CN1877050A - Bearing type base plate member - Google Patents

Abstract

The invention relates to a bearing bottom plate, which comprises a bottom plate (1). Wherein, it is characterized in that: it also comprises at least one crossed truss support (2) on the bottom plate (1) to be connected; the truss support (3) has upper arc rod (3), lower arc rod (4), and incline web rod (5), while the incline web rod (5) is connected to the upper and lower arc rods (3, 4); at least one side of truss support (2) is arranged with at least one chamber element (6); therefore, the invention can has high strength and high rigidity, which can improve the embed function between on-site poured concrete and the net support, to improve the anti-share ability of layered interface between on-site concrete and mold plate. The invention can be used in variable on-site steel bar concrete, etc, especially the non-beam floor cover.

Description

A kind of bearing type base plate member

(1) technical field

The present invention relates to a kind of bearing type base plate member.

(2) background technology

At present, the main Cast-in-place concrete monobloc cast that adopts such as the superstructure of multi-rise building, roof system, general job practices is to set up the interim scaffold of regulation at the construction field (site), and sets base plate, and configuration reinforcement as required, the concrete cast is carried out at the scene then.The base plate construction that replaces using in this scene be in advance at the prefabricated base plate of plant-manufactured what is called, then this prefabricated base plate is moved into the scene, be installed on the corresponding scaffold and construct, because its operation advanced person, can the reduction of erection time, so be widely adopted in recent years.The base plate that this class is made in advance has profiled sheet, concrete base plate and prestress concrete base plate etc., and still, also there are some problems in the prefabricated base plate of this class in In-situ cast concrete board construction application processes such as Cast-in-place Concrete Building Floor, roof system, and is too high as cost, and weight is too big, and is light inadequately.When for example adopting profiled sheet as the permanent base plate do not removed, though the intensity height, rigidity is big, the cost height, and simultaneously, the easy corrosion of the steel sole plate that exposes has a strong impact on the attractive in appearance of building and uses.When adopting the concrete base plate as the permanent base plate do not removed, as the patent No. is 03227765.2, name is called the utility model patent of " a kind of floor spiced by steel reinforced concrete ", Instructions Page 3 the 13rd in this patent walks to the implementation that has specifically described this utility model in the 22nd row, " this floor spiced by steel reinforced concrete; comprise precast member for reinforcing bar concrete; reinforcing bar; floor is assemblied to form by the polylith precast member for reinforcing bar concrete; both sides have hole under the precast member for reinforcing bar concrete longitudinal rib; reinforcing bar passes the hole of member both sides, connect the polylith precast member for reinforcing bar concrete, after floor spiced, in the groove again concreting fill and lead up."; in this utility model patent scheme; floor is assemblied to form by the polylith precast member for reinforcing bar concrete; and form crisscross layout and form bi-directional configuration by now wearing the existing reinforcing bar of reinforcing bar and precast member for reinforcing bar concrete; do not need on-the-spot formwork; now wear the original reinforcing bar of reinforcing bar and precast member for reinforcing bar concrete and form crisscross layout, can bear bidirectional load, but, the Cast-in-place concrete in this floor and the shear resistance at the superimposed interface between the base plate are low, material consumptions such as the reinforcing bar that superstructure or roof construction are used, concrete are big, the cost height, and globality is poor.Therefore, develop a kind of novel bearing type base plate member for being badly in need of.

(3) summary of the invention

The object of the present invention is to provide a kind of bearing type base plate member, when being applied to In-situ cast concrete board, have that intensity height, rigidity are big, the shear resistance at superimposed interface is strong, the steel bar concrete material is economized, characteristics such as cost is low, good integrity, easy construction.

Solution of the present invention is on the basis of existing technology, comprise base plate, it is characterized in that also including the truss of at least one grade separation, truss is arranged on the base plate, and the formation that links to each other is whole, truss is provided with upper chord, lower chord, web member, and web member links to each other with lower chord with upper chord, is provided with at least one Cavity structural member at least one side of truss.Like this, when bearing type base plate member is applied to In-situ cast concrete board, owing to also include the truss of at least one grade separation, thereby bearing type base plate member has characteristics such as intensity height, rigidity are big, easy construction, and can improve the mutual wedge action between Cast-in-place concrete and the truss greatly, improve the shear resistance at the superimposed interface between Cast-in-place concrete and the base plate, improve the overall performance of In-situ cast concrete board, simultaneously, because bearing type base plate member is provided with Cavity structural member, thereby, can significantly reduce the reinforcing bar of In-situ cast concrete board and the consumption of concrete, reduce cost; In addition, bearing type base plate member can be realized producing in enormous quantities in factory, help reducing production costs and construction cost, be applicable to that hollowcore slab, superstructure, roof system, sole plate, body of wall and the bridge of various cast-in-situ reinforced concretes or prestressed reinforced concrete uses, be specially adapted to arch without beam and use.

Feature of the present invention is that also described Cavity structural member is the open cavity member.Like this, when described Cavity structural member was the open cavity member, various preheating embedding lines or other prefabricated suspender member can be pre-buried very easily in Cavity structural member, simultaneously, the height of Cavity structural member can require to adjust according to difference, to satisfy application need, is very easy to application.

Feature of the present invention is that also described open cavity member has the connector that connects base plate, and connector connects into integral body with open cavity member and base plate.Like this, when being connected to form integral body by connector between open cavity member and the base plate, open cavity member and base plate are convenient and fast connection, both can separately pile up, transport, assemble use again after arriving site of deployment, be very easy to construction application, simultaneously, the height of open cavity member can rationally be adjusted according to actual needs and satisfy the demand.

Feature of the present invention is that also described open cavity member and base plate are for flexibly connecting.Like this, when open cavity member and base plate when flexibly connecting, open cavity member and base plate are convenient and fast connection, both can separately pile up, transport, and assemble use again after the arrival site of deployment, are very easy to construction application, simultaneously, according to different needs, also can dismantle, greatly facilitate production application.

Feature of the present invention is that also described open cavity member has the connector that connects truss, and connector connects into integral body with open cavity member and truss.Like this, when connecting into integral body by connector between open cavity member and the truss, convenient and fast connection between the two, simultaneously, both secure and reliable connections have made things convenient for and have manufactured, and have improved production efficiency.

Feature of the present invention is that also described open cavity member and truss are for flexibly connecting.Like this, when being flexible connection between open cavity member and the truss, both can separately produce, pile up, transport, and after waiting to be transported to site of deployment, assembling is used again, has reduced the proportion of goods damageds of bearing type base plate member significantly, has saved cost.

