CN103981871B - A kind of gusset form for pattern foundation pit supporting structure - Google Patents
A kind of gusset form for pattern foundation pit supporting structure Download PDFInfo
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- CN103981871B CN103981871B CN201410230994.6A CN201410230994A CN103981871B CN 103981871 B CN103981871 B CN 103981871B CN 201410230994 A CN201410230994 A CN 201410230994A CN 103981871 B CN103981871 B CN 103981871B
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- 229910000831 Steel Inorganic materials 0.000 claims description 293
- 239000010959 steel Substances 0.000 claims description 293
- 230000003014 reinforcing effect Effects 0.000 claims description 38
- 238000003466 welding Methods 0.000 claims description 19
- 238000009826 distribution Methods 0.000 claims description 12
- 239000004568 cement Substances 0.000 claims description 10
- 230000002787 reinforcement Effects 0.000 claims description 4
- 239000003351 stiffener Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 238000009412 basement excavation Methods 0.000 abstract description 5
- 238000004064 recycling Methods 0.000 abstract description 2
- 241000251468 Actinopterygii Species 0.000 description 5
- 210000001015 abdomen Anatomy 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
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Abstract
The invention discloses a kind of gusset form for pattern foundation pit supporting structure, by arranging three groups of angle braces in foundation ditch apex portion, and produce prestressing force near two groups of angle braces of vertex position by adjustment jack, the space that this kind of supporting and protection structure takies on the whole is little, be convenient to the excavation of foundation ditch, raise the efficiency, meanwhile, the component of supporting and protection structure is mostly standard-sized section bar, connected by bolt part, install, remove all very convenient, repeatedly recycling rate of waterused is high, reduces the cost of pattern foundation pit supporting structure on the whole.
Description
Technical field
The invention belongs to field of civil engineering, be specifically related to the prestressing force supporting and protection structure of foundation ditch.
Background technology
The mode that existing pattern foundation pit supporting structure mode mostly adopts arranges reinforced concrete fortifield village purlin in the surrounding of foundation ditch, arrange netted steel pipe support enclosing purlin inner circumferential again, its deficiency is that steel pipe consumption is large, install, remove trouble, and it is large to take up space, and is unfavorable for soil excavation in foundation ditch, can not well to foundation pit side-wall Shi Hanzhang, support strength is low, and the density usually can only arranged by increasing steel pipe increases support force; And the steel pipe of different size during different pattern foundation pit supporting structure, need be used, steel pipe repeat usage is low, causes the costly of pattern foundation pit supporting structure.
Summary of the invention
Technical problem to be solved by this invention is: the deficiency existed for prior art, provides a kind of and installs, removes convenient, occupy foundation ditch space little, the high and gusset form for pattern foundation pit supporting structure that the supporting section bar rate of recovery is high of supporting intensity.
For realizing the object of the present invention, be achieved by the following technical solutions: a kind of gusset form for pattern foundation pit supporting structure, include be positioned at foundation ditch vertex position both sides enclose purlin shaped steel, enclose purlin shaped steel and be fixedly connected with capping beam by rebar connector;
The described purlin shaped steel that encloses is H profile steel, the edge of a wing of its both sides equidistantly offers connecting hole group, each connecting hole group is made up of two connecting hole unit, each connecting hole unit has six connecting holes, six connecting holes are along enclosing purlin shaped steel length direction with the formal distribution of two row three row, distance between two laterally adjacent connecting holes is a, and the distance between two longitudinally adjacent connecting holes is 2a; The two ends of enclosing purlin shaped steel are fixedly welded with junction plate, and junction plate offers with four connecting holes of two row's two row formal distributions, the distance between two horizontal, longitudinally adjacent connecting holes is 2a; Adjacent enclosing between purlin shaped steel uses four groups of bolts coaxially to connect by junction plate.
Described rebar connector includes L shape reinforcing bar, reinforcement welding in the minor face of L shape reinforcing bar and capping beam is fixed, end, the long limit coaxial welding of L shape reinforcing bar has that tool is female can the reinforcing bar connector of attachment screw, to be connected thus will to enclose purlin shaped steel and capping beam is fixed through the screw enclosing purlin shaped steel with reinforcing bar connector; Reinforcement welding in the minor face of L shape reinforcing bar and capping beam is also cemented in the concrete of capping beam, and bonding strength is high to be not easy.
