CN100419191C

CN100419191C - Scaffolding

Info

Publication number: CN100419191C
Application number: CNB2006100735357A
Authority: CN
Inventors: 苏汝成
Original assignee: Wui Loong Scaffolding Works Co ltd
Current assignee: Wui Loong Scaffolding Works Co ltd
Priority date: 1999-07-28
Filing date: 2000-07-28
Publication date: 2008-09-17
Anticipated expiration: 2020-07-28
Also published as: NZ336959A; CN1258630C; HK1024379A2; CN1861956A; CN1313923A

Abstract

The falsework comprises an almost 2D inner grid frame, and an almost 2D outer grid frame; every load supporting member in frame included a horizontal and crossed vertical bars and one or more platforms every arranged between two horizontal bars, as well as a ladder on the falsework.

Description

Scaffold

The explanation of dividing an application

Present patent application is to be that July 28, application number in 2000 are 00800169.3 and denomination of invention dividing an application for the Chinese patent application of " scaffold " applying date.

Invention field

The present invention relates to scaffold.More specifically, the present invention relates to the secure context of scaffold.

Background of invention

In western countries, early stage at twentieth century, the popular timber of in scaffolding structure, just using.Because the timber scaffold causes the generation of a large amount of industrial accident and fire, the timber scaffold has worldwide been replaced by steel pipe scaffold basically.

, in the Asia, bamboo is used as scaffold traditionally.Bamboo matter scaffold still uses in China and Hong Kong.Bamboo has some advantages as scaffolding.Bamboo economy is cheap, and instrument that need not be special just can be made scaffold.Bamboo matter scaffold can be in a short time with limited working space in make.The topmost advantage of bamboo matter scaffold is that bamboo has very strong bending strength and and elasticity when cutting just., the dehydration gradually because bamboo is passed in time, its intensity is passed in time and is lost.When water content was lower than 10%, bamboo became dry and crackle can occur.The maximum life of bamboo matter scaffold workpiece is short relatively, has only 12 to 18 months.Like this, think that bamboo matter scaffold is unreliable a bit.

Because the limitation of bamboo replaces bamboo matter scaffold workpiece by steel scaffold workpiece gradually in Hong Kong.Steel scaffold workpiece still has the high shortcoming of cost.In some cases, the weight of steel scaffolding structure also can become problem.Because the cost and the strength characteristics of steel, the distance between the structural member is generally very wide, utilizes the intensity of steel to reduce material.This distance is climbed on scaffold and posture safety problem inconvenience the workman.

Australian patent specification No.45247/85 discloses a kind of traditional scaffolding structure, and it is protruding at interval from scaffolding structure that it has additional guard plate.This guard plate has increased the weight of structure, need specific support fixedly guard plate to scaffolding structure.

Therefore, an object of the present invention is to overcome or improve an aspect of above-mentioned at least shortcoming, or offer the selection of public's practicality.

Summary of the invention

According to a first aspect of the present invention, a kind of scaffolding structure that is used for building is provided, the scaffolding structure form is for interior grid frame and a two-dimentional substantially outer grid frame of two dimension are coupled to each other basically, in the grid frame each is included under the scaffold anticipated load condition, through having the supporting member of relatively stable intensity for a long time, it is characterized in that additional bamboo matter part is fixed on the outer grid frame layout that the layout that the result is made of supporting member on the outer grid frame and bamboo matter part constitutes less than the supporting member by interior grid frame.

Preferred supporting member is the elongate structure part, intersects in the usual way to form the grid frame.Elongate articles can utilize the right angle metal coupling unit to link up at the joining place of all or some grid framves.Under most preferred form of the present invention, supporting member is a steel spare, preferably has the tubular section.On the other hand selectable in the present invention, supporting member can comprise fibre reinforced plastic tube.Although can take other structure, the grid frame preferably is made of the supporting member that is 90 degree layouts each other.Therefore, each grid frame can have vertical load-bearing pillar and substantially horizontal load-bearing cross bar.Partial weight-bearing cross bar in wishing at least in the grid frame is corresponding with each load-bearing cross bar in the outer grid frame that is arranged in equal height.

