摘要:
In a method for repairing a damaged wooden structure 21, in particular a partially submerged mooring post 23, a floating structure 1 is placed in the water and then a work platform 3 is hung on the floating structure 1. Thereafter a professional stands on the work platform 3 to remove the affected wood. Then a formwork is placed around the part of the pile where the affected part 25 has been removed. This formwork is equipped with a casting nozzle at the top. After filling the space in the formwork with epoxy resin through the casting nozzle, the formwork is removed and the repaired part can be finished.
摘要:
An installation method of a bent cap for mutually restraining adjacent pier studs in a prefabricated and assembled bridge is provided. A bent cap mold base is configured in a form of a bent cap, which includes fixedly arranging limiting steel rings at two ends of a rectangular frame and vertically arranging steel bar sleeves in the limiting steel rings, hoisting the cap bent mold base on top portions of adjacent two prefabricated pier studs, such that pier stud pre-embedded steel bars protruding from the top portions of the two prefabricated pier studs are correspondingly inserted into the steel bar sleeves at two ends of the bent cap mold base one by one, and limiting the adjacent two prefabricated pier studs in the bent cap mold base. Through the method provided by the disclosure, construction efficiency of bent cap installation may be significantly improved, and engineering quality may also be ensured.
摘要:
A bridge construction comprises a bridge support or abutment (2) and a bridge deck (1) supported thereon, comprising a composite panel (5) with a top plastic skin (6), a bottom plastic skin (8) and a core (7) between and attached to the plastic skins. The bridge deck also comprises an edge beam (9) on at least one edge of the composite panel and resting on the bridge support. The edge beam (9) overlaps the core (7) of the composite panel (5) in the height direction, while the top plastic skin (6) has a protruding part (28) which protrudes relative to the core (7). The protruding part (28) of the top plastic skin (6) extends over and is attached to the edge beam (9).
摘要:
The invention discloses a segment-assembled type pier column member with a steel-concrete composite structure, which includes a reinforcement tube embedded in a pile cap, wherein the reinforcement tube is connected with a bottom of a lower segment of a hollow steel tube pier and is poured with concrete, and pier columns in upper and lower segments are reinforced by means of segment connecting and being embedded with local reinforcing meshes. A steel cross beam is connected with an upper segment of the hollow steel tube pier in an assembled way. A pre-stressed tensioning duct is reserved between the steel cross beam and the pier column in the upper segment. According to the present invention, a construction period and construction difficulty are reduced, a construction progress is accelerated, the connecting method is safe and reliable, and is convenient to control by adopting an assembled construction method; meanwhile, good concrete compression performance and good steel tensile property are sufficiently utilized, so that the whole member is economic and convenient, is simple and fast to construct, and has a good application prospect.
摘要:
The present invention provides a form structure employed for a precast segment structure that is formed by stacking segment units upward, each of which is formed by circumferentially connecting a plurality of precast segments. The form structure comprises: an inner form disposed inside a circumferential connection part between adjacent precast segments; an inner frame provided to support the inner surface of the inner form; a frame support part provided to support the inner frame formed upwardly; an outer form disposed outside the circumferential connection part between the adjacent precast segments; and a fastening member provided to support the outer surface of the outer form.
摘要:
A system for monitoring level variations of at least one bottom region of a soil subjected to erosive and sedimentary agents, which comprises at least one monitoring element (15) fastened to said bottom, said at least one monitoring element (15) comprising sensor means for detecting a response of said at least one monitoring element (15) with respect to a stress. Said stress is a stress able to determine vibrations originating displacements of at least part of said at least one monitoring element, said response is a function of said displacements of at least part of said at least one monitoring element (15) and means (150) are provided for analysing said response with respect to a stress, identifying characteristic frequencies and correlate said characteristic frequencies with a lowering of said bottom region (20).