CN103437367A - Fish-belly sill component of inner supporting system for retaining and protection of foundation pit - Google Patents

Abstract

The invention discloses a fish-belly sill component of an inner supporting system for retaining and protection of a foundation pit. The fish-belly sill component of the inner supporting system for the retaining and the protection of the foundation pit comprises a bottom chord beam component made of H-type steel, a web member component, first inclined supporting components and second inclined supporting components. According to the bottom chord beam component, flange plates are fixed at the two ends of the bottom chord beam component, reinforcing plates, lifting lug plates and water drain holes are arranged in grooves in the two sides of the bottom chord beam component, and connecting holes are formed in a wing plate on the outer side of the bottom chord beam component; according to the first inclined supporting components and the second inclined supporting components, the two end faces of the first inclined supporting components and the two end faces of the second inclined supporting components are 45-degree diagonal planes and are welded with flange plates, one end of each inclined supporting component is in bolt connection with the web member component, the other end of each inclined supporting component is in bolt connection with the bottom chord beam component, lifting lug plates and water drain holes are arranged in the grooves in the two sides of each inclined supporting member, the two first supporting components are symmetrically arranged on the two sides of the web member component, and the two second inclined supporting components are symmetrically arranged on the two sides of the web member component; the bottom chord beam component, the web member component, the web plates of the H-type steel of the first inclined supporting components and the web plates of the H-type steel of the second inclined supporting components are located in the same plane. According to the technical scheme, the fish-belly sill component of the inner supporting system for the retaining and the protection of the foundation pit is convenient to disassemble and assemble and capable of being used repeatedly for multiple times, and achieves the purposes of saving construction cost and facilitating construction.

Description

A kind of fish belly sill parts of pattern foundation pit supporting structure inner support system

Technical field

The present invention relates to technical field of civil engineering, relate in particular to a kind of fish belly sill parts of pattern foundation pit supporting structure inner support system.

Background technology

In the Soft Soil Foundation Pit engineering, steel concrete or steel pipe support supporting and protection structure, in order to reduce the distortion of foundation ditch, increase stability, and method commonly used is at present: increase the reinforced concrete fortifield village purlin quantity of size, increase steel pipe support in the street, reduce spacing etc.But this will increase the consumption of constructional materials greatly, also reduced effective construction space in foundation ditch.Due to the steel support structure adopted at present, mainly using single shaped steel or steel pipe as brace summer, do not form effectively and connect between every shaped steel or steel pipe, can not be as combining structure work, so their support rigidity is lower, the power can bear is relatively limited, and the larger foundation ditch for span, adopt existing steel shotcrete support to be difficult to control its distortion.These support members are owing to being all much to make by the site operation requirement, the connection dimension that there is no standard, can't reach between all parts and exchange and general purpose, after causing foundation pit construction to complete, most of support components all become expendable consumed product, can not reuse.

Summary of the invention

The present invention is directed to above-mentioned the deficiencies in the prior art, a kind of fish belly sill parts of pattern foundation pit supporting structure inner support system are provided, easy accessibility, can repeatedly reuse, and reaches the purpose of saving construction cost, convenient construction.