Connected by two triangle connection elements enclosing between purlin shaped steel of foundation ditch vertex position both sides, one of them triangle connection element is connected between two junction plates enclosing purlin shaped steel end, and another triangle connection element is connected between two sides of enclosing the adjacent end of purlin shaped steel; Two triangle connection elements coordinate, and make two of angle position to enclose purlin shaped steel and are connected firmly, and are not easy to loosen or distortion.
Described triangle connection element includes the linking arm of two vertical weldings, each linking arm offers six connecting holes, is vertically welded with the gusset plate of an isosceles right triangle between two linking arms.
At foundation ditch, each summit place is provided with 3 groups of angle braces, includes 2 groups of sub-thread angle braces and 1 group of three strands of angle brace.
Described sub-thread angle brace includes two the first angle brace seats and a strut, first angle brace seat is bolted and is enclosing on purlin shaped steel, strut and foundation ditch summit two gusset purlin shaped steel form an isosceles right triangle, one end of strut and a first angle brace seat are bolted, and are connected with a jack between the other end of strut and another the first angle brace seat.
Be connected with two channel-section steels between the strut of two sub-thread angle braces, two channel-section steels are mutually vertical, and between channel-section steel and strut shape is in angle of 45 degrees.
The first described angle brace seat surrounds an isosceles right triangle by three block plate head and the tail successively welding, three block plate intermediate vertical are welded with one piece of stiffener, the steel plate being positioned at hypotenuse offers six connecting holes, six connecting holes arrange three column distributions along hypotenuse length direction with two, laterally the distance of adjacent two connecting holes is a, and longitudinally the distance of adjacent two connecting holes is 2a; The steel plate being positioned at a right-angle side offers four connecting holes; Four connecting holes are with two row's two column distributions, and distance that is horizontal, longitudinally adjacent two connecting holes is 2a; And the position deflection being positioned at six connecting holes on the steel plate of hypotenuse does not offer the steel plate side of connecting hole; As shown in Figure 9, first angle brace seat is connected with strut and after producing prestressing force by jack, pressure mainly concentrates on the right part having steel plate on the right-angle side of connecting hole and hypotenuse upper steel plate, therefore the connecting hole of steel plate on hypotenuse to be arranged on position of keeping right the most reasonable, do not need too much connecting hole on the one hand, in turn ensure that bonding strength on the other hand.
Three strands of described angle braces include two multiply angle brace seats and three struts; Described multiply angle brace seat is bolted and adjacently encloses between purlin shaped steel at two, and multiply angle brace seat is connected with capping beam by rebar connector; Each multiply angle brace seat supported underneath has crossbeam, and described crossbeam is connected between two cement mixing piles, and crossbeam with enclose purlin shaped steel and be arranged in parallel; Described crossbeam is parallel with enclosing purlin shaped steel, and the obstruction to excavator when which reducing excavation of foundation pit, is beneficial to and raises the efficiency.
Described cement mixing pile upper portion side wall is connected with bracket part, and bracket part is connected with the H profile steel in cement mixing pile by bolt; Described beam erection is on bracket part, and crossbeam and bracket part are bolted;
Evenly be connected with 4 between three described struts and connect cover plate, connect cover plate mutually vertical with strut; Also be connected with 3 channel-section steels between three described struts, each channel-section steel is between two adjacent connection cover plates.
Described multiply angle brace seat is the second angle brace seat or trivet seat.
