CN105822000A - Steel plate and concrete composite beam and slab structure system - Google Patents

Steel plate and concrete composite beam and slab structure system Download PDF

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Publication number
CN105822000A
CN105822000A CN201610160360.7A CN201610160360A CN105822000A CN 105822000 A CN105822000 A CN 105822000A CN 201610160360 A CN201610160360 A CN 201610160360A CN 105822000 A CN105822000 A CN 105822000A
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plate
steel
concrete
steel plate
precast
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马波
储艳春
葛鸿辉
褚濛
倪南
左绍兵
李磊
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Shanghai Nuclear Engineering Research and Design Institute Co Ltd
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Shanghai Nuclear Engineering Research and Design Institute Co Ltd
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
    • E04B5/40—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element with metal form-slabs

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Rod-Shaped Construction Members (AREA)

Abstract

The invention discloses a steel plate and concrete composite beam and slab structure system. The system comprises concrete brackets, a steel plate and concrete precast beam, steel plate and concrete precast plates, and a beam and slab concrete composite layer. The steel plate and concrete precast beam and the precast plates are precast in a factory; a concrete of the composite layer is poured after the precast beam and the precast plates are lift on site. The steel plate and concrete precast beam comprises a beam bottom, and steel plates at two sides, T-shaped steel at the bottom of the beam, angle steel and lifting lugs at the side of the beam, longitudinal steel bars on the top of the beam, and tie bars in the middle of the beam. Each steel plate and concrete precast plate comprises a steel plate at the bottom of the plate, T-shaped steel, unidirectional steel bars on the bottom of the plate, bidirectional steel bars at the top of the plate and diagonal steel bars in the plate. When the beam and slab structure system is under construction, the steel plate and concrete precast beam is fixedly mounted on bracket supports firstly, then the steel plate and the concrete precast plates are mounted on the lifting lugs of the precast beam, and finally, the concrete composite layer is poured on the precast beam and the precast plates. The steel plate and concrete composition beam and slab structure system has favorable integrity, and has the anti-seismic property which is coincident with that of a cast-in on-site structure; a composite part is low in sectional height and is capable of increasing a net height of a storey.

Description

一种钢板混凝土叠合梁板结构体系A Steel Plate Concrete Composite Beam-Slab Structural System

技术领域technical field

本发明属于建筑结构技术领域，具体涉及一种钢板混凝土叠合梁板结构体系。The invention belongs to the technical field of building structures, and in particular relates to a steel plate concrete composite beam-slab structure system.

背景技术Background technique

现浇楼板施工周期长，不能进行预制与模块化施工；钢梁+压型钢板的组合楼板，组合截面高降低了房间净高，防火性能不佳，开口截面钢梁受扭不利，压型钢板跨度有限，板底无法留设预埋件。已有预制梁多为矩形或T型截面，截面高度大，自重大，不便于运输与安装，多按简支梁设计；已有预制板，截面宽度小且跨度不大，一个梁格或支承边界内需布置多块预制板，预制板之间存在缝隙，多按简支单向板设计，已有预制梁、板承载能力和整体性与现浇结构相比存在不足，抗震运用时存在限制。本发明公开了一种钢板混凝土叠合梁板结构体系，以解决上述不足之处，该梁板结构体系支座节点连接可靠，预制板按梁格或支承边界大跨大面积预制，整体性良好，抗震性能与现浇结构一致；体系大部分构件为预制构件，可工厂模块化施工，外包钢板可兼做模板且不易损坏，现场无需支设模板，只需绑扎少量钢筋与浇筑部分混凝土，提高建造效率，降低建造成本；组合构件截面高度小，可提高楼层净高；体系钢板内部布置有型钢与钢筋，火灾情况下外部钢板失效后，仍具有承载能力，防火性能优良。The cast-in-place floor slab has a long construction period, and prefabrication and modular construction cannot be carried out; the combined floor slab of steel beam + profiled steel plate, the combined section height reduces the net height of the room, and the fire performance is not good. The span is limited, and embedded parts cannot be left at the bottom of the slab. Most of the existing prefabricated beams are rectangular or T-shaped cross-sections, with large cross-section height and self-heavy weight, which are not convenient for transportation and installation, and are mostly designed according to simply supported beams; Multiple prefabricated slabs need to be arranged within the boundary, and there are gaps between the prefabricated slabs, which are mostly designed as simply supported one-way slabs. The existing prefabricated beams and slabs have insufficient bearing capacity and integrity compared with cast-in-situ structures, and there are limitations in seismic application. The invention discloses a steel plate concrete laminated beam-slab structure system to solve the above disadvantages. The beam-slab structure system supports node connections reliably, prefabricated slabs are prefabricated in large spans and large areas according to beam grids or support boundaries, and have good integrity , the seismic performance is consistent with that of the cast-in-place structure; most of the components of the system are prefabricated components, which can be modularized in the factory, and the outsourcing steel plates can also be used as formwork and are not easily damaged. The construction efficiency reduces the construction cost; the cross-sectional height of the combined components is small, which can increase the net height of the floor; the steel plate of the system is arranged with section steel and steel bars, and after the failure of the external steel plate in the event of a fire, it still has bearing capacity and excellent fire performance.

