阅读说明：本技术 带开孔板pbl键的薄壁uhpc与nc叠合板及其施工方法 (Thin-walled UHPC with perforated panel PBL key and NC superimposed sheet and its construction method ) 是由 苏家战 陈宝春 吴文天 于 2019-09-29 设计创作，主要内容包括：本发明涉及一种带开孔板PBL键的薄壁UHPC与NC叠合板,包括UHPC薄壁层和NC层,UHPC薄壁层和NC层的内部之间经预埋的开孔板PBL键浇筑为一体。该带开孔板PBL键的薄壁UHPC与NC叠合板的结构简单,开孔板PBL键能有效提高UHPC薄壁层与NC层界面粘结性能,提高叠合板的抗剪刚度,形成协同受力,设计合理,施工方便。(The present invention relates to a kind of thin-walled UHPC with perforated panel PBL key and NC superimposed sheet, including UHPC thin-walled layer and NC layers, pour and are integrated through pre-buried perforated panel PBL key between UHPC thin-walled layer and NC layers of inside.The structure of the thin-walled UHPC and NC superimposed sheet with perforated panel PBL key is simple, and perforated panel PBL bond energy effectively improves UHPC thin-walled layer and the bed boundary NC adhesive property, improves the shear stiffness of superimposed sheet, forms cooperative bearing, and design is rationally, easy for construction.)

1. a kind of thin-walled UHPC with perforated panel PBL key and NC superimposed sheet, it is characterised in that: including UHPC thin-walled layer and NC layers, It pours and is integrated through pre-buried perforated panel PBL key between UHPC thin-walled layer and NC layers of inside.

2. the thin-walled UHPC according to claim 1 with perforated panel PBL key and NC superimposed sheet, it is characterised in that: perforated panel If if PBL key includes the dry plate laterally longitudinal uniformly distributed lateral opening plate of uniformly distributed longitudinal perforated panel, dry plate, if the aperture of dry plate longitudinal direction It is integrated if plate is mutually perpendicular to cross weld with dry plate lateral opening plate.

3. the thin-walled UHPC according to claim 1 with perforated panel PBL key and NC superimposed sheet, it is characterised in that: perforated panel A part of PBL key is embedded into UHPC thin-walled layer, and another part is embedded into NC layers.

4. the thin-walled UHPC according to claim 3 with perforated panel PBL key and NC superimposed sheet, it is characterised in that: be embedded into Several laterally uniformly distributed longitudinal reinforcement item, longitudinally uniformly distributed transverse directions are equipped on the aperture hole of NC layers of perforated panel PBL key Reinforcing rod.

5. the construction method of a kind of thin-walled UHPC with perforated panel PBL key as described in claim 1-4 is any and NC superimposed sheet, It is characterized in that, sequentially including the following steps: (1) according to actual field situation and technique requirement, perforated panel PBL key is made, is opened The size spacing of hole hole needs consistent；(2) if if dry plate longitudinal direction perforated panel and dry plate lateral opening plate are mutually perpendicular to arrange, and Firm welding；(3) the perforated panel PBL key after welding is put into UHPC thin-walled layer, pours UHPC thin-walled layer, it need to be by perforated panel The surface of PBL key exposing UHPC thin-walled layer；(4) UHPC thin-walled layer is conserved；(5) aperture hole is penetrated using reinforcing rod to be bound Connection；(6) after installation UHPC thin-walled layer is in place, cast-in-place NC layers of template is made, integral, completion superimposed sheet is poured with NC layers Construction production.

Technical field

The present invention relates to a kind of thin-walled UHPC with perforated panel PBL key and NC superimposed sheet and its construction method.

Background technique

Ultra-high performance concrete (Ultra High Performance Concrete, abbreviation UHPC) is strong with superelevation Degree, high solidity, high-durability concrete material, costly due to cost, often be based on functional requirement, with steel construction or Normal concrete (Normal concrete, abbreviation NC) is combined, and forms combination or iterative structure, such as UHPC and NC Superimposed sheet, can free removal template of the prefabricated U HPC thin plate as cast-in-place NC with NC layers of common stress give full play to the use of UHPC Effect.However, since HPC layers of prefabricated U relatively thin be easy that rupture failure occurs because of insufficient rigidity in transport and lifting, and And interfacial bond property between HPC layers and NC layers of prefabricated U and cutting performance are especially prominent.

Summary of the invention

In view of the deficiencies in the prior art, technical problem to be solved by the invention is to provide a kind of with perforated panel PBL key Thin-walled UHPC and NC superimposed sheet and its construction method.

In order to solve the above-mentioned technical problem, the technical scheme is that a kind of thin-walled UHPC with perforated panel PBL key with NC superimposed sheet, including UHPC thin-walled layer and NC layers pour between UHPC thin-walled layer and NC layers of inside through pre-buried perforated panel PBL key It builds and is integrated.