Feature of the present invention also is in the described open cavity member support member is arranged.Like this, when being provided with support member in the Cavity structural member, support member has carried out bracing reinforcement to Cavity structural member, makes bearing type base plate member in application process, and Cavity structural member is difficult for being damaged by pressure by load, has reduced the loss of bearing type base plate member, has reduced the proportion of goods damageds.

Feature of the present invention is that also described open cavity member contacts with base plate.Like this, when the open cavity member contacted with base plate, base plate had played the effect of shutoff open cavity member, in the application process of member, can prevent effectively that concrete from entering in the open cavity member, had improved the hollow rate of In-situ cast concrete board.

Feature of the present invention is that also described Cavity structural member is the closed hollow box.Like this, when described Cavity structural member is the closed hollow box, can prevent effectively that concrete from entering in the Cavity structural member.

Feature of the present invention is that also described closed hollow box and base plate fuse.Like this, when closed hollow box and base plate fuse, the good integrity of bearing type base plate member, both are difficult for division destruction, simultaneously, the bearing type base plate member construction application is simple, quick and easy for installation, reduced difficulty of construction, alleviated constructor's labour intensity, improve operating efficiency, reduced cost.

Feature of the present invention is that also described closed hollow box and base plate are for flexibly connecting.Like this, the closed hollow box can separate with base plate to be manufactured, the position of closed hollow box on base plate can be adjusted simultaneously, made things convenient for construction application, particularly make things convenient for the laying of reinforcing bar and preheating embedding line, when the closed hollow box has hindered the laying of reinforcing bar, can adjust the position of closed hollow box, after treating that reinforcing bar or line layout are good, again design attitude is returned in the adjustment of closed hollow box.

Feature of the present invention is that also described closed hollow box and truss fuse.Like this, when closed hollow box and truss fused, truss had also played the effect that connects Cavity structural member when strengthening base plate strength, all Cavity structural members have been connected into integral body, has played fixation accurately and effectively.

Feature of the present invention is that also described closed hollow box and truss are for flexibly connecting.Like this, when closed hollow box and truss when flexibly connecting, closed hollow box and truss are convenient and fast connection, both can separately pile up, transport, assemble use again after arriving site of deployment, be very easy to construction application, simultaneously, the height of closed hollow box can rationally be adjusted according to actual needs and satisfy the demand, in addition, according to different needs, also can dismantle, greatly facilitate production application.

Feature of the present invention is that also described closed hollow box and base plate are provided with at interval.Like this, when bearing type base plate member was applied in the In-situ cast concrete board, Cast-in-place concrete entered in the interval between closed hollow box and the base plate, and the overall performance of corresponding In-situ cast concrete board is better.

Feature of the present invention is that also described closed hollow box and base plate or truss are that band is connected.Like this, when closed hollow box and base plate or truss are band when being connected, its link cost is low, and connection speed is fast, difficulty is little, simultaneously, because of band has good extensibility, it has been constituted flexibly connect, and during bearing load, connects survivablely, has improved reliability.

Feature of the present invention is that also described closed hollow box and base plate or truss are that non-return jack buckle is connected.Like this, when closed hollow box and base plate or truss are that non-return jack buckle is when being connected, can prevent effectively that buckle from becoming flexible landing, simultaneously, after non-return jack snap lock, be difficult between closed hollow box and base plate or the truss producing offset deviation, guaranteed the accuracy of bearing type base plate member effectively.

Feature of the present invention also is the vertically arrangement between truss of described at least two above Cavity structural members.Like this, after bearing type base plate member is applied in the In-situ cast concrete board, can improve the internal construction of In-situ cast concrete board effectively, save reinforcing bar and concrete consumption, further reduce cost.

Feature of the present invention also be described at least two above Cavity structural members between truss vertically alternately.Like this, vertically alternately, when described bearing type base plate member was applied in the In-situ cast concrete board, Cast-in-place concrete poured in the clearance space between the Cavity structural member Cavity structural member between truss, form cast-in-place concrete hidden rib, can increase substantially the supporting capacity and the mechanical property of In-situ cast concrete board.

Feature of the present invention is that also described at least two evacuation chamber members are transversely arranged.Like this, after described bearing type base plate member was applied in the In-situ cast concrete board, Cast-in-place concrete had formed cast-in-place concrete hidden rib in pouring at interval, can improve the inside load-carrying construction of In-situ cast concrete board effectively.

Feature of the present invention also is the arrangement of described at least two evacuation chamber member lateral separations.Like this, arrange the Cavity structural member lateral separation, and when described bearing type base plate member was applied in the In-situ cast concrete board, Cast-in-place concrete poured in the clearance space between the Cavity structural member, has formed cast-in-place concrete hidden rib, has increased substantially the supporting capacity and the mechanical property of In-situ cast concrete board.

Feature of the present invention also is the horizontal and vertical arrangement of described at least two row two evacuation chamber members.Like this, when bearing type base plate member is provided with the horizontal and vertical arrangement of at least two row two evacuation chamber members, after described bearing type base plate member is applied in the In-situ cast concrete board, Cast-in-place concrete pours in the interval between the Cavity structural member, formed the cast-in-place concrete hidden rib that intersects mutually, improve the In-situ cast concrete board internal construction, improved the supporting capacity and the mechanical property of In-situ cast concrete board.

Feature of the present invention also is described at least two row two the evacuation chamber member is horizontal and vertical to be spaced.Like this, when bearing type base plate member is provided with at least two row two the evacuation chamber member is horizontal and vertical when being spaced, after described bearing type base plate member is applied in the In-situ cast concrete board, Cast-in-place concrete pours in the interval between the Cavity structural member, formed the cast-in-place concrete hidden rib that intersects mutually, improve the In-situ cast concrete board internal construction, improved the supporting capacity and the mechanical property of In-situ cast concrete board.

Feature of the present invention is that also described truss is the space truss of square-section.Like this, when truss is the space truss of square-section, after bearing type base plate member is applied in the In-situ cast concrete board, after Cast-in-place concrete and the truss combination, increased substantially the supporting capacity and the mechanical property of In-situ cast concrete board.

Feature of the present invention is that also described truss is the space truss of triangular-section.Like this, when truss is the space truss of triangular-section, after bearing type base plate member is applied in the In-situ cast concrete board, after Cast-in-place concrete and the truss combination, increased substantially the supporting capacity and the mechanical property of In-situ cast concrete board.