发明内容Contents of the invention

本发明提出了一种钢板混凝土叠合梁板结构体系，发明的技术方案包括，混凝土牛腿、钢板混凝土预制梁、钢板混凝土预制板、梁板混凝土叠合层。钢板混凝土预制梁与预制板工厂预制，现场吊装预制梁与预制板后浇筑叠合层混凝土。所述钢板混凝土预制梁包括，梁底和两侧钢板、梁底T型钢、梁侧角钢与挑耳、梁顶纵向钢筋、梁中部拉筋。所述钢板混凝土预制板包括，板底钢板和T型钢、板底单向钢筋、板顶双向钢筋、板内斜向钢筋。The invention proposes a steel plate concrete laminated beam-slab structure system, and the technical scheme of the invention includes concrete corbels, steel plate concrete prefabricated beams, steel plate concrete prefabricated slabs, and beam-slab concrete laminated layers. Steel plate concrete prefabricated beams and prefabricated slabs are prefabricated in the factory, and the laminated layer concrete is poured after the prefabricated beams and prefabricated slabs are hoisted on site. The steel plate concrete prefabricated beam includes steel plates at the bottom and both sides of the beam, T-shaped steel at the bottom of the beam, angle steel at the side of the beam and lugs, longitudinal steel bars at the top of the beam, and tension bars in the middle of the beam. The steel plate concrete prefabricated slab includes a slab bottom steel plate and T-shaped steel, a slab bottom unidirectional steel bar, a slab top two-way steel bar, and a slab inner inclined steel bar.

进一步地，钢板混凝土预制梁由梁底与两侧的钢板和内部填充的混凝土组成。在钢板混凝土预制梁的梁底设置的T型钢，梁侧设置的角钢、挑耳与钢加劲肋，在预制梁施工时加强梁底与两侧钢板的刚度，在梁内混凝土浇筑后可加强钢板与混凝土的粘结作用。采用钢与混凝土组合截面，刚度与强度较好，预制梁可采用扁平梁，当梁端与柱连接时，梁宽宜与柱宽相同，可减小截面高度，可提高楼层净高空间。Further, the steel plate concrete prefabricated beam is composed of steel plates on the bottom and both sides of the beam and concrete filled inside. The T-shaped steel set at the beam bottom of the steel plate concrete prefabricated beam, and the angle steel, pick ears and steel stiffeners set at the beam side can strengthen the rigidity of the beam bottom and the steel plates on both sides during the prefabricated beam construction, and the steel plate can be strengthened after concrete pouring in the beam Bonding with concrete. The steel and concrete composite section is adopted, which has better rigidity and strength. The prefabricated beam can be a flat beam. When the beam end is connected to the column, the beam width should be the same as the column width, which can reduce the section height and increase the floor net height space.

进一步地，钢板混凝土预制梁的梁顶面混凝土为凸凹的粗糙表面，并设有拉筋伸出粗糙表面，以保证预制梁混凝土与叠合层混凝土有效粘结，提高结合面的抗剪承载力。Furthermore, the concrete on the top surface of the steel plate concrete prefabricated beam is a rough surface with convex and concave, and there are tension bars protruding from the rough surface, so as to ensure the effective bonding of the prefabricated beam concrete and the laminated layer concrete, and improve the shear bearing capacity of the joint surface .

进一步地，钢板混凝土预制梁的预制、吊装等施工阶段按简支梁设计，受弯由梁底钢板和T型钢承担，受剪由梁侧钢板和角钢承担。Furthermore, the prefabrication, hoisting and other construction stages of steel plate concrete prefabricated beams are designed as simply supported beams, the bending is borne by the beam bottom steel plate and T-shaped steel, and the shear is borne by the beam side steel plate and angle steel.

进一步地，钢板混凝土预制梁的梁端支承在墙柱的混凝土牛腿上，预制梁的梁端与墙柱可留设不超过5cm的间隙，在混凝土构件施工中尺寸与精度往往存在偏差，留有间隙便于预制梁的吊装就位；牛腿顶面埋设有钢预埋件，钢预埋件与预制梁的钢板焊接连接，通过焊缝可将预制梁固定，保证后续施工安全。Furthermore, the beam end of the steel plate concrete prefabricated beam is supported on the concrete corbel of the wall column, and a gap of no more than 5 cm can be left between the beam end of the precast beam and the wall column. In the construction of concrete components, there are often deviations in size and accuracy, leaving There is a gap to facilitate the hoisting and positioning of the prefabricated beam; the top of the corbel is embedded with steel embedded parts, and the steel embedded part is welded to the steel plate of the prefabricated beam. The prefabricated beam can be fixed through the weld to ensure the safety of subsequent construction.

进一步地，墙柱在预制梁的梁顶面标高处设置施工缝，梁底和两侧钢板、梁底T型钢不伸入墙柱内，梁顶纵向钢筋锚入墙柱，梁顶钢筋现场绑扎，以往叠合梁预制时将梁顶纵向钢筋与箍筋已绑扎固定，梁顶纵向钢筋再锚入墙柱内往往造成现场就位困难。Further, the wall column is provided with construction joints at the beam top elevation of the prefabricated beam. The beam bottom and both sides of the steel plate and the T-shaped steel at the beam bottom do not extend into the wall column. In the past, when the composite beam was prefabricated, the longitudinal steel bar at the top of the beam and the stirrup had been tied and fixed, and the longitudinal steel bar at the top of the beam was anchored into the wall column, which often caused difficulties in positioning on site.

