摘要：【中文】本发明公开了一种节段预制混凝土箱梁的全悬臂安装方法，用于具有伸缩缝结构的边墩的桥梁施工；在桥梁的节段预制混凝土箱梁安装过程中，在具有伸缩缝结构的边墩的上方安装两个边墩箱梁，通过临时锁紧装置将所述两个边墩箱梁进行临时锁紧，使两个边墩箱梁连接固定，然后在边墩箱梁的两侧进行全悬臂的T构箱梁安装，同时边墩可用于架桥机的过跨支撑；待该边墩以及其两侧的桥墩的T构箱梁均安装完成后，解除临时锁紧装置。本发明具有阶段预制混凝土箱梁安装简单、施工高效的特点，可广泛应用于预制装配式桥梁施工领域。 【EN】The invention discloses a full cantilever installation method of a segment precast concrete box girder, which is used for bridge construction of a side pier with an expansion joint structure; in the installation process of a section precast concrete box girder of a bridge, two side pier box girders are installed above a side pier with an expansion joint structure, the two side pier box girders are temporarily locked through a temporary locking device to enable the two side pier box girders to be connected and fixed, then the installation of full-cantilever T-shaped box girders is carried out on two sides of the side pier box girders, and meanwhile, the side piers can be used for the overspan support of a bridge girder erection machine; and after the side pier and the T-shaped box girders of the piers at the two sides of the side pier are installed, removing the temporary locking device. The invention has the characteristics of simple installation and high construction efficiency of the stage precast concrete box girder, and can be widely applied to the field of precast assembled bridge construction.

摘要：【中文】本发明公开了一种钢混组合结构剪力件连接装置及其施工方法，包括底部支撑件以及位于其顶部的钢混组合结构剪力件；所述预埋剪力件包括，槽形板以及位于顶部的工字钢，还包括混凝土结构，且在工厂将预埋剪力件中工字钢预埋在混凝土结构内，形成预制混凝土板。本发明可实现预制混凝土板和底部支撑件快速、可靠连接，施工工期短、全寿命周期内混凝土板易更换的技术效果，可广泛应用于建筑快速施工领域。 【EN】The invention discloses a steel-concrete composite structure shear member connecting device and a construction method thereof, wherein the steel-concrete composite structure shear member connecting device comprises a bottom supporting member and a steel-concrete composite structure shear member positioned on the top of the bottom supporting member; the embedded shear member comprises a groove-shaped plate, I-shaped steel and a concrete structure, wherein the I-shaped steel is positioned at the top of the groove-shaped plate, and the I-shaped steel in the embedded shear member is embedded in the concrete structure in a factory to form a precast concrete plate. The invention can realize the technical effects of quick and reliable connection of the precast concrete plate and the bottom support piece, short construction period and easy replacement of the concrete plate in the whole life cycle, and can be widely applied to the field of quick construction of buildings.

摘要：【中文】本发明公开了一种应用于湿法喷射施工的超高性能水泥基材料，其包括按重量计分的如下配料：水泥300‑400份、粉煤灰漂珠50‑100份、硅灰50‑100份、超细石灰石粉40‑70份，表面活性剂5‑15份、镁质膨胀剂30‑50份、石英砂300‑400份、珊瑚礁砂100‑200份、微丝钢纤维30‑70份、超高分子量聚乙烯纤维3‑6份、矿物添加剂1‑5份、拌合水90‑120份、速凝剂25‑45份；其中，所述表面活性剂为萘系或脂肪族类有机粉体；所述矿物添加剂为凹凸棒土凝胶粉末，平均粒径5～15μm；所述速凝剂为总碱含量不大于1％的无碱速凝剂，主要成分为硫酸铝和有机胺本发明具备实现超高性能混凝土的连续湿法喷射施工，大幅度提高喷射混凝土的力学性能和耐久性能的技术效果。可广泛应用于水泥基材料制备领域。 【EN】The invention discloses an ultrahigh-performance cement-based material applied to wet-process injection construction, which comprises the following ingredients in parts by weight: 400 parts of cement, 50-100 parts of fly ash floating beads, 50-100 parts of silica fume, 40-70 parts of superfine limestone powder, 5-15 parts of surfactant, 30-50 parts of magnesium expanding agent, 400 parts of quartz sand, 100 parts of coral reef sand, 200 parts of microfilament steel fiber, 3-6 parts of ultrahigh molecular weight polyethylene fiber, 1-5 parts of mineral additive, 90-120 parts of mixing water and 25-45 parts of accelerating agent; wherein the surfactant is naphthalene series or aliphatic organic powder; the mineral additive is attapulgite gel powder, and the average particle size is 5-15 mu m; the accelerator is an alkali-free accelerator with the total alkali content not more than 1 percent, and the main components are aluminum sulfate and organic amine. Can be widely applied to the field of cement-based material preparation.

摘要：【中文】本发明公开了一种超高性能混凝土专用复合抗裂剂，所述复合抗裂剂由以下重量分数的各组分组成：煅烧菱镁矿30～60份；陈化脱水磷石膏20～50份；生石灰10～30份；磨细钢渣粉8～16份；硫铝酸盐水泥熟料5～20份；高分子表面活性剂7～10份。本发明中的复合抗裂剂，具有改善超高性能混凝土的体积变形性能，降低超高性能混凝土的开裂风险，提升超高性能混凝土的长期耐久性的效果。 【EN】The invention discloses a special composite anti-cracking agent for ultra-high performance concrete, which comprises the following components in parts by weight: calcining 30-60 parts of magnesite; aging and dehydrating 20-50 parts of phosphogypsum; 10-30 parts of quick lime; 8-16 parts of fine steel slag powder; 5-20 parts of sulphoaluminate cement clinker; 7-10 parts of a high molecular surfactant. The composite anti-cracking agent has the effects of improving the volume deformation performance of the ultra-high performance concrete, reducing the cracking risk of the ultra-high performance concrete and improving the long-term durability of the ultra-high performance concrete.