Described trivet seat is welded successively by three sections of H profile steel and forms, and the web of three sections of H profile steel is in the same plane, and three sections of H profile steel surround an isosceles right triangle; The H profile steel e two ends being positioned at hypotenuse stretch out, and end winding support is welded with junction plate, and the H profile steel f end being positioned at right-angle side is also connected with a junction plate; The edge of a wing of described each H profile steel periphery of trivet seat offers connecting hole; The H profile steel f edge of a wing offers six connecting hole unit, each connecting hole unit has four connecting holes, and the distance in each connecting hole unit laterally, longitudinally between two connecting holes is 2a; The H profile steel g edge of a wing being positioned at another right-angle side offers five connecting hole unit; The interlude on the H profile steel e edge of a wing offers seven connecting hole unit, and the two end portions on the H profile steel e edge of a wing offers the connecting hole that two group two is arranged eight row, and laterally the distance of two adjacent connecting holes is a, and longitudinally the distance of two adjacent connecting holes is 2a; Also be welded with multiple reinforcing gusset between the web of each H profile steel and the edge of a wing, reinforce the center that gusset is positioned at each connecting hole unit transverse; Be welded with a reinforcing H profile steel a parallel with H profile steel g between H profile steel f with H profile steel e, reinforcing is welded with two sections and reinforces H profile steel b between H profile steel a and H profile steel e, H profile steel g; Reinforce H profile steel a, reinforce the web of H profile steel b and the web isoplanar of H profile steel e, reinforce H profile steel a and reinforce that H profile steel b is vertical to be arranged, and the position reinforcing the correspondence reinforcing H profile steel b edge of a wing between H profile steel a two edge of a wing is welded with reinforcing gusset; Between each adjacent H profile steel of trivet seat, and reinforce H profile steel a and H profile steel f junction, reinforce H profile steel b and H profile steel g junction is all welded with the isoplanar triangular reinforced steel plate with web; Described trivet holder structure is firm, and mechanical strength is high, and due to the reinforcing H profile steel a that is provided with criss-cross fashion with reinforce H profile steel b, makes the H profile steel on each limit all can bear larger pressure.
The second described angle brace seat is welded successively by three sections of H profile steel and forms, and the web of three sections of H profile steel is in the same plane, and three sections of H profile steel surround an isosceles right triangle; 1/3 position on the H profile steel i the being positioned at hypotenuse edge of a wing is outwardly welded with a H profile steel h, and the both ends of H profile steel h and H profile steel i are all welded with junction plate; H profile steel i is positioned at H profile steel h side and the edge of a wing offers the connecting hole that 2 group two is arranged four row outwardly, and laterally the distance of two adjacent connecting holes is a, and longitudinally the distance of two adjacent connecting holes is 2a; H profile steel i is positioned at H profile steel h opposite side and the edge of a wing offers one group two outwardly and arrange the connecting hole that 11 row and a group two arrange six row; Web inside H profile steel i and be welded with multiple reinforcing gusset between the edge of a wing, reinforces the position that gusset is positioned at H profile steel h two ends, and the position between two adjacent groups connecting hole; The H profile steel j welding edges being positioned at right-angle side has junction plate, and the H profile steel j edge of a wing outwardly offers the connecting hole that six group two is arranged two row; Be positioned at the edge of a wing vertical welding that the end of the H profile steel k of another right-angle side and H profile steel j are close to end, the other end of H profile steel k welds away from one end of H profile steel h with H profile steel i; The H profile steel k edge of a wing outwardly offers the connecting hole that three group two is arranged two row; H profile steel k is welded with a guide plate passed for steel strand near the end position of H profile steel i, and H profile steel i is welded with a steel strand fixed head near one end of H profile steel k; H profile steel i, be welded with a junction steel plate between H profile steel j and H profile steel k, the junction steel plate position be positioned in the middle part of the second angle brace seat is provided with two steel strand anchorages;
Two described sub-thread angle braces and the length ratio of a multiply angle brace are 6: 8: 15.Three groups of angle braces, when this kind of length ratio, can ensure good supporting role, and the space that simultaneously three groups of angle braces can be made to occupy again is less, reduce the difficulty of soil excavation, improve the efficiency of foundation pit construction.
Compared with prior art, the invention has the beneficial effects as follows: by arranging three groups of angle braces in foundation ditch apex portion, and produce prestressing force near two groups of angle braces of vertex position by adjustment jack, the space that this kind of supporting and protection structure takies on the whole is little, be convenient to the excavation of foundation ditch, raise the efficiency, meanwhile, the component of supporting and protection structure is mostly standard-sized section bar, connected by bolt part, install, remove all very convenient, repeatedly recycling rate of waterused is high, reduces the cost of pattern foundation pit supporting structure on the whole.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of foundation pit support system.