进一步地，梁侧角钢顶部开孔穿过螺杆，螺杆、梁中部拉筋与顶纵向钢筋绑扎连接，螺杆两端通过螺母与角钢固定连接，角钢、螺杆与拉筋组成梁的复合箍筋。螺杆与角钢通过螺母连接，而不是焊接，简单方便易于现场操作。Further, the top opening of the angle steel on the side of the beam passes through the screw rod, the screw rod, the tie bars in the middle of the beam are bound and connected with the top longitudinal steel bar, the two ends of the screw rod are fixedly connected with the angle steel through nuts, and the angle steel, the screw rod and the tie bars form the composite stirrup of the beam. The screw rod and angle steel are connected by nuts instead of welding, which is simple, convenient and easy to operate on site.

进一步地，钢板混凝土叠合梁正常使用阶段按两端固支梁设计，跨中受弯由梁底钢板和T型钢承担，受剪由角钢、螺杆与拉筋组成的复合箍筋承担；支座受弯由钢预埋件与预制梁钢板间的焊缝和梁顶钢筋承担，受剪由混凝土牛腿和梁叠合层混凝土承担。叠合梁两端固支设计整体受力性能良好，节点连接简单。Furthermore, the steel plate concrete composite beam is designed as a beam with fixed supports at both ends in the normal service stage, the bending in the mid-span is borne by the steel plate and T-shaped steel at the bottom of the beam, and the shear is borne by the composite stirrup composed of angle steel, screw rod and tie bar; the support The bending is borne by the weld between the steel embedded parts and the prefabricated beam steel plate and the beam top steel bar, and the shear is borne by the concrete corbel and the beam composite layer concrete. The overall mechanical performance of the fixed support design at both ends of the composite beam is good, and the node connection is simple.

进一步地，钢板混凝土预制板由板底钢板、板底钢筋、板顶双向钢筋、斜向钢筋和上部填充的混凝土组成。预制板按梁格或支撑边界尺寸整体预制，避免传统小宽度与小跨度的预制板之间存在分缝，整体性差的缺点。Further, the steel plate concrete prefabricated slab is composed of a slab bottom steel plate, a slab bottom steel bar, a slab top two-way steel bar, an oblique steel bar and concrete filled in the upper part. The prefabricated slab is prefabricated as a whole according to the size of the beam grid or the support boundary, which avoids the shortcomings of traditional small-width and small-span prefabricated slabs, such as joints and poor integrity.

进一步地，钢板混凝土预制板的板顶面混凝土为凸凹的粗糙面，并设有斜向钢筋伸出粗糙表面，以保证预制板混凝土与叠合层混凝土有效粘结，提高结合面的抗剪承载力；板底T型钢、板底钢筋、板顶双向钢筋伸出预制板混凝土边界的预留段满足锚固长度，并锚固在叠合层内，整体性良好。Further, the concrete on the top surface of the steel plate concrete prefabricated slab is a convex-convex rough surface, and there are oblique steel bars protruding from the rough surface to ensure the effective bonding of the precast slab concrete and the laminated layer concrete, and improve the shear bearing capacity of the joint surface The reserved section of the T-shaped steel at the bottom of the slab, the steel bar at the bottom of the slab, and the two-way steel bar at the top of the slab protruding from the concrete boundary of the precast slab meets the anchorage length and is anchored in the laminated layer, with good integrity.

进一步地，钢板混凝土预制板的短跨方向(或主要承载方向)的板底设置T型钢，板顶同方向设置顶部钢筋，在T型钢与顶部钢筋之间设置板内斜向钢筋形成桁架，斜向钢筋通过在T型钢顶部设有5d(d为钢筋直径)的平直段与T型钢焊接，斜向钢筋与T型钢腹板的中心线位于同一平面内。钢板混凝土预制板的板底T型钢、同方向板顶钢筋与斜向钢筋组成的钢筋桁架，其平面布置，位于钢板混凝土预制梁相邻梁侧两角钢中间位置，避免吊装时相互冲突，便于安装。Further, T-shaped steel is arranged at the bottom of the steel plate concrete prefabricated slab in the short-span direction (or main load-bearing direction), and the top reinforcement is arranged at the top of the slab in the same direction. The directional reinforcement is welded to the T-shaped steel through a straight section of 5d (d is the diameter of the steel bar) on the top of the T-shaped steel, and the oblique reinforcement and the center line of the T-shaped steel web are located in the same plane. The steel truss composed of steel plate concrete prefabricated slab bottom T-shaped steel, plate top steel bar in the same direction and inclined steel bar, its plane layout is located in the middle of the two angle steels on the adjacent beam side of the steel plate concrete precast beam to avoid mutual conflict during hoisting and facilitate installation.

