CN103981871A - Angle brace structure for supporting of foundation pit - Google Patents
Angle brace structure for supporting of foundation pit Download PDFInfo
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- CN103981871A CN103981871A CN201410230994.6A CN201410230994A CN103981871A CN 103981871 A CN103981871 A CN 103981871A CN 201410230994 A CN201410230994 A CN 201410230994A CN 103981871 A CN103981871 A CN 103981871A
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- 229910000831 Steel Inorganic materials 0.000 claims description 291
- 239000010959 steel Substances 0.000 claims description 291
- 230000003014 reinforcing effect Effects 0.000 claims description 43
- 238000003466 welding Methods 0.000 claims description 15
- 238000009826 distribution Methods 0.000 claims description 12
- 239000004568 cement Substances 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000005755 formation reaction Methods 0.000 claims description 3
- 239000003351 stiffener Substances 0.000 claims description 3
- 238000009412 basement excavation Methods 0.000 abstract description 5
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- 210000001015 abdomen Anatomy 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000009286 beneficial effect 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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- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The invention discloses an angle brace structure for supporting of a foundation pit. Three sets of angle braces are arranged at each apex of the foundation pit, and two sets of angle braces, close to the apex, generate prestress by means of jack adjustment. The supporting structure occupies small space integrally and facilitates excavation of the foundation pit with efficiency improved; as most of members of the supporting structure are section bars in standard size, bolt connection, mounting and demounting of the supporting structure are facilitated, the reutilization rate is high and cost of the supporting for the foundation pit is lowered integrally.
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 is that the surrounding at foundation ditch arranges reinforced concrete fortifield village purlin, in enclosing purlin, week is arranged netted steel pipe support again, when it is not enough, 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 to foundation pit side-wall, apply prestressing force well, support strength is low, conventionally can only increase support force by increasing the density of steel pipe layout; And during different pattern foundation pit supporting structure, need use the steel pipe of different size, 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 existing for prior art, and a kind of installation is provided, removes conveniently, occupy foundation ditch space little, the angle brace structure for pattern foundation pit supporting structure that supporting intensity is high and the supporting section bar rate of recovery is high.
For realizing the present invention's object, be achieved by the following technical solutions: a kind of angle brace structure 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 shaped steel, on the edge of a wing of its both sides, equidistantly offer connecting hole group, each connecting hole group is by two connecting hole cell formations, there are six connecting holes each connecting hole unit, six connecting holes are along enclosing the formal distribution of purlin shaped steel length direction with two row's three row, laterally the distance between two adjacent connecting holes is a, and longitudinally the distance between two adjacent connecting holes is 2a; The two ends of enclosing purlin shaped steel are fixedly welded with junction plate, offer four connecting holes with two row's two row formal distributions on junction plate, and the distance between horizontal, longitudinal two adjacent connecting holes is 2a; Adjacent enclosing between purlin shaped steel used four groups of bolts coaxially to connect by junction plate.
Described rebar connector includes L shaped reinforcing bar, the minor face of L shaped reinforcing bar and the reinforcing bar in capping beam are welded and fixed, end, the long limit coaxial welding of L shaped reinforcing bar has the female reinforcing bar connector that can attachment screw of tool, thereby is connected with reinforcing bar connector and will encloses purlin shaped steel and capping beam is fixed through the screw that encloses purlin shaped steel; The minor face of L shaped reinforcing bar and the reinforcing bar in capping beam weld and are cemented in the concrete of capping beam, and bonding strength is high to be not easy.
Enclosing between purlin shaped steel of foundation ditch vertex position both sides, by two triangle connection elements, connect, one of them triangle connection element is connected between two junction plates that enclose 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 enclose purlin shaped steel and are connected firmly, and are not easy loosening or distortion.
Described triangle connection element includes the linking arm of two vertical weldings, offers six connecting holes on each linking arm, is vertically welded with the gusset plate of an isosceles right triangle between two linking arms.
At foundation ditch, near each place, summit, be provided with 3 groups of angle braces, include 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, the 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 between the other end of strut and another the first angle brace seat, are connected with a jack.