Fig. 2 is the syndeton schematic diagram enclosing purlin shaped steel and capping beam.
Fig. 3 is the structural representation of rebar connector.
Fig. 4 is triangle connection element and the syndeton schematic diagram enclosing purlin shaped steel.
Fig. 5 is the structural representation of triangle connection element.
Fig. 6 is the structural representation looking up direction of Fig. 5.
Fig. 7 is the gusset form schematic diagram of a foundation ditch vertex position.
Fig. 8 is the structural representation of sub-thread angle brace.
Fig. 9 is the structural representation of the first angle brace seat.
Figure 10 is the structural representation overlooking direction of Fig. 9.
Figure 11 is the structural representation of trivet seat.
Figure 12 is the syndeton schematic diagram of crossbeam.
Detailed description of the invention
With reference to the accompanying drawings the specific embodiment of the present invention is made a detailed explanation below.
According to shown in Fig. 1 to Figure 12, a kind of gusset form for pattern foundation pit supporting structure described in the present embodiment, include be positioned at foundation ditch vertex position both sides enclose purlin shaped steel 10, enclose purlin shaped steel and be fixedly connected with capping beam by rebar connector 70;
The described purlin shaped steel that encloses is H profile steel, the edge of a wing of its both sides equidistantly offers connecting hole group, each connecting hole group is made up of two connecting hole unit, each connecting hole unit has six connecting holes, six connecting holes are along enclosing purlin shaped steel length direction with the formal distribution of two row three row, distance between two laterally adjacent connecting holes is a, and the distance between two longitudinally adjacent connecting holes is 2a; The two ends of enclosing purlin shaped steel are fixedly welded with junction plate 01, and junction plate offers with four connecting holes of two row's two row formal distributions, the distance between two horizontal, longitudinally adjacent connecting holes is 2a.
Described rebar connector includes L shape reinforcing bar 701, reinforcement welding in the minor face of L shape reinforcing bar and capping beam is fixed, end, the long limit coaxial welding of L shape reinforcing bar has that tool is female can the reinforcing bar connector 702 of attachment screw, to be connected thus will to enclose purlin shaped steel and capping beam is fixed through the screw 703 enclosing purlin shaped steel with reinforcing bar connector.
Connected by two triangle connection elements 20 enclosing between purlin shaped steel of foundation ditch vertex position both sides, one of them triangle connection element is connected between two junction plates enclosing purlin shaped steel end, and another triangle connection element is connected between two sides of enclosing the adjacent end of purlin shaped steel.
Described triangle connection element includes the linking arm 202 of two vertical weldings, each linking arm offers six connecting holes, is vertically welded with the gusset plate 201 of an isosceles right triangle between two linking arms.
At foundation ditch, each summit place is provided with 3 groups of angle braces, includes 2 groups of sub-thread angle braces and 1 group of three strands of angle brace.
Described sub-thread angle brace includes two the first angle brace seats 21 and a strut 11, first angle brace seat is bolted and is enclosing on purlin shaped steel, strut and foundation ditch summit two gusset purlin shaped steel form an isosceles right triangle, one end of strut and a first angle brace seat are bolted, and are connected with a jack 30 between the other end of strut and another the first angle brace seat.
Be connected with two channel-section steels, 14, two channel-section steels between the strut of two sub-thread angle braces mutually vertical, and between channel-section steel and strut 11 shape is in angle of 45 degrees.
The first described angle brace seat surrounds an isosceles right triangle by three block plate head and the tail successively welding, three block plate intermediate vertical are welded with one piece of stiffener, the steel plate being positioned at hypotenuse offers six connecting holes, six connecting holes arrange three column distributions along hypotenuse length direction with two, laterally the distance of adjacent two connecting holes is a, and longitudinally the distance of adjacent two connecting holes is 2a; The steel plate being positioned at a right-angle side offers four connecting holes; Four connecting holes are with two row's two column distributions, and distance that is horizontal, longitudinally adjacent two connecting holes is 2a; And the position deflection being positioned at six connecting holes on the steel plate of hypotenuse does not offer the steel plate side of connecting hole.