Feature of the present invention is that also described truss is the space truss in del cross section.Like this, when truss is the space truss in del cross section, after bearing type base plate member is applied in the In-situ cast concrete board, after Cast-in-place concrete and the truss combination, increased substantially the supporting capacity and the mechanical property of In-situ cast concrete board.

Feature of the present invention has been that also at least three Cavity structural members are parallel.Like this, three Cavity structural members are parallel, and Cavity structural member has formed the Cavity structural member group on base plate, greatly facilitate the making and the installation of the making and the installation, particularly large-scale bearing type base plate member of bearing type base plate member, can increase substantially efficiency of construction.

Feature of the present invention also is to be connected with between described truss and the truss fixedly muscle.Like this, after being connected and fixed muscle between the truss, fixedly muscle firmly connects into whole truss system with truss, can improve the connective stability between the truss on the base plate greatly, make bearing type base plate member piling up, transport, being difficult for being damaged in installation and the construction application process, reduced the proportion of goods damageds of bearing type base plate member.

Feature of the present invention is that also described fixedly muscle is for intersecting fixedly muscle up and down.Like this, fixedly muscle can improve the connective stability between the truss on the base plate greatly for intersecting fixedly muscle up and down, has reduced the proportion of goods damageds of bearing type base plate member.

Feature of the present invention is that also described fixedly muscle has upward fixedly muscle and following fixedly muscle.Like this, by last fixedly muscle and following fixedly being connected and fixed of muscle, truss is firmly connected into whole truss system, can improve the connective stability between the truss on the base plate greatly, make bearing type base plate member piling up, transport, being difficult for being damaged in installation and the construction application process, reduced the proportion of goods damageds of bearing type base plate member.

Feature of the present invention is that also described fixedly muscle is snakelike fixedly muscle, and described truss links to each other with base plate and is meant that base plate and snakelike fixedly muscle are welded to connect.Like this, when fixing muscle is snakelike fixedly muscle, snakelike fixedly muscle has further improved the rigidity that is connected between truss and the base plate, increased substantially the shear resistance of bearing type base plate member, make bearing type base plate member pile up, transport, not fragile in installation and the work progress, reduce the proportion of goods damageds of bearing type base plate member.

Feature of the present invention is also that described truss and base plate link to each other and is meant that base plate is connected with truss through suspension rod.Like this, when truss was connected by suspension rod with base plate, both all can separately make, and can improve the production efficiency of bearing type base plate member greatly, and simultaneously, both are easy to connect, can separately be transported to the job site and assemble, had made things convenient for production, transportation and application.

Feature of the present invention is also that described truss links to each other with base plate and is meant that base plate and web member are welded to connect.Like this, truss and base plate adopt the mode firm and reliable connection of welding, are difficult for loose or dislocation, simultaneously, are welded to connect convenient and swiftly, and link cost is low, helps reducing production costs.

Feature of the present invention also is to be embedded with connector in the described base plate, and truss is connected with base plate by connector.Like this, base plate and truss all can divide the making of coming, transportation, be very easy to and manufacture, reduce the difficulty that is connected of base plate and truss, improved production efficiency, simultaneously, both also can separately transport, can reduce cost of transportation, and separately transport not fragile base plate, can reduce the proportion of goods damageds of bearing type base plate member effectively.

Feature of the present invention is that also the upper chord of described truss and lower chord are positioned at outside the base plate, and web member stretches into base plate interior, and is anchored in the base plate.Like this, by the connection anchoring of web member, truss and base plate have been connected to form whole bearing type base plate member, improved the globality of bearing type base plate member, make its pile up, transport, cracky not in installation and the work progress, reduced the proportion of goods damageds of bearing type base plate member.

Feature of the present invention is that also the upper chord of described truss and lower chord are positioned at outside the base plate, and the connector of lower chord and web member stretches into anchoring in the base plate.Like this, stretch into by connector and to connect anchoring in the base plate, truss and base plate are connected to form whole bearing type base plate member, can improve the globality of bearing type base plate member, make its pile up, transport, cracky not in installation and the work progress, reduced the proportion of goods damageds of bearing type base plate member.

Feature of the present invention is that also described base plate is the strip unsplit bed(-)plate.Like this, when base plate is the strip unsplit bed(-)plate, bearing type base plate member can be conveniently used in various different situations in application process, be specially adapted to little span plate, at this moment, the two ends of bearing type base plate member can directly be set up on load bearing wall or the beam, can reduce cross binding and longitudinal bracing rod member in a large number, simplify construction, reduce difficulty of construction.

Feature of the present invention is that also described base plate is cement concrete or cement mortar base plate.Like this, when base plate was cement concrete or cement mortar base plate, base plate was manufactured conveniently, and thickness is more easy to control, and simultaneously, the intensity height of base plate, rigidity are big, are applicable to the needs of various different occasions, and long-time air storage also is difficult for weathering corrosion and damages.

Feature of the present invention is that also the lower chord of described truss is embedded in cement concrete or the cement mortar base plate.Like this, after the lower chord of truss is embedded in the cement concrete base plate, truss and base plate have been combined into integral body, the globality of bearing type base plate member is better, truss and base plate are difficult for division to be destroyed, make bearing type base plate member pile up, transport, cracky not in installation and the work progress, can reduce the proportion of goods damageds of bearing type base plate member effectively.

Feature of the present invention also is in the described base plate reinforce is arranged.Like this, after being provided with reinforce in the base plate, can increase substantially intensity, rigidity and the shear resistance of base plate, make base plate pile up, transport, not frangibility, damage in installation and the work progress, simultaneously, also can improve the supporting capacity and the safety factor of bearing type base plate member in application process of base plate.

Feature of the present invention is that also described reinforce is the reinforce of net, hole, trellis.Like this, when reinforce is the reinforce of net, hole, trellis, the internal construction good integrity of base plate, can not form layer structure because of the setting of reinforce, thereby make base plate when bearing working load, be difficult for producing crack and delamination failure, guaranteed its overall performance.

Feature of the present invention is that also described reinforce is the reinforce of rib strip shaped.Like this, when reinforce is the reinforce of rib strip shaped, needs according to varying strength, can suitably adjust the quantity of the reinforce of different directions, the internal construction good integrity of base plate can not form layer structure because of the setting of reinforce, thereby make base plate when bearing working load simultaneously, be difficult for producing crack and delamination failure, guaranteed its overall performance.