Technical scheme of the present invention is achieved in that

A kind of fish belly sill parts of pattern foundation pit supporting structure inner support system, comprise the lower-cord beam parts that H shaped steel is made, the web member parts, the first diagonal brace parts and the second diagonal brace parts, the both ends of the surface of the H shaped steel of lower-cord beam parts are cross section and are welded with square flange plate A, have four flange hole A on square flange plate A, four flange hole A are square four jiaos of distributions, on the same group, the pitch of holes of neighbouring two flange hole As adjacent with left and right is 200mm, the diameter of described flange hole A is 28mm, be equipped with flange strengthening support gusset in the grooves on two sides of the H shaped steel of described lower-cord beam parts, flange strengthening support gusset is vertical with the web of the H shaped steel of square flange plate A and lower-cord beam parts and be welded and fixed respectively, be provided with a plurality of stiffener A and at least two shackle plate A in the grooves on two sides of the H shaped steel of described lower-cord beam parts, stiffener A is vertical with wing plate with the web of the H shaped steel of lower-cord beam parts and be welded and fixed respectively, have lifting hole(eyelet) vertical with wing plate with the web of the H shaped steel of lower-cord beam parts and be welded and fixed respectively on shackle plate A, have drain hole A on the web of the H shaped steel of lower-cord beam parts, have a plurality of connecting holes on the H shaped steel outside wing plate of described lower-cord beam parts, six connecting holes are one group, six connecting holes of every group are divided into two rows and corresponding setting one by one up and down, the pitch of holes of two neighbouring connecting holes is 200mm, the pitch of holes of two connecting holes that left and right is adjacent is 100mm, the diameter of connecting hole is 28mm, the both ends of the surface of the H shaped steel of described web member parts are cross section and are welded with square flange plate B, square flange plate B is identical with square flange plate A structure, the inboard wing plate centre position of the square flange plate B of one end of described web member parts and the H shaped steel of described lower-cord beam parts is bolted to connection, be provided with a plurality of stiffener B in the grooves on two sides of the H shaped steel of described web member parts, stiffener B is vertical with wing plate with the web of the H shaped steel of web member parts and be welded and fixed respectively, on the web of the H shaped steel of web member parts, has drain hole B, the both ends of the surface of the H shaped steel of described the first diagonal brace parts are 45 ° of scarves and are welded with rectangular flange plate A, rectangular flange plate A is provided with 10 flange hole B, divide in a symmetrical arrangement two groups, five flange hole B on the same group are distributed in four jiaos and base mid point of isosceles trapezoid, the trapezoidal bottom side length of these isosceles is 200mm, top margin is long is 100mm, height is 50mm, the diameter of flange hole B is 28mm, two the first diagonal brace parts are symmetricly set on respectively the both sides of described web member parts, one side wing of the rectangular flange plate A of the first diagonal brace parts one end and the H shaped steel of web member parts is bolted to connection, the inboard wing plate of the rectangular flange plate A of the first diagonal brace parts other end and the H shaped steel of lower-cord beam parts is bolted to connection, be provided with at least one shackle plate B in the grooves on two sides of the H shaped steel of the first diagonal brace parts, have lifting hole(eyelet) vertical with wing plate with the web of the H shaped steel of the first diagonal brace parts and be welded and fixed respectively on shackle plate B, have drain hole C on the web of the H shaped steel of the first diagonal brace parts, the both ends of the surface of the H shaped steel of described the second diagonal brace parts are 45 ° of scarves and are welded with rectangular flange plate B, rectangular flange plate B is identical with rectangular flange plate A structure, 1/3～1/2 of the length that the length of the second diagonal brace parts is the first diagonal brace parts, two the second diagonal brace parts are symmetricly set on respectively the both sides of described web member parts, one side wing of the rectangular flange plate B of the second diagonal brace parts one end and the H shaped steel of web member parts is bolted to connection, the inboard wing plate of the rectangular flange plate B of the second diagonal brace parts other end and the H shaped steel of lower-cord beam parts is bolted to connection, have drain hole D on the web of the H shaped steel of the second diagonal brace parts, the web of the H shaped steel of lower-cord beam parts, web member parts, the first diagonal brace parts and the second diagonal brace parts is in same plane.

The present invention, owing to having adopted above technical scheme, is comprised of major parts such as lower-cord beam, web member, diagonal braces, and the standard size connecting hole is arranged on lower-cord beam, can be linked and packed with the other standards parts, realizes the assembling purpose of whole fish belly sill system.The fish belly sill trunk parts that this standarized component is prestress application in the inner support system, a plurality of these parts that differed by size of the same type are combined into the cage construction of fish belly sill, and diagonal brace can allow whole fish belly sill force dispersion, can bear larger power.Diagonal brace, web member are connected with form of flanges with lower-cord beam, easy disassembly and transportation.Easy accessibility, can realize the matching requirements of plurality of specifications foundation ditch, can repeatedly reuse, and reaches the purpose of saving construction cost.The inner support system of using this cover standard component to assemble out with ad hoc fashion, meeting in prestressed situation, can save larger construction space, convenient construction.Be provided with the stiffener of lifting hole(eyelet), conveniently carry, remove and install and all parts that encloses the purlin parts is provided with the connection dimension of standard, reached between all parts and exchanged and general purpose.