Three strands of described angle braces include two multiply angle brace seats and three struts; Described multiply angle brace seat is bolted and adjacently encloses between purlin shaped steel at two, and multiply angle brace seat is connected with capping beam by rebar connector; Each multiply angle brace seat supported underneath has crossbeam 13, and described crossbeam is connected between two cement mixing piles 40, and crossbeam with enclose purlin shaped steel and be arranged in parallel.
Described cement mixing pile upper portion side wall is connected with bracket part 41, and bracket part is connected with the H profile steel in cement mixing pile by bolt; Described beam erection is on bracket part, and crossbeam and bracket part are bolted.
Evenly be connected with 4 between three described struts and connect cover plate, connect cover plate mutually vertical with strut; Also be connected with 3 channel-section steels between three described struts, each channel-section steel is between two adjacent connection cover plates.
Described multiply angle brace seat is the second angle brace seat 22 or trivet seat 23.
Described trivet seat is welded successively by three sections of H profile steel and forms, and the web of three sections of H profile steel is in the same plane, and three sections of H profile steel surround an isosceles right triangle; The H profile steel e234 two ends being positioned at hypotenuse stretch out, and end winding support is welded with junction plate, and the H profile steel f235 end being positioned at right-angle side is also connected with a junction plate; The edge of a wing of described each H profile steel periphery of trivet seat offers connecting hole; The H profile steel f edge of a wing offers six connecting hole unit, each connecting hole unit has four connecting holes, and the distance in each connecting hole unit laterally, longitudinally between two connecting holes is 2a; The H profile steel g236 edge of a wing being positioned at another right-angle side offers five connecting hole unit; The interlude on the H profile steel e edge of a wing offers seven connecting hole unit, and the two end portions on the H profile steel e edge of a wing offers the connecting hole that two group two is arranged eight row, and laterally the distance of two adjacent connecting holes is a, and longitudinally the distance of two adjacent connecting holes is 2a; Also be welded with multiple reinforcing gusset between the web of each H profile steel and the edge of a wing, reinforce the center that gusset is positioned at each connecting hole unit transverse; Be welded with a reinforcing H profile steel a231 parallel with H profile steel g between H profile steel f with H profile steel e, reinforcing is welded with two sections and reinforces H profile steel b232 between H profile steel a and H profile steel e, H profile steel g; Reinforce H profile steel a, reinforce the web of H profile steel b and the web isoplanar of H profile steel e, reinforce H profile steel a and reinforce that H profile steel b is vertical to be arranged, and the position reinforcing the correspondence reinforcing H profile steel b edge of a wing between H profile steel a two edge of a wing is welded with reinforcing gusset; Between each adjacent H profile steel of trivet seat, and reinforce H profile steel a and H profile steel f junction, reinforce H profile steel b and H profile steel g junction is all welded with the isoplanar triangular reinforced steel plate 233 with web.
The long limit of foundation ditch is provided with two or more fish belly sill device, fish belly sill device includes 2 the second angle brace seats 22,5 web member supports between two the second angle brace seats, and to be fixed between two the second angle brace seats and steel strand to each web member support Shi Hanzhang.
The second described angle brace seat is welded successively by three sections of H profile steel and forms, and the web of three sections of H profile steel is in the same plane, and three sections of H profile steel surround an isosceles right triangle; 1/3 position on the H profile steel i the being positioned at hypotenuse edge of a wing is outwardly welded with a H profile steel h, and the both ends of H profile steel h and H profile steel i are all welded with junction plate; H profile steel i is positioned at H profile steel h side and the edge of a wing offers the connecting hole that 2 group two is arranged four row outwardly, and laterally the distance of two adjacent connecting holes is a, and longitudinally the distance of two adjacent connecting holes is 2a; H profile steel i is positioned at H profile steel h opposite side and the edge of a wing offers one group two outwardly and arrange the connecting hole that 11 row and a group two arrange six row; Web inside H profile steel i and be welded with multiple reinforcing gusset between the edge of a wing, reinforces the position that gusset is positioned at H profile steel h two ends, and the position between two adjacent groups connecting hole; The H profile steel j welding edges being positioned at right-angle side has junction plate, and the H profile steel j edge of a wing outwardly offers the connecting hole that six group two is arranged two row; Be positioned at the edge of a wing vertical welding that the end of the H profile steel k of another right-angle side and H profile steel j are close to end, the other end of H profile steel k welds away from one end of H profile steel h with H profile steel i; The H profile steel k edge of a wing outwardly offers the connecting hole that three group two is arranged two row; H profile steel k is welded with a guide plate passed for steel strand near the end position of H profile steel i, and H profile steel i is welded with a steel strand fixed head near one end of H profile steel k; H profile steel i, be welded with a junction steel plate between H profile steel j and H profile steel k, the junction steel plate position be positioned in the middle part of the second angle brace seat is provided with two steel strand anchorages.