Additional bamboo matter part preferably is fixed between the supporting member in the outer grid frame.In the most preferred form of the present invention, scaffolding structure is constructed like this, makes that the distance between the distance between any two adjacent bamboo matter parts and any bamboo matter part and adjacent supporting member all equates basically.Bamboo matter part preferably includes vertical support and horizontal cross bar, and the infall of wherein any bamboo matter part and other part utilizes nylon tape to be connected.

In addition, can interior grid frame and outside infall between the grid frame bamboo matter crosspiece is set.

The present invention also comprises one or more platforms on scaffold, each platform is arranged between two corresponding load-bearing cross bars of inside and outside grid frame of equal height, and wherein said platform is elongate configuration and comprises planar support surface and platform is connected to two connectors on the load-bearing cross bar.

Connector preferably includes hook portions.This hook portions can horizontal expansion outside any side direction of platform.Preferably have minimum four hook portions, each stretches out from each bight of platform.

The present invention also comprises the anchor device of anchoring scaffold to the building, and anchor device has a support arm that connects with scaffolding structure, and an end of support arm has the anchoring piece that is fixed on the building; Anchor device also comprises a tether that is fixed to the upper face and energy bearing load, and this tether links to each other with scaffolding structure.

Support arm has suitable connector and connects anchoring piece to scaffolding structure.Here scaffolding structure comprises interior grid frame and the outer grid frame that is coupled to each other, and support arm preferably all connects with outer grid frame with interior grid frame.And the tether of bearing load also is fit to be fixed on certain position on the outer grid frame below support arm and the outer grid frame interface, and the tether of bearing load extends with diagonal angle braced structures tensioning as a result.

The tether of bearing load is preferably pliable and tough, and can be made of cotton rope, hawser or chain.In use, the connector on the tether of bearing load preferably is fixed on the outer grid frame of scaffolding structure, as the alternative guard member under the stent failure situation.

Anchoring piece can comprise a plate that is fit to be welded on the support arm.Anchor plate is preferably extending in the plane longitudinally perpendicular to support arm, and plate utilizes bolt to building.Anchoring piece can comprise an eyelet, and an end of tether can be fixed on the anchoring piece by this eyelet.

Scaffolding structure of the present invention can be by the building supporting of Hot work in progress.This building comprises at least one concrete slab.There are one or more structural beams to support, and stretch out with cantilevered fashion from concrete slab by concrete slab.Scaffolding structure is bearing on one or more structural beams.

The spacing of contiguous cantilever construction beam relies on concrete application, but preferred spacing is about 3 meters.Said method can use together with the bearing support that is installed on the building pillar.Said method is suitable especially when intercolumniation is not enough to mounting bracket and strides across concrete slab thickness greater than 3 meters and concrete slab thickness.Therefore, supporting bracket can utilize the structural beams of the suitable quantity of interval between the adjacent support support to be installed on the support column, and wherein supporting bracket is installed on the corresponding building pillar.

In a preferred form of the invention, structural beams comprises the I ellbeam., the structural beams that comprises other type of box-girder also can be considered within the scope of the invention.

According to another aspect of the present invention, the anchor device on a kind of building that scaffolding structure is anchored to Hot work in progress is provided, this anchor device comprises: a support arm that is connected on the scaffolding structure, support arm has the longitudinal axis; And one be fixed to anchoring piece on the building with anchor device and scaffolding structure, this anchoring piece connects and has first leg of bar or bar form with support arm, anchoring piece can be aimed at, and the longitudinal axis that makes the leg of winning be parallel to support arm substantially extends, and the first leg remote extension surpasses support arm.

According to another aspect of the present invention, a kind of scaffolding structure of building is provided, the scaffolding structure form is for interior grid frame and a two-dimentional substantially outer grid frame of two dimension are coupled to each other basically, in the grid frame each comprises the supporting member of slim-lined construction spare form, this slim-lined construction part comprises that the cross bar of basic horizontal and vertical pillar intersect formation grid frame, the load-bearing cross bar of grid frame to the small part in the scaffolding structure is corresponding with each load-bearing cross bar in the outer grid frame that is arranged in equal height, scaffolding structure also comprises one or more platforms, each platform be arranged in equal height in, between two corresponding load-bearing cross bars of outer grid frame, have the opening of coming in and going out to lead to the lower area of scaffolding structure on the wherein said platform, scaffolding structure also comprises and being installed on the scaffold, be used for the ladder of workman by the opening of coming in and going out.