Feature of the present invention is that also described reinforce and truss connect as one.Like this, after reinforce and truss connected as one, truss and reinforce had formed common stressed integral body, thereby make base plate and truss form whole bearing type base plate member, have improved the overall performance and the mechanical property of bearing type base plate member.

Feature of the present invention also is to be extended with in the described base plate reinforcing bar or iron plate reinforce.Like this, when being extended with reinforcing bar or iron plate reinforce in the base plate, truss can be connected anchoring with base plate very easily, made things convenient for manufacturing of bearing type base plate member, simultaneously, after described bearing type base plate member was applied in the In-situ cast concrete board, reinforcing bar that stretches out or iron plate reinforce can combine with Cast-in-place concrete, make prefabricated bearing type base plate member be combined into integral body with Cast-in-place concrete better, can improve the shear resistance of superposed surfaces between Cast-in-place concrete and the bearing type base plate member greatly.

Feature of the present invention is that also there are at least two horizontal reinforcing bar reinforces at the two ends of described base plate.Like this, when being extended with reinforcing bar or iron plate reinforce in the base plate, truss can be connected anchoring with base plate very easily, has made things convenient for manufacturing of bearing type base plate member.

Feature of the present invention also is to be provided with in the described base plate prestressing reinforcing bar reinforce.Like this, when being provided with prestressing reinforcing bar reinforce in the base plate, after base plate and truss combine, form the prestressing force bearing type base plate member, improved intensity, rigidity, tension, resistance to compression, and the supporting capacity of bearing type base plate member; Simultaneously, under the situation of equal design load, compare the base plate that is provided with prestressed reinforcement with common backplane and can further reduce thickness, weight reduction.

Feature of the present invention is that also described prestressed reinforcement reinforce serves as the lower chord of truss.Like this, truss and base plate have formed whole bearing type base plate member, the prestressing force lower chord has improved the strength and stiffness of bearing type base plate member, make bearing type base plate member form prestress baseboard, the supporting capacity of bearing type base plate member can be increased substantially, the needs of various different situations can be satisfied.

Feature of the present invention is that also described base plate is the base plate of cement, fiber, filler formation.Like this, when described base plate be cement, fiber, filler constitute base plate the time, base plate in light weight, the intensity height, rigidity is big, resistance to compression, shearing resistance, flexural capacity are strong, particularly carry, installation, easy construction, can reduce constructor's labour intensity significantly.

Feature of the present invention is that also the surface of described base plate is a tungued-and-grooved face.Like this, when bearing type base plate member was applied in the In-situ cast concrete board, tungued-and-grooved face can increase the bonding area of base plate and Cast-in-place concrete greatly, improved the adhesion stress between base plate and the Cast-in-place concrete, made its combination firm stable more.

Feature of the present invention also is described upper chord or/and lower chord is that the prestressing force upper chord is or/and the prestressing force lower chord.Like this, when upper chord or/and lower chord is the prestressing force upper chord during prestressing force lower chord, the prestressing force upper chord is or/and the prestressing force lower chord has improved the strength and stiffness of bearing type base plate member, make bearing type base plate member form prestress baseboard, can increase substantially its resistance to compression, tension and shear behavior, satisfy the needs of various different situations.

Feature of the present invention also is between the upper chord of described adjacent truss and the lower chord by oblique drawknot bar drawknot.Like this, after tiltedly drawknot bar drawknot is strengthened, can strengthen the balance quality of truss greatly, make and be not prone to deviation between the truss, simultaneously, also strengthen the overall performance and the stability of bearing type base plate member, make bearing type base plate member not fragile in application process.

Feature of the present invention is that also the oblique drawknot bar of drawknot constitutes scissors drawknot bar between the upper chord of described adjacent truss and the lower chord.Like this, tiltedly behind the staggered formation of the drawknot bar bridging drawknot bar, can form stable gusseted strenthening member, adjacent truss can be offset, simultaneously, also strengthened the overall performance and the stability of bearing type base plate member, made bearing type base plate member not fragile in application process.

Feature of the present invention is that also the web member of described truss has at least one to be perpendicular web member.Like this, when in the web member of truss perpendicular web member being arranged, improved the anti-pressure ability of truss, made truss be difficult for being crushed out of shape, guaranteed the stability of truss, simultaneously, also improved the weight bearing power of bearing type base plate member, made its structure more reasonable.

Feature of the present invention is that also the web member of described truss is made of continuous spirality ring muscle.Like this, when the web member of truss is made of continuous spirality ring muscle, spirality ring muscle is integral upper chord and lower chord around drawknot, the two can not separate to make it, simultaneously, and spirality ring muscle good integrity, manufacture conveniently, only need that reinforcing bar is converted into required annular and get final product, improved the production efficiency of bearing type base plate member, reduced cost.

Feature of the present invention is that also described web member is the V muscle formation of elbow.Like this, when web member was the V muscle of elbow, the elbow of V muscle can be very easily be connected with the built-in connection that stretches out in the base plate, and perhaps elbow also can directly be anchored in the base plate, makes the web member anchoring more reliable and more stable.

Feature of the present invention is that also described web member is to carry the elbow V muscle of striding chord member on the back.Like this, web member is carried chord member on the back and is striden fixed limit, makes base plate and truss not easily separated, and simultaneously, the elbow of V muscle can be very easily be connected with the built-in connection that stretches out in the base plate, and perhaps elbow also can directly be anchored in the base plate, makes the web member anchoring more reliable and more stable.

Feature of the present invention also is described upper chord or/and stiffener is arranged on the lower chord.Like this, when described upper chord or/and after on the lower chord stiffener being set, the flexural capacity of upper chord or lower chord and rigidity have obtained significantly strengthening, make upper chord and lower chord be difficult for the bending distortion, simultaneously, also improve resistance to compression, the shear resistance of truss, can guarantee the quality of bearing type base plate member effectively, improved the mechanical property of bearing type base plate member.

Feature of the present invention also is on the described upper chord frange plate is arranged.Like this, after on the upper chord frange plate being set, the horizontal non-deformability of upper chord has obtained strengthening significantly, simultaneously, has also improved resistance to compression, the shear resistance of truss, has guaranteed the quality of bearing type base plate member effectively.

Feature of the present invention also be described upper chord or/and lower chord or/and web member is T shape or L shaped or I shape or O shape bar.Like this, when described upper chord or/and lower chord or/and web member when being T shape or L shaped or I shape or O shape bar, can form various difform truss, can fully satisfy the practical application of various different situations, particularly satisfy the construction application under the load stress complicated situation.