Described trivet seat is general only for the strut of connecting angle brace, the second described angle brace seat usual connecting angle brace and fish belly sill device simultaneously.Wherein said steel strand anchorage is used for applying pulling force to the steel strand of fish belly sill device, makes each web member of fish belly sill produce prestressing force to the cement mixing pile metope of foundation pit side-wall, ensures that body of wall does not firmly tilt or collapses.Described steel strand end is divided into two strands through after guide plate, and one is strained by ground tackle, and another stock is fixed on steel strand fixed head after ground tackle tension.
Two described sub-thread angle braces and the length ratio of a multiply angle brace are 6: 8: 15.
Claims (1)
1., for a gusset form for pattern foundation pit supporting structure, it is characterized in that: include be positioned at foundation ditch vertex position both sides enclose purlin shaped steel, enclose purlin shaped steel and be fixedly connected with capping beam by rebar connector;
The described purlin shaped steel that encloses is H profile steel, the edge of a wing of its both sides equidistantly offers connecting hole group, each connecting hole group is made up of two connecting hole unit, each connecting hole unit has six connecting holes, six connecting holes are along enclosing purlin shaped steel length direction with the formal distribution of two row three row, distance between two laterally adjacent connecting holes is a, and the distance between two longitudinally adjacent connecting holes is 2a; The two ends of enclosing purlin shaped steel are fixedly welded with junction plate, and junction plate offers with four connecting holes of two row's two row formal distributions, the distance between two horizontal, longitudinally adjacent connecting holes is 2a;
Described rebar connector includes L shape reinforcing bar, reinforcement welding in the minor face of L shape reinforcing bar and capping beam is fixed, end, the long limit coaxial welding of L shape reinforcing bar has that tool is female can the reinforcing bar connector of attachment screw, to be connected thus will to enclose purlin shaped steel and capping beam is fixed through the screw enclosing purlin shaped steel with reinforcing bar connector;
Connected by two triangle connection elements enclosing between purlin shaped steel of foundation ditch vertex position both sides, one of them triangle connection element is connected between two junction plates enclosing purlin shaped steel end, and another triangle connection element is connected between two sides of enclosing the adjacent end of purlin shaped steel;
Described triangle connection element includes the linking arm of two vertical weldings, each linking arm offers six connecting holes, is vertically welded with the gusset plate of an isosceles right triangle between two linking arms;
At foundation ditch, each summit place is provided with 3 groups of angle braces, includes 2 groups of sub-thread angle braces and 1 group of three strands of angle brace;
Described sub-thread angle brace includes two the first angle brace seats and a strut, first angle brace seat is bolted and is enclosing on purlin shaped steel, strut and foundation ditch summit two gusset purlin shaped steel form an isosceles right triangle, one end of strut and a first angle brace seat are bolted, and are connected with a jack between the other end of strut and another the first angle brace seat;
Be connected with two channel-section steels between the strut of two sub-thread angle braces, two channel-section steels are mutually vertical, and between channel-section steel and strut shape is in angle of 45 degrees;
The first described angle brace seat surrounds an isosceles right triangle by three block plate head and the tail successively welding, three block plate intermediate vertical are welded with one piece of stiffener, the steel plate being positioned at hypotenuse offers six connecting holes, six connecting holes arrange three column distributions along hypotenuse length direction with two, laterally the distance of adjacent two connecting holes is a, and longitudinally the distance of adjacent two connecting holes is 2a; The steel plate being positioned at a right-angle side offers four connecting holes; Four connecting holes are with two row's two column distributions, and distance that is horizontal, longitudinally adjacent two connecting holes is 2a; And the position deflection being positioned at six connecting holes on the steel plate of hypotenuse does not offer the steel plate side of connecting hole;