The present invention is present in the above stated specification, and comprises the example that following explanation just provides structure.

Brief Description Of Drawings

For understanding the present invention more fully, embodiments of the invention are described referring now to accompanying drawing.These accompanying drawings comprise:

Fig. 1 is the part signal three-dimensional view according to the scaffold of first preferred embodiment of the invention;

Fig. 2 is the schematic diagram of interior grid frame that is shown in the scaffolding structure of Fig. 1;

Fig. 3 is the schematic diagram of outer grid frame that is shown in the scaffolding structure of Fig. 1;

Fig. 4 is the lateral view that is shown in the scaffolding structure of Fig. 1;

Fig. 5 is the diagrammatic elevation view of pedestal that is shown in the scaffolding structure of Fig. 1;

Fig. 6 a is the diagrammatic elevation view that is shown in the scaffolding structure of Fig. 1, only represents main components;

Fig. 6 b is the signal three-dimensional view that improves layout a little of the supporting bracket of scaffolding structure;

Fig. 7 is the elevation of the optional supporting bracket of scaffolding structure shown in Figure 1;

Fig. 8 is the lateral view of the optional supporting bracket of Fig. 7;

Fig. 9 is the diagrammatic side view of the anchoring process of fixing scaffolding structure shown in Figure 1;

Figure 10 a is the three-dimensional view that expression is used for implementing the anchor device of anchoring process shown in Figure 9;

Figure 10 b is the lateral view of the anchor device of optional form;

Figure 11 is the schematic views of the suitable strut of scaffolding structure shown in Figure 1;

The typical detail of the outer grid frame of Figure 12 presentation graphs 1 scaffolding structure has the profile of the prodefined opening in the grid frame outside;

Figure 13 represents the outer grid frame of Figure 12, has opening above, and utilizes suitable ribs to strengthen outer grid frame;

Figure 14 is the lateral view of fanning with the collection that the scaffolding structure that is shown in Fig. 1 uses;

Figure 15 a is the supporting bracket that uses with the scaffolding structure that is shown in Fig. 1 and the lateral view of topping;

Figure 15 b is the lateral view of another kind of optional form bearing support;

Figure 16 is the three-dimensional view of Fig. 1 scaffold when workman's working platform is installed;

Figure 17 is the detailed structure of Fig. 1 scaffold when installing ladder;

Figure 18 is the signal three-dimensional view of scaffolding structure of installing workman's working platform of selectable another kind of form;

Figure 19 is the vertical view of corner detail of workman's working platform of selectable another kind of form;

Figure 20 is the lateral view of the toe board that uses in the workman's working platform shown in Figure 18 and 19;

Figure 21 is the signal three-dimensional view of the concrete form of workman's working platform, represents an opening and a ladder; And

Figure 22 is the lateral view and the elevation of ladder shown in Figure 21.

Preferred embodiment

The scaffolding structure 10 that is shown in Fig. 1 is three-dimensional structures.Scaffolding structure 10 comprises grid frame 12 and the outer grid frame 14 of two dimension that is shown in Fig. 3 in the two dimension that is shown in Fig. 2.As shown in Figure 4, the wall of the building 15 of interior grid frame 12 contiguous Hot work in progress is arranged.Interior grid frame 12 is approximately 200mm apart from the spacing of building 15 walls.Outer grid frame 14 is arranged in scaffolding structure 10 position outside with respect to building 15.Outer grid frame 14 and interior grid frame 12 are approximately 600～700mm at interval.As Fig. 4 and shown in Figure 1, they utilize bamboo matter crosspiece 18 to link up.

