuration and " combination of rib shoulder ", " combination of end shoulder ", " both shoulders combination " three kinds of integrated modes, found butt-joint process and utilization " in opposite directions lifting docking closure " voluntarily, " unidirectional traction docks closure voluntarily ", " runner jacking docks closure voluntarily " three Intentionality embodiments, facilitate in opposite directions across joint intersection built, mutual support is accurately joined the two sections of a bridge, etc arching.Optimize existing arch structure construction process, there is acceleration construction speed, promote effect of operational security.

Description

Rainbow beam-arch structure

Art

The timber arch bridge prototype structure of this project to the original creation of Song dynasty famous painting " Riverside Scene at the Pure Moon Festival " interior China carries out transformation and innovation, for modern arch bridge and arch structure building provide novel, unique constructing technology.

Background technology

One, the Song dynasty " Hong Liang " prototype structure

The Northern Song Dynasty, artist Zhang Zeduan accurately painted this timber arch bridge of record at " Riverside Scene at the Pure Moon Festival " (note 1)---" Hong Liang " (general name " Hongqiao " is also known as " Hong Liang "---note 2), having originality and the excellent specific property of structure technology, is the outstanding example of Ancient Times in China bridge construction achievement.But there is very large limitation in its prototype structure, serious its modern Application of restriction.

To the transformation and innovation of " Hong Liang " prototype structure, by the parsing to Structure Mechanism, crack the limitation of its structure technology.

Fig. 1 is " Riverside Scene at the Pure Moon Festival " " Hong Liang " prototype structure sketch: be made up of longitudinal and transverse two class main members, and with one group of longeron and frame, the crossbeam component units on this longeron is across joint, combines (Fig. 2) across joint is staggered in opposite directions by many groups.Interted across joint by the intersection of longeron, extended in opposite directions, the reciprocal interlocking support of longitudinal and transverse beam, reaches the complete and stable of structure; Component " passing through mutually in length and breadth " formed the arch broken line body of structure and corresponding rise thereof with across footpath, be configured to the make being different from existing arch structure.

Two, the large limitation of prototype structure two.

1, structure is across the limitation in footpath.

Fig. 3 intuitively shows prototype structure across the limitation on footpath.Be that figure clearly shows, along with the increase across joint, the structure level elevation angle increases progressively successively, when ratio of rise to span reach or close to 1: 2 ratio, no longer strengthen with increasing across joint across footpath.The intrinsic shape system of this structure, forms the obstacle being difficult to go beyond to construction large span arch bridge and other Large-scale Arch structural construction.

2, the limitation of structural stress.

In " Hong Liang " prototype structure, longeron as main supporting member is straight beam, and along with longeron slenderness ratio and structure synchronously increase across footpath, longeron flexural force is apart from larger, weaken the bearing capacity of arch broken line body prototype structure, be difficult to the demand meeting Modern Traffic, building.

In view of the two large limitation of " Hong Liang " prototype structure, although wood arch " Hong Liang " originality in Bridges in Our Country History of Science & Technology has been affirmed by bridge educational circles, but from new China in the early days of foundation (note 3) excavated so far over 60 years from " Riverside Scene at the Pure Moon Festival ", except some tourist attraction, movies-making base are imitated as sight spot, this unique structure technology fails to obtain modern Application.

Utility model content

Create rainbow beam-arch structure

One, crack the intrinsic shape system of " Hong Liang " prototype structure broken line body.

1, adjusted and controlled broken line body angle.

From Fig. 4 ~ A, because of longitudinal and transverse beam " passing through mutually ", then making to wind up between longeron and lower edge stringer axis forms angle Q, and intersection point is positioned at the E point at the middle part of adjacent two crossbeam axial connecting lines.In figure, F is crossbeam centre point, and C is the vertical point of F point and stringer axis, and ∠ FEC is Q/2.Because multistage is across the accumulation of joint angle, define the broken line body structure with certain camber.