Three strands of described angle braces include two multiply angle brace seats and three struts; Described multiply angle brace seat is bolted and adjacently encloses between purlin shaped steel at two, and multiply angle brace seat is connected with capping beam by rebar connector; Each multiply angle brace seat supported underneath has crossbeam, and described crossbeam is connected between two cement mixing piles, and crossbeam with enclose purlin shaped steel and be arranged in parallel;
Described cement mixing pile upper portion side wall is connected with bracket part, and bracket part is connected with the H profile steel in cement mixing pile by bolt; Described beam erection is on bracket part, and crossbeam and bracket part are bolted;
Evenly be connected with 4 between three described struts and connect cover plate, connect cover plate mutually vertical with strut; Also be connected with 3 channel-section steels between three described struts, each channel-section steel is between two adjacent connection cover plates;
Described multiply angle brace seat is the second angle brace seat or trivet seat;
Described trivet seat is welded successively by three sections of H profile steel and forms, and the web of three sections of H profile steel is in the same plane, and three sections of H profile steel surround an isosceles right triangle; The H profile steel e two ends being positioned at hypotenuse stretch out, and end winding support is welded with junction plate, and the H profile steel f end being positioned at right-angle side is also connected with a junction plate; The edge of a wing of described each H profile steel periphery of trivet seat offers connecting hole; The H profile steel f edge of a wing offers six connecting hole unit, each connecting hole unit has four connecting holes, and the distance in each connecting hole unit laterally, longitudinally between two connecting holes is 2a; The H profile steel g edge of a wing being positioned at another right-angle side offers five connecting hole unit; The interlude on the H profile steel e edge of a wing offers seven connecting hole unit, and the two end portions on the H profile steel e edge of a wing offers the connecting hole that two group two is arranged eight row, and laterally the distance of two adjacent connecting holes is a, and longitudinally the distance of two adjacent connecting holes is 2a; Also be welded with multiple reinforcing gusset between the web of each H profile steel and the edge of a wing, reinforce the center that gusset is positioned at each connecting hole unit transverse; Be welded with a reinforcing H profile steel a parallel with H profile steel g between H profile steel f with H profile steel e, reinforcing is welded with two sections and reinforces H profile steel b between H profile steel a and H profile steel e, H profile steel g; Reinforce H profile steel a, reinforce the web of H profile steel b and the web isoplanar of H profile steel e, reinforce H profile steel a and reinforce that H profile steel b is vertical to be arranged, and the position reinforcing the correspondence reinforcing H profile steel b edge of a wing between H profile steel a two edge of a wing is welded with reinforcing gusset; Between each adjacent H profile steel of trivet seat, and reinforce H profile steel a and H profile steel f junction, reinforce H profile steel b and H profile steel g junction is all welded with the isoplanar triangular reinforced steel plate with web;
The second described angle brace seat is welded successively by three sections of H profile steel and forms, and the web of three sections of H profile steel is in the same plane, and three sections of H profile steel surround an isosceles right triangle; 1/3 position on the H profile steel i the being positioned at hypotenuse edge of a wing is outwardly welded with a H profile steel h, and the both ends of H profile steel h and H profile steel i are all welded with junction plate; H profile steel i is positioned at H profile steel h side and the edge of a wing offers the connecting hole that 2 group two is arranged four row outwardly, and laterally the distance of two adjacent connecting holes is a, and longitudinally the distance of two adjacent connecting holes is 2a; H profile steel i is positioned at H profile steel h opposite side and the edge of a wing offers one group two outwardly and arrange the connecting hole that 11 row and a group two arrange six row; Web inside H profile steel i and be welded with multiple reinforcing gusset between the edge