Preferably, if if perforated panel PBL key includes the dry plate laterally longitudinal uniformly distributed transverse direction of uniformly distributed longitudinal perforated panel, dry plate Perforated panel, if being integrated if dry plate longitudinal direction perforated panel is mutually perpendicular to cross weld with dry plate lateral opening plate.

Preferably, a part of perforated panel PBL key is embedded into UHPC thin-walled layer, and another part is embedded into NC layers.

Preferably, it is embedded into and is equipped with several laterally uniformly distributed longitudinal directions on the aperture hole of NC layers of perforated panel PBL key Reinforcing rod, longitudinally uniformly distributed transverse steel item.

A kind of construction method of the thin-walled UHPC with perforated panel PBL key and NC superimposed sheet, sequentially includes the following steps: (1) root According to actual field situation and technique requirement, perforated panel PBL key is made, the size spacing of aperture hole needs consistent；It (2) will be several If piece longitudinal direction perforated panel is mutually perpendicular to arrange with dry plate lateral opening plate, and firm welding；(3) by the perforated panel PBL after welding Key is put into UHPC thin-walled layer, pours UHPC thin-walled layer, and perforated panel PBL key need to be exposed to the surface of UHPC thin-walled layer；(4) it conserves UHPC thin-walled layer；(5) aperture hole is penetrated using reinforcing rod and carries out binding connection；(6) after installation UHPC thin-walled layer is in place, production Cast-in-place NC layers of template, poured with NC layers it is integral, complete superimposed sheet construction production.

Compared with prior art, the invention has the following advantages: passing through perforated panel PBL key for UHPC thin-walled layer and NC Layer combination, can reinforce the rigidity of prefabricated U HPC thin-walled layer, improve UHPC thin-walled layer and the bed boundary NC adhesive property, effectively transmit The shear stress of faying face between UHPC and NC improves the deformability of superimposed sheet, and design is rationally, easy for construction, can be widely applied In bridge and building structure, as the permanent formwork of cast-in-situ steel reinforced concrete, construction efficiency and service life are improved.

The present invention will be further described in detail with reference to the accompanying drawings and detailed description.

Detailed description of the invention

Fig. 1 is the organigram of the embodiment of the present invention.

Specific embodiment

To make the foregoing features and advantages of the present invention clearer and more comprehensible, special embodiment below, and cooperate attached drawing, make detailed Carefully it is described as follows.

As shown in Figure 1, a kind of thin-walled UHPC with perforated panel PBL key and NC superimposed sheet, including UHPC thin-walled layer 1 and NC layers It pours and is integrated through pre-buried perforated panel PBL key 3 between 2, UHPC thin-walled layers and NC layers of inside.

In embodiments of the present invention, if if perforated panel PBL key includes that laterally uniformly distributed longitudinal perforated panel 4, dry plate are vertical for dry plate To uniformly distributed lateral opening plate 5, if being integrated if dry plate longitudinal direction perforated panel is mutually perpendicular to cross weld with dry plate lateral opening plate.

In embodiments of the present invention, a part of perforated panel PBL key is embedded into UHPC thin-walled layer, and another part is embedded into NC Layer.

In embodiments of the present invention, 8 are embedded on the aperture hole of NC layers of perforated panel PBL key and is equipped with several transverse directions Uniformly distributed longitudinal reinforcement item 6, longitudinally uniformly distributed transverse steel item 7.

A kind of construction method of the thin-walled UHPC with perforated panel PBL key and NC superimposed sheet, sequentially includes the following steps: (1) root According to actual field situation and technique requirement, perforated panel PBL key is made, the size spacing of aperture hole needs consistent；It (2) will be several If piece longitudinal direction perforated panel is mutually perpendicular to arrange with dry plate lateral opening plate, and firm welding；(3) by the perforated panel PBL after welding Key is put into UHPC thin-walled layer, pours UHPC thin-walled layer, and perforated panel PBL key need to be exposed to the surface of UHPC thin-walled layer, is reinforced pre- Rigidity of the UHPC thin-walled layer processed in lifting；(4) UHPC thin-walled layer is conserved；(5) aperture hole is penetrated using reinforcing rod to be tied up Prick connection；(6) after installation UHPC thin-walled layer is in place, cast-in-place NC layers of template is made, integral, completion overlapping is poured with NC layers The construction of plate makes, and can reduce the thin wall layer thickness of UHPC, and effectively transmits the shear stress of faying face between UHPC and NC, improves folded The deformability of plywood.

The present invention is not limited to above-mentioned preferred forms, anyone can show that other are each under the inspiration of the present invention The thin-walled UHPC with perforated panel PBL key and NC superimposed sheet and its construction method of kind form.It is all according to scope of the present invention patent The equivalent changes and modifications done, are all covered by the present invention.