Angle formulae (one)

$\mathrm{Tan}\frac{Q}{2}=\frac{\mathrm{FC}}{\mathrm{EC}}=\frac{\frac{D1}{2}+\frac{D2}{2}}{L}$

In formula: D1 is longeron diameter, D2 is crossbeam diameter, and L is that longeron 1/4th is long.

Shown in Fig. 4 ~ B, cut off the longitudinal and transverse beam of above-mentioned graphic node binding site, in longeron length, when longitudinal and transverse beam diameter is constant, longitudinal and transverse beam cuts off darker, and between upper and lower string longeron, angle is just less, and structure camber is healed and become smooth.It cuts off the numerical relation of the degree of depth and angle, can derive from formula (one):

Angle formulae (two)

$\mathrm{Tan}\frac{Q}{2}=\frac{\mathrm{FC}}{\mathrm{EC}}=\frac{(\frac{D1}{2}-h1)+(\frac{D2}{2}-h2)}{L}=\frac{D1+D2-2(h1+h2)}{2L}$

In formula: h1 is that longeron cuts off value, h2 is that crossbeam cuts off value

2, eliminate broken line body angle---deduce parallel type structure.

If structure longitudinal angle is zero, $\mathrm{Tan}\frac{Q}{2}=\frac{D1+D2-2(h1+h2)}{2L}=0,$

Then D1+D2-2 (h1+h2)=0,2 (h1+h2)=D1+D2,

Formula (three) $h1+h2=\frac{D1+D2}{2}$

Formula (three) show: equal the superposition of longitudinal and transverse beam diameter partly when longitudinal and transverse beam cuts off sum, structure longitudinal angle is eliminated.Fig. 5 (in figure, longitudinal and transverse beam is the lumps of wood) is parallel type structure schematic diagram, realizes the breakthrough of the intrinsic shape of " Hong Liang " prototype structure.

Two, two changes substantially that prototype structure " is remoulded oneself thoroughly ".

Merge that modern plasticity is large, high strength building materials, substantially change, make agent structure become novel arch structure for two that implement " Hong Liang " prototype structure.

1, component form is changed: straightening beam shape longeron is curved beam shape arch rib.

" Hong Liang ", though parallel type structure constructs easy, loses the advantage of prototype structure at mechanics and economic performance.First term reform measure is: being changed by the straight beam shape longeron of parallel type structure is the curved beam shape arch rib (Fig. 6 ~ A) that fully can transmit axial force, forms the grown form (Fig. 6 ~ B, C) of arch structure.

2, member function is changed: " unifying in length and breadth, two all over the body ".

The crossbeam arranged separately in structure is eliminated in the key change of prototype structure, thus collects longitudinal and transverse member function and be configured in one, melts longitudinal and transverse structure function.Allowing across the staggered in opposite directions arch rib of joint, by intersecting built, mutually support, neat face contact closure arching, thoroughly removing because longitudinal and transverse component " passes through " limit structural rational deployment mutually.

Twin spans joint is the essential structure of novel arch structure, and following function constructs, all with twin spans joint pattern architecture.

" rib arm " (Fig. 7) is in opposite directions across saving the shaft of rib section be overlapping.Divide " single armed " and " both arms ", termination is " end face ", and root is established " shelves face "; Join the two sections of a bridge, etc across joint " end face " and " shelves face " contact in opposite directions.

" combination of rib shoulder " (Fig. 8).Act on crossbeam support function, arrange just as shaft of rib shoulder in rib arm " shelves face " bottom, in order to support, facilitate in opposite directions across the functional configuration of the staggered closure of joint, name " rib shoulder "; All arching is combined with " rib shoulder " in opposite directions across joint.。

" combination of end shoulder " (Fig. 9).Intersect built mechanism according to structure, arrange at rib arm " end face " top just as with in opposite directions across save " photo frame of helping to shoulder heavy thing ", facilitate in opposite directions across the functional configuration of the staggered closure of joint, name " end is takeed on "; All arching is combined with " end shoulder " in opposite directions across joint.