With reference to Fig. 2, interior grid frame comprises vertical pillar 20 and horizontal cross bar 22.Each is longilineal steel pipe fitting in pillar and the cross bar.At each infall of cross bar and pillar, utilize the metal coupling unit (not shown) to link up between the steel pipe fitting.Metal coupling unit utilizes the cover protection to prevent pollution, particularly prevents concrete pollution.

As shown in Figure 2, between the vertical support 20 is 1.5m at interval, and the spacing between the horizontal cross bar 22 is 2.25m.The rectangular aperture that the tube-like piece intersection produces has formed the layout in the grid frame, and the workman on the scaffold can enter the various piece of the building 15 that needs by these layouts.Because the inherent strength height of steel cross bar 22 and pillar 20, layout is relatively large, makes that the workman on scaffolding structure 10 passes in and out building 15 easily.

On the other hand, the outer grid frame that is shown in Fig. 3 comprises bamboo matter cross bar 25 and bamboo matter pillar 27, and steel cross bar 24 and steel pillar 26.In Fig. 3, bamboo matter cross bar and bamboo matter pillar are represented by fine rule, and steel cross bar 26 and pillar 24 utilize vertical and horizontal thick line to represent.Steel cross bar 26 and pillar 24 provide structural strength for outer grid frame 14, and bamboo matter cross bar 25 and bamboo matter pillar 27 provide the protection guardrail for the safety of workers on the scaffolding structure 10.Bamboo matter cross bar 25 and bamboo matter pillar 27 have increased the safety of the workman on the scaffolding structure 10 like this, and needn't increase the cost or the weight of scaffolding structure.

The spacing of the steel pillar 24 in the outer grid frame 14 is 3 meters (1.5 meters of spacings of grid frame 12 in being different from).The vertical interval of steel cross bar 26 is 2.25 meters.This is corresponding to the spacing of horizontal cross bar 22, in the outer grid frame of result in the height of cross bar 26 and the interior grid frame cross bar 22 highly identical.Be appropriate like this because bamboo matter crosspiece 18 the cross bar 22 of interior grid frame and outside extend between the cross bar 26 of grid frame, this can find out at Fig. 4.And, as shown in Figure 1, the level interval of the bamboo matter crosspiece that aligns with

cross bar

26,22 in the scaffolding structure 10, corresponding with the spacing of bamboo matter pillar 27 in the outer grid frame.

Turn back to Fig. 3, bamboo matter pillar 27 is with 0.75 meter pitch arrangement, and this allows to have the bamboo matter pillar of three equidistant from distance between adjacent steel pillar 24.Similarly, bamboo matter cross bar 25 0.75 meter pitch arrangement to equate between adjacent steel cross bar 26.Suppose that steel cross bar spacing is 2.25 meters, two equally spaced bamboo matter cross bars 25 can be arranged therebetween.Generally speaking, the steel elongate articles of intersection utilizes metal coupling unit to connect.The bamboo matter part that intersects utilizes nylon tape to connect.

Fig. 4 also represents the layout of the net 24 on the scaffolding structure spare skin.This can prevent that material or instrument from dropping to the outside of scaffolding structure.Nylon tape shown in net 24 should utilize or wire tightly are fixed on the scaffolding structure.

Fig. 6 a just schematically shows the main components of scaffolding structure 10.In the

steel pillar

20,24 each about 6 meters long.Each altimeter of scaffolding structure 10 is shown one " district ", shown in Fig. 6 a like that, it highly is 24 meters.Each

steel pillar

20,24 of distinguishing by 4 * 6 meters long constitutes like this.Zone in each district between the

adjacent steel pillar

20,24 is called " layout district ".In this example, the height in each layout district is limited by the vertical distance between the supporting bracket 30.In this example, supporting bracket with the corresponding vertical spacing setting of four steel pillars, 20,24 length, each layout district height is 24 meters like this., the vertical spacing of support depends on the weight and the anticipated load of scaffold naturally.