进一步地，钢板混凝土预制板的另一跨度方向的板底设置钢筋，在板底钢筋与垂直方向T型钢相交处，T型钢腹板上开圆孔穿过钢筋，圆孔直径为d+5mm(d为钢筋直径)，圆孔底与钢板之间的距离不小于钢筋的保护层厚度，板顶同方向设置顶部钢筋。钢板混凝土预制板的另一跨度方向的板底与板顶钢筋，其平面布置，位于钢板混凝土预制梁相邻梁侧两角钢中间位置，避免吊装时相互冲突，便于安装。Further, steel bars are provided at the bottom of the steel plate concrete prefabricated slab in another span direction. At the intersection of the steel bars at the bottom of the slab and the T-shaped steel in the vertical direction, a round hole is opened on the T-shaped steel web to pass through the steel bar. The diameter of the round hole is d+5mm( d is the diameter of the steel bar), the distance between the bottom of the round hole and the steel plate is not less than the thickness of the protective layer of the steel bar, and the top steel bar is set in the same direction as the top of the plate. The slab bottom and slab top steel bars in the other span direction of the steel plate concrete precast slab are arranged in the middle of the two angle steels on the adjacent beam sides of the steel plate concrete precast beam to avoid conflicts during hoisting and facilitate installation.

进一步地，浇筑预制板混凝土后，将板顶钢筋与板内斜向钢筋绑扎，在工厂预制阶段完成板钢筋绑扎，现场直接整体吊装，减少现场工作量。Furthermore, after pouring the prefabricated slab concrete, the slab top reinforcement and the slab internal oblique reinforcement are bound, and the slab reinforcement binding is completed in the factory prefabrication stage, and the site is directly hoisted as a whole to reduce the on-site workload.

进一步地，钢板混凝土预制板的预制、吊装等施工阶段按简支板设计，受弯由板底钢板和T型钢承担，受剪由板内斜向钢筋承担。Furthermore, the prefabrication, hoisting and other construction stages of steel plate concrete precast slabs are designed as simply supported slabs, the bending is borne by the slab bottom steel plate and T-shaped steel, and the shear is borne by the inclined steel bars inside the slab.

进一步地，钢板混凝土预制板的支承在预制梁的挑耳上，预制板的板底T型钢与钢筋、板顶钢筋的预留段伸入并锚固在梁的叠合层内，安装梁叠合层内的纵向钢筋，预留拉筋钩住纵向钢筋后，在梁侧角钢顶部开孔处穿入螺杆，螺杆、梁中部拉筋与顶纵向钢筋绑扎连接，角钢、螺杆与拉筋组成梁的复合箍筋。可避免以往叠合梁预制时将梁顶纵向钢筋与箍筋已绑扎固定，预制板钢筋与梁钢筋冲突，无法伸入梁内锚固，整体性不佳的缺点。Furthermore, the steel plate concrete prefabricated slab is supported on the lugs of the prefabricated beams, the prefabricated slab bottom T-shaped steel and steel bars, and the reserved sections of the slab top steel bars extend into and anchor in the laminated layer of the beams, and the installation beams are superimposed For the longitudinal steel bar in the layer, after the reserved tie bar is hooked to the longitudinal steel bar, the screw rod is inserted into the opening at the top of the angle steel on the side of the beam, and the screw rod, the tie bar in the middle of the beam is bound and connected with the top longitudinal steel bar, and the angle steel, screw rod and tie bar form the beam Composite stirrups. It can avoid the disadvantages of binding and fixing the longitudinal steel bars and stirrups at the top of the beam during the prefabrication of composite beams in the past, and the conflict between the steel bars of the prefabricated slab and the steel bars of the beam, which cannot be inserted into the beam for anchoring, and the shortcomings of poor integrity.

进一步地，钢板混凝土叠合板正常使用阶段可按四边固支支座设计，受弯由板底T型钢与钢筋、板顶钢筋承担，受剪由板内斜向钢筋承担。叠合板四边固支设计整体受力性能良好，节点连接简单。Furthermore, during the normal service period of the steel plate concrete composite slab, it can be designed according to the four-sided fixed support, the bending is borne by the T-shaped steel and steel bars at the bottom of the slab, and the steel bars on the top of the slab, and the shear is borne by the oblique steel bars inside the slab. The four-sided fixed support design of the laminated slab has good overall mechanical performance, and the node connection is simple.

进一步地，预制梁的梁底钢板，预制板的板底钢板可据需要起拱，起拱高度宜为跨度的0.1％--0.3％。Further, the steel plate at the bottom of the beam of the prefabricated beam and the steel plate at the bottom of the prefabricated slab can be arched as required, and the height of the arch should be 0.1%-0.3% of the span.