Between the strut of two sub-thread angle braces, be connected with two channel-section steels, 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 a stiffener, be positioned on the steel plate of hypotenuse and offer six connecting holes, six connecting holes along hypotenuse length direction with two row's three column distributions, laterally the distance of adjacent two connecting holes is a, and longitudinally the distance of adjacent two connecting holes is 2a; Be positioned on the steel plate of a right-angle side and offer four connecting holes; Four connecting holes are with two row's two column distributions, and distances horizontal, longitudinally adjacent two connecting holes are 2a; And the position deflection that is positioned at six connecting holes on the steel plate of hypotenuse is not offered steel plate one side of connecting hole; As shown in Figure 9, the first angle brace is sat and is connected with strut and is produced after prestressing force by jack, pressure mainly concentrates on steel plate on the right-angle side that has connecting hole and the right side part of hypotenuse upper steel plate, therefore it is the most reasonable that the connecting hole of the steel plate on hypotenuse is arranged on the position of keeping right, do not need too much connecting hole on the one hand, guaranteed again on the other hand bonding strength.
Three strands of described angle braces include two multiply angle brace seats and three struts; Described multiply angle brace seat is bolted two adjacent enclosing between purlin shaped steel, 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 and enclose purlin shaped steel and be arranged in parallel; Described crossbeam is with to enclose purlin shaped steel parallel, and the obstruction to excavator while having reduced like this 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 shaped steel in cement mixing pile by bolt; Described beam erection is on bracket part, and crossbeam and bracket part are bolted;
Between three described struts, be evenly connected with 4 and connect cover plate, connect cover plate mutually vertical with strut; Between three described struts, be also connected with 3 channel-section steels, 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 and is formed by three sections of H shaped steel, and the web of three sections of H shaped steel is in the same plane, and three sections of H shaped steel surround an isosceles right triangle; The H shaped steel e two ends that are positioned at hypotenuse stretch out, and end is fixedly welded with junction plate, and a H shaped steel f end that is positioned at right-angle side is also connected with a junction plate; On the edge of a wing of each H shaped steel periphery of described trivet seat, offer connecting hole; On the H shaped steel f edge of a wing, offer six connecting hole unit, there are four connecting holes each connecting hole unit, and the distance in each connecting hole unit between horizontal, longitudinal two connecting holes is 2a; Be positioned on the H shaped steel g edge of a wing of another right-angle side and offer five connecting hole unit; The interlude on the H shaped steel e edge of a wing offers seven connecting hole unit, and the two end portions on the H shaped steel e edge of a wing offers the connecting hole of two group of two row's eight row, and the distance of horizontal two adjacent connecting holes is a, and the distance of longitudinal two adjacent connecting holes is 2a; Between the web of each H shaped steel and the edge of a wing, be also welded with a plurality of reinforcing gussets, reinforce the center that gusset is positioned at each connecting hole unit transverse; Between H shaped steel f and H shaped steel e, be welded with a reinforcing H shaped steel a parallel with H shaped steel g, reinforce between H shaped steel a and H shaped steel e, H shaped steel g and be welded with two sections of reinforcing H shaped steel b; Reinforce H shaped steel a, reinforce the web of H shaped steel b and the web isoplanar of H shaped steel e, reinforce H shaped steel a and reinforce vertical setting of H shaped steel b, and between reinforcing H shaped steel a two edges of a wing, the corresponding position that reinforces the H shaped steel b edge of a wing is welded with reinforcing gusset; Between each adjacent H shaped steel of trivet seat, and reinforce H shaped steel a and be all welded with and the isoplanar triangular reinforced steel plate of web with H shaped steel f junction, reinforcing H shaped steel b and H shaped steel g junction; Described trivet holder structure is firm, and mechanical strength is high, and owing to being provided with the reinforcing H shaped steel a of right-angled intersection form and reinforcing H shaped steel b, makes the H type steel on each limit all can bear larger pressure.