The structure of supporting bracket 30 schematically illustrates in Figure 15 a.The

steel pillar

20,24 of scaffolding structure 10 is installed in the proper grooves (not illustrating) on the support arm of support.Supporting bracket 30 uses angle bar to constitute, and the angle bar shape is that the length of side is the right angled isosceles triangle of 900mm.Angle bar can be 80 * 80 * 8, relies on concrete application scenario, and its angle can be 43 degree.One side of supporting bracket 30 is fixed on the wall of concrete structure, preferably in the vertical support column position of building 15.Such row's supporting bracket 30 from the bottom of scaffold, height and position that scaffolding structure is installed provides the supporting to scaffolding structure.

In order to build scaffolding structure, can at first build interim bamboo matter structure.In case first row's steel support 30 has been installed, and then interim bamboo matter structure can be converted to the part of scaffolding structure.

Figure 15 b represents the supporting bracket 30b of another kind of form.Can find out that the suitable vertical spacing of support is 24 meters from Fig. 6 a.Yet the more high-intensity support by will being shown in Figure 15 b uses with the anchor device (seeing Fig. 9,10a and 10b) of nearlyer spacing, and set spacing can be increased to the 30m shown in Fig. 6 b.Fig. 6 b shows that also the height of support 30b should be with respect to contiguous upside or the suitable numerical value of support 30b deviation (80mm) on the downside height.This make that the steel pillar can be overlapping (preferably 3m) and with shown in mode tighten and be fixed together.Chucking fixture 30c is spaced apart 750mm.

In some cases, building pillar position is far away excessively, and effectively fixedly the adjacent support support 30.In this case, the another kind of the Xu Yaoing support arrangement that is used for scaffolding structure is illustrated in Fig. 7.Fig. 7 represents the adjacent struts 40 of building 15, and this pillar has the concrete slab 42 that extends betwixt.Two supporting brackets 30 utilize on bolt 46 each pillar 40 shown in being fixed to., in order suitably to support scaffolding structure 10, these supporting brackets 30 exceed its maximum spacing that allows.Like this, as shown in Figure 8, cantilever I ellbeam 44 usefulness bolt extend outwardly beyond concrete slab 42 to concrete slab.As shown in Figure 8, interior grid frame 12 and outer grid frame 14 are bearing on the I ellbeam 44, and outer grid frame 14 is apart from the cantilever end of I ellbeam 44 200mm at least, apart from concrete slab 200mm at least.I ellbeam 44 is interim, in case that scaffolding structure disassembles is just dismountable.

Fig. 9 represents the method for anchoring scaffolding structure 10 to the building 15.Utilize anchor device shown in Figure 9 50 to realize anchoring.Anchor device 50 Figure 10 a represent clearer.Anchor device 50 comprises one about 1 meter long, the short relatively metal tube arm of external diameter 48.6mm.As shown in Figure 9.Having one at metal tube 52 1 ends is fit to the anchor plate 54 of Bolt Connection to the concrete structure 15.Utilize metal right angle connector metal tube 52 is fixed in (see figure 9) on the vertical support of grid frame 12 and outer grid frame 14.Anchor plate 54 also has the eyelet 56 that is used for connecting steel cable 58.As shown in Figure 9, the other end of the steel cable of being made by the R6 steel wire 58 has connector 59, is used for being fixed on the member of outer grid frame 14.By connector 59 being fixed on the outer grid frame 14, scaffolding structure 10 can be connected on the building 15 effectively.

Anchoring process shown in Figure 9 is used for interior grid frame 12 and outer grid frame 14 are fixed to building, and wherein supposition has only bamboo matter crosspiece 18 to be arranged between two grid framves.Anchoring process can be used as the reserve measure under any stent failure situation.