本发明的效果在于：(1)梁板结构体系采用组合截面受力性能优于现有结构，支座节点设计成固端，便于安装同时整体性好，抗震性能与现浇结构一致。(2)体系大部分构件为预制构件，可工厂模块化施工，预制板按梁格或支承边界大跨大面积预制，在工厂预制阶段完成板钢筋绑扎，现场直接整体吊装，无需支设模板，只需绑扎少量梁顶纵向钢筋与浇筑叠合层的混凝土，且外包钢板不易损坏，大幅提高施工效率，降低建造成本，做到文明施工与经济环保。(3)组合构件截面高度小，可提高楼层净高，提高使用空间，经济效益良好。(4)钢板内部布置有型钢与钢筋，火灾情况下外部钢板失效后，仍具有较大承载能力，防火性能优良。The effects of the present invention are: (1) The beam-slab structural system adopts a combined cross-section with better mechanical performance than the existing structure, and the support nodes are designed as fixed ends, which is convenient for installation and has good integrity, and its seismic performance is consistent with that of the cast-in-place structure. (2) Most of the components of the system are prefabricated components, which can be modularized in the factory. The prefabricated slabs are prefabricated according to the beam grid or the supporting boundary with large spans and large areas. It only needs to bind a small amount of longitudinal steel bars on the top of the beam and pour the concrete of the laminated layer, and the outer steel plate is not easy to damage, which greatly improves the construction efficiency, reduces the construction cost, and achieves civilized construction and economical and environmental protection. (3) The cross-sectional height of the composite member is small, which can increase the net height of the floor, increase the usable space, and have good economic benefits. (4) There are section steel and steel bars arranged inside the steel plate. After the external steel plate fails in case of fire, it still has a large bearing capacity and excellent fire resistance.

附图说明Description of drawings

图1为钢板混凝土预制梁轴视图Figure 1 is the axial view of the steel plate concrete prefabricated beam

图2为钢板混凝土预制梁剖面图Figure 2 is a cross-sectional view of steel plate concrete prefabricated beams

图3为钢板混凝土预制板轴视图Figure 3 is the axial view of the steel plate concrete prefabricated slab

图4为钢板混凝土预制板剖面图Figure 4 is a cross-sectional view of the steel plate concrete prefabricated slab

图5为钢板混凝土预制梁安装于牛腿的剖面图Figure 5 is a cross-sectional view of the steel plate concrete prefabricated beam installed on the corbel

图6为钢板混凝土预制板安装于钢板混凝土预制梁的示意图Figure 6 is a schematic diagram of steel plate concrete prefabricated panels installed on steel plate concrete precast beams

图7为钢板混凝土预制板与钢板混凝土预制梁现浇混凝土叠合层的示意图Figure 7 is a schematic diagram of the cast-in-place concrete laminated layer of steel plate concrete prefabricated slab and steel plate concrete prefabricated beam

图8为钢板混凝土叠合梁板剖面图Figure 8 is a section view of steel plate concrete composite beam slab

图中，1-预制梁的钢面板，2-预制梁内T型钢，3-预制梁的钢挑耳，4-钢加劲肋，5-预制梁的混凝土，6-角钢，7-拉筋，8-预制板的钢面板，9-预制板内T型钢，10-预制板的混凝土，11-预制板底部钢筋，12-预制板顶部钢筋，13-预制板斜向钢筋，14-墙或柱，15-混凝土牛腿，16-预埋钢板及锚筋，17-螺母，18-螺杆，19-梁纵向钢筋，20-现浇混凝土。In the figure, 1-steel panel of prefabricated beam, 2-T-shaped steel in prefabricated beam, 3-steel lug of prefabricated beam, 4-steel stiffener, 5-concrete of prefabricated beam, 6-angle steel, 7-tension bar, 8-steel panel of prefabricated slab, 9-T-shaped steel in prefabricated slab, 10-concrete of prefabricated slab, 11-bottom reinforcement of prefabricated slab, 12-top reinforcement of prefabricated slab, 13-diagonal reinforcement of prefabricated slab, 14-wall or column , 15-concrete corbel, 16-embedded steel plate and anchor bar, 17-nut, 18-screw, 19-beam longitudinal reinforcement, 20-cast-in-situ concrete.

具体实施方式detailed description

下面结合附图和实施例对本发明进行进一步描述。The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

步骤1：根据设计要求在墙柱14上施工完成混凝土牛腿15，并预留施工缝，施工缝与预制梁的顶标高相同。Step 1: According to the design requirements, the concrete corbel 15 is constructed on the wall column 14, and the construction joint is reserved, and the construction joint is the same as the top elevation of the prefabricated beam.

步骤2：工厂制作钢板混凝土预制梁，完成梁底和两侧钢板1、梁底T型钢2、梁侧角钢6与挑耳3、梁顶纵向钢筋19、梁中部拉筋7等零部件的下料；在梁侧角钢6顶部开孔，将梁侧角钢6与梁侧面钢板1焊接，在梁侧面钢板顶部焊接挑耳3与加劲肋4；在T型钢顶部2焊接拉筋7，将梁底T型钢2与梁底钢板1焊接；将梁底钢板与梁侧钢板焊接形成叠合梁的外形尺寸；浇筑混凝土5，完成钢板混凝土预制梁的制作。Step 2: The factory manufactures steel plate concrete prefabricated beams, and completes the installation of steel plates at the bottom and both sides of the beam 1, T-shaped steel at the bottom of the beam 2, angle steel at the side of the beam 6 and pick ears 3, longitudinal steel bars at the top of the beam 19, and tie bars at the middle of the beam 7. material; open a hole at the top of the beam side angle steel 6, weld the beam side angle steel 6 and the beam side steel plate 1, weld the pick ear 3 and the stiffener 4 at the top of the beam side steel plate; weld the tie bar 7 at the top 2 of the T-shaped steel, and weld The T-shaped steel 2 is welded to the beam bottom steel plate 1; the beam bottom steel plate and the beam side steel plate are welded to form the external dimensions of the composite beam; concrete 5 is poured to complete the production of the steel plate concrete prefabricated beam.