Feature of the present invention is that also at least one of described upper chord or lower chord or web member is the open hollow bar.Like this, when in described upper chord or lower chord or the web member open hollow bar being arranged, can reduce the weight of truss significantly, improve the rigidity of truss, simultaneously, also can in the open hollow bar, pour into concrete as required, formation intensity height, the steel pipe concrete structure that rigidity is big has made things convenient for practical application.

Feature of the present invention is that also at least one of described upper chord or lower chord or web member is the steel pipe concrete bar.Like this, when upper chord or lower chord or web member at least one is the steel pipe concrete bar, the strength and stiffness of truss and shear behavior have obtained strengthening significantly, can improve resistance to compression, the shear resistance of truss greatly, improve the combination property of bearing type base plate member, make it can bear bigger working load.

Feature of the present invention is that also described upper chord is at least two parallel upper chord groups arranged side by side.Like this, when upper chord is side by side parallel upper chord group, the anti-pressure ability of bearing type base plate member, shearing resistance and rupture strength height, truss stability on the base plate is good, simultaneously, also can increase substantially the supporting capacity of bearing type base plate member, improve its combination property.

Feature of the present invention is that also described lower chord is at least two parallel lower chord groups arranged side by side.Like this, when lower chord is side by side parallel lower chord group, the anti-pressure ability of bearing type base plate member, shearing resistance and rupture strength height, truss stability on the base plate is good, simultaneously, also can increase substantially the supporting capacity of bearing type base plate member, improve its combination property.

Feature of the present invention is that also described upper chord or lower chord or web member are cold band rib steel muscle.Like this, when upper chord or lower chord or web member are cold band rib steel muscle, can improve the intensity of truss, when bearing type base plate member is applied in the In-situ cast concrete board, cold band rib steel muscle and Cast-in-place concrete are more solid and reliable in conjunction with anchoring, make base plate and Cast-in-place concrete be difficult for cracking destruction, improved the pouring quality of In-situ cast concrete board.

Feature of the present invention also be between described upper chord and the web member be connected to welding or screw mandrel is connected or the perforated pins connection.Like this, when adopting welding between described upper chord and the web member or screw mandrel is connected or during the perforated pins connection, upper chord and web member are convenient and fast connection, be connected firmly, and, make the connected mode between chord member and the web member more flexible, transport the construction site to after can assembling in advance, also can assemble in the construction site, convenient construction is used.

Feature of the present invention also be between described lower chord and the web member be connected to welding or screw mandrel is connected or the perforated pins connection.Like this, when between described lower chord and the web member be connected to welding or screw mandrel is connected or during the perforated pins connection, lower chord and web member are convenient and fast connection, be connected firmly, and, make the connected mode between chord member and the web member more flexible, transport the construction site to after can assembling in advance, also can assemble in the construction site, convenient construction is used.

(4) description of drawings

Fig. 1 is the structural representation of the embodiment of the invention 1.

Fig. 2 is the structural representation of the embodiment of the invention 2.

Fig. 3 is the structural representation of the embodiment of the invention 3.

Fig. 4 is the structural representation of the embodiment of the invention 4.

Fig. 5 is the structural representation of the embodiment of the invention 5.

Fig. 6 is the structural representation of the embodiment of the invention 6.

Fig. 7 is the structural representation of the embodiment of the invention 7.

Fig. 8 is the structural representation of the embodiment of the invention 8.

Fig. 9 is the structural representation of the embodiment of the invention 9.

Figure 10 is the structural representation of the embodiment of the invention 10.

Figure 11 is the structural representation of the embodiment of the invention 11.

Figure 12 is the structural representation of the embodiment of the invention 12.

Figure 13 is the structural representation of the embodiment of the invention 13.

Figure 14 is the structural representation of the embodiment of the invention 14.

Figure 15 is the structural representation of the embodiment of the invention 15.

Figure 16 is the structural representation of the embodiment of the invention 16.

Figure 17 is the structural representation of the embodiment of the invention 17.

Figure 18 is the structural representation of the embodiment of the invention 18.

Figure 19 is the structural representation of the embodiment of the invention 19.

Figure 20 is the structural representation of the embodiment of the invention 20.

Figure 21 is the structural representation of the embodiment of the invention 21.

Figure 22 is the structural representation of the embodiment of the invention 22.

Figure 23 is the structural representation of the embodiment of the invention 23.

Figure 24 is the structural representation of the embodiment of the invention 24.

Figure 25 is the structural representation of the embodiment of the invention 25.

Figure 26 is the structural representation of the embodiment of the invention 26.

Figure 27 is the structural representation of the embodiment of the invention 27.

Figure 28 is the structural representation of the embodiment of the invention 28.

Figure 29 is the structural representation of the embodiment of the invention 29.

(5) specific embodiment

The present invention is further illustrated below in conjunction with drawings and Examples.

The present invention as shown in drawings, comprise base plate 1, it is characterized in that also including the truss 2 of at least one grade separation, truss 2 is arranged on the base plate 1, and the formation that links to each other is whole, truss 2 is provided with upper chord 3, lower chord 4, web member 5, and web member 5 links to each other with lower chord 4 with upper chord 3, is provided with at least one Cavity structural member 6 at least one side of truss 2.In the accompanying drawing, 1 is base plate, and 2 is truss, and 3 is upper chord, and 4 is lower chord, and 5 is web member, and 6 is Cavity structural member, below in each accompanying drawing, number identically, its explanation is identical.As shown in Figure 1, bearing type base plate member comprises base plate 1, it also includes the truss 2 of grade separation, truss 2 is arranged on the base plate 1, and the formation that links to each other is whole, truss 2 is provided with upper chord 3, lower chord 4, web member 5, and web member 5 links to each other with lower chord 4 with upper chord 3, is provided with Cavity structural member 6 in the both sides of truss 2.

Feature of the present invention is that also described Cavity structural member 6 is the open cavity member.As shown in Figure 2, its described Cavity structural member 6 is the open cavity member.

Feature of the present invention is that also described open cavity member 6 has the connector 7 that connects base plate 1, and connector 7 connects into integral body with open cavity member 6 and base plate 1.As shown in Figure 2, its described open cavity member 6 has the connector 7 that connects base plate 1, and connector 7 connects into integral body with open cavity member 6 and base plate 1.

Feature of the present invention is that also described open cavity member 6 and base plate 1 are flexible connection.As shown in Figure 3, its described open cavity member 6 is flexible connection with base plate 1.