" both shoulders combination ".In opposite directions across in joint, collecting the rib arm (Figure 10 single armed body, Figure 11 both arms body) that " rib shoulder " " end shoulder " two " shoulder " is configured in one, combining arching with not establishing the arch rib of functional configuration in opposite directions.Both arms body " both shoulders combination " optimizes the intensity of functional configuration, and an only node.

In view of this arch structure technology, be derived from Song dynasty " Hong Liang " prototype structure, and its application is not limited to build a bridge.In order to distinguish over existing arch structure technology, hold concurrently in honour of these innovation and creation in ancient times, special called after " rainbow beam-arch structure ".

Rainbow beam-arch structure, the closure optimizing existing arch structure building becomes arch process, has acceleration construction speed, promotes effect of operational security.

Note Song 1:() Zhang Zeduan " Riverside Scene at the Pure Moon Festival ", be embodied in (clearly) " the precious book box three of Shiqu is compiled ", existing Palace Museum.

Note 2:

(Song) king Provision it " the Shengshiu River swallow talks record. thing will ": " Nan Jie mountain, the west of a city, Qingzhou, in pass through foreign-water, be limited to two cities, time first, planting post across water is bridge, and between July often to six, scenery with hills and waters rises suddenly and sharply, water and post bucket, and the normal bad bridge of rate, trouble is thought in state.In bright road, Xia Yinggong keeps green grass or young crops, think to have with brave it, the useless soldier in firm city can be obtained, have intelligence to think.Folded megalith its bank solid, gets that large wood is tens of to be passed through mutually, frame for flying bridge, without post.So far in more than 50 years, bridge is not bad.During celebrating is gone through, Chen Xiliang keeps place, and Yi Bianqiao is bad repeatly, and rate tastes damage official boat, victimization, is that life method Qingzhou flies bridge.So far all fly bridge along Kaifeng, be the profit of contact, custom says Hongqiao.”

(Song) senior statesman in the Meng " Menghua, Tokyo is recorded. river course ": " from eastern water valve outer seven li to outside west gate, river has bridge 13.From eastern water valve, say Hongqiao, its bridge, without post, all with the empty frame of huge wood, is decorated with Dan Wo, as if Changhong.Its upper and lower Tu Qiao is also like this.”

(Song) Zhou Bangyan " Kaifeng is all composed ": " across Hong Liang to relate to except disease, arrange good wood and feel apprehensive with peace "

Note 3: " having been fallen into oblivion more than 900 year " Tang Huancheng---" New Observer " magazine the 24th phase in 1954

Accompanying drawing explanation

Below in conjunction with accompanying drawing, " rainbow beam-arch structure " is described further.

Fig. 1 is that Song draws " Riverside Scene at the Pure Moon Festival " " Hong Liang " prototype structure elevational schematic view.1. longerons, 2. crossbeam, 3. railing, the 4. ornamental column in figure, 5. Bei Anqiao Xia Qianfu passageway, 6. river steamer.

Fig. 2 is " Hong Liang " prototype structure simple structure schematic diagram.In figure, A. unit is across joint, and B. twin spans saves, and C. tri-is across joint, and D. multispan saves, I. elevation, II. phantom drawing, 1. longeron, 2. crossbeam.

Fig. 3 is that " Hong Liang " prototype structure limits to schematic diagram across footpath.Display longeron length, across joint number, " pass through " because of component the angle that formed in length and breadth mutually and change across the camber between footpath, rise, in figure, one ~ ten code is numbered across joint number, 1. longeron, 2. crossbeam.

Fig. 4 is prototype structure local structure elevation.A is that component is without the structure chart cut off, B is the structure chart through cuing off, in figure, E point is upper and lower string longeron centerlines plotted point, F is crossbeam centre point, C is the vertical point of the crossbeam center of circle and longeron center line, and angle Q/2 is the angle of longeron center line EC and crossbeam circle center line connecting EF, 1. longeron, 2. crossbeam for longeron diameter, for crossbeam diameter, h1, h2 are that longitudinal and transverse beam cuts off value, and L is that 1/4th longerons are long.