The accompanying drawing explanation

Fig. 1 is structural representation of the present invention;

Fig. 2 is the upward view of Fig. 1;

Fig. 3 is that the A of Fig. 1 is to view;

Fig. 4 is the structural representation of rectangular flange plate A.

The specific embodiment

Below in conjunction with accompanying drawing, the specific embodiment of the present invention is made a detailed explanation.

Embodiment 1:

The fish belly sill parts of a kind of pattern foundation pit supporting structure inner support system as shown in Figure 1, comprise the lower-cord beam parts 1 that H shaped steel is made, web member parts 2, the first diagonal brace parts 3, the 4 and second diagonal brace parts 5, 6, the both ends of the surface of the H shaped steel of lower-cord beam parts 1 are cross section and are welded with square flange plate A11, as shown in Figure 3, have four flange hole A111 on square flange plate A11, four flange hole A111 are square four jiaos of distributions, on the same group, the pitch of holes of neighbouring two flange hole A111s adjacent with left and right is 200mm, the diameter of described flange hole A111 is 28mm, be equipped with flange strengthening support gusset 12 in the grooves on two sides of the H shaped steel of described lower-cord beam parts 1, flange strengthening support gusset 12 is vertical with the web of the H shaped steel of square flange plate A11 and lower-cord beam parts 1 and be welded and fixed respectively, be provided with a plurality of stiffener A13 and at least two shackle plate A15 in the grooves on two sides of the H shaped steel of described lower-cord beam parts 1, stiffener A13 is vertical with wing plate with the web of the H shaped steel of lower-cord beam parts 1 and be welded and fixed respectively, have lifting hole(eyelet) vertical with wing plate with the web of the H shaped steel of lower-cord beam parts 1 and be welded and fixed respectively on shackle plate A15, have drain hole A14 on the web of the H shaped steel of lower-cord beam parts 1, as shown in Figure 2, have a plurality of connecting holes 16 on the H shaped steel outside wing plate of described lower-cord beam parts 1, six connecting holes 16 are one group, six connecting holes 16 of every group are divided into two rows and corresponding setting one by one up and down, the pitch of holes of two neighbouring connecting holes 16 is 200mm, the pitch of holes of two connecting holes 16 that left and right is adjacent is 100mm, the diameter of connecting hole 16 is 28mm, the both ends of the surface of the H shaped steel of described web member parts 2 are cross section and are welded with square flange plate B21, square flange plate B21 is identical with square flange plate A11 structure, the inboard wing plate centre position of the square flange plate B21 of one end of described web member parts 2 and the H shaped steel of described lower-cord beam parts 1 is bolted to connection, be provided with a plurality of stiffener B23 in the grooves on two sides of the H shaped steel of described web member parts 2, stiffener B23 is vertical with wing plate with the web of the H shaped steel of web member parts 2 and be welded and fixed respectively, on the web of the H shaped steel of web member parts 2, has drain hole B22, described the first diagonal brace parts 3, the both ends of the surface of 4 H shaped steel are 45 ° of scarves and are welded with rectangular flange plate A31, as shown in Figure 4, rectangular flange plate A31 is provided with 10 flange hole B311, divide in a symmetrical arrangement two groups, five flange hole B311 on the same group are distributed in four jiaos and base mid point of isosceles trapezoid, the trapezoidal bottom side length of these isosceles is 200mm, top margin is long is 100mm, height is 50mm, the diameter of flange hole B311 is 28mm, two the first diagonal brace parts 3, 4 are symmetricly set on respectively the both sides of described web member parts 2, the first diagonal brace parts 3, one side wing of the rectangular flange plate A31 of 4 one ends and the H shaped steel of web member parts 2 is bolted to connection, the first diagonal brace parts 3, the inboard wing plate of the rectangular flange plate A31 of 4 other ends and the H shaped steel of lower-cord beam parts 1 is bolted to connection, the first diagonal brace parts 3, be provided with at least one shackle plate B32 in the grooves on two sides of 4 H shaped steel, on shackle plate B32, have lifting hole(eyelet) and respectively with the first diagonal brace parts 3, the web of 4 H shaped steel is vertical with wing plate and be welded and fixed, the first diagonal brace parts 3, have drain hole C33 on the web of 4 H shaped steel, described the second diagonal brace parts 5, the both ends of the surface of 6 H shaped steel are 45 ° of scarves and are welded with rectangular flange plate B51, rectangular flange plate B51 is identical with rectangular flange plate A31 structure, the second diagonal brace parts 5, 6 length is the first diagonal brace parts 3, 1/3～1/2 of 4 length, two the second diagonal brace parts 5, 6 are symmetricly set on respectively the both sides of described web member parts 2, the second diagonal brace parts 5, one side wing of the rectangular flange plate B51 of 6 one ends and the H shaped steel of web member parts 2 is bolted to connection, the second diagonal brace parts 5, the inboard wing plate of the rectangular flange plate B51 of 6 other ends and the H shaped steel of lower-cord beam parts 1 is bolted to connection, the second diagonal brace parts 5, have drain hole D52 on the web of 6 H shaped steel, lower-cord beam parts 1, web member parts 2, the first diagonal brace parts 3, the 4 and second diagonal brace parts 5, the web of 6 H shaped steel is in same plane.