步骤3：工厂制作钢板混凝土预制板，完成板底钢板8和T型钢9、板底单向钢筋11、板顶双向钢筋12、板内斜向钢筋13等零部件的下料；在T型钢9腹板上开圆孔，将斜向钢筋13焊接在T型钢9顶部，双面焊缝长5d，将板底T型钢9与板底钢板8焊接；安装与T型钢9垂直方向的板底钢筋11，钢筋穿过T型钢9腹板上的圆孔；浇筑混凝土10；将板顶钢筋12与板内斜向钢筋13绑扎，完成钢板混凝土预制板的制作。Step 3: The factory makes steel plate concrete prefabricated slabs, and completes the blanking of steel plates 8 at the bottom of the slab and T-shaped steel 9, unidirectional steel bars 11 at the bottom of the slab, two-way steel bars 12 at the top of the slab, and inclined steel bars 13 inside the slab; Open a round hole on the web, weld the oblique reinforcement 13 to the top of the T-shaped steel 9, the length of the double-sided weld is 5d, weld the bottom T-shaped steel 9 to the bottom steel plate 8; install the bottom reinforcement perpendicular to the T-shaped steel 9 11. The steel bar passes through the round hole on the web of the T-shaped steel 9; concrete is poured 10; the steel bar 12 on the top of the slab is bound to the inclined steel bar 13 inside the slab to complete the production of the steel plate concrete prefabricated slab.

步骤4：钢板混凝土预制梁达到设计强度后，吊装搁置在牛腿15支座上，将牛腿顶面埋设的钢预埋件16与预制梁的钢板1焊接连接。Step 4: After the steel plate concrete prefabricated beam reaches the design strength, the hoist is placed on the support of the corbel 15, and the embedded steel part 16 embedded on the top surface of the corbel is welded to the steel plate 1 of the prefabricated beam.

步骤5：钢板混凝土预制板达到设计强度后，吊装搁置在预制梁挑耳3上，板底T型钢9、板底单向钢筋11、板顶双向钢筋12在梁叠合层内需满足锚固长度。Step 5: After the steel plate concrete prefabricated slab reaches the design strength, hoisting is placed on the prefabricated beam lug 3, and the T-shaped steel 9 at the bottom of the slab, the unidirectional steel bar 11 at the bottom of the slab, and the two-way steel bar 12 at the top of the slab need to meet the anchorage length in the beam laminated layer.

步骤6：安装梁叠合层内的纵向钢筋19，预留拉筋7需钩住纵向钢筋19，在梁侧角钢6顶部开孔处穿入螺杆18，将螺杆18与拉筋7、梁纵向钢筋19绑扎，拧紧螺杆18与角钢6的连接螺母17；纵向钢筋19在墙柱14内需满足锚固长度。Step 6: Install the longitudinal reinforcement 19 in the laminated layer of the beam, the reserved reinforcement 7 needs to hook the longitudinal reinforcement 19, penetrate the screw 18 at the top opening of the angle steel 6 on the side of the beam, connect the screw 18 with the reinforcement 7, and the beam longitudinal The steel bars 19 are bound, and the screw rod 18 and the connecting nut 17 of the angle steel 6 are tightened; the longitudinal steel bar 19 needs to meet the anchorage length in the wall column 14 .

步骤7：浇筑梁板叠合层内的混凝土20，完成楼板结构施工。Step 7: Pouring the concrete 20 in the beam-slab laminated layer to complete the construction of the floor slab structure.

上面对本发明的实施例作了详细说明，上述实施方式仅为本发明的最优实施例，但是本发明并不限于上述实施例，在本领域普通技术人员所具备的知识范围内，还可以在不脱离本发明宗旨的前提下做出各种变化。The above embodiments of the present invention have been described in detail, the above-mentioned implementation is only the best embodiment of the present invention, but the present invention is not limited to the above-mentioned embodiments, within the knowledge of those of ordinary skill in the art, it can also be Various changes can be made without departing from the gist of the invention.

Claims (20)

