Simbi Fiber yakasimbiswa kongiri (SFRC) rudzi rutsva rwezvinyorwa zvekuumbwa izvo zvinogona kudururwa uye nekuwedzera nekuwedzera huwandu hwepfupi hwemberi mune yakajairwa concrete. Yakudziridza nekukurumidza kumba uye kunze kwenyika mumakore achangopfuura. Iyo inokurira zvikanganiso zve SIMBA SIMBA Simba, Diki Ekupedzisira Kuwedzera uye Brittle Property yekongiri. Iyo ine zvinhu zvakanakisa senge simba, kupokana, kupokana nekupararira, kupenga kuramba, kuneta kuramba uye kuomarara kwakanyanya. Iyo yakaiswa muHydraulic engineering, mugwagwa uye bhiriji, kuvaka uye mamwe minda yeinjiniya.

 

一.Kuvandudzwa kwesimbi fiber yakasimbiswa kongiri

 

Fiber yakasimbiswa kongiri (FRC) ndeyekupfupika kweFiber yakasimbiswa kongiri. Iyo inowanzo kuve yakavakirwa-commosite inoumbwa yeiyo coment paste, dhaka kana kongiri uye simbi fiber, inorganic fiber kana organic fiber yakasimbiswa zvinhu. Icho chinhu chitsva chivakwa chakaumbwa neyakafanana nekuparadzira zvipfupi zvipfupi uye zvakakwirira zvine simba Simba, High Hold Walkment uye High Elkali Kudzivirira muConcrete Matrix. Fiber muongiri inogona kudzikisira chizvarwa chekutanga marara mukodhi uye nekuwedzera kwekukanganisa kwesimba rekunze, kupaza nyore nyore uye kusarongeka kuparara kwevakangoita kongiri, uye kunatsiridza zvakanyanya kuita yekusakwana, kudzora kwemvura, kupokana kwechando uye kusimbisa kudzivirirwa kwe kongiri. Fiber yakasimbiswa kongiri, kunyanya Steel fiber yakasimbiswa kongiri, yakakwezva zvakanyanya uye kutarisisa mune zvedzidzo uye engineering citcles mune inoshanda yeinjiniya nekuda kwekuita kwayo. 1907 Soviet nyanzvi B п. HeKpocab akatanga kushandisa simbi fiber yakasimbiswa kongiri; Muna 1910, HF Porter yakaburitsa chirevo chekutsvagisa pane pfupi fiber yakasimbiswa kongiri, ichipa kuti zvipfupi zvidimbu zvidimbu zvinofanirwa kuparadzaniswa zvakanyorwa kuti vasimbise matrix. Muna 1911, Graham yeUnited States yakawedzera simbi mujiseni pakati pekuvandudza simba uye kugadzikana kwekongiri; Pakazosvika 1940s, United States, Britain, France, Japan nedzimwe nyika dzainge dzavandudza kupokana nekongiri, iyo yekugadzira tekinoroji yeiyo Steel fiber congcrete, uye ichivandudza iyo Chimiro cheSimbi Fiber kuti uvandudze kusimbisa simba pakati peFiber uye kongiri matrix; Muna 1963, JP ROMUALLILDi uye GB Baton yakaburitsa pepa pane iyo Crage Development Simba Fiber yakasimbiswa neConcrete inogadziriswa neyekupararira kwesimbi mafuti esimbi anotora basa rinobudirira MuTensile kusagadzikana (fiber kuparadzanisa dzidziso), saka kutanga iyo inoshanda yekuvandudza chikamu cheichi chinyorwa chitsva. Kusvika ikozvino, neyekupfirwa uye kushandiswa kwesimbi fiber yakasimbiswa kongiri, kune marudzi mana ekongiri. yakasimbiswa kongiri.

 

二.Kusimbisa michina yeiyo Simbi Fiber yakasimbiswa kongiri

 

1.com mechanics dzidziso. Iyo dzidziso yemanyoro emuchina yakavakirwa pane dzidziso yekuenderera mberi fiber composite uye yakasanganiswa nehunhu hwekuparadzira hwesimbi mafuruji. Mufungo iyi, maumbirwo anoonekwa seyamavhiti maviri--phase ine fiber sechikamu chimwe chete uye matrix seimwe chikamu.