Parts of the present invention are comprised of parts such as the lower-cord beam of H section steel manufacture, web member, diagonal braces, with flange, connect each other, convenient for assembly and transportation.There is standard flange on the web member top, supports with steel strand or support is connected, and the lower-cord beam two ends are also standard flange, enclose purlin with parts of the same type or steel and are connected, and on flange, the standard bore dia is 28mm, and logical fitted position is 200 * 200mm, and there is the reinforcement support angle flange inboard.Lower-cord beam is stressed member maximum in these parts, yielding, therefore be connected to the polylith stiffener at H shaped steel internal welding, it is 200mm that two row's spacings are arranged on the lower-cord beam lateral surface, the gauge orifice that diameter is 28mm, pitch of holes is 100mm, six holes are a small group, and the spacing between group is 200mm, large group of 12 Kong Weiyi, spacing between large group is 400mm, with this standard size with enclose purlin and other standard components and assemble and reach agile and all-purpose purpose.Be equipped with a plurality of drain holes on lower-cord beam, web member, diagonal brace, so that at rain weather or reach the purpose of draining in the water construction environment, reduce the corrosion of these parts.Weld hanger (symmetry) on lower-cord beam and diagonal brace, heavier because of this component weight, can't must use lifting appliance with manually realizing assembling, be the safety of guaranteeing to guarantee in hoisting process lifting, this hanger the H steel inboard with three welding, guarantee its intensity.

It is emphasized that: above is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, any simple modification, equivalent variations and modification that every foundation technical spirit of the present invention is done above embodiment, all still belong in the scope of technical solution of the present invention.

Claims (1)