Feature of the present invention is that also described open cavity member 6 has the connector 7 that connects truss 2, and connector 7 connects into integral body with open cavity member 6 and truss 2.As shown in Figure 4, its described open cavity member 6 has the connector 7 that connects truss 2, and connector 7 connects into integral body with open cavity member 6 and truss 2.

Feature of the present invention is that also described open cavity member 6 and truss 2 are flexible connection.As shown in Figure 4, its described open cavity member 6 is flexible connection with truss 2.

Feature of the present invention also is in the described open cavity member 6 support member 8 is arranged.As shown in Figure 4, in its described open cavity member 6 support member 8 is arranged.

Feature of the present invention is that also described open cavity member 6 contacts with base plate 1.As shown in Figure 4, its described open cavity member 6 contacts with base plate 1.

Feature of the present invention is that also described Cavity structural member 6 is the closed hollow box.As shown in Figure 5, its described Cavity structural member 6 is the closed hollow box.

Feature of the present invention is that also described closed hollow box 6 fuses with base plate 1.As shown in Figure 5, its described closed hollow box 6 fuses with base plate 1.

Feature of the present invention is that also described closed hollow box 6 and base plate 1 are flexible connection.As shown in Figure 6, its described closed hollow box 6 is flexible connection with base plate 1.

Feature of the present invention is that also described closed hollow box 6 fuses with truss 2.As shown in Figure 7, its described closed hollow box 6 fuses with truss 2.

Feature of the present invention is that also described closed hollow box 6 and truss 2 are flexible connection.As shown in Figure 8, its described closed hollow box 6 is flexible connection with truss 2.

Feature of the present invention is that also described closed hollow box 6 and base plate 1 are provided with at interval.As shown in Figure 9, its described closed hollow box 6 is provided with at interval with base plate 1.

Feature of the present invention is that also described closed hollow box 6 and base plate 1 or truss 2 are connected for band 9.As shown in figure 10, its described closed hollow box 6 and truss 2 are connected for band 9, and band 9 is the specific embodiment of connector 7.

Feature of the present invention is that also described closed hollow box 6 and base plate 1 or truss 2 are connected for non-return jack buckle 10.As shown in figure 10, its described closed hollow box 6 and truss 2 are connected for non-return jack buckle 10.

Feature of the present invention is that also described at least two above Cavity structural members 6 are in 2 vertically arrangements of truss.As shown in figure 11, its described a plurality of Cavity structural members 6 are vertically arranged 2 of truss.

Feature of the present invention is that also described at least two above Cavity structural members 62 of truss vertically alternately.As shown in figure 12, its described a plurality of Cavity structural members 62 of truss vertically alternately.

Feature of the present invention is that also described at least two evacuation chamber members 6 are transversely arranged.As shown in figure 11, its described two evacuation chamber members 6 are transversely arranged.

Feature of the present invention also is the arrangement of described at least two evacuation chamber members 6 lateral separations.As shown in figure 11, arrange its described two evacuation chamber members 6 lateral separations.

Feature of the present invention also is the 6 horizontal and vertical arrangements of described at least two row two evacuation chamber members.As shown in figure 11, its described four row, two evacuation chamber members 6 horizontal and vertical arrangements.

Feature of the present invention also is described at least two row two evacuation chamber members 6 horizontal and vertical being spaced.As shown in figure 11, its described four row, two evacuation chamber members, 6 horizontal and vertical being spaced.

Feature of the present invention is that also described truss 2 is the space truss of square-section.As shown in figure 12, its described truss 2 is the space truss of square-section.

Feature of the present invention is that also described truss 2 is the space truss of triangular-section.As shown in figure 11, its described truss 2 is the space truss of triangular-section.

Feature of the present invention is that also described truss 2 is the space truss in del cross section.As shown in figure 13, its described truss 2 is the space truss in del cross section.

Feature of the present invention has been that also at least three Cavity structural members 6 are parallel.As shown in figure 13, it is parallel that it has three Cavity structural members 6.

Feature of the present invention also is to be connected with between described truss 2 and the truss 2 fixedly muscle 11.As shown in figure 14, be connected with fixedly muscle 11 between its described truss 2 and the truss 2.

Feature of the present invention is that also described fixedly muscle 11 is for intersecting fixedly muscle up and down.As shown in figure 15, its described fixedly muscle 11 is for intersecting fixedly muscle up and down.

Feature of the present invention is that also described fixedly muscle 11 has upward fixedly muscle and following fixedly muscle.As shown in figure 14, its described fixedly muscle 11 has upward fixedly muscle and following fixedly muscle.

Feature of the present invention is that also described fixedly muscle 11 is snakelike fixedly muscle, and described truss 2 links to each other with base plate 1 and is meant that base plate 1 and snakelike fixedly muscle 11 are welded to connect.As shown in figure 14, its described fixedly muscle 11 is snakelike fixedly muscle, and described truss 2 links to each other with base plate 1 and is meant that base plate 1 and snakelike fixedly muscle 11 are welded to connect.

Feature of the present invention is also that described truss 2 and base plate 1 links to each other and is meant that base plate 1 is connected with truss 2 through suspension rod 12.As shown in figure 14, its described truss 2 and base plate 1 links to each other and is meant that base plate 1 is connected with truss 2 through suspension rod 12.

Feature of the present invention is also that described truss 2 links to each other with base plate 1 and is meant that base plate 1 and web member 5 are welded to connect.As shown in figure 15, its described truss 2 links to each other with base plate 1 and is meant that base plate 1 and web member 5 are welded to connect.

Feature of the present invention also is to be embedded with connector 7 in the described base plate 1, and truss 2 is connected with base plate 1 by connector 7.As shown in figure 16, be embedded with connector 7 in its described base plate 1, truss 2 is connected with base plate 1 by connector 7.

Feature of the present invention is that also the upper chord 3 of described truss 2 and lower chord 4 are positioned at outside the base plate 1, and web member 5 stretches into base plate 1 inside, and is anchored in the base plate 1.As shown in figure 17, the upper chord 3 of its described truss 2 and lower chord 4 are positioned at outside the base plate 1, and web member 5 stretches into base plate 1 inside, and is anchored in the base plate 1.

Feature of the present invention is that also the upper chord 3 of described truss 2 and lower chord 4 are positioned at outside the base plate 1, and lower chord 4 stretches into anchoring in the base plate 1 with the connector 7 of web member 5.As shown in figure 16, the upper chord 3 of its described truss 2 and lower chord 4 are positioned at outside the base plate 1, and lower chord 4 stretches into anchoring in the base plate 1 with the connector 7 of web member 5.