The second described angle brace seat is welded and forms successively by three sections of H shaped steel, and the web of three sections of H shaped steel is in the same plane, and three sections of H shaped steel surround an isosceles right triangle; The H shaped steel i that is positioned at hypotenuse is welded with a H shaped steel h in 1/3 position on the edge of a wing outwardly, and the both ends of H shaped steel h and H shaped steel i are all welded with junction plate; H shaped steel i is positioned at H shaped steel h mono-side and on the edge of a wing, offers the connecting hole that 2 group of two row four is listed as outwardly, and the distance of horizontal two adjacent connecting holes is a, and the distance of longitudinal two adjacent connecting holes is 2a; H shaped steel i is positioned at H shaped steel h opposite side and on the edge of a wing, offers one group of two row, 11 row and one group of two connecting hole that row six is listed as outwardly; Between web inside H shaped steel i and the edge of a wing, be welded with a plurality of reinforcing gussets, reinforce the position that gusset is positioned at H shaped steel h two ends, and the position between two adjacent groups connecting hole; The H shaped steel j end that is positioned at right-angle side is welded with junction plate, and the H shaped steel j edge of a wing outwardly offers the connecting hole of six group of two row's two row; The end of H shaped steel k and the edge of a wing vertical welding of H shaped steel j next-door neighbour end that are positioned at another right-angle side, the other end of the k of H shaped steel and H shaped steel i are away from one end welding of H shaped steel h; The H shaped steel k edge of a wing outwardly offers the connecting hole of three group of two row's two row; H shaped steel k is welded with a guide plate passing for steel strand near the end position of H shaped steel i, and H shaped steel i is welded with a steel strand fixed head near one end of H shaped steel k; Between H shaped steel i, H shaped steel j and H shaped steel k, be welded with a junction steel plate, the position that junction steel plate is positioned at the second angle brace seat middle part 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 guarantee good supporting role, and the space that can make three groups of angle braces occupy again less simultaneously, reduce the difficulty of soil excavation, have improved the efficiency of foundation pit construction.
Compared with prior art, the invention has the beneficial effects as follows: by three groups of angle braces are set in foundation ditch apex portion, and by adjusting jack, produce prestressing force near two groups of angle braces of vertex position, the space that this kind of supporting and protection structure takies is on the whole little, be convenient to the excavation of foundation ditch, raise the efficiency, meanwhile, the member of supporting and protection structure is mostly standard-sized section bar, by bolt part, connect, install, remove all very convenient, repeatedly recycling rate of waterused is high, has reduced on the whole the cost of pattern foundation pit supporting structure.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of foundation pit support system.
Fig. 2 is the syndeton schematic diagram that encloses 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 that encloses purlin shaped steel.
Fig. 5 is the structural representation of triangle connection element.
Fig. 6 is the structural representation of looking up direction of Fig. 5.
Fig. 7 is the angle brace structural representation of a vertex position of foundation ditch.
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 of overlooking direction of Fig. 9.
Figure 11 is the structural representation of trivet seat.
Figure 12 is the syndeton schematic diagram of crossbeam.
The specific embodiment
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 angle brace structure 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 shaped steel, on the edge of a wing of its both sides, equidistantly offer connecting hole group, each connecting hole group is by two connecting hole cell formations, there are six connecting holes each connecting hole unit, six connecting holes are along enclosing the formal distribution of purlin shaped steel length direction with two row's three row, laterally the distance between two adjacent connecting holes is a, and longitudinally the distance between two adjacent connecting holes is 2a; The two ends of enclosing purlin shaped steel are fixedly welded with junction plate 01, offer four connecting holes with two row's two row formal distributions on junction plate, and the distance between horizontal, longitudinal two adjacent connecting holes is 2a.
Described rebar connector includes L shaped reinforcing bar 701, the minor face of L shaped reinforcing bar and the reinforcing bar in capping beam are welded and fixed, end, the long limit coaxial welding of L shaped reinforcing bar has the female reinforcing bar connector 702 that can attachment screw of tool, thereby is connected with reinforcing bar connector and will encloses purlin shaped steel and capping beam is fixed through the screw 703 that encloses purlin shaped steel.
Enclosing between purlin shaped steel of foundation ditch vertex position both sides, by two triangle connection elements 20, connect, one of them triangle connection element is connected between two junction plates that enclose 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, offers six connecting holes on each linking arm, is vertically welded with the gusset plate 201 of an isosceles right triangle between two linking arms.
At foundation ditch, near each place, summit, be provided with 3 groups of angle braces, include 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, the 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 between the other end of strut and another the first angle brace seat, are connected with a jack 30.