of a wing, reinforces the position that gusset is positioned at H profile steel h two ends, and the position between two adjacent groups connecting hole; The H profile steel j welding edges being positioned at right-angle side has junction plate, and the H profile steel j edge of a wing outwardly offers the connecting hole that six group two is arranged two row; Be positioned at the edge of a wing vertical welding that the end of the H profile steel k of another right-angle side and H profile steel j are close to end, the other end of H profile steel k welds away from one end of H profile steel h with H profile steel i; The H profile steel k edge of a wing outwardly offers the connecting hole that three group two is arranged two row; H profile steel k is welded with a guide plate passed for steel strand near the end position of H profile steel i, and H profile steel i is welded with a steel strand fixed head near one end of H profile steel k; H profile steel i, be welded with a junction steel plate between H profile steel j and H profile steel k, the junction steel plate position be positioned in the middle part of the second angle brace seat is provided with two steel strand anchorages;
Described steel strand end is divided into two strands through after guide plate, and one is strained by ground tackle, and another stock is fixed on steel strand fixed head after ground tackle tension;
Two described sub-thread angle braces and the length ratio of a multiply angle brace are 6: 8: 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410230994.6A CN103981871B (en) | 2014-05-28 | 2014-05-28 | A kind of gusset form for pattern foundation pit supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410230994.6A CN103981871B (en) | 2014-05-28 | 2014-05-28 | A kind of gusset form for pattern foundation pit supporting structure |
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| CN103981871B true CN103981871B (en) | 2016-01-06 |
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| CN104393491A (en) * | 2014-12-15 | 2015-03-04 | 广西春茂电气自动化工程有限公司 | Double-strengthening angle connecting structure for splicing type frame |
| CN111549786B (en) * | 2020-04-17 | 2021-06-08 | 浙江吉通地空建筑科技有限公司 | Detachable concave embedded type foundation pit inner supporting structure |
| CN115506250A (en) * | 2022-09-26 | 2022-12-23 | 中国建筑土木建设有限公司 | Pier cap construction and installation of protective structure |
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| KR20090101985A (en) * | 2008-03-25 | 2009-09-30 | 문원태 | Self-supporting retaining wall of steel truss |
| KR20090119504A (en) * | 2008-05-16 | 2009-11-19 | 김영수 | Screw Jack for Supporting Support |
| CN102888848A (en) * | 2012-10-18 | 2013-01-23 | 上海强劲地基工程股份有限公司 | Supporting structure for controlling stability of foundation ditch |
| CN202787271U (en) * | 2012-10-12 | 2013-03-13 | 上海强劲地基工程股份有限公司 | Stacked inner supporting structure for foundation pit supporting |
| CN103276739A (en) * | 2013-06-28 | 2013-09-04 | 上海强劲地基工程股份有限公司 | Foundation pit supporting structure with oblique support and pre-stress surrounding purlin |
| CN203846509U (en) * | 2014-05-28 | 2014-09-24 | 德清鑫德机械有限公司 | Angle bracing structure for foundation pit supporting |
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| JP2002227204A (en) * | 2001-01-29 | 2002-08-14 | Maeda Corp | Earth retaining method of excavation section |
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| KR20090101985A (en) * | 2008-03-25 | 2009-09-30 | 문원태 | Self-supporting retaining wall of steel truss |
| KR20090119504A (en) * | 2008-05-16 | 2009-11-19 | 김영수 | Screw Jack for Supporting Support |
| CN202787271U (en) * | 2012-10-12 | 2013-03-13 | 上海强劲地基工程股份有限公司 | Stacked inner supporting structure for foundation pit supporting |
| CN102888848A (en) * | 2012-10-18 | 2013-01-23 | 上海强劲地基工程股份有限公司 | Supporting structure for controlling stability of foundation ditch |
| CN103276739A (en) * | 2013-06-28 | 2013-09-04 | 上海强劲地基工程股份有限公司 | Foundation pit supporting structure with oblique support and pre-stress surrounding purlin |
| CN203846509U (en) * | 2014-05-28 | 2014-09-24 | 德清鑫德机械有限公司 | Angle bracing structure for foundation pit supporting |
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| CN103981871A (en) | 2014-08-13 |
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Denomination of invention: A Corner Bracing Structure for Foundation Pit Support Effective date of registration: 20231027 Granted publication date: 20160106 Pledgee: Yuyue sub branch of Zhejiang Deqing Rural Commercial Bank Co.,Ltd. Pledgor: DEQING XINDE MACHINERY Co.,Ltd. Registration number: Y2023980062877 |