1. a steel plate concrete composite beam plate structure system, it is characterised in that this system includes concrete bracket, steel plate concrete precast beam, steel plate concrete precoated plate, beam slab concrete folding layer.Steel plate concrete precast beam and precoated plate prefabrication, on-site hoisting precast beam and precoated plate after-pouring overlapping layers concrete.Described steel plate concrete precast beam includes, T-steel, beam side angle steel at the bottom of at the bottom of beam and both sides steel plate, beam and choose lacing wire in the middle part of ear, back longitudinal reinforcement, beam.Described steel plate concrete precoated plate includes, oblique reinforcing bar in one-way reinforcement, plate top two-way concrete slab, plate at the bottom of steel plate at the bottom of plate and T-steel, plate.
A kind of steel plate concrete composite beam plate structure system the most according to claim 1, it is characterised in that steel plate concrete precast beam is formed with the steel plate of both sides and the internal concrete filled by the bottom of beam.Precast beam can use flat beams, and when beam-ends is connected with post, deck-siding is preferably identical with post width.
A kind of steel plate concrete composite beam plate structure system the most according to claim 1, it is characterized in that, at the T-steel arranged at the bottom of the beam of steel plate concrete precast beam, angle steel that beam side is arranged, choose ear and steel ribbed stiffener, when precast beam is constructed at the bottom of buttress brace with the rigidity of both sides steel plate, the cementation of steel plate and concrete can be strengthened after beam inner concrete pours.
A kind of steel plate concrete composite beam plate structure system the most according to claim 1, it is characterised in that the rough surface that top surface of the beam concrete is convex-concave of steel plate concrete precast beam, and be provided with lacing wire and stretch out rough surface.
A kind of steel plate concrete composite beam plate structure system the most according to claim 1, it is characterized in that, the construction stages such as prefabricated, the lifting of steel plate concrete precast beam press simply supported beam design, are undertaken by steel plate at the bottom of beam and T-steel by curved, are cut and undertaken by beam side steel plate and angle steel.
A kind of steel plate concrete composite beam plate structure system the most according to claim 1, it is characterized in that, the beam-ends of steel plate concrete precast beam is bearing on the concrete bracket of wall column, the beam-ends of precast beam and wall column can stay and set the gap less than 5cm, bracket end face is embedded with steel built-in fitting, and steel built-in fitting is connected with the Plate Welding of precast beam.
A kind of steel plate concrete composite beam plate structure system the most according to claim 1, it is characterised in that wall column arranges construction joint at the top surface of the beam absolute altitude of precast beam, and T-steel at the bottom of at the bottom of beam and both sides steel plate, beam does not stretch in wall column, and back longitudinal reinforcement anchors into wall column.
A kind of steel plate concrete composite beam plate structure system the most according to claim 1, it is characterized in that, beam side angle steel top drilling passes screw rod, in the middle part of screw rod, beam, lacing wire is connected with top longitudinal reinforcement colligation, screw rod two ends are connected by nut and angle steel are fixing, and angle steel, screw rod form the compound stirrup of beam with lacing wire.
A kind of steel plate concrete composite beam plate structure system the most according to claim 1, it is characterized in that, steel plate concrete composite beam serviceability limit stage presses two-endpoint method design, and span centre is undertaken by steel plate at the bottom of beam and T-steel by curved, is undertaken by cutting the compound stirrup being made up of angle steel, screw rod with lacing wire；Bearing is undertaken by the weld seam between steel built-in fitting and precast beam steel plate and back reinforcing bar by curved, is cut and is undertaken by concrete bracket and beam overlapping layers concrete.
A kind of steel plate concrete composite beam plate structure system the most according to claim 1, it is characterised in that the concrete that steel plate concrete precoated plate is filled by steel plate, reinforcement, plate top two-way concrete slab, oblique reinforcing bar and top at the bottom of plate forms.Precoated plate presses beam lattice or support boundary dimensions is integral prefabricated.
11. a kind of steel plate concrete composite beam plate structure systems according to claim 1, it is characterised in that the matsurface that plate top surface concrete is convex-concave of steel plate concrete precoated plate, and be provided with oblique reinforcing bar and stretch out rough surface；T-steel at the bottom of plate, reinforcement, plate top two-way concrete slab stretch out the reserved section on precoated plate concrete border and meet anchorage length.
12. a kind of steel plate concrete composite beam plate structure systems according to claim 1, it is characterized in that, steel plate concrete precoated plate short across arranging T-steel at the bottom of the plate of direction (or mainly carrying direction), plate top is equidirectional arranges top rebars, in arranging plate between T-steel and top rebars, oblique reinforcing bar forms truss, oblique reinforcing bar is welded with T-steel by the flat segments being provided with 5d (d is bar diameter) at T-steel top, and oblique reinforcing bar is generally aligned in the same plane interior with the centrage of T-steel web.
13. a kind of steel plate concrete composite beam plate structure systems according to claim 1, it is characterized in that, the steel bar girder that T-steel, equidirectional plate top reinforcing bar at the bottom of the plate of steel plate concrete precoated plate form with oblique reinforcing bar, its horizontal layout, is positioned at angle steel centre position, steel plate concrete precast beam adjacent beams side two.
14. a kind of steel plate concrete composite beam plate structure systems according to claim 1; it is characterized in that; at the bottom of the plate in another span direction of steel plate concrete precoated plate, reinforcing bar is set; in reinforcement and vertical direction T-steel intersection; circular hole is opened through reinforcing bar on T-steel web; Circularhole diameter is d+5mm (d is bar diameter), and the distance at the bottom of circular hole and between steel plate is not less than the protective layer thickness of reinforcing bar, and plate top is equidirectional arranges top rebars.
15. a kind of steel plate concrete composite beam plate structure systems according to claim 1, it is characterized in that, with plate top reinforcing bar at the bottom of the plate in another span direction of steel plate concrete precoated plate, its horizontal layout, it is positioned at angle steel centre position, steel plate concrete precast beam adjacent beams side two.
16. a kind of steel plate concrete composite beam plate structure systems according to claim 1, it is characterized in that, the construction stages such as prefabricated, the lifting of steel plate concrete precoated plate press simply supported slab design, are undertaken by steel plate at the bottom of plate and T-steel by curved, are cut and undertaken by reinforcing bar oblique in plate.
17. a kind of steel plate concrete composite beam plate structure systems according to claim 1, it is characterized in that, steel plate concrete precoated plate be bearing in precast beam choose on ear, T-steel at the bottom of the plate of precoated plate and reinforcing bar, the reserved section of plate top reinforcing bar stretch into and are anchored in the overlapping layers of beam.
18. a kind of steel plate concrete composite beam plate structure systems according to claim 1, it is characterized in that, steel plate concrete superimposed sheet serviceability limit stage can be undertaken with reinforcing bar, plate top reinforcing bar by T-steel at the bottom of plate by curved by arbitrary loading susceptor design, cut and undertaken by reinforcing bar oblique in plate.
19. a kind of steel plate concrete composite beam plate structure systems according to claim 1, it is characterised in that steel plate at the bottom of the beam of precast beam, steel plate at the bottom of the plate of precoated plate can be according to needs arch camber, and springing height is preferably the 0.1%--0.3% of span.
The construction method of 20. a kind of steel plate concrete composite beam plate structure systems according to claim 1, it is characterised in that comprise the following steps:
Step 1: according to designing require to have constructed concrete bracket, and reserved construction joint on wall column, construction joint is identical with the top mark height of precast beam.
Step 2: factory makes steel plate concrete precast beam, completes at the bottom of beam and T-steel, beam side angle steel at the bottom of both sides steel plate, beam and choose the blanking of the parts such as lacing wire in the middle part of ear, back longitudinal reinforcement, beam；At beam side angle steel top drilling, by beam side angle steel and beam sides Plate Welding, choose ear and ribbed stiffener in beam sides steel plate welded top；In T-steel welded top lacing wire, by Plate Welding at the bottom of T-steel at the bottom of beam and beam；Steel plate at the bottom of beam and beam side Plate Welding are formed the overall dimensions of composite beam；Casting concrete, completes the making of steel plate concrete precast beam.
Step 3: factory makes steel plate concrete precoated plate, completes the blanking of the parts such as oblique reinforcing bar in one-way reinforcement at the bottom of steel plate at the bottom of plate and T-steel, plate, plate top two-way concrete slab, plate；Opening circular hole on T-steel web, oblique reinforcing bar is welded on T-steel top, the long 5d of double welded joint, by Plate Welding at the bottom of T-steel at the bottom of plate and plate；Installing the reinforcement with T-steel vertical direction, reinforcing bar is through the circular hole on T-steel web；Casting concrete；By plate top reinforcing bar and oblique reinforcing bar binding in plate, complete the making of steel plate concrete precoated plate.
Step 4: after steel plate concrete precast beam reaches design strength, lifting is shelved on bracket bearing, and the steel built-in fitting buried underground by bracket end face is connected with the Plate Welding of precast beam.
Step 5: after steel plate concrete precoated plate reaches design strength, lifting is shelved on precast beam and chooses on ear, and at the bottom of T-steel, plate at the bottom of plate, one-way reinforcement, plate top two-way concrete slab meet anchorage length in beam overlapping layers domestic demand.
Step 6: the longitudinal reinforcement in mounting rail overlapping layers, reserved lacing wire need to be hooked longitudinal reinforcement, be penetrated screw rod at beam side angle steel top drilling, by screw rod and lacing wire, beam longitudinal reinforcement colligation, tightens the attaching nut of screw rod and angle steel；Longitudinal reinforcement meets anchorage length in wall column domestic demand.
Step 7: pour the concrete in beam slab overlapping layers, completes floor construction construction.
CN201610160360.7A 2016-03-21 2016-03-21 Steel plate and concrete composite beam and slab structure system Pending CN105822000A (en)