Between the strut of two sub-thread angle braces, be connected with 14, two channel-section steels of two channel-section steels 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 a stiffener, be positioned on the steel plate of hypotenuse and offer six connecting holes, six connecting holes along hypotenuse length direction with two row's three column distributions, laterally the distance of adjacent two connecting holes is a, and longitudinally the distance of adjacent two connecting holes is 2a; Be positioned on the steel plate of a right-angle side and offer four connecting holes; Four connecting holes are with two row's two column distributions, and distances horizontal, longitudinally adjacent two connecting holes are 2a; And the position deflection that is positioned at six connecting holes on the steel plate of hypotenuse is not offered steel plate one 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 two adjacent enclosing between purlin shaped steel, 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 and 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 shaped steel in cement mixing pile by bolt; Described beam erection is on bracket part, and crossbeam and bracket part are bolted.
Between three described struts, be evenly connected with 4 and connect cover plate, connect cover plate mutually vertical with strut; Between three described struts, be also connected with 3 channel-section steels, 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 and is formed by three sections of H shaped steel, and the web of three sections of H shaped steel is in the same plane, and three sections of H shaped steel surround an isosceles right triangle; The H shaped steel e234 two ends that are positioned at hypotenuse stretch out, and end is fixedly welded with junction plate, and a H shaped steel f235 end that is positioned at right-angle side is also connected with a junction plate; On the edge of a wing of each H shaped steel periphery of described trivet seat, offer connecting hole; On the H shaped steel f edge of a wing, offer six connecting hole unit, there are four connecting holes each connecting hole unit, and the distance in each connecting hole unit between horizontal, longitudinal two connecting holes is 2a; Be positioned on the H shaped steel g236 edge of a wing of another right-angle side and offer five connecting hole unit; The interlude on the H shaped steel e edge of a wing offers seven connecting hole unit, and the two end portions on the H shaped steel e edge of a wing offers the connecting hole of two group of two row's eight row, and the distance of horizontal two adjacent connecting holes is a, and the distance of longitudinal two adjacent connecting holes is 2a; Between the web of each H shaped steel and the edge of a wing, be also welded with a plurality of reinforcing gussets, reinforce the center that gusset is positioned at each connecting hole unit transverse; Between H shaped steel f and H shaped steel e, be welded with a reinforcing H shaped steel a231 parallel with H shaped steel g, reinforce between H shaped steel a and H shaped steel e, H shaped steel g and be welded with two sections of reinforcing H shaped steel b232; Reinforce H shaped steel a, reinforce the web of H shaped steel b and the web isoplanar of H shaped steel e, reinforce H shaped steel a and reinforce vertical setting of H shaped steel b, and between reinforcing H shaped steel a two edges of a wing, the corresponding position that reinforces the H shaped steel b edge of a wing is welded with reinforcing gusset; Between each adjacent H shaped steel of trivet seat, and reinforce H shaped steel a and be all welded with and the isoplanar triangular reinforced steel plate 233 of web with H shaped steel f junction, reinforcing H shaped steel b and H shaped steel g junction.
On the long limit of foundation ditch, be provided with two or more fish belly sill devices, fish belly sill device includes 2 the second angle brace seats 22,5 web member supports 17 between two the second angle brace seats, and be fixed between two the second angle brace seats and to each web member support and apply prestressed steel strand 50.
The second described angle brace seat is welded and forms successively by three sections of H shaped steel, and the web of three sections of H shaped steel is in the same plane, and three sections of H shaped steel surround an isosceles right triangle; The H shaped steel i221 that is positioned at hypotenuse is welded with a H shaped steel h222 in 1/3 position on the edge of a wing outwardly, and the both ends of H shaped steel h and H shaped steel i are all welded with junction plate; H shaped steel i is positioned at H shaped steel h mono-side and on the edge of a wing, offers the connecting hole that 2 group of two row four is listed as outwardly, and the distance of horizontal two adjacent connecting holes is a, and the distance of longitudinal two adjacent connecting holes is 2a; H shaped steel i is positioned at H shaped steel h opposite side and on the edge of a wing, offers one group of two row, 11 row and one group of two connecting hole that row six is listed as outwardly; Between web inside H shaped steel i and the edge of a wing, be welded with a plurality of reinforcing gussets, reinforce the position that gusset is positioned at H shaped steel h two ends, and the position between two adjacent groups connecting hole; The H shaped steel j223 end that is positioned at right-angle side is welded with junction plate, and the H shaped steel j edge of a wing outwardly offers the connecting hole of six group of two row's two row; The end of H shaped steel k224 and the edge of a wing vertical welding of H shaped steel j next-door neighbour end that are positioned at another right-angle side, the other end of the k of H shaped steel and H shaped steel i are away from one end welding of H shaped steel h; The H shaped steel k edge of a wing outwardly offers the connecting hole of three group of two row's two row; H shaped steel k is welded with a guide plate 225 passing for steel strand near the end position of H shaped steel i, and H shaped steel i is welded with a steel strand fixed head 226 near one end of H shaped steel k; Between H shaped steel i, H shaped steel j and H shaped steel k, be welded with a junction steel plate 227, the position that junction steel plate is positioned at the second angle brace seat middle part is provided with two steel strand anchorages 228.