Feature of the present invention is that also described base plate 1 is the strip unsplit bed(-)plate.As shown in figure 18, its described base plate 1 is the strip unsplit bed(-)plate.

Feature of the present invention is that also described base plate 1 is cement concrete or cement mortar base plate.As shown in figure 18, its described base plate 1 is the cement concrete base plate.

Feature of the present invention is that also the lower chord 4 of described truss 2 is embedded in cement concrete or the cement mortar base plate 1.As shown in figure 18, the lower chord 4 of its described truss 2 is embedded in the cement concrete base plate 1.

Feature of the present invention also is in the described base plate 1 reinforce 13 is arranged.As shown in figure 19, in its described base plate 1 reinforce 13 is arranged.

Feature of the present invention also is the reinforce of described reinforce 13 for net, hole, trellis.As shown in figure 19, its described reinforce 13 is netted reinforce.

Feature of the present invention is that also described reinforce 13 is the reinforce of rib strip shaped.As shown in figure 20, its described reinforce 13 is the reinforce of rib strip shaped.

Feature of the present invention is that also described reinforce 13 connects as one with truss 2.As shown in figure 20, its described reinforce 13 connects as one with truss 2.

Feature of the present invention also is to be extended with in the described base plate 1 reinforcing bar or iron plate reinforce 13.As shown in figure 21, be extended with reinforcing bar reinforce 13 in its described base plate 1.

Feature of the present invention is that also there are at least two horizontal reinforcing bar reinforces 13 at the two ends of described base plate 1.As shown in figure 21, there are many horizontal reinforcing bar reinforces 13 at the two ends of its described base plate 1.

Feature of the present invention also is to be provided with in the described base plate 1 prestressing reinforcing bar reinforce 13.As shown in figure 21, be provided with prestressing reinforcing bar reinforce 13 in its described base plate 1.

Feature of the present invention is that also described prestressed reinforcement reinforce 13 serves as the lower chord 4 of truss 2.As shown in figure 22, its described prestressed reinforcement reinforce 13 serves as the lower chord 4 of truss 2.

Feature of the present invention also is the base plate that described base plate 1 constitutes for cement, fiber, filler.As shown in figure 23, its described base plate 1 is the base plate of cement formation.

Feature of the present invention is that also the surface of described base plate 1 is a tungued-and-grooved face.As shown in figure 22, the surface of its described base plate 1 is a tungued-and-grooved face.

Feature of the present invention also is described upper chord 3 or/and lower chord 4 is that the prestressing force upper chord is or/and the prestressing force lower chord.As shown in figure 23, its described upper chord 3 and lower chord 4 are prestressing force upper chord and prestressing force lower chord.

Feature of the present invention also is between the upper chord 3 of described adjacent truss 2 and the lower chord 4 by oblique drawknot bar 14 drawknots.As shown in figure 15, between the upper chord 3 of its described adjacent truss 2 and the lower chord 4 by oblique drawknot bar 14 drawknots.

Feature of the present invention is that also the oblique drawknot bar 14 of drawknot between the upper chord 3 of described adjacent truss 2 and the lower chord 4 constitutes scissors drawknot bars.As shown in figure 15, the oblique drawknot bar 14 of drawknot constitutes scissors drawknot bar between the upper chord 3 of its described adjacent truss 2 and the lower chord 4.

Feature of the present invention is that also the web member 5 of described truss 2 has at least one to be perpendicular web member.What as shown in figure 23, the web member 5 of its described truss 2 had is perpendicular web member.

Feature of the present invention is that also the web member 5 of described truss 2 is made of continuous spirality ring muscle.As shown in figure 11, the web member 5 of its described truss 2 is made of continuous spirality ring muscle.

Feature of the present invention is that also described web member 5 constitutes for the V muscle of elbow.As shown in figure 23, its described web member 5 is elbow the V muscle constitutes.

Feature of the present invention is that also described web member 5 is for carrying the elbow V muscle of striding chord member on the back.As shown in figure 24, its described web member 5 is for carrying the elbow V muscle of striding chord member on the back.

Feature of the present invention also is described upper chord 3 or/and stiffener 15 is arranged on the lower chord 4.As shown in figure 25, on its described upper chord 3 stiffener 15 is arranged.

Feature of the present invention also is on the described upper chord 3 frange plate 16 is arranged.As shown in figure 26, on its described upper chord 3 frange plate 16 is arranged.

Feature of the present invention also be described upper chord 3 or/and lower chord 4 or/and web member 5 is T shape or L shaped or I shape or O shape bar.As shown in figure 27, its described upper chord 3 is an O shape bar.

Feature of the present invention is that also at least one of described upper chord 3 or lower chord 4 or web member 5 is the open hollow bar.As shown in figure 27, its described upper chord 3 is the open hollow bar.

Feature of the present invention is that also at least one of described upper chord 3 or lower chord 4 or web member 5 is the steel pipe concrete bar.As shown in figure 28, its described upper chord 3 is the steel pipe concrete bar.

Feature of the present invention is that also described upper chord 3 is at least two parallel upper chord groups arranged side by side.As shown in figure 11, its described upper chord 3 is two parallel upper chord groups arranged side by side.

Feature of the present invention is that also described lower chord 4 is at least two parallel lower chord groups arranged side by side.As shown in figure 16, its described lower chord 4 is two parallel lower chord groups arranged side by side.

Feature of the present invention is that also described upper chord 3 or lower chord 4 or web member 5 are cold band rib steel muscle.As shown in figure 29, its described web member 5 is cold band rib steel muscle.

Feature of the present invention also be between described upper chord 3 and the web member 5 be connected to welding or screw mandrel is connected or the perforated pins connection.As shown in figure 29, being connected between its described upper chord 3 and the web member 5 is welded to connect.

Feature of the present invention also be between described lower chord 4 and the web member 5 be connected to welding or screw mandrel is connected or the perforated pins connection.As shown in figure 29, being connected between its described lower chord 4 and the web member 5 is welded to connect.

During the invention process, can adopt cement concrete to make base plate 1, reinforcing bar or prestressed reinforcement reinforce 13 can be set in base plate 1, truss 2 can adopt reinforcing bar to be welded, and with template 1 adopt welding or fixedly muscle 11 be connected to form integral body, to be fixed on the base plate 1 with the Cavity structural member 6 that cement bonded sand pulp fibres net is made then, can form bearing type base plate member.