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CN108999336B (en) * 2018-08-30 2023-12-19 天津大学建筑设计规划研究总院有限公司 Light steel grid concrete superposed beam
CN109403523A (en) * 2018-11-27 2019-03-01 福建卓越建设工程开发有限公司 Precast splice type superimposed sheet suspension type support construction and overlapping board construction method
CN109403523B (en) * 2018-11-27 2024-01-05 福建卓越建设工程开发有限公司 Prefabricated assembled laminated slab suspension type supporting structure and laminated slab construction method
CN110344844A (en) * 2019-07-08 2019-10-18 中国铁建大桥工程局集团有限公司 A construction method for track wells in track engineering
CN112144414A (en) * 2020-09-29 2020-12-29 江西省地质工程(集团)公司 Construction method for embedded ribs of small box girder top plate
CN113802866A (en) * 2021-11-02 2021-12-17 沈阳建筑大学 Hoisting structure for prefabricated bottom plate with medium and long ribs and construction method of hoisting structure
CN114232641A (en) * 2021-12-28 2022-03-25 王冰璇 Construction method of combined slab support
CN115126137A (en) * 2022-06-23 2022-09-30 中建海峡建设发展有限公司 Support-free precast concrete 3T laminated slab
CN115961734A (en) * 2022-12-08 2023-04-14 上海万斯达建筑科技有限公司 Superposed beam and superposed floor slab
CN117822787A (en) * 2024-01-18 2024-04-05 中国核工业华兴建设有限公司 Ultra-thick cast-in-situ steel plate concrete structure of nuclear power station and construction method

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