Described trivet seat is general only for the strut of connecting angle brace, and the second described angle brace seat is while connecting angle brace and fish belly sill device conventionally.Wherein said steel strand anchorage, for the steel strand of fish belly sill device are applied to pulling force, makes each web member of fish belly sill produce prestressing force to the cement mixing pile metope of foundation pit side-wall, guarantees 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 strand 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 an angle brace structure 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 shaped steel, on the edge of a wing of its both sides, equidistantly offer connecting hole group, each connecting hole group is by two connecting hole cell formations, there are six connecting holes each connecting hole unit, six connecting holes are along enclosing the formal distribution of purlin shaped steel length direction with two row's three row, laterally the distance between two adjacent connecting holes is a, and longitudinally the distance between two adjacent connecting holes is 2a; The two ends of enclosing purlin shaped steel are fixedly welded with junction plate, offer four connecting holes with two row's two row formal distributions on junction plate, and the distance between horizontal, longitudinal two adjacent connecting holes is 2a;
Described rebar connector includes L shaped reinforcing bar, the minor face of L shaped reinforcing bar and the reinforcing bar in capping beam are welded and fixed, end, the long limit coaxial welding of L shaped reinforcing bar has the female reinforcing bar connector that can attachment screw of tool, thereby is connected with reinforcing bar connector and will encloses purlin shaped steel and capping beam is fixed through the screw that encloses purlin shaped steel;
Enclosing between purlin shaped steel of foundation ditch vertex position both sides, by two triangle connection elements, connect, one of them triangle connection element is connected between two junction plates that enclose 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, offers six connecting holes on each linking arm, is vertically welded with the gusset plate of an isosceles right triangle between two linking arms;
At foundation ditch, near each place, summit, be provided with 3 groups of angle braces, include 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, the 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 between the other end of strut and another the first angle brace seat, are connected with a jack;
Between the strut of two sub-thread angle braces, be connected with two channel-section steels, 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 a stiffener, be positioned on the steel plate of hypotenuse and offer six connecting holes, six connecting holes along hypotenuse length direction with two row's three column distributions, laterally the distance of adjacent two connecting holes is a, and longitudinally the distance of adjacent two connecting holes is 2a; Be positioned on the steel plate of a right-angle side and offer four connecting holes; Four connecting holes are with two row's two column distributions, and distances horizontal, longitudinally adjacent two connecting holes are 2a; And the position deflection that is positioned at six connecting holes on the steel plate of hypotenuse is not offered steel plate one 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 two adjacent enclosing between purlin shaped steel, 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 and 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 shaped steel in cement mixing pile by bolt; Described beam erection is on bracket part, and crossbeam and bracket part are bolted;
Between three described struts, be evenly connected with 4 and connect cover plate, connect cover plate mutually vertical with strut; Between three described struts, be also connected with 3 channel-section steels, 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 and is formed by three sections of H shaped steel, and the web of three sections of H shaped steel is in the same plane, and three sections of H shaped steel surround an isosceles right triangle; The H shaped steel e two ends that are positioned at hypotenuse stretch out, and end is fixedly welded with junction plate, and a H shaped steel f end that is positioned at right-angle side is also connected with a junction plate; On the edge of a wing of each H shaped steel periphery of described trivet seat, offer connecting hole; On the H shaped steel f edge of a wing, offer six connecting hole unit, there are four connecting holes each connecting hole unit, and the distance in each connecting hole unit between horizontal, longitudinal two connecting holes is 2a; Be positioned on the H shaped steel g edge of a