Fig. 5 is that " Hong Liang " develops into the organigram of parallel type structure by broken polygonal line body.A. longitudinal and transverse beam elevation, B. structural facades figure, C. structural perspective, 1. longerons, 2. crossbeam in figure, the height of the longitudinal and transverse beam of D1, D2., D1/2 and D2/2 is component and cuts off value, and I-I, II-II are longitudinal and transverse beam lateral view.

Fig. 6 is that " Hong Liang " develops into the organigram of curved beam shape arch structure by straight beam parallel type structure.A. longitudinal and transverse beam elevation, B. structural facades figure, C. structural perspective, 1. arch ribs, 2. crossbeam in figure, D1. arch rib is high, and D2. crossbeam is high, D1/2 and D2/2 is component and cuts off value, and I-I, II-II are longitudinal and transverse member side view.

Fig. 7 is " rib arm " constructional drawing.A. single armed body phantom drawing, B. both arms body phantom drawing, C. both arms body top view, 1. left arch ribs, 2. right arch rib in figure, L. rib arm lengths, a. end face, b. shelves face.

Fig. 8 is " rib shoulder " constructional drawing.A. phantom drawing, B. combines top view, 1. left arch ribs, 2. right arch rib in figure, 3. rib shoulder, a. end face, b. shelves face, l. rib shoulder support face length degree, L. rib arm lengths (brachium must be greater than two support face length degree sums, i.e. L > 2l---lower same).

Fig. 9 is " end shoulder " constructional drawing.A. phantom drawing, B. combines top view, 1. left arch ribs, 2. right arch rib in figure, 4. end shoulder, a. end face, b. shelves face, l. end shoulder support face length degree, L. rib arm lengths.

Figure 10 is single armed body " both shoulders combination " constructional drawing.A. phantom drawing, B. combines top view, and in figure, 1. arch ribs not with functional configuration, 2. establish the arch rib that " both shoulders " construct, 3. rib shoulder, 4. end shoulder, a. end face, b. shelves face.

Figure 11 is both arms body " both shoulders combination " constructional drawing.A. phantom drawing, B. combines top view, 1. arch ribs not establishing functional configuration in figure, the both arms body arch rib 2. establishing " both shoulders " to construct, 3. rib shoulder, 4. end shoulder, a. end face, b. shelves face.

Figure 12 docks closure (combination of rib shoulder) constructional drawing voluntarily.A. combine elevation, B. combines top view, 1. left arch ribs, 2. right arch rib in figure, and 3. rib shoulder, 6. docks pin voluntarily, and I-I, II-II are rib shoulder sectional drawing, and arrow is traffic direction.

Figure 13 lifts docking closure (combination of rib shoulder) organigram in opposite directions.A. combine elevation, B. synthesizes top view, and its flow process: I. lifts initial state, II. intersect in opposite directions support closure.In figure, 1. left frames are spread out arching rib, and 2. correct frame spreads out arching rib, 3. rib shoulder, and 5. wind structure, 7. hoist engine, 8. cable, 9. arch springing pin, 11. tower cranes, arrow is job run direction.

Figure 14 is that closure (combination of rib shoulder) organigram is docked in unidirectional traction voluntarily.A. elevation is combined, first-first. combination top view, initial state is drawn in the unidirectional traction of B. voluntarily butt-joint operation general flow chart: I., and II-III-IV. draws closure arching continuously.1. left arch ribs, 2. right arch rib in figure, 3. rib shoulder, 6. dock pin voluntarily, 7. hoist engine, 8. cable, 9. arch springing pin, 10. operation post, 11. tower cranes, arrow is job run direction.

Figure 15 is that closure (combination of rib shoulder) simplified schematic diagram is docked in runner jacking voluntarily.I-II-III-IV-V is work flow, and in figure, 1,2 is rib shoulder combination arch rib, and 3. rib shoulder, 6. dock pin voluntarily, 7. hoist engine, 8. cable, 9. arch springing pin, 10. runner operation post, arrow is job run direction.

Detailed description of the invention

Several Intentionality embodiments

One, the component material of rainbow beam-arch structure and shape system.