Claims (10)

1, a kind of bearing type base plate member, comprise base plate (1), it is characterized in that also including the truss (2) of at least one grade separation, truss (2) is arranged on the base plate (1), and the formation that links to each other is whole, truss (2) is provided with upper chord (3), lower chord (4), web member (5), and web member (5) links to each other with lower chord (4) with upper chord (3), is provided with at least one Cavity structural member (6) at least one side of truss (2).

2, bearing type base plate member according to claim 1 is characterized in that described Cavity structural member (6) is the open cavity member; Perhaps open cavity member (6) has the connector (7) of connection base plate (1), and connector (7) connects into integral body with open cavity member (6) and base plate (1); Perhaps open cavity member (6) is flexible connection with base plate (1); Perhaps open cavity member (6) has the connector (7) of connection truss (2), and connector (7) connects into integral body with open cavity member (6) and truss (2); Perhaps open cavity member (6) is flexible connection with truss (2); Perhaps in the open cavity member (6) support member (8) is arranged; Perhaps open cavity member (6) contacts with base plate (1).

3, bearing type base plate member according to claim 1 is characterized in that described Cavity structural member (6) is the closed hollow box; Perhaps closed hollow box (6) fuses with base plate (1); Perhaps closed hollow box (6) is flexible connection with base plate (1); Perhaps closed hollow box (6) fuses with truss (2); Perhaps closed hollow box (6) is flexible connection with truss (2); Perhaps closed hollow box (6) is provided with at interval with base plate (1); Perhaps closed hollow box (6) is connected for band (9) with base plate (1) or truss (2); Perhaps closed hollow box (6) is connected for non-return jack buckle (10) with base plate (1) or truss (2).

4, bearing type base plate member according to claim 1 is characterized in that described at least two above Cavity structural members (6) vertically arrangement between truss (2); Perhaps at least two above Cavity structural members (6) between truss (2) vertically alternately; Perhaps at least two evacuation chamber members (6) are transversely arranged; Perhaps arrange at least two evacuation chamber member (6) lateral separations; The perhaps horizontal and vertical arrangement of at least two row two evacuation chamber members (6); Perhaps horizontal and vertical being spaced of at least two row two evacuation chamber members (6); Perhaps truss (2) is the space truss of square-section; Perhaps truss (2) is the space truss of triangular-section; Perhaps truss (2) is the space truss in del cross section; Perhaps there are at least three Cavity structural members (6) parallel.

5, bearing type base plate member according to claim 1 is characterized in that being connected with between described truss (2) and the truss (2) fixedly muscle (11); Perhaps fixedly muscle (11) is the fixedly muscle about intersecting; Perhaps fixedly muscle (11) has upward fixedly muscle and following fixedly muscle; Perhaps fixedly muscle (11) is snakelike fixedly muscle, and described truss (2) links to each other with base plate (1) and is meant that base plate (1) and snakelike fixedly muscle (11) are welded to connect; Perhaps truss (2) is meant that with base plate (1) is continuous base plate (1) is connected with truss (2) through suspension rod (12); Perhaps truss (2) links to each other with base plate (1) and is meant that base plate (1) and web member (5) are welded to connect; Perhaps be embedded with connector (7) in the base plate (1), truss (2) is connected with base plate (1) by connector (7); Perhaps the upper chord (3) of truss (2) and lower chord (4) are positioned at outside the base plate (1), and web member (5) stretches into base plate (1) inside, and is anchored in the base plate (1).

6, bearing type base plate member according to claim 1 is characterized in that the upper chord (3) of described truss (2) and lower chord (4) are positioned at outside the base plate (1), and lower chord (4) stretches into the interior anchoring of base plate (1) with the connector (7) of web member (5); Perhaps base plate (1) is the strip unsplit bed(-)plate; Perhaps base plate (1) is cement concrete or cement mortar base plate; Perhaps the lower chord (4) of truss (2) is embedded in cement concrete or the cement mortar base plate (1); Perhaps in the base plate (1) reinforce (13) is arranged; Perhaps reinforce (13) is the reinforce of net, hole, trellis; Perhaps reinforce (13) is the reinforce of rib strip shaped; Perhaps reinforce (13) connects as one with truss (2); Perhaps be extended with reinforcing bar or iron plate reinforce (13) in the base plate (1); Perhaps there are at least two horizontal reinforcing bar reinforces (13) at the two ends of base plate (1); Perhaps be provided with prestressing reinforcing bar reinforce (13) in the base plate (1); Perhaps prestressed reinforcement reinforce (13) serves as the lower chord (4) of truss (2).

7, bearing type base plate member according to claim 1 is characterized in that the base plate that described base plate (1) constitutes for cement, fiber, filler; Perhaps the surface of base plate (1) is a tungued-and-grooved face; Perhaps upper chord (3) is or/and lower chord (4) is that the prestressing force upper chord is or/and the prestressing force lower chord.

8, bearing type base plate member according to claim 1 is characterized in that between the upper chord (3) of described adjacent truss (2) and the lower chord (4) by oblique drawknot bar (14) drawknot; The oblique drawknot bar (14) of drawknot constitutes scissors drawknot bar between the upper chord (3) of perhaps adjacent truss (2) and the lower chord (4); Perhaps the web member (5) of truss (2) has at least one to be perpendicular web member; Perhaps the web member (5) of truss (2) is made of continuous spirality ring muscle; Perhaps web member (5) is the V muscle formation of elbow.

9, bearing type base plate member according to claim 1 is characterized in that described web member (5) is for carrying the elbow V muscle of striding chord member on the back; Perhaps upper chord (3) is or/and there is stiffener (15) on the lower chord (4); Perhaps on the upper chord (3) frange plate (16) is arranged; Perhaps upper chord (3) or/and lower chord (4) or/and web member (5) is T shape or L shaped or I shape or O shape bar; Perhaps at least one of upper chord (3) or lower chord (4) or web member (5) is the open hollow bar.

10, bearing type base plate member according to claim 1 is characterized in that described upper chord (3) or lower chord (4) or web member (5) at least one is the steel pipe concrete bar; Perhaps upper chord (3) is at least two parallel upper chord groups arranged side by side; Perhaps lower chord (4) is at least two parallel lower chord groups arranged side by side; Perhaps upper chord (3) or lower chord (4) or web member (5) are cold band rib steel muscle; Perhaps between upper chord (3) and the web member (5) be connected to welding or screw mandrel is connected or the perforated pins connection; Perhaps between lower chord (4) and the web member (5) be connected to welding or screw mandrel is connected or the perforated pins connection.

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