wing of another right-angle side and offer five connecting hole unit; The interlude on the H shaped steel e edge of a wing offers seven connecting hole unit, and the two end portions on the H shaped steel e edge of a wing offers the connecting hole of two group of two row's eight row, and the distance of horizontal two adjacent connecting holes is a, and the distance of longitudinal two adjacent connecting holes is 2a; Between the web of each H shaped steel and the edge of a wing, be also welded with a plurality of reinforcing gussets, reinforce the center that gusset is positioned at each connecting hole unit transverse; Between H shaped steel f and H shaped steel e, be welded with a reinforcing H shaped steel a parallel with H shaped steel g, reinforce between H shaped steel a and H shaped steel e, H shaped steel g and be welded with two sections of reinforcing H shaped steel b; Reinforce H shaped steel a, reinforce the web of H shaped steel b and the web isoplanar of H shaped steel e, reinforce H shaped steel a and reinforce vertical setting of H shaped steel b, and between reinforcing H shaped steel a two edges of a wing, the corresponding position that reinforces the H shaped steel b edge of a wing is welded with reinforcing gusset; Between each adjacent H shaped steel of trivet seat, and reinforce H shaped steel a and be all welded with and the isoplanar triangular reinforced steel plate of web with H shaped steel f junction, reinforcing H shaped steel b and H shaped steel g junction;
The second described angle brace seat is welded and forms successively by three sections of H shaped steel, and the web of three sections of H shaped steel is in the same plane, and three sections of H shaped steel surround an isosceles right triangle; The H shaped steel i that is positioned at hypotenuse is welded with a H shaped steel h in 1/3 position on the edge of a wing outwardly, and the both ends of H shaped steel h and H shaped steel i are all welded with junction plate; H shaped steel i is positioned at H shaped steel h mono-side and on the edge of a wing, offers the connecting hole that 2 group of two row four is listed as outwardly, and the distance of horizontal two adjacent connecting holes is a, and the distance of longitudinal two adjacent connecting holes is 2a; H shaped steel i is positioned at H shaped steel h opposite side and on the edge of a wing, offers one group of two row, 11 row and one group of two connecting hole that row six is listed as outwardly; Between web inside H shaped steel i and the edge of a wing, be welded with a plurality of reinforcing gussets, reinforce the position that gusset is positioned at H shaped steel h two ends, and the position between two adjacent groups connecting hole; The H shaped steel j end that is positioned at right-angle side is welded with junction plate, and the H shaped steel j edge of a wing outwardly offers the connecting hole of six group of two row's two row; The end of H shaped steel k and the edge of a wing vertical welding of H shaped steel j next-door neighbour end that are positioned at another right-angle side, the other end of the k of H shaped steel and H shaped steel i are away from one end welding of H shaped steel h; The H shaped steel k edge of a wing outwardly offers the connecting hole of three group of two row's two row; H shaped steel k is welded with a guide plate passing for steel strand near the end position of H shaped steel i, and H shaped steel i is welded with a steel strand fixed head near one end of H shaped steel k; Between H shaped steel i, H shaped steel j and H shaped steel k, be welded with a junction steel plate, the position that junction steel plate is positioned at the second angle brace seat middle part 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111549786A (en) * | 2020-04-17 | 2020-08-18 | 浙江吉通地空建筑科技有限公司 | Detachable concave embedded type foundation pit inner supporting structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002227204A (en) * | 2001-01-29 | 2002-08-14 | Maeda Corp | Earth retaining method of excavation section |
| 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 member |
| 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 |
-
2014
- 2014-05-28 CN CN201410230994.6A patent/CN103981871B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002227204A (en) * | 2001-01-29 | 2002-08-14 | Maeda Corp | Earth retaining method of excavation section |
| 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 member |
| 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111549786A (en) * | 2020-04-17 | 2020-08-18 | 浙江吉通地空建筑科技有限公司 | Detachable concave embedded type foundation pit inner supporting structure |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN103981871B (en) | 2016-01-06 |
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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 |