Select modern building material, make the integration of main member functional configuration;

Arch rib can select reasonable section shape;

Large-scale rainbow beam-arch structure, arch rib should adopt trusses shape system (see Figure 13 ~ A);

Various combinations should adopt frame-like construction (see Figure 13 ~ B).

Two, found butt-joint process voluntarily.

Rainbow beam-arch structure, overlaps across joint arch in opposite directions, and rib arm photo frame of interlocking forms the intersection (the E point of Fig. 4) of axis.This technique (Figure 12) namely with axis plotted point for hinge, if " docking pin voluntarily " (6) lock rib arm, in opposite directions across joint with " pin " for axle, operation process docks closure voluntarily.

" voluntarily butt-joint process " is applicable to all kinds of integrated modes of functional structure.

Three, rainbow beam-arch structure three kinds of basic packaging technologies:

1, lifting docking closure in opposite directions.

Flow chart (Figure 13):

[I] lifts initial state: spread out camber rib (1) and correct frame of left frame spreads out camber rib (2) respectively with " bridge pin pin " (9) and respective abutment hinge; Regulation and control hoist engine (7), by tower crane (11) cable (8), make left and right framework spread out camber rib respectively with regard to its position;

[II], lifts support closure: two sides hoist engine simultaneously operating in opposite directions, makes, in opposite directions across joint arch rib intersection support, contact, tightly to lock arching.All the other structures of arch building, enter routine work program.

2, unidirectional traction docks closure voluntarily.

Flow chart (Figure 12, Figure 14):

[I] draws initial state: left arch rib (1) is hinged with " arch springing pin " (9), then it is in place to hand over justice to combine with " docking pin voluntarily " (6) and left arch rib the right arch rib (2) be placed on operation post (10);

[II-III-IV]: right arch rib (2) on operation post (10) will be placed in by hoist engine (7) tower crane (11) cable (8) unidirectional traction to opposite bank, and synchronously lead left arch rib (1), make in opposite directions across saving rib arm with " pin " (6) for axle docks closure slowly voluntarily, and make arch springing landing abutment tightly lock arching.

3, runner jacking docks closure voluntarily.

Flow chart (Figure 15) is docked in the jacking of multispan joint runner voluntarily:

[I] jacking initial state, first joint arch rib one end and abutment lock with arch springing pin (9) hinge, and the other end locks follow-up across joint arch rib by runner operation post (10) with " docking pin voluntarily " (6); Respectively be placed in operation post according to the order of sequence in order to successive assembling across joint arch rib.

[II-III] is through the traction of hoist engine (7) cable (8), make each section of arch rib that operation post is assembled according to the order of sequence, with " docking pin voluntarily " (6) locking, successive docks closure voluntarily by the counterclockwise jacking of runner (10).

[IV-V] is oppositely operated by hoist engine (7), and control arch springing slowly landing abutment tightly locks arching; Simultaneously operating runner operation post (10) departs from donor, and arch springing is landed abutment in order.

Above-mentioned all technique, contributes to cracking the unsettled assembling of existing large span arch bridge multistage arch rib just as ' chopsticks top chopsticks ', and high-altitude accurate positioning and security and stability exist a larger probabilistic difficult problem.

Claims (1)

1. rainbow beam-arch structure, according to " Hong Liang " prototype structure, be that curved beam shape arch rib and the longitudinal and transverse member function of creative set are in two functional configuration of same shaft of rib by changing straight beam shape longeron, with three kinds of integrated modes, make across joint arch rib intersection built, mutually support closure arching staggered in opposite directions, it is characterized in that: in rib arm " shelves face " bottom, functional configuration " rib shoulder " is set, in opposite directions across saving with " combination of rib shoulder "; Functional configuration " end shoulder " is set at rib arm " end face " top, in opposite directions across saving with " combination of end shoulder "; Be configured in single armed body all over the body or both arms body rib arm and the arch rib " both shoulders combines " not establishing functional configuration with " rib shoulder " " end shoulder " dual-functionality, facilitate in opposite directions across joint " end face " and " shelves face " together face contact to join the two sections of a bridge, etc arching.