 

Fiber inopararira dzidziso. Fiber Sparting theory, inozivikanwawo seyakapwanya kudzikisira dzidziso, inofungidzirwa yakavakirwa pane mutsara elastic fracture mechanics. Iyi dzidziso inobata iyo iyo yekusimbisa mhedzisiro yeFibers inongoenderana neyakagoverwa yakagovaniswa fiber fiber kuparadzanisa (shoma spading).

 

三.Kuongororwa pane chinzvimbo chekuvandudza chesimbi fiber yakasimbiswa kongiri

 

1.Simbi Fiber yakasimbiswa kongiri.Simbi Fiber yakasimbiswa kongiri rudzi rwenyama yekongiri uye yakawanda-yakadzivirirwa kongiri yakaumbwa nekuwedzera simbi yepasi yekaroni, simbi yesimbi uye frp fibers mune yakajairika kongiri. Iyo yekusanganisa huwandu hwemagetsi emagetsi kazhinji 1% ~ 2% nehoriyamu, nepo 70kg Steel fiber yakasanganiswa mune yega cubic meter yekongiri nehuremu. Kureba kwesimbi maFieri kunofanirwa kunge kuri 25 ~ 60mm, iyo diamita inofanira kunge iri 0.25 , pfeka uye kupenga kuramba, Kugadzikana kwechimiro, kunyanya kuoma kunogona kuwedzerwa ne 10 ~ kagumi. Iyo mechancal midziyo yeiyo simbi fiber yakasimbiswa kongiri uye yakajairika kongiri inofananidzwa neChina. Kana zvirimo zveSteel fiber iri 15% ~ 20% uye iyo yemvura cement ratio ndeye 50% ~ ~ Nguva, iyo gadziriso yekukanganisa simba rinowedzera kusvika pa15 ~ ka20 times, iyo inoshanduka-tsika yekuwedzera inowedzera ne14 ~ ka20 times, uye kupfeka kupokana kwakanyatsogadziriswa. Naizvozvo, Simbi Fiber yakasimbiswa kongiri ine zvivakwa zvepanyama uye zvemuchina kupfuura zvakanyorwa pabani.

2.Hybrid fiber kongiri. Yakakodzera data rekutsvaga inoratidza kuti Simbi Fiber haina kukurudzira zvakanyanya simba rekumanikidza rekongiri, kana kuti kunyange kuderedza; Kuenzaniswa nekongiri kongiri, pane zvakanaka uye zvisina kunaka (kuwedzera uye kuderera) kana kunyangwe maonero ekukanganisika Mukuwedzera, Simbi Fiber yakasimbiswa kongiri ine mamwe matambudziko, yakadai seyakagwinya, mutengo wakakwira, ngura uye tosatadza kuputika, izvo zvakakanganisa kushandira madhigirii akasiyana. Mumakore achangopfuura, vamwe vadzidzi vepamba uye vekunze vakatanga kutarisisa kuHybrid fiber Concrete (HFRC), vachiedza kusanganisa mafuro akasiyana nezvinhu zvakasiyana uye zvakanakira Kuisa matanho ekumisikidza akasiyana-siyana emakongiri, kuitira kuti uwane zvinodiwa zvemapurojekiti akasiyana. Nekudaro, nezvenyaya yayo dzakasiyana-siyana masangano, kunyanya kukanganisa kwayo kwekuneta uye kukuvara kwemitemo uye kusvibiswa kwemitambo uye kusanganisa kusanganisa mari uye kusanganisa chikamu chefiti, hukama pakati pezvikamu zvezvinyorwa zvemidziyo, zvinosimbisa maitiro uye kusimbisa michina, anti fripue performance, kukundikana kwemuchina Uye tekinoroji yekuvaka, matambudziko emusanganiswa anoenderana dhizaini inoda kuwedzeredzwa.