1. the fish belly sill parts of a pattern foundation pit supporting structure inner support system, it is characterized in that, comprise the lower-cord beam parts (1) that H shaped steel is made, web member parts (2), the first diagonal brace parts (3, 4) and the second diagonal brace parts (5, 6), the both ends of the surface of the H shaped steel of lower-cord beam parts (1) are cross section and are welded with square flange plate A(11), square flange plate A(11) have four flange hole A(111 on), four flange hole A(111) be square four jiaos of distributions, neighbouring two the flange hole A(111s adjacent with left and right on the same group) pitch of holes is 200mm, described flange hole A(111) diameter is 28mm, be equipped with flange strengthening support gusset (12) in the grooves on two sides of the H shaped steel of described lower-cord beam parts (1), flange strengthening support gusset (12) respectively with square flange plate A(11) vertical with the web of the H shaped steel of lower-cord beam parts (1) and be welded and fixed, be provided with a plurality of stiffener A(13 in the grooves on two sides of the H shaped steel of described lower-cord beam parts (1)) and at least two shackle plate A(15), stiffener A(13) vertical with wing plate with the web of the H shaped steel of lower-cord beam parts (1) and be welded and fixed respectively, shackle plate A(15) have lifting hole(eyelet) vertical with wing plate with the web of the H shaped steel of lower-cord beam parts (1) and be welded and fixed respectively on, have drain hole A(14 on the web of the H shaped steel of lower-cord beam parts (1)), have a plurality of connecting holes (16) on the H shaped steel outside wing plate of described lower-cord beam parts (1), six connecting holes (16) are one group, six connecting holes (16) of every group are divided into two rows and corresponding setting one by one up and down, the pitch of holes of neighbouring two connecting holes (16) is 200mm, the pitch of holes of two connecting holes (16) that left and right is adjacent is 100mm, the diameter of connecting hole (16) is 28mm, the both ends of the surface of the H shaped steel of described web member parts (2) are cross section and are welded with square flange plate B(21), square flange plate B(21) with square flange plate A(11) structure is identical, the square flange plate B(21 of one end of described web member parts (2)) with the inboard wing plate centre position of the H shaped steel of described lower-cord beam parts (1), be bolted to connection, be provided with a plurality of stiffener B(23 in the grooves on two sides of the H shaped steel of described web member parts (2)), stiffener B(23) vertical with wing plate with the web of the H shaped steel of web member parts (2) and be welded and fixed respectively, have drain hole B(22 on the web of the H shaped steel of web member parts (2)), described the first diagonal brace parts (3, the both ends of the surface of H shaped steel 4) are 45 ° of scarves and are welded with rectangular flange plate A(31), rectangular flange plate A(31) be provided with 10 flange hole B(311), divide in a symmetrical arrangement two groups, five flange hole B(311 on the same group) be distributed in four jiaos and base mid point of isosceles trapezoid, the trapezoidal bottom side length of these isosceles is 200mm, top margin is long is 100mm, height is 50mm, flange hole B(311) diameter is 28mm, two the first diagonal brace parts (3, 4) be symmetricly set on respectively the both sides of described web member parts (2), the first diagonal brace parts (3, 4) the rectangular flange plate A(31 of an end) with a side wing of the H shaped steel of web member parts (2), be bolted to connection, the first diagonal brace parts (3, 4) the rectangular flange plate A(31 of the other end) with the inboard wing plate of the H shaped steel of lower-cord beam parts (1), be bolted to connection, the first diagonal brace parts (3, be provided with at least one shackle plate B(32 in the grooves on two sides of H shaped steel 4)), shackle plate B(32) on, have lifting hole(eyelet) and respectively with the first diagonal brace parts (3, the web of H shaped steel 4) is vertical with wing plate and be welded and fixed, the first diagonal brace parts (3, have drain hole C(33 on the web of H shaped steel 4)), described the second diagonal brace parts (5, the both ends of the surface of H shaped steel 6) are 45 ° of scarves and are welded with rectangular flange plate B(51), rectangular flange plate B(51) with rectangular flange plate A(31) structure is identical, the second diagonal brace parts (5, 6) length is the first diagonal brace parts (3, 4) 1/3～1/2 of length, two the second diagonal brace parts (5, 6) be symmetricly set on respectively the both sides of described web member parts (2), the second diagonal brace parts (5, 6) the rectangular flange plate B(51 of an end) with a side wing of the H shaped steel of web member parts (2), be bolted to connection, the second diagonal brace parts (5, 6) the rectangular flange plate B(51 of the other end) with the inboard wing plate of the H shaped steel of lower-cord beam parts (1), be bolted to connection, the second diagonal brace parts (5, have drain hole D(52 on the web of H shaped steel 6)), the web of the H shaped steel of lower-cord beam parts (1), web member parts (2), the first diagonal brace parts (3,4) and the second diagonal brace parts (5,6) is in same plane.

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