Figure 10 b represents another kind of selectable anchor device 50b.Anchor device 50b comprises one about 1 meter long short support arm 52b.End at support arm has a through hole 50d, is contained in wherein for L shaped shaft-like anchoring piece 50c.In structure as shown in the figure, anchoring piece 50c has one to have free-ended first leg, and first leg extends beyond arm end.The free end thread connection of first leg makes anchoring piece be fixed in the fabric structure.The little foothold of first leg on building makes the leg of winning can almost be fixed on any position, thereby allow greater flexibility on the positioning and anchoring device.Anchoring piece 50c casting is requiring the position, or treats to be fixed on the concrete structure of building 15 after the hardening of concrete.Its end of thread can extend to about 750mm in the concrete.Anchoring piece 50c also comprises second leg that is contained among the through hole 50d.Second leg also has the screw thread free end.This screw thread free end is engaged in the nut (not shown), so that second leg remains in the hole., the length of second leg makes support arm 52b to slide along second leg, has increased the flexibility of arranging first leg on the correct position of building 15 like this.As mentioned above, frequently use anchor device to reduce demand to supporting bracket.Ideally, vertical spacing is no more than 2.25m, and level interval is no more than 3m.Can find out that from the contrast of Fig. 6 a and Fig. 6 b the spacing between the support can be increased to 30 meters from 24 meters.This is to utilize the support 30b of frequent anchor device 50b of use and improved form to realize.

Figure 11 represents the suitable ribs 60 of scaffolding structure 10.The outer grid frame 14 of scaffolding structure 10 is schematically illustrated by vertical steel pillar 24 spaced apart.As shown in it, 5 layout districts of per 15 meters correspondences, the ribs that diagonal strides across is arranged with the angle of 45-60 degree (positive and negative 5 degree) usually.

Figure 12 represents the detailed structure of outer grid frame 14, and dotted line 70 is illustrated in the position of the expection opening that forms on the outer grid frame 14.Opening 70 is used to deliver material as shown in it to on-the-spot.Figure 13 represents to have the details of the outer grid frame 14 of opening 70.Bamboo matter part and steel spare such incision as shown in the figure.For strengthening grid frame 14, additional ribs 72 has been installed.These ribs extend along diagonal as shown in the figure.In addition, caution sign has been installed, has reminded the potential danger of workman in scaffolding structure.

Another feature of scaffolding structure 10 provides collection fan as shown in figure 14.Collect fan 80 comprise one from scaffolding structure 10 upwards, outward extending collection surface 82.Collection surface 82 by from outer grid frame 14 upwards, outward extending isolated metal tube 84 constitutes, and wherein has the refractory material of the similar canvas that extends above metal support pipe 84.Last, the outer end of metal support pipe 84 are supported by additional metals pipe 86.Each metal tube 86 is connected to the end of one of them metal tube 84, and makes progress from this end, inwardly extends towards outer grid frame 14.Generally, collection surface 82 is arranged with horizontal plane angle at 45, but can be adjusted together with additional metals pipe 86.Collection surface 82 is collected fallen material on building 15 or the scaffolding structure 10, i.e. collection of debris and remove thing like a cork.Generally be provided with and collect fan 80 every ten layers., independent contractor can install and collect the needs that fan 80 satisfies concrete building place.

As Figure 15, the workman in the protection scaffolding structure 10 is provided with topping 90 at certain interval, preferably near the supporting bracket top, promptly every ten layers.Topping 90 is come in and gone out for the workman and is prevented that the workman from falling.In addition, the injury of the chip that do not fallen of topping 90 protection workmans.Each topping 90 comprises bamboo matter part 92 one deck horizontal arrangement, that extend between contiguous crosspiece 18.The spacing of bamboo matter part should not surpass 200mm.Bamboo matter part 92 can be above or below crosspiece 18.Bamboo matter part is provided at the buffering effect of weight when fall in the top.Above horizontal bamboo matter part 92, lay zine plate 94.Zine plate can form the form of the upturned edge 94a with about 100mm height.The bamboo matter cross bar (not shown) that is fixed on the zine plate top prevents that zine plate is blown away.

Selectively, except topping 90, or be used for substituting topping 90, the metallists's working platform that is called " catwalk " can be installed.A suitable catwalk 100 is shown in Figure 16.Catwalk 100 has the elongated plane shape usually, and it is made of the rectangular metal frame 101 of an elongated shape, and is arranging the metal sheet 102 with elongated rectangular area supported on framework 101.Catwalk 100 is by at the horizontal steel cross bar 26 of the outer grid frame 14 of a side with in horizontal steel cross bar 22 supportings of interior grid frame 12 respective heights of opposite side.Hook portions 107 fasteners that come out from metal framework 101 side horizontal expansions are to relevant horizontal steel cross bar 22,26.Should be appreciated that in order to ensure being positioned at top catwalk be level, the horizontal

steel cross bar

22,26 on inside and outside layer should be arranged in equal height.For this reason, when building, in building, before the grid frame 12, a part of catwalk can be installed in certain position on the outer grid frame 14.

Figure 18 represents the form of catwalk slight improvement.Shown catwalk is included in the toe board 100b of each vertical side.The concrete form of toe board 100b is illustrated among Figure 20.The toe board form is general rectangular slab, and the angle of its bottom is removed, and makes toe board can remain between a pair of relative support.The form of support 100c very clearly shows at Figure 19.Metallic support 100c is L shaped plane, and has the height highly corresponding with platform 102.The vertical side of each of platform has a pair of relative support 100c.Toe board is between a pair of relative support 100c.Therefore, the length between relative support TL is corresponding to the distance between the vertical edge after cutting away the bight at toe board.The length correspondence of the overall length of toe board and platform 102.

Figure 19 also is illustrated in the form that adjacent side has the special bight platform of support 100c.

As shown in figure 17, another feature of scaffold is to have the metal ladder.The metal ladder comprises a pair of isolated terraced frame 110, and has gangboard 112 appropriately isolated, that extend between terraced frame.The end of elongated shape ladder frame 110 has hook-shaped or latch closure part 114, is used to be connected to the suitable junction member of scaffolding structure 10.

Should be appreciated that the form of metal ladder as shown in figure 17 can only be installed in the bight of scaffolding structure, otherwise can stop platform.The ladder 120 of Figure 21 and the other optional form of 22 expressions, it can be installed in the centre position along platform.Developed the platform of special shape, be used for using with the ladder 120 of optional form.This platform has an opening 127, and this opening 127 has enough big size that ladder is installed and the workman is passed through.By pivot 129 turnover wicket 128 pivots are connected on the platform.The turnover wicket covers the part of opening 127, and the enough ladders 120 of remaining space pass through.The hand hole 130 of turnover on the wicket can make the workman from above open wicket 128.

The concrete form of ladder is illustrated in Figure 22.Ladder 120 has terraced frame 132 and step 133.Step 133 is the square-section.At the top of ladder 120, terraced frame is shaped as U-shaped, and for adapting to the profile of the steel cross bar that supports ladder, its each end forms C shape support 135.Similar, the lower end of terraced frame 132 has C shape support 137 separately.In addition, owing to top, square C shape support 135,137 necessary alignment down, therefore the lower end of terraced frame has step.

Claims

1. the scaffolding structure of a building that is used for just building, its form is that the interior grid frame of two dimension and the outer grid frame of a two dimension are coupled to each other, in the grid frame each comprises the supporting member of slim-lined construction spare form, this slim-lined construction spare comprises that the cross bar of level and vertical pillar intersect formation grid frame, scaffolding structure is built like this, make the load-bearing cross bar of to the small part grid frame corresponding with each load-bearing cross bar in the outer grid frame that is arranged in equal height, scaffolding structure also comprises one or more platforms, each platform be arranged in equal height in, between two corresponding load-bearing cross bars of outer grid frame, the opening of coming in and going out is arranged on the wherein said platform, be used for leading to the lower area of scaffolding structure, scaffolding structure also comprises and being installed on the scaffold, be used for the ladder of workman by the opening of coming in and going out, wherein, described ladder comprises step and terraced frame, each terraced frame forms U-shaped in the upper end, the far-end of U-shaped has with the cross bar shape complementarity, connector separately, described terraced frame also have with the cross bar shape complementarity in the bottom, connector separately.

2. scaffolding structure according to claim 1 is characterized in that also comprising an access wicket that moves between fastening position of closing the opening of coming in and going out to small part and open position, and it has enough spaces and allows the workman to use ladder.

3. as scaffolding structure as described in the claim 2, it is characterized in that described access wicket stays certain space at the opening of coming in and going out when fastening position, so that ladder extends through this space.