3.Layance Indel Fiber yakasimbiswa kongiri.Monolithic fiber yakasimbiswa kongiri haina nyore kusanganisa zvisina kunaka, iyo fiber iri nyore kugutsa, huwandu hwemiti hombe yakakura, uye mutengo wakakwira, izvo zvinokanganisa zvinoshanda. Kuburikidza nehuwandu hweinjiniya hwekuratidzira uye gadziriro yekutsvaga, rudzi rutsva rwesimbi fiber chimiro, layer simbi fiber yakasimbiswa kongiri (lsfrc), inokurudzirwa. Chikamu chidiki chesimbi fiber zvakanyanyisa kugoverwa pane yepamusoro uye yakaderera nzvimbo yemugwagwa slab, uye yepakati ichiri yakajeka concrete layer. Iyo Simbi Fiber muLSFRC kazhinji yakagoverwa mumanzwiro kana muchina. Iyo Simbi Fiber inguva yakareba, uye kureba kuyambira kazhinji kazhinji pakati pe70 ~ 120, kuratidza maviri-dimensional kugoverwa. Pasina Kukanganisa Zvivakwa Zvekuita, izvi hazvingori chete zvakanyanya kuderedza huwandu hwesimbi fiber, asi zvakare zvinodzivirira phenomenon ye fiber Agglomeration mukusanganisa kwechibvumirano chakabatanidzwa. Uye zvakare, chinzvimbo chesimbi fiber layer muongororo ine simba rakakura pane yakasindimara simba rekongiri. Iyo yekusimbisa mhedzisiro yesimbi fiber layer pazasi yekongiri ndiyo yakanyanya kunaka. Nechinzvimbo chesimbi fiber layer ichifamba, iyo inosimbisa mhedzisiro inoderera zvakanyanya. Simba rinosindimara resimba reLSFRC rinopfuura makumi matatu neshanu muzana kupfuura iro rakapetwa kongiri pamwe neiyo musanganiswa musanganiswa, iyo yakaderera kupfuura iyo yekubatanidza Simbi yakasimbiswa kongiri. Nekudaro, LSFRC inogona kuchengetedza yakawanda yemutengo wezvinhu, uye hapana dambudziko rekusanganisa rakaoma. Naizvozvo, LSFRC chimwe chinhu chitsva chine midziyo yakanaka yezvemagariro uye ehupfumi uye tarisiro yekunyorwa, iyo yakakodzera yekuziva uye kushandiswa mukuvakwa kwekutandarira.

 

4.Yakarongedzwa hybrid fiber kongiri.Layer Hybrid Fiber inosimbisa Concrete (LHFRC) ndeyemhando yekubatanidza yakaumbwa nekuwedzera 0.1% polypropylene fiber yeLSFRCE FALLEL SELLEL SIMBA uye Yakakwira Ekupedzisira fiber concrete uye iyo bani concrete mune yepakati layer. Inogona kukurira kushaya simba kweLSFRC yepakati pekono concrete layer uye kudzivirira iyo ingangogona ngozi dzekuchengetedza mushure mekunge simbi yesimbi yapera kupera simba. LHFRC inogona kuvandudza zvakanyanya simba rinoslippural of kongiri. Kuenzaniswa nekongiri kongiri, isimba rayo rinosindimara rekongiri rinowedzerwa ne 20%, uye tichienzanisa neLSFRC Iyo inoshanduka elastic modulus yeLHFRC ndeye 1.3% yakakwirira kupfuura iyo yeiyo yakajeka concrete uye 0.3% yakaderera pane iyo yeLSFRC. LHFRC inogona zvakare kusimudzira kuomarara kwekongiridzo, uye yayo inoshanduka index index inenge maawa masere ayo eakangoita kongiri uye 1,3 nguva yeLSFRC. Uyezve, nekuda kwekusiyana kwekuita kwemaviri kana anopfuura majenji muCongrc muConcrete Fiber uye Steel Fiber inogona kujairwa zvakanyanya, kusimba, kuomarara, kupaza simba , Silumuralural Simba uye Simba reChiniroli rechinhu, vandivise hunhu hwekunyama uye kuwedzera hupenyu hwebasa rezvinyorwa.

-Abstract (Shanxi Architecture, vol. 38, Nha. 